33d CONGRESS, x 1st Session IRESS, A ion. ) j THE U. S, NAVAL ASTRONOMICAL EXPEDITION THE SOUTHERN HEMISPHERE, THE YEARS 1849-'50-'51-'52. Lieut. ARCHIBALD MAOU.\E, } Master S. LEUVAHD PHBLPS, > Assistants. Captain's Clerk E. R. SMITH, ) VOLUME III. OBSERVATIONS TO DETERMINE THE SOLAR PARALLAX. BY LIEUT. J. M. GILLISS, LL.D. SUPERINTENDENT. WASHINGTON: A. O. P. NICHOLSON, PRINTER. MDCCCLVI. b TUB Uor™ or lUnurerrATiTni, Juiy IS, ISM. JILT IS, 1P54. — L»iJ upon UM table, and ordered to be printed. JVLT SS, 18i4.- OrArW. Tb»l 6,000 copie* of the H.-port and 1,000 oopie* of the Ol*enr»t!on« be printed ; 600 oopiei of •Mh for the ue of the Secretory of the Nary, an j 150 copioe of each for the Superintendent of the Expedition. CONTENTS. ORIGIN AND OPERATIONS OF THE EXPEDITION i-xlii Dr. C. L. Gerling suggests a new mode for determining the solar parallax iii-iv An expedition to the southern hemisphere proposed ---------.- jy A brief account of the climate of Chile v-viii The instruments necessary for the observations .----...-... viii— ix Opinions of American astronomers ---------..... x-xi Results which may possibly be obtained xi-xiv Resolutions of the American Philosophical Society and Academy of Arts and Sciences - - xiv-xv Report of the Naval Committee of the House of Representatives in favor of sending out an expedition - - xv-xvii Appropriation of funds by Congress - xviii Proposed plan of operations xviii-xxii Approbation of the programme by the Societies and Department xxii-xxiii The Meridian circle ordered from Messrs. Pistor & Martins ......... xxiii Defective condition of the instruments supposed available .......... \\i\ The Smithsonian Institution authorizes the purchase of a G.J-inch Equatorial, to fie loaned to the expedition - xxiv Telescope made by Wm. J. Young and Henry Fitz satisfactorily tried -------- xxv Congress appropriates money to pay for the telescope, &c. - xxvi Interest manifested in the expedition and valuable services rendered by scientific men in England - - xxvi Officers ordered as assistants, and preparation of the ephemeridea -.-..-.- xxvi-xxvii Circular to the friends of astronomical science -----------. xxvii-xxix Sailing of the assistants with the equipment --..-. xxir Instructions from the Secretary of the Navy -..-..-.....- xxix Instructions from the same to Lieutenant Maury, Superintendent Naval Observatory ..... Xxx Departure from the United States and arrival in Chile .-...--.... xxx Favorable reception by the government at Santiago de Chile xxxi Reasons for selecting Santiago for the observations ........... xxxi The site chosen for the observations xxxii Arrival of the assistants and equipment - - - - - - - - -- - - .. xxxii Erection of the observatories on Santa Lucia --.---..--..- xxxii The instruments mounted and work commenced .....-.--.-. xxxiii The government desires to have some of its young men instructed in practical astronomy .... xxxiii Interest and curiosity of the public- - xxxiii Progress of the observations of the planets Mars and Venus - - xxxiv-xxxv Extraordinarily favorable condition of the atmosphere - .... xxxiv Visit to the northern provinces of Chile - xxxv Zone observations and star magnitudes - - xxxvi Variations in the brilliancy of n Argui xxxvi-xxxvii Visit to Tales and the river Maule - - xxxvii Establishment of the OBSERVATORIO NACIOXAI. xxxviii Observations during our last year in Chile xxxviii-xxxix Two occultations of n Geminorum on the same evening xxxix Meridional distance between Santiago and Valparaiso xxxix Magnetical and meteorological observation! xxxix-xl Transfer the observatory and take leave of the government .......... x I Lieut MacRae is instructed to proceed across the Andes and Argentine provinces for special observations - xl-xli Return of the expedition to the United State* -....- xlij OBSERVATIONS OF THE PLAMET.3 MARS AND VENU8. INTRODUCTION— Description of the observatory X1T Description of the Equatorial xlvi Observations to determine the position of the instrument xlvii Instrumental deviations - xlviii Value of a revolution of the micrometer screw xlviii Diameter of the micrometer wire ---- xlviii (ir) 0«or Till oauat »ru*» of T*« iBIIBtlTOUT .. n Mmu»rt4L •ttie*i- TiTiosi Kaaau rial iauctmU of ik» « o» INI rm< Mi Ij-lii lii-lili Hi liii-liv .......... h-Ki JM» V ............. .. Ixxii I 1 r«»»iiia>n »u Aiiiiimi T4ci.it ............. Ixxvii &. Co»r»«i«<>».»t »«. ................. xctii 6. OwUltATIMIl ................. CXliv 7. OMUTITMMM ro«rmm WITH irMivcmi - - .......... clxxxri 8. BOIA* rABtiLti no* rumtxtrunDKiiT ouurATwiii .......... ceiz 9. K^r*TMM> or CO«DIT»OI ............... ccxiii 10. WaibHTt 4DD HK4I KMUMU .............. CCxlvi 11. FoDtHtHTAL UttlTKHK ...... . ..... .. CClJX IS. I'mi i»i«»«t •oLtTiox ............... ccxlix 13. Km*!. MH-THWI ................ cclxxv 14. I>n«n««« ................. cclxxix 15. B»CLT< .................. cclxxxiv OMUT*TIO«»— Microatlrtod otaenilluiii of M«n tnd pre-iflfttod lUri nm the opporitipa of IS40-'5Q I--I MirroMUiMl o.»«rTtUoo» of W.r. utd prr^-Wtrd «ar< ne.r the opposition of 1851- '.Vi 85-313 MiiriMitrioU oh^mitMM of VCTIIM md prc-«d«>etf4 iur» n«ir the inferior conjunction of 18T. - aif>-i80 MlefMMtriMl oUerr»tiow of Veam «nd pre^eketed «•» ortr ib« inferior conjunction of 1868 - • a- 1 -.;•'.-. M«rUU» cirrU obvenrMbw* of M>ri and orrtmin M»r» nrar th« oppt»iiicni ..f l-.M-'.Vi .... 309-318 MvrUiu elrefe oWerrsiinM of VMM and crrt.in ««r. Dr.r il,. ,„!. ii..r r.,nJHnni,m »f Kill-"! - - :il!»-:t.>i; MvriAu Hrrle oWemiioM of Vcoot wd certain «•« n««r thf iufrrior conjunr'i. u ..| l-.VJ • • - 3:17-332 i of Man. . ..mp»rrd»ilh il.r Nm.ii.-al Al.inn«c ...... :t '.V:t«i i of Mir*. 186I-1S, eompkrrd with the Niuliral Almanac ...... 337-3:t8 •rr4«1aMtonof VMM. IBGO-'SI, compared «iih ilir Nautical Almanac • • • 33U-340 «rc4 JlMiiMri of >'«•»«, 1868, compared «ith the Nautical Almanac .... ;;n Lie«tMUM U. F. Vmurjr. LL.D., &e., Sufrriatfodtat - :tir. of UM eq«MoriaI, aod pxplanalioo uf (be obvrrratiooi, bjr J. Ferguton, r»q., taa't attronomer 345-347 Mlnu»««ilnl oUrrraliooa of Man and prMclrrtrd tian near the oppmiUon of I84!t-TiMriilimil of Man and prr-wWtrd *un near the opposition of 1.- ... 37 . Mltn^Krieil »»»»rnira»« of VCMU and pnvwloeted *ur> near the inferior conjunction of 1 S5()- .M 38»- 1 1 >:, Mlir«anm»>l ttumUoM of V«aj«a aad pr« itl (MAM.) o«ja»»4tK.>»— litniutl*rj rrtjurlu. by Proteawr W». C. BomJ, director of tke obMrmtorjr ...... 417 (by iranato) Mar the oppeaitfaaj of I849--60 418-447 Man, by •IrrooMter •m«r»nt«, ROW tke opposition of I649-'50 .... 448-452 Man, by •ieroMUr •UMlllBHiU. near the opposition of 1849-'50 4:.:)-l60 C*ra or Ooo» Bora oaitai «TM»»— BatMfalMdM 463 DMeripthM of the rUjo.u.ri.1 bj Tboa. Madear, wq., her Majett/'i utraooner at the Cape 463-465 Vatoaf aratvtedofjof Ik* aaleiM>M«r«er«w 466 A^taMawMiofiao E^au>ri*l i, PWtUrfan rilitaag to tk» obi»rra>la«j« • 467 M8-4M 470 I of Han and pr» •tiactfi' sun near UK oppoiltlon of 1849-'5Q - - -171-1'.'-' CORRIGENDA, VOL. III. Page xxxii, line 36, for "dips to the east," read "dips to the west." Page 1, lines 4 and 5, transpose words "turn " and "product." Page Ixii, table, line 3, for " Plinus Lib. II, cap. XXII^Ed. Siilig I, 130, [1,] " read " Plinius [1] Lib. II, cap. XXII, Ed. SiHig I, 130, [2.]" Page Ixii, table, line 15, for " facaltatc" read "facilitate." Page Ixii, notes, line 2, after "GASSENDI, Op. Omn. VI, 464," add "p. 455, Ed. 1658." Page Ixiii, notes, Iine4,/or "VII p. 115" read "VIII p. 115." Page Ixiii, notes, lines 9, 11, Through the kindness of Dr. COGSWELL, of the Attor Library, I have obtained a copy of Halley's Southern Catalogue, Ed. Paris, 1679. The needed references are for the parallax, page 80, and for the citation from Streete, page 82. Page Ixiv, notes, line 8, for "483" read "443." Page Ixiv, notes, line 8, for "Vtntensk" read "Vetenskaps." Page Ixv, notes, line 3, for "I, p. 89" read "I, p. 4." Page Ixv, notes, line 6, for " 1768, p. 55" read " 1768, p. 355." Page Ixv, notes, line 7, for "I, p. 4" read "I, p. 100." Page Ixvii, text, line 14,/or " 2406J" read "24065." Page Ixxiii, text, lines 3, 11, 13, for "It and ia" read " ty and la." Page Ixxvi, text, lines 27, 28, for "01" read "#'." Page cxxiv, star No. 19, column I, for " 3". 2 and 2". 70 " read " 0". 2 and 2". 20. " Page cxxvi, star No. 70, column a, for "8 19 26" read "8 19 29." Page cxxxiv, star No. 43, column a, for "7 33 49" read "7 33 50." Page cxxxv, star No. 28, column I, for "26 31 16.25" read "25 31 16.25." Page cxliv, star No. 28, line 2, column date, iwtrl "Nov. 26." Page cclxviii, line I, for "All the terms containing n" read "All the terms containing u." Page cclxx, line 15, insert " w" after " — 5. 949." Page cclxx, line 24, insert "Z" after " -)- 20.674." Page cclxxi, the second equation should read " y := 2". 8970," &c. Page cclxxiv, in the first line of column 1 insert "ao" within the brackets. . Page cclxxx, the equation line 10 should- read "t — i + q." Page cclxxxv, line 6 from bottom, the first equation should read e — -~ Vp •• Page 310, No. 3, increase mean of wires and app. A. R. 0. 09. Page 310, No. 4, diminish " " 0.20. Page 310, No. 14, diminith " " 0. 13. Page 310, No. 36, increate " " 0.05. . Page 312, No. 30, diminith " " 0. 26. - Page 314, No. 41, increate " " 10. 00. Page 316, No. 4, diminith " " 0.05. Page 317, No. 2, intreate " " 0.07. Page 318, No. 21, increate " "~ 0.37. Page 320, No. 6, increate " " 0. 0'J. Page 320, No. 19, increate " " 0.44. Page 320, No. 35, diminith " " 0. 06. Page 321, No. 6, dimmish " " 0.28. Page 324, No. 36, diminish " " 0 02. Page 327, No. 31, diminith " " 0. 20. Page 331, No. 41, diminish " " 10. 00. Broken transits were reduced to middle wire, and not to the mean of the wires. A corresponding collimation correction was applied to them. AH other errors detected in the printed observations have been detailed by Dr Gould, pages cxlv-clxxxv. ADDITIONAL CORRIGENDA, VOL. II. lt«* «.n»»U.eBrf "and clear P»f*M. UM !«.>• "Pnuno r-rf •• 1'unUno. P»C««. UM «./«r "dcbf rW "dghtoen." ADDITIONAL CORRIGENDA, VOL. VI. Introduction. page xiv — JW •• * (A + V) = 11. JIMtO" rent •• log tang 4 (A + V) = 11. 318420." Ar -4 (A — V)= 10. »1«7« rW "log tang 4 (A — V) — 10. 216726, ' and dab "toy" in two placet below. Page XJUT, lines time, two, MM! one, from bottom, should read — -- = .09005339 log 5. 7275037 1-^=1.00000706 «•«•«" -8-£oo ~ "IT xrr, line §U. ihoold nwl— = .0000054 log. 4.7380296 2. 3087424 utd Ait MRB = oo p«ge* UUT and XXT, between the namben and their log». P»t« ssTit. I bare atld of the In. HnomeUr : •• It U a modiBcatlOD, by Prof. Kreil and Dr. Lloyd, of the circle devised by OMH*." I WM led to thb by the following language in a brief notice of these iiwtruments published, page 4 of the , *r., by Otpt. C. J. D. KMM. R. A. London, 1846." " A new dip-circle, to be used with imflag mlcroacopm, DM been derived by M. Gaoat, and conctructed, with modificationa, by H. Kreil and Dr. Lloyd, It U »tat«l oa page XZTI of thb Tolame that the magnetic*! and a portion of the meteorological instruments for the wct« maHe onder the direction of Col. (now General) SaUne, to whon earnest interest and assistance we are the RTeatoit obUgitlonsi. This distinguished pbysicbt informs me, Prof. Gaoss never devised a dip-circle, and that Ike only Instrument aeed by bin wan made by BoMoson, with a 9-inch needle and single reading lens. The application of rernicn aod microscope*, and UM shortening of the needle permitted thereby, was a suggestion of Dr. Lloyd. Gauss never saw and probably never beard of one of the latter Instrument*, nor did Prof. Kreil ever see one until the summer of the rear 1M7, when a set of magnetic instrument*, prepared at the request of the Austrian government, tinder the direction of Ocn. aabine, was forwarded by the Utter to Vienna. ORIGIN AND OPERATIONS OF THE U. S. IAVAL ASTRONOMICAL EXPEDITION. B° ORIGIN AND OPERATIONS U. S. NAVAL ASTRONOMICAL EXPEDITION. During the summer of 1847 a letter reached me from Dr. C. L. Gerling, a distinguished mathematician of the Marburg University, in which he says : " Since the date of my last, I have been occupied with the volume of astronomical observations you had the kindness to send me, and it has occurred to me that it might be acceptable to you to receive by letter, in advance of its publication, the contents of a brief treatise which I shall transmit to M. Schumacher in a few days for publication in the ' Astronomiche Nachrichten.' Should you find my views correct, this will enable you to commence observations in America this year, which, I fear, could not be the case if you awaited a printed copy of the paper. The subject is this : I am of opinion that astronomers act unwisely in considering the solar parallax deduced from the transits of Venus in 1761 and 1769 sufficiently correct, and do not avail themselves of more modern methods of observation for the purpose of gradually acquiring more accurate knowledge of it. It is true, indeed, that the oppositions of Mars were long ago proposed for this purpose ; but I am not aware that any effective use has been made of them since 1751, although the Nautical Almanac has regularly furnished an ephemeris. There is, however, a third method, which presented itself to me some time ago, and I cannot comprehend why it should have been so entirely neglected — I mean by observations of Venus during the period of its retrograde motion, and more especially when the planet is stationary. " The delicate and faint crescent form of Venus at the conjunctions offers excellent opportu- nities for observation ; and from what I have been able to accomplish with my small instrument, I have every reason to believe that most excellent results are obtainable with meridian instru- ments at observatories in opposite hemispheres, but lying nearly under the same meridian. Furthermore, at that time Venus is almost twice as near to the earth as is Mars when in oppo- sition, and observations upon it have the very important advantage that it is not absolutely essential they should be simultaneous, or nearly simultaneous. Again, when the planet is stationary the observations of one meridian may be readily referred to another by interpolation, without risk of error, and at this time it is much nearer to the earth than Mars can be in the most favorable case. Finally, the distance of the planet from the sun being about 29° micro- metrical, may be combined with meridional observations. In my opinion, then, it should be our object to multiply meridian observations of Venus about the periods when it is stationary, and endeavor to obtain micrometrical measurements from all parts of the earth, more especially from voyagers. Let us suppose a traveller at a place, A, of the southern hemisphere, to observe the planet in the evening at a time T referring it to a projected point of the heavens A, and that it is also observed on the meridian during adjacent days at an observalory B of the north- ern hemisphere : the meridian of the earth, in whose plane projected, Venus was found to be at the time T, will be readily ascertained from its known right ascension, (corrected by the observations at B). This terrestrial meridian will also be intersected by the parallel of the observatory at B in a point C, where a simultaneous observation on the meridian has not, IT ORlOrN AND OPERATIONS inlated olwervution, let Venus lie placed at a point ('of tlie heavens; then, the celestial arc A C is evidently tbe measure of tin- an-le under which the known place* A and C appear to Venus, and f'r»ni this angle the h<>ri/.i>ntal parallax of the planet must l>e dcdncible— the more advantageously (lie nearer tlie terrestrial line approaches to a diameter of the earth. I also imagine that it will be of great advantage if astronomers will unite in making careful meridian observations and promoting mierometrical measurements at the stationary ]«vriods to the gn-ute-t |,..>silil,. extent. For the latter class of observations, however, it is not only necessary that the limes should be previously considered, but also the attending circumstances, and a list of comparing stars be e-pccially selected. No doubt this will soon be done, should astronomers IM- inclined to adopt my proposition; but I send you what I have found for 1847. premising that partial examination has also lieen made for 181'.'. and that the local stationary point of the latter year offers much greater facilities to observation than the present. * * * * The preceding synopsis of my paper will, I hope, reach you in print after a while. Mian- time, I beg you will examine the subject, and shonlil you coincide in my views I trust you will interest American astronomers as far as you can, for I flatter myself that observations will be instituted this year at European observatories ; and, indeed, I am sure that a greater number of accurate meridian observations are likely to be made during the months of September, Octo- ber, and November than is common. Besides this, it is more than probable that observatories having the requisite instruments will take advantage of the western stationary epoch to make micrometrical measurement*. For the results and success of 1847 it is much to be desired that vw delicate meridian instruments in the southern hemisphere should be brought to co-op- erate with us; and this, perhaps, it is in your power to facilitate. Of equal consequence will be micrometer observations from the same section of the globe ; but as the latter require no permanent observatory, and only a chronometer, a telescope fitted with a micrometer, and a knowledge of the neighboring stars, such observations may well be made by travellers. Whether re will remain time prior to the eastern* period for the necessary instruction of voyagers to the southern hemisphere, I am not able to determine." This letter bears date 17th April, but was not received until the early part of July, and the next eastern stationary term was to occur in September. On conference with the late able astronomer, Prof. 8. C. Walker, he suggested the immediate publication of the letter, as the mode most expeditious of making it generally known, and, in accordance with his advice, printed copies of a translation were forwarded to all the astronomers and observatories of the ited States with as little delay as possible. There was too little time in which to per arrangements for more extended co-operation at that conjunction, and Dr. Gerling was shortly tied that the distribution of his letter was probably all that I should be able to do in the work for 1847. But to prove my interest in the prosecution of the problem to its new solution, I then projtosed an expedition to Chile, to observe the planet near its stationary terms and apportion in 1849, should my views receive encouragement from astronomers to justify such an undertaking. Nearly on the same meridian as Washington is the island of Chiloe, a place of •able trade with the nearer ports, and occasionally visited by American whale-ships. At all > was accessible without much dillicnlty, and I hoped to be able to induce the government to send me there, proposing t<, leave the I'nited States in -time to reach the island by the middle of March of that year at latest. To avoid expense, which it was supposed would ••<• the first and main obstacle, I contemplated only one assistant, who, like myself, would be an officer of the navy, and in the receipt of pay whether abroad or at home, and would take instrument* already belonging to, or under control of the government. I proposed Chil because it was the point farthest south on this continent at which a lengthened winter residence could In -lire without incurring an outlay that might prove a serious impedi- ng and because I thought that a passage to it could be obtained in a whale-ship from one of OF THE EXPEDITION. V our northern ports. It being inhabited by a civilized and most hospitable people, would tend to render a residence of five or six months in the latter part of the autumn and winter not altogether uncomfortable. Its distance is about 5,000 miles due south from Washington; and a comparison of the observations I proposed to make there with those to be obtained at the Washington observatory, would give us a determination of the parallax from data wholly American. This last reason I hoped would benefit me, should it be necessary to seek the inter- position of Congress. On the 9th November following, I wrote Dr. Gerling more at length, telling him : "When I proposed to you, on the 25th July last, an expedition to the island of Chiloe, for the purpose of making, between the stationary terms of Venus in 1849, nearly simultaneous observations with those of the Washington observatory on that planet, and from them to determine the solar parallax more accurately, as pointed out in your letter of lYth April last, my anticipations were limited to the results that a tolerably skilful and well equipped traveller might be expected to contribute to astronomical science, and my chief reliance was intended to have been on differ- ential micrometer observations. Since then I have had leisure to reflect on the importance of the undertaking, and, remembering the vast outlays Europe has encountered in efforts for the faithful solution of this very problem, as well as in other hundreds of scientific enterprises, and the fact that America, which participates so largely in the benefits derived from the labors of astronomers, has hitherto contributed so trifling an amount to the common stock, I am the more keenly sensible of the noble opportunity now within our grasp to present the world, from our own continent as a base, the dimensions of our common system. "I hope my desires may not 'prove father to the thought;' but the more I consider the sub- ject, the more firmly am I impressed with the belief that the able minister who has for a length of time presided with universal approbation over the affairs of the navy will not now falter in interest for its advancement, but will hail the occasion offered, and add a new laurel to the chaplet of its renown, a gem to the national diadem. There is but one perceptible obstacle — pecuniary outlay ; yet when its very inconsiderable amount is contrasted with the grandeur and importance of the object to be attained, I cannot bring myself to believe that this objection will be suffered to weigh, and I therefore repeat the remark made in my former letter — give the proposition the encouragement of scientific men, and I stand pledged for its successful equip- ment. At all events, regarding it as a possible attainment only, two questions present them- selves for consideration, and it is time they were discussed : first, Is the locality proposed (Chiloe) the best which can be selected for the contemplated object? and, second, Will the instruments which have been specified to you permit the accomplishment of that object in the most satisfactory or desirable manner ? "America offers greater advantages to observatories lying on the same or nearly the same meridian than any other country — its greatest length being north and south. Deeming a station on this continent of paramount consequence, for the reason already mentioned, that it may be a contribution from the New to the Old World, as cceteris paribus — the amount of the probable error of the parallax observed will be proportional to the length of the terrestrial base, it is evidently important that the stations from which observations are to be made should be separated as widely as possible. Now, the northern observatories are already established, therefore it becomes desirable that the southern station be made as near to the extremity of the continent as circumstances will justify ; and these circumstances are, climate, accessibility, and iiic.-ins of sustenance for the observers during their residence. " On the first of these points I transcribe somewhat at length the information gathered from various writers on Chile respecting the island named, I now fear too hastily. An islet (Caylin) near its southern shore is called by the natives 'la fin de la cristiandad.' If the name have meaning, as, in the sequel, you will probably have cause to believe, even did the climate per- mit, it would not be possible to establish an observatory farther south than Chiloe, without a special ship to convey and take off the observers and their means of sustenance, because it would ORIGIN AND OPERATIONS be manifestly improper to rely for 8upport during so long a period on the Indians of Patagonia. Meridional I. v, tin- island "t" Campana is letter suited, ami is also some 400 miles farther to the •01: t rhil.V really has the climate deserit>ed liy voyagers and others, you will probably agnv with in.', that even tliis island is t.. > tin south for our purpose, ('apt. King, R. N., having \ one third a tii rain at* St. Martin's cove, near (.'apt- Horn. But to the 'acts from the volumes that I have examined. • padre 1'. In I />iin^ through an entire lunation, and are sometimes accompa- nied b\ hurricanes so furious that one i~ ii"t .-iruie within the house, and the largest trees are up hv the PHI'- ' can the weather be depended on when it is fine, even in sum- mer, for I have frequently expi riemvd as heavy rains and gales as violent in January as in the winter. It is only during the pie.;ilent south wind of summer that fair weather can be hop ;it. Kin-.'. II. N.. in the narrative of the surveying voyage of H. B. M. ships Adventure and Beagle. ;lie following account ; and this is the most recent information accessible, unless I should be able ; iata extending through a longer period fioin the Chilean am- bassador. Says C'apt. King: '(.'apt. Filzroy (commanding the Mca^lc) arrived there (at San lo*) in July, during the latter part of which, and the month of August, the weather was i . with some heavy gales from the northwest ; but in bis meteorological journal for these months there is no record of the thermometer tailing below 38°; and ii is recorded to have fallen to that point only on one occasion, the general height being from 45° to 50°. The first part and middle of September were boisterous and wet; but towards the end of the month the wind was chiefly from the southward, and the weather dry and exceedingly fine. In October it was rather changeable; but for the last ten days, with the exception of one, on which there was a fresh gale, with a heavy fall of rain, it was line and dry, and the winds were moderate. The month of Novemlx-T was generally tine, but the first half of December continued tempestuous and wet. « » * * The greatest quantity of rain in the gauge at the end of the month of i-r did not exceed 2.C, inches. At St. Martin's cove, near Cape Horn, after thirty days • buemition, the rain gauge contained S inches ; so that, although Chiloe bears the character of l*-itiK a \ is not one third so bail as Cape Horn. The time of our visit to Carlos was certainly tin- finest part of the year, and I believe that the weather we expe- rienced »aH unusually dry, even for the season. I do not, however, think that it is by any means so bad as haa been rcpi • 'There in a marked difference of dimat .-» the east and west sides of Chiloe, as to quantity of wind and rain. A portion of both appears to be arrested, as it were, on the wind- »•' 'I"1 heights, so that the neighborhood of Castro, and the islands in the gulf of An- > much finer weather than in met with about San Carlos. i:,,t even hero, the in- habitants say a change has taken place gradually, and they have not now nearly so much rain M they had formerly. They attribute tins to the wood bein- ch-ared away, &c.' "Mr. Darwin, who was naturalist to the expedition, ami accompanied it on board the Beagle, states in his account: -The island is about ninety miles long, with a breadth of rather less OP THE EXPEDITION. Vll than thirty. The land is hilly, but not mountainous, and is everywhere covered hy one dense forest, excepting a few scattered green patches which have been cleared around the thatched cottages. * * * In winter the climate is detestable, and in summer it is only a little bet- ter. I should think that there are no parts of the world, within the temperate regions, where so much rain falls. The winds are very boisterous, and the sky nearly always clouded ; to have a week of fine weather is something wonderful. It is even difficult to get a single glimpse of the cordillera ; during our first visit only one opportunity occurred, and that was before sun- rise, when the volcano of Osorno stood out in bold relief, and it was curious to watch, as the sun rose, the outline gradually fading away in the glare of the eastern sky.' " Don Alonzo dc Ercilla (see American translation of Abbe Molina's History of Chile, page 263) gives this brief, but emphatic opinion, confirming those already quoted : ' The land, like all the other islands, is mountainous, and covered with almost impenetrable forests. The rains are excessive, and only in the autumn do the inhabitants enjoy fifteen or twenty days of fair weather in succession. At any other season, were eight days to pass without rain it would be regarded very singular. The atmosphere, of course, is very humid, and springs are to be found in every part.' ' The account of Chiloe. therefore, is the reverse of flattering ; and as it is more than intimated that the constant rains of this section of Chile are much influenced by the height and contour of the land, and the success of the proposed Expedition will he mainly dependent on the num- ber of complete comparative observations which may be made, it becomes a duty to inquire whether a slight change of locality will afford us an atmosphere less obstructed by rains, at which the observations may be made in such number as will justify the undertaking. Taking up the latter part of this question at once — with great deference to your more experienced judg- ment— it appears to me, that as the great object of the southern station will be to furnish com- parative observations of the planet's declination, and the changes of the declination when near the inferior conjunction are not only about a minimum, but are also sufficiently well known to admit of interpolation for at least one hour before and after the transit at Washington, a movement of the station on the parallel cannot materially affect the accuracy of the results. But this cannot be effected in that latitude, for there is no land to the west, or any roads which are traversable with instruments over the Cordilleras to the east ; and the necessary consequence is, we must take Chiloe as we find it described, and hope for good weather, or move northward to a more suitable place on the continent, which, from the configuration of the shore, must also be somewhat more to the eastward of the meridian of Washington. As has just been said, I do not believe that a degree or two of longitude will be of much consideration, more especially as we have observatories at Philadelphia, West Point, and Cambridge, Mass., whose equipments justify the expectation that they will take part in the observations ; and there is but one to the westward of us at all likely to co-operate, viz : at Hudson, Ohio. " There is universal testimony to the excellence and serenity of the atmosphere of northern Chile ; and to satisfy you of the fact in case you have not examined for yourself, I quote from one or two books in my possession, the volumes of Agiieros, King, &c., having been found at the library of Congress, which has been closed for a week or two past. In the History of Chile by Abbe Molina, which, I believe, has also been translated into your language, at page 12 he says : ' The rainy season on the continent usually commences in April and continues till the last of August. In the northern provinces of Coquimbo and Copiapo it very rarely rains ; in those of the centre it usually rains three or four days in succession, and the pleasant weather continues fifteen or twenty days. In the southern the rains are much more frequent, and often continue for nine or ten days without cessation.' "On page 19 of the same work I find a note extracted from a volume entitled 'History of the European Settlements in America,' which says: 'Contiguous to Peru is situated the province of Chile, which extends in a long and narrow strip upon the coast of the South sea. The air is remarkably clear and serene, and for three quarters of the year this country enjoys an almost ORIGIN AND OPERATIONS constant temperature, an it rains very little during that time.' ISonm-castle. who compiled a rk on America, ban nothing hut what him hem espied 1'roni the above authors; Imt the informal! -n most direct and reeent has been obtained from a small volume entitled ' Kcpcrt Chil.-n... iiiio de !*:;.">, published at Santiago, a city nearly midway between the northern and southern boundaries, and >omc sixty or more miles from the ocean. This was loaned to me by the secretary of the Chilean legation near this government, and whose personal expe- rience enables him to confirm its statements. It is most unfortunate, however, that the .-oroh.gical journal ceases at a period of the year .just hulf way between our interest ing epochs. 1 make a free translation for you from page 1 : ' Chile, from the brightness of its atn the benignity of its climate, ami the fertility and productiveness of its soil, is reputed tt. l«- one of the best and most delightful countries of the globe. Although the four Masons are distinctly marked, the transition from heat to cold is scarcely sensible. Spring begins on the 21st of September, summer in December, autumn in March, and winter on the 21st of June. From the commencement of spring to the middle of autumn, from Copiapii to Talca, the air is perfectly dry, it being very rare that any others than light rains fall in any y> The rainy season sets in regularly about the end of April, and continues until the middle of •emlter. In the province of (.'orjuimbo it only rains two or three times in the year, and then but for a few hours; in that of Aconcagua, Santiago, and Colchagua, two, three, or four consecutive days of rain are followed by twelve, fifteen, or twenty of clear weather, and so on, -Cressively increasing to the extremity of Chiloe, where rain falls all the year, and for entire months at a time. Dew, which is deposited copiously throughout the state during spring, summer, and autumn, measurably supplies the want of rain in the northern section.' " The meteorological journal alluded to as being in the volume was kept at Santiago by Don 1 < Albo, whose records tell as follows: From February 15, 1835, to April 10, of the same . there were four observations daily, viz: at 4 and 10 A. M., and 4 and 12 p. M. During these fifty-five days, there are 146 records 'clear,' 1 ' very clear,' 3 'exceedingly fair,' and 2 'fair;' in all 152, or thirty-eight entire days of fine weather, leaving but seventeen, or one day in three, cloudy. From April 10 to May 12, both days included, there were only 100 records, or three per diem. These were made at times (specified) near 9 A. M., 3 and 11 p. M. 'he 100 notations, f>4, or very nearly two thirds, are 'fair,' and the larger portion of the remainder are either 'cloudy' or ' partially cloudy.' There were only eight rains in the whole thirty-eight days, and this, too, the middle of autumn in central Chile — certainly a state of the atmosphere not known to this part of the globe at the most favored season of the year. . I pray you will not misunderstand my motives for the remarks and quotations respect- ing the clin, 'iile, but remember, there can be no personal preference for a station. .My desire is to contribute the utmost to the solution of the great problem, and to render the most effective service which the locality selected, and the instruments committed to my charge, will permit. If astronomers say, take the longest base and go to Chilo , or even to a more southern station. I will cheerfully acquiesce, and undertake the task with the same alacrity as though the duties were to be rendered at < 'opiapo or Valparaiso ; but it is due to the object to be accom- plished, as well as to myself, to submit these {mints, that I may not hereafter be charged with -.-lection of a station unsuited to observations. Reflect on the subject and advise ine what •hall be don<-. • Fortunately, the second question propounded may be more briefly despatched, viz : Will the instruments named in my former letter permit the accomplishment of the object in the most satisfactory or dcMrablc manner? 1 have already told you, that in writing that letter, my wen- limited to the results ol ' niicrometi ical measurements. But as meridional observation)! of the declination are free from the errors necessarily tending to vitiate thi.se made differentially near the horizon with even n permanently placed parallactic telescope, I am satisfied that the object* of the enterprise can only be properly fulfilled by furnishing it with a lo of not less than thirty inches diameter, whose divisions shall be read with micrometer OP THE EXPEDITION. IX microscopes, and with which, as expressed in your letter of 2d September, ' Declinations; Bestimmungen gemacht werden, welche in Genanigkeit denen von Washington gleich komen.' "We have not such a spare instrument belonging to the navy. One was shown to me a few years ago at Cambridge, Massachusetts, (I think,) and in 1843 Mr. William Simms told me in London he had recently (then) constructed one about that size for the university at Tuscaloosa, in Alabama. One or the other of these may probably be obtained for the Expedition. If they cannot, or are tmsuited to the purpose, either Mr. Simms or one of your German artists could construct one by next July, and I feel confident the Minister of Marine will authorize it should he determine to patronise the enterprise. "I think additional value would be given to certain of the differential micrometer observations, if they could be made at the two observatories with the same stars at the same, pre-appointed, instants ; it being understood that both before and after these instants the greatest number of measurements be made which the condition of the atmosphere will permit. Of course, the circumstances of the refraction at the two stations will be different, but interpolations for changes of declination will be avoided ; and I know, from long experience in the term-day obser- vations of the German magnetical association, how much accuracy one strives to attain, as well in the instants of time as in the coincidence of the observed object with the micrometer wire when he knows there are other observers whose faculties are directed to the same end at the same moments, and whose results are to be competitors. "One other instrument will be found necessary, as well to inspire the observer with confidence in his work, as to afford the means of obtaining satisfactory determinations of the planet's right ascension, which may be used for comparison with the Cape of Good Hope and Paramatta observatories. I mean a good astronomical clock ; for experience has taught me that the rate of chronometers from day to day is not sufficiently uniform to be relied on for work so delicate. Such a clock we already have, and as it is not employed on necessary service, it can doubtless be obtained ; and I take it for granted that the two observatories mentioned will co-operate with us as soon as they know that our station has been selected." A third letter from Dr. Gerling, transmitting the opinions of Gauss, Encke, and Boguslaw- ski, came very shortly afterwards; and on the 24th December he again wrote me, part of which, in reply to my last, is as follows : ' Whilst I promptly acknowledge the importance of yours, and the gratitude with which it inspires me, I candidly confess that the decision you ask of me respecting the proper locality for the observations of 1849 gives an importance to my judgment I would not voluntarily assume ; for it is evident to me that such a decision can only be properly arrived at by yourself and your American friends. Yet, in your own spirit of candor, I will tell you the reflections which would influence me in arriving at such determination. " From the greater length of the base of operations, Chiloe would possess an unquestionable advantage; whilst Valparaiso really appears a preferable station, by reason of its better climate, and not on account of its lying nearly on the parallel of the Cape of Good Hope, as Bogus- lawski, in my opinion, erroneously adduces. I coincide with you fully that a difference of lon- gitude of one or two degrees is altogether unimportant, if other benefits may be obtained by a change ; and the question thus reduces itself to a comparison of the efts-advantage of shortening the base with the advantage of an increase in the number of observations. Now, assuming the latitude of Washington to be 38° 53' north, Chiloe 43° 05' and Valparaiso 33° 02' south, (neglecting differences of longitude,) we have Washington-Chiloe 1.312 radii of the earth, and, on the other hand, Washington-Valparaiso 1.174. Consequently, this shortening of the base will diminish the value of the work in the proportion 1.174 : 1.312 — that is, approximately as 17 : 19. But if by an increase in the number of observations this unfavorable change may be counterbalanced, we have to consider that (ciuteris paribus) the accuracy of the results increases only as the square root of their number. Hence it will be necessary to multiply observations in the proportion of 192 to 172, or 361 : 289, or nearly as 5 : 4. Consequently, Valparaiso will C° X ORIGIN AND OPERATIONS preferable to ChihV. it" it bo probable that five observations of the planet may be obtained at • iw frequently as four can IT made at tin- second station. You will, of course, under- stand nie as moaning Valparaiso only as an example tor your letter, and that the same principle of reasoning must lie a|)]«lien of any neighboring locality. Yet, I repeat, a of this question must rest wholly with you in America, where you, undoubtedly, have at command nearer and more copious sources of information respecting the climate than we. and more particularly tban myself, who have never given thorough attention to suhjeets of this nature. Hut. whatever may be your decision, 1 can hut congratulate myself that by tin- com- munication of my views relating to observations on Venus, 1 may prove the remote cause of so great anil important an enter] • I greatly rejoice that you have reasonable expectation to obtain a good circle for the Expe- dition, to servo you in the declination observations; for I am confident such an instrument will give glorious result*. And that a valuable clock is also probably at command, is a subject of much congratulation. Should you find the opinions of others useful in enabling you to pro- cure these instruments, that of (iaiiss, which was copied into my last letter for you, may pi of considerable weight. •• 1 fully concur with you in the belief that the value of the micrometrical observations will be much increased if they are made at the two stations on the same stars at periods as nearly as possible simultaneous ; and to this end I shall forward to you, at the earliest possible day, a • of stars selected from the Merlin charts. But I do not immediately perceive any great iH-netit likely to accrue from a comparison of the right ascension observations made on the meri- dians of tli- -ive parallels, unless, as intimated, we should succeed in obtaining extra- meridional observations of Venus whilst the sun is above the hoii/on. and finniJtancous measures of the eastern ami western hemispheres maybe combined. Irrespective of the last contingency, I cannot but regard your views directly to the point, and am satislied we should endeavor to make a multitude of observations in the northern and southern hemispheres, if possible, abso- lutely simultaneous. By so doing we shall especially obviate a dilliculty of an important char- acter, but one which did not occur to me until after 1 had despatched my last letter, viz: uncertainty in the time of the determination ; for, as the parallax of Venus when approaching the liori/.oii is expressed by the greatest numbers, so also at that time its variation is the most rapid, and the necessity for accurate knowledge of the instants of observation proportionately greater. The simultaneous observations you propose will certainly remove this disadvantage." Meanwhile, the early letters of Dr. Gerling had, with my own, been submitted to the Ameri- can Philosophical Society and the Academy of Arts and Sciences, to Professors A. D. Bache, jamin IVirce, 8. C. Walker, Elias Loomis, and others eminent for mathematical and astro- nomical attainments, from each of which there was solicited impartial investigation of the method and proposed mode of carrying it into effect, and a recommendation of the Expedition to the favorable consideration of tin- government, should they believe it likely to obtain useful results. Prof. Bachc replied : " As was no doubt expected, the searching examination to which your proposal has given rise has nearly exhausted tin- various bearings of the problem. The importance of the inquiry »Vl --'lly admitted. In discussing the question of the probability of obtaining new data for tin- solar parallax which shall diminish the probable error of the value obtained from the transit of Venus, there ure different shades of opinion expressed. I do not see, however, that the two reason* which strongly favor Dr. Gcrling's method are met by any opposing argu- t«. The large number of observations upon which results may be founded, and the inde- ieiice of the new method with that formerly used. are. indeed, striking features in this ineth.-l. Independent methods give the best continuation < >f results, or show errors beyond the accidental error deduced from calculation of observations which are all made by the same method. ' There can be no doubt that the instruments to be employed should IMJ of the class used in OF THE EXPEDITION. XI observatories, and not small, portable ones. The futility of an attempt with others is well pointed out in the correspondence. The procuring a suitable meridian circle will constitute, I suppose, the greatest expense of the Expedition. Without entirely suitable instruments and ample time for the observations, the Expedition would, of course, fail in accomplishing its main purpose. "As is well pointed out in the correspondence, if the Expedition should result in showing that no new strength could be given by this method to the value of the solar parallax, the indi- rect results from other observations would be ' most valuable ; no similar expedition has ever been barren of scientific results. In this view of the subject, meteorological and magnetical observations should be combined with the astronomical observations. " I have no doubt that you can present a plan to the honorable the Secretary of the Navy so well matured in its details, and so moderate in the expenditures required, that he will give it that favorable consideration which the character of his mind insures to such objects, and that if no untoward circumstances prevent, he will yield the plan so considered that hearty support which he has always extended to similar proposals for elevating the scientific character of our country." On the 18th December, Prof. Peirce informed me : " My long delay in answering your very interesting communications relative to your proposed expedition/ for determining the solar parallax demands a serious apology. I assure you most earnestly that it did not arise from a want of sympathy with the scientific zeal and devotion which have prompted you to this ardu- ous enterprise, nor from a want of appreciation of the importance of a new and more accurate solution of a problem which is the basis of all astronomical measurement, and of which there is now a single isolated determination. I have delayed only that I might give the question a calm, deliberate, and critical examination; and, although fully aware of the little weight which should attach to the opinion of one whose knowledge of practical astronomy is not derived from personal experience, yet, since you have done me the honor of asking it, I have felt that I should doubly err if I should answer without the most careful consideration, and should thus assist in sending a friend and most valuable and highly accomplished officer upon so dreary an expedi- tion with doubtful prospect of success. "A more accurate measurement of the sun's parallax in the method proposed by yourself and Dr. Gerling cannot be regarded as inferior in importance to any problem in practical astronomy ; and when sustained as to its practicability by the opinions of Dr. Bache and Mr. Walker, whose authority upon the use of astronomical instruments can be weighed down by no living testimony, there can be no further question as to its expediency. Most cordially, there- fore, as well as deliberately, I send you my humble testimony in favor of the enterprise you have so much at heart and are so certain to accomplish, if it is, as it appears to be, within the bounds of reasonable possibility. Let me entreat you, however, not to be satisfied with any- thing inferior to the best possible instruments which art can furnish, for such instruments seem to me absolutely indispensable, while the admirable observations which you have pub- lished are a sufficient guaranty for the skill with which you will conduct their manipulation. "I shall bring the subject before the Academy early in the month of January, and shall be greatly disappointed if a resolution is not immediately adopted in approbation of your project." When acknowledging the receipt of this personally complimentary letter, the arguments which had weighed with me to desire such an expedition were detailed somewhat at length. A note accompanied it, suggesting one or two obstacles almost sure to be encountered, and these were replied to at the same time. A part of my letter was as follows: "Kemembering that the solar parallax deduced by various astronomers from the transit of Venus in 1769 was dis- crepant at least 0".4; that, in a climate reputed as favorable as is (northern) Chile, we might expect to obtain observations on at least two out of each three days; that therefore the ninety days during which it is proposed to continue observations will give us sixty determinations of the parallax, each of which might have a probable error of less than 1", and the resulting final ORIGIN AND OPERATIONS >r be Ml" divided by the square root of fil) = 0".13 : ami. lastly, that the attainment of such A solution, if accordant in imiiviiliml r< .suits. would, lit all events, place tin- parallax beyond cavil.it did appear to me an o1 effort t. §ehi0V8 for onr ooubrj and its navy. I am convinced such a result ran lx> attained in a single interior conjunction ; and that I can accomplish it. if a suitable instrument be -riven me. and as close an observer have charge of the northern circle, I am willing to ha/ard whatever of reputation as an observer may have been award' If the period of simultaneous observations is to be extended to another conjunction, the probable error will, of course, fall within 0".l, and such continuation of the •erica appears to IH> t!. -fall who have communicated with me on the subject. .tcrtaining these opinions, the letter of July 'J~> was written to Dr. Gerling, and in a short jHTiod the correctness of my judgment was confirmed by Messrs. Bache, Walker, and Loomia, all gentlemen thoroughly versed in the theory as well as in the manipulation of instru- ments. Thi» was sutlicient incitement to leave no effort untried to secure the honor of the observations for American science. Dr. Gerling's letter of September positively decided mo ; and should he procure recommendations of the Expedition from German astronomers, as therein promised. I shall Ivave nothing undone to the fulfilment of my portion of the engagement. " Between the date of my letter and the receipt of that last alluded to, the subjects of parallax and climate of Chile wire made matters of especial examination. It was not until then that I became acquainted with the close agreement of the results of Encke and Ferrer upon a discus- sion of all the observations of 17fi9, and will candidly confess that this, together with the unfa- vorable accounts gathered of ('hiloc, if not quite so dampening to my zeal as is the (reputed) climate of the Mat ion selected to the skins of Chilotes, was yet very far from a character to alfor-1 encouragement. But, as I hav u tiered minor obstacles to deter me from the pros- •i»n of a worthy task, and the following good reasons exist why the work should go onward, I am prepared to make every promise good to its fullest extent. "First. The solar parallax rests on the isolated deductions from the transit of Venus, as observed in 17C9, a part of which observations arc, demonstrably, forgeries, a part supposed to bave been 'coaxed,' (as generally termed 'cooked,') and another part, viz: at Santa Ana, in it'ornia, made or manufactured by one scarcely rational. Those of Mars at opposition in the last century, which are referred to by Encke in his Venus durcJiyang von 1769, and by Dr. ling in his letter of April 17, 1 have not been able to find here, and, apparently, there is but one other occasion when this method has been made use of. Prof. Henderson made a com- parison of the Cape of Good Hope observations of Mars, at opposition with nearly simultaneous ones at Cambridge, (England.) Greenwich, Edinburg, and Altoiia; and though those made at the first named northern observatory, combined with the ('ape measures, gave a parallax agree- ing very well with the received amount, the comparison with the others afforded a result •ig '.»". These two modes, and the only ones tried, do not rest on a sufficient number of obo- •dvanced state of astronomy demands their confirmation, and the removal of whatever of doubt may hang over the solution of tin- problem. "Second. The method proposed by Dr. Gerling is the only one remaining untried by which we can ever arrive at a know . :ilax; and as this element may be positively ascer- tained during two inferior conjunctions within the limits "of 0".09, its investigation, in the manner matured by him, is not only desirable, but its accomplishment will Ix- alike honorable to the nation that directs and the astronomer who accomplishes it. "Third. Considering the second reason incontrovertible, the magnitude of the object involved renders it well worthy tin- patronage of the government. Now, as wo can hope to enlist our countrymen in scientific enterprises only by their so frequent recurrence as compels belief in their national utility, and as many years have elapsed since voluntary part has been taken in any work »t thin character. i ,-;,/. the Kxploring Expedition, ls:!.1i. unless we wish all interest in like pursuits to be lost, it is time rulers were again called on to act, and the present occasion, ip». emphatically addresses itself to us — there being high honors attainable at little cost. OF THE EXPEDITION. xiii " As they are of much weight, there are collateral reasons which it is proper that I should state to you. On the second page of the preface to his Venus durchgang, Encke says: 'Until 1874, there is no hope of obtaining in this manner (by transits of Venus) a more accurate knowledge of the solar parallax. The celebrated measures for the parallax of Mars, in the middle of the last century, gave that of the sun within the eighth or twelfth part ; but this latter method is of no other practical use than as it encourages a hope that, by a greater per- fection of instruments, we may become more independent of the transits of Venus, which occur so seldom.' And on page 109, he says : " ' The probable error in the observation of a contact being seven seconds, is so great as to ren- der the determination of the sun's parallax within 0".01 almost hopeless for the next two centu- ries. Such precision would have required a hundred observers at Wardhus, and a like number at Otaheite ; whilst the difficulty of placing even thirty good and independent observers in the vicinity of each of the best stations is so great, that it can hardly be expected we shall attain such accuracy from any one transit. " ' All the observations of 1761, together, have but a value equal to three complete observa- tions of the duration at Wardhus, compared with as many at Otaheite. If the weather had been good at the eight northern stations in 1Y69, and there had been eight good observations of the duration at the Friendly islands, these eight comparisons would have been as valuable as the two hundred and fifty observations of the two transits actually made. In comparison with that of 1769, the next two transits will be so unfavorable, that nothing short of perfection in the construction of instruments, and art of observing, can be expected to compensate for it.' "We must, therefore, assent to the present calculated parallax for more than a century and a half longer ; make another essay with Mars, or adopt the plan proposed by Dr. Gerling. Now, does the present state of astronomical science require this trial by us, or will it be advanced thereby? I feel confident that you, and all who reflect on these facts, will agree with me, that to confirm the accepted 8".5776 within 0".09, even should no other astronomical result be derived from it, is well worthy the expedition proposed to southern Chile, and the honor of its achieve- ment not unworthy of American emulation. Moreover, though I need not have reminded you of it, perhaps, should the observations be continued through the stationary terms of Venus in December and January, 1850-'51, as several astronomers regard essential, the intermediate op- position of Mars will occur, which may be made use of with greater probability of success than at the Cape of Good Hope on the previous occasion, it being at that time the summer of the southern hemisphere ; and we shall also be enabled to obtain a parallax in right ascension, as well as in declination. " A few words more directly in reply to the two difficulties suggested ascertain to prove obstacles in attaining ' results comparable in accuracy with the old determinations of the paral- lax from the transit of Venus,' and I shall have done. And first, as to the probable error of absolute declinations from a series of observations. Messrs. Bessel, Struve, Airy, and Arge- lander, are such authorities, it would, apparently, be highly presumptuous to say that any one could make better measures. But did either of those distinguished astronomers ever follow up a star in declination for a year ? I greatly question it, as refers to the Germans, and know (from the Greenwich observations) that Mr. Airy leaves such, indeed ninety-five hundredths of all observations, to his assistants, with whose accuracy I trust I may be permitted to compare, for, if what Mr. Walker says be true, my probable error is less than that of any known ob- server. Enckc admits, page 30 of the volume quoted, that the probable error of observa- tion at a station may be only 0".5. But I propose a form of instrument and method of observa- tion which, united, will necessarily cause many of the ordinary discordances of observation to disappear, and thus your apprehensions on this point be quieted ; that is. I want a circle whose axis shall form a part of its telescope, and intend the nadir point to be examined immediately before and after each series of observations. This construction of the telescope to me presents one, or at most two, disadvantages. The first and most important is, greater instability in the ORIGIN AND OPERATIONS oollimation lino; and the other, ]mrtial loss of light by reflection from tin- prism. As the col- liinating eye-piece and level may be made mutual checks, and theory gives us total reflection from a prism, I am not satisfied that either are valid objections. To counterbalance these, if actual demerit*, the frequent uncertainty as to tin- amount of flexure and its positive source of error, the risk from mounting a tall ladder to examine the nadir point, and of disturbing the instrument when rising after the observation of an object near the zenith, are all in a great measure avoided, whilst the lalxir of the observer is facilitated by having the micrometers next him, and the accomplishment of his task in a uniform position, and that, the most perfectly natural attitude of his body. Should the telescope have a micrometer at its eye-end for both vertical and horizontal measurements, the uncertainty of semi-diameter and the effect of irra- diation will he partially avoided, and a suitable screen can Deconstructed to shield it from solar heat, as well as from that of the person. Are then1 other objections to such construction of the instrument that I do not anticipate, and which would render it improper? "Secondly: I have not so great confidence in the results of micrometrical determinations, except on occasions when, in consequence of the orbit of Venus lying near large stars, we may be enabled to make comparisons by daylight. There will be two such periods at each conjunc- tion— of 1849 and of 1850-'51 ; and if we obtain simultaneous observations from the Cape of Good Hope and Paramatta, as I doubt not we shall, a parallax in right ascension will be measured at the same time. " If the government be pleased to authorize the Expedition, be assured I would not even undertake its equipment without personal consultation with one whose ability and judgment command my admiration as warmly as his personal merits entitle him to my esteem." < in the 7th January, 1848, a committee of the American Philosophical Society, consisting of Profs. R. M. Patterson, R. 8. McCulloh, and E, Otis Kendall, reported as follows: " That the method for determining more accurately the dimensions of the solar system by similar observa- tions of Venus in the northern and southern hemispheres, at the conjunctions of that planet, proposed by Dr. Gerling in his letter to Lieut. Gilliss of April 17, 1847, is in their opinion practicable, and therefore worthy of attention and patronage. Also, that the plan of Lieut. Gilliss for carrying the views of Dr. Gerling into effect is well conceived, and if successfully accomplished, cannot fail to confer honor on our country and its naval service. " They respectfully remind the society that, in the year 1769, observations of the transit of :tis, for the determination of this important astronomical problem, were made by Dr. l!it- tenhouse and others, under the liberal patronage of the government of Pennsylvania, then a British colony, which observations were of great value, and justly reflected much honor upon the colonial government, and particularly upon the distinguished men who were engaged in making them. As the subject is, therefore, one which is already connected with the history of American science, under the auspices of government patronage, as our country has hitherto contributed but little, comparatively with the other principal nations, to astronomy and navi- gation, and as the plan of Lieut. Gilliss is so truly American, your committee suggest that the society should commend it earnestly to the attention and patronage of the Navy Department ; or, if that department .should not possess the legal authority to carry it into effect, to the favor- able action o! -H. And they therefore propose the following resolutions : " RtJtolvetl, That the proposed method of Dr. Gerling, of Marburg, for determining the solar parallax by observations of tin- planet Venus, when stationary and at the conjunctions, and the plan of Lieut. Gilliss for its accomplishment by means of similar observations at the Naval Observatory at Washington and in South America, would, if sin •( •> •ssfully carried out under the direction of the Navy Department, furnish valuable astronomical data, and confer honor upon our con n try. •Iv'l, there/ore, That this society do hereby commend tlio proposed plan to the favor and adoption of the present distinguished head of that department; or, if necessary, to the Con- OF THE EXPEDITION. XV gress of the United States ; and that, in testimony of the opinion of this society upon this sub- ject, an official copy of these proceedings be transmitted to the Secretary of the Navy." The resolutions were adopted unanimously on the same evening, and were transmitted through me. A few days afterwards I received from the Corresponding Secretary, Dr. Asa Gray, the opinion expressed by the American Academy of Arts and Sciences. It is in these words : " Resolved, That, in the opinion of this Academy, the enterprise for determining the solar parallax in the method proposed in the correspondence between Lieut. Gilliss and Dr. Gerling is worthy to be promoted by the government of the United States, by sending an expedition to Chiloe, both on account of the great uncertainty which attends the adopted value of this funda- mental basis of astronomical measurement, and from the probability that this attempt will prove successful, and thus redound to the honor of the country by which it is undertaken. "Resolved, That a copy of this resolution be transmitted by the Corresponding Secretary to Lieut. Gilliss, with a request that he will communicate it to the public authorities who may have the subject under their consideration." These quotations from a document printed by Congress (30th Congress, 1st session) will have shown the origin and initiatory steps leading to the Expedition, and it is scarcely necessary to republish in this place testimony from other correspondents repeating nearly the same argu- ments. Foreign astronomers were far less sanguine of any results likely to set aside the value of the solar parallax adopted from discussion of the transits of Venus ; but the question of col- lateral benefits to science from such enterprise was not mooted by either of them, or, doubtless, they would have been equally strong in its recommendation. So far as my personal support could go, my mind was fully made up. Resolved to give the method of Dr. Gerling a faithful trial, and endeavor to accumulate other data to render the Expedition valuable in case no useful results should be deducible from the observations on Venus, on the 10th February the testimo- nials and correspondence were laid before the honorable Secretary of the Navy. Entreating their careful perusal by him, I proposed : That he should furnish me with instruments already within the control of the department ; one assistant, an officer of the navy; and authority to embark for Valparaiso, or other port in Chile, to make observations there from February, 1849, until April, 1851. Should he be pleased to grant this, I pledged myself that the expenses of every kind, exclusive of instru- ments, should not exceed five thousand dollars. Not only were there influences to prevent its favorable consideration by the department, but it was not until the last day of March that the alternative presented by the American Philo- sophical Society was adopted, and the honorable Secretary referred the matter to the action of Congress. There, the papers were appropriately sent to the Naval Committee, and within a fortnight the Hon. F. P. Stanton, of Tennessee, made the following report : " The Committee on Naval Affairs have had under consideration the correspondence sub- mitted by the Secretary of the Navy, in his letter of the 31st March, 1848, and they beg leave to present the following views of this interesting subject : " It is proposed to set on foot an expedition to the most southern available position on the Western Continent, for the purpose of making observations on the planet Venus, during the period of her retrograde motion, in conjunction with similar observations to be made at the observatory in this city, with a view to the more accurate determination of the solar parallax, which involves not only the distance of our own planet from the sun, but the dimensions of the orbits of all the bodies of the solar system. These observations, if successfully made in the manner proposed, will present data solely American for a new and independent determination of this most important element — an element which enters into all our determinations of longi- tude, affecting the accuracy and safety of all such calculations, and therefore possessed of the highest pocsible utility, not only to the government, but to all the enterprising citizens of our country. In this view the expedition commends itself to us for warm encouragement and effi- \vi ORIGIN AND OPERATIONS • cient aid in its promotion. It has been proposed by one of known zeal, industry, ami ability in astronomical observations, wh ts will not bo wanting to bring it to a suc- cessful issue. •• The plan is one which emanated from Dr. Oerling, of Marburg, well known for his astro- nomical and geodetical labors, ami communicated by him in a letter to Lieut. Gilliss, dated April 17, 1847, in which he earnestly seeks for it the co-operation of American astronomers. It contemplates two aeries of observations, each hearing upon the question of parallax, but in dit- ferent ways, and independently of each other. One series is to be made with meridian instru- ments, at stations as remote from each other in latitude as practicable, and will consist of differential measurements in decimal inn between Venus and the brighter stars near its path, which are visible in the daytime. To render these available in the question of parallax, flic distance K-tween the observatory at Washington and the preposed station at Chile will afford an ample base of 6,000 miles. The other series embraces differential observations out of the meridian, more particularly in right ascension, and which, in cases of the planet's near ap- proach t Mr, can be made with the utmost nicety. A few instances of near approac! some of the brighter stars may be selected, when the two bodies can be followed throughout the day. And. in such case, full series of observations, with a well-mounted equatorial instrument, would be among the most valuable for the proposed object, and their value would be increased bj combinations with others of a similar kind at other and remote stations. " For such observations it is proposed to occupy some point in Chile as an astronomical station. So far as they may be available in the determination of the solar parallax, or even for the con- firmation of previous determinations, they will be of the highest interest. But, apart from this primary object, the expedition and the observations contemplated commend themselves upon other grounds to the warm interest of all astronomers and lovers of science. The perfection of -e observations will require others upon other objects, and the whole will he a just tribute of America and American astronomers to their co-laborers in a science to which our country is largely indebted for the prosperity of some of its most important interests. No such expedition has ever returned without rich fruits, even of different kinds, and gleaned from different fields from those for which it was originally designed. " The fact that a quantity so essential to our accurate knowledge of the solar system as the son's parallax should rest for its determination mainly upon observations of a single phenom- enon— the transit of Venus in 1769 — is sufficiently indicative of the necessity and high value of the proposed measure. So important for this purpose, in the eyes of astronomers, were deemed this transit and the previous hut inferior one of 1761, that we find them scattering themselves over all parts of the habitable globe, wherever the phenomenon could be advantageously ob- served. In 17'''1 they occupied stations from the remotest regions of Siberia to the southern i-mity of Africa, in the wilds of Arabia, and on the islands of the Indian sea. In 1769, with even greater zeal, they scattered over Europe, America, and the South Sea islands, to observe one of the rarest, most interesting, and important phenomena which the annals of astronomical science afford. Not only the learned societies, but the governments of Europe, encouraged and aided the laudable undertaking. And, even in that day, American astrono- mers shared in the labors, and reaped their portion of the honors of the great occasion; yet the zeal of all was not rewarded with success. Unfavorable weather at some of the most important stations either seriously impaired or entirely prevented observations. At others the observa- ' i>ecn regarded with suspicion, or as deserving little conlidence. And the distin- gui who has given the most thorough and scrutinizing discussion of all these obser- although he assigns to his resulting parallax the small probable error of 0".05, yet, near • f his admirable treatises on the subject, remarks that, 'bad the weather been fav 'lie nortl tlOW in 17l'>'.l, and had as many astronomers stationed theniM-lves at different points of the Friendly islands, their sixteen observed durations alone would have afforded a more accurate determination of the parallax than the whole 250 equations OF THE EXPEDITION. Xvil of condition derived from both transits.' But, compared with the transit of 1769, he speaks of the next two transits — those of 1874 and 1882 — as unfavorable for this purpose, presenting 'disadvantages which even the perfected state of instruments will not counterbalance;' and in view of the extremely rare occurrence of these phenomena, and of the unfavorable character of several succeeding ones, he intimates that, for three thousand years the transit of Venus of 1769 may remain as the chief means from which we are to derive our knowledge of the actual dimensions of the solar system. At any rate, it will not be before 1874 that astronomers can avail themselves of a transit of Venus for even an imperfect verification of Encke's parallax; and centuries will elapse before the recurrence of one as favorable for the purpose as that of 1769. But even for the expiration of these twenty-six years the rapid advance of science will not permit them patiently to wait. The progress of astronomy, and the interests of navigation, require an earlier confirmation or re-determination of a quantity so important ; and astronomers will watch with deep interest the accumulation of observations which will bear upon this point, and which, if even less perfect in themselves separately, will yet finally, by their numbers, and the variety of circumstances under which they shall be made, be entitled to weighty considera- tion. "Two methods have been suggested — one by observations on Mars, which has been only par- tially tried, and with but partial success ; the other, the one which it i^ now proposed to attempt, and which offers a decided advantage in the greater proximity of Venus to the earth. It has been proposed to astronomers from a respected and distinguished source. It comes to us re- commended by other names of high authority, and by two learned bodies of our own land — the American Academy of Sciences, and the American Philosophical Society. "But, although the proposed expedition of Lieut. Gilliss is for carrying out chiefly the latter method, it need not, and will not, preclude the other. And the various other observations he will be able to make during the two years he proposes to devote to this work, will furnish a rich and valuable series; for which alone, entirely apart from the consideration of the main design, astronomers and scientific men in other spheres, as appears from the accompanying correspond- ence, have applauded and warmly commended his purpose. " But the main design itself is not without the best prospect of success. The committee are informed by practical astronomers, that, taking for example the proposed meridian observa- tions, with the nicely constructed instruments of the present day, and good observers, 0".7 would be a large estimate of the probable error of each observation. The probable error, then, of the solar parallax, deduced from two such observations at stations as distant as Washington and the proposed position in Chile, will be 0".3 to 0".7, according to the distance at the time of Venus from the earth. And the error of the result, from an accumulated number of such observations, may be rendered very small, provided no constant uneliminated error remains, which will be common to them all. But the liability to such errors can be greatly diminished by the skill of the observers, and their careful attention to all the circumstances which may affect their pro- blem. And this liability to error will be still further diminished by combining the results of the meridian series with those from the extra-meridional observations contemplated, and which will have been made Bunder far different and more variant circumstances. These common errors, the computation of probable error does not include ; and it may be doubted whether the resulting parallax of 1769 is wholly free from the effects of such. Astronomers aim, ever, that their results shall be deduced from observations as extended, made under circumstances as vary- ing, and with means as different as possible. And, in this respect, the determination of the solar parallax, as yet, stands almost alone as the result almost of a single phenomenon. " But the committee do not deem it necessary to enter further into a subject which is so fully discussed in the interesting correspondence attached. They are fully impressed with the im- portance of the object in view ; and as the sum required will not exceed $5,000, they report an amendment to the naval appropriation bill to enable the Secretary to accomplish it. All of which is respectfully submitted." D° \\iii ORIGIN AND OPERATIONS The amendment BO reported was duly sanctioned by both houses of Congress ; and on the 3d of August the President approved a law in which was incorporated a direction to the Secretary of the Navy to expend live thousand dollars, or so much thereof as might be necessary, in making " the observations rec.immeiulcd by the American .Philosophical Society and Academy of ArU and Sciences." Preparatory orders for tlie performance of this service were sent to me shortly afterwards, together with authority to adopt such preliminary measures as I might con- sider expedient. Kvidently, conference with the members of the two societies, whose recom- mendations were made the basis of action by Congress, was an essential ; and I proceeded to Philadelphia and Boston, laying my detailed plan of operations before them, and inviting amendments. I quote it here : " The purpose for which an appropriation was solicited to send out an expedition to the southern hemisphere being the collection of data which shall add to the accuracy of our know- ledge of the solar parallax, observations to this end will, obviously, demand paramount atten- tion. Two distinct phenomena will occur during the period proposed to be devoted to the sub- ject in Chile, by the investigation of each of which, we may reasonably hope to deduce tolerably correct information of the true parallax, and of the absolute value of the received constant. Taking them in the order of their occurrence, they are: • • Kirst. The opposition of the planet Mars, commencing towards the dose (November 17) of 1849. As an ephemeris of the stars proper for comparison with the planet on each day has been selected at the Nautical Almanac office, it should be scrupulously adhered to by the observers at y station. Two classes of observations of this planet may be made advantageously. 1st. Simultaneous extra-meridional measurements at pre-arranged times, [between the observatory in Chile and that at the Cape of Good Hope, the planet to be about three hours past the me- ridian of the latter, and three hours from the meridian of the former station. The time should be reckoned from the meridian of Greenwich, as better known than Washington; and the lon- gitude of the southern station be ascertained with the greatest precision possible in a preliminary investigation. A comparison of these differential measures will afford a parallax in right ascension ; and as in them the differences of right ascension between Mars and the selected stars are wanted, the diaphragm to the micrometer of the telescope should contain at least five ver- tical wires, that it may be used as a transit instrument. Once directed so that both objects will traverse its field, the telescope should remain undisturbed until the time of transit of each has been recorded for every wire. It is doubtful whether an analogous scries can be obtained from the observatory at Paramatta, which lies nearly on the same parallel, because of the planet's great northern declination and proximity to the horizon, when equidistant between the two meridians. But similar series made at the same stations before and after culmination will furnish valuable data, and these may be repeated ad Ulntum.] Differential measures of decli- nation should occupy a portion of each night for combination with others to be made at the northern stations, and it is not doubted that the value of these [also] will be increased if made in both hemispheres at the same instant. 2d. Meridional observations. These being chiefly to determine the parallax in declination, in order to guard against errors which may possibly creep into measurements of absolute zenith distance by fluctuations of the circle zero, caused by handling, it is suggested that the following method be adopted, viz: determine the nadir point of the circle by reflection of the horizontal wires from mercury, immediately prior and subsequent tie passage of the first and last comparison stars over the meridian, and, when practicable, give differential measures with the micrometer screw positive preference over changes of altitude in tli- N-wope. Tin's last may readily be the case when the declinations do not differ more than 2(y, aa frequently offers in the cphemeris for 1849-'60. One limb of Mars should be observed with the fixed horizontal wire, the other with the nearest micrometer wire;, the tran- sits at the I, III, V, and VII wires; and the altitudes, especially, at the II, IV, and VI. The name remarks arc applicable to observations proposed to be made at the opposition of the planet in 1- OF THE EXPEDITION. XIX ' ' Second . Observations of Venus about the times of the inferior conjunctions toith the sun, and more particularly near its stationary terms. The earliest series of which it will be practicable to take advantage will commence in the autumn (spring of Chile) of 1850 ; the latest that I contemplate observing will occur in the summer (winter) of 1852. And thus the results of two returns of each phenomenon will be brought to bear on the problem of parallax. As in the case of Mars, the observations are divisible into two classes — meridional and extra-meridional; though, from the vicinity of the planet to the sun, the results derivable from the latter do -not appear to be regarded with the same degree of confidence. I propose to commence the principal series, and to continue it as long as the horizontal parallax amounts to 15" — that is, about 110 days; and to this end will prepare a map of that portion of the heavens in which the apparent orbit of Venus lies, projecting thereon all stars within 30' of the path which are contained in published catalogues. The map, and a list of stars to be selected from it that will best serve for daily micrometrical comparison, will be sent to every observatory to facilitate the observers' acquaint- ance with the heavens, and insure certainty of comparison with the same star. Similar remarks to those respecting the extra-meridional observations of Mars apply here also ; if any such be found near the orbit, a bright star will serve for simultaneous pre-arranged comparisons during daylight with observatories lying near the same parallel for a parallax in right ascension. Dr. Gerling also advises the comparison of differential extra-meridional/observations made under one meridian, with meridian observations made under another in the opposite hemisphere, the motion of the planet in the intervals of time to be derived from the Nautical Almanac by inter- polation. It is certainly proper that his opinion be received with great deference. 2d. When possible, the meridian measures may and should be made differential at all the observatories, by invariably referring to the nearest bright star as a zero point of the heavens. If this be done, the value of the observations will probably be much enhanced. "As the preceding series will occupy only a portion of the time that it is intended to pass in Chile, there may be various shades of opinion respecting the subjects of investigation most desirable, or most likely to produce valuable scientific fruits, and with which we shall employ ourselves at intermediate intervals; but it will probably be admitted by all, that the following cannot fail to be useful if the observations are successfully made. " 1st.' Meridian observations of the moon, both in declination and right ascension ; the former with a view, more particularly, to the improvement of the constant of lunar parallax, and the latter, in combination with the culminating stars, for the longitude of the station. To verify Burckhardt's semi-diameter, both limbs will be observed whenever practicable, out of and on the meridian, at opposition, and near conjunction. The limited assistance asked for will not permit these observations to be made when the moon passes the meridian later than 1 A. M., except during the oppositions of Mars and western stationary terms of Venus. ' ' 2d. Meridian observations of the smaller planets when they culminate within one hour of any observation previously enumerated, and not later than 1 A. M. "3d. Lunar occultations that occur before 1 A. M., except such as may be visible to the north- ern observatories also. These will be observed whatever the hour. "4th. A catalogue of the stars between the south pole and 30° of south declination to the eighth magnitude, inclusive. I propose to devote at least three hours of every clear night to this work, and to obtain not less than three observations of each star, every zone to embrace as many previously observed stars as possible. The latter will serve as points of reference. It is not intended to rely wholly on these, but to ascertain the nadir point of the circle before and after each series, and clamp the instrument to the altitude of the centre of the belt to be exam- ined, using only the micrometer screw for determining differences of declination. Supposing that a zone of 4(K in declination by three hours in right ascension may be swept every favorable night, if we allow a loss of one third for cloudy weather and overlapping, it will still be pos- sible to sweep the 60° in three years. " 5th. It lias been suggested tha 1much information respecting terrestrial refractions would be XX ORIGIN AND OPERATIONS derivable from a comparison of observations made at observatories in opposite hemispheres -th niul *«>uth) on the circum-zenith stars of each other, each observatory to determine also the absolute places of the same stars. I therefore propose to observe most carefully the declina- tions of • Columbw, ,9 Columba), 6 Centauri and / Scorpii, and the zenith distances of /9 Persei, i . - H.Tcnlis, « Lyric, aud 67 Cygni. •h. Observations of comets. For the reason assigned with reference to observations after 1 A. M., it cannot be expected that we shall devote much time to searches for these bodies, how- ever desirable it might be under the serene atmosphere of Chile. They will, however, be observed whenever discovered in the course of other observations or at periodic returns. ••Ttli. Magnetic observations. On one day of every month — the t<-r>n-e split from the same granite boulder, and dressed and prop- erly boxed at the port from which it is intended to embark the observatory and instruments. '•It is desirable that the whole equipment be despatched under care of the assistant by the 1st of June, 1849, to the port of Concepcion or Valparaiso, from either of which it may be forwarded in a coasting vessel to the point nearest to its final destination. I propose to leave the United States at the same time, cross the isthmus of Panama, and take the steamer which leaves there, monthly, for Valparaiso, where I shall arrive in about forty-five days. This will enable me to examine for the most suitable station between Santiago and Concepcion, and make all necessary arrangements prior to the arrival of the instruments. "There appears to be no dmilit that an inland station will be preferable to one on the coast, because the number of rainy and hazy days is much influenced by the vicinity of the ocean; but it in not possible at this distance to obtain the positive information to justify the selection of a station prior to examination. From all that it has been possible to collect, one of the interior towns on the rivers Mnule or lliobio, just to the eastward of the seventy-second meridian, and south of the thirty-sixth parallel, will most probably be chosen, there being harbors at the mouth of each, and boat navigation which will permit us to transport the equipment with safety and facility. " The ]. Pi—ling programme was first presented to the American Philosophical Society, and by it r nimittee which had made the report already quoted. Subsequently it was OF THE EXPEDITION. XX111 discussed by Professors Benjamin Peirce, Joseph Levering, William C. and Gr. P. Bond, and Lieut. Chas. H. Davis, U. S. N. — a committee appointed by the president of the Academy of Arts and Sciences; and, finally, the two committees met at Philadelphia in joint conference. There being differences of opinion respecting those portions embraced within the [ ], it was mutually agreed to omit them. The remaining portions being fully approved, were recom- mended for the adoption of the honorable Secretary of the Navy; the committee also submitting to him that three assistants should be allowed, instead of only one, as I had proposed. Approved by the department, and the necessary authority granted me to proceed in the premises, Messrs. Pistor & Martins were at once requested to construct a meridian circle, my only stipulations being, that the divided limb should be full thirty-six inches in diameter and read by four micrometers to spaces at least as minute as 1", and that the telescope should have a clear aperture of fifty-one lines. It was suggested, among many other points, that the tube of the telescope should be quite as conical as that of the transit instrument at the Washington observatory ; that there should be two systems of micrometer wires at its eye-end susceptible of illumination on a dark field, as well as in the ordinary mode of being made visible by light- ing the field through the transverse axis ; that the level should be made with a reserve chamber ; and that the counterpoises should be so arranged that it would not be necessary to remove them for reversal of the instrument ; but the weight of metal in the circles, the number of radii, length of transverse axis, diameter of pivots, and all other details not specified, were left entirely to their discretion and judgment. Indeed, except as to the two given dimensions, I desired them to regard all the remainder of the instructions as indications of my wishes, which were not to be considered as positive directions when they conflicted with any better known mode of construc- tion. Subsequently, Mr. Schumacher kindly consented to counsel the artists for me, and they referred to him whenever they sought authority, instead of waiting until letters could cross the ocean, and a reply reach Central Europe. The order was received on the 26th October, during the temporary absence of Mr. Martins, and on the 31st July fr-ilowing a letter was written to me by our accomplished secretary of lega- tion, Theo. S. Fay, Esq., saying : "I have one moment, before we close our despatches, to ac- knowledge your kind favor of the 16th ultimo, and to communicate the excellent news that your beautiful instrument is entirely completed, and stands in a perfection unrivalled. I have just been to see it; and though my opinion of the manner in which Pistor & Martins have executed their task would not be worth much in a scientific point of view, it will go better when backed by that of Encke, who has fallen in love with it, after a careful examination. I must say, if you discover a new sphere in the heavens, the least you can do is to call it 'Pistor & Martins! "for their punctuality has equalled their skill." I will leave the distinguished Berlin astronomer to express his own opinion of the instrument in another place, (Introduction to Vol. 4), but feel it due to these skilled and faithful artists to add here, that the circle ordered differed so greatly in construction and cost from the one they had sent me an estimate for, it was necessary to write for additional authority subsequent to the letter of September 26, and this authority did not reach them until January. Yet, so determined were they to fulfil their pledge, and not disappoint me, that workmen were employed to relieve each other, and, as promised, the instrument progressed to completion within the nine months — day and night ! Would that all were alike punctual ! It will have been perceived that the contemplated form — to place a prism at the centre of the transverse axis, so as to throw the pencil of rays from the object-glass through one of the pivots — was departed from in the order for the circle. This was out of deference to the opinions of American astronomers, who thought it would be a great risk to be wholly dependent on an instrument of untried construction, in a country where it would be difficult, if not impossible, to remedy defects. Eminent artists in Europe thought it would possess extraordinary advan- tages, and the astronomers who wrote to me considered it certainly much more efficient for a single observer than the ordinary one — so much so, that, were they ordering for themselves, they XXIV ORIGIN AND OPERATIONS would assuredly adopt it. The experience of two and a half years in zone observations fully convinced me that the diagonal telescope would have enabled us to do more and far hetter work with iutiiiit.-ly lr-s physical effort, and on another occasion I would not hesitate to have such a transit-circle made. Applications were next made to the observatory, and to Commander Wilkes, U. 8. N., for the other instruments belonging to government named in the preceding pages, and with which it was supposed they could furnish the Expedition, and the five-feet telescope, sidereal clock, chronometers, Fox's deflector, barometers, and thermometers, were at once transferred — Lieut. Maury offering to facilitate our equipment in any manner within his power which might be indicated to him. The first named instrument had long occupied a position subject to the extremes of temperature and moisture, without frequent attention, and careful examination showed it to have been seriously, if not fatally, injured. An annulus of oxidation, more than one and a half inches in diameter, had formed on its object-glass, irremovable unless by repol- ishing — a process which might destroy its figure ; Fox's deflector was probably injured beyond the skill of any one but the original maker; and the declinometer had just been given to a mix. .1 commission of army and navy officers about to embark for duty in California. In this unex- pected dilemma, with nearly one half of the appropriation by Congress already pledged for the circle, (3,400 rix thalers,) and the unavoidable expenditure of quite a thousand dollars more ot it for the observatory, piers, and repairs, I scarcely knew where to turn for relief. Prof. Henry, Secretary of the Smithsonian Institution, had very generously offered to lend me a seismometer, and a complete meteorological outfit, in case the observatory could not supply it, and subse- quently authorized me to purchase, at the expense of the institution, a full set of the portable instruments used in magnetic surveys. Moreover, the department had sanctioned the recom- mendation of the joint committee respecting the number of assistants ; American astronomers thought the five-feet telescope altogether too powerless ; and each day had added to my own solicitude, that every portion of the equipment should be the best of its kind.- The circle would be so; an achromatic telescope, of six and a half inches aperture, parallactically mounted, and driven by clock-work, would be a suitable companion for it ; and should we prove fortunate in inspiring the government and people of the country where we were to be located with a desire to promote astronomy, the two instruments would do honor to a national observatory. But where and how was such an instrument to be obtained? Looking over the programme of organization of the Smithsonian Institution, I found that it proposes — "Also a collection of instruments of research in all branches of experimental science;" and as such an instrument is within the limits of portability, and might be used* in obtaining astronomical data in our own as well as in other countries, I supposed that it would be a most valuable, if not an absolutely necessary accession to the cabinet — one whose possession would enable the Regents to stimulate original researches to the solution of experimental prob- lems. It was therefore suggested to Prof. Henry, that he could render great service to science, if he would obtain one somewhat in anticipation of the time proposed in their programme, and lend it for our use. At that time one half of the income of the institution was applicable to cur- rent expenses; the other half was required to be appropriated for the building in progress, and the amount demanded for the single instrument was a serious obstacle. But that accomplished phyidcist, as well as the members of the Executive Committee of the institution, was greatly interested for the Expedition, and, after much discussion, he notified me that it was deemed of sufficient importance to astronomical science to aid me in the manner requested, provided the telescope could be obtained on a credit of three years, and at a cost not exceeding $2,000, with interest. No importer to whom application was made was willing to order one from Germany on such terms. Messrs. Merz, the successors to Frauenhofer, at first declined Helling without the cash — indeed their ordinary custom is to demand one halt' of the price in advance ; and the only maker in the United States likely to execute properly the mechanical portions of so large • If rr.ri.tni.-i.Hl with n initable range of ndjuitnu>nt of tho polar axil. OP THE EXPEDITION. XXV an instrument refused to accept the order: Just when I had made arrangements to borrow, on my own account, the sum charged by Messrs. Merz, and import an equatorial from them, Prof. Henry authorized me to increase the offer to Mr. Young, of Philadelphia, and eventually a con- tract was concluded with him, on behalf of the Smithsonian Institution — the right being re- served to me to procure the object-glass and micrometer from such artists as might be preferred. About this time, notice was published in Silliman's Journal, by Mr. Kutherford, of the per- formance of an object-glass made from imported materials by Mr. Henry Fitz, an optician at New York. Learning that several other lenses had been perfected by the same artist, I deter- mined to examine them all, and then confer with Messrs. Bache, Peirce, and Walker. To be brief, the examination and conference resulted in an order to Fitz to grind a lens from Guinand's glass, to be of the same diameter (six French inches) as that of the telescope at the High School observatory, in Philadelphia, and to forward it to Prof. Kendall. If he, and other competent and impartial judges, should pronounce it as good, in every respect, as the High School lens, it would be purchased at the Munich price — $500. If inferior, we should have the right to retain and use it, free of cost, until another could be imported from Bavaria. Between the date of the order, November 27, and the time that the tube was ready, April 15, 1849, Mr. Fitz prepared three lenses of that size. Veins developed themselves in one only after it had been polished, and a second proved scarcely less objectionable in its crystallization. Of the third submitted for trial, Prof. Kendall wrote me, May 1 : "I had the pleasure of making trial of the Fitz object-glass last evening, and was highly gratified with the result. I compared it with ours upon the moon, Jupiter, several double stars, and the bright star Vega, with its companion, using a variety of powers, and it is my opinion that Mr. Fitz has fully accomplished all that he undertook to perform. From this trial I am unable to pronounce which is the better glass. The Frauenhofer did nothing which was not as well done by the Fitz glass. There was only one point about which there arose a doubt, viz : color. On first looking at Jupiter, through the new glass, I thought there was rather too much violet about the edge ; but on applying the other object-glass, with the same eye-piece, I could not discover any improvement but that which might justly be attributed to an improved state of the atmosphere. Mr. Fitz, Mr. Longstreth, and Mr. Young, with one or two other competent persons, made a comparison of the two glasses on Sunday evening also. I was not aware of their intention until yesterday morning. Mr. Young was with me last evening, and perfectly coincided with me in what I have said above. I called to see Mr. Longstreth and one of the other gentlemen this morning, and found that each had arrived at the same conclusion as myself in regard to the merits of Mr. Fitz. Indeed, we are all delighted with his success; and I am fully persuaded that between this and one you might order from Merz, the chances would be decidedly in favor of the former." Gratification is a feeble word to express my pleasure at the success of the American optician, for I could not but think this first Yankee telescope of considerable size marked an era in the progress of mechanical science in our country, for which I hoped future astronomers would render due credit to the Expedition. That Mr. Fitz was thoroughly competent to figure and polish, I was fully convinced, on examining the object-glasses previously made, and my only regret was, that he could not forthwith undertake the whole task, and begin by manufacturing lii.H own glass. But he had genius, and nothing would be more likely to stimulate him to undertake it than the success just met with. Thus, through the assistance of others, the Expedition would be most efficiently equipped, and the support of the Smithsonian Institution, at a very trying period, will always be remem- bered with the sincerest gratitude. But this very assistance placed us in a difficult position. The Expedition was national; the mass of means (instruments) furnished to obtain its ends had been by a corporation founded by individual munificence to perpetuate his own name, whilst in- creasing and diffusing knowlege among men. Whose should be the credit of our results ? Wore the observations with one portion of the instruments to be submitted to Congress, and those with the other to the Board of Regents, to be issued as "Smithsonian Contributions?" E'- ORIGIN AND OPERATIONS irly. if t -nment demanded all, and the instruments named in tin- proposition mitted to Congress were unsuited. or had been disposed of ,,n other public service wliilst tin1 Mibjert wns in abeyance, should tlie objects of the Kxpeditimi be worth striving for, as had 8lr, D decided by the national legislature, it was the duty of that honorable body to sup- ply the means bv which success could be obtained, and not permit the funds of a private insti- tution to be trespassed on. There are multitudinous interesting subjects pursued by indivi.l - uals, which can only In- investigated under the patronage of such bodies as the Board of Regents, or learned - and twice the funds at the control of the Smithsonian Institution could be thus expended every year. These were legitimate claimants for its fostering help — ve were not. On representation of the facts to the Naval Committee at the assembling of < 'ongress, the views of the Hon. F. P. Stan ton were sustained, an additional appropriation of $G,400 wrs granted to cover costs of all the instruments ordered, and the Smithsonian Institution was absolved from the responsibility it had so nobly assumed in our behalf. ything was now progressing satisfactorily. Much interest had been manifested tor the Expedition in England, as well as on the continent, and most valuable services were rendered by Admiral Beaufort, Col. Sabine, Capt. (now Rear Admiral) W. IT. Smyth, and others, by their counsel, by obtaining useful materials for us, and by offers to facilitate our objects at all times wherever we might be. So earnest were the desires to do something, that inquiry was made whether the British admiral, or the consuls on the coast of the Pacific, could aid us at any time? These offers were dictated by a principle of generosity noble in the individual, as it was honorable to the nation whose service they adorned, and I could only regret that the ac- knowledgments of the Navy Department for these tokens of good will could not have been communicated to these gentlemen by one whose pen would better have done justice to the senti- ments inspired. But 1 was sure all of them would remember, that education on shipboard, unlike that of a court in the inculcation of well-rounded and elegant, yet meaningless diction, insen- sibly promotes frankness and cordiality — rarely results in insincerity. Therefore, they would appreciate me in a simple expression of profound gratitude, and believe my assurance, that we should at all times esteem it a privilege to render aid to any of the numerous scientific or other parties England so magnanimously sends abroad for the benefit of mankind. I'nderthe direction of Col. Sabine, R. A., the magnetical, and a portion of the meteorologi- cal instruments were rapidly advancing. Prof. Forbes, of Edinburgh, had undertaken to order and supervise the seismometer; Mr. Schumacher and Theodore S. Fay. Esq., wrote encouraging information respecting the meridian circle, and the remaining instruments, to be completed under my own charge, were in such a state of forwardness that our departure need not be de- layed beyond the 1st of June, if a suitable conveyance could be obtained. There remained then »>nly to construct the observatories, select assistants, and prepare a circular stating the plan of operations, and inviting the co-operation of other astronomers. The purchase of a larger telescope rendered modification of the building necessary, and the circular observatory subsequently described in this volume was devised for it in addition to the mgular building previously mentioned. Both were put up in Washington under my own immediate supervision, and when found fully adequate to our wants, each piece was indelibly marked, and the whole taken down and arranged in small packages suitable for transportation. They were constructed with screws instead of nails. The department had detailed Passed Midshipman (now Lieutenant) Archibald MacRae and Henry ('. Hunter, volunteers for the service, as assistants, authorizing me to appoint as cap- tain's clerk Mr. Kdnmnd H. Smith, a young gentleman who had just, graduated at the (Jeorge- town college. As it was desirable that the first two named should obtain knowledge of instru- ments and observations before leaving the United States, they reported to me at Washington, and itenant Maury. the Superintendent of the Observatory, very kindly permitted them to assist there under instruction ,,f the ..dicers on duty in that establishment. At the same time, they were employed to make selections of stars from all published catalogues and Besscl's Zones, OF THE EXPEDITION. XXV11 suitable for the ephemerides of Mars and Venus, reducing the catalogue places to the 1st of Jan- uary of the year for which each ephemeris was prepared. As the apparent orhits crossed sev- eral portions of the heavens in which no stars had previously been observed, at my request, both Lieutenant Maury and Professor Bond, at Cambridge, Mass., caused sweeps to be made, to obtain, if possible, suitable comparing stars. These places, together with those of the planets, were plotted on charts, and lithographed copies were sent with the ephemerides to every obser- vatory. The accompanying circular was as follows : TO THE FRIENDS OF ASTRONOMICAL SCIENCE. In the year 1847 Dr. Gerling, of Marburg, suggested that a new determination of the solar parallax might be obtained by observations upon Venus at and near her stationary periods, provided these observations be made at points far removed from each other. In 1847-8 the American Philosophical Society and the Academy of Arts and Sciences recom- mended to the Secretary of the Navy that an astronomical expedition be sent to Chile, for the purpose of making, according to Dr. Gerling's plan, observations upon Venus, in connexion with the National Observatory at Washington. By an act of Congress, approved August 3, 1848, the Secretary of the Navy was directed to cause these observations to be made. / Being thus authorized by the national legislature, and that nothing which is calculated to impart interest to the undertaking or to give value to its results may be omitted on the part of the American government, I am directed by the Hon. Wm. Ballard Preston, Secretary of the Navy, to announce to the friends of science the objects and plan of the Expedition, and to invite astronomers generally to lend it their co-operation by making, in so far as it may be practi- cable and convenient for them to make, a series of corresponding observations. The Expedition has been fitted out on a scale commensurate with the objects in view. All the means and facilities for it which Congress has placed at the disposal of the Executive have been afforded to it by the Secretary of the Navy. Reposing special trust and confidence in the zeal and ability of Lieut. J. M. Gilliss, U. S. N., he has appointed that officer to the charge of it ; other officers of the navy have been detailed to accompany it as assistants. Passed Mid- shipmen A. MacRae and Henry C. Hunter, who are to accompany it, have been stationed at the National Observatory for the requisite and previous training. The necessary instruments have been procured for the Expedition, and suitable buildings to serve as an observatory in Chile have been prepared in Washington. They are wooden structures, and will be taken to pieces and shipped to Valparaiso in the course of a few days. The principal instruments which the Expedition will carry with it are two telescopes equa- torially mounted, a meridian circle, a clock, and three chronometers. The larger telescope is an eight and a half feet refractor. It has an object-glass by Fitz, of New York, that affords a clear aperture of six inches and a half. It is fitted with clock-work by Wm. Young, of Philadelphia, and by him provided with a micrometer adapted both for dif- ferential measurements and for measurements of angle of position and distance. The other telescope is a five-feet achromatic, by Frauenhofer. It, also, has been equa- torially mounted and fitted with a micrometer by Young, of Philadelphia. The meridian circle is by Pistor & Martins. The object-glass of the telescope has an aper- ture (clear) of four and one third inches, with a focal length of six feet. The circles are thirty- six inches diameter, minutely divided, and provided each with two reading microscopes. The series of astronomical observations, in which the co-operation of other observers is more especially invited, will consist of differential measurements during certain portions of the years 1849, '50, '51, and '52 upon Venus and Mars, with certain stars along their paths. The observations upon Venus which will most command the attention of the Expedition, will be differential measurements upon that planet in the morning and evening while it is near the inferior conjunctions of 1850 and 1852. JUCV111 ORKIIN AND OPERATIONS In like nmni! M - will )><• compared witli its neighboring stars nonr the tinu •* "I tii'D (if that planet in IS-l'.i and 1S.VJ. The object of these observation* upon tliis planet is ;i more accurate determination of its parallax. To facilitate the observations, and to secure concert of action, so that the co-operators, in whatever part of the world, may, in observing the planets, always use the same stars of com- parison. Lieut. (Jilliss has prepared the accompanying charts and tables : Charts Noe. 1 to 5, inclusive, refer to Venus ; 6 and 7 to Mars. They show the approximate places of the planets from day to day relatively to the stars down to the tenth magnitude near their paths. In some parts of the paths of the planets, along which published catalogues do not afford proper stars of comparison, special observations have been made with the large refractor of the National Observatory; the stars whose approximate places have been thus obtained are mapped down along the planet's path. Tables 1 and 2 contain the ephemeris of the planets and stars of comparison. They give the star of comparison for each day, and quote its magnitude, with its approximate mean place only. The stars marked W. C. are from the unpublished observations of the Washington cata- logue ; as they have not undergone their final reductions, their declinations are only given to the nearest 10". The other stars are designated by the initials or name of the catalogue from which they are taken. In the ephemerides of the two planets and their neighboring stars, the mean places of the stars for 1st January of the year for which the ephemeridea are calculated, are given. The object of such ephemeris is to give the place of the star with accuracy sufficient merely to leave no doubt as to the identity of the particular star which all observers are requested to use during the day thereby provided for. • It is requested that those who may have the goodness to co-operate in these observations will observe the planets also, both for right ascension and declination at their meridian passage. The order of observations proposed by Lieut. Gilliss is this : During the term of the epheme- ris of Mars, differential measurements upon that planet and the star of comparison for the day will be commenced at two hours after the passage of the planet across the meridian of Green- wich, and be continued for one hour and a half after the star and planet shall have passed the meridian of Washington, observing and comparing with the star the north and south limbs of the planet alternately. Both the planet and its star of comparison will also be observed, with the meridian circle, at their transits across the meridian of the observatory in Chile. The sain is proposed to be pursued at meridian transit with regard to Venus and her stars of comparison. Lieut, f Jilliss proposes to commence the differential observations upon Venus and her star of comparison as given in the cphemeris as early in the evening and morning, and to continue them as long, as the light of the sun and the conditions of the atmosphere may admit. Owing to the absence of stars of sufficient magnitude within 15° of the sun,, an omission is made in the ••phi-nieris during the time that the planet will be within that distance of the sun. It is pro- posed during such intervals to rely exclusively on meridian observations, both at the observa- tory in Chili- and elsewhere. Tin- precis, • plaee at which the observatory is to be erected will not be decided upon until the arrival there of the Expedition. Tim-- a-tionomcrs who are disposed to forward the objects of the Expedition so far as to co-operate with it in conducting an auxiliary series of observations, will perceive that the results of their bilM.ru will IK; enhanced by using, whenever practicable, the stars of comparison which i' <;iHi«* h.i d, and which are given in tables 1 and 2, and by following generally the plan of obwrvationx |.n.p,,scd by him, and herein explained. OF THE EXPEDITION. Each co-laborer is requested to send annually to the Superintendent of the National Observa- tory at Washington his observations, with an account of the instruments with which they were made, together with such other information in relation thereto as is necessary to a full under- standing and appreciation of them, and the results arising therefrom. M. F. MAURY, Lieut. U. S. Navy. JUNE, 1849. In June, the observatories and all the instruments, except the meridian circle, were shipped at Baltimore on board the "Louis Philippe," bound round Cape Horn, and the vessel being ready for sea, the assistants embarked on the llth of the following month. I hoped to reach Valpa- raiso before them, and supposing that no detention would be experienced on the more expedi- tious route across the isthmus of Panama, none of the portable instruments were reserved except an aneroid barometer and one thermometer. As it resulted, the magnetical instruments would have been an instructive and interesting source of occupation during the weary month passed in that most irksome of all cities on the globe — Panama. But I am anticipating. On the day following the departure of the assistants, the department was notified of the fact, and advised that there would be nothing to delay my departure beyond the date at which the next steamer would leave for Chagres. And three weeks later the 'following instructions were received : NAVY DEPARTMENT, August 6, 1849. SIR: Your letter of the 12th ultimo, informing -the department that the instruments and other portions of the equipment essential to the observations to be made under the act of Con- gress approved August 3, 1848, have been shipped for Chile under charge of the assistants, and that nothing need now delay your departure, has been received. You will be pleased to embark by the earliest opportunity, and proceed to Santiago in Chile, via the isthmus of Panama, and the line of steamers from thence to Valparaiso. On your arrival, you will make known to the consul of the United States there, or other accredited agent of the United States, the object of the Expedition, and request him to make the proper repre- sentation to the Chilean government, with a view to obtain the necessary permission to occupy suitable sites for the observations. The object of the Expedition, as set forth in the act referred to, is to cause "the observations to be made which have been recently recommended (to the department) by the American Philosophical Society and the Academy of Arts and Sciences," of which you have been apprized. After obtaining the necessary permission of the Chilean government, you will select such sites as may be, in your judgment, necessary for effecting and completing the observations contemplated, and proceed without delay to accomplish the object. For the pay of yourself and party whilst in Chile, Messrs. Baring Brothers & Co., of Lon- don, have been instructed to honor your drafts. You will keep an exact account of all your receipts and expenditures of public money, taking regular vouchers for all expenditures, send- ing your accounts quarterly to the Fourth Auditor for adjustment. The unexpended balance of the appropriations amounts to $4,159 51, which will be placed in your hands, and charged to you on the books of the Treasury Department. The department entertains the fullest confidence, that in your ability, zeal and energy, the honorable duty assigned to you will redound to the advance of science, and of the honor of your country and of yourself. You will be pleased, from time to time, as opportunities offer, to inform the department of the progress made, and to furnish any other information of a useful character. Wishing you success, and the safe return of yourself and party, I am, respectfully, your obedient servant, WM. BALLARD PRESTON. Lieut. J. M. GIIJJSS, U. S. Navy, Washington. \ \ \ ORIGIN AND OPERATIONS As the two series of observations for parallax — the specific object which had been the of tin- K.\|«-«lition — would K- valuable only when there were corresponding -.Wi-vat'iims in tin- two hemispheres, and tin- CO-Operation of other observatories would be matters of 1'avur, not lit, in order to insnn- tin- impartial trial of l»r. (Jerling's method, under date of August 11, Lieut. Maury was instructed l>y the honorable Secretary, that — "A* the success of the Astronomical Expedition to Chile, under the direction of Lieut. <;illiss, will greatly depend on the care with which the corresponding observations are made in the northern hemisphere, you will designate an assistant whose especial duty it shall be to make the observations at the times and in the manner specified in the • Circular to the Friends of Science,' which you prepared under the direction of this department." At the same time authority was granted me to dispose of the equipment at the completion of our service, in such manner as would be best for the public interest, and in case of continued illness, or other disability of either of the assistants, the commanding officers of the I'uited States ships touching at Valparaiso were authorized to give me any volunteer officer in ex- change. The duties required would be confining and trying, our probable place of abode somewhat expensive, and I was unwilling to obtain the services of any officer who would be able to reproach me for having taken him from the less arduous and more economical routine on shipboard. K very effort was made to obtain at least one additional assistant from the de- partment, viz : the number that had been recommended by the societies. There were two young officers who were earnestly desirous to accompany us, one of whom, when the honorable Secretary objected on account of the small remainder of the appropriation, volunteered to bear his own travelling expenses, but the Secretary was inexorable. The first steamer to leave was the "Empire City," at New York, advertised for 16th of Au- gust. It was to be her second voyage, and the agents assured me that she would make the run to Chagres in eight or eight and a half days. Had this been accomplished, there would haYe been ample time to cross the isthmus by noon of the 27th ; but we were eleven and a third days in making the voyage, and in consequence, the steamer for the south Pacific had left Panama before we anchored at Chagres. Nevertheless, supposing that repairs or other casualty might have caused her detention, no time was lost in landing, and by midnight I was ascending the river Chagres in a canoe urged by four athletic natives. A delay of six hours, caused by a flood in the stream, prevented our reaching the city until forty-eight hours after leaving the " Empire City," when it was learned that speed had been of no avail ; the British mail steamer had departed at her appointed time, and there was before me the certainty of. passing the en- suing month on the isthmus. How the time was passed, has been narrated in Vol. 1. Nor need I repeat here more than the fact, that the southern terminus of my sea voyage, Valpa- raiso, was reached on the 25th of October. At that time the steamers of this line left each extremity only once per month ; and as they landed passengers, mails, and freight at thirteen ports within the 3,100 miles of navigation, and delayed at one of them, Callao, no less than five days, the voyage occupied four weeks. By omitting the two ports in Ecuador — Buenaven- tura and Guyaquil — and Huanchaco and Casma, in Peru, and remaining only three days at Callao, it is now reduced to eighteen days. But if custom-house officials would grant necessary facilities, and not detain vessels all night when they chance to arrive after sunset, the new steamers would easily make the voyage in fifteen days. There is now a semi-monthly line; and so pacific arc the winds and waves of that broad ocean, that the arrival of a steamer from a coasting voyage of a thousand miles may be calculated ijuite surely within a few hours. Beaching Valparaiso bay late in the afternoon, a glance satistieil me that the "Louis Philippe" was not among the shipping in the port. Nor had the consignees any intelligence of her; but as she might l>e expected to arrive at any hour, no time was to be lost in preparatory measures. \Vhil.-t the consul, our highest representative functionary in the country at that time, was pre- paring for me a letter to the Minister for Foreign Affairs, all necessary information was obtained of the climate on the coast, and soon after night-fall I was en route for the capital. Besides OF THE EXPEDITION. XXXI the orders from the Navy Department, I had brought a despatch to the former gentleman from the honorable Secretary of State, who also made known the objects of the Expedition ; and in consequence, the consul placed me in direct intercourse with his excellency the Minister, as the most expeditious mode of perfecting the necessary arrangements. By travelling all night, I was at Santiago near noon of the next day. On presenting my letters, the government received me cordially, and acted promptly and with commendable lib- erality on every point, by offers to place at my control any unoccupied public ground, to admit free of customs dues everything belonging to the' officers of the Expedition, as well as its equip- ment, and to promote or facilitate its objects in every other manner which might be indicated. Indeed, the good will and liberality of the President and his Cabinet then, and throughout our stay in the country, were uniformly manifested. As one evidence of their desire to serve us, the Minister of War offered to station a guard at the observatory to protect the instruments from malicious injury, and ourselves from possible annoyance, requesting that notice might be sent to him as soon as the instruments were conveyed to the buildings. Unwilling to incur so great an obligation when there was no apparent necessity for it, the offer continued tacitly declined. Message after message came from the Colonel of Artillery, notifying me that he had orders to send a guard, and he awaited expression of our wishes — until, finding no reply was obtainable, but — " I will advise you when it becomes necessary," he sent a corpetral with instructions to re- port to me. To have ordered the subordinate and his men back to the cuartel would have been a rude return for an act of evident kindness, and, consequently, a sentinel stood beside the obser- vatory door summer and winter. As a patron of science, in stability of government and stead- ily progressive prosperity, Chile is far in advance of every other nation of South America. A very brief investigation sufficed to satisfy me that no other part of the country would answer our purposes so well. In arriving at this conclusion, three conditions were weighed : 1st. Resources in case of accidental injury to instruments. 2d. Increased value of observations from the most southern station possible ; and 3d. The atmosphere which would permit the greatest number of observations. The first was paramount, and as persons capable of making repairs could be found only at Santiago and Valparaiso, the advantage of a station nearer to the pole was thrown out of the question. Nor did decision between these two places require longer examination. Apart from the fact that the former city better satisfies the second condition, the climate of the coast is subject to frequent fogs and mists, from which the great plain is almost wholly exempt. Santiago, therefore, was chosen, much, I believe, to the gratification of the government. This city, with a population of 90,000 souls, is situated on an elevated plain or basin, between ranges of mountains, in south latitude 33° 26' 25". 9; approximate longitude west of Greenwich, 4h. 42m. 33. 6s. The plain, or, more properly speaking, the succession of basins, on one of which it stands, commences about latitude 33° south, and with slight interruption, near the par- allel of 34 J°, extends to the Gulf of Ancud, in latitude 41£°. It varies in breadth from twelve to forty miles, and has a constant and quite uniform declivity from north to south. At San- tiago the height is 1,830 feet above the sea; opposite Chiloe the plain slopes to the ocean level. The base of the nearest longitudinal range of the Andes is nine miles distant from the capital; that of the Cordilleras to the west, not less than sixteen miles — the former attaining a height of 9,000, and the latter about 3,000 feet above the plain. One spur to the northeast, which is nearly 1,000 feet high, approaches the very skirts of the city ; portions of the great Andine chain, less than thirty miles distant in an air-line, rise to 18,000 and 20, 000 feet; and Tupun- gato to the east, and Aconcagua to the N.N.E., the loftiest known summits of America, are each more than 22,000 feet above the sea. Interrupting the eastern horizon, as does this giant Cordillera, its interference with observations on the planet Venus in the morning twilight ren- dered so near an approach to it objectionable ; but there was no locality in the vicinity of a proper residence free from the same obstacle, and no town in the interior that offered the facili- ties possessed by the capital. . il ORIGIN AND OPERATIONS Three localities there from which to select were offered me by government, viz : a part of tin- plain just without the southern suburbs; Cerro Blanco, a granitic knoll some 400 feet high. within the northern bouiulary ; and Suiitu Lucia, a small mass of porphyry, in tin- eastern quarter of the city. The first is half submerged during the rainy season, and consequently, at such times, is almost inaccessible by pedestrians. It was without suitable accommodations near enough for our party. The second also would have rendered the erection of a dwelling indis|K.'H8ahle. Above the castles that occupy artificial terraces halfway up its northern and southern slopes, Santa Lucia was but a pile of rugged rocks. But as government proposed to construct a suit- able path to the vicinity of the summit, to level as much space there as might he required, and to furnish a room in the castle, should it be needed, serious obstacles to its selection were re- moved, and their liberal propositions respecting it were accepted. It was not until months afterwards, and when too late — when the noises and dust of the streets became serious annoy- ances— that it was ascertained how much better positions there are in Yungai — the western suburb. But, even then, one fact reconciled me to Santa Lucia. There, when had weather pre- vented observations, as the assistants were surrounded by the best society, interludes of social visiting probably prevented the discontent which would have generated under arduous work in the isolation of Yungai. On the very day that every preliminary had been finally arranged with the government, information came that the " Louis Philippe" had safely arrived at Valparaiso. Repairing there at once, within three days the observatories and instruments, packed in and on six of the huge ox-carts of the country, were on their way to Santiago. The distance from Valparaiso by the road is eighty-four miles ; and as there are two ranges of mountains to cross, a journey in the summer ordinarily occupies loaded carts five days ; so that it was the 9th of November when our train halted at the foot of Santa Lucia. The chronometers, barometers, and other delicate in- struments, were packed on springs before leaving the United States, but, for greater security, they were suspended from the roof of one cart, with controlling cords at the bottom of each box, to prevent too great lateral motion. Having witnessed their departure, under charge of a care- ful cajmtaz,* for the purpose of estimating the probable security of this mode of conveyance, by inspection of the train on the road, Lieut. MacKae and myself remained a day behind, and we were the last to proceed to the scene of our future labors. Santa Lucia is a solid mass of rock. Its horizontal projection is an oval, some 1,300 feet long from N.N.K. to S.8.W., and 500 feet in its greatest transverse diameter. Its highest pinnacles, 200 feet above the city, as well as many others, are columnar, and, at a little distance, closely resemble basalt. Some of them are vertical — a few are horizontal ; most of them, as do also its strata, stand at every inclination towards the west, but not one of them dips to the east. The slope is tolerably regular from the summit to the north and south extremes, though that of the southern portion is the most abrupt and broken. Partially covered with decomposed rock and scanty vegetable mould, its eastern face has an inclination not differing greatly from 45°. The western is precipitous — a bare wall of nearly black porphyry, with occasional injected veins of quartz. This nide forms the great quarry from which the city is supplied. On its northern ridge, houses have been built as far up as the base of a castle, to which a tolerably good wind- ing road has been formed on artiticial terraces cut in the eastern slope; but above the castle, that is, for two thirds of the whole height, the rocks rise vertically for nearly twenty feet, and further ascent towards the summit was (then) only to be accomplished by clambering from point to point. The most appropriate places we could obtain were just below the summit, on the same ridge, and a large number of men were at once set to work to level them. This was no iiic-Miiidfialile undertaking. Surrounded, as is the hill, by many of the best dwellings of the capital, blasting is prohibited, and the process of breaking down rocks by heating and pouring water on their hot surfaces is a,very slow one. The intervention of feast days, when labor is • The perwo ID charge of • (rain of cart*, mulei, or the vehicle iu which one travel*, ii to called. OF THE EXPBDITION. XXXU1 prohibited by the church, proved another source of delay ; and it was not until December 5 that the first building was ready for its instrument. The terrace on which this stood is eight feet higher than that of the rectangular edifice for the meridian circle, and 115 feet above the run- ning stream at the base of the hill. It commands an unobstructed view, except between S.S.W. and S.S.E., where rocky escarpments interfere for about 15° above the horizon. On the following night the equatorial was mounted, and four days later, work was com- menced with it on the planet Mars. During that season the weather was exceedingly favora- ble for observations. Of the fifty-two pre-appointed nights remaining of the series, there were only four when no observations could be made, and two others when a slight haze obscured the very minute comparing star in the illuminated telescope. Such continuous loss of rest, added to change from the moist climate of the ocean to the excessively dry one of Santiago, was so rapidly breaking down Lieut. MacRae, that, on the 18th December, I was glad to take advan- tage of the arrival of the meridian circle, and send him to Valparaiso to supervise its landing and packing for transportation. After the equatorial was mounted, three or four weeks were consumed in putting together the other building — a time quite as long as was occupied in its original construction. Mean- while we had obtained permanent quarters in the vicinity ; the circle and clock piers were put up, and our magnetical and meteorological observations had been Systematically commenced. Early in February the circle was ready for use ; the first series on Mars had terminated, and zone observations were instituted, commencing at 85° south declination, and working towards the zenith on successive nights in belts 24' wide, until compelled to return below again to con- nect in right ascension. Each night's work comprised observations of level, nadir point, col- limation by reflection of the wires from mercury and standard stars before and after a zone extending through three to four hours in right ascension, so that we were always occupied from five to six, and sometimes more hours. Lieut. MacRae and myself devoted alternate nights to these observations, very rarely having relief by clouds until after April 21st. Indeed, between February 4th and that date — seventy-six nights — there were only four of them obscure. The rains of latter autumn and winter came none too soon for us. Appreciating the advantages that mental culture gives to every individual, community, or nation, the government was early in manifesting a disposition to have its citizens profit by our residence among them. The minister at Washington had inquired whether it would be agree- able to facilitate the studies of some of their most advanced young men, and very shortly after the instruments were erected the application was renewed through the University. Earnestly hoping to increase the interest in our pursuits, the proposition was cordially assented to, and three gentlemen were appointed by the Minister of Public Instruction, who were paid a mod- erate income whilst devoting certain hours to the study of theoretical and practical astronomy. One was a professor of mathematics in the National Institute ; the others prominent students of his class. Our books were at once placed at their disposal ; explanations were given them at all times ; opportunities afforded them to become familiar with the meridian circle, and the smaller equatorial was loaned for their exclusive use. This instrument was mounted by them under a movable building within the castle yard, to which they had access without interfering with our regular work. These gentlemen readily aided us in the magnetical and meteorological obser- vations, and also on the term-days, or whenever sickness diminished the small number of our active party. For assistance at such times they merited our best thanks. Nor was it the gov- ernment only who were interested that astronomical knowledge should be cultivated in Chile. When the equatorial was first mounted, night after night, scores of persons ascended the hill to see the wonderful "maquina," as they called the beautifully equipoised but apparently complex instrument ; and as the observations on Mars did not commence until an hour or two after dark, the intermediate time waS devoted to showing them some of the wonders of the heavens. All who came were admitted — men, women, and children, rich and poor ; even the sentinel who stood with sabre beside the door was not slighted ; and each in turn went away gratified, the fo XXX iv OHIO IN A HO OPERATIONS poor deferentially waiting until their more fortunate countrymen gave place within the lniild- ing. Few at a time coultl enter; and irksome as it was to repeat the same explanations to half a dozen or more parti.s ( MTV evening during nearly three months, we cheerfully PLTM-VCP 1. and perhaps with good effect. We had been told hy acquaintances that the lower classes living on and near the base of the hill were men of vicious propensities, whom it would bo hazardous to meet unarmed at a late hmir of the night; but, to their credit be it said, we were never molested, even by a word, in the nearly three years during which we went up to and left the observatory at all hours. May not our civility, when they came desiring to see the telescope and the curious objects it displayed, have secured their good will? But the custom of opening the observatory to visitors gave rise to a report that we had come to Chile as expounders of astronomy. Our arrival and purposes had been duly published ; but in a country where there are so few journals and so limited a circle of readers our position was not readily comprehended. Without exception, the foreigners who had previously settled among them came t<> ummmlute, not to spend money, and the mass reasonably supposed we had a like object. Perhaps this con- tributed to make credible among large numbers that an astronomical class was to be formed, admission to which was earnestly sought by many of our evening visiters. Passed Midshipman Hunter, injured by being thrown from a horse early in January, returned to the United States by the first public vessel, and in September following the vacancy was filled by Mr. S. L. Phelps, who took my place at the circle. All the subsequent zone observa- tions were made by Lieut. MacRae and himself. In January, 1851, an accident to the micro- meter-screw that moves its horizontal system, of wires, made it necessary for the assistants to work jointly at the zones, and, as it was manifestly impossible for them to be up every night, as soon as the first series on Venus terminated, I devoted the alternate nights with the circle to examination of such of Lacaille's stars between our zenith and pole as had never been twice observed. Messrs. Pistor & Martins, however, sent us new screws with the least possible d"elay, and at the close of June we could work as before.* • Most of the several hundred errors which were detected in these months of examination, and subsequently, have already been announced in the pages of the "Astronomical Journal" and the "Monthly Notices of the Royal Astronomical Society." From June to October, in which last month the series on Venus commenced, the weather proved more unfavorable for observations than in any year since that of 1827 — so said intelli- gent citizens — and there were only one third of the nights suitable for zone work ; but we were able to observe the moon and stars selected from published catalogues, quite one half the time. Between October 19 and February 10, 1851, differential measures of the planet and comparing star were made on fifty-one nights ; and there were seventy-three meridian observations, at which time its diameter also was measured, and the absolute places of several standard stars observed, one or more of which occupied nearly the same parallel of declination. Owing to its very frequent tremulous or pulsatory motion in the evening twilight, the differential measures when approaching its eastern stationary terms were often found difficult, and rarely afforded much satisfaction. As example to the contrary, however, the following remarks on one evening may be quoted to show that reliable measures are not impossible : " November 14. An extremely fine evening throughout. Both objects are defined with pre- cision and move steadily. Except those marked 'tremulous' (1) and 'blurred,' (3) it would not have been possible for me to make better measures with so little difference between the times of transit, and so large an angle through which to move the micrometer screw." re were twenty-seven measurements made between 22/t. 58m. and Oh. 18m. sidereal time, the difference of right ascension at the first being 50s., and at the last 44.4s., and of declination at corresponding periods 1' 50" and 2' 12". But in the morning twilight the atmosphere was lhe»e distinguiihrd ani.t. merited earneit com mendation. u well for the jfromptitude with which they delivered these delirdr portion* of thf iiutriiiitriit to b.- forwarded to IM by mail, n» for their di»mterr*tediic«« in declining to make any charge OF THE EXPEDITION. XXXV tranquil, and generally so clear that measures could be continued long after daylight if the comparing star was so bright as seventh magnitude. Once I commenced when the planet was not more than 3° above the horizon, and, as has been stated in Vol. 1, there were several occasions when the cusps could be distinguished by the unassisted eye ! Its twinkling some mornings was also quite notable ; both the latter being facts in physical astronomy, or rather atmo- spheric astronomy, never yet witnessed from any observatory in the northern hemisphere known - to me. But, favorably as the planet could be seen, and carefully as colored portions were looked for on several occasions, nothing like a spot was ever detected. The meridian observations were prosecuted except whilst the planet was within 5° of the sun, a screen of white cotton cloth completely protecting the circle from the sun's rays. When the circle was again in thorough working order, I made a visit to the northern pro- vinces, taking along the magnetical instruments, and determining the elements at five stations, one of them 3,700 feet above the level of the sea. This journey also afforded opportunity to collect many facts respecting the mineral resources and distribution of mines in those provinces, as well as other interesting information not generally known out of Chile. During the month and a half of my absence from Santiago, there was very little work done by the assistants. Clouds had been even more frequent than in the corresponding period of the. preceding year, though rains had neither occurred so often nor continued so long. / Autumn proved almost as unfavorable for the zones ; so that from the commencement of summer to the close of this season, we averaged, for the catalogue, only a little more than 800 stars per month. July of 1851 was, undoubtedly, the mostunpropitious month of our residence in Chile. During the second series on Mars, comprising 93 days, between 16th December, 1851, and 15th March, 1852, I was more fortunate. About 2,000 differential measures were made on seventy-eight, and meridian observations on eighty nights, it having occurred on two occasions that the comparing star could not be seen through the haze hanging over the valley. Generally the atmosphere was so clear that the shades of color of portions of the planet could be perceived with great distinctness and satisfaction, even under quite bright illumination of the field. The following notes appended to the observations of February 26, will show some- thing of the appreciation in which such nights are held. On that night the star of comparison was double; its companion, blue and of the twelfth magnitude, was some 19" south and 6" east. "Neither finer night, better images, nor more satisfactory work, since the commencement of the series. The atmosphere is as steady as the earth itself, and so translucent, that not only is the companion seen distinctly under full illumination, but even its blue color is perceptible." There were twenty-four measures on that evening, and I am quite sure the place of the planet will be given by them to within less than half a second of arc. In marked contrast are these notes to the observations on the evening of the 1st February. " There were two sharp earthquakes, at an interval of 12s. , about &h. 12m. p. M., (nearly twelve hours before,) whose effect seems to have been to change the condition of the atmosphere. At one instant the planet and star are steady, but before half-way across the field are blurred and jumping in a most extraordinary manner. Therefore, the measures could not have been very good, even had there not been the additional difficulty of endeavoring to keep Mars on the fixed wire by means of the tangent screw, whilst the micrometer wire was moved to bisect the star. Thus, only one reading of the micrometer is given, the star being that number of revolutions to the north of the planet's limb." Unfavorable as this appears to be, if we divide the thirty observations into four groups for comparison, the change of declination between the mean of the times for the two groups of the north limb differs from the change shown by the south 0".234. Should other observatories have been equally fortunate, a discussion of the observations cannot fail to be of high interest, for it will probably forever decide the possibility of determining accurately the parallax of Mars from meridian or differential measurements. At the close of the series, at least three meridian ORIGIN AND OPERATIONS observation* were made of those in our own, aa well aa of the comparing stars, in the ephemera of the Nautical Alumnae. During all these fine nights the assistants were making up lost time with the circle, extrud- ing their nightly zones to the limit their vision would bear, ami adding an average of more than a thousand stars to the catalogue each month. A part of their work at this period was in the 5 immediately Mirrounding the pole, which was observed in one belt, the slow motion of the stars permitting the circle to be moved through that space without the risk of losing any object. In order to insure this also, the same zone was observed on three successive nights, and after comparison of the several results, every star not recorded on each occasion was specially looked for. The circle was read for every star in the polar belts. One of the 9th magnitude was found which performed its entire revolution within the field of the' telescope. ! When double, the differences of right ascension and declination, and the magnitudes and colors of the components, were noted. There were quite a number of these last which escaped the sweeps of that eminent observer. Sir John Herschel. That our estimations of magnitudes might be comparable, Lieut. MacRae and myself had early referred to small and well-known stars of the British Association catalogue as standards, ascending or descending in the scale of brightness to the extreme magnitudes embraced in it. In like manner, the judgment of Mr. Phelps was based on Mr. MacRae' s estimates. The smallest star visible in the telescope of the meridian circle, illuminated for ordinary work, and on good nights, was set down as 12th magnitude. Many of Lacaille's must have varied greatly since the date of his work, and not a few of them may probably have short periods. How many of the sixty, not perceptible by us when sought for, may only have been in the wane, remains for the decision of later astronomers. No doubt a part of these discrepancies may be due to erroneous entries in his observation books, and others to errors since made in the reduction of his work; but as the case now stands, we have ample data to show that the plan's of the stars contained in the catalogue (Lacaille's) published under the direction of the British Association are extraordinarily inaccurate. That many of the stars south of the zenith of San- tiago are variable, is established by the fact that our observations embrace quite bright stars not contained in his zones ; and one or two of those not visible when twice sought in the early months of the work, were subsequently observed near their proper places. But the variable star of the southern hemisphere which has most interest is i Argus. Taking into account the surrounding nebula, the contiguous clusters of stars, its color, and changes of brilliancy, there is probably no sidereal object more wonderful. From 1834 to 1838, during which Sir John waa at the Cape, it never exceeded <* Centauri in brightness, and at one time was ' ' a good match with Fomalhaut." In 1677, Halley had rated it as low as a 4th magnitude; in 1751, Lacaillc saw it a 2d; from 1811 to 1815, it had been considered a 4th again; and subsequently, and up tQ 1845, it had varied between a not very remarkable 1st and a small 2d. At the last named epoch it exceeded the lustre of Canopus, than which Sirius is the only star more bril- liant in all the heavens. The following records are extracted from our note-books : 1850, February 9. A bright, clear night, and steady atmosphere. Comparing the brightest visible stars, they rank — Sirius, Canopus, i Argus, « Centauri. The yellowish-red light of » Argus is mere marked than that of Mars. February 13. » Argus apparently less bright than « Centauri. March 31. » Argus is quite aa bright as the two stars of « Centauri, and superior to all except Hirius and Canopus. April 15. * Argus approaches the brilliancy of Canopus.* April 18. Night cloudless, and without haze. After the observations, careful estimation placed » Argus quite equal with, if not superior in brightness to * Ceutauri. They were equi- diHtant from the meridian. in Hon. Y. V. Stnutun. OF THE EXPEDITION. XXXV11 May 14. i Argus and * Centauri being at the same distance from the meridian, the former is considerably the brighter. May 16. » Argus more brilliant than the two stars of * Centauri combined. May 28. * Argus goes on increasing steadily. With the ruddiness of Aldebaran, its magni- tude is only less than Canopus.* Its change since the close of October has been nearly, if not full half a magnitude. June 3. To the unassisted eye the atmosphere is remarkably clear, the "coal sacks" of the via lactea being of startling blackness, i Argus and Arcturus have, approximately, the same color, and though the latter is rather ruddier, the former is considerably the brighter. When compared, they had about the same altitude. July 5. i Argus is still as bright as the two stars of * Centauri. July 25. » Argus as bright or brighter than the two of* Centauri. July 28. i Argus is on the wane, and is now very little superior to * Centauri. f 1851, May 18. i Argus certainly not so bright as * Centauri. December 28. i Argus quite as bright as * Centauri. 1852, January 22. •> Argus no brighter than * Centauri. May 10. i Argus continued fully as bright as the double star * Centauri as late as the 15th of March last. Some nights I would estimate it a shade brighter ; but when the two were at equal distances from the meridian, it was often impossible to detect any difference with the eye. Since then it has sensibly diminished. It comes nearer to my recollection of Capella, as seen in the northern hemisphere, than any other star.J These are all the memoranda recorded, and they fully sustain the impression of Herschel, of a fitfully variable star, to an astonishing extent, with neither settled period nor regularity of progression for its minor fluctuations. The more important gradations of lustre, as those no- ticed only by Halley in 1677, and Mr. Burchell in 1811-15, occur but after long intervals. Since 1822, there have been annual watchers of its changes, and none have seen it smaller than a 2d magnitude star. That the astronomer of the northern hemisphere may appreciate the lustre of the binary system, (« Centauri), with which I so constantly compared it, a1 Centauri neither exceeds •/, nor falls below ?. Leonis, which is the more obscure of the two ; *2 is, as nearly as pos- sible, equal with Antares or Spica, with the decided orange tinge of the former, rather than the silvery radiance of the latter. Lieut. MacRae, on one occasion, estimated them at 4th and 2d magnitudes respectively, whilst I put them up as high as 1 and 1.2, which is certainly nearer the fact, though neither of us ever considered *s so bright as ft. As their distance never ex- ceeded 12J"§ during our stay in Chile, the unassisted eye did not separate them, and their combined light is, perhaps, one third greater than that of Arcturus. Our time in Chile was rapidly drawing to a close. Before leaving it, I was desirous to learn something more of its people, topography, and agriculture ; and as it was necessary to save my eyes for the series of observations on Venus, to commence about the close of May, I left Santi- ago for Talca, soon after terminating the observations on Mars. Almost incessant work during nearly a hundred successive nights, in a climate so dry as to open the joints of wood that had been baked in an oven at home, had left me quite destitute of energy — very Chilean in apathy. Provided by considerate friends against most of the discomforts of the road, and instructed by them in all useful matters, the month passed on horseback proved an effectual restorative. Within that time, I visited the third city of the republic in population ; the battle-field of Lon- comilla ; descended the Maule in a boat as far as Constitucion on the sea, and re-ascended it to within fifteen miles of Talca; had an opportunity to see the principal towns in the most produc- tive agricultural provinces, and entered the Andes along the banks of the Cachapual, as far as * Letter to Lieut. C. H. Davis, U. 8. N. t Letter to Rear Admiral Win. H. Smyth, K. N. t Letter to Dr. C. L. Gerling. $ At mean epochs, June 15, 1850, and 1852, the differences in right ascension were 11".77 and 11". 5C, and of declination 3" .25 and 1".33; the former derived from twenty-four, and the latter from eight observations. XXXflll ORIGIN AND OPERATIONS the mineral baths of Canqucnes. As, of necessity, the journey wa« to be very hurried, much accurate geographical knowledge was not to be expected, and no other instruments were taken along than « Ilimten'a barometer and one thermometer. But the excursion brought me in con- tact with gentlemen who had visited the sources of several rivers, when crossing different mountain chains, and their information has been used in compiling the maps of Vol. 1. Very soon after my return, the government decided to establish a National Observatory, and official information of the fact was communicated by Prof. Doraeyko, who had earnestly inter- ested himself to this end, and who was requested to ascertain whether our equipment could be purchased. In such case he was authorized to make the necessary arrangements for the trans- fer at the termination of our work. This was most gratifying information, a happy result to one of the cherished objects of the Expedition, and congratulations were tendered the Professor, that his adopted country offered this new evidence of its intention to continue, as it always had been, the most liberal patron of science and arts among the southern republics. Having been invested by the honorable Secretary of the Navy with power to dispose of our outfit, the instru- ments and few books belonging to the United States were offered at the prices paid for them without after-coste for transportation. Piers, &c., and the observatory building — the latter presumed to have deteriorated, and therefore not so valuable as when new — it was proposed to have appraised by two competent mechanics. Had it been optional with me, these last would have been freely offered to the government as a slight return for the many services so cheerfully extended us, and the propriety of doing so was immediately submitted to the department. Un- fortunately, the letter from the Hon. William A. Graham, then Secretary of the Navy, promptly acceding to the suggestion, did not reach me until the purchase had been effected, and I could take the responsibility to present only the necessary objects and furniture for carrying on the duties of the observatories, which had been obtained in Chile. When the basis of the negotia- tion was settled, Dr. Charles Moesta, a graduate of the University of Marburg, was appointed director of the new establishment, and immediately applied himself to acquire practical knowl- edge of the instruments. He already had acquaintance with portable astronomical and mag- netical instruments before leaving Germany, and for more than a year preceding this appoint- ment, had filled the post of assistant to the chief of the Topographical Survey in Chile ; so that two months' practice, at the hours we were not using the circle or equatorial, enabled him to become expert in their manipulation. Two of the gentlemen previously mentioned as ap- pointed government students were named as assistants very shortly after our departure, and more than one proof has since been given that the administration cherishes a desire to promote the interests of astronomy. The expedition which the President sent to Peru to observe the total eclipse of November 30, 1853, and the purchase of one. of Kessel's best clocks, furnished with the most improved self-winding telegraphic register, may be cited as two such evidences. The experience obtained in the first series — summer as it was with us — had led me to expect very little from the last one on Venus. Then the planet was far south, the air was dry, and we had few clouds to contend with : now, every condition was reversed, and in the whole pre-ar- ranged period it was possible to make differential measures only on nine evenings prior to the conjunction, and on eighteen mornings subsequent to it. There was not one occasion when the measures were wholly satisfactory. The nearest approaches to it were in the evening twilight of June 23, when the record shows: "Sharp, clean images throughout ; if the star would have permitted a little more light, I should have put down all the measures as satisfactory." AIM! on the morning of August 12th : "Good morning ; images not very sharp at first, but quite satisfactory during the last observations by daylight." I could find no star in the place of H. C. 15551, R. A. 1h. 50m. 58s. Declination + 23° 19' 13", and therefore made measures with the nearest one which was approximative^ of the magnitude assigned by Lalande to No. 15551. Of 47 meridian observations, some of them were very good, or at leant they were no regarded when made. More than the usual amount of work was accomplished by the assistants during these three OF THE EXPEDITION. XIX1X months. The winter of 1850 had convinced me that with so small a corps it would be impossi- ble to sweep all the space between our zenith and pole, and I had limited the upper zone at declination — 65° 50'. As soon as the map was filled, showing that all the space south of that parallel, had been once swept, they employed the remaining nights in re-observing doubtful spaces when individual measurements or magnitudes were marked for such revision — each of them not unfrequently making a series on the same night. Winter as it was, on 57 nights, between May 29th and September 9th, above 5,000 stars were observed, clouds obscuring those remaining of the preconcerted term. Too much -praise cannot be given these gentlemen for the capability, zeal, and assiduity manifested in the laborious duties undertaken. , Trials of patience and hours of physical discomfort were inevitable concomitants of zone work with our circle, yet there was no abbreviation of tasks partially self-imposed, and I boldly assert that few have ever persevered more cheerfully under the continuous employment which unfavorable weather forced on some months of our stay in Chile. The observations for longitude, though not very numerous, probably give a very near approxi- mation to the truth. There was no leisure to compute anticipated occultations for ourselves, and the Nautical Almanac tables were not reliable. Moreover, neither the zone work nor the differentials with Mars and Venus could be interrupted for the observation of occultations or moon-culminations. When the latter were not interfered with, every star predicted in the almanac as liable to occultation was looked for at the proper time ; but there was more than one occasion when no occultation occurred, although the ephemeris made it nearly central in that parallel, and thus the list embraces only forty-four occultations — one hundred and seven- teen moon-culminations. On the 5th of January, 1852, there was witnessed the very rare occur- rence of a double occultation of i Geminorum. There are several lofty mountains with deep intervening valleys on the southern hemisphere of the moon. These become very conspicuous when the moon is far north, and in our note-books it was essential to record whether the zenith distance of the summits or that of the circular line of the disc was observed. On this occa- sion, i Geminorum remained 2m. 36. 4s. behind the first mountain, was 36.9s. traversing the valley between it and the proximate peak, and finally emerged 4m. 05.8s. after the first dis- appearance. The first contact of the moon's limb with the sun at the solar eclipse June 17, 1852, was hid- den from us by clouds; but as the differences of their diameters were measured at transit over the meridian, and the end of the phenomenon was observed, these will add to the reliable data bearing on the determination of our longitude. The meridional distance between the observatory on Santa Lucia and that of Mr. Mouatt, in Valparaiso, was ascertained by exchanging telegraphic signals, for which purpose the operators kindly placed the line at my disposal a few nights before I finally embarked from Valparaiso. Every precaution was taken by Lieut. MacRae at Santiago, and myself at Valparaiso, to insure an accurate result, and the mean of 100 signals — 50 each way — showed the difference of longi- tude to be 3»«. 56.51s., with a probable error of ± 0.021s. For the reason respecting occultations and moon-culminations given in the preceding para- graph, meridian planetary observations, except of Mars and Venus, are also few in number. Neptune, the planet to whose orbit our late able countryman Prof. S. C. Walker had devoted so much labor with such distinguished success, was followed at opposition whenever the zones would permit ; but this was the only one. A complete set of portable magnetical instruments was made under the direction of Colonel Sabine, R. A., by Jones and Barrow, of London. This embraced a declinometer, a unifilar magnetometer, with a separate vibration apparatus and a dip-circle, with reading microscopes, all which instruments are described in a volume by Captain Riddle, R. A., published by authority of the Lords Commissioners of the Admiralty, and are noticed more at length in the appropriate volume (Vol. 6) of our work. Finding that the rock of Santa Lucia strongly influ- enced the magnets, as the iron bars of our windows were too near for absolute determinations \1 ORIOIN AND OPERATIONS • •n oar own premises, the proprietor of an extensive garden in tin' immediate vicinity \< kindly jHTinitted it* use. On the 1st. lltli, and term-days of each month, observations were made there for tht> total horizontal force ; the inclination was observed on the first two days, . and the ili-rlination on that last named. When either the 1st or llth fell on Sunday, the <>1>- serrations were made on the following day. On the term-day the changes of the declination also were noted at short intervals, extending through 24 hours. These last observations were under charge of Mr. Smith, who was occasionally aided by the Chilean students of astronomy. Those for absolute elements during the tint year were made by Lieut. MacRae and myself; rabaequently, the declinometer and dip circle were given up to Mr. Phelps. The meteorological instruments comprise a barometer of Hassler's construction, having an internal diameter of six tenths of an inch; standard thermometers by Traagttton A' Simms and Jones ; self-register thermometers by the former artists, and a psychrometer by Buuten. The Reaumur scale of the last is divided on paper, and enclosed in a glass cylinder surrounding the tube, to which its lower extremity is joined by fusion. By the capillary action of a linen cord, one of the bulbs was constantly supplied with water from a bird-glass. Some time after the observations commenced, a spirit-register thermometer, divided on the tube to single de- green, was converted into a minimum wet-bulb, to which moisture was conveyed in a similar manner as to the preceding. The barometer was suspended in a corner of the ottice-room; all the others within boxes open at bottom, and under the adjoining balcony on the south side of the house. Observations were commenced in November, 1849, and, during the first year, were continued throughout the day and night at intervals of three hours. Afterwards, the journal was placed wholly under the charge of Mr. Smith, and the 3 A. M. observations were necessarily omitted. Besides these tri-hourly records, there were hourly notations on the meteorological term-day of each month, omitting the hours from 1 to 5 A. M., both inclusive, when Mr. Smith was the only observer. The journal closes with September 13, 1852. Among the interesting notes with which it abounds, are those relating to the frequent earth- quakes experienced. A general summary of these, together with such deductions as it was possible to draw from observations, which the phenomena themselves almost incapacitate one from recording properly, have been given in Chapter IV, Vol. 1, and allusion is made to them here only because of their constant influences on the adjustments of our astronomical instruments. At other observatories, the astronomer either finds the level, zenith-point, and azimuth of his meridian instruments almost unchanged during weeks and months, or they are subject to deviations following some general law of which the records of his meteorological journal afford him satisfactory exponents, and his adjusting screws may remain untouched. We dared not rely on the permanence of ours from the commencement to the close of a single series of observations; for, besides the shocks that vibrated walls, whose warning or accompa- nying rumble started ns into attention, there were an infinity of others to which man is physi- cally insensible, but whose occurrences were quite plainly indicated by disturbances of the meri- dian circle and clock. Multiplying work of a certain character, as these imperatively did, there was less time for more interesting observations, and the verifications became greatly more laborious. How excessive these disturbances were, may be judged of from the fact that the earthquakes of one day retarded the clock ll^s., and changed the azimuth of the circle piers 5'. Our work in Chile was completed. Dr. Moesta had taken charge of the NATIONAL OBSERVA- TORY on the 14th September; our original observations had been packed to go round Cape Horn, and the copy remained to accompany me across Panama; very cordial acknowledgments had been tendered to the government for its unremitting courtesy, consideration, and assistance; a moat complimentary letter of leave had been received in reply, and tin-re remained but to order the assistants to the Tinted States before embarking myself. The route of Lieut. MacRae had been a subject of thought for some time. There was an interesting question in magnetism to be solved, and many years might elapse before another equally favorable opportunity would occur; the geography and meteorology of the region he would traverse tor these observations OF THE EXPEDITION. xli were almost unknown, and of themselves merited a special journey ; I therefore determined to place suitable instruments in his charge, and to direct him to proceed home via the Uspallata pass of the Andes, and the pampas of the Argentine republic. In addition to the magnetical instruments, he was supplied with three pocket-chronometers ; a sextant and an artificial hori- zon; a Bunten's and an aneroid barometer; thermometers, &c. ; and his orders were as follows: " It being considered of much interest to science that a series of magnetical and other obser- vations should be made at various heights and across this continent, you will take charge of the instruments selected for the purpose, and proceed to the United States, via the Uspallata pass and Buenos Ayres. The successful prosecution of your expedition being dependent on the transitable condition of the Andes, for which no definite period can be assigned, the time of departure from Santiago is left to your discretion. On arriving at Buenos Ayres or Montevideo, should you ascertain that the United States can be reached more expeditiously by so doing, you are authorized to proceed to England in the mail steamer, in which case you will convey the instruments to Woolwich and repeat the observations there also, for the purpose of ascertaining what changes, if any, have taken place in the magnets since they were first examined by Col. Sabine, E. A. And as there are facilities for determining the temperature co-efficients of the magnets at Woolwich which may not be so readily accessible at Washington, should you visit England, it is desirable that these experiments should not be omitted/ "In the journey across the Andes and pampas of Buenos Ayres, the objects to which your attention is especially directed are : 1st. The law of the decrease of magnetic intensity with height. 2d. The measurement of zenith distances of celestial objects exceeding 90°, with a view to improving tables of refraction. 3d. Geographical information . 4th. Meteorology. " The height of the Uspallata pass being about 14,000 feet above the level of the sea, it is desirable that all the magnetical elements be determined at five nearly equi-distant elevations, both ascending to the Cumbre and'descending towards Mendoza. At the summit, the observa- tions for total intensity should be repeated, and at not less than two intervals of the deflecting magnet. Here, also, you may have the best opportunity for observing zenith distances. Crossing the pampas, the magnetical observations should be made, as nearly as practicable, at every hundred miles of longitude, or, assuming Mendoza to be in longitude 69° west of Green- wich, and Buenos Ayres in 58^°, there will be six stations between these two cities. " Though it is not to be expected that you will have time to execute an elaborate map of any great breadth of country, your chronometers and astronomical instruments will enable you to locate with far greater accuracy than is now known, not only the stations you may select, but also the towns, rivers, and lakes near which you may pass. Whatever information you collect cannot fail to be of the highest interest to geography, and your attention is particularly invited to the lakes and rivers lying between Mendoza and Rio Quinto, just beyond San Luis. Have these rivers and lakes outlets in the Parana, or are their waters lost in the sands of the pampas? It is possible that manuscript maps will be found at some of the cities you may visit, of which it may be permitted to make copies. "Nine A. M., and 3 P. M., being near the hours of maximum and minimum atmospheric pres- sure, should be selected for meteorological observations whenever you are stationary. These, better than any others, will enable us, when calculating the elevations of your stations, to deter- mine the corrections applicable to observations at other epochs. The temperature of dry and wet thermometers, the direction and estimated strength of winds, and character of clouds, will occupy your attention also. To these, many notes may be added respecting the hours at which the winds begin in the morning ; the electrical state of the higher atmosphere ; whether there are strata of clouds moving in different directions above the Andes — facts that will throw light on the meteorology of a region almost if not quite as little known to us as is its magnetical condition. "Baron Humboldt has desired to be informed whether the snow on the mountains is of a ' glowing red ' color about sunset and sunrise, as he had often observed it on the Alps and the G° ORIGIN AND OPERATIONS OF THE EXPEDITION. Himalaya chains at those periods. From this side of the Andes we have not unfrcqucntly wit- nessed such color about sunset, and your journey will afford opportunities to ascertain whether the phenomenon is observable in the morning. Conversations with intelligent Argentines give reason to believe that there are periods when the atmosphere is in such a condition about sunrise as will reflect the red rays from lofty mountain tops to observers on the plain. "Any information you can collect respecting the populations through which you pass; their resources, both agricultural and mineral ; their manufactures and commerce with other towns of the republic; the number of births and deaths; the condition of morals, diseases, and crimes — all will give additional interest to your report. "In a service of the nature on which you are about to set out, of necessity, much is left to your discretion. Your ability and zeal in behalf of the Expedition, and the service to which we belong, afford every confidence that the duty will be executed with credit to yourself and the navy. At its completion, proceed to Washington and report to me, furnishing, as shortly thereafter as may be practicable, a detailed narrative, which will be presented with my report to the honorable Secretary of the Navy. "Six hundred dollars are furnished you for travelling expenses, and a draft on Messrs. Baring Brothers for £100, equal to $484, on account of your pay from 1st of October proximo, inclu- sive. Of the former you will keep an exact account, taking vouchers whenever it is possible to obtain them, to be returned in the settlement of your account at the office of the Fourth Auditor. " Wishing you a pleasant journey, and early re-union with the other members of the Expe- dition, I am, &c." Lieutenant MacRac returned to the United States in April, 1853. Having been thrown from his mule shortly after leaving Mcndoza, his barometer was broken, and it was feared that the rates of his chronometers were so disturbed as might throw doubt on the longitudes of the mag- netical stations selected on the great pampa. Most laudably and earnestly desirous to perfect his work, he immediately volunteered to return at his own cost; and being permitted to do so by the honorable Secretary of the Navy, he sailed for Buenos Ayres in August, crossed both the Portillo and Uspallata passes, and nnally arrived at Washington in March, 1854. His report has been given at length in Vol. 2. It will be remembered that the programme of the Expedition proposed a collection of objects in natural history. Unfortunately, our party was so small that no member of it could be spared from the more pressing duties of the mission. Nevertheless, through friends, and by purchase, quite a large proportion of the native birds and minerals, together with some of the mammals, fish, reptiles, shells, fossils, botany, and Indian antiquities, were brought home by me. Many of the mineralogical specimens are of rare interest and value. Plants, bulbs, and seeds were also forwarded to the government establishment at Washington every few months of our resi- dence abroad, and many of them of a useful and ornamental character, wholly new in the United States, are now thriving. Such of the objects as were new to science have been well figured, and are described by eminent gentlemen selected by the Smithsonian Institution, which very considerately consented to direct their elaboration. The names of the naturalists prefixed to the several appendices of Vol. 2, are satisfactory evidences that none could have performed more ably the duties with which they had been intrusted. Duty having constantly confined Mr. Smith to Santiago, or its immediate vicinity, he was unwilling to return to the United States without having seen something more of Chile. He therefore resigned his appointment, and proceeded to the southern provinces, where he had an opportunity to learn more of the Araucanians than has probably ever been permitted to an in- telligent white man. We parted from him with regret. Mr. Phelps and myself embarked at Valparaiso October 1, and after a detention of fourteen days on the isthmus of Panama, reached New York just thirty-nine months after I had left that city. WASHEWTOW, 1854. j. M. GILLISS. OBSERVATIONS THE PLANETS MARS AND VENUS, CERTAIN PRE-SELECTED STARS NEAR THEIR APPARENT PATHS 1849-'52. MARS AND VENUS. SANTIAGO OBSERVATIONS. INTRODUCTION. DESCRIPTION OF THE OBSERVATORY. The rotary observatory of the astronomical expedition occupied a terrace constructed 175 feet above the streets of Santiago, and on the northern slope of Santa Lucia. Its elevation above the sea is 1,940 feet. The terrace was formed partially by breaking down crags of the rock com- posing the hill, and partially by building a dry wall thirty feet high, upon a projecting ledge, from the west side. . Between the wall and slope of the hill, the space — perhaps six feet wide at top — was filled with fragments of porphyry and loose earth, to which solidity was given by pouring in water during the progress of the work. An artificial surface was gained by these operations forty feet in extent from east to west, and twenty-five feet wide from north to south. As this terrace is nearly ten feet more elevated than that on which the observatory building for the meridian circle is erected, a flight of steps was made from one to the other by using the columnar strata of the hill. The rotary observatory occupies the western side of its terrace, with only a narrow pathway between it and the face of the artificial wall. The pier for the telescope was first built. On a mass of masonry, five feet in diameter and two and a half feet high, there are secured four capping-stones of red porphyry that form an octagon seven inches thick and inscribed in a circle 6.5 feet in diameter. No single stone of such dimensions could have been quarried by the artisans of Santiago, and if obtainable, could not have been raised to the observatory without sending to Valparaiso for machinery. The base of the masonry was the native rock, and the bed and joints of the cap-stone were filled in with a grouting of hydraulic lime. A foundation of masonry, fifteen feet in diameter, and rather more than a foot in height above the surface, was built on the rock, in situ, sur- rounding the pier, to receive the sill of the observatory. The sill, formed from circular segments of one and a half inch plank, five and a half feet long, is put together so as to break joints, and rests immediately on wedges laid on the masonry diametrically. A grooved cast-iron rail is secured by screw-bolts and nuts near the centre of its upper surface, and the level of the sill is perfected by means of the wedges. The curb is formed in the same manner, but of rather stronger wood, and it is rendered more inflexible by the manner in which the corresponding grooved rail is secured to its under side. It rests on six 24-pounder cannon balls. Both the curb and sill are composed of two thicknesses of plank. The frame-work of the building, supported on the former, is of light and well-seasoned yellow pine, and the weather-boards are of white pine, tongued and grooved together, and fastened to the frame by screws. The height to the eaves is eight feet. The roof is a cone, having for its apex a tin cap, hung by one edge on long hinges, and which, when closed, laps two inches over the wood-work all round. The aperture covered by the cap is two feet in diameter ; the width of the door in the inclined roof twenty inches. An upright, that passes through the roof and INTBODUCTION TO TUB is bolted to one of the rafters, serves as a leader for the pulley to elevate the cap. This may be thrown IH-VDIH! tin- vertical, it' necessary, and a single cord fastened to the rtnogthening bars of tin across its base, serves to pull it down after the inclined door has been first closed. Although of like materials and construction as the weather-boarding, a canvass cover was accu- rately fitted to the roof for additional security. This was drawn tightly over the planks, and when securely nailed down and painted, the portion obstructing the door-way was cut away. There is a small window opposite the door of entrance. The foundation-wall was sufficiently wide to support the ends of the floor-joists, also. These timbers were framed entirely free of the masonry-pier in the centre, and were of such width that the floor was on a level with the upper surface of the curb. To prevent the building from wabbling, there are three horizontal, cqui-distant, and adjustable rollers secured to the joists, the space between them and the curb not exceeding one-fourth of an inch. The building was first erected at Washington, and its several portions carefully numbered before taken down for transportation. As it was extremely light, no machinery was required to turn it, slight pressure by the hand being quite sufficient to move it in either direction. Altogether, it may be ranked among the most economical and easily-managed rotary observa- tories ever built. THE EQUATORIAL. The equatorial telescope was made by Mr. William J. Young, of Philadelphia ; its object- glass, from French materials, by Henry Fitz, jr., of New York; and its micrometer by Mr. William Wiirdeman, at Washington. As will be seen in the opposite plate, the construction of its stand is that devised by Frauenhofer, and since so successfully built by Messrs. Merz & Mahler for observatories in many parts of the world. The diameter of its object-glass is 6.4 French inches, with a focal length of 103.7 inches. Its polar and declination axes are frustums of steel cones, the former twenty-one and a half inches long, with diameters of two and a half and one and three quarters inches at its two extremities, and the latter twenty-two inches long by three and a half and two and a half inches diameter, respectively. The hour-circle, with a diameter of nine and a half inches, is divided on a band of inlaid silver into spaces each of four minutes of time, which are read by two opposite verniers to four seconds, and by estimation may be easily subdivided to one second. The declination-circle has a diameter of twelve and a half inches, divided, also on a silver band, into spaces of ten minutes of arc, divisible by two verniers into ten seconds. It is numbered from 0° to 360°, and reads 0° when the telescope, pointed to the equator, is on the west side of the stand. The finder has an object-glass, 1.75 inch in diameter, with a focal length of eighteen inches. This latter object- glass and the eye-pieces to the micrometer are somewhat imperfect, and there is some little play (•i the declination axis; but, except these defects, the instrument is admirably constructed. The supporting-stand is of solid and well-seasoned black walnut, dried in a kiln for more flfctitual security against shrinkage in the dry summer atmosphere of Chile. It rests on four heavy steel screws, by means of which the adjustments for polar elevation and transverse level may be effected. The azimuth is controlled by horizontal screws, working through iron clamps let into and firmly fastened to the pier at the two meridional foot-screws. A driving-clock is fitted to the instrument ; but dust accumulated so rapidly in summer, that its use was never attempted after the first few nights. The repcating-micrometer has a divided circle of four inches diameter, which may be read by one vernier to 30". Constructed on the English plan, its counting-scale is within the box, each five teeth of the comb being separated by a deep indentation. It has five permanent transit-wires, and two parallel movable wires perpendicular thereto. One of the latter is pro- vided with a ; -head, divided int.. one hundred equal parts ; the other is only a zero-wire, ith ina-nityin^ powers from one hundred and lilty to five hundred times, may !«• moved parallel with the register-wire by means of a rack and pinion and dove-tailed slide. THE EQUATOREAL. SANTIAGO OBSERVATIONS. xlvii For "dark-field" illumination there are two lamps suspended on gimbals, that throw light through the small tubes seen on the plate in advance of the micrometer ; but there is no means for illuminating the field. When unpacked, all the wires put in by the maker were found to have been broken, and the most available material from which to insert a new system was an exceedingly delicate and uniform fibre of unspun Chinese silk. From the 6th of December, when the instrument was fully mounted, to the evening of the 10th, was passed in becoming familiar with its peculiarities, and bringing it into approximate adjustment, correcting its errors one by one to nearly minimum amounts. It is unnecessary to transcribe the observations made during the several approximations, but only those which were just prior to commencing the appointed series of diiferentials. After the observations of Decem- ber 10th, none of the screws were ever disturbed. Observations to determine the position of the Instrument. Date. Dec. circle. Star. Time. Hour circle. Dec. circle. Barom. Temp. 1849. *. m. i. A. m. s. ° / // Inches. . Dec. 10 E. a Eriilani . . 1 30 2.3 11 57 54 57 58 35 / W. 1 42 17.0 12 10 10 302 1 0 E. a Pavonis . . 2 13 41.4 600 302 46 50 W. a Cell . . . 2 25 18.9 11 30 52 3 29 50 E. 2 35 23.0 11 40 56 356 30 30 E. 2 39 43.6 11 45 17 356 30 30 W. 2 4J 46.7 11 51 20 3 30 0 W. ( Argus . . . 3 11 54.0 6 1 12 58 40 0 28.170 67.5 1850. Oct. 18 E. 0 Aquarii . . 91 8 7.1 23 42 49 6 15 30 VV. 21 20 39.7 23 55 26 353 45 0 E. /? Tri. Amt. . . 81 59 48.2 6 16 1H 297 2 25 W. Y Hydri . . . 22 14 7.3 6 24 23 74 42 0 28.000 64.0 1851. Dec. 10 W. 1 Argui . . . 4 38 6.4 600 58 54 30 E. ,t Orionu . . 5 4 29.8 11 56 0 8-23 30 W. 5 12 25.0 0 3 55 351 37 10 28.040 61.5 1853. May 29 E. a' Crucis . . 19 11 7.6 11 52 0 62 17 20 E. a Argus . . . 1!) 21 20.5 600 307 22 0 W. a' Crucis . . 12 26 30.4 0 7 24 297 43 20 28.150 46.8 Let d and d' represent the readings of the declination-circle, d when that circle is to the east of the stand; t and t' the times of observation, t when the declination-circle is east; Ti and Ji the corresponding hour-circle readings; ;rthe polar distance of the star observed, ? its refraction in altitude, and g' its refraction in polar distance: then, if we call the index-error of the decli- nation-circle e, the collimation-error of the telescope c, the vertical error of the polar axis x, and its azimuthal error y; e = l(d + d> — 360°) ; c=J when the star is in the meridian, and when the star is six hours from the meridian, — it. xlviii INTRODUCTION TO THE Applying these formulas to the preceding observations, the instrumental deviations at tin- successive dates were as follows : Instrumental deviation*. Date. r. Ik 1 ,. . , IMS. » Dee. 10 19.S W. ±0.0 + 44.5 — «3.7 1890. Oct 18 1851. 15.0 E. + M.M -8J.9 - 1.6 Dae. 16 90.0 E. — l.M — 4.9 +73.0 1859. May 99 90.0 E. + 4.90 -M.9 -49.0. j These results show that the deviations of the equatorial could have no appreciable influence on observations made as were the differential measures with the planets Mars and Venus. Value of the Micrometer Screw. To determine the value of the micrometer-screw, transits of ft Hydri were observed over the index and micrometer wires, placed at intervals of five, ten, and twenty revolutions apart. They gave the following results at different periods : Due. Bur. No. of revolutions. No. of otwervatinrui. Mean of the time«. Equatorial Interval. Value of one revolution. 1849. i. „ a Dee. 13 0 Hydri . . . 10 10 62.800 104.130* 19.413 do ... SO 10 185.650 388.415 19.431 1850. Feb. I do ... 10 10 63.050 194.934 19.493 do ... 10 10 63.110 195.120 19.513 do ... 1 10 31.685 97.963 19.593 1851. Mar. 14 do ... 10 10 69.830 194.366 19.437 90 do ... 10 30 63.040 195.057 19.506 1852. Mar. 16 do ... 10 30 61. 765 194.550 19.455 It do ... 10 90 53.860 194.587 19.459 do ... 1 SO 31.433 97.309 19.466 June 9 do ... 10 90 63.175 195.944 19.594 The value adopted for the reduction of observations is 19".49. The diameter of the micrometer-wires was first ascertained by turning the telescope towards clear sky during day-light, and bringing the movable wire in contact with the index-wire alter- nately on each of its sides. Under a magnifying power of 235, the index-wire appears some what the greater of the two, but they formed part of the same fibre, and the difference between them could not be detected when superposed. A mean of ten measures by day-light gave for the diameter of the two 2". 504, or, on the assumption of equality, each wire had a diameter of 1".252. Observations by lamp-light, however, give a very different result. Thirty measures, made at different periods, show that the effect of the lumps is to increase the apparent diameters from 1".2.">2 t>. 'J".199. In the reduction of all observations after lamp-light, the diameter adopted is 2". 20. Frequent occasions occurred, during the progress of the adjustments, to test the optical capacity of the instrument. The first object viewed with it was the planet Saturn ; and though twilight had scarcely closed in, five of the satellites, the shadows of the rings, and dark inte- rior spaces, were admirably shown under a magnifying power of 235 times. The sixth star of SANTIAGO OBSERVATIONS. xlix the trapezium in the sword-handle of Orion was distinctly seen whenever sought at rea« >nable altitudes; it separated unequal and close double stars, as A Octantis, with great precis. jn and sharpness, and defined the millions in the gorgeous cluster surrounding 47 Tucanae with won- derful eifect. An aggregation of star-dust, as appears this most extraordinary object, a power of 235 almost separates each brilliant particle from the rest. LATITUDE. Twelve hundred and sixty observations have been discussed for the latitude of the meridian circle, from which only nine observations of the twenty-two selected stars have been excluded, and on each of these occasions there is doubt of the true circle-reading. Bessel's refractions, as constructed by Professor Coffin, U. S. N., for the Washington Obser- vatory, have been used in the computations. A special table for barometric corrections, ren- dered necessary by the elevation of the observatory above the sea level, has been so formed that all the logarithms remain positive on subtracting .02306 from Log. R of Table II. All the observations were reduced to mean places of the stars January 1st, 1851, and the declinations at that date have been derived from the British Nautical Almanac for 1858, by application of the annual variation in declination during 7 years. / From quick moving stars. No. Star. Zen. dirt. Adopted mean declination. No. of ob- servat'ns. Resulting latitude Probable error. 1 o i 9 0 43 • / // 34 9 22 28 56 » / // it 2 a Piscis Aust N. 3 2 30 24 38 54 41 3 N 4 40 28 46 22 38 69 4 a Scorpii N 7 21 26 5 47 43 92 5 N. 9 34 23 52 40 46 67 25 03 6 0 Corvi N. 10 59 22 34 20 09 37 7 0 Ceti N. 14 38 18 48 19 54 29 25 40 8 N 23 3 10 22 55 48 39 9 0'Ceti N. 24 28 8 57 13 84 34 10 • Eridani , . . S 94 34 57 59 41 72 46 11 0 Orionia N. 25 3 8 22 40 70 14 19 8 25 19 58 39 3 69 79 13 a Hydra N. 95 95 «"° •» 8 0 55 51 71 14 a Ceti N 36 56 4- 3 30 6 84 15 0 Leon is N 48 51 15 24 17 17 38 Iff N. 54 47 21 20 20 88 48 24 93 17 N 61 49 28 22 52 83 51 18 0 Tauri N 61 55 -f 28 28 33 90 31 No recent observations appear to have been accessible from which to correct the mean places of * Eridani and < Argus subsequent to the publication of the Nautical Almanac for 1851, (in 1847,) and as one certainly is, and the other may, very probably, be in error, they have not been incorporated in the mean. Giving to each of the other stars weight proportionate to the number of observations, the latitude resulting would be S. 33° 26' 25". 27 with a probable error of ±0".042. H INTRODUCTION TO THE From circumpolar stars. Bur. Zn.tM. No. of ob- •rnraflw. RcnulUnf lall- tade. ! 1 1 •nor, • i • * a „ 1 u.c.r v Oclantta \ L.C.I 85 50 87 17 47 • 3396 »5. 95 ±0.919 I U. C. f 0Hydri \ L.C.I 44 40 H« • : • 88.18 .m 3 U. C. f '<*— L.C.I 45 OS •- . 56 19 •"..-- .198 U.C. f 35 18 119 4 • Tri. ADM. .... | 35.55 .195 l..r. ; 77 49 M As these are wholly independent of tabular places, preference is given to the latitude resulting from them, though differing in excess from the determination by quick moving stars more than half a second of arc. Combining the four partial determinations of circumpolar stars by weights derived from the sum of the numbers of observations at each culmination by their product, the adopted latitude is — 33 26'25".89, and comparing each of the observations with this, the probable error, by the method of least squares is ±0".0866. The equatorial is 53$ feet to the south of the meridian circle. LONGITUDE. The longitude of the circle computed by Mr. S. L. Phelps, from moon culminations and occultations observed during the same period is as follows,* the corrections to the moon's tabular place, referred to in both series, having been computed by the methods given by Professor Benj. Pierce in the Annual Report on the progress of the United States Coast Survey for 1854, pp. 115*-*120. The equatorial is 16 feet to the west of the meridian circle. Longitude from corresponding moon culminations. Moon's first limb. Moon'i second limb. Obwrredal No. of ob- •errat'ni. Resulting longi- tude. Probable emir. No. of ob- -. n ••''.-. Resulting lonpt- tud--. I': | | • ,,r error. Adopted longitude of station. i: • • , 18 23 99. 99 17 17 23 0 5 A.m. >. 4 49 35.44 39.51 39.45 39.81 33.85 33.18 33.90 35.73 37.84 ±1.71 .95 .05 •..: .58 .77 .41 9.29 6.96 10 8 90 5 5 1 h. m. t. 4 49 39.73 39.35 32.85 34.89 35.06 39.91 «. ±2.84 3.49 3.19 4.73 5.59 k. m. l. — 39S4.10 — 22.75 .00 .00 + 5 9.80 4 44 30.68 5 0 36.56 5 8 12.90 +5 19 45.00 Greenwich Oreenwicb, (mooiT« cor. tab. place*) . . . Oxford .... ... Cambridn. (Maw ) . i Charleston, (8. C.) Lone, br wetabt . 108 4 49 33.91 49 4 49 33.97 Lonfftudr from moon culmination! 4A. 4i UK. 33t.74 ±0. B93.. 0 A public acknowledgment igdue to the Astronomer Royal, Q. B Airy, onq.; Professor Clmllis, Cambridge, (England :) M. J. Johnson, e«q., RadcllfTc astronomer, and Profcsaors Bochc and Bond for their prompt courtesy in communicating observation* of moon culminatioim in advance of publir.itiuM, ami to l.i.-ut, nant M. F. Maury, Superintendent United States Naval Obncrvatory, for the apparent places of the group of stars preceding \ " Orionia, which Mr. James Ferguson deter- mined by mlcromctrlcal dlfferentiationn with the latter filar. SANTIAGO OBSERVATIONS. Longitude from occultations. li 1 Date. Star. Phase. Sid. time of observation. Star's R. A. Star's declina- tion. Computed correction to moon's place. Resulting lon- gitude. I860 Mar. 20 Hay 14 Nov. 8 19 1851. Jan. 13 May 17 July 9 Nov. 14 Dec. 4 1653. Feb. 27 April 6 May 5 June 2 3 * Orionia Im. . Im. . Ji. m. s. 7 20 23.79 21 1.79 27 53.28 53 59.87 • 8 4 20.75 47 35 00 9 40 47.79 10 7 56.93 10 34 30.91 10 55 28.11 0 2 29.77 4 58 9.36 6 17 45.48 5 3 43.35 6 45 34.91 13 35 57.46 15 39 18.28 5 32 35.42 2 31 38.06 6 45 42.73 13 48 36.49 17 49 22.42 13 31 0.33 18 34 36.78 A. m. s. 5 51 8.74 15.23 23.44 52 1.54 27.61 53 46.65 55 0.74 5 54 34.71 6 17 53.98 6 19 0.68 19 0 58.37 4 1420.77 4 16 52.51 4 14 21.03 4 16 52.72 18 631.11 16 33 41.96 8 45 25.62 3 3 32.40 4 19 58.19 15 35 46.23' 17 12 9.44 17 34 35.40 18 45 15.43 0 / // +20 3 23.8 19 58 37.3 SO 3 17.3 19 48 0.5 19 52 27.9 19 55 38.3 20 8 4.3 19 41 8.8 20 30 57.5 +20 34 .42.5 —30 3 7.5 +17 11 13.6 17 34 54.3 . 17 11 13.9 +17 34 53.4 —20 45 54.8 —17/15 47.0 +20 31 25.5 7 52 24.9 +18 50 47.2 —15 11 51.4 30 56 54.8 21 36 19. 3 —22 55 14.4 *. —0.29 0.29 0.29 0.39 0.29 0.29 0.29 0.39 0.87 0.87 1.25 1.33 1.33 0.70 0.70 0.39 0.33 0.82 0.60 0.23 0.34 0.69 0.70 —0.62 k. m. s, 4 42 40.32 22.58 44.34 32.21 37.66 45.32 33.58 20.86 38.46 23.15 31.32 36.55 39.52 32.86 34.38 34.28 28.96 28.49 ' 38.26 25.08 40.67 32.64 38.32 4 42 40.05 • Orionis Im • Orionia Im. . * Orionis ... .... Im. . Im. Era. . Im. . Im. . Im. . Im. Bessel 346 B. A. C 2084 B. A. C 6550 i> Tauri Im. . Im. . ill Tauri l> Tauri Im. . Im. . Im. . Em. . Im. . Im. . Im. . Im. . Im. . B. A. C. . . ... 5573 B. A. C 3017 B. A. C. . . . . 678 f Ophiuchi 58 Ophiuchi Lo 4b. 42m. 348. 16 Probable 922 Making each result from occultation equivalent to two from moon culminations, and then combining the partial determinations by the two methods with weights proportioned to their respective numbers, we have for the adopted longitude of Santiago west of Greenwich 4" 42m 33-.81. DIFFERENTIAL OBSERVATIONS. MODE OF OBSERVING. A siderial chronometer was used in the differential observations. It was compared with the clock immediately before or after the series, though more frequently after the series for the evening was completed. When the lamps were lighted, and the amount of illumination properly diminished, the telescope was directed approximately to the place of the planet, its declination circle clamped, and the relative place of the proper comparing star ascertained by inspection of the map and ephemeris. The instrument was then moved by the slow motion screws so that each object should pass equidistant from the centre of the field. Moving the micrometer screw so that its wire would nearly coincide with the object first in right ascension, the telescope was then turned to the west by the tangent screw to the hour circle until the first object to be observed was just without the field. It remained immoveable in this position until the transits and difference of declination of the two had been recorded, after which, it was again thrown to the west, and so Hi INTRODUCTION TO THK continually until tht work fur the ni^ht terminated. Except in cases where the two objects were so near in right ascension, or the apace through which it was necessary to turn the screw was so great that one reading was, of necessity, after the second object had passed that wire, the difference of declination was measured by two independent readings of the micro- meter when bisecting the star or tangent to the limb of the planet at transit over the middle wire. The observation was always perfected by turning the micrometer in the order of the number on its divided head and which was against the spring within the box. On one or, perhaps, two occasions this space was so great and the difference of right ascension so little, that it was indispensable to use both the slow motion screw of the declination circle and the micrometer. As would be inferred, these observations are not at all satipfactory. To eliminate errors of irradiation and assumed semi-diameters, on all possible occasions the oiii-ecutivc observations were of opposite limbs of the planet. i.XI'LAXATIOX OF THK I'!;1NIKH (USSKUVATIUNS Observations with the equatorial. The printed observations, pages 2 — 305, require very little explanation. The first column of each page contains the numbers for reference, with occasional itjilic letters, a, 6, c, &c., indicating a note in the remarks accompanying each night's observations. The second column contains the name of the planet, and the catalogue from which the com- paring star has been selected. N.P ; N.F ; S.P ; S.F, designate _the limbs of the former ; Rumker, 1673, refers to his " MUtlere Oerter von 12.000 Fix-Sternen ;" Bessel, 405, refers to the 405th zone of Be^sel ; H.C. to the " Histoire Celeste "*of Lalande ; and W. C., to unpub- lished observations of the Washington Catalogue. The five following columns contain the seconds of observation over the five wires of the equa- torial, and the eighth column, the mean of these times. Broken observations have been reduced by means of the following equatorial intervals multiplied by the Secant of the declination of the object. The intervals were deduced from 100 transits of comparison stars. Equatorial intervals. From December From October 10,1849,10 19,1650,10 January 31, I860. Feb'ry 10, 1851. From DVcfiintxr 16, 1851, to January >> 1«*M. From January 1 to8rpl.njl.ir 13, 1859. «. A. . . . +23 690 , +33.687 +11.899 — 0.009 —11.818 -93.743 i. +113.705 +11.797 — 0.096 —11.736 -83.553 i. +33.553 +11.778 — 0.093 —11.758 -33.SM B + 1I.C01 C 0.015 D ! —19.013 E 33.429 Column 9 contains the distance of the limb of the planet or star from the stationary horizontal wire expressed in revolutions of the micrometer head. In both series of observations on Mars, and in the first Venus series + signifies that the moveable wire is to the north of the stationary wire, ami vice versa. Prior to the second Venus series the micrometer was turned 180°, so that throughout these observations the symbols have the opposite signification. Column 10 contains the difference of right ascension between the planet's observed limb and the star, at transit of the former over the imaginary central wire of the system. Column 11 contains their difference of declination expressed in revolutions of the micrometer -f- signifying that the planet is to the north of the star, and vice versa. Columns 12, 1U, and 14 contain the barometer and thermometer readings usually noted at the commencement and close of the observations. Remarks respecting the condition of the atmosphere or other influence likely to affect the SANTIAGO OBSERVATIONS. Ku work follow each night's observations, and thea the results derivable prior to a final discussion of the series. These latter embrace the means of all the observations of each limb of the planet combined in groups according to the periods of time through which they extend ; the chrono- meter corrections and true siderial times of observation at Santiago, and, finally, the diameters deduced from the transits and rnicrometrical measures. In the latter, the variation of the i ., f Declination, ) / Right ascension \ Curing tne interval between the means of the times of observation of the two limbs has been computed from the " variation of \ g.t ascension> I jn one hour ( Declination, ) of longitude" given in the Nautical Almanac. Finally, to facilitate comparison with corresponding observations at other stations, the differ- ential refraction (A^) for each of the means of the times has been computed from the formulae in Vol. I, Bessel's Untersuchungen. Tan N = Cos r0 cot p— Latitude, Sin M = Sin r0 cos

!>r\ Til TIIK Stars with which Mara was compared in 1851-'52. Bur. No. of ob- •enrat'u. Approximate rijl.la.- No. of ob •M0 Meu declination, 1860-4. H. c 1*937 A, m. i. 8 10 35 8 1395 8 1693 8 1851 89899 83098 8 3519 8 34 57 8 40 33 8 44 15 846 13 8 47 41 850 40 8M98 854 2 8 58 31 8 58 53 8 59 42 9 4 49 9 4 43 * 9 8 38 9 1036 9 19 32 a •j i i i I 9 1 9 9 1 1 1 2 9 9 9 1 1 1 9 1 • / // +24 36 98.64 *4 97 55.79 94 9335.60 94 0 9.08 93 44 0.00 23 42 44.75 93 1'J 93 1 37.42 93 45 34.37 92 54 45.86 99 90 59.44 92 1399.11 91 42 95.97 92 0 30.67 21 32 18.63 91 4 30.04 21 9 97.90 21 97 30.30 20 :« 43.67 20 37 IS. 35 20 13 37.41 90 0 27.99 +19 40 52.63 \\' <• BMM) 344 H. C. .... 16464 Bevel 344 \f c BnnM-l . . . 344 w. c Iliail 344 Bevrl 276 Bevel 278 Bevel 978 B«tMl 978 Bevrl 978 Brael 978 Bevel 975 Bevel 275 Beoel .... 978 Bnwl 973 Bevel 975 we . .... w. c B. A. C 3181 Tin' right ucriuioni were otxenred by Proreiwor Alexander Lawrencp, IT. 8. N., with the wont transit imminent, and the declination! by Profnuor M. Yarnall, U. B. X., witli Uie mural cirrlf. Column 13 contains the initials of the observers names : G — Gilliss ; M — MacRae ; P — Phelps. The transcripts and reductions were made by Lieut. R. N. Stembel, U. S. N., by whom, also, the proof sheets were collated with the original records. Horizontal and vertical diameters deduced from the observations and compared with the Nautical Almanac tables, pages 333—341. The horizontal diameter of Mars, from observations with the equatorial, is found by obtaining the mean interval between the transit of each of the limbs and the comparing star for the night, together with the mean of the times of transit of the limbs, and applying to the arc equivalent of the difference of the former the variation of the planet in right ascension during the period embraced by the latter. As the observations were made only near the opposition of Mars, no correction has been applied for defective illumination of either limb. In the same manner the vertical diameters are deduced by comparison of the differential declinations of the planet's limbs and star, increased or diminished by the variation of declina- tion in the interval between the means of the times at which the measures were made. To the result, a further correction is applied for thickness of the micrometer wire. The mean apparent error of the Nautical Almanac, resulting from a comparison of each night's observation with ita tabulated diameters, is : SANTIAGO OBSERVATIONS. Ivii Planet Mars. No. of ob- servations. Horizontal diameter. No. of ob- servations. Vertical diameter. Series 18-I9-'50 54 . // —2.349 55 /; —9 862 Series 1851-'5S 77 —1.504 81 —0.379 131 — 1 926 136 1 620 The vertical diameters of Venus have been obtained in three modes : first, as were those of Mars, just explained ; second, by direct measurement with the micrometer screw of the equatorial ; and third, by the micrometer screw of the meridian circle whilst passing the field of that instru- ment. The magnifying power of the equatorial generally used was 150, sometimes 235 ; that of the meridian circle more frequently 144, though occasionally no more than 79. No correction has been applied to measurements with the latter instrument for thickness of the micrometer wire. A mean of the separate results from the several methods is 'as follows : Planet Venus. No. of ob- servations. Meridian circle. No. of ob- servations. Equatorial direct measure. No. of ob- servations. Equatorial in- ferred. Series of 1650-'51 . . . 35 // 1 174 10 // — 0 965 4 11 —1.268 45 1.505 8 —2.055 26 —1.383 Mean of . . 80 — 1.340 18 —1.510 30 —1.325 The corresponding observations made at other observatories, and communicated in accordance with the solicitation contained in the ephemeris referred to, pages xxviii, xxix, have also been printed at length in subsequent pages. Believing that a discussion of the solar parallax from observations thus made, by one thoroughly competent yet wholly uncommitted respecting the comparative value of the deduci- ble result, would be appreciated and approved by astronomers, Dr. B. A. GOULD, Jr., was solicited to undertake the task, and, having very considerately consented to do so, all the MS. sheets, as prepared for the printer, were placed in his hands during the month of June, 1855. J. M. G. WASHINGTON, January 1, 1856. 1° THE SOLAK PARALLAX, DEDUCED FROM OBSERVATIONS OF THE U. S. N. ASTRONOMICAL EXPEDITION, UNDER LIEUTENANT J. M.GILLISS, B. A. GOULD, JR. THE SOLAR PARALLAX. H. INTRODUCTORY AND HISTORICAL. The motives which prompted the observations forming the hasis of this discussion have been so fully developed by the astronomer under whose direction the expedition was conducted, and the method of investigation contemplated has been so thoroughly explained, that no farther consideration of these subjects seems required or appropriate. The measure of the sun's distance has been well called by the Astronomer Royal of England the noblest problem in astronomy, This distance, known or unknown, is, and must ever be, the standard length in which every linear measure of a celestial object beyond the moon is directly or indirectly expressed ; whether it be the distance of a satellite, a comet, or a fixed star ; the dimensions of a planet, or the gauge of a nebula. It is the astronomical unit ; and every stellar distance is only known as a proportional one, until this unit is established. It is, therefore, manifestly the duty of astronomers to flinch from no labor which gives a remote prospect of increasing the precision of our measurement of this fundamental quantity. The materials now presented for the discussion are the fruit of a national expedition, instituted at the advice, and with the approval, of the nation's ablest astronomers. To their attainment three years were dedicated by the zeal of the leader in the enterprise and his unwearied assistants, and astronomers in other lands have contributed. No pains ought to be spared in deducing from them all that they can be made to yield in furtherance of the end for which they were designed. This consideration has been kept steadily in view, and is a sufficient reply to any criticism which may attribute over-refinement to the numerical computations, or too great minuteness to the combinations of the materials under discussion. When Keppler, after extended study of Tycho's observations, arrived not later than 1620, at the conviction* that the solar parallax could not exceed 1', he attributed to the sun a distance more than three times greater than philosophers had previously supposedf, although his own limit was but one-seventh part as remote as we now know that it should have been. He had, in 1609, in his bookj on the motion of Mars, called it difficult to fix the distance more exactly than between 700 and 2,000 semi-diameters of the earth, (corresponding to a parallax between V 45" and 4' 55",) and in his Ephemerides§ for 1617 and 1618, he had supposed the parallax to be 2' 29", according to Tycho Brahe, who deduced it from observations of the moon.|| Peter Criiger, Keppler's intimate friend, upbraided him for removing the sun " to such a huge dis- tance,"! which would destroy the value of all Tycho's tables, after he had himself adopted the Tychonian value in the Ephemeris a few years before ; but Keppler replied** that he had studied the subject with care, and did not hesitate to reduce Tycho's parallax by 1' 40", or two- 0 Epilamt Attronomicc Cbpernicanas, pp. 478-480, 486-490. f KICCIOLI, Almagubtm Nmum, I., 107. TTCHO BBAHE, Proyymn., pp. 97, 415, 463. J De Motibui Stdloe Martit, p. 71. § RICCIOLI, Almag. Nov. I, 108. HAXSCH, EpMce ad 3. KEPPLEBUH, p. 473. ||OtAsnin>i, TTCHO.NIS Vita, p. 102. f IBID. pp. 473-4. CBUOEB to KEPPLEB, 1624, July 15. •"Letter to PETE CRLOEB, 1624, September 9. HANSCU Epitt. p. 455. Ixii INTRODUCTORY AND HISTORICAL. thirds of its whole amount. His estimated distance of the sun was 3,592 earth's semi-diameters,* bat, for the roundness of the number, he adopted 3,600, corresponding to a parallax of 49". Godefridus Wendelinus, (Godfrey Wendelin,) a Belgian astronomer, deduced, in 1647, from morning and evening observations of the moon, f the value of the solar parallax as 15" at the outside, or the distance at least 13,740 terrestrial semi-diameters, and fixed 14,656 of these semi-diameters as the most probable value. Ricciolus, rejecting this comparatively small value, arrived at the conclusion, J in 1665, that a value between 28" and 30" could deviate only by very few seconds from the truth. Bicciolus gives an interesting list of the successively adopted values, § a tabular view of which is as follows, the references having been verified or corrected in all cases where I have access to the originals, which has been generally the case, and in some instances made more complete. Distance of the sun from the centre of the earth, expressed in terrestrial semi-diameters. Authority. M«an dinance. Authority. From Hipparcbui' diu 1479 . 1371) • PnUoalu, (ipofM) 13141 Tlinai, Lib. II., cap XXII. Ed. 8iilig I., 130 [I.] 1168 Almagest, Lib. HI., c, iv.; V., c.XV. ; Maur. Coem. 1168 Clavius, Conun. in Splm-r., p. 915; Barociui Cosmogr. I. 46. Albuefniiu and Alphonso , ... ....... 1107 Albategn, capp. XXVI II. XXX. L. ; Alph. Tabb. 7936 MS. letters to Ricciolua. 1215 1356 Coperaietu, Magintu 1143 Cop. dc Rev. IV., capp. 19, 21 ; Magtn. Nov. Cel, Orb. Theor. I.. Laiuberg, from data of Copernicus, (apogee) 943 cap. 3, II. cap. 24. Michael Meander 1160 Sphara Mundl, p. 124. Mntlioiu 1160 loo. OfTuiiui 1152 Tjrcho and Blancaaua 1150 Tycho, Progymn, (Ed. 1648,) pp. 5, 101, 275, 296, etc. Blancanus Loofomontanui 1- - Spbera Mundi, Lib, X., cup. 1. Astr. Danica p ii., pp. 171,231, 241, 298. Krppler, [3] la Epbemertde* 1768 p. 2. Stella Marti* 1768 Chapter XX \. p. 162 Sulla Norm • . . . 1433 Cap. XVI. Epit. Aitron., (apogee) 3469 Lib. IV., 4S5, 490. Tab. Rndolphin 3381 Precept. 141, p. 96. Tabb., p. 99. Lambergiui, (min. eccentricity) 1499 1460 1906 Anton. Maria de KJieita 9000 Wendeltntu 14656 GanJeo 1308 Mario* BetUnu* 1145 Apiaria Univ. Phil. Math. • Apiar. X. 3490 IIS cited by Riccioliu Biceiohu 7327 Ricriolw, (in round numben) ( Alma* Novum I., 731. [1] 8M LtuiDi-i TraiU d' Mrmomit II. 403, 3. [8] SIM JUne nimjaU Cnuorimu dt die nataU 13. Billig. Plmiiu I, 129. [3] EICCIOLI, Lit. HI, ScAo/. II, p. 111. The next attempts at determining the parallax were those of Cassini and Richer. The latter astronomer was sent by the French Academy to South America for purposes similar to those which prompted in our days this present expedition of Lieutenant Gilliss. His observations were published]] in 1679, after his return, and his declinations of Mars were compared by •Ibid , p. 456. t RIOCIOLI Almaf*hm Novum, I, 109, 731. WEIDLTE Hal. A*r. p. 457. See also his letter GAMINDI Op.amn. VI, 464. t Ktociou Aim. Aw., I, 110, 731, 734. fCf. PuTAica dcpladtu PHbnpkKw* lib. II, cap. 31. Arirtarchus Propos. 7. | OtunaHau alnnamiyna ttpkyritpu, fata en t Ut dt Cayenne, par M. Rionia, Parig, 1679. Also Mtm. dt VAead. Roy. da VII, PI l.p. J33. IXTEODUCTORY AND HISTORICAL. Ixiii Cassini,* with the contemporaneous observations! of himself, Picard, and Roemer, at Paris and Brion, in order to deduce a better value for the parallax. The planet had been compared, both at Cayenne and Paris, with * Aquarii, but Cassini did not succeed in obtaining any good value, farther than deducing an upper limit of 9", if the observations were to be trusted. In 1684, however,:]; Cassini published a memoir revising his computation from the materials and from correspondent observations, 1672, September 5, 9, and 24, deduced as the equatorial horizontal parallax of Mars, 25g-" ± 3", corresponding to a solar parallax of 9". 5 ± 1", or a distance from the earth of 21,600 terrestrial semi-diameters, § and with a possible error of 2,000 or 3,000 semi- diameters. From these values he inferred the true diameter of the sun to be just one hundred times that of the earth. About the same period, Cassini, with Roemer and Sedileau, tried || the method of parallaxes in right-ascension, proposed by Cassini himself, and employed by him to ascertain the distance of the comet of 1680. He proposed, from a comparison of the observed right-ascensions of the celestial body on opposite sides of the meridian, to deduce the amount of its geocentric parallax! but this attempt, though laboriously carried out, was entirely unproductive of satisfactory results. Observations were made at the same time by La Hire,^f but without convincing him that the parallax was sensible, as Lalande infers,** from the fact that La Hire, in his well known tables,ft published in 1687 and 1702, never employed a larger value than 6". Flamsteed, who had been, during the same period, observing in England, fixed the upper imit of the parallax of Mars firstJJ: at 30", and then§§ at 25", so that the solar parallax could not exceed 10", or 21,000 terrestrial semi-diameters. The transit of Mercury, 1677, October 28, was observed at St. Helena by Halley, who ob, tained|||| 45" as the resultant parallax, but attributed but little weight to the determination- preferring a value between 10" and 20". The arguments of Streete in favorllf of a value 15" are cited by Halley with apparent approval, and are very curious. In this connexion, Halley again urged the great advantage of the transits of Venus for the determination of this important quantity,*** as he had already doneftt in 1691. La Caille's astronomical expedition to the Cape of Good Hope took place in 1740. Animated by the encouraging example of Richer, he founded an astronomical shrine in the southern hemisphere, which has since been rendered even more illustrious by the labors of such men as Henderson, Herschel, Fallows, and Maclear, offering an example well deemed worthy of imita- tion by our younger land. La Caille made a large number of observations of the declination of Mars at opposition ; and from a comparison of these with corresponding measurements in the northern hemisphere, extending through about six weeks, deduced the value of the solar parallax as 10". 2. In the succeeding year, 1741, he repeated the investigation, and with a result not essentially different. The mean of four correspondent observations of Venus at her inferior conjunction in 1751 was similarly computed by La Caille, giving 10". 38 as the mean value, and, from the whole seriesJJJ of investigations, he arrived at the conclusion that the horizontal equatorial 0 Recueil d' Observations faitt en plusieurs voyages, SfC., Paris, 1693. Rec. de Mtm. del'Acad. VII, P. 1, pp. 353-6. t Mint, de I'Acad. Roy. da Science*, VII, P. pp. 331, 351. t Mem. de I'Acad. Soy. da Sciences, VIII, p. 55. § Memoires de I'Acad. Roy. des Sciences, VII, p. 115. || Ibid., pp. 105-7. TJ Ibid., p. 111. oo LALANDE, Astron. II, p. 413. f\ LA HIKE, Tabula: Astronomic^, p. 6 ft Phil. Trans. 1672, No. 89, pp. 5118. §§ Phil. Trans. 1673, No. 96, p. 6100, (erroneously printed 6000.) Ill Phil. Trans., No. 193, p. 511. I have not access to Halley's Southern Catalogue of Stars, in which arc given his observations of the transit of Mercury. lfly See LALANDE'S Astronomie, § 1729, II., 409 ; Astron. Carolina, ed. 1661, p. 12 ; ed. 1710, p. 34. oo« Phil. Trans., 1716, p. 454. ttt Phil. Trans. 1673, No. 93, p. 619. t# Mtm.de I'Acad. da Scienca, 1748, 601 ; 1761, 310 ; 1760, 73. See also CASSIKI DB TDTOT, 1760, 292. INTRODUCTORY AND HISTORICAL. parallax of the sun may be assumed as 10J" without danger of an error exceeding 0.-"25, thus attaining* a most remarkable accordance with the results at which Cassini and Flamsteed had arrived in the previous century. About 1760, Tobias Mayer struck out a new path, and deduced a value for the solar parallax by means of the lunar theory. One of the equations for the perturbation in longitude depends on the simple angle between sun and moon, and the coefficient had been, up to that time, determined by the employment of 10". 8, as the amount of the solar parallax, which forms one factor. Mayer, however, comparingf theory with observations, deduced empirically a new value for the coefficient, whence he obtained 7". 8, which determination he esteemed subject to an error of one twenty-fourth part, at the outside, since the co-efficient 1' 55", upon which it depended, could not be in error by more than 5".J The transits of Venus, in 1761 and 1769, had long been awaited by astronomers with intense interest, and were regarded throughout the world as the best means available for accurate determination of the dimensions of the orbit of the earth, and of the value in terrestrial measures of the unit in which celestial measures are necessarily expressed. A concise narration of the efforts made to procure accurate data, and of the materials collected, may be found in the mas- terly and standard discussion of the problem by Encke.§ The English sent|| Maskelyue to St. Helena ; and Mason and Dixon, the same who subse- quently measured the arc of a parallel in America, were destined to Sumatra. Fortunately, they were so much delayed that, in their apprehension lest they might not arrive in season at their appointed station, they decided to observe at the Cape of Good Hope, a more desirable situation, as the event proved. The French Academy sent the astronomer Pingre to the island Rodrigues, a little more than 300 miles from Mauritius, in the Indian ocean. Le Gcntil was to have observed at Pondicherry, but the war deprived him of the means, inasmuch as the ship containing his instruments was captured by the British. Another French astronomer, Chappe was sent by the St. Petersburg Academy of Sciences to Tobolsk, in Siberia, and a Russian astronomer, Rumowski, to Selinghinsk, near Lake Baikal, on the Mongolian frontier. Besides these regularly organized expeditions, astronomers were everywhere on the alert. Not only throughout Europe, but at the missionary stations of southern and eastern Asia, observations of the ingress and egress of the planet were made with all the care and nicety which circum- stances permitted. The various results deduced, there is no need of fully recapitulating here.T They were far from harmonious, and led to much warm controversy, which, indeed, almost assumed the form of a national dispute. Short obtained, by different methods, different results between 8". 47 and 8". 67, and adopted the value 8". 65 as final. In a second memoir he arrived at the values 8".49 and 8".63. Pingre" found, on the other hand, 10".l; Rumowski, 8".33; Hornsby, 9".5 to 10"; Audifredi, ("Dadeius Jiu/us,") 9£". To sum up, the transit of 1761 did not contribute much to our knowledge of the astronomical unit. The transit of 1769 promised better results for many reasons. The uncertainty of the values from the first transit stimulated to the greatest possible effort, which was also insured by the consciousness that more than a century must elapse before another similar opportunity would present itself; and beside all this, the transit itself was, upon the assumption that the most advantageous points for observation would be occupied, (as in fact they were,) still further more favorable than its immediate predecessor. Both ingress and egress were visible at numerous » Mfm. it rAcad. da Sdenca, 1760, 93. t Thmia IAOKT, §50, p. 60. t Ibid., §51, p. 62 { Dii RMtftnumg der Sonnt von der Erdt, mu dm Vauudunlyang von 761, haydtita von J. F. EKOKB, Gotha, 1822. | EVOU, £*tf. d. Same. §5, pp. lf-32. t See, among other*. SHOOT, Phil. Train., 1762, p. 611 ; 1763, 300. Pwoaf:, Mtm. dt rAcad., 1761, pp. 413, 483 ; 1764, p. S3» ; 1765, p. 1. HOMSBT, Phil. Tram., 1763, p. 467. RUMOWSKI, Nova. Omm. Aead. Pdrop. XI, Hiit. p. 41, Htm. pp 483, 487, XII, 676. PLAHMAXI, Ventauk. Akad. Uandl., 1763, 118; 1764, 144. Phil. Trans., 1768, 107. AUDITBIDI, ./new*. yalio 1'araWuu Sularii, Borne, 1765. AuDinuroi, de Sola ParaUaxi, Home, 1786. INTRODUCTORY AND HISTORICAL. Ixv and widely remote points, which was not the case in 1761. Finally, an eclipse of the sun followed close after the transit, affording an excellent opportunity for fixing the longitudes of the places of observation. No exertions were spared by the votaries or protectors of astronomy for obtaining numerous and accurate observations, and as Encke has said,* with as much truth as delicacy, " whatever may be the future judgment as to the actual issue, posterity will never be able to reproach either the astronomers or the governments of that period with having neglected to call sufficiently careful attention to the more important points, or with having failed to further and support scientific efforts with sufficient readiness." No one will deny that the enlightened aid of national resources, and the generous enthusiasm of astronomers, were alike necessary for pro- viding those materials which, in the hands of the illustrious astronomer of Berlin, have furnished the definite value with which the world has been amply content for more than a quarter of a century, and which may not impossibly remain the standard for a quarter of a century to come. The observations and disquisitions called forth by this rare and now peculiarly important phenomenon are far too numerous for full citation. f The chief observations were collected by Lalande in a treatise, J from the abundant works in which they were made public, and these, with such as had been omitted there, are given in full detail in Encke's classic investigation§ of this transit. The value of the parallax found by different astronomers from this transit of Venus are con- fined within much narrower limits than those from the former. The smallest was Planmann's, 8".43 ; the largest Pingre's, 8".81, and Euler's, 8".82 ; Hornsby found 8".78, Lalande 8".50, Lexell 8". 68, Smith 8". 605, Maskelyne 8". 723. The observations were subjected by Ferrer, in 1808, to a discussion, from which he obtained the value 8".615;|| and in 1815 to a very thorough investigation, posthumously published^ in 1832, and giving** 8". 577 ± 0".3 as the result. Meantime, however, had appeared the two books of Encke, already quoted ; the first published in 1822, containing an ample scrutiny of the observations of the transit of 1761, June 6, and deducing the final value 8". 4905 ± 0".607 ; and the second, published in 1824, giving a thorough criticism and discussion of the transit of 1769, June 3. In this latter he determines the amount of certain corrections, necessarily disregarded in the first treatise, and finally adopts the following results as final for the solar parallax. From the transit of 1761 8".5309 ± 0".0623. 1769 8".6030 ± 0".0460. From the two together 8".5776± 0".0370. Connected with the transit of 1769 are some circumstances which, from their historical importance, demand some allusion here. One of the most important points for the accuracy of the determination was the station at Fort Wardoehuus, on Wardoe, an inland in the Arctic ocean, at the northeastern extremity of Norway. To this point the Danish government had sent a clergyman of Vienna, Father Hell, with two assistants, Sainovicz and Borgrewing. Numerous circumstances tended to throw suspicion on Hell's observations, which he had suppressed for nine entire months, regarding which he had repeatedly seemed to prevaricate, and which, when • Vejuudurchgang von 1769, § 1. f Sufficient are the following memoirs: UiTTKMiui SE, Trans. Am. Phil. Soc. I. p. 89. SMITH, Trans. Am. Phil. Soc. I, p. 162. App. p 54. LALANDE, Mtm. de VAcai. 1770, p. 9 ; 1771, p. 776. HORNSBY, Phil. Trans. 1771, p. 574. PlSGRE.Jftm. del' Acad. 1770, p, 558 ; 1772, p. 398. LEXELL, Vetemkaps. Akad. Handl. 1771, pp. 200, 301. MASKELYNE, Phil. Trans. 1768, p. 55; 1769, p. 414. EULER, Phil. Trans. 1772, p. 69. MASKELYNE, Trans. Am. Phil. Soc. I, p. 4. App. p. 1. PLANMANN, Vetewkaps. Akad. Handl. 1772, pp. 183, 358. {LALANCE, Memaire tur U Pottage de V£mu observt le 3 Juin, 1769, Paris ; 1772. § Dor Veraadunhgamj van 1769, &fc., bearbeUet von .1. F. ENCKE, Gotha ; 1824. UProcTAm. Phil. Soc. VI, p. 355. l[Mem. R. Ast. Roc. V, p. 253. oo Mem. R. Ast. Soc. V. pp. 254, 282, 295. K WTBODUCTOBY AND HISTORICAL. submitted to the test of rigorous computation in combination with the rest, exhibited gross dis- cordances. Many riiviiiimtanceB, of which an account will be found in Encke's second treatise? combined to place Father Hell in a very unfavorable light, and several astronomers, prominent among whom was Lalande, did not hesitate to accuse him of having fabricated or changed his observations. Neither do his demeanor at the time, nor his published observations of the eclipse on the next day, tend to diminish the suspicion ;* and the cool investigation! of the case by Encke, after tlje lapse of considerably more than half a century, leaves his observations and his character under a heavy cloud. The long delay prior to making public his results seemed best explicable by his desire to obtain as many other observations as possible, in order subse- quently to give the most plausible figures as his own. Unfortunately for himself, he committed an error in computation, £ which, like that of his counterpart, the Chevalier d'Angos, sufficed, under the rigorous scrutiny of the master Encke, to secure the ultimate detection of the untruth. In the year 1834, ten years after the publication of Encke's second treatise, Prof. Littrow, of Vienna, learned*} that some of the papers of Father Hell were in the possession of an Austrian gentleman, the Baron von Munch- Bellinghausen, into whose hands they had come after the death of his uncle, Baron von Penkler, who had been a zealous admirer and- patron of Father Hell. In the hope of obtaining some clue to the celebrated Wardoehuus observations, Prof. Littrow asked permission to consult them, which was not only readily granted, but furnished occasion for the presentation of all Hell's MSS.'to the Vienna'observatory. Prof. C. L. Littrow entered with care upon the investigation, and was rewarded by the dis- covery of Father Hell's astronomical note-book for the days June 2-4, 1769. Its contents, with other interesting documents, were soon printed, and appeared at the close of the year. They fully corroborate and justify previous suspicions. The chief figures, especially the times of entrance upon the solar disc, had been for the most part erased, and with a darker colored ink. Two other passages, the one relating to the observations of Sainovicz, the other to those of Borgre- wing, had been so thoroughly obliterated, that Prof. Littrow was only able to conjecture the three first letters of the one and the first and last letter of the other. From an investigation of such figures as remained legible and unaltered, he succeeded in finding one observation of the ingress by Borgrewing, and one of the egress by Hell, upon which reliance appears warran table. || The reasons given by Littrow, and unhesitatingly accepted by Encke,T[ are chiefly these. Although, in reply to Lalande, Father Hell had publicly offered to exhibit the original note- book, free from erasures, and giving the observations just as finally published by him, Littrow found both clear and undefaced documents containing the quantities as prepared for publication, and this note-book, which was as manifestly not designed for the press. It contains remarks, notes, and comments, in chronological order ; the hand-writing is unequal and frequently changing, observations never made public are here noted down, together with many jottings and memoranda which could not have been intended for the public. The important observations were chiefly obliterated, with great care and thoroughness, as were also sundry remarks con- cerning them. There can be no doubt that the evidence is sufficient to establish this note-book as being the identical one used at Wardoehuus, and that this establishment of identity discredits the published observations and the truthfulness of Father Hell, but provides few new figures upon which reliance may be placed. Kncke submitted these new-found observations, to careful scrutiny within a few months after their discovery. He found that had Father Hell not altered his observations of the eclipse, the times actually observed and originally recorded would harmonize, but that in his desire to • See SCHEIBKL, AnltHung an Mathmati*),t Bucherkawtniit ; Stuck 4. App. to the 1st preface to 2ci edition. t raoMforipav •*• 1769, pp. 17-20, 24-27. }Abk. d. Btriin. Atad. 1835, p. 305. f BcHUVAcncB, AM. A'achr. XII, p. 71. | P*tr HmLt'f Ban naA Wmdot und idne Btobb. da Vauudurchganyi m John, 1769, von C. L. LITTBOW. Wim ; 1845. f AUt. itr Bairn. Atad., 1835, p. :«>:< INTRODUCTORY AND HISTORICAL. Ixvii publish better observations than he knew how to make, he had changed his record of the moment of commencement, after computing it by means of elements so erroneous that his published value was out by 40". Rejecting all observations which had passed under the revision of Father Hell, except in those isolated instances in which the original notes were decipherable and intel- ligible, Encke redetermined the longitude of Wardoehuus and thus obtained the means of correcting the original equations of condition for the transit of 1769 and solved them anew. This revised computation gave as the value resulting from the transit of 1769, 8".5931 ± 0".0460, being less by 0".01 than the previous determination from the same transit. Combining this, before, with the value given by the transit of 1761, he found the mean value 8".57H6 ± 0".03I70, thus decreasing the former value by the comparatively unimportant amount 0". 00644. This last result has, since 1835, furnished the standard value for the parallax of the sun and corresponding to a mean distance from the earth of 2,406| terrestrial semidiameters or 82 719 316 equatorial miles.* Assuming with Encke,f the Toise de Perou as 6394564 feet, or what is equivalent, 1 statute mile =825 701 toises, Bessel's determination! of the earth's dimensions, according to which the length of a quadrant is 5 131 179.81 toises, and the major semi-axis 3 272 077.14 toises, gives for the earth's mean distance from the sun in statute miles 95 360 000 d= 412 000. In 1824, the same year in which Encke's discussion of the transit of 1769 appeared, Professor Burg, like Mayer before him, deduced§ a value of the parallax from the lunar theory, and urged the employment of this method as capable of affording better results than those which could be anticipated from any other method earlier than the Venus-transit of 1874. Burg's value, resulting, of course, from a lunar theory more refined than was attainable in the time of Mayer, was 8". 62 = ± 0".035. Laplace too, in the same manner, obtained|| the solar parallax from this equation as 26.58 centesimal seconds or 8". 61, a result thoroughly accordant with Encke's determination, and adds, " II est tres remarquable q'un astronome, sans sortir de son observatoire, en comparant seulement ses observations a 1'analyse, cut pu determiner exactement la grandeur et I'aplatissement de la terre, et sa distance au soleil et a la lune; elements dont la connaissance a ete le fruit de longs et penibles voyages dans les deux hemispheres. L'accord des resultats obtenus par ces deux methodes est une des preuves les plus frappantes de la gravitation universelle. ' ' A couple of years previous to the discovery of Father Hell's forgeries, Henderson, at the Cape of Good Hope, had made a series of observations! of declinations of Mars, during the opposition of 1832, which he compared with simultaneous observations at Greenwich, (two instruments, the mural circle by Troughton, and that by Jones,) Cambridge, and Altona. The several resultant values** were 9". 076, 9".343, 8".588, and 9". 028, and the final mean by weightsff gave him 9". 028. All these values are larger than either of Encke's adopted ones, and their great discordance precludes reliance upon any of them. The method proposed by Professor Gerling for obtaining a still closer approximation to the actual value of the solar equatorial parallax has been already developed, with full statements of its relative advantages, both by the astronomer who suggested itJJ and by the one under whose direction the Astronomical Expedition to Chile was organized and carried out.§§ The history o Berlin Attr. Jahrb. 1852, p. 323. f D0^. Jfaas> und Meissen, p. 39. ENCKE, Berl. Ait. Jahrb. 1852, p. 321. % Aitr. Nachr. XIX, 97. § Attr. Nachr. m, pp. 346, 348. || Syitene du Monde, Liv. IV, (Euvrei VI, p. 264. 1[ Aitr. Nachr. X, p. 152. oo Aitr. Nachr. XI, pp. 296, 404. ff Und. p. 404. Monthly Notices R. Astr. Soc. Ill, 39. $ A*r. Nachr. XXV, p. 363, XXVI, p. 195. §§ Introd. to this volume, and A. N. Liviii INTRODUCTORY AND HISTORICAL. of this enterprise has been given by Lieutenant Gilliss in the introduction to the present volume. * It now only remains to make use of the results of the expedition. §2.-GENERAL STATEMENT OF THE PROBLEM. The proof-sheets of the present volume III of the observations of the planets Mars and Venus, constituted the materials placed in my hands by Lieutenant Gilliss for the determination of the best value of the solar parallax which they would afford. The end to which he had devoted so much earnest and self-sacrificing effort, and for which he had labored so zealously through obstacles and disadvantages of almost every description, and the scrupulous care manifestly bestowed by him and the assistant astronomers upon the observations, demanded commensurate exertions for the deduction of the final result — an amount of labor uncontem- plated in the original plan of the observations, and necessarily entailing a delay of several months. The observations of Mars and Venus, made at the Santiago Observatory, by Lieutenant Gilliss, and under his direction, are in perpect conformity with the plan previously laid down, and consist of four series of micrometric comparisons, comprising two oppositions of each planet : The first series for Mars consists of observations on 46 different days, between 1849, Decem- ber 10, and 1850, January 31. The first for Venus contains observations on 51 different days, between 1850, October 19, and 1851, February 10. The second for Mars, observations on 93 days, from 1851, December 16, to 1852, March 15. The second for Venus, on 27 days, from 1852, May 29, to 1852, September 13. Making in all observations upon 217 days, extending over nearly three years. For combinining with these, according to the contemplated method, which requires a com- parison in declination with the same star, upon the same date at a northern observatory, correspondent observations were found as follows : By the Naval Observatory at Washington. Mars, I. series ; nine. Mars, II. series ; two. Venus, I. series ; eight. By the Royal Observatory at Greenwich. Mars, I. series; four. By the Harvard Observatory at Cambridge. Mars, I. series ; Jive. In all, therefore, there were but twenty-eightf correspondent observations for both planets during these three years, eighteen of these being during the first Mars series, and two during the second ; while for Venus, the planet especially selected, there were eight during the first, and none during the second opposition. The details of these correspondent observations are as follows : •B»e A*r. Nad*. XXXI, p. 247, XXXIV, p. 340, XXXVI, p. 77. T Tb« Washington obtanration of 1860, October 19, has been rejected by the advice of Mr. Ferguson. GENERAL STATEMENT OF THE PEOBLEM. Ixix WASHINGTON OBSERVATIONS. Planet. Series. Date. No. of comparisons. Remarks of observer. North limb. South limb. 1849. Mars. .... I. Dec. 12 7 8 Planet disturbed and blazing ; star of comparison scarcely visible. 17 16 22 Three comparisons N. limb good. During remainder, planet blurred and restless. 27 20 22 Comparisons at times quite unsatisfactory. 31 12 13 Observations unsatisfactory. Planet and star blurred and tremulous. 1850. Jan. 9 7 7 Night misty ; star of comparison scarcely visible. 12 6 8 Planet blurred. Interrupted by clouds. 14 2 2 Night very unfavorable. 22 10 11 29 3 3 1850. Veuiu I. Oct. 23 5 4 Disc tremulous, and not measurable within ten seconds. Nov. 1 4 4 Brown haze. 2 8 8 / 10 2 3 Three comparisons good, the rest unsatisfactory. 13 4 4 Night uncommonly fine ; all the circumstances favorable, except the inequality of the external and interior temperatures. 14 4 4 21 10 11 Night clear and serene. 1851. Jan. 15 16 16 Planet nickering and undefined. Man n. 1852. Jan. 24 5 7 Planet indistinct and blazing. Feb. 2 8 8 Toward end of observations planet blurred and uncertain. GREENWICH OBSERVATIONS. No. of comparisons. North limb. South limb. 1849. Mara I. Dec. IS 3 3 27 6 6 1850. Jan. 4 3 3 The star extremely faint and difficult to observe, the limbs of the planet badly defined. 7 3 3 Mara was very tremulous, and the star exceedingly faint. CAMBRIDGE OBSERVATIONS. No. of comparisons. North limb. South limb. 1849. Mara I, Dec. 17 4 0 27 5 0 31 0 4 1850. Jan. 1 9 2 4 4 0 GENERAL STATEMENT OF THE PROBLEM. These are the only observations at hand for combining with the magnificent series of Lieu- tenant Gilliss, according to the method suggested by Professor Gcrling, and contemplated by the expedition. It is impossible to refrain from the expression of deep regret that, from all the observations of the well equipped and richly endowed observatories of the northern hemisphere, so few materials could be found toward rendering available, according to its original purpose, an expedition to which so much labor and enthusiasm had been consecrated, and to which an accomplished observer, already known for the precision of his measurements, had devoted his entire energies during so long a sojourn ; moreover, after the preparation and wide dissemina- tion of ephemerides and charts of the comparison stars for both the planets during the whole period. The deduced corrections to Encke's values of the solar parallax corroborated the inferences deducible from the notes, and made palpable the necessity for a recourse to some other method than the desired one of correspondent observations. These corrections, of which the detailed computations will be given, have been found to result as follows, from the correspondent obser- vations already cited : CORRECTIONS TO ADOPTED SOLAR PARALLAX RESULTING FROM CORRESPONDENT OBSERVATIONS. * I. Washington and Santiago. • Unte. J~. Date. JT. 1841. n 1850. n Mara Dec. 13 +1.445 Oct. 19 + [18.364] ia +9.938 93 + 0.341 17 +0.113 Nov. 1 + 1.914 97 +0.497 9 + 1.051 31 +9.144 10 + 0.930 1850. 13 + 1.936 Man ~ Jan. 9 —9.489 14 + 0.184 19 +0.534 91 — 0.189 14 —0.096 1851. 93 +1.986 Jan. 15 + 0.3T7 ..... + 1.390 1850. Mara . . . Jan. 94 - |. !- • Feb. 9 +0.947 Greenwich and Santiago. Dale. J-. Date. J*. Mara .... 1849. IK. . IS // —0.574 Man 1850. Jan. 4 it —1.587 97 —0.598 7 1.636 III. Cambridge and .Santiago. Date. 4w. Date. J-. 1849. 1850. Mara Dec. 17 —0.069 Mara Jan. 1 +0.917 97 -4.189 4 —0.375 ai +0.148 The large mean error, and striking non-accordance of these results, renders any reliance upon them impossible ; and the only course remaining has been to make use of the largest GENERAL STATEMENT OF THE PROBLEM. possible number of observations of every kind in each hemisphere, and to trust to the accumu- lation of observations for eliminating the inaccuracies due to erroneous assumptions in the adopted positions of the comparison stars, and to the unavoidably large mean error of the meridian declinations. This course has been pursued, and, without any attempt to refute the objections which may fairly be urged, the present discussion aims simply at deducing the best result from the materials at hand, in the hope that whatever be the degree of trustworthiness attributed to the final determination, this discussion may at least claim to have been based upon the best available data, and to afford, for the result of previous research, the always welcome corroboration which is furnished by different observations and different methods of investi- gation. The observations available for this purpose are as follows : At Santiago 55 micrometric comparisons of Mare, I series 89 do. do. II series 79 meridian observations do. II series 56 micrometric comparisons of Venus, I series 72 meridian observations do. I series 37 micrometric comparisons do. II series 46 meridian observations do. II series At Washington 32 micrometric comparisons of Mars, I series 5 do. do. ' II series 16 do. of Venus, I series 6 do. do. II series At Greenwich .... . ... 8 micrometric comparisons of Mars, I series 34 meridian observations do. I series 36 do. do. II series 17 do. of Venus, I scries 17 do. do. II series At the Cape of Good Hope .... 47 micrometric comparisons of Mars, I series 47 meridian observations do. 1 series 46 do. do. II series At Cambridge 19 micrometric comparisons of Mars, I series At Minus 38 meridian observations do. I series At Crncow 16 do. of Venus, II series At KremsmiinJiter 13 do. of Mars, II series At Altona 3 do. of Venus, II series A few of these meridian series have been included up to dates somewhat beyond the proper limits, especially when their reduction showed a mean error sufficiently small to warrant the hope of attaining increased accuracy by their employment. A series consisting of five obser- vations of Mars II. at Cracow, only one of which was within the limits of the Santiago obser- vations, were omitted in consequence of the mean error coming out as over 3". A large part of the Cambridge observations were inapplicable for combination with those at Santiago on account of the observations being confined to a single limb, and still others are incapable of employment on account of the smallness of the comparison star employed, entailing, naturally, an impossibility of identification in any of the catalogues. Observations of right-ascension only are utterly without avail for our purpose. The Greenwich observations were obtained from the annual volumes of the Eoyal Observatory, and are, with few exceptions, solely meridional, conformably to the established usage of the observatory. The only method which remains for making use of these observations to deduce a value of the parallax, is to obtain the declinations of the several comparison stars as well as possible, and with these to endeavor to elicit from the series of differential observations, with equatorial instruments, sufficiently numerous determinations of the planet's declination, at both northern and southern observatories, to authorize the hope that the inaccuracies of the individual star positions may possibly disappear from their combined result. The results of these differential measurements would then be used like determinations of absolute position. The meridian observations at Santiago and Greenwich could be incorporated, with their appropriate weights, so that every observation would be made to contribute to the final result. Ixxii GENERAL STATEMENT OF THE PROBLEM. The problem before us is then to be distinctly understood as follows : The failure of northern observatories to afford the means necessary for rendering the materials accumulated by Lieu- tenant Gilliss, at Santiago, serviceable for their intended purpose, or, indeed, for testing the method contemplated, renders the desired computations impossible, and their expected results unattainable, so far as these relate to the measurement of the parallax, although, of course, of the highest value for such purposes as demand no corresponding observations elsewhere. And what is now proposed is, to combine whatever other contemporaneous observations are at hand with those of Santiago in such manner as to deduce a resulting value for the parallax, without claiming for the results any peculiar pre-eminence, or for the method the advantages which would result from the original plan. Should the value of the solar parallax thus obtained coincide with Professor Encke's value, within the limits indicated by the probable errors, the corroboration thus afforded by a method so widely different, will not be without essential importance ; while, in the event of the resulting value differing from that furnished by the transit of 1769, the questions and investigations to which the discordance would give rise could not fail to be of great usefulness. §3.-METHOD PURSUED. Ephemerides of Mara and Venus being computed for the two oppositions with all the precision which Lindenau's tables permit, the several declinations found at the several observatories are to be compared with the ephemeris after the requisite corrections for defective illumination have been applied. Each of the residuals will then afford an equation containing the following unknown quantities : 1. The aeyii-diameter at the unit of distance, which we call < = f.-Hc, where e, denotes the assumed value. The quantity ( appears only in its function, the apparent semidiameter, or r = lf + t, A denoting, as usual, the distance of the centre of the planet from the centre of the earth, and i denoting any spurious apparent extension of the semidiameter. 2. The irradiation, i, assumed to be of the form • ~ • I J * = £-». + S of which the term t, is peculiar to the observer and the instrument. 3. The correction q for the personal equation of the observer, and for the thickness of the threads of the filar micrometer, the influences of these two sources of error becoming inseparable. 4. The correction // to the adopted value of a revolution of the micrometer-Bcrevt . 6. The correction of the ephemeris in declination (d O = « + 0 r + r t», T being the time elapsed since the epoch T, assumed near the middle of the series. 6. The sun's equatorial horizontal parallax, which we will put .-=». + *», (wt denoting Encke's value 8". 57116,) and which appears only in its function p=kw, where k signifies the ordinary coefficient for the error in parallax dependent upon the declina- tion, the hour-angle, the distance, and the geocentric latitude — t. e., if Who the siderial time. *= sin. f 8-=-^ 5 tan.C = tan. f sec. (6 - a) METHOD PURSUED. Ixxlii Putting the observed declination of the limb = S, the computed declination of the centre = doi and the distance traversed by the micrometer thread = Jm, we have the equation 1 " — ^o === dd = =fc -^ (f0 -j- 8 f -j- t0) -j- a -(- /9 r -f- 7- r2 -|- A; (=-0 -f- ^ ") + /•* ^m ± (t + semi-diameter -^=r METHOD PURSUED. i and analogously, the stars observed apparent declination = d " true " " =da we shall have 3 — d= 8,— da — p ± r + B where B represents the difference of the refractions of the limb and the star, and has always the same sign as r will become or since „ __ t("} — n — 1 ' v \a__I /jM_j, *,-«' -24 ' Since the correction sought is only sensible for the more extended series of comparisons, we may almost uniformly substitute unity for re ' and consequently n— — 1 2/11 -2* This very simple expression shows that for the longest series of comparisons (which extends over about five hours) the factor is very nearly =1 ; but that in other cases it is a real fraction. By simple inspection of the ephemerides^we shall find the maximum values of the second dif- ferences to be Man I. Man 11. Vemu I. I'eniu II. /"(<*) 9".6 14".9 49".9 29".3 ,/"(«) 0 .02 0 .03 0 .09 0 .05 /"(r) 0 .01 0 .01 0 .04 0 .04 The change in the apparent semi-diameter is thus seen to be certainly insensible, and it is also evident that in declination the influence of these second differences can be possibly perceived only in a few particular cases, occurring in the first Fewwf-series. Therefore J8.r — J<: = 2 The only quantity remaining for consideration is/"(p)> which may be directly obtained by differencing the formulas which represent the parallax in declination, as computed for successive hours, and will easily be found to be f"(p) = Z"*1 p cosy1 sin d cos(0 — a) 4 sin9^ 15' _ 8".57116 Substituting this value in the expression above, we obtain finally, ±L which gives the correction applicable to the mean of the observed differences for the mean time T; the declination, hour-angle and distance from the earth being denoted by d, 6 — a, and A; the distance from the center of the terrestrial spheroid and the corrected latitude by (> and Ks AND AUXILIARY i AKI.I -. J-'fifiemerit of Mars for the first series, or opposition of 1849-50. U .i-l.l in. I ..ii ^1 ... ii \ .... ii. 0*1*. a. 8. l0f. -V r. J 10 (I CM Sf h. ^3. Drf. limb lOf. CO* O. sr~*3. 1849. LI*. >. • .( n t. Oct. 30 8 94 13.35 +94 19 38.5 9.8808773 6.42 .99 0 00 p. n. 9.96009 0.47 31 94 44.78 14 51.9 .8574981 6.48 .90 0.00 p. n. .95989 0.47 Nor. 1 95 19.94 17 10.9 .8541918 6.53 .17 0.00 p. n. .95976 0.48 9 95 37.74 19 33.4 .8507588 6.58 .14 O.no p. n. JMI 0.48 3 95 59.14 91 59.7 .6474035 6.60 .19 0.00 p. n. ..,,,;, 0.48 4 98 17.09 9499.9 .8440644 6.68 .11 0.00 p. n. .95934 0.49 5 98 31.49 97 3.9 .8407491 6.73 .08 0.00 p. n. JMI 0 49 < 98 49.37 99 41.8 .8374359 6.78 .05 0.00 p. n. JMI 0.50 7 98 49.81 3993.8 .8341584 6.83 .04 0.00 p. n. .95889 0.50 8 96 53.18 35 9.8 .8309039 6.68 .02 0.00 p. n. .9587* 0.59 9 98 53.08 37 59.6 .8976770 6.94 .99 0.00 p. n. .••:,-:,-, 0.51 10 9849.10 40 53.3 .8944831 6.99 0.96 0.00 p.l .95840 0.51 11 98 41.39 43 50.8 .8913259 7.04 0.93 0.00 p. n. JMI 0.59 M 96 99.83 4659.0 .8182069 7.09 0.90 0.00 p. n. .95805 0 59 13 98 14.39 4956.8 .8151317 • 7.14 0.87 0.00 p. n. .95786 0.59 14 9555.08 53 5.0 .8191049 7.19 0.84 0.00 p. n. JMM 0.53 15 9531.87 58 16.3 .8091978 7.94 0.81 0.00 p. n. .95749 0.53 16 95 4.77 59 30.6 .8069088 7.99 0.78 o.oo p. n. .95730 0.54 17 9433.78 95 9 47.6 .8033490 7.34 0.74 0.00 p. n. .95711 0.54 IS 9358.91 6 7.1 .8005538 7 38 0.70 0.00 p. n. JMI 0.54 19 3390.18 9 28 7 .7978975 7.43 0.68 0.00 p. n. .95671 0.55 90 99 37.81 19 59.0 .7951747 7.47 0.61 0.00 p. .. .95652 0.55 • 91 51.99 16 16.8 .7925995 7.59 0.60 0.00 p. •. .95631 0.55 93 91 1.08 19 42.7 .7901061 7.56 0.57 0.00 p. •. .95611 0.58 23 90 7.99 93 9.1 .7878991 7.60 0.54 0.00 p. i. .95590 0.56 94 19 9.70 9835.6 .7853897 7.63 0.55 0.00 p. i. .96569 0.56 95 18 8.58 30 1.9 .7831613 7.68 0.46 0.00 p. i. .95549 0.57 96 17 3.93 3327.4 .7810394 7.72 0.44 0.00 P •• .95598 0.57 97 1555.83 3551.5 .7790913 7.78 0.39 0.00 p.i. .»5M8 0.57 98 14 44.37 40 13.7 .7771113 7.79 0.36 0.00 p.i. .96481 0.58 • 1399.64 4333.8 .7753134 7.89 0.33 0.00 p. >. .95467 0.58 30 19 11.75 4650.0 .7735317 7.85 0.30 0.00 p. i. .95147 0.58 Dee. 1 1050.81 50 4.6 .7790898 7.88 0.27 0.00 p.i. JMH 0.58 9 998.98 53 14.4 .77(16328 7.91 0.96 0.00 p.i. .964M 0.59 3 8 0.39 56 19.8 .7893945 7.93 0.99 0.00 p.i. JMM 0.59 4 6 31.05 59 19.8 .7681485 7.95 0.90 0.00 p. i. .95370 0.59 6 459.99 98 9 14.3 .7671087 7.97 0.16 0.00 p.i. .95-153 0.59 « 3 95.91 5 9.6 .7682083 7.99 0.13 0.00 p.*. .95335 0.59 7 1 48.94 7 44.3 .7854509 8.00 0.11 0.00 p. «. .95319 0.59 8 6 0 10.74 10 18.8 .7648398 8.01 0.09 0.00 p. .. .£5339 0.60 9 568 30.79 1245.7 .7643774 8.09 0.07 0.00 p. ». j ma 0.60 10 58 49.33 IS 4.6. .7440689 8.03 0.05 0.00 p ». .95279 0.60 11 55 6.59 17 15.9 .7839085 8.03 0.04 0.00 p. «. .'.'., !-:'J 0.60 19 5399.81 19 17.1 .7839066 8.03 0.03 0.00 p. i. ,MMt 0.60 13 51 37.81 91 9.9 .7640617 8.03 0.09 0.00 p. «. .95935 0.60 14 4959.39 99 53.3 .7843747 8.09 0.01 0.00 p... ,95»4 0.60 15 48 6.59 94 97.4 .7848457 8.01 0.01 0.00 p.i. .95914 0 60 H 4690.63 95 59.1 .7854747 8.00 0.00 0.00 p.i. .95905 0.60 17 44 34.76 97 7.4 .7889618 7.99 0.00 0.01 p.i. .95197 0.59 18 49 49.99 98 13.1 .7674085 7.97 0.01 0.00 r. i. ,M1« O.A9 • 41 4.98 99 9.3 .7883075 7.95 0.01 o.oo r. i. .WI84 0.59 90 3990.10 9958.1 .7695631 7.93 0.02 0.00 c. i. .Km 0.59 91 37 38.97 30 33.8 .77U9719 7.90 V.Oi 0.00 r.t. .95176 0.59 • 33 55.07 31 9 6 .7795994 7.87 0.03 0.00 (.*. .95173 0.59 • 34 14.61 31 9-1.8 .7744354 7.84 o.ot 0.00 r.*. .05171 0.53 H 38 35.81 31 34 6 .7780883 7.81 0.05 o.oo r «. .95170 0.58 • 30 58.87 31 39.5 .7780780 7.77 0.08 0.00 r. t. .95170 0.58 • 9193.98 31 34.7 .7809098 7.74 0.07 0.00 r. i. .95170 0.58 97 £9751.13 +96 31 93.6 8.7894749 7.70 0.08 0 00 f. r. 9.95171 O.S7 EPHEMEBIDES AND AUXILIARY TABLES. Ephemeris of Mars for the. first series — Continued. Washington Mean Noon. Ixxix Q S. \no A A h. Dftf limh ^ 1 5 ,i, cl,_ Q lug. __i . . In O. cos. (J, In 8. t'l. limn log. cos 0 . •— r sec 10 1849. A. m. t. • i n // // H S. Dec. 28 5 28 20.84 +26 31 5.8 9.7848713 -7.66 0.09 0.00 f. 8. 9.95173 0.57 29 24 53.94 30 41.6 .7873948 7.62 0.11 0.00 (.S. .95175 0.57 30 23 27.68 30 11.5 .7900411 7.57 0.13 0.00 f. a. .95178 0.56 31 22 5.19 29 36.0 .7928060 7.53 0.15 0.00 f. S. .95181 0.56 1850. Jan. 1 90 45.59 28 55.5 .7956854 7.47 0.17 0.00 f. ». .95185 0.56 2 1938.98 28 10.5 .7986754 7.41 0.19 0.00 f. S. .95190 0.55 3 18 15.47 27 21.5 .8017718 7.36 0.21 0.00 f. 8. .95195 0.55 4 17 5.16 26 28.9 .8049704 7.31 0.23 0.00 f. S. .95201 0.54 5 15 58.12 25 33.3 .8082667 7.35 0.25 0.00 (.a. .95207 0.54 6 14 54.44 24 35.1 .8116564 7.20 0.38 0.00 f. *. .95213 0.54 7 13 54.19 23 34.7 .8151349 7.14 0.30 0.00 f. 8. .95219 0.53 8 12 57.49 22 32.7 .8186977 7.08 0.32 0.00 f. B. .95226 0.53 9 13 4.19 21 29.4 .8333403 7.03 0.34 0.00 f. 8. .95232 0.59 10 11 14.55 3035.3 .8960584 6.96 0.36 0.00 / f. 8. .95239 0.52 11 1098.53 1920.7 .8298474 6.90 0.38 0.00 f. S. .95245 0.51 19 9 46.17 18 16.1 .8337027 6.84 0.40 o.co r. 8. .95252 0.51 13 9 7.49 17 11.9 .8376199 6.78 0.42 . 0.00 f. 8. .95259 0.50 M 833.48 16 8.5 .8415945 6.79 0.45 0.00 f. 8. .95266 0.50 15 8 1.15 15 6.0 .8456223 6.65 0.47 0.00 f. B. .95273 0.49 16 7 33.50 14 4.8 .8496990 6.59 0.49 0.00 f. 8. .95279 0.49 17 7 9.53 13 5.3 .8538203 6.53 0.51 0.00 f. B. .95285 0.48 18 49.2J 12 7.7 .8579620 6.47 0.53 0.00 f. B. .95291 0.48 19 33.53 11 13.2 .8621805 6.41 0.55 0.00 f. s. .95296 0.48 90 19.43 10 18.9 .8664121 8.34 0.57 0.00 (.S. .95302 0.47 91 9.89 927.9 .8706731 6.38 0.59 0.00 f. S. .95308 0.47 93 3.86 8 39.4 .8749601 6.93 0.60 0.00 f. B. .95313 0.46 23 1.30 7 53.6 .8793697 6.16 0.62 0.00 r. n. .95318 0.46 34 2.17 7 10.5 .8835988 6.10 0.63 0.00 r. B. .95322 0.45 95 6.40 6 30.3 .8879446 6.04 0.65 0.00 f. s. .95326 0.45 M 13.94 5 53.6 .8923044 5.98 0.66 0.00 r. B. .95330 0.44 97 634 74 5 17.7 .8966756 5.92 0.67 0.00 t.t. .95333 0.44 98 638.75 4 45.5 .9010558 5.86 0.68 0.00 f. 8. .95336 0.44 99 655.91 4 16 0 .9054437 5.80 0.70 o.oo f. S. .95340 0.43 30 7 16.16 3 49.1 .9098341 5.74 0.71 0.00 r. H. .95343 0.43 31 7 39.44 324.8 .9142280 5.68 0.72 0.00 f. S. .95346 0.42 Feb. 1 8 5.71 3 3.0 .9186225 5.63 0.73 0.00 r. B. .95348 0.42 9 8 34.91 3 43.6 .9230158 5.57 0.74 0.00 f. 8. .95350 0.41 3 9 7.00 3 26.6 .9274063 5.51 0.75 0.00 f. B. .95352 0.41 4 9.41.93 3 11.8 .9317931 5.46 0.76 0.00 f. 8. .95353 0.40 9 5 10 19.62 +96 1 59.1 9.9361730 5.40 0.76 0.00 r. B. 9.95354 0.40 Ixxx KI'HEMERIDES AND AUXILIARY TABLES. Ephemeria of Mara for the second series, or opposition of 185t-.">2. \\ i . h I lluloll •>! . . II N ....M. J h. Out. a. 7.9 .9786755 4.90 0.71 0.03 r. .96021 0.36 19 M 9.97 521.8 .9825666 4.85 0.72 0.03 r. .96043 0.35 90 7 54 51.88 +94 1 30.1 9.9864469 4.81 0.73 0.03 r. 9.96064 0.35 EPHEMERIDE8 AND AUXILIABY TABLES. Ephemeris of Venvsfor the first serves, or inferior conjunction of 1850-51 . u .i-ii i n:.i"ii Mf .in Noon. DM*. a. 3. »«f. A. r. log. co.£. l-S«e3. :-... k. m. i. • i n n >. Oct. 11 16 97 46.09 -95 57 99.9 9.7730178 14.58 9.15389 1.06 17 31 43.11 96 8 35.4 .7683047 14.77 .95313 1.10 IB 35 16.39 19 1S.S .7696301 14.96 .95946 1.11 18 3D 8.57 9999.4 .7568938 15.16 .95183 1.13 90 4958.71 3856.9 .7510955 15.37 .95199 1.15 91 46 46.80 47 56.8 .7459349 15.57 .95065 1.16 99 SO 38.09 9656 94.9 .7393117 15.79 .95011 1.18 93 54 15.03 97 4 18.4 .7333237 16.01 JM 1.90 94 16 57 55.95 11 39.6 .7979767 16.93 .94913 1.99 95 17 1 38.57 18 97.7 .7211644 16.46 .94868 1.93 95 5 6.83 94 49.9 .7149888 16.70 .94898 1.95 97 637.85 30 95.4 .7087498 16.94 .94790 1.97 98 19 5.45 35 35.3 .7094476 17.19 .94756 1.99 • 1599.43 40 19.9 .6960899 17.44 .94796 1.31 30 18 49.60 44 16.3 .6896537 17.70 .94696 1.33 3) 99 5.73 47 51.8 .6831694 17.97 .94675 1.35 NOT. 1 95 17.C1 50 53.8 *• .6766086 18.94 ,MBM 1.38 1 98 95.03 53 24.4 .6699930 18.59 .94638 1.40 3 31 97.74 55 94.0 .6633164 18.81 .94694 1.49 4 34 95.48 56 59.9 .6565798 19.10 .94615 1.44 5 37 18.03 57 51.3 .6497844 19.40 .94608 1.46 6 40 5.11 58 19.5 .6499390 19.71 .94605 1.49 7 49 46.45 58 17.9 .6390245 20.03 .94605 1.51 e 4591.78 5746.8 .6990645 90.35 .94608 1.54 1 47 50.89 56 46.5 .6990548 20.68 .94615 1.56 10 50 13.97 55 17.9 .6149989 21.02 JMM 1.59 11 S3 98.83 53 19.9 .6079008 91.37 .94638 1.61 19 54 37.91 50 59.8 .6007649 91.79 .94655 1.64 13 56 38.10 47 58.1 .5935969 22.08 .94674 1.66 14 1758 31.19 44 35.5 .5864006 m.u .94696 1.69 15 18 0 16.19 40 45.9 .5791847 m si .94729 1.79 16 1 59.80 36 27.2 .5719580 23.21 .94750 1.75 17 3 90.74 31 41.6 .5847297 23.60 .94782 1.77 18 4 39.79 9696.4 .5574940 24.00 .94816 1.80 u 5 49.45 90 47.7 .5509797 24.40 .MM 1.83 90 t 49.65 14 39.5 .5430907 24.81 JM 1.86 91 7 40.07 8 3.7 .5359388 •>.• .94936 1.89 99 8 90.49 97 1 0.1 .5988359 25.63 .:<;'>-• 1.99 93 8 50.67 96 5398.6 .5917964 26.05 .95030 1.95 94 9 10.43 45 99.0 .5148347 96.47 .'»-! 1.98 95 9 19.61 37 1.1 .5079666 98.90 .95135 2.01 • 9 18.07 98 4.6 .5019093 97.32 .95191 9.03 97 9 5.71 1839.0 .4945810 97.74 .95250 9.06 98 8 49.48 96 8 44.0 .4881006 98.16 .95319 2.09 99 8 8.38 95 56 19.3 .4817880 98.57 .95376 9.19 30 7 23.39 47 94.9 .4756649 28.97 .95444 9.14 Dec. 1 697.65 36 0.5 .4697519 29.37 .95513 9.17 9 591.30 94 5.9 .4640717 29.76 .95584 9.19 3 4 4.58 IS 11 41.0 .4586491 30.13 .95659 2.99 4 9 37.7» 945846.1 .4535079 30.49 .95734 9.94 6 18 1 1.31 4591.4 .4486698 30.83 .95813 9.96 6 17 50 15.59 31 97.5 .4441610 31.15 .95894 9.98 7 5791.19 17 5.4 .4400059 31.45 jim 9.30 8 55 18.74 94 9 16.9 .4369959 31.73 .96060 9.39 1 S3 8.97 93 47 1.5 .4398459 31.97 HI n. 9.33 10 SO 53.65 31 93.9 .4996840 39.19 ,. ... 9.34 11 48 30.66 93 15 93.8 .4973616 :••..<- AHH 2.35 19 46 3.94 93 59 S.9 '•'•">:• 33.53 , „ .. " • ' 2.33 13 43 33.59 49 32.7 JMM • ... .96495 2.38 14 41 0.47 95 47.6 .4995813 39.74 .96583 2.38 15 3895.86 99 8 54.6 .4919549 39,79 .96671 9.38 H 17 35 SO. 78 —91 51 58.0 9.4918915 32.80 9.96757 2.38 EPHEMERIDES AND AUXILIARY TABLES. Ephemeris of Venus for the first series — Continued. Washington Mean Noon. Ixxxiii Date. a. 8. log ^ t r. log cos . • i a a i. May 96 79835.95 +94 50 45.1 9.7753113 14.53 9.95781 1.07 97 39 8.09 40 39.3 .7694799 14.73 .95841 1.08 • 3536.08 30 11.6 .7635601 14.93 4 M 1.09 99 3859.96 19 93.0 .7575999 15.14 .95963 1.11 30 49 19.58 94 8 14.5 .7515657 15.35 .96037 1.19 31 45 34.77 93 56 47.1 .7454669 15.57 .96091 1.14 June 1 48 45.40 45 1.9 .739)039 15.79 .96157 1.15 a 51 51.35 3959.7 .7330773 16.01 JHM 1.16 3 54 59.48 90 41.5 .7967881 16.95 .96291 1.18 4 7 57 46.64 93 8 8.5 .7904371 16.49 .96359 1.90 5 8 0 39.69 33 5591.8 .7140953 16.73 .96427 1.91 8 393.47 4999.3 .7075540 16.98 .96496 1.33 7 6 5.84 aa 11.9 .7010949 17.94 .96566 1.34 8 8 40.64 15 49.6 .6944378 17.51 .96635 1.96 9 11 9.79 93 9 18.6 .6877963 17.78 .96704 1.96 10 13 33.90 91 48 39.) .6811017 18.05 .96774 1.30 11 15 50.01 34 53.9 .6743564 18.33 .96844 1.31 13 18 0.88 91 1.1 .6675827 i-.r.-j .96912 1.33 13 90 5.39 91 7 4.9 .6607934 18.99 .96981 1.35 14 99 3.14 9053 3.8 .6538418 19.93 ,t7MI 1.37 IS 9354.15 39 1.9 .6469314 19.53 .97116 1.39 16 95 38.14 94 57.6 .6399869 19.85 jnm 1.41 17 97 14.89 90 10 54.3 .6399807 30.17 .97948 1.43 18 98 44.19 19 56 59.6 .6959704 90.50 .97313 1.45 19 30 5.83 49 53.7 .6189411 90.83 .97377 1.47 90 31 19.58 98 59.0 .6118993 31.17 .97439 1.50 31 39 95.91 15 9.9 .6048594 91.59 .97501 1.59 • 33 23.50 19 1 97.6 .5978088 91.87 .97561 1.54 33 34 11.33 18 47 53.5 .5907778 92.23 .97619 1.57 34 34 51.16 34 29.0 .5837693 92.59 ,mn 1.59 35 35 93.13 21 15.5 .5767938 •.98 .97733 1.61 96 35 43.93 18 8 14.9 .5698634 93.X .97787 1.64 27 3556.38 17 55 96.5 .5699913 93.69 •mm 1.66 98 35 59.33 49 53.8 .5561990 94.07 .:,;-:„, 1.68 99 35 53.63 30 37.3 .5494807 94.44 .97940 1.71 30 35 36.19 18 38.3 .5498739 94.83 .97987 1.73 July 1 35 9.93 17 6 57.9 .5363863 95.19 .98033 1.76 9 34 33.77 16 55 37.4 .5300389 95.56 ,9MM 1.78 3 33 47.75 44 38.0 .5338480 95.93 .98118 1.81 4 33 51.99 34 0.7 .5178354 96.99 .96159 1.83 5 31 46.36 9346.4 .5190909 26.65 .98197 1.85 « 30 31.99 13 5G.O .5084950 96.99 .98333 1.87 7 99 6.71 16 4 30.6 .5010687 97.33 .98968 1.90 8 97 33.09 15 55 30.9 .4959735 97.65 .98300 1.99 9 95 50.69 4« 57.7 .4911613 97.96 .98331 1.94 10 93 59.91 3851.5 .4866534 mi jmm 1.96 11 S3 1.19 31 13.0 .4894704 38.59 .'.'-:<-: 1.97 19 19 55.05 94 3.7 .4786333 98.77 .98411 1.99 13 17 49.06 17 90.9 .4751580 29.00 .98435 9.00 14 1599.95 11 7.9 .4790657 29.31 .98456 9.03 15 19 58.39 5 93.8 .4693791 99.39 .98476 9.03 16 10 99.18 15 0 9.0 .4670919 -."i...:. .98494 2.04 17 7 56.19 14 55 93.5 .4659377 •.M .98510 9.05 • 18 590.09 51 7.9 .4638199 99.77 .MM 9.05 19 *9 49.09 47 19.9 .4898470 99.84 .98537 9.06 90 8 0 9.86 44 1.4 .4693945 ----- .98548 9.06 31 7 57 33.54 41 11.4 .4099553 ,., .. .98557 9.06 99 54 45.03 3849.5 .4696399 -.".' -:. Mm 9.06 93 £9 8.99 3655.9 .4634739 99.80 .98571 9.05 M 4934.98 35 98.0 .4647517 99.71 .98576 9.05 91 7 47 1.90 +143497.1 9.4664665 •-"I.. V.I 9.98580 9.04 EPHEMEEIDES AND AUXILIARY TABLES. Ephemeris of Venus for the second series — Continued. Washington Mean !\ 0011. Date. a. d. log A. r. log cos ^, ir«c,J. 1853. A. m. I. • / // a ». July 36 7 44 38.03 +14 3351.8 9.4686071 29.45 9.98581 2.03 27 42 17.51 33 41.3 .4711603 29.27 .98582 2.03 28 40 3.13 33 54.7 .4741106 29.07 .98581 2.00 29 37 55.60 34 30.9 .4774406 38.85 .98579 1.99 30 35 55.58 35 28.7 .4811314 38.61 .98576 1.97 31 34 3.64 36 47.1 .4851627 28.35 .98572 1.95 Aug. 1 32 20.26 38 24.8 .4895135 28.06 .98567 1.93 2 30 45.89 40 20.5 .4941620 27.76 .98560 1.91 3 29 20.88 42 33.0 .4990861 27.45 .98553 1.89 4 28 5.50 45 0.7 .5042636 27.13 .98545 1.87 5 26 59.96 47 42.2 .5096723 26.79 .98536 1.85 6 26 4.40 50 36.2 .5152906 26.45 .98526 1.82 7 25 18.90 53 41.1 .5210975 26.10 .98516 1.80 8 24 43.50 14 56 55.4 .5270726 25.74 .98505 1.78 9 24 18.18 15 0 17.7 .5331963 25.38 .98493 1.75 10 24 2.85 3 46.3 .5394504 25.01 '.98482 1.73 11 23 57.40 7 19.8 .5458175 24.65 .98470 1.70 12 24 1.69 10 56.8 .5593813 24.29 .98457 1.68 13 24 15.58 14 35.9 .5588265 23.92 .98445 1.65 14 24 38.88 18 15.5 .5654393 23.56 .98432 1.63 15 25 11.38 21 54.2 .5721067 33.20 .98419 1.60 16 25 52.85 25 30.5 .5788168 22.85 .98407 1.58 17 26 43.08 29 3.3 .5855585 22.50 .98395 1.56 18 27 41.78 33 30.9 .5923220 22.15 .98382 1.53 19 28 48.78 35 52.3 .5990984 21.80 .98370 1.51 90 30 3.81 39 6.2 .6058795 21.47 .98359 1.49 21 31 28.69 42 11.3 .6126579 21.13 .98348 1.46 22 32 56.97 45 6.2 .6194266 20.81 .98338 1.44 23 34 34.B4 47 50.1 .6261794 20.49 .98328 1.42 24 35 19.39 50 21.5 .6339106 20.17 .98319 1.40 25 38 10.98 52 39.4 .6396153 19.86 .98310 1.38 26 40 9.17 54 42.8 .6462889 19.56 .98303 1.36 27 42 13.74 56 30.6 .6529273 19.26 .98297 1.34 28 44 24.47 58 1.7 .6595364 18.97 .98291 1.32 29 46 41.14 15 59 15.2 .6660828 18.69 .98287 1.30 30 49 3.55 16 0 10.2 .6725935 18.41 .98284 1.28 31 51 31.47 0 45.7 .6790557 18.14 .98282 1.26 Sept. 1 54 4.70 1 0.9 .6854669 17.87 .98281 1.34 2 56 43.03 0 55.0 .6918250 17.61 .98281 1.33 3 7 59 26.26 16 0 27.3 .6981381 17.36 .98283 1.20 4 8 2 14.19 15 59 37.0 .7043746 17.11 .98285 1.19 5 5 6.69 58 23.4 .7105631 16.87 .98291 1.17 6 8 3.36 56 45.9 .7166935 16.63 .98296 1.15 7 11 4.23 54 43.9 . .7237618 16.40 .98303 1.14 8 14 9.05 52 16.9 .7387702 16.18 .98312 1.13 9 17 17.65 49 24.5 .7347174 15.96 .98322 1.11 10 20 29.84 46 6.1 .7406030 15.74 .98334 1 09 11 23 45.47 42 21.4 .7464268 15.53 .98348 1.08 12 27 4.38 38 9.9 .7521888 15.33 .9H362 1.06 13 30 26.41 33 31.3 .7578892 15.13 .98379 1.05 14 33 51.42 28 25.4 .7635283 14.93 .98397 1.03 15 37 19.26 23 52.0 .7691064 14.74 .98416 1.02 16 40 49.80 16 50.7 .7746240 14.56 .98437 1.01 17 8 44 22.91 +15 10 21.5 9.7800817 14.37 9.98459 0.99 IXXXVJ EI'IIKMEKIUES AND AUXILIARY TABLES The defect of illumination in right-ascension and declination may be readily obtained upon the admissible assumptions that the planet is spherical and illuminated «by parallel solar rays. We are to compute the corrections to the measurements by a micrometer, the threads of which represent hour and declination-circles, and are tangent to the defective limbs at the points h and d, respectively. The illuminated portion of the planet is separated from the other half by a plane perpendicular to the line from the sun to the planet, and its visible boundary will be projected upon the plane of the apparent disc as a semi-ellipse. The plane is horned or gibbous, according as the planetocentric angle between earth and sun is more or less than 90°; and the unilluminated portion of the solar disc is, in each case, upon that side of the planet from which the sun is more than 180° distant — this geocentric angular distance being counted from the centre of the planet toward either side. Employing r, as heretofore, for the apparent semidiameter of the planet, and denoting the semiaxes of the ellipse by a and b, we have r = a. And representing, in the plane triangle Sun-Earth-Planet, the two first angles by the initial letters of the respective bodies, we may assume, without appreciable error, b = r cos (S + E) an expression which gives to the minor semiaxis a negative sign when the visible ellipse is unilluminated — i. e., the planet horned. Denoting now the geocentric longitude, right-ascension, and declination of the sun, by L,A,D, the geocentric right-ascension and declination of the planet by a, 8 the heliocentric longitude and latitude " " ^, /9 all of which quantities may be directly taken from the ephemerides — we have the equations cos S=. — cos ,9 cos (A — L) cos E = sin d sin D -\- cos d cos D cos (a — A) sin E co&p = — cos d sin D -\- sin d cos D cos (a — A) sin E sin p = — cos D sin (a — A) It is evident that the angle p is equal to the angle made with the semiaxis a by the tangent at d, or to the complement of that made by the tangent at h. The first equation may also be written S=I80° + L — /I + 2 sin2^ £ cotg (L — /) and of the three angles S, E, p, the first two determine the magnitude of the ellipse, and never exceed 180°, while the last, counted like other angles of position from north through east round to the semiaxis b, fixes its position. A convenient mode of computing the angles E &udp is afforded by the employment of auxili- ary quantities g and G ; so that g sin G = cos D cos (a — A) g cos G = sin D te _ cos D sin (a— A) cotg E = tan (G + d) cos p. The general expression for the tangent of the angle included between a tangent to the ellipse and its major axis is /, V* D*y=-*r oay and the distance between the centre of the ellipse and the point where this tangent intersects the major axis is — Hence we have x 7 2 nj at the point h ................. cotgp = — . - oa i/ at the point d... tan p = as y" EPHEMEREDES AND AUXILIARY TABLES. and transforming to oblique coordinates xl and yl parallel to the hour and declination circles, a a2 • yi = ' ' Sm P' or eliminating x1 and x1' by the equation of the ellipse a2 62 = 62 a? -\- a2 ya xf = a2 cos2 p + i2 sin2 j>. 2/,2 — a2 sin2^) -f- 52 cos2 p. in which the substitution of the values a = r, b = cos ($ + E) give »! = rVl — sin2 J9 sin2 (S + E) y, = rVl — cos2 _p sin2 (S + £) which, being subtracted from the semidiameter, give the defect of illumination Ja cos 3 = r — XL = r (1 — V 1 — sin2 p sin2 (£ + E), Jd=r — yl = r(l— V I— cos2 p sin2 (£ + #), For the preliminary correction in parallax we have, as usual, a!-a=-^.Pcos cos y! sin 5 cos (tf — a) — p sin x cos d x1 sin ^ v ___ ____cos(^-a) It is very convenient to make use of auxiliary tables for these values, at least in the case of series so extended as the Santiago observations ; we, therefore, write a — a! = A sin (6 — a) d — ff = D + E cos (0 — a) and construct tables of A =. - - -: D = — — - — : E= - -. and for meridian observa- A cos d A A tions D + E= — !"JL£ sin (/ — d) ) \ EPHEMEBIDES AND AUXILIARY TABLES. Parallax-tables for Santiago. Wuhlnfton Noon. ^ D. *,.* D+E. 1849.-D«e. 7 78 +7'.936 0-73398 + 12.65 8 .13703 7.944 0.73456 12.67 t. ' 5 109 g 9 .13765 r.M 0.73565 12.69 \'< 3 'Mi l 10 .13611 7.859 0.73655 12.70 .,., 0 71 l 11 .13840 7.959 -2 0.73796 £ 12.71 19 .13859 _ 7.250 0.73778 • ' 19.79 _ 13 .13848 7.945 0.73810 12.79 91 7 13 i 14 .13897 0.73833 - 12.71 37 g 7 • 15 .13790 0.73816 12.70 Iff 19 07 i 16 .13735 7.917 0.73789 ** 12.69 17 .,3664 7.203 » 0.73749 12.67 -- 17 ,-,- •i 18 .13576 7.186 0.73675 12.64 19 .13479 ; 7.167 0.73589 12.61 90 .13359 7.145 \ 0.73483 106 3 12.58 21 .13915 137 7.1-J1 0.73358 125 19.54 99 .13069 ; 7.095 « 0.73215 li3 19.49 93 .19894 •S.067 ! 0.73053 12.44 * 24 .19710 7.036 ' 0.79873 18° • 19.39 II .12512 7.004 0.79676 197 12.33 II 19999 ' 6.970 ' 0.79461 12.97 27 .'l2071 *" 6934 X 0.79330 ' 19.91 •J- .11829 ! 6 898 * 0.71963 ' 7 12.14 39 Bfl 7 29 .11574 ~~ 6.857 0.71790 "* 12.07 30 .11306 ' 6.816 0.71443 ! 7 12.00 31 .11096 ' 6.773 « 0.7,151 ' o 11.92 1850.— J»n. 1 .10734 ' t.m 0.70846 ; 8 11.84 9 .10430 6.684 « 0.70528 ; 11.76 315 til g 3 .10115 „* 6.637 0.70197 11.67 4 09790 ^ tjm 0.69655 «« g 11.58 5 .09455 ' 6.540 ; 0.69502 » g 11.49 345 %4 6 09110 6.490 ' 0.69138 ; 11.40 7 08756 *« 6.439 '' 0.68765 11. ai 363 "i- i g 8 06393 6.388 ' 0.68389 ' 11.99 V HI 1 .08099 ; 6.336 0.67991 11.12 ;i- - •B 10 07644 I.HI ' 0.67592 11.02 11 07258 m MM 0.67185 m g 10.93 19 06866 6.175 ' 0.66773 lo.ss ; :M- 419 13 06468 6.120 ' 0.66353 10.73 14 06064 «* 6.065 : 0.65998 ' 10.63 '° 55 i p i 15 OJ654 6.010 MMI .". 10.53 414 55 16 05910 5.955 0.65065 10.43 ; 55 437 17 04891 4!H 5.900 0.64698 10.33 18 04399 5.844 ; 0.84187 10.23 19 03974 5.788 [ 0.63743 10.13 10 i ' 55 ; ;(; 90 03545 5.733 0.63297 10.03 55 440 91 03114 5.678 0.69849 9.93 92 434 09880 5.693 ; 0.62400 9.83 55 451 10 23 09944 MM 0.61948 9.73 437 55 94 01807 5.513 0 61496 9.83 ;::* 4M 25 01368 5.459 ' 0.61046 9-54 10 98 00996 5.405 ' 0.60594 9.44 .]-, i g 97 00487 5.351 0.60149 9.35 53 459 •'- 1.00046 5.998 0.59690 9.95 53 99 0.99605 5.945 ~~ 0.59939 9.16 9 30 0.99163 5.193 , 0.58788 9.06 31 0.96791 5.141 0.58338 «° 8.97 9 Feb. 1 ••— £ 5-°W 51 0.5788, - 8.88 9 0.97838 5.038 0.57441 8.79 441 51 i tf'i g 3 0.97387 4.967 O.S699S 8.70 4 5 0.96957 £ 0.96517 4.937 +4.688 ••"" ^ 0.56107 8.61 8.53 EPHEMERIDES AND AUXILIARY TABLES. Parallax tables for Santiago. Ixxxix Alar g II. Washington Noon log. A. D. - log. E. D+E. 1851. Dec. 12 0.96809 ' 43 0.467!2 u +8.34 13 °-97171 362 5.455 0.47135 8.42 14 0.97533 5.498 0.47564 8,49 362 4.% 7 U 097895 . 5.541 0.48000 8.56 360 43 441 16 0.98255 5.584 0.48441 8.64 17 0.98613 f 5.627 0.48888 7 8.71 357 42 452 7 18 0.98970 , 5.669 0.493-10 8.78 355 43 457 g 19 0.99325 5.712 0.49797 8.86 352 42 a 90 0.99677 0 50259 8.94 350 42 ' 7 21 1.00027 5.796 0.50725 9.01 346 41 469 8 22 1.00373 , 5.837 0.51194 9.09 343 41 472 7 23 1.00716 5.878 0.51666 9.16 339 41 474 8 94 1.01055 . 5.919 "• 0.52140 _, 9.24 25 1.01390 **« 5.959 ] 0.52616 8 9.32 330 39 477 7 96 1.01720 , 5.998 0.53093 9.39 325 38 ft 97 1.02045 6.036 0.53570 4TJ / 9.47 319 37 476 f '••" - 98 1.02364 6.073 , 0.54046 . 9.54 99 1.02677 6.109 ' 0.54521 47S 8 9.62 307 36 473 7 30 1.02984 6.145 0.54994 9.69 300 35 470 a 31 1.03284 , 6.180 0.55464 9.77 , 18S2. Jan. 1 1.03577 6.213 ' 0.55931 9.84 2 285 1.03862 , 6.245 * 0.56393 « 7 9.91 277 31 457 7 3 1.04139 6.276 0.56850 9.98 368 29 451 4 1.04407 6.305 0 57301 10.05 259 28 1 1 1 6 5 1.04666 6.333 0.57745 10.11 250 26 436 7 f 1.04916 6.359 0.58181 10.18 239 25 427 • 7 1.05155 6.384 0.58608 10.24 229 24 418 6 8 1.05384 , 6.408 0.59026 10.30 218 22 407 6 9 1.05602 6.430 0.59433 10 36 206 20 396 fi 10 1.05808 6.450 0.59829 10.42 195 383 5 11 1.06003 6.468 0.60212 10.47 189 16 370 5 19 1.06185 6.484 0.60582 10.52 13 1.06355 ™ 6.498 " 0.60939 ' 5 10.57 157 12 342 4 14 1.06512 6.510 0.61281 10.61 15 1.06655 6.520 10 0.61607 10.65 129 310 4 16 1.06784 6.528 0.61917 10.69 115 292 3 17 1.06899 6.534 0.62209 10.72 101 4 274 3 18 1.07000 6.538 0.624S3 ' 10.75 86 1 257 3 19 1.07088 6.539 0.62740 10.78 71 0 238 2 90 1.07157 6.539 — 0.62978 ' 10.80 55 3 218 2 91 1.07212 6.536 0.63196 10.82 40 5 199 2 92 1.07252 6.531 0.63395 10.84 24 7 178 23 1.07276 6.524 0.63573 10.85 8 9 157 0 94 1.07284 _ 6.515 0.63730 10.85 7 12 177 95 1.07277 6.503 i 0.63867 10.86 — 23 14 116 1 36 1.07254 6.489 0.63983 10.85 39 16 94 0 97 1.07215 6.473 0.64077 10.85 55 17 73 1 98 1.07160 6.456 0.64150 II). MI 70 19 12 2 99 1.07090 6.437 0.64202 10.82 86 21 31 9 30 1.07004 6.416 0.64233 10.80 101 23 9 2 31 1.06903 6.393 0.64242 _ 10.78 116 25 11 2 Feb. 1 1.06787 6.368 0.64231 10.76 130 26 32 3 2 1.06657 6.342 0.64199 10.73 145 28 tin 4 3 1.06512 : 6.314 0.64147 10.69 159 30 72 3 4 1.06353 6.284 0.64075 10.66 173 31 92 4 S 1.08180 : 6.253 0.63983 10.62 186 33 111 5 6 1.05994 6.220 0.63872 10.57 200 34 7 213 6.186 * 0.63742 ™ 10.52 ] 8 1.05581 6.151 0.63594 10.48 225 36 166 9 1.05356 6.115 0.63428 10.42 237 38 184 5 10 1.05119 949 +6'077 38 0.63244 201 +10.37 N° EPHEMKRIDE.S AND AUXILIARY TABLES. Parallax toilet for Santiago. Man II— Continued. Wuhinfton Noon. lo»..4. 0. lo,. £. D+K. M , " 38 901 " 6 18M. Kb. 11 .04870 ; +8.039 ^ o'S2 9'7 +10.31 19 .04610 6 000 10.9S 971 40 13 .04330 . - • 0.63599 ' 10.19 . ... . 41 I 1 7 14 .04057 5.919 0.03343 10. ia . -.. 9M 7 15 .03765 . .. P . 10.05 . 301 » 7 16 .03464 0.61800 •*" 310 43 7 17 .03154 ! 5.793 0.61508 ; 9.91 44 305 7 18 09835 5.748 0.61203 9.84 . : •", 44 318 7 19 •08we ™ 5.704 « °-M88S 330 '•" 8 90 .09173 , 5.660 0.60555 342 44 91 .01831 5.616 0.60914 1 • ; 45 359 99 .01489 ; 5.571 0.59869 , 9.54 45 363 8 93 0119ft 5.596 0.59499 36, 45 379 8 94 -00765 367 5.48, 0.59197 •" 8 95 .00398 • ^ 0.58745 ' .30 379 45 390 8 96 .00096 5.391 0.58355 .29 97 •— » < 5.346 • 1 0.57858 •'< • °-M9$8 » 5.30, 0.57549 M 8 99 MM. 1 °-l>8883 388 0.98495 £ 5.256 5.211 0.57135 0.58714 8.98 8.90 9 0.98103 5.167 « O.M986 8.89 3 0.97708 ' 5.193 0.55859 8.74 , M 44 8 4 0.97310 5.079 « 0.55413 8.66 5 0.96910 5.035 0.54968 8.58 409 43 450 8 6 0.96508 0.54518 8.50 43 455 8 7 8 0.96104 o'Z ~ 4.949 4.906 ^ 0.54063 0.53604 8.49 8.34 9 0.53140 8.96 , 42 468 8 10 0.94883 4-839 « 0.59879 8.18 11 0.94474 4.780 0.52901 ' 8.11 19 ^^ 410 4.739 0.51796 8.03 13 0:93654 41° 4.698 « 0.51247 7.95 » 411 40 !• 7 14 0.93343 4.658 0.50765 7.88 40 -.> 8 15 16 ::Z ;;; 4.6,8 4.579 0.50280 °'<™ « 7.80 7.73 17 0.990,0 Jj 4.540 0.49303 18 0.91599 4.501 0.48810 7« 7 38 495 , 8 19 7.50 498 7 90 0 90779 4 425 0.47817 7.43 J;,'l 37 499 7 91 0.90370 +4.388 0.4731S +7.36 EPHEMERIDES AND AUXILIARY TABLES. ParaUax tables far Santiago. XCl Venus I. Washington Noon. log .4. D. log. E. »* 1850. Oct. 16 ' ' 3 630 +7"107 81 nO.72213 +1-83 17 1.13345 7.188. nO.73064 , 1.81 634 83 841 2 18 1.13979 7.271 nO. 73905 1.79 637 86 831 2 19 1.14616 7.357 nO. 74736 1.77 640 89 821 2 30 1.15256 7.446 nO. 75557 1.75 643 91 812 1 21 1.15899 7.537 nO.76369 1.74 647 803 0 22 1.16546 7.631 nO.77172 1.72 650 97 795 1 23 1.17196 7.728 nO.77967 1.71 652 100 786 1 34 1.17848 7.828 . nO.78753 1.70 655 103 778 1 25 1.18503 7.931 nO. 79531 1.69 659 106 771 1 26 1.19162 8.037 nO. 80302 1.68 662 109 763 n 27 1.19824 8.146 nO.81065 1.68 664 119 755 n 28 1.20488 8.258 nO.81820 1.68 _ 667 116 748 0 29 1.21155 8.374 nO. 83568 1.68 670 120 741 n 30 1.21825 8.494 nO.83309 1.68 673 123 735 i 31 1.22498 8.617 nO.84044 , 1.69 675 127 728 / i NOT. 1 1.23173 8.744 nO. 84772 1.70 678 131 722 2 1.23851 8.875 nO.85494 1.72 681 134 715 1 3 1.34532 9.009 nO. 86209 1.73 684 139 709 2 4 1.25216 „„. 9.148 nO.86918 1.75 686 143 702 2 5 1.35902 9.291 nO.87620 1.77 688 696 C 1.36590 9.438 nO. 88316 1.80 691 151 690 3 7 1.27281 9.589 nO.89006 1.83 693 156 684 3 8 1.27974 9.745 nO. 89690 1.86 694 160 677 3 9 1.28668 9.905 nO. 90367 1.89 695 165 670 5 10 1.29363 10.070 nO.91037 1.94 697 169 663 4 11 1.30060 10.239 nO. 91700 1.98 697 173 656 5 12 1.30757 10.412 nO. 92356 2.03 •0 178 647 13 1.31455 10.590 nO. 93003 2.08 697 183 639 I 14 1-33152 696 10'773 187 »0.93642 ^ 2.14 15 1.32848 10.960 nO. 94271 3.20 694 191 619 • 16 '•33542 692 U'151 * n0.94890 3.26 17 1.34234 11.347 nO. 95498 3.33 689 200 596 18 1.34923 11.547 nO.98094 2.41 684 203 m 19 1.35607 11.750 nO.96677 2.49 679 207 569 20 1.36386 " ° 310 nO.97246 2.57 21 1.36959 nO.97799 2 66 665 314 536 10 23 1.37624 12.381 nO. 98335 2.76 655 216 517 10 23 1.38279 n0.988S2 4% 2.86 645 219 ii 24 1.38924 12.816 nO.99348 2.97 633 220 474 11 95 1.39557 13.036 nO.99822 3.08 619 222 449 12 96 1.40176 13.258 nl. 00271 3.20 604 222 423 12 97 1.40780 13.480 nl. 00694 3.32 587 222 394 13 38 1.41367 13.702 nl. 01088 3.45 567 221 363 13 *29 1.41934 13.923 nl.01451 3.58 MB . 220 328 14 30 1.42479 14.143 nl.01779 3.72 522 217 292 15 Dec. 1 1.43001 14.360 nl. 02071 3.87 496 213 252 15 3 1.43497 14.573 nl. 02323 4.02 468 208 210 16 3 1.43965 14.781 nl. 02533 4.18 438 203 166 16 4 1.44403 14.984 nl. 02699 4.34 405 195 118 17 5 1.44808 15.179 nl. 02817 4.51 369 187 68 17 6 1.45177 15.366 nl. 02885 4.68 335 177 16 17 7 1.45512 . 15.543 nl. 02901 — 4.85 294 40 8 1.45806 15.709 nl. 02861 5.03 253 154 96 18 9 1.46059 , 15.863 nl. 02765 5.21 140 155 10 1 46268 16.003 nl. 02610 5.38 163 126 215 18 11 1.46433 16.129 nl.02395 5.56 110 275 13 1.46552 16.339 nl. 02120 ' 5.74 71 93 336 17 13 1.46623 16.332 ' nl. 01784 5.91 24 75 398 14 1.46647 16.407 nl. 01386 6.08 25 57 458 . 15 1.46622 16.464 nl. 00938 6.35 16 1.46549 + 16.502 nl. 00412 : + 6.41 122 18 573 xcn EPHEMKKIDE8 AND AUXILIARY TABLES. Parallax tables for Santiago. Vrnii* I— Oominnrd. Wuhlnftoo Nooo. lOf.A D. *rf D+E. 1850. Dec. 17 46497 VB " 18 +10.590 — 99839 573 897 " 15 14 18 !l. 1 316 -, 678 '' 13 19 , M —.98534 6.83 » .•i 12 90 .45780 16.460 " —.97808 «QJT • 305 • i U 31 348 16.409 * -.97040 7'06 o .45197 16.397 -.96939 7.16 33 .44739 ; 16.934 -.95390 ' 7.34 8 ; *, 109 871 7 94 .44313 16.195 — .94519 7.31 461 r . , 6 35 .43859 16.001 —.93694 7.37 495 138 915 4 96 .43357 ;.. -,... — .99709 7.41 151 •M 3 97 .43839 15.719 —.91780 7.44 553 169 '. .n 1 98 .42379 15.550 —.90841 7.45 579 173 •45 0 29 .41700 15.378 -.89896 7.45 -7 609 181 1 ; . 1 30 .41098 15.197 -.88951 7.44 i I ', -•» 943 9 31 .40475 15.008 —.88008 7.49 641 195 937 3 1851. Jut. 1 9 .39834 .39176 UJU »l —.87071 —.86144 77:« s 679 2Q5 915 5 3 .38504 14.407 —.85999 7J| 684 •M 901 6 4 .37890 14.198 —.84398 ; B i.-'i 911 -- i 7 5 .37196 13.987 —.83444 7.16 703 913 -< -. g • .36423 13.774 —.83578 7.08 710 213 847 I 7 .35713 13.561 —.81731 "* 7.00 715 914 10 8 .34996 13.347 —.80904 6.90 719 213 Q 9 .34979 , 13.134 —.80096 . 6.81 213 785 10 10 11 .33557 •a*5B w »•« I , 19.710 —.79313 -.78549 6'71 6.61 910 743 11 19 .39107 13.500 —.77807 6.50 •, ' ; 207 721 11 13 .31383 •0.77086 6.39 H « 701 11 14 .30659 13.088 ; —.76385 6.28 15 .29937 "" 11.886 -.75704 « 6.17 " 719 196 <.' -• 11 16 .99918 . —.75042 6.06 716 I'1. 643 11 17 .38509 11.493 —.74399 5.95 713 199 13 18 .37790 11.301 —.73773 5.83 706 188 •08 11 19 .97083 , 11.113 —.73164 5.73 703 i - , 593 11 90 • : i IOJH —.72571 , 5.61 91 .35681 10.747 18! —.71999 ' 5.50 " r > ' 177 •1 11 99 .94969 10.570 —.71497 5.39 r- . 173 553 11 23 .34303 10.397 . —.70874 5.28 94 i - : .33691 10.297 -.70333 "J 5.18 95 •«•« ™ 10.062 "» —.69809 ' 5.07 » (4 * 162 521 10 9» •*»" £ 9-go° £ "°-68a81 513 4M 0 97 .91615 9.749 -.68768 4.87 i. j. 10 98 .90959 —.68909 ' 4.77 M 150 500 99 .90310 9.438 —.67769 4.68 643 147 30 .19667 —.67968 4.58 143 • 31 Feb. 1 :i™ « !'£ I3e —.66778 —.66991 !« • 136 i- 1 Q 9 .17775 8.873 ; —.65807 4.39 618 139 1- ' g 3 .17157 8.741 —.65395 4.94 619 139 1- ' g 4 .16545 —.64843 4.16 l.lta 4til 5 1593B 8.486 -.64369 ' 4.08 600 7 6 .15339 8.363 -.63880 4.01 v< , 119 484 7 7 580 116 -.63396 « 3.94 8 .14155 8.198 —.63910 3.87 113 9 .13579 ~" 8.015 —.69499 3.81 110 , >•' 7 10 •1S9M 573 7'9°5 108 —.61930 3'74 6 11 .19491 7.797 —.61434 3.68 •H 104 501 6 19 .11853 nO.60933 3.69 564 109 :**• 5 13 .11988 +7.591 —.60437 +3.57 EPHEMERIDES AND AUXILIARY TABLES. Parallax tables for Santiago. xcin \ I Illl, II. Washington Noon. log. J. D. log. JE. D+E. 1852. May 26 27 ™ » + 7.150 7.256 0.70301 0.70608 *" +12.'20 12.34 530 110 302 14 28 1.13231 7.366 0.70910 12.48 29 1.13765 ' 7.478 112 0.71206 *» 12.63 15 540 116 290 15 30 1.14305 7.594 0.71496 12.78 545 119 286 16 31 1.14850 7.713 0.71782 13.94 551 122 280 15 June 1 1.15401 7.835 0.72062 13.09 556 125 275 16 2 1.15957 7.960 0.72337 13.25 3 1.16519 ' 8.089 129 0.72608 2?1 13.41 16 567 132 266 17 4 1.17086 8.221 0.72874 13.58 573 135 261 16 5 1.17659 8.356 0.73135 13.74 578 139 257 17 6 1.18237 8.495 0.73392 13.91 583 143 253 18 7 1.18820 8.638 0.73645 14.09 589 146 249 18 8 1.19409 8.784 0.73894 14.27 595 150 245 18 9 1.20004 8.934 0.74139 "~ 14.45 600 10 1.30604 9.087 0.74380 / 14.63 605 157 237 19 11 1.21209 9.244 0.74617 14.82 13 1.21830 9.405 0.74851 15.01 615 164 230 19 13 1.22435 9.569 0.75081 15.20 620 168 227 20 14 1.23055 9.737 0.75308 15.40 1.-'.". 224 20 15 1.33680 9.909 0.75532 ' 15.60 639 175 221 21 16 1.34309 III. 0"l 0.75753 15.81 ; 179 219 17 1.24943 10.263 0.75972 16.01 *° 183 18 1.35579 0.76188 j 16.22 19 1.36218 10.632 0.76401 16.44 642 22 20 1.36860 10.831 0.76612 ' 16.66 j 31 1.27503 •» ,1.0,4 193 0.76820 m 16.88 ! 33 1.28H7 M4 11.209 195 0.77025 "» 22 17.10 645 198 203 22 33 1.28792 11.407 0.77228 ' 17.32 34 1.29435 M3 11.608 *)1 0.77428 "° 17.56 2" 642 304 197 23 35 1.30077 ^ 11.813 " 0.77625 17.79 194 23 36 1 30716 12.017 0.77819 18.02 634 191 23 37 1.31350 12.223 ' 0.78010 18.25 629 207 23 28 1.31979 12.430 0 78197 18.48 ] 622 208 183 29 1.32601 12.638 0.78380 18.72 ' 613 208 178 23 30 1.33214 12.846 0.78558 18.95 603 207 172 23 July 1 0.78730 19.18 591 167 2 13.259 ' 0.78897 19.41 577 203 23 3 4 :«£ » 13'462 200 13.662 0.79057 ™ 0.79210 19'64 22 19.86 ' 5 1.36090 "» 13.859 197 0.79354 22 20.08 523 in 6 1.36613 14.051 0.79489 20.29 7 1.37114 f' 14.336 « 0.796,4 12S 20.49 " 111 19 8 1.37591 14.415 0.79727 20.68 450 171 101 19 9 1.38041 14.586 0.79828 30.87 10 422 1.38463 14.748 f2 0.79915 OT 17 21.04 392 152 72 17 11 1.38855 14.900 0.79987 31.21 359 141 56 15 19 0.80043 21.36 334 39 13 13 1.39538 , 15.169 0.80082 21.49 387 116 21 12 14 1.39825 , 15.385 0.80103 21.61 250 102 o 10 15 1.40075 15.387 0.80,05 — 21.71 210 88 18 a 16 1.40285 15.475 0.80087 21.80 170 72 40 17 1.40455 15.547 0.80047 21.86 127 56 61 18 1.40582 15.603 0.79986 21.91 H.I 39 84 3 19 1.40667 15.642 0.79902 21.94 41 23 107 o 30 1.40708 - 15.665 0.79795 31.94 - 31 1.40706 15.671 0.79665 31.93 46 11 152 o 22 1.40660 15.660 0.79513 31.90 90 28 175 23 1.40570 15.633 0.79338 21.85 Jj 24 1.40437 15.588 0.79140 21 78 25 1.40*2 17» 15.528 » 0.78919 ' 10 21.68 76 243 ]j 36 1.40046 + 15.452 0.78676 256 90 364 13 XC1V KrilKMKRIIiES AND AUXILIARY TABLES. Parallax tables for Santiago. II— Continued. W-**onN,.,n. ,0,.^. Bt lof.E. D+E. 90 984 " 13 1859. July 97 98 •• .39790 , •39498 m .3(165 +15.369 £E " 0.78419 , 0.78198 i 0.77894 ^ "•'" u 91.14 « 30 31 .38799 ; .38400 M n '" o!n« ^ 90.87 »'™ » 430 150 ' AIM. 1 .37970 «BU£> 159 372 9 .37512 ** ... 485 167 ; -/. ' 2, 3 37027 510 173 399 9 S3 4 5 .35985 | M.1 • 14.043 I79 0.75649 0.75337 ,9.70 ' .35433 ] 13.8M ™ 423 0 74814 »•« « • • ! 7 .34863 ' 13.673 0.74380 19.23 ; i ; • , 8 .34276 13'48a 192 °-73838 ^3 '8-97 „ 9 10 .33675 .33069 ' »:» a94 0.73483 0.73031 K 11 M 194 0.79551 ' 18.22 ; 634 98 19 . 0.72073 194 HI 25 13 31 162 0.71588 17.71 14 -« £ 191 071096 499 ,7.46 * 15 •a8658 « 12-13° » °-705»7 505 17-21 25 16 .98900 11.941 0.70099 16.96 , 187 5,3 24 17 18 19 90 ^^^ 664 .97208 ' .96541 "J « : ;;s ™ 0.-6906, ™ 0.68535 0.68003 16'47 M »•» 24 15.99 » 91 .95874 11 .031 0 67464 15.76 546 23 22 23 " n :i~ lo-B8 no 10.688 »•« » 0.66918 O.G6365 0.65804 15.53 15.30 ».°7 33 95 ,0.358 0.65236 1 1 . BB 660 576 96 27 •-" 99 30 :^ •» •21245 ^ -90594 M .19946 ' 10-19B ,56 » s s 0.64660 0.64076 « 0.63483 0.69881 O.G2270 14.63 14.43 " 14.20 ' »•• 2^ 13.79 644 142 i. "i 30 3, 0.61650 13.59 630 90 S pi. 1 2 '1^95 " ^'^ '« 0.61020 0.60380 "'w " 132 Mi 19 3 .17393 9.046 0.59730 13.00 i - log 66° 19 4 .16765 8.917 0.59068 13.81 i • 125 673 18 5 •;™ 6,9 ••» « 0.58395 M ,3.63 lg 6 7 :!OT •" iS - 0.57710 0.57013 ' ™ \l 115 710 16 8 .14288 12.09 " 113 723 17 9 10 11 19 1 600 •" " 11907 5W •:«" £ ••« m 0-55581 0.54845 0.54095 0.53330 * 1..92 „.,-, "'" ,6 "-*1 16 13 .11321 7.901 0.59550 11.36 99 796 16 14 15 .10738 •"»«' £ .09588 ' 7.809 7-706 » 7.619 0.5,754 0.50943 0.50112 low 16 win 16 . 91 847 15 17 .09091 + 7.521 0.49965 + 10.63 For correcting the Santiago observations for differential refraction we have, using as before, o, 3, a, d, to denote the respective positions of the planet and its comparison-star ; K, the refrac- tion from Bessel's third table, and £ the zenith distance : cos £ = sin n sin (N -j- £) and as a correction for the measured differences, cossd d)= JL sin8 EPHEMERIDES AND AUXILIARY TABLES. XCV in which the auxiliary quantities Ncotg n sin n are taken from the following table, which has heen computed for the latitude of Santiago, and for the hour-angle 0 — a as argument. Table for computation of differential refraction at Santiago. e—a. N. log. cotg n. log. sin n. e—a. N. loj;. cotg n. h. in. « i it h. m. o 0 0 123 26 25 O.WWOO 1 0 124 21.6 ' 9.34477 1 0 1 9 736 1 26 26 7.56122 0.00000 1 23.5 9.35213 3 30104 1 1.9 725 2 26 29 7.86226 9.99999 2 25.4 9.35938 5 17610 2 2.0 714 3 26 34 8.03836 9.999S)7 3 27.4 9.30652 6 12495 2 2.0 703 4 26 40 8.16331 9.99995 4 29.4 9.37355 8 9692 3 2.0 692 5 •-»; i- 8.26023 9.99992 5 31.4 „ 9.38047 10 7920 2 2.0 683 6 26 58 8.33943 9.99990 6 33.4 9.38730 12 6696 4 2.1 673 7 27 10 8.40639 9.99986 7 35.5 „ 9.39403 13 5802 4 2.2 663 8 27 23 8.46441 9.99982 8 37.7 9.40066 16 5118 5 2.1 655 9 27 39 8.51559 9.99977 9 39.8 9.40721 10 »» ••"•» "I 9.99971 10 2.2 42.0 2.2 ••«* £ 11 28 15 * 8.60280 9.99965 ' 11 44.2 9.42004 3782 6 2.3 12 28 36 9.99959 12 46.5 9.49633 3480 8 2.3 13 28 58 ' 8.67542 9.99951 13 48.8 9.43254 25 3222 7 2.3 613 14 2923 8-70764 3001 9.99944 14 ' ' 2.4 9.43867 ^ 15 29 49 8 73765 9.99935 I 15 53.5 9.44472 16 3017 » 8^6573 *» 9.99926 ' 16 55.9 2'4 9.45070 5I 17 3047 f 8.79211 *» 9.99917 17 12458.4 " 9.45660 59° 31 2487 10 2.5 584 18 31 18 8.81698 9.99907 18 125 0.9 9.46244 34 2354 11 2.5 577 19 31 52 8.84052 9.99896 19 3-4 „ 9.46821 35 2233 11 2.5 570 20 3227 2126 9.99885 20 5-9 2.6 9.47391 563 ai 33 4 8.88411 9.99873 21 8.5 „ 9.47954 40 MM 12 2.6 558 22 33 44 8.90437 9.99861 , 22 9.48512 40 13 5.51 23 3424 8.92374 9.99848 33 13.8 „ 9.49063 43 14 24 35 7 8.94230 9.99834 24 16.5 „ 9.49608 * 45 1780 14 2.7 540 35 35 52 8.96010 9.99820 25 19.2 9.50148 46 1711 15 2.8 BB 26 36 38 8.97721 9.99805 26 22.0 „ 9.50681 48 1647 15 2.8 5-27 27 3726 8.99368 9.99790 27 24.8 9.51208 & 50 1588 16 2.8 28 38 16 9.00956 9.99774 38 27.6 „ 9.51731 523 52 1532 16 2.9 517 29 39 8 9.02488 9.99758 29 30.5 „ 9.52248 54 1481 17 2.9 SI 2 30 40 2 9.03969 9.99741 30 33.4 „ 9.52760 55 1433 18 3.0 507 31 4057 9.05402 9.99723 31 36.4 „ 9.53267 58 18 3.0 32 41 55 9.06791 9.99705 32 39.4 9.53769 59 19 3 0 33 4254 9.08137 9.99686 33 42.4 9.54266 49? 61 19 3.1 493 34 4355 nOAAA 1269 - 9.99667 34 3.1 9.54759 487 35 1 1 :," 9.10713 9.99647 35 48.6 „ 9.55246 65 20 3 2 4R3 36 46 3 9.11947 9.99627 36 51.8 , 9.55729 67 1201 21 3.2 470 37 47 10 9.13148 9.99606 37 55.0 9.56208 69 1170 22 3.2 475 38 4819 70 9.14318 9.99584 38 12558.2 9.56683 470 39 4929 9'15457 1,11 9.99562 39 126 1'5 3.3 9.57153 46fi 40 50 42 74 9.16568 9.99539 40 4.8 9.57619 41 51 56 9.17653 9:99516 a 41 3.3 9.58081 * 76 24 3.4 42 43 5319 78 5430 81 js « 9.99492 9.99467 42 43 - *:: 9.58539 * 4^4 9.58993 451 44 55 51 9.20758 9.99442 44 18.4 n 9.59444 82 HI 25 3.5 447 45 46 47 5713 123 58 36 124 0 2 9.21747 9.22716 *9 9.23664 ™ 9-99417 9.99391 9.99364 % 45 46 47 • SB'5 3.6 "•l 3.6 9.59891 9.60334 * 9.60773 « 48 1 30 , 9.24592 9.99336 48 32.7 0 9.61209 90 910 28 3.7 43T 49 3 0 9.25502 9.99308 49 36.4 9.61642 91 892 28 3.7 400 50 51 431 6 5 £ 876 9.27270 9.99280 9.99251 50 51 "-1 3.8 3.8 9.62071 9.62497 400 53 740 98 9.28128 9.99221 52 3 8 9.629,9 ' 53 9 18 9.28971 9.99191 53 51.5 1 9.63338 99 31 3.9 417 54 1057 102 9.29799 9.99160 54 55-4 3 9 9.63755 414 55 56 1239 « 1422 106 9'30612 800 9.31412 9.99129 9.99097^ 55 56 126 59.3 127 3'3 4 0 9.64169 9.64579 41° 407 57 16 8 9.32197 9.99064 57 7.3 9 64986 107 773 33 4.1 404 58 9.32970 9.99031 58 9.65390 59 19 44 9.33730 9.98997 59 15 5 9 65792 112 747 34 60 124 21 36 9.34477 9.98963 60 127 19.6 9.66191 XCV1 EI'HEMKRIDES AlsD AUXILIARY TABLES. Table for computation of differential refractions at Santiago — Continued. 6— a. K. log. COW H. k.m. • f 9 0 197 19.8 ' 9.06191 „ .-». 1 93.8 '" 9.66587 • ', 9 •- i 4 3 391 3 39.4 ' 9.67371 4.3 4 5 1 4'4 9.67759 9.68,45 * 4 6 45.5 9.88598 7 50.0 -5 9.68008 8 54.5 '5 9.69986 ' g M 9 197 59.1 9.89669 I™ g 10 198 3.7 9.70035 7 371 11 8.4 9.70406 , 7 369 19 13.1 9.70775 7 367 13 17.8 9.71,43 R 364 14 99.6 ' 9.71506 „ 9 363 15 97.5 9.71869 * 16 39.4 •« 9.79999 17 31.3 9.79587 18 43.3 " 9.79943 354 19 47.4 9.73297 5.1 :< • 90 91 198 57.7 5'9 5 9 9.73649 ""^ 99 199 9.9 9.74347 93 8.9 5'3 9.74693 , 94 13.5 5'3 9.75038 £ 343 • • , 18.8 9.75380 98 94.9 5'4 9.757S1 3 97 9.76060 » 5 5 337 H 99 r. - 9.76397 9.76733 X 46 4 *'6 9.77066 31 nil s'7 9.77398 33 199 57.9 5 9.77799 33 34 130 £ « 9.78058 9.78385 ~1 35 »•« .-« 9.787,0 36 31.4 ° 9.79034 ^B 37 38 97.4 »'S ll 9.79356 9'79677 3^9 39 "•' M 9'^ 3,8 40 45.8 * 316 41 49 43 "-1 6.3 130 58.4 „ 9.80630 * 9.80945 »* 9.8,959 44 11.9 9.81571 „ 8.5 45 6 5 46 94.9 9.69191 ."•- 47 X'9 t.7 9.89499 48 49 ":« e-8 ••89805 9.83110 SO 51 -1 6*9 309 51 59 131 58.0 .' 9.83716 „ 9.840,7 » 53 "•9 70 9.843,7 ^ 54 ml 7'! 9'84*" 996 55 M ' '' ' ,.I. 56 m g 9.85910 73 M 57 «•* 3 :i.- iH 58 47.8 " 9.85798 59 •" 7.4 0.86090 60 133 9.6 I.HM EPHEMER1DES AND AUXILIARY TABLES. XCV1 The Cambridge observations were given without any correction for refraction. The series is not sufficiently extensive to warrant the computation of tables for this purpose; but manuscript tables computed for the Cloverden observatory, which is only about half a mile distant from the Harvard observatory and differs but a few seconds in latitude, furnished values of the requisite auxiliary quantities. These tables are omitted here, on accouut of the disproportionate length to which it would be necessary to print them, inasmuch as of all the twenty-six Cambridge observa- tions of Mars, (only seventeen of which were contemporaneous with the Santiago series,) there are but three when the hour-angle was less than 2", and but four others when the planet was within 3" of the meridian The remainder were at very low altitudes, the meridian distances ranging from 3h to 6h 53", and the differential refraction in declination amounting in one instance to l".4o. These values are, moreover, uncertain, to some extent, from the absence of the corresponding readings of any meteorological instrument, excepting the external ther- mometer. At the Cape of Good Hope observatory, forty-seven determinations and forty-nine compari- sons were made, the hour-angle exceeding 46'" in only five instances, and approaching the maximum lh 35™ in but a single isolated case. And since the latitude of this observatory differs from that of Santiago by less than half a degree, and the whole differential refraction for the observations of the Cape series exceeds 0".75 in only two instances/ we may without sensible error employ, in reducing this series, the tables computed for Santiago, with slight modifica- tion in extreme cases. Thus, since cos n = cos

9 7 25.78 +19 51 30.39 103 1852. Apr. 2 26.14 8.03 11.88 +7.7 30.27 —0.37 1.63 25.77 31.90 Washington Mar. 16 9 8 15.15 306 19 9.88 —1 12.11 +6.3 +20 15 30.14 —0.60 +2.71 9 8 14.55 +20 15 32.85 107 M 15.24 8.25 11.39 4.9 32.35 0.46 2.00 14.78 34.35 37 14.93 1.22 11.99 13.1 31.78 , 0.45 1.93 14.47 33.71 39 15.09 4.33 11.78 8.9 32.67 0.42 1.79 14.67 34.46 Bessel 375 Mar. 30 9 8 14.82 306 43 36.05 —1 10.75 +8.8 +19 52 10.01 —0.41 +1.84 9 8 14.41 +19 52 11.85 106 31 14.67 36.15 10.15 8.3 9.81 0.37 1.63 14.30 11.44 Bessel 275 Mar. 10 9 4 27.46 3(t 57 8.14 —1 13.14 +5.2 +20 37 33.91 —0.61 +3.03 9 4 26.85 +20 37 36.94 102 33 27.26 5.05 13.43 5.1 37.39 0.46 2.09 26.80 39.48 35 27.39 5.45 13.13 5.0 36.79 0.43 1.95 26.96 38.74 Bessel 278 Mar. 15 8 47 26.28 304 19 33.50 —1 17.82 +4.8 +33 15 13.62 —0.51 +2.08 8 47 25.77 +22 15 15.70 91 H 36.83 31.70 17.61 6.2 13.82 0.50 2.01 38.33 15.83 29 96.46 31.82 17.51 5.5 14.30 0.43 1.57 36.03 15.87 98 26.60 33.98 16.83 4.9 13.06 0.36 1.29 26.24 14.35 Bessel 344 Mar. 13 8 40 18.16 303 50 7.68 —1 18.38 +3.9 +22 44 40.91 —0.50 +1.99 8 40 17.66 +22 44 42.90 87 15 18.10 8.43 19.23 4.8 40.13 0.47 1.80 17.63 41.92 B AC. 3181 Mar. 13 9 19 18.49 306 51 53.20 —1 10.38 +3.9 +19 42 47.29 —0.61 +3.06 9 12 17.88 +19 42 50.35 109 U 18.07 53.55 11.01 4.8 46.77 0.60 2.94 17.47 49.71 \ Cancri Jan. 19 8 11 44.15 302 5 57.68 —1 24.47 +1.3 +24 28 59.60 —0.48 +4.01 8 11 43.67 +24 29 3.61 64 20 44.57 58.88 24.17 —0.6 60.00 0.49 4.00 44.08 4.00 21 44.24 6 1.82 24.91 -0.4 57.60 O.fll 3.99 43.73 1.59 22 44.45 5 57.08 24.87 +3.6 58.30 0.52 3.98 43.93 2.28 23 44.29 57.98 23.20 1.0 60.33 0.53 3.96 43.76 4.29 24 44.43 57.10 25.14 +2.0 60.15 0.54 3.93 43.88 4.08 25 44.38 58.12 94.52 -0.5 61.01 0.55 3.91 43.83 4.92 37 44.33 58.05 24.41 +0.1 60 37 0.56 3.86 . 43.77 4.23 28 44.37 6 1.32 24.68 3.5 56.97 0.57 3.83 43.80 0.80 30 44.38 0.45 25.17 +0.6 58.23 0.58 3 77 43.80 3.00 31 44.19 1.30 24.33 —1.2 58.33 0.58 3.74 43.54 2.07 Feb. 1 44.35 5 57.95 23.85 +2.5 57.51 0.59 3.70 43.66 1.21 3 44.00 57.65 23.80 +2.3 57.96 0.60 3.80 43.40 1.62 3 44.40 56.00 34.03 1.7 60.44 0.60 3.61 43.80 4.03 4 57.63 34.58 1.1 59.96 0.61 3.56 3.52 8 44.02 57.45 23.63 1.5 58.78 0.61 3.39 43.41 2.17 9 43.78 59.88 33.70 1.2 56.73 0.63 3.34 43.16 0.07 10 44.30 49.58 23.76 9.8 58.49 0.62 3.29 43.68 ' 2.17 COMPARISON-STAG?. Reduction of stars determined at Santiago — Continued. Ki-durt'n in mean Mean place for 1853.0. ~ • i;u M"\ 1^ .'J " N»a.« n*te. Ob,'d ff. Circlc-rtaduil ttcfratlion. Nadir. Ob.cnred O. N • ' in 3. a. d. 1859. a. m. t. • ' II' U • , i. „ *. ... i. • i it ACancrt Feb. 11 • 11 44.38 309 5 51.06 —1 94.45 +7.9 +949859.58 -0.61 +3.21 8 11 43." .(-24 29 3.83 64 (Coni'd.) 13 44.45 49.13 94.17 9.6 , 50.55 O.G1 3.13 43.84 3 39 14 41.31 . • : . : 94.53 6.3 60.40 0.61 3.08 43 70 3.48 15 44.93 54 93 34.61 4.7 59 09 0 60 3.03 43.63 2.11 16 44.39 54.45 2436 4.9 59.13 0.60 9.96 43.79 9.08 17 44.50 53.05 94.74 69 58.90 060 3.90 43.90 1.80 18 44.35 53.77 35.93 6.0 61 96 0.60 9.84 43.75 4 10 19 44:30 55.38 24.58 3 5 59.81 0.59 9.78 43.71 9.50 90 44.17 54.15 94.35 2.9 61.41 0.59 9.79 43.58 4.13 SI 44.36 53.45 93.51 8.4 57.77 0.59 2.66 43.67 0.43 22 4396 S5.83 94.06 2.7 59.64 0.58 259 43.38 3.09 23 44.91 55.52 24.86 4.6 58.85 0.57 2.53 43.64 1.38 94 44.93 53.65 93.88 4.7 59.64 0.57 9.47 43.65 9.11 Mar. 13 44.09 50.20 23.55 3.9 63.56 0 39 1.36 43.70 4. 88 15 43.78 50.75 24.59 4.8 63.15 0.36 1.13 43.49 4.27 WHkiniton Mar. 19 8 38 3.38 303 0 37.93 —1 22.73**- + 4.1 +23 34 14.83 +0.37 +1.98 898 3.01 +23 34 17.83 78 90 3.33 35.90 31.72 3.9 16.03 0.36 1.18 9.96 17.21 • 3.14 34.18 91.31 S.S 15.74 0.33 1.10 9.81 16.74 BCMCI 344 Jan. 94 8 38 15.34 302 49 19.65 -1 22.84 + 9.0 +23 45 35.30 -0.53 +4.10 8 98 14.81 +23 45 39.40 79 25 15.10 34.38 22.62 — 0. j 32.85 0.54 4.09 14.56 36.94 Mar. 13 15. 01 15.53 91.18 + 3.9 35.87 0.46 1.63 14.56 37.50 WMbwfion Jan. 97 8 37 32.17 30336 37.33 —1 22.92 + 0.1 +2358 7.11 —0.56 44.04 827 31.51 +23 58 11.15 •77 Mar. 15 31.73 47.98 22.97 4.8 5.00 0.43 1.43 31.30 6.43 16 32.35 46.23 ?:.-:, 6.2 4.44 0.43 1.35 31.92 5.79 H. C. 16464 Jan. 98 8 16 36.37 302 33 35.30 —1 33.20 + 3.5 +94 1 98.51 -0.57 +3.88 8 16 35.80 +34 1 32.39 69 Mar. 31 35.85 13.02 18.50 8.3 31.29 0.13 0.96 35.72 31.55 Waabinfton Mar. 33 8 30 55.47 303 39 17.42 —1 23.36 4 5.1 +94 5 34.95 —0.38 +0.78 8 90 55.19 +34 5 35.73 73 : 55.00 96.00 22.40 4.9 25.61 0.23 0.57 54.77 26.18 Wttkinfton Mar. 16 8 19 47.60 332 25 l;>.-'.> —1 33.32 + 6.2 +94 9 36.01 -0.31 +1.31 8 19 47.99 +34 9 37.22 71 92 47.17 11.38 23.08 5.5 40.31 0.28 0.80 46.89 41.11 95 47.56 11.83 23.15 5.0 40.44 0.24 +0.59 47.32 41.03 April 6 46.67 6.00 33.38 8.2 43.19 0.05 —0.36 46.63 42.93 WMbinpon Mir. 27 8 19 50.05 302 15 l.OS -1 93.6T. + 13.1 +34 19 43.62 —0.21 +0.45 8 19 49.84 +24 19 44.07 73 29 49.83 6.70 23.42 8.9 41.93 0.18 +0.33 49.65 43.35 April 8 49.75 5.90 23.37 8.0 43.58 0.01 -0.30 49.74 43.38 BMMl 344 F«b. 1 8 16 9.13 303 9 56.5} —1 33.75 -2.5 +94 95 3.84 -0.60 +3.74 8 16 8.53 +34 95 7.58 68 2 8.68 53.33 33.51 + 2.3 1.99 0.60 3.70 8.08 5.69 Mar. 18 8.83 50.93 H, • 5.8 3.88 0.33 0.98 8.50 4.86 WMMoflon Mar. 13 8 13 10.33 302 538.40 -1 93.58 + 3.9 +94 99 25.39 —0.39 + 1.39 8 13 9.84 +24 39 96.68 66 15 9.88 35.35 34.61 4.8 18.57 0.99 • 1.15 9.59 19.72 Beattt 341 Feb. 7 8 6 16.60 301 47 55.53 —1 34.04 + 0.2 +94 4663.43 —0.61 +3.32 8 6 15.99 +24 46 65.73 63 8 48 0.43 M 1 1.5 56.77 n.rtl 3.27 . . G0.04 9 15.69 47 59.63 94.57 1.9 57.85 0.61 3.23 15.08 61.07 Mar. 13 16.96 54.78 94.48 3.9 59.91 0.36 1.14 15.90 60.05 16 16.60 64.58 95.34 6.3 58.67 0.39 0.94 16.38 59.61 18 10.18 55.98 37.72 5.8 60.05 0.99 0.81 ISM 60.86 19 16.32 57.80 H, . 4.1 58.70 0.38 0.74 15.94 59.44 BMMl 341 Feb. 11 7 59 34.83 301 43 19.73 —1 2'.. 71 + 7.9 +94 53 39.20 —0.59 +3.01 ; H HJH +94 53 43.31 60 Mar. 13 34.60 13.38 94.79 3.9 41.63 0.33 1.08 34.27 42.70 15 94.18 13.95 95.94 4.8 41.30 0.30 0.94 B.M 42.34 II. C. 15707 Feb. 11 7 55 16.13 301 33 42.05 —1 35.86 + 7.9 +94 55 10.03 -0.59 +9.94 7 55 15.54 +34 55 13.96 58 13 16.16 41.45 25.53 9.6 8.58 0.58 3.83 15.58 11.41 14 16.03 46.86 95.94 6.3 6.89 0.58 3.78 1.1. 4.1 9.67 15 16.08 52.71 96.04 4.7 2.74 0.57 9.73 1.1.51 5.47 16 10.00 49.03 95.79 4.9 5.97 0.57 9.68 1.1. 4:t 8.65 Mar. 95 16.0:1 43.35 35.43 5.0 11.19 0.07 0.25 15.95 11.44 • >Ii Mar. 95 56.51 5.34 17.86 5.0 41.63 0.37 1.31 58.14 42.94 87 58.48 11 56.95 17.77 13.1 49.53 0.35 1.17 58.13 43.70 H. C. 17.M3 Jan. 17 - • H i- 303 43 19.08 —1 19.39 — S.I +92 51 36.45 —0.41 +4.93 - ;:. IMI +99 51 40.68 89 Mar. 18 19.90 91.65 + 5.8 37.06 0.47 1.67 ... ,,., 38.73 90 98.08 14.40 19.56 3.9 35.37 0.44 1.63 97.64 37.00 B^M01 3H Mar. 13 8 35 7.96 303 90 19.59 —1 19.83 + 3.9 +23 14 30.52 -0.48 +1.83 835 6.78 +231432.35 85 15 6.90 91.99 90.73 4.8 0.46 1.69 6.44 30.51 Wa.hi Mar. 96 8 31 41.30 303 18 35.89 —1 19.87 + 4.9 +23 16 13.96 -0.29 +0.89 8 31 41.01 +93 16 14.15 89 27 40.98 33.19 20.X, 13.1 8.94 tJt 0.89 40.70 9.06 99 41.07 33.62 90.16 11.75 0.95 0.68 40.89 12.43 Wellington Mar. 33 8 30 1 1 .90 303 10 98.59 —1 31.98 + 5.1 +23 24 21 .77 —0.33 +1.03 8 30 11.57 +23 24 22.80 80 85 | 11.97 30.58 20.78 5.0 19.31 0.29 0.90 11.68 20.91 H 12.08 91.88 20.77 13.1 19.90 0.-J5 0.77 11.83 90.67 Mean places for 1852.0 of Comparison-Stars determined at Santiago. Refer- ence No Name. «. No. ot». *. So. obi. Refer- ence No. Name. «. No. n\<: d. X.i. Ml,-. ». m. i. • / /* k. m. i. • i ii 47 H. C. 15401 . 7 46 38.58 3 +24 44 50.99 3 87 Bowel 344 . . 8 40 17.65 2 +22 44 42.41 9 • H. C. 15419 . 7 46 57.95 3 94 36 49.06 3 • Bewel 978 . . 8 44 15.23 4 22 33 33.05 4 - BtMcl 341 . . 7 47 5.71 3 95 3 3.98 3 H II. C. 17513 . 8 45 97.91 3 99 51 38.80 3 a Benel 311 . . 7 48 38.31 5 94 54 11.79 5 90 Bewel 278 . . 8 45 58.07 3 9992 44.43 .1 * Benel 339 . . 7 50 59.58 3 949897.10 3 91 Benel 978 . . 8 47 96.09 4 22 15 15.44 4 55 B.C. 15006 . 7 59 38.37 3 94 18 58.82 3 • Bevel 978 . . 8 47 32.71 3 99 8 46.91 3 57 Benel 341 . . 7 55 3.99 15 25 0 20.86 15 93 Benel 978 . . 8 48 54.43 9 91 54 58.75 1 .- Bowel 341 . . 7 55 15.59 1 94 55 10.27 6 94 Bewel 978 . . 850 95.60 6 91 44 13.86 6 ' ' Benel 341 7 S994. 13 3 24 52 42.38 :i 95 Bemel 278 . . K :•! 13.18 3 92 9 29.81 3 an Benel 341 . . 8 6 16.01 0 94 47 0.18 7 90 Bowel •/ 8 53 47.90 3 91 34 8.19 3 64 >(-.., i.-n . . . 8 11 43.09 39 94 99 9.83 33 97 Benel 975 . . 8 58 16.46 5 91 0 99.81 5 66 Washington H 13 9.79 2 94 99 21.42 9 98 Bcncl 978 . . 8 59 27.31 3 21 29 80.81 1 60 Bawl 344 . . 8 18 8.37 3 94 95 0.04 3 99 Anon. . . . 3 90.96 9 90 57 99.19 9 69 11. C. 16464 . 8 10 35.70 a 94 1 31.97 •J 100 Bewel 977 . . 3 19.79 9 21 1 45.00 •: 71 Wa.hlngton . 8 19 47.03 4 34 9 40.57 4 101 II. C. 18133 . 4 16.55 3 91 16 51.35 3 79 Washington . 8 19 49.74 3 24 19 43.90 3 102 Bcuel 275 . . 4 96.87' 3 20 37 38.39 3 73 « 6 90 54.96 9 24 5 30.90 9 103 Bewel 275 . . 7 95.78 9 19 51 31.15 1 77 Washington . 897 31.61 3 9358 5.55 3 104 RUinker2799 . 7 40.43 9 20 41 9.64 .' - Washington . 898 9.93 3 23 34 17.96 3 105 KUmkrr2800 . 7 42.93 3 90 27 45.07 3 79 Brorl 344 . . 8 98 14.64 :i 23 45 37.95 3 106 Bowel 275 . . 8 14.36 3f 19 5-J 9 80 Washington . 830 11.09 3 23 24 21 .-a 3 107 Washington 8 14.02 4 20 15 33.84 4 89 WMhtagtoa . 8 31 40.84 3 23 16 11.88 3 106 Bewel 975 . . 10 31.76 3 90 2 94.45 3 as Bowl 344 . . o as o.ei 2 +33 14 31.43 109 B.A.C.:n-l . 12 17.68 9 + 19 42 50. 03 2 COMPARISON-STARS. C1I1 The Washington observations were reduced by Prof. Yarnall with the aid of special tables, which immediately refer the declinations to the mean equinox for the commencement of the nearest decade, being in almost all cases 1860.0 The declinations, as observed with the mural circle, were usually accompanied, for"the sake of identification, by the apparent right-ascension, roughly noted at the time of transit over the middle thread of the instrument, so that the several observations were, for the most part, given in the form of approximate apparent right-ascensions and mean declinations for the epoch 1860.0. The right-ascensions of the first seven stars in the list were determined with the Washington transit-instrument, and reduced also to the mean equinox of 1860.0 by Prof. Lawrence. The right ascensions of the remainder are either estimated for the apparent equinox by the observer, as already mentioned, in which case they are enclosed within parentheses, or in the other cases taken to the nearest second from such sources as were most readily accessible by myself, and referred to the epoch of the declinations. A few star-positions for 1850.0, taken from earlier Washington observations, are incorporated in the list. But all the places, for which the contrary is not specially indicated by parentheses or otherwise, are counted Irom the mean equinox and equator of 1860.0. Annexed to the table of observations is a compend analogous to that which follows the Santiago observations, and containing the resultant list of declinations determined by the Naval Observatory. It gives the means of the several determinations as counted from the mean equinox of 1860.0, and also the reductions to the beginning of the year in which the comparison was made. The right-ascensions are, of course, entitled to the same confidence as in the pre- ceding tables from which they are derived. As was the case with the arrangement of the Santiago star-places, the reference-numbers given in the last column of the table of observations denote the number of the star in the special list, and those given in the special list relate to the number in the General Catalogue of Comparison-Stars. civ I COMPARISON-STARS Observation* of Comparison- Stars \oit1i the Washington mural circle. Star. a. Dale. Mean derlina lion, 1860.0. Oba'r Star. a. Date. Mean derlina- lion, IBOO.O. Ot»: \. 41.716 18 8.98 Y. 18 36 59.57 \ 41.664 • 8.97 Y 30 59.63 \. 30 9.53 Y. 1856. . 1856. Jan. 3 59 37 Y. Jan. 3 7.50 Y 10 36 58 90 Y. 4 7.95 Y 15 37 1.19 Y. 10 9.29 Y. 1* Y. 15 9.16 Y. •:• 0.14 Y. 16 9.97 Y. S3 1.64 Y. 18 7.83 I 98 37 0.13 Y 23 9.31 Y. 1855. S3 9.13 Y. RUmkrr 1673 5 54 44.989 1' ••. 1 +36 16 36.00 Y. 18 B.I - Y BenelZ.405 . 5 11 6.533 Dec. 3 +96 63334 Y. 30 36.96 Y. 6.539 30 31.60 Y. 1836. 1856. Jan. 3 36.13 Y. 6.412 Jan. 3 31.09 Of. 10 35.09 Ys 4 31.63 Y. 15 33.80 Y. 10 31.63 Y. 18 36.03 Y. 15 31.34 Y. 93 3H.39 Y. 18 31.46 Y. 33 36.37 Y. .23 33.31 Y. ^ 38 36.00 Y. S3 33.46 Y. 1833. • 33.75 Y. RUinker 1680 . 5 55 8.8 Dec. 3 +36 31 5.68 Y. 1855. 18 5.77 Y. Bewel Z. 533 . 5 18 95.333 ' Dec. 3 +38 37 30.11 Y. H 5.43 Y. 33.130 18 -• i -'i Y. ! v •'• 30 29.74 Y. * Jan. 3 5.57 Y. Jan. 3 39.91 Y 4 5.35 Y. 10 30.80 Y. 10 5.51 Y. 15 31.06 Y. U 6.48 Y. 18 .30.34 Y. 18 C.35 Y. 33 29.73 Y. 33 7.50 Y. 33 .11.15 Y. •1 6.63 Y. -.- 30.21 Y. 6.64 ! W. 0 8 13 39 April 6 -f-34 27 56.30 Bewel 7.405 . 5 33 30.531 D.W. 3 +96 38 30.94 Y. 8 53.33 20.332 IB 19. P3 Y. DowlZ 314 8 16 37 April r> +24 23 36.29 :n 30.30 Y. a 31. !M J.in. 3 30.36 Y. *Lal. 18464 . . 8 17 5 April 9 +24 0 9.08 4 19.39 Y. BeHClZ.344 . . 8 28 43 April 9 +33 44 0.00 10 19.78 Y. 13 30.67 Y. W. 0 8 30 40 April 6 +2323 44.7.-. 18 30.33 Y. Bevel Z. 344 . . 8 33 35 April 6 +33 13 51.83 19.54 Y. 8 51.36 33 Y. Bowel Z. 278 . . 846 36 April 8 +23 30 59.44 38 19.80 Y. U 59.43 MSB, BMMI7.43S . 5 30 14.012 +36 31 57.08 Y. Bewel Z 378. . 8 47 54 April 6 +33 1339.11 14.035 18 56.08 Y. Bettel Z. 878 . . 8 50 54 Apnl 11 +31 43 35.37 1.1.066 30 56.44 Y. Be«el Z. 378 . . 8 53 40 April 18 +33 0 39.67 30 57.91 Y. 1856. Bmwl Z. 378 . . 8 54 15 April 6 +31 33 19.95 Jan. 3 56.74 Y. 8 lf.01 10 56.67 Y. BeMel Z. 375 . . 858 44 April 6 +91 4 31.03 15 57.44 Y. 8 30.85 10 57.69 Y. 18 &7.30 Y. Bcuel Z. 378 . . 8 59 55 April 11 +21 27 30.39 37 £7.10 Y. 18 30.30 83 57.49 Y. W. 0 9 8 43 April 8 +33 13 37.41 38 + 38 31 57.09 Y. BeMel Z. 374 . . 9 4 54 April 11 +33 33 43.87 COMPARISON-STARS. Observations of Comparison-Stars loith the Washington mural circle — Continued. cv Star. a. Date. Mean declina- tion, 1860.0. Obs'r. Star. a. Date. Mean declina- tion, 1860.0. Ob«'r. A. m. f. 1856. • , „ A. m. s. 1856. * i n W. O. ... 9 10 49 April 6 +90 0 27.81 (17 25 38) May 20 —17 44 0.15 Y. 11 26.77 22 0.33 Y. 28 0.73 Y. Piazzi IX, 50 . 9 12 45 April 18 +19 40 52.63 . June 3 0.39 Y. (16 41 19) May 20 —26 29 36.48 Y. 18 0.85 Y. 23 36 90 June 3 37.96 Y. (17 99 10) May 20 21 —27 57 25.59 26.66 Y. M. 18 36.85 Y. 22 25.43 Y. July 1 36.88 Y. June 20 26.26 M. 4 37.06 Y. 10 36.92 Y. (17 39 91) June 3 —18 0 15.39 Y. 18 15.43 Y. (16 43 91) May 20 —26 40 38.66 Y. 19 15.63 Y. 22 39.14 Y. 38 37.48 Y. (17 39 5) May 20 —18 3 0.43 Y. June 31 38.87 Y. 32 3 0.53 Y. 33 2 59.93 M. (16 49 36) June 3 —26 53 25.06 Y. June 3 3 0.44 Y. 19 93.99 Y. iff 18 0.49 Y. 21 24.43 Y. 19 0.73 Y. July 1 24.56 Y. (17 44 18) May 20 —98 1 10.01 Y. (16 50-30) June 3 —96 57 37.84 Y. 21 9.68 M. 19 36.67 Y. 32 10.67 Y. 91 37.96 Y. June 19 9.93 Y. July 1 37.12 Y. (17 46 49) May 38 —18 15 41.16 Y. June 2 39.55 Y. (16 59 94) May 90 —97 9 17.89 Y. 18 39.93 Y. 21 18.29 M. 20 39.53 M. 99 18.39 Y. June 18 18.34 Y. (17 47 40) May 21 —28 2 17.50 M. 22 18.28 Y. (16 55 6) May 90 —97 0 38.73 Y. June 3 18.86 Y. 21 40.07 M. 19 17.79 Y. 22 39.60 Y. (17 59 49) May 23 -37 59 5.63 M. June 18 3B.51 Y. 28 6.00 Y. (17 0 9) May 29 -97 12 41.09 Y. June 19 6.28 Y. 93 39.74 M. 20 7.16 M. • June 18 41.00 40.35 Y. Y. (17 53 53) May 21 22 —37 49 17.16 17.18 M. Y. (17 739) May 90 —27 23 5S.32 Y. June 3 17.91 Y. 99 55.79 Y. July 1 17.25 Y. June 3 55.18 Y. (17 56 90) May 32 —27 50 14.01 Y. 19 54.32 Y. 38 13.93 Y. (17 11 34) May 93 —17 36 21.32 M. June 3 13.74 Y. June 18 23.00 Y. July 1 13.42 Y. 90 91.96 M. (17 59 26) May 32 —27 39 38.64 Y. 97 21.44 M. 33 28.04 M. (17 13 1C) May 90 —97 51 34.32 Y. June 18 37.14 Y. 21 36.10 M. July 4 38.93 Y. 99 35.12 Y. (18 0 15) June 2 -37 45 2.73 M. July 14 36.40 M. 3 4.29 Y. 17 34.85 Y. 19 9.48 Y. (17 13 48) June 3 —37 39 7 01 Y. July 1 2.99 Y. 19 5.35 Y. (18 4 32) May 28 —25 10 50.45 Y. July 10 7.69 Y. June 3 51.56 Y. 15 7.09 Y. 19 51.36 Y. (17 14 17) June 21 —97 50 43.70 Y. July I 49.94 Y. (17 14 16) May 98 —17 33 46.69 Y. (18 5 11) June 2 —27 32 5.23 M. June 18 46.79 Y. 18 6.89 Y. 90 46.59 M. 91 6.66 Y. 97 45.81 M. July 1 5.71 Y. po CV1 COMPAKI8ON-8TAK8. Observations of Comparison-Start with the. Washington mural circle — Continued. •ur. a. DMt. Mean declina- tion, 1880 0. OtaV. Star. a. Dale. Mean declina- tion, 1860.0. Oba'r. ».«.!. 1858. • 1 U ». m. f. 1856. • / y 93 — 9S 45 0.84 M. (18 IS 44) May 98 -96 3341.65 Y. Jan* 90 9.89 M at 49.13 Y. July 14 3.93 M. June 3 49.33 Y. IS 1.10 V. 18 41.11 Y. (18 7M) May 91 —97 97 14.37 M. 91 49.59 Y. 93 13.03 Y. July 10 15.15 Y. (17 91 37) May 90 -17 41 44.91 Y. 99 44.40 Y. (18 • S) May 30 —97 5 19.94 T. 93 44.78 Y. June 3 30.06 T. 97 90.79 T. (18 18 47) May 90 -96 49 45.99 Y. July 17 99.04 T. 91 46.31 M. (18 (95) June 18 —18 50 41.15 T. • 46.35 Y. It 41.49 Y. 93 46.55 Y. July 4 42 62 Y. (18 t 49) M.y 98 —95 59 3.08 Y. (18 94 3) May 90 —19 4 5.95 Y. June 91 9.76 Y. 99 6.58 Y. July 1 9.46 V June 9 6.96 M. 3 6.97 Y. (18 IS It) May 90 —96 8 33.06 Y. 99 33.43 Y. July 19 33 77 Y • Mean declina- (18 19 57) June 18 It —1855 4.68 5 78 Y. tion, 1850.0. July IS 6.67 . Y. (18 18 34) 1853. Aug. 8 —26 43 9.86 (18 IS 96) May 30 —96 98 38.99 Y. 19 9.41 July 1 38.85 Y. It 9.50 10 39.07 Y. 1854. 17 38.99 Y. Sept. 9 3.91 COMPARISON-STAES. Mean declinations of Comparison-Stars determined at Washington. cvu No. Name. Mean plafe, 1860.0. No. obs Tear of comp. Red. in a. Mean O for beg. of year. Red. in 3. a. 3. 2 3 4 5 8 11 13 14 66 68 69 79 80 85 90 91 94 96 96 97 98 109 107 108 109 110 111 113 113 114 115 116 117 118 119 120 iai 133 194 135 196 197 198 199 IX 131 139 133 134 135 136 137 138 139 140 141 149 143 144 145 146 147 148 Bessel 396 A. m. 9. 5 3 41.760 5 11 6.488 5 18 25.176 592 20.422 5 30 13.971 5 46 56.049 5 54 44.989 5 55 8.80 8 13 39 8 16 37 8 17 5 8 98 43 8 30 40 8 35 35 8 46 26 8 47 54 8 50 54 8 52 40 854 15 8 58 44 8 59 55 9 4 54 9 8 42 9 10 49 9 1245 16 41 33 16 43 33 16 49 49 16 50 42 16 59 36 16 55 19 17 0 21 17 7 45 17 11 44 17 1338 17 14 0 17 14 99 17 14 96 17 95 49 17 29 23 173233 17 39 16 17 44 30 17 4655 17 47 53 17 53 2 1754 0 17 56 32 17 59 38 18 0 28 18 444 18 594 18 7 17 18 7 38 18 9 18 18 9 38 18 10 7 18 12 30 18 13 10 18 13 38 18 15 56 18 19 0 1894 15 • / // +26 17 8.83 26 6 31.85 26 27-30.29 26 28 20.17 26 31 57.08 26 27 0.29 26 1C 35.98 26 21 6.08 24 27 55.79 •J I 23 35.60 24 0 2.08 23 44 0.00 23 22 44.75 23 12 51.54 29 20 59.44 29 13 29.11 21 42 25.27 93 0 39.67 21 32 18.63 21 4 30.94 21 27 30.30 20 35 43.67 20 13 37.41 20 0 27.29 +19 40 52.63 —26 29 37.01 26 40 38.56 26 53 24.51 26 57 37.40 97 2 18.93 27 0 39.23 97 12 40.55 27 23 55.40 17 36 21.93 27 51 35.36 27 32 6.71 27 50 43.70 17 33 46.45 17 44 0.49 97 57 25.99 18 0 15.45 18 3 0.43 38 1 10.07 18 15 40.04 38 3 18.11 27 52 6.27 27 49 17.38 27 50 13.78 27 39 27.74 27 45 3.12 25 10 50.83 27 32 6.12 25 45 9.19 27 27 14.19 27 5 20.69 1850 41.73 25 59 9.77 26 8 33.42 18 55 5.71 26 28 38.78 26 33 42.09 26 42 46.13 —19 4 6.69 12 10 10 11 12 10 10 11 2 2 1 1 1 2 2 1 9 1 2 9 2 1 1 2 1 7 4 3 3 4 4 4 4 4 5 4 1 4 5 4 3 6 4 4 4 4 4 4 4 4 4 4 3 3 4 3 3 3 3 4 5 8 4 1850 1850 1850 1850 1849 1849 1849 1849 1852 1852 1852 1852 1852 1852 1852 1852 1852 1859 I8S2 1852 1859 1851 1851 1851 1851 1850 1852 1850 1850 1850 1850 1850 1850 1851 1850 1850 1851 1851 1851 1850 1851 1851 1850 1851 1850 1850 1850 1850 1850 1850 1850 1850 1850 1850 1850 1851 1850 1850 1851 1850 1850 1850 1851 8. —37.12 37.12 37.26 37.28 41.06 41.10 41.05 41.07 /. • « • • • • • • • ° t ii +26 16 19.79 26 5 49.12 26 26 53.83 26 27 47.09 26 31 28.18 26 26 47.32 26 16 30.60 2621 1.08 24 29 23.94 24 25 5.54 24 1 32.29 23 45 36.83 23 24 22.66 23 14 32.17 22 22 45.86 99 15 16.30 21 44 14.01 29 2 27.26 21 34 9.08 21 6 23.57 21 29 23.59 20 37 53.86 90 15 49.85 20 2 40.67 +19 43 7.03 —26 28 29.65 26 39 32.64 96 52 23.79 26 56 37.42 27 1 19.84 96 59 43.12 27 11 48.68 27 23 9.80 17 35 44.00 27 50 54.67 27 31 26.46 27 49 3.87 17 33 10.60 17 43 34.25 27 56 59.01 17 59 53.68 18 2 43.91 38 0 56.27 18 15 29.52 28 2 7.21 27 51 59.93 27 49 12.06 27 50 10.47 27 39 27.14 27 45 3.95 25 10 54.71 27 32 10.56 25 45 8.23 27 27 20.72 27 5 28.55 18 50 49.10 25 59 11.27 96 8 44.09 18 55 15.85 26 28 50.43 26 33 55.76 26 43 2.69 —19 4 25.54 i n —0 49.04 0 42.73 0 36.46 0 33.08 0 28.90 0 12.90 0 5.38 —0 5.00 +1 28.22 1 29.94 1 30.21 1 36.83 1 37.91 1 40.63 1 46.42 1 47.19 1 48.74 1 47.59 1 50.45 1 52.63 1 53.29 2 10.19 2 12.44 2 1S.38 2 14.40 1 7.36 1 5.92 1 0.72 0 59.98 0 58.39 0 56.11 0 51.87 0 45.60 0 37.93 0 40.69 0 40.25 0 39.83 0 35.85 0 26.24 0 26.98 0 21.77 0 16.52 0 13.80 0 10.52 0 10.90 0 6.34 0 5.32 0 3.31 +0 0.60 -4) 0.13 0 3.88 0 4.44 0 6.11 0 6.53 0 7.86 0 7.37 0 8.50 0 10.67 0 10.14 0 11.65 0 13.67 0 16.56 —0 18.85 Bessel 405 Bessel 523 Bessel 405 Bessel 405 Bessel 405 Kiimker 1673 RUmkerl680 W. 0 Bessel 344 Lalande 16464 Bessel 344 .. .... W. 0 Bessel 344 Bessel 978 . . .... Bessel 278 Bessel 978 Bessel 278 Bessel 978 .... . . Bessel 975 Bessel 278 ... ... Bessel 975 W. O W. 0 Piazzi IX 50 Fur No. 121 the I a auumed to be —27° 49' instead of —27* 50'. cvin COMPARISON-STARS. Ninety-three observations of comparison-stars were afforded by Bessel's zones, and are here appended, and reduced to the mean equinoxes of 1825.0, and of the commencement of the year of comparison. The reference-numbers are to the General Catalogue. Comparison-Stars from BesseTs Zones. i i *H Obwnrcd Reduction to 1895.*. Mean place, 1895.0. YemroOomp. Reduction la befin- ning of JTMI. Mean place. No. a. d. a. i. a. 8. a. 8. a. *. ». m. I. • 1 If •. ii ». m. «. • i a m. I. i a ». m. i. • / ii m 7 7 31 49.30 +14 37 49.1 +98.79 —74.0 7 39 11.09 +14 36 35.1 1859 +1 31 .53 —3 33.6 7 33 49.55 +14 33 1.5 49 146 8 7 97 50.30 14 44 34.7 7.00 63.3 7 97 57.30 14 43 31.4 18S9 31.67 394.S 79998.97 14 40 6.9 38 7 7 31 3.70 14 37 37.8 6.98 63.9 7 39 10.68 14 36 33.9 1859 31.53 3 33.6 7 33 49.91 " 14 33 0.3 49 373 9 7 9738.90 1498 49.1 3.89 44.6 7 97 56.09 15 98 4.5 18S9 39.13 394.4 7 99 98.15 15 94 40.1 37 9.10 7 99 9.38 14 57 48.8 3.83 45.3 7 99 6.91 14 57 3.5 1859 31.79 3 96 9 7 30 38.00 14 S3 36.6 39 a 7 99 99.60 14 51 51.9 3.83 45.4 7 99 96.43 14 SI 6.8 1859 31. 79 397.7 7 30 58.15 14 47 39.1 40 e 7 31 8.38 15 44 36.8 3.81 44.9 7 31 19.17 15 43 59.6 1859 39.94 331.5 7 39 44.41 15 40 91.1 41 9 7 39 13.43 15 54 8.7 3.89 43.7 7 39 17.93 15 53 95.0 1859 39.33 3 33.9 7 33 49.55 15 49S1.1 43 9 7 SI 55 88 16 9 59.1 3.75 49.0 7 51 59.41 16 9 17.1 1859 33.03 4 15.8 7 53 31.44 1558 1.3 56 9 8 10 18.18 16 1 99.4 3.70 40.8 8 10 19.86 16 0 41.6 1859 31.59 4 53.1 8 11 51.45 15 SS 48.5 es 8 8 13 93.89 IS 50 11 8 3.70 41.0 8 13 97 59" 15 49 39.8 1859 31.40 4 59.3 8 14 58.99 15 44 33.5 87 7.8 8 99 49.95 15 59 17.3 3.68 40.3 8 99 53.63 IS SI 37.0 1859 n.u 5 17.6 - -M M.C 15 46 19.4 75 8.9 8 25 93.48 16 90 9.7 3.67 39.4 8 95 97.15 16 19 30.3 1859 31.37 591.5 8 98 58.59 16 14 7.8 76 874 9 83848.50 1853 91.9 4.11 36.3 8 30 59.63 18 51 45.6 1859 33.60 5 39.7 8399593 18 46 19.9 83 9 8 30 58 OS 19 6 53.0 4.19 35 9 8 31 3.14 19 6 16.1 1898 39.73 5 33.1 8 39 35.87 19 0 43.0 84 9 8 37 48.40 18 49 4.3 4.19 36.0 837 59.59 18 41 98.3 1859 33.28 5 45.6 8 3994.80 18 X, 43.7 86 BU 8 8 56 39.01 91 13 19.3 4.48 99.9 8 56 43.49 91 1943.1 1859 39.89 « 18.7 8 58 16.38 91 6 94.4 97 - . 9 1 49.19 91 8 39.1 4.48 99 1 9 1 46.67 91 8 10.0 i M 33 66 697.1 9 3 19.33 91 1 49.9 100 9 9 9 49.60 90 44 34.3 4.48 99.6 9 9 54.08 90 44 4.7 1851 98.96 6 14.5 9 4 93.04 90 37 50.9 101 9 9 5 49.10 19 58 39.6 4.49 30.6 9 5 53.59 19 58 9 0 1851 98.48 6 19.9 9 7 99.07 19 51 49.8 103 9 9 6 37.63 19 59 13.4 4.49 30 6 9 6 49.19 19 58 49.8 1851 98.45 6 90.5 9 8 10.57 19 59 99.3 106 9 9 8 45.79 90 9 99.1 4.48 30.9 9 8 50.90 90 8 58.9 1-..I 98.44 6 93.8 9 10 18.89 90 935.1 108 •78 9 7 95 15.60 15 19 5.3 4.49 45.9 7 9590.03 15 18 90.1 1 • 39.17 3 1S.7 7 96 59.19 15 15 1.4 36 8.9 7 97 51.99 15 98 53.6 4.40 44.9 7 97 56.33 15 98 8.7 in 39.13 394 4 : •-'.> •-•-.!.. 15 94 44.3 37 8 7 31 7.64 15 44 38.9 4.39 44.5 7 31 19.03 15 43 54.4 1859 33.94 3 31. 5 7 39 44.97 15 40 99.9 41 3" 8.9 9 1 43.50 91 4 18.8 4.01 30.3 9 1 47.51 91 3 48.5 1859 39.63 697.9 9 390.13 90 57 91.3 99 8.9 9 1 43.09 91 8 41.1 4.09 30.9 9 1 47.04 91 8 10.9 1859 33.66 6 97.1 9 3 19.70 91 1 43.8 100 •.'-- 9 7 57 34.80 99 55 45.7 4.98 31.9 7 57 39.08 99 55 14.5 1859 36.16 4 97.6 7 59 15.94 99 50 46.9 59 8 8 8 34.80 99 9 95.5 4.98 31.8 8 8 39.08 99 1 53.7 1859 35.93 4 49.9 8 10 14.30 91 57 3.8 63 7 8 17 50.50 91 43 54.6 4.95 31.8 8 17 54.75 91 43 99.8 1859 34.71 5 8.1 8 19 99.46 91 38 14.7 70 8 8 3397.60 9390 40.9 4.18 99.0 8 33 31 .78 9390 11.9 1859 35.05 5 37.7 8 35 6.83 93 14 33.5 85 9 8 4339.40 99 39 58.4 4.17 99.4 8 49 40.57 93 39 99.0 1859 34.97 S 54.3 8 44 14.84 99 33 31.7 88 8.9 8 43 49.43 99 58 4.9 4.16 99.0 8 4353.59 99 57 35.9 1859 34.49 5S6.S 8 45 98.01 99 51 39.4 89 8 8 44 6.39 9953 5.6 4.16 99.1 8 44 10.48 99 59 36.5 am 34.35 5 57.0 8 45 44.84 99 46 39.5 • 8 8 44 19.57 99 99 19.1 4.17 99.6 8 44 93.74 99 98 49.5 1859 34.10 5 57.3 8 45 57.84 9999 45.9 90 8 8 45 48.00 99 91 44.7 4.16 99.7 8 45 59.16 99 91 15.0 1859 33.96 6 0.0 8 47 98.19 99 15 15.0 91 9 8 45 54.74 99 15 16.9 4.17 99.8 8 45 58.91 99 14 46.4 1859 33.93 6 0.1 8 47 39.84 99 8 46.3 99 8 8 47 16.60 29 1 99.9 4.17 30.0 8 47 90.77 99 0 59.9 1859 33.79 6 3.5 8 4854.49 91 54 57.4 93 7.8 8 48 47.88 91 SO 50 8 4.16 30.9 8 48 59.04 91 50 90.6 1859 33.56 6 5.9 B 50 95.60 91 44 15.4 94 8 8 50 34.50 99 9 15.5 4.15 99.8 - :<. • i. 99 838.9 1859 33 84 6 8.3 8 59 19.99 99 9 30.6 95 9 8 59 10.00 91 40 50.8 4.16 30 3 8S9 14.16 91 4090.5 1859 33.33 6 11.0 8 53 47.48 91 34 9.5 98 7 8 56 39.90 91 13 16.5 4.16 30.5 896 43.36 91 19 46.0 1859 33.89 6 18.7 8 58 16.95 91 6 97 3 97 9 8 57 50.07 91 36 11.4 4. IS 30.1 8 57 54.99 91 35 41.3 1859 33.03 690.7 8 5997.95 91 99 90.6 98 9 9 1 43.79 91 4 17.9 4.14 30.6 9 1 47.86 91 3 46.6 i-..: 33.89 6 97.9 9 3 90.45 90 57 19.4 99 9 9 1 41.83 91 8 45.0 4.18 30.5 9 1 46.98 91 8 14.4 i- • 33.66 6 97.1 9 3 19.64 91 1 47.3 100 8.9 9 939.60 91 93 59.9 4.14 30.9 9 9 43.74 91 9399.0 1859 39.75 1 •-.: 9 4 16.49 91 16 53.3 101 ti» 9 7 57 34.89 99 Si 44.3 4.63 39.7 7 57 39.45 99 55 11.5 1859 36.16 497.6 '. • 1 ..i.| 99 50 43.9 59 339 7 7 37 48.59 93 34 15.1 16.44 19.9 738 5.03 933355.9 1859 37.91 3 46.5 7 39 49.94 93 X 9.4 1 8 7 39 57.70 94 1091.6 16.41 18.1 7 40 14.11 •Jl 13 3.S !-..• 37.56 3 51.1 7 41 51.67 94 9 19.5 45 7 7 4990.98 99 46 51.3 16.48 19.6 7 49 36.74 99 46 31.7 1859 36.53 3 56.1 7 44 13.97 99 4935.6 It 7.8 7 45 91.08 M 4 56.8 16.49 17.6 7 45 37.44 94 4 40.4 1859 37.30 4 9.5 7 47 14.74 94 0 37.9 50 • 748 44.90 +94 58 31.1 +16.38 —16.9 7 47 0.58 +94 58 14.9 1859 +1 37.86 —4 5.3 7 48 38.44 +94 54 9.6 59 COMPARISON-STARS. C1X Cofnparison-Stars from Bessel's Zones — Continued. « ? •" & Mag Observed Reduction to 1825.0. Mean place, 1825.0. Year of comp. Reduction to begin- ning of year. Mean place. No. a. 8. a. 5. a. S. a. d. a. d. A. m. «. • / /• m. i. n A. m. s. • / II m. t. t if A. m. ». 0 t •J3U 9 7 49 5.28 +24 32 54.8 +16.40 —16.6 7 49 21 .68 +24 32 38.2 1852 +1 37.49 —4 10.4 7 50 59.17 +24 28 27.8 54 e 7 50 44.60 24 23 29.2 16.41 16.3 7 51 1.01 24 23 12.9 1852 1 37.36 4 13.9 7 52 38.37 24 18 59.0 55 9 7 53 21.74 24 59 42.6 16.39 15.3 7 53 38.13 24 59 27.3 1852 1 37.68 4 19.3 7 55 15.81 24 55 8.0 58 8 7 55 57.20 32 57 21.5 16.48 17.1 7 56 13.68 22 57 4.4 1853 1 36.24 4 24.7 7 57 49.92 22 52 39.7 1 341 8 7 45 5.38 25 7 19.8 22.24 17.6 7 45 27.62 25 7 2.3 1852 1 38.02 4 2.2 7 47 5.64 25 3 0.0 49 9 7 46 36.15 24 58 31.7 22.25 • 17.6 7 47 0.40 24 58 14.1 1852 1 37.86 4 5.3 V 48 38.26 24 54 8.8 52 9 7 53 2.95 25 4 58.7 22.24 16.7 7 53 25.19 25 4 42.0 1852 1 37.72 4 18.8 7 55 2.91 25 0 23.2 57 8 7 53 15.47 24 59 46.2 22.35 16.8 7 53 37.72 24 59 29.4 1852 1 37.68 4 19.3 7 55 15.40 24 55 10.1 58 9 7 57 34.70 24 57 23.7 22.35 16.5 7 57 46.95 24 57 7.2 1852 1 37.47 4 27.8 7 59 24.42 24 52 39.4 60 » 8 4 16.23 24 51 58.9 22.36 15.9 8 4 38.48 24 51 43.0 1852 1 37.16 4 41.8 8 6 15.64 24 47 1.2 62 7.8 8 15 53.20 25 6 18.7 22.24 14.1 8 16 14.44 35 6 4.6 1853 1 36.88 5 4.9 8 17 51.32 25 0 59.7 m 344 7 8 9 43.30 24 34 8.2 32.33 14.0 8 10 6.63 24 33 54.2 1852 1 36.76 4 52.8 8 11 43.39 2429 1.4 64 8 8 14 8.58 94 30 16.7 33.34 13.5 8 14 31.92 34 30 3.3 1852 1 36.54 5 1.5 8 16 8.46 34 25 1.7 68 8.9 8 14 36.01 24 6 49.1 23.35 14.0 8 14 59.37 24 6 35.1 1852 1 36.28 5 2.4 8 16 35.65 24 1 32.7 69 8 8 1551.10 35 6 17.1 33.33 12.6 8 16 14.42 95 6 4.5 1852 I 36.86 5X4.9 8 17 51.30 35 0 59.6 m 6.7 8 20 45.17 34 40 1.7 33.33 12.4 8 21 8.50 34 39 49.3 1852 1 36.40 5 14.4 8 22 44.90 34 34 34.9 o 1 8 92 15.96 34 40 34.2 23.34 12.3 822 38.60 24 40 21.9 1852 1 36.34 5 17.2 8 24 14.94 24 35 4.7 r » 8 96 15.71 23 51 18.4 33.37 13.0 8 26 39.08 33 51 5.4 1852 1 35.64 534.8 8 28 14.72 33 45 40.6 79 | 833 8.40 23 20 30.0 23.38 13.5 8 33 31.78 2320 7.5 1852 1 35.05 5 37.7 8 35 6.83 23 14 29.8 85 1 8 38 30.13 32 50 41.2 23.40 U.7 8 38 43.53 22 50 28.5 1852 1 34.57 5 47.2 8 40 18.10 22 44 41.3 87 8.9 8 43 47.23 32 53 48.9 33.39 12.3 8 44 10.62 32 52 36.7 1852 1 34.33 5 57.0 8 45 44.95 22 46 39.7 1 345 9 8 43 24.35 32 57 45.6 29.27 12.6 8 43 53. «2 22 57 33.0 1852 1 34.42 5 56.5 8 45 28.04 22 51 36.5 89 8 8 43 41.32 3253 50.7 39.27 13.3 8 44 10.49 32 52 38.4 1852 1 34.33 S 57.0 8 45 44.82 92 46 41.4 t :n^ 7 6 0 16.60 34 27 24.9 31.79 33.1 6 0 48.39 24 26 52.8 1849 1 28.26 0 3.2 6 2 16.67 24 26 49.6 e 9 6 16 45.35 34 21 38.5 31.73 39.7 6 17 17.07 94 21 8.8 1849 1 28.16 0 37.8 6 18 45.23 24 20 31.0 24 9 6 95 21.15 34 34 12.6 31.67 38.1 6 25 52.83 94 3344.5 1849 1 28.25 0 55.8 6 27 21.07 24 32 48.7 32 9 6 25 52.91 94 3329.5 31.67 38.1 6 26 94.58 24 32 1.4 1849 1 28.32 0 56.9 6 27 52.80 24 31 4.5 33 9 6 96 46.93 84 58 47.5 +31.65 37.5 6 27 17.87 34 58 30.0 1849 1 28.52 0 58.7 6 28 46.39 24 57 21.3 34 396 8 4 55 43.90 36 11 38.9 —37.60 49.9 4 55 4.60 26 10 39.0 1850 1 32.59 +2 18.6 4 56 37.19 26 13 .... 1 8 5 3 9.58 36 14 59.7 37.66 48.1 5 1 31.92 36 14 11.6 1850 1 32.76 2 4.9 5 3 4.68 36 16 16.5 2 405 9 5 10 6.40 26 4 44.7 53.23 43.3 5 9 13.17 96 4 2.5 1850 1 33.75 1 48.8 5 10 29.92 26 5 51.3 3 7.8 5 19 23.63 25 0 36.8 53.19 40.6 5 18 30.44 34 5956.3 1850 1 32.13 1 28.6 5 20 2.57 25 1 24.8 c 9 5 31 3.27 26 37 2.7 53.35 38.5 5 30 9.93 26 36 24 2 i«jo 1 33.17 1 35.0 5 21 43.09 36 27 49.2 5 8 5 21 56.13 36 33 19.4 53.37 33.4 5 21 2.76 36 32 46.0 1849 1 29.50 1 19.9 5 22 32.26 26 34 5.9 6 9 5 95 4.06 26 36 26.6 53.38 37.4 5 24 10.68 26 25 49.2 1849 1 29.46 1 13.4 5 25 40.14 26 27 2.6 7 7 5 27 9.77 96 48 59.0 53.43 36.4 5 26 13.34 26 48 32.6 1850 1 33.51 1 12.0 5 27 46.85 36 49 34.6 1 7 5 28 57.02 26 31 0.4 53.40 36.1 5 38 3.62 36 30 24.3 1849 1 39.57 1 5.4 5 29 33.19 26 31 29.7 8 7 5 29 47.16 35 48 0.3 53.34 36.6 5 28 53.82 25 47 23.7 1849 1 29.07 1 3.6 5 30 22.89 35 48 27.3 e 9 5 45 38.81 36 36 48.7 53.51 31.2 5 44 45.30 26 36 17.S 1849 1 29.63 0 30.4 5 46 14.93 96 36 47.9 11 9 5 53 52.68 36 21 17.7 53.55 28.8 5 52 59.13 26 20 48.9 1849 1 29.59 +0 13.2 5 54 28.72 36 21 2.1 14 M 6 0 54.82 36 9 45.0 53.55 27.0 6 0 1.27 26 2 18.0 1849 1 29.37 — 0 1.6 6 1 30.64 26 2 16.4 15 9 6 1 46.40 96 1 14.0 53.55 96.7 6 0 52.85 26 0 47.3 1849 1 29.35 034 6 2 22.20 26 0 43.9 16 9 6 10 56.16 25 46 35.8 53.57 24.3 6 10 2.59 25 46 11.6 1849 1 29.16 0 22.6 6 11 31.75 25 45 49.0 20 7 6 14 50.64 25 8 15.3 53.53 33.7 6 13 57.11 25 751.6 1849 1 28.71 0 30.8 6 15 25.82 25 7 20.8 21 9 6 16 11.49 35 36 33.5 53.58 23.8 6 15 17.91 25 35 47.0 1849 1 29.02 0 21.2 6 16 46.93 25 35 25.8 22 8.9 6 35 9.70 35 3 13.3 53.56 30.7 6 24 16.14 35 351.6 1849 1 28.60 0 52.4 6 25 44.74 25 1 59.2 30 9 6 98 11.40 34 58 44.6 53.57 19.8 6 27 17.83 34 58 24.8 1849 1 28.52 —0 58.7 6 28 46.35 24 57 26.1 34 523 7.8 4 56 36.10 26 11 55.1 34.49 77.7 4 55 3.61 26 10 47.4 1850 1 32.59 +2 18.6 4 53 36.20 26 13 6.0 1 M 5 17 49.11 96 36 12.9 34.78 54.7 5 16 14.33 36 35 18.2 1850 1 33 07 +1 33.5 5 17 47.40 26 26 51.7 4 9 6 18 4.80 25 38 18 9 35.02 19.1 6 16 29.78 25 27 59.8 1849 1 28.92 —0 36.2 6 17 58.70 25 27 23.6 23 8 6 19 30.61 35 43 30.6 35.08 18.0 6 17 55.53 25 43 12.6 1849 1 29.09 0 39.2 6 19 24.62 25 42 33.4 25 9 6 21 8.80 25 15 28.6 34.97 17.4 C 19 33.83 25 15 9.2 1849 1 28.76 0 42.6 6 21 2.59 25 14 26.6 36 9 6 31 42.26 +25 32 16.0 — 1 35.05 —16.8 6 20 7.21 +25 31 59.2 1849 +1 28.95 —0 43.8 6 21 36.16 +25 31 15.4 28 NOTES TO COMPARISON-STARS FROM BESSEL S ZONES. For N°- 1, the 8 as given in zone 396 has been rejected, and only that of zone 523 been retained. cz COMPARISON-STARS. For N°- 3, the observation of zone 405 has been employed, although the right-ascensions differ by 16*- The error seems not improbable, and has been assumed. For N°- 22, the scale reading has been assumed as 1049, instead of 1089, making the observed apparent 3 +25° 36' 9".8 ; and for 1849, the mean 8 +25° 35' 25".8. For N°- 45, there is evidently a mistake of one division (=3') in the observation, making the declination observed by Bessel +24° 13' 21".6. For N°- 95, zone 278, the scale-reading has been assumed as 990, instead of 1010, making tin- observed apparent 8 +22° 9' 8".7, and for 1852 the mean 8 +22° 2' 30".6. For N°- 97, the 8 of zone 275 has been retained, and that of zone 278 rejected. The Argelander Zones, that copious fountain of accurate positions of stars which are to be met with in no other catalogue, furnish forty-one places of southern stars ; the original observa- tions of which, together with their reductions, here follow : Comparison-Stars from Argelander' a Zones. Rcf. Mo. Zone and Ho. Owcrvcd Reduction to 1850.0. Mean place, 1850.0. Teat of Oomp Reduction to be- ginning of year. Mean place. a. 8. in a. ,nf). a. * 8. In a. ,.,». a. 8. k.m. •. • i a •. n *. m. I. • i a *. m. i. • i n Ill 919, 71 16 43 97.51 —96 39 18.8 -31.38 —10.7 16 49 56.13 —88 3999.5 1850 . . . . 16 49 58.13 —98 39 99.5 115 • 16 55 13.48 96 59 90.4 31.37 —19.4 16 54 49.11 98 59 39.8 1850 . . 16 54 41.96 965941.4 113 814, 54 16 49 44.00 96 5948.9 39.44 +94.6 16 49 11.56 96 59 17.6 1850 . . . 16 49 11.81 96 52 19.3 113 • 16 50 37.43 96 58 57.6 39.44 99 8 16 50 4.99 96 58 34.8 1850 . . . . 16 50 4.99 96 56 35.3 115 63 16 55 14.48 97 0 6.1 33.44 89.1 16 54 49.04 96 59 44.0 1850 117 7« 17 7 40.30 97 93 85.5 39.43 14.9 17 7 7.87 87 93 11.3 1850 . . . . 17 7 7.73 9793 9.6 190 84 17 13 54.89 97 31 3S.8 39.43 +11.5 17 33 39.39 97 31 94.3 1850 . . . . 17 13 22.27 97 31 24.9 131 917, 81 18 4 40.96 85 11 6.4 33.08 +10.6 18 4 7.90 95 10 55.8 1850 . . . . 18 4 7.37 35 10 54.0 1*7 918, 11 17 39 14.00 18 8 40.0 33.19 — 1.5 17 38 40.88 18 8 41.5 1851 +3.50 —1.86 17 38 44.48 18 8 45.9 199 19 17 46 59 85 18 15 94.5 33.19 9.8 17 48 19.13 18 15 27.3 1851 3.51 —1.19 17 46 89.58 18 15 29.1 141 • 18 9 35.09 1650 44.7 33.11 6.9 18 9 1.96 18 SO 50.9 1851 3.53 +0.60 18 9 5.49 18 SO 49 6 148 81 18 94 19.60 19 4 16.5 33.10 — 7.3 18 23 39.50 19 4 23.8 1851 +3.53 +9.07 18 33 49.99 19 4 94.0 141 919, 49 18 9 35.89 18 SO 58.4 33.30 + 3.9 18 9 1.99 18 SO 59.5 1851 +3.53 +0.80 138 290, 96 18 4 10... 95 10 33.3 • . —19.4 .... 85 10 58.7 1850 133 893,38 17 56 98.00 87 5081.5 33.64 + 9.7 17 55 54.16 97 50 11.9 1850 . . . . 17 55 54.16 97 50 11 9 13S 46 18 094.37 97 45 13.4 33.85 +11.7 17 59 50. M 9745 1.7 1850 . . . . 17 59 50.59 27 45 1.7 141 .-.•-. M 18 935.50 18 50 50.6 33.69 + 0.9 18 9 1.81 18 SO 49.7 1851 +3.53 +0.80 148 aa 18 94 13.94 19 4 96.9 33.73 — 1.1 IB 93 39.51 19 4 27.3 1851 +3.53 +9.07 123 900,111 17 81 54.60 17 41 7.3 40.59 — 0.9 17 91 14.08 17 41 7.5 1851 +3.49 —3.37 17 91 17.73 17 41 19.1 119 304, 88 16 49 51.39 96 58 0.9 39.37 —19.9 16 49 11.95 96 5990.1 1850 113 80 16 50 44.50 96 56 15.6 39.77 —91.5 16 50 5.13 98 58 37.1 1850 136 306, 91 18 4 48.50 95 11 6.9 40.96 +19.6 18 4 7.54 95 10 53.6 1850 138 95 18 781.45 95 45 7.1 41.00 + 3.0 18 6 40.45 9545 4.1 1850 . . . . 18 6 40.46 35 45 4.0 138 308, 97 18 7 94.16 9545 6.4 43.68 + 9.6 18 6 40.48 95 45 3.8 1850 146 43 18 16 9.88 96 33 38.6 43.71 -19.6 18 15 19.17 • 96 3351.9 1850 , , . . 18 15 11.17 96 33 51.9 147 47 18 19 6.58 96 4943.1 —43.79 —15.7 18 18 99.86 98 4958.8 1850 . . . . 18 18 99.86 964958.8 119 388,81 16 48 38.80 96 S3 51.0 +33.19 +30.8 16 49 11.99 96 59 90.9 I-.H 113 83 16 49 31.73 86 57 3.5 33.11 99.4 18 50 4.84 965334.1 1850 114 85 16 51 96.00 97 1 44.6 33.11 97.4 16 51 59.11 87 1 17.9 1850 11.1 90 16 54 8.70 87 0 8.0 33.10 97.6 16 54 41.80 96 59 40.4 :-:.'. 116 99 1659 11.10 97 19 11.9 33.08 99.8 16 59 44.18 97 11 48.4 1850 117 106-7 17 6 34.54 979395.8 33.05 +17.8 17 7 7.59 97 93 8.0 MM l*i us 17 19 49.10 87 31 37.9 33.04 +13.8 17 3389.14 97 31 94.1 1-.," 116 3*1, 37 17 10 37.59 17 35 50.7 39.38 +14.0 17 11 9.90 17 35 38.7 1851 +3.49 —4.94 17 11 13.39 17 35 40.9 ua M 17 90 41.05 17 41 99.1 39.35 18.9 17 91 14.40 17 41 9.9 l-.M 3.49 3.37 116 70 17 31 95.48 17 59 58.5 39.39 8.5 17 31 57.80 17 59 50.0 1851 3.50 9.44 17 39 1.30 17 59 59.4 1*7 81 17 36 6.64 18 9 59.5 39.30 7.4 17 38 40.94 18 9 45.9 1851 3.50 1.86 U6 63 17 46 46.79 18 16 33.3 39.98 + 4.8 17 46 19.00 18 15 98.5 1651 3.51 —1.19 141 136 18 8.99.80 18 50 45.9 39.85 — 9.6 18 9 9.05 1850 48.4 1851 3.53 +0.80 146 171 18 83 7.19 — 1» 4 90.9 +3994 — 6.1 18 83 39. M —It 4 37.0 1851 +3.63 +3.07 COMPARISON-STABS . CXI The Greenwich Twelve-Tear Catalogue gives us eight stars, and its welcome supplement, the Greenwich Catalogue for 1850.0, thirty-five more. The last mentioned addition was received after the preparation of a catalogue for final adoption, but the new material was too important to be lost, and the computations were, therefore, recommenced from the point at which these places could be incorporated. The comparison-star used at Greenwich on the 8th December, 1849, is, however, unfortunately not in this catalogue, and a trustworthy place can nowhere be found. Five of the stars in the two lists are identical, but the materials afforded by each catalogue are separately given for the sake of greater convenience. Comparison- Star a from the Twelve-Tear Catalogue. 1 * fi i NUM. Hag. Mean year. a 1840.0. o •o £ N. P. D. 1840 0. 1 Ik. O 1 Yr.ofcomp. Mean place for beginning of year. No. a- Ann. Pr. 3- Ann.Pr. k. m. c. 0 / // A. m. t. «. ° t n „ 478 125 Tauri .... 6 1845 5 39 49.53 4 64 11 59.14 7 1849 5 30 32.94 +3.712 + 25 48 24.21 + 2.58 e SIS 139Tauri . • . . 5.8 1841,4 5 48 4.13 3 64 4 23.83 * 1849 5 48 37.60 3.720 25 55 46.09 + 0.99 13 587 c Geminorum 3.4 1841,3 6 34 5.14 22 64 43 3.52 19 , 1849 6 34 38.40 3.695 35 16 30.48 — 3.03 35 698 83 Geminorum . . 7 1841 7 38 59.03 3 66 38 9.73 7 I 1853 7 39 42.21 '3.598 33 30 9.18 8.44 i 709 1 Cancri .... 6 1845 7 47 54.05 8 73 47 17.71 S 1853 j 7 48 35.04 3.416 16 10 52.80 9.14 51 745 ACancri .... 8 1838,5 8 11 0.68 19 65 28 45.97 17 1852 8 11 43.68 3.532 24 29 3.58 10.89 64 775 43)- Cancri .... 4.5 1843 8 34 0.99 9 67 57 39.70 8 1852 , 8 34 43.91 3.493 21 59 50.10 12.53 S 789 1838 8 48 12.76 S 68 2 30.93 6 1852 8 48 54.40 3.469 21 54 57.68 13.47 93 795 Lalande 17690 . 8 1838 8 49 43.95 5 68 13 3.33 6 1893 8 50 25.52 3.463 21 44 14.07 13.57 94 809 1836 9 3 35.87 5 68 40 14.33 6 1858 9 4 16.47 3.433 + 31 16 52.62 —14.44 101 1467 Plant XVIf 43 . «i 184C 17 10 34.69 5 107 34 58.66 1851 17 11 13.03 +3.485 — 17 35 44.55 — 4.34 lie CX11 COMPABJSOM-STAK8 Comparison-Stars from the Greenwich Catalogue for 1850.0. J 0 VIM.'. MM Mi .11, year. at 1 •3 6 z N. P. D. 1 •5 i f Mean place tot bctiuinf of year. No. a. Ann. Pr 8. Ann. P «,»». .. • / n k.m. f. t. • I n „ 335 Piaiai IV 987 . . 7 18S1.9 4 56 36.57 9 63 46 53.37 1 1850 4 56 36.5C +3.704 +96 13 6.8 + 5.48 1 35* 1859.7 5 3 4.61 5 (3 43 41 .31 • 1850 5 3 4 (4 3.711 96 16 19 8 4112 3(1 1859. 8 5 10 99.36 63 54 11.81 1 1850 5 10 99.37 3.711 96 5 49.1 I4H 3(3 Piuxi V 41 . . (.7 1859.7 5 11 34.43 *, 69 19 1.30 3 1850 5 11 34.43 3.760 97 47 58.7 4.91 a 376 1850.5 5 17 47.94 4 63 33 4.66 4 1850 5 17 47.93 3.795 95 96 55.4 3 67 A 381 MSTauri .... 6 1859.1 590 954 1 64 58 37.10 1 1850 590 9.54 3.685 95 1 99.9 3.48 1 | 383 1859.6 5 21 43. 9C 9 63 39 14.31 9 1850 5 91 43 97 3.798 96 97 45 9 _ _» 395 Piaixi V 145 . . 7 '1853.1 5 97 46.91 9 63 10 99.97 9 MM 5 97 46.91 3.740 96 49 30.7 9.81 I 401 1859.1 5 99 36.64 3 63 98 30.92 4 1849 5 99 39.90 3.733 96 31 97.3 2 65 409 IJSTauri .... 6 1851. 1 5 3096.55 7 64 11 33.83 3 1849 530 92.84 3.719 95 4894.6 9.58 406 I.alande 10669 . . 9 1859.9 5 39 16.17 6 63 98 5.60 ( 1849 5 39 19.53 3.734 96 31 51.5 9.49 9 499 Lalande 11 108 . . 8i 1851 9 544 38.56 1 63 36 57.33 1 1849 5 44 34.81 3.733 98 23 1.5 1.34 10 496 1859.3 S 46 18.57 5 63 33 13.07 S 1849 5 46 14.89 3.735 96 96 45.9 1 90 [ 1 433 139Tauri .... 5.6 1859.8 548 41.30 3 (4 4 19.63 3 1849 348 37.56 3.730 9555 46.6 0.99 19 438 RUmkcr 1673 . . . . 1859.1 5 54 7.62 6 63 4331.39 6 1849 5 54 3.94 3.731 96 16 30.6 0.51 13 439 HUraker 1680 . . 8 1851.4 554 39.90 9 .63 39 1.83 3 1849 554 98.46 3.733 36 90 57.9 0.48 14 440 Piazzi V 308 . . 7 1851.1 S 54 55.74 I 64 33 92.34 9 1850 5 54 55.74 3.707 35 98 37.7 -f- 0.44 / 451 Lalande 116M . . 8 1859.1 6 1 34.30 ( 63 57 44.01 ( 1849 6 1 30.57 3.794 96 9 K.I — 0.14 15 452 5 Geminnrum . . 6 l-M.l ( 2 90.35 4 65 33 8.48 3 1849 6 2 16.67 3.678 94 96 51.7 0.91 t 453 Lalande 11714 . . 9 1859.1 6 398.04 3 63 59 18.68 4 1849 6 2 92.31 3.724 36 0 41.7 0.91 16 457 Lalande 11654 . . 8 1859.8 ( 6 8.93 5 64 37 37.57 S 1849 6 6 5.99 3.705 959993.1 0.54 17 458 I.alandr 11946 . . 9| 1853.9 6 7 38.84 4 64 97 38.08 4 1849 6 7 35.19 3.709 95 3292.8 0.67 18 m Lalande. | [j*^ ; !* 1859.7 6 9 99.88 9 64 94 SB. 45- 9 1849 6 926.16 3.711 35 35 9.6 0.83 19 467 1859.9 6 11 35.54 4 64 14 15.44 3 1849 6 11 31.81 3.716 *K A* A* 7 1.01 90 470 Piazzi Tl 78 . . T 1853.9 6 15 99.36 9 64 5240.58 9 1849 6 15 95.65 3.696 ! 25 7 90.9 1.35 11 473 Lalande 19237 . . 9 1851.6 6 16 50.62 4 64 24 37.41 9 1849 6 16 46.90 3.709 35 35 24.2 1.47 99 479 Lalande 19336 . . 8» 1851.9 6 19 97.55 1 64 17 31.33 1 1849 6 19 23.83 3.713 25 49 30.6 1.70 95 485 1859.7 6 91 5.98 2 64 45 35.04 9 1849 6 21 2.27 3.699 25 14 27.0 1 84 ~, 487 Lalande 19395 . . 9 1859.1 6 91 14.41 1 64 13 91.66 9 1849 6 91 10.68 3.714 95 46 40.8 1.66 97 488 1853.0 6 21 39.95 9 64 28 45.58 9 1849 6 91 38 94 3.706 25 31 16 5 1 -'i 490 I.alande 12554 . . 8 1851.9 6 95 47.97 1 64 58 6.48 1 1849 6 95 44.37 3.692 25 1 56.0 I .OJf 9.95 30 491 Lalandt 19557 . . 9 1851.9 6 95 50.33 1 65 15 18.07 1 1849 6 95 46.64 3.684 94 44 44.4 9.36 31 495 1852.0 6 97 94.78 1 65 27 13.30 !• 1849 6 27 31.09 3.677 24 32 49.3 9.3V 32 496 1 *3 -> . 0 6 97 56.36 1 65 28 57.74 \ 1849 6 97 59 67 24 31 49 94-1 •)•! SOS 97 Oeminorum . . 3.4 1859.1 6 34 49.11 8 64 4339.11 7 1849 ( 34 38.37 3.695 95 16 32.0 .« 3.03 «W 35 573 89 Geminnnim . . 7 1852.9 7 3935.18 8 66 29 33.60 7 1852 7 39 49.38 3.598 23 30 9.S 8.44 | 578 84 GemiHonim . . 6.7 1859.9 7 44 6.09 4 67 17 5.44 4 1859 7 44 13.94 3.574 99 49 37.0 8.80 1 589 Lalande 15707 . . 9 1859.9 7 55 8.96 3 65 4 30.09 3 1859 7 55 15.48 3.615 94 55 10.8 9.66 58 593 Bradley 1158 . . 7 1852.8 7 57 42.73 6 (7 7 0.70 5 1852 7 57 49.85 3.569 99 52 39.6 9.85 I me ACancri .... 6 1859.3 8 11 36.67 7 65 30 34.61 7 1853 8 11 43.89 3.583 94 29 3.7 10.89 64 613 7 1859.9 8 17 43.98 4 64 58 37.71 4 1852 8 17 51.15 3.585 25 0 59.6 11.34 (17 -I'M •;,„,.„ .... (.7 1859.9 8 19 49.67 4 65 21 41.55 4 Mi 8 19 49.89 3.573 94 37 55.5 11.48 n 619 »«' C'anrri .... 6 1859.9 8 99 37.83 3 65 95 9.19 9 1853 899 44.97 3.568 34 34 34.5 11.69 I 693 JiTani-n .... 6 1853.2 891 7.58 6 65 94 39. 14 8 1859 8 94 14.71 3.565 94 35 4.3 11.80 r (31 I3y Cancri .... 4.5 1859.1 8 34 35.89 93 67 59 45.94 23 1852 8 34 49.88 3.493 91 59 49.0 19.53 i 640 Lalande 17513 . . 9 1859.9 8 45 90.93 6 (7 755.17 6 1859 8 4597.95 3.494 99 51 37.6 13.95 89 641 Lalande 17598 . . 7.8 1853.9 8 4537.99 4 67 19 58.19 3 859 8 45 44.90 3.492 99 4635.3 13.97 t (45 1859 9 8 48 46.55 4 (8 4 34.63 4 859 8 48 54.48 3.469 91 54 58.9 13.47 93 (59 Lalande 18105 . . 9 1859.2 9 3 19.64 3 68 57 44.97 3 853 9 3 19.49 3.499 91 1 48.4 14.38 100 8(1 859.9 9 4 9.58 5 68 49 40.91 5 1859 9 4 16.43 +3.439 +91 16 51.1 -14.44 101 COMPARISON-STARS. CX111 For the stars from the Histoire Celeste of Lalande, the British reductions made and published under the superintendence of Mr. Baily have been employed, but with some endeavor towards critical scrutiny. The numbers of this catalogue are also here employed for reference. One zone, however, that of 1796, March 4, seemed to give places differing so much and so uniformly from other determinations of the same stars, as to render it advisable to reduce this anew, which was accordingly done. The tables of Hansen and Nissen were found to be computed with entire correctness, and the only possible source of discordance to be in the declinations of the fundamental stars selected from Piazzi, as the "basis of the reduction. The stars chosen for determining the constants anew were these : From Kiimker's Catalogue, N08- 2353, 2383, [2404,] 2477, 2503, 2504, 2533, 2558, 2785, 2799, 2840, 2896, 2920, 2955, 2972, 3004, 3012, [3013,] 3016, 3023, 3047, 3097. From the Twelve-Year Catalogue, Noa- 769, 770, [775,] 802, 804, 809. From Argelander's Catalogue, N°- 207. Those of the above mentioned stars whose numbers are inclosed in brackets proved to have been ill observed by Lalande, and were, consequently, excluded. The result indicates the need of a correction of — 2". 3 to the values given by the' tables published by Prof. Schumacher, in his Hulfstafeln, and used for the preparation of Baily's edition of the Histoire Celeste. The average correction to Lalande's declinations for other zones at the same altitude is — 3".l, if Bessel be the standard. Comparison- Stars from Lalande. Page H. C. tfo. Catalogue. Mean place 1800.0. Year of comparison. Red. to year of comp. Mean place for beginning of year. No. a d- in a. in 0. a. d. A. m. t. « t 11 m. t. / // A. m. s. » i n 904 9531 4 53 31.37 4-28 8 28.3 1850 +3 5.13 +4 40.4 4 56 36.50 +26 13 8.6 1 139, 143 9944,5 5 826.50 97 44 27.3 1850 3 7.98 3 37.1 5 11 34.48 27 48 4.4 a 145,304 10331-3 5 16 58.16 94 58 19.7 1850 3 4.23 3 0.6 5 20 2.39 25 1 20.2 c 143 10510 5 94 40.02 9647 7.1 1850 3 7.02 2 27.3 5 27 47.04 36 49 34.4 d 145 10805 527 20.65 95 46 16.6 1849 3 1.79 9 13.1 5 30 22.42 35 48 29.7 e 145 10069 5 99 9.19 26 2946.4 1849 3 3.92 9 5.4 & 32 12.11 36 31 51.8 9 310 11108 5 41 33.85 26 21 49.1 1849 3 3.91 1 12.5 5 44 35.76 26 23 1.6 10 145 11930 5 45 35.33 35 54 49.0 1849 3 2.29 055.3 5 48 37.61 25 55 44.3 12 310 11441 5 51 49.97 35 26 14.3 1850 3 5.38 4-0 29.0 5 54 55.35 25 26 43.3 / 310 11684 5 58 28.22 98 9 16 8 1849 3 2.50 0 0.0 6 1 30.72 26 2 16.8 15 310 11714 5 59 19.70 26 0 45.7 1849 3 2.40 —0 3.6 6 2 22.10 26 0 42.1 16 310 11854 6 3 3.56 25 22 46.3 1849 3 1.47 0 19.6 6 6 5.03 25 22 36.7 17 145 11946 6 5 33.34 25 39 47.1 1849 3 1.72 0 26.0 6 7 35.06 25 32 21.1 18 145,310 11976,8 6 6 23.32 35 35 36.9 1849 3 1.78 0 33.9 6 925.10 25 35 3.0 19 145,310 13197,9 6 12 24.25 25 8 19.15 1849 3 1.10 0 59.6 6 15 25.35 25 7 19.5 31 145 12237 6 13 45.58 25 36 36.7 1849 3 1.75 1 5.4 6 16 47.33 25 35 31.2 22 145,310 12336,7 6 16 22.34 35 43 51.6 1849 3 1.82 1 16.6 6 19 24.16 25 42 35.0 25 145 12395 6 18 7.65 25 48 5.0 1849 3 1.96 1 24.1 6 21 9.61 25 46 40.9 27 145 12554 6 22 43.27 25 3 44.3 1849 3 0.87 1 43.7 6 25 44.14 25 2 0.6 30 145 12557 6 23 46.62 94 46 32.1 1849 3 0.47 1 43.9 6 25 47.09 24 44 48.2 31 145 13666 6 35 44.71 34 59 28.0 1849 3 0.73 1 56.6 6 28 45.41 24 57 31.4 34 316,145 13860,9 6 31 37.36 25 18 50.1 1849 3 1.07 2 21.6 6 34 38.43 25 16 28.5 35 51 1496 1 7 30 45.88 14 39 59.3 1859 2 56.38 6 48.5 7 33 42.26 14 33 3.8 42 51 15125 7 36 0.01 16 0 14.4 1852 2 57.80 7 10.4 7 38 57.81 15 53 4.0 44 914 15146 7 36 34.97 23 37 24.4 1852 3 7.30 7 13.2 7 39 42.27 3330 11.3 i 214 . 15221 7 38 43.35 24 16 38.2 1852 3 8.04 7 22.0 7 41 51.39 24 9 16.3 45 911,214,273 15312-4 7 41 7.39 23 50 8.8 1853 3 6.03 7 31.8 7 44 13.31 22 42 37.0 I 51 15338 7 41 55.13 16 6 18.7 1853 2 57.71 7 34.8 7 44 52 83 15 58 43.9 4G 314 15401 7 43 Q7.81 24 53 33.4 1853 3 8.53 7 41.5 7 46 36.34 24 44 50.9 47 314 15113 7 43 44.64 4-24 44 97.1 18J3 4-3 8.34 —7 42.6 7 46 52.98 4-94 36 44.5 48 CX1V COMPAKISON-8TAB8. Comparison- Stars from Lalande — Continued. Par- II I'. Vo. Caul1«cc for beginning of year No. «• d- in II. ta*. a. 0. ». «. i. • / H m. • / it k. M. «. • / n H I54W 7 4.1 37.49 + 16 18 50.9 1859 +3 57.80 -749.9 7 48 35.99 +16 11 0.3 51 914 ISMS 7 47 46 51 93 49 S3. 0 !- • 3 6.76 7 58.9 7 50 13.27 93 34 53.1 53 114 15608 74930.66 94 87 6.9 :- 1 3 7.60 t 6.0 7 59 38.96 94 19 0.9 55 l« 15707 7 91 7.99 95 396.9 1859 3 8.91 8 16.5 7 55 15.43 94 55 9.7 58 si4 15795 7 54 45.07 93 1 9.9 1- ' 3 5.44 898.8 7 57 50.51 93 59 49.4 I » 1COC8 8 930.03 16 13 91 3 '- • 956.97 857.1 8 597.00 16 4 24.2 61 an • i. 8 7 11 06 99 6 19.1 1859 3 3.47 9 15.4 8 10 14.53 91 57 3.7 63 2I4.ST9.9PB • -- • . 8 8 37.98 94 3834.9 1859 3 P. 50 991.1 8 11 43.78 94 29 3.1 • ; •M 16447 A 13 i 11 94 34 48.5 1559 3 3.71 937.9 8 16 5.89 94 95 10.6 68 t!4 16464 8 13 30.16 94 11 19.9 1853 .'I 5.58 9 3».7 8 16 35.74 94 1 33.9 H 914. S86 16.117-9 8 14 44.55 25 10 53.9 lesa 3 6.69 9 44.4 X 17 51.94 35 1 8.8 m 911 16589 8 16 SS.M 91 48 13.1 1859 3 2.54 9 50.6 8 1999.34 91 38 93.5 70 214.279,286 16597-9 8 IK 43.47 94 47 52.6 . 1859 3 6.06 951.8 8 19 49.53 94 38 0.8 n 911 8 18 41.68 91 30 56.2 i88i 3 9.05 9 59.0 8 91 43.73 91 90 57 2 74 914, tM 16685,7 8 19 39.66 94 44 41.5 1859 3 5.74 10 *.8 8 » 45.41 94 34 38.6 0 S86 16763 8 91 0.56 94 45 17.9 »48S9 3 5.65 10 6.3 8 94 15.91 94 35 9.6 T 911 17013 8 98 10.98 90 46 48.6 1659 3 0.57 10 19.3 8 31 11 55 90 36 14.5 81 148,212^4,286 17143-4 8 31 49.95 99 10 43.0 1859 3 1.85 10 46 5 8 34 43.10 91 59 56 5 » 311 17513 84926.06 93 3 5.5 1H59 3 1.94 11 24. 8 45 28.00 93 51 41.4 • 219.954 17514,5 8 4927.50 90 49 48.8 1859 9 59.46 11 24. 8 4526.96 9031 94.7 T 919,914 175198,8 8 49 43. H 99 58 14.6 1859 3 1.83 11 95. 8 45 45.38 99 46 49.5 t 919 8 4795 60 91 56 1 9 1859 3 0.31 11 41. 85095.94 91 44 90.8 94 919 17937 8 55 17.38 91 18 46.5 1659 2 59.06 12 7. 8 S8 16.44 •JI 6 31.4 97 919 18105 9 0 90.78 91 14 15.1 1859 2 58.56 1933. 9 3 19.34 21 151.7 100 919 18133 9 1 7.87 +91 99 3C.3 1859 2 58.74 1995.9 9 4 16.61 91 17 0.4 101 587 30556 16 37 50.45 —96 23 44.7 1850 3 4.76 545.6 16 40 55.21 98 98 30.9 110 967 30874 16 48 53.77 36 56 14.1 1850 3 6.05 4 59.7 16 51 59.89 +97 1 13.8 114 343 31543 17 10 57.74 17 99 35.4 18-11 9 57.71 3 30 8 17 13 55.45 — 17 33 6.2 199 170,343 31791,9 17 18 19.76 17 38 14.9 IM! 358.09 958.5 17 31 17.78 17 41 12.7 133 170,343 31931,9 17 93 30.04 17 40 59 8 1851 258.13 2 40.8 17 '.!.-> 18.17 17 43 33.6 124 170 33496 17 35 45.58 18 1 4.6 1851 2 58.73 1 41.4 17 38 44.31 18 2 46.0 127 170 31708 17 43 23.78 18 14 311.0 ISM 2" 59. OK 1 3.0 17 4699 86 18 1523.0 199 m 3*797 17 44 4.68 98 1 2.9 1850 3 9.09 1 37 17 47 13.77 98 9 5.6 130 568 39974 17 50 19 04 97 48 36.8 1850 3 8.89 0 35.5 17 5397.86 97 49 12.3 139 568 . :.; 17 36 41.49 97 44 48.0 1850 3 8.74 -0 7.6 17 59 50.16 37 44 55.6 135 5M 3339J 18 1 9.34 35 10 55.9 1850 3 5.00 +0 11.3 IS 4 7.34 95 10 44.6 136 567,568 33497-8 18 1 37.39 37 32 21.1 1850 3 8.43 0 14.0 18 445.71 97 39 7 1 137 171 33598 18 6 5.94 1851 90.1 185! 2 59 91 0 33.9 18 9 S.8S 1850 46.3 141 171 33748 18 9 37.56 18 56 3.2 1851 | v. vi 0 49.6 18 13 37.55 18 55 13.6 144 9C7 33B55 18 19 19.64 96 34 51.6 1850 3 6 95 1 0.9 18 IS 19.59 96 33 51.4 146 S87 33969 18 15 IS. 78 —96 44 13.9 1850 +3 7.14 +1 13.5 18 18 99.99 —96 43 0.4 147 For N*' 11946 the « it twomed lo be Im. leu than recorded. This error wu transferred lo the Nautical Almanac, and to both >erie< of the Cape OhMnralioM. For N' 18139 the « I* aMuinnl to !»• 10«. greater than recorded. For N'- 171 13 an error of IS" in i If aniimcd. For N*- 17937 an error of 15" in I i* amimcd. Other observations still may be found in the catalogues of Riiniker, Piazzi and Taylor, the zones of Lamont and the observations of Mr. Maclear at the Cape of Good Hope. These are appended, as well as the manuscript observations of Professor Briinnow at Ann Arbor, already mentioned, and a small table containing such other observations as have been found of tin- comparison-stars which are identified and employed in these computations. COMPARISON-STARS. Comparison-Stars from BumTcer. cxv No. Catalogue. Mag. a J838.0. No. ol obs. Ann. Proc. d 1830.0. Vo. of nh>. Ann. Free. Yi-arof'cnni. Reduction. M^au place for beginning of year. No. i" a- in d- fl- d. k.m. i. «. 0 / II tf i n it, m. s. o / ;/ 1499 6 5 29 34.37 2 -(-3.708 +25 47 50 36 2 +3.44 1849 +48.24 +0 34.1 5 3J 2-2.61 " + 25 48 24.5 a 1673 5 53 15. -.1 1 3.727 26 16 24 24 1 0.59 1849 48.511 7.-« 5 54 3.71 28 16 31.5 13 1660 8 5 53 39.52 2 3.798 26 20 53.52 1 0.55 1849 48.57 6.t 5 54 28.09 26 21 0.3 14 1685 5 54 3.59 16 3.704 25 26 35. -X! 10 +0.49 1830 51. (9 + 6.t 5 54 55.48 25 23 43.0 / 1737 6 6 0 43 10 5 3.722 26 2 16.88 5 —0.10 1849 48.42 - l.i 6 41 30.52 26 2 15.7 15 1744 7 6 1 -28.33 1 3.675 24 27 2.01 1 0.15 1849 47.82 2.1 6 2 16 15 24 26 59.9 S 1783 6 6 47 04 1 3.701 25 3-3 23.99 1 0.59 1849 48.23 8.1 6 7 35.27 25 32 15.8 18 1979 3 6 33 50.37 16 3.691 25 17 9.11 13 2.95 1849 47.95 0 38. t- 6 34 38.31 25 16 30.3 35 3335 6 7 47 40.39 3 3.414 16 13 19.63 9 9.07 1852 54.69 2 35. i- 7 48 35.08 16 10 5J.8 51 2372 7 52 37.01 1 3.406 16 0 34.13 1 9.46 1852 54.54 2 32.0 7 53 31.56 1558 2.1 56 2476 6 8 10 46.32 3 3.581 24 31 56.65 3 10.82 1852 57.34 2 53.9 8 11 43.66 24 29 2.7 64 2516 7.8 8 16 54.07 2 3.585 25 4 4.29 2 11.31 1832 57 36 3 1.0 8 17 51.43 25 1 3.3 m 2545 8 21 47.79 1 3.566 24 37 43.39 1 11.67 185-3 57.06 3 6.' 8 22 44.85 24 34 36.7 0 Nachtr.VIII.13 8 23 30.76 1 3.374 1549 30.15 1 11.75 1852 54.05 3 S.t 8 24 24.81 15 46 21.6 75 Nacbtr. VIII. 19 8 8 30 16.00 1 3.467 20 39 28.60 1 li. 22 1852 55.52 3 167i 8 31 11.52 20 33 12.4 81 3613 8 31 30.14 1 3.427 18 49 33.. Vi 1 12.30 1852 54.88 3 17.5 8 32 25 02 18 46 16.0 83 2624 4.S 8 33 46.88 6 3.492 23 3 9.20 5 12.47 1852 55.87 3 19.6 8 34 42. 7 j 21 59 49.6 1 2799 • . 9 6 43.58 1 3.415 20 45 2.14 1 14.58 1851 51 27 3 39.3 9 7 36.85 20 41 22.8 ' 104 2800 . . 9 6 48.13 1 3.411 20 31 41.58 1 14.58 1851 51.16 3 39.4 9 7 39 29 20 28 2.2 105 2830 7 9 11 23.40 3 +3.391 +19 46 47.71 3 —14.86 1851 +50.90 -3 43.4 9 12 14.30 + 19 43 4.3 109 ID N°- 1783 the I is assumed to be 25° 32', instead of 25' 32'. Comparison- Stars from Piazzi. No. Catalogue. Mean place, 1800.0. Yi-ar of comparison. K'M. to yiar of comparison. Mean place for Beginning of year. No. a. d. i" f/.. m d. a. d. A. m. ». » / // m. i. , „ h. m. s. ° / // IV, 287 4 53 31.70 + 26 8 38.9 1850 +3 5.13 + 4 40.4 4 56 36.83 + 26 U 8.6 1 V, 41 5 8 26.56 97 44 25.5 1850 3 7.98 3 37.1 5 11 31.54 27 48 2.6 . a 98 5 16 58.36 24 58 23.0 1850 3 4.33 3 0.6 5 30 2 59 25 1 25.6 c 115 5 24 39.67 36 47 49 1850 3 7.02 227.3 527 46.69 26 49 30.2 d 165 5 27 20.50 95 46 14.8 1849 3 1.79 2 13.1 5 30 22.29 25 48 27.9 e 273 5 45 35.16 25 54 51.5 1849 3 2.39 055.3 5 48 37.45 25 55 46.8 12 306 5 51 50.07 35 96 13.8 1850 3 5.38 + 0 29.0 5 54 55.45 25 26 41.8 } 350 5 59 16.94 24 26 59.5 ' 1849 3 0.31 — 0 3.3 6 2 16.45 24 26 56.2 g VII, 207 7 36 34.78 93 37 93.6 1853 3 7.30 7 13.2 7 39 42.08 23 30 10.5 i 232 7 41 7.40 32 50 14.3 1853 3 6. 09 7 31.8 7 44 13.42 22 43 42.5 k 299 7 54 45.00 33 1 10.0 1852 3 5.44 826.8 7 57 50.44 22 52 43.2 I VIII, 41 8 8 37.18 34 38 26.7 1852 3 6.50 9 21.1 8 11 43.68 24 29 5.6 64 65 8 14 44.80 35 10 49.0 1852 3 6 69 9 44 4 8 17 51.49 25 1 4.6 m 76 8 16 43 67 34 47 51.4 1853 3 6.06 951.8 8 19 49.73 24 37 59.6 n 84 8 19 39.50 24 44 42.0 1852 3 5.74 10 2.8 8 22 45. 2 j 24 34 39.2 0 89 8 21 9.34 24 45 14.5 1852 3 5.65 10 8.3 8 21 14.99 21 .15 6.2 P . 121 8 28 10.59 20 46 49.5 1859 3 0.57 10 33.8 8 :il 11.09 20 38 15.7 81 142 8 31 41 30 22 10 39.0 1853 3 1.85 10 46.5 8 34 41. 15 21 .',9 52.5 1 195 8 42 27.90 20 42 49.2 1*52 2 59.46 11 24.1 8 45 27.36 20 31 25.1 r IX, 50 9 921.00 + 19 55 43.3- 1851 9 53 18 12 36.8 9 12 14.18 + 19 43 6.7 109 XVII, 43 17 8 15.47 — 17 31 58.5 1851 9 57.71 3 42.5 17 11 11.18 — 17 35 41.0 118 63 17 10 57.47 17 99 37.7 1851 2 57.71 3 30.8 17 13 5). 18 17 33 8.5 m 321 17 35 45.50 18 1 1.5 1851 2 58.73 — 1 41.4 17 38 44.23 18 2 42.9 127 XVIII, 24 18 532.10 27 5 58.0 1650 3 7 76 + 0 31.1 18 8 39.86 27 5 26.9 140 41 18 9 53.82 36 2938.0 1850 3 6.84 0 50.1 18 13 0.66 26 28 47.9 145 95 18 30 42.87 - 19 6 2.3 1851 + 3 0.12 + 1 39.0 18 23 42.99 — 19 4 23.2 148 COMPARISON -STABS. Comparison-Star* fro Taylor. No. cantor*. Mr.n ptere, 1835. Year of eouipariwa. Red. to year of corn p«n win Mean place for beginning of year. No. a. 8. la 0. In 4. a. 3. A. •». *, • i n m. j. / it ». m, I. • i a im 4. 95 41. 19 + 96 11 44.4 1890 + 0 55.57 + I 99.6 4 56 36.69 + 96 U 7.0 1 1114 4 10 96.11 97 46 55 3 1850 0 56.39 1 3.7 5 11 34.50 97 47 99.0 a 1MB ft 1» 7.M 95 0 39.6 1850 0 55.97 <> • I 5 80 9.47 95 1 95.4 c sow 5 9580.77 96 4847.6 1650 056.09 0 49.8 5 97 46.86 96 49 30.4 I 0071 ft W 30.83 95 47 46.5 1849 0 51.96 0 36.7 5 30 93.79 954893.9 t .... ft 47 45.58 95 5531.0 1849 0 59.09 0 14.4 5 4837.67 9555 45.5 19 9966 i 54 0.99 9596 31.6 1850 0 55.60 + 0 7.3 ft 94 55.89 9598 38.9 / 83% « 1 25.01 94 96 55.7 1849 0 51.50 — 0 3.3 6 9 16.51 94 96 53.4 t •436 6 14 33.87 95 7 39.6 184* 0 51.77 0 18.3 6 15 95.64 95 791.9 91 - - • 33 46.70 95 17 12.0 1849 0 51.76 041.7 634 38.46 95 16 30.3 35 3SSS 736 41.2* 93 3931.3 1859 1 1.99 393.0 7 39 49.50 9330 19.3 < 3*79 7 43 19.73 99 45 13.0 1859 1 0.79 9 99.1 7 44 13.59 9949 43.9 k 3306 7 47 37.08 16 13 98.4 1859 058.11 2 34.8 7 48 35.19 16 10 53.6 51 3402 7 56 48.99 99 5597 0 1859 1 0.60 347.0 7 57 49.59 999940.0 i 3S19 8 10 49.93 94 33 11.5 1859 1 0.93 3 4.7 8 11 43.85 94 99 6.8 64 3575 8 16 90.33 9ft 4 13.9 MM 35 55 47.94 10 .... 37.44 • 7.33 * • » • 44.76 11 5 48 42.81 38.57 — 4.38 7.31 5 48 38.53 45.88 1850. Jan. 10 42.28 4.63 . . . 37.66 5 48 38.09 25 55 46.19 10 1849. Dec. 11 • 36 23 53.36 . . . + 6.87 .... 36 23 0.23 14 5 44 40.26 55.53 — 4.34 6.80 5 44 35.93 2.33 15 39.93 55.39 4.35 6.78 35.58 2.17 1C . . . 57.18 • . 6.76 .... 3.94 18 .... 55.12 . . . 6.73 . . . . 1.85 5 44 35.75 26 23 2.10 1 Dec. 90 . . . . 96 31 47.55 + 5.29 26 31 52.84 31 5 33 16.83 48.82 — 4.44 5.36 5 33 12.39 54.08 33 47.66 . . . 5.23 • • • • 52.89 33 16.98 • .... 4.45 12.53 36 16.61 46.93 4.49 5.10 12.12 52.03 27 16.95 47.80 4.49 5.07 13.46 52.87 39 16.85 47.41 4.51 5.00 12.34 53.41 31 16.94 45.59 4.53 4.94 12.43 50.53 1850. Jan. 3 16.94 48.85 4.54 4.83 12.40 53.67 5 33 13.38 26 31 52.66 8 1849. Dec. 22 . . . . 26 31 22.95 . . . + 4.95 36 31 27.90 23 .... 32.71 4.U1 .... 27.62 84 .... 23.27 4.87 • ... 28.14 27 .... 33.44 . 4.77 28.21 39 . . . . 22.10 . . . 4.64 .... 26.74 31 .... 31.28 . 4.51 .... 25.79 1850. Jan. 3 . . . . 93.38 4.43 «... 27.80 . . . . 36 31 27.46 1 1850. Jan. 7 4 56 37.34 26 12 58.60 — 4.44 + 0.54 4 56 32.90 28 12 59.14 8 37 31 13 0.34 4.44 0.51 32.87 13 0.75 9 37.47 0.61 4.43 0.48 33.04 1.09 10 37.38 1.67 4.43 0.45 32.95 2.12 13 37.45 1.44 4.42 0.39 33.03 1.83 14 37.51 1.09 4.41 0.34 33.10 1.43 15 37.59 1.21 4.41 0.33 33.18 1.53 16 37.36 0.77 4.40 0.29 32.96 1.06 4 56 33.00 26 13 1.12 17 1849. Dec. 21 6 6 9.71 — 4.38 6 6 5.33 6 6 5.33 18 1850. Jan. 7 6 8 39.55 — 4.54 6 7 35.01 8 39.68 4.55 . . . 35.13 6 7 35.07 For N*. 18, the ri;ht-uctniion u aitumed to be recorded one minute too large. N*. 97, Wrong itar observed with mural > Se« note to lame star under Comparison-Stars from Lalande. C'XVUl tX)MPARI8ON-8TAK3. Comparison-Stars determined aJt Cape of Good Hope during the second series of Mara observations. No. Dale, o • •'•..; Red. 10 18M.O. Mean 5 1898.0. Ho. Due. Obwrvrd J. Red. to 1853.0. Mran (? I&V.2 0. • ' • / n n • / /' : - • I n • » 101 Jut. 3 +91 16 49.48 +3.SJ 491 16 53.01 64 Fek. 13 +9499 1.13 +4. 35 +M 99 5.48 •4 J.n. 19 94 » l.« +3.W 9499 5.36 14 I.4S .35 5.80 90 » 1.03 3.94 4.97 1 16 .,. .33 7.95 81 98 98.73 4.00 17 9.36 .31 6.68 U9 99 0.86 4.04 4.90 18 0.93 ' .31 5.94 93 0.80 4.07 4.87 19 3.41 .30 94 1.48 4.10 5.58 M 3.90 .39 96 0.93 4.16 5.08 93 3.94 .94 94 4.99 to 1.S4 4.19 5.73 99 0.67 4.95 4.93 +24 29 5.75 Feb. 9 1.85 4.30 8.15 58 Feb. 11 94 55 10.01 +9.94 3 1.53 4.33 5.85 19 8.83 2.89 946511.79 9 9.09 4.36 6.45 13 8.39 9.84 11.93 10 9.30 4.36 6.66 14 8.38 9.78 11.16 19 3.11 4.36 6.47 16 9.71 g 57 +94 55 11.37 Comparison-Stars from Ann Arbor observations. No. Mean place 185C.O. Year of comp. Red. to year of companion. Mean place for beginning of year. a- 8- a) in a- In d. a- d. k. m. I. • i „ t. II *. m..,. • / a 119 16 49 37 — 96 53 0.78 1850 -99.306 +36.468 16 49 IS —36 59 94.31 113 16 50 30 -X 57 13.84 1850 •-•• m 36.030 16 SO 8 36 56 38.81 119 17 13 17 97 51 90.98 1850 99.581 94 456 17 13 54 37 50 55.82 190 17 13 48 27 31 53.40 1850 24.186 17 1335 97 31 98.31 111 17 14 17 27 49 30.38 1850 23.580 •• .Ml 17 13 54 27 49 6.44 193 17 M 15 17 33 30.112 1851 17.437 19.985 17 1358 17 33 10.96 195 17 29 11 27 57 16.54 1850 23.649 16.230 179848 97 57 0.31 198 17 44 19 28 1 5.63 1850 22.685 8.333 17 4356 98 0 57.31 139 17 53 53 97 49 17.89 1850 23.663 3.306 17 53 30 27 49 14.58 134 17 M 25 37 39 39.98 1850 23.635 + 0.403 17 59 9 27 3998 88 139 18 7 94 97 97 90.40 u . 23.597 — 3.788 18 7 1 37 97 34.19 143 18 19 15 —96 8 41.39 1650 -83.367 — 5.808 18 11 53 — 96 8 47.90 Comparison-Stars from various sources. Mo. Aatbority. Epoch. Obi'd 0.. 1 d Ob»'d 8. £ o o Year of com. Ri-d. to year of comp. Mean place for bcf . of year. In a. In 8. a. 8. k. m. i. • m. «. i n k.m. «. . , „ - • , 6 33 8.25 3 +25 17 41.6 9 • - —1 10.9 6 34 36.85 +95 16 30.7 4» Strove Cat. r.en., 931 .... 1830.0 7 4.', 45. 1-6 4 +95 6 20.4 4 . :-l 19.88 -3 17.7 7 47 5.74 +95 3 2.7 51 Wrolte.lry,»frm.RAJI. XXIII, 27 1850.0 7 4898.17 5 . + 6.83 . . . 7 48 35.00 . . . . m Strove Cat. Gen. ,904 .... 1830.0 8 16 32.45 6 +95 5 IC.7 6 ; l 18.91 —4 10.0 8 1751.36 +35 1 0.7 83 ll.mburn.A. N. XI.MI.II3 . .1856.0 8 33 39.23 3 +18 45 •_• - 1X73 + 49.5 8 3395.51 + 1846 14.8 91 K N.,XIII,KI . . 1833.0 8 46 19 69 13 +93 19 30.5 I.I i 1 6.15 -413.6 8479604 +2? 15 16.9 91 INxpal, A. N. XIII, 213 . . . 1833.0 8 46 19.91 . 6 +93 19 34.1 5 , 1 6.15 -4 13.6 8 47 98.08 +9* 15 20.5 N Dorpxt, A. N. XIII, 943 . . . 8 46 96.33 ' 9 +23 13 1.1 9 + 1 6.09 —4 13.4 8 47 33.41 +•23 8 47.7 141 Almnn. A. N Vll.i-l .... • IB 7 44.40 9 -18 51 10.3 1 IN.-.I +121.14 +0 17.1 18 9 5.54 —18 CO 53.9 143 WrottMley.Metn.R.A.f". XXIII, 39 18500 18 11 5336 5 . . . . 0.0 ... 18 11 53.38 . . . . 144 Altona, A. X. VII, HI .... 1838.0- 18 II 1C. 00 3 —IB 55 43.04 9 |s:,l I 1 21.10 40 24.1 18 12 37.16 -18 55 19.0 147 WroUnler.Mem.R A 8. XXIII, 39 1850.0 18 18 23.50 5 • 0.0 ... 13 18 23.50 For th« Dorpat obMmttai of N". 91 and the Altona obaenraUon of N*. 141, the declination! an w discrepant that tbey ban not bei-n Incorporated tola UM DMl me»n». The latt.-r, u publi.hed . givi-. the apparent place ; which baa been malformed in Dili table into the mean place for the brginnin ; COMPAKISON-STAKS. CX1X The fewness of the observations from most of the individual sources renders the determina- tion of the constant differences for the results of the respective observers a matter of much difficulty. And it was soon palpable that no trustworthy equation could be obtained for any observer, which would hold even approximately both for the southern stars of the first Venus- series and the northern stars of the three other series of observations. Nor did the several equations to be found in the books appear altogether satisfactory, or accordant. The catalogue of Comparison-stars contains 148 stars, arranged and numbered in the order of their right-ascensions. Of these, Nos- 1—35, inclusive, belong to the first Mars-series, and are all situated between 24£° and 26£° of north declination. Twenty- three stars, between Nos- 47-86, inclusive, as well as N08' 87-109, making 46 in all, belong to the second Mars-series, and are between the declinations 19^° and 25° north. Nos- 36-46, as well as seventeen stars between Nos- 47-86, making thirty-nine in all, belong to the second Venus-scries, and are situated between 14^° and 25° north declination. So that of all these 109 stars, none are farther north than +26°. 5, and none farther south than +14°. 5. The first Venus-series, on the other hand, contains thirty-nine stars, Nos- 110-148, all of which are between 17^° and 28° of south declination, and comprised therefore within the limits of Argelander's southern zones. Of the special lists, the Santiago determinations comprise the whole list of stars compared with Mars during the second series of observations. The Washington determinations comprise the whole list of southern stars, with one exception, (Venus, I,) and 25 northern ones — 8 for Mars I, 17 for Mars II. The Cape determinations are for 12 stars observed with Mars I, and 3 observed with Mars II. The places from Bessel's zones are, of course, exclusively for northern, and those from Arge- lander's exclusively for southern stars. The twenty stars from Riimker's catalogue are all northern. Those from the third Greenwich catalogue, and all but one from the Twelve- Year, are northern. The stars from Lamont and Briinnow are all southern. From the positions taken from Lalande, 57 are for northern and 14 for southern stars. Of those from Piazzi, 20 are northern and 6 are southern stars. Of those from Taylor, 22 are northern and 5 are southern. Under these circumstances, it is manifestly most appropriate to refer the northern stars to Bessel as the standard observer, and the southern to Argelander ; and this has been done, for the sake of avoiding as much uncertainty as possible. In order to deduce the corrections neces- sary for reducing the declinations to the standard, all those stars which have been determined by two different authorities have been made to contribute to the result, and the mean difference for each two observers computed when possible. Thus, we have for the Santiago (northern) determinations by 31 observations, Santiago— Bessel = + 0".56 ± 0".38, and by 17 observations, Washington— Santiago = + 1".06 ± 0".23, one observation being rejected in the latter case by Peirce's Criterion. The Greenwich catalogue of positions for 1850 gives by 23 observations, Bessel— Greenwich = + 0".562 =h 0".503, and by 8 observations, Washington— Greenwich = + 0".66 ± 0".36. Furthermore, we have from 20 observations (the same one being rejected as before,) Washington — Bessel = + 0".44 ± 0".59 ; and lastly, from 9 observations at the Cape, of which two were manifestly to be excluded, but, by reason of their equality on the two sides of the mean, exerted no essential influence on the result, Maclear— Greenwich = + 0".39 ± 0".31. CXX COMPARISON-STARS. The incompatibility of some of these determinations is apparent, and the first fire equations require therefore to be combined with one another, according to the method of least squares, after giving to each an appropriate weight. The values resulting from this combination have been adopted. They are: Bessel— Washington =r — 0".76 Bessel — Santiago = — 0".06 Bessel— Greenwich = + 0".23 Hence we also have, Bessel— Maclear = — 0".l6. For southern stars we obtain, by 20 observations, Argelander — Washington = -f 1".74 ± 0".40, and by 12 observations, Washington— Ann Arbor = + 1".58 ± 0".35, whence, Argelander — Ann Arbor = + 3". 32. These corrections were uniformly applied, as also were the following equations as previously determined for the declinations under consideration, excepting for the one zone of Lalande already mentioned. They are taken from Argelander's Poaitiones Mediae and Southern Zones, Struve's Positiones Mediae, and Madler's Fixstern-system II, as cited by Dr. Fiirster in his excellent paper in N°. 1026 of the Astronomische Nachrichtcn. Bessel— Taylor = — 1".32 Bessel— Twelve-Year = — 0".40 Bessel— Rumker = — 0".70 Bessel — Piazzi = Bessel — Lalande = — 3".6foreJ= + 15° — 3".3 +20° — 2". 8 +25° Argelander— Taylor = + 0".50 — 0".0256 (3° + 19°) Argelander — Piazzi = Argelander — Lalande = — l".52for . 5 17 47.40 47.93 47.91 1850.0. + 26 26 51.7 55.4 53.3 5 46 15 + 26 26 46.55 5 17 48 + 26 28 53.81 Lalande 11220 (1.1) Piazzi V, 273 (8.8) Taylor 2220 (9.4) Twelve-Year 515 (3.5) Maclear (2.3) Greenwich 433 (3.3) [76] ia A. m. a. 5 48 37.61 37.45 37.67 37.60 38.09 37.56 1849.0. 0 / // + 25 55 41.5 44.0 44.2 45.7 45.6 46.6 Besssl 405 Greenwich 383 Washington (1.1) (2.2) (2.11) [68] 5 A. m. s. 5 91 43.09 43.27 43.14 1850.0. « i it + 28 27 49.2 45.9 46.6 5 21 43 + 26 27 46.61 Bessel 405 (1.1) P] e A. m. «. 5 22 32.26 1849.0. 0 1 II + 2634 5.9 5 48 38 + 25 55 45.38 Rnmker 1673 Greenwich 438 Washington (1.1) (6.6) (1.10) [83] 13 A. m. t. 654 3.71 3.94 3.94 1849.0. o / II + 26 16 30.8 30.6 30.1 5 22 32 + 26 34 5.9 Bessel 405 (1.1) [3] T A. in. s. 5 25 40.14 1849.0. + 2627 2.6 5 25 40 + 9627 2.6 5 54 4 + 26 16 30.31 \ \ . COMPARISON-STARS. Final List of Star-Position* — Continued. RUnktr 1680 Greenwich 439 Wa^unftoo (M) ll.l) (8-3) (l.H) 14 A.m. ,. 554 98.7* 88.08 96.46 97.73 1849.0. • i n + 9621 9.1 80 59.6 9057.9 91 0.6 B«aael583 (1.1) M A. m. .. 6 17 58.70 1849.0. • i it + 8587 83.6 6 17 St» + 9597 83.6 B*a*eJ348 (1.1) [3] M A. m. f. 6 18 45.23 18490. * 1 II + 84 80 31.0 5 54 88 + 3691 0.09 Lalande 11684 BWM140S Bttmker 1737 Maclear Greenwich 451 (11) (1.1) (3) (6.6) 15 A. m. i. 6 1 30.78 30.64 30.52 30.57 1849.0. • / n + 98 9 14.0 16.4 15.0 17.3 16.1 6 18 45 + 24 20 31.0 • Lulande 12336, 7 (9.9) Beuel 523 (1.1) Maclear (3.3) Greenwich 479 (1.1) 85 ».«... 6 19 94.16 94.69 94.53 93.83 1849.0. * i n + 95 49 33.9 33.4 33.9 30.6 6 1 31 + 98 2 16.10 Lalandt 11714 Greenwich 453 (1.1) (1.1) (6.4) [«] 16 A. m. i. 6 3 33.10 93.90 93.31 1849.0. + 36 039.3 43.9 41.7 6 19 95 + 35 4933.04 Beuel 533 Greenwich 485 (1.1) (9.9) [13] 36 A. m. i. 6 21 2.59 9.37 1849.0. * 1 II + 95 14 96.6 97.0 6 9 93 + 96 041.88 Lalande 11854 Maclear Greenwich 457 (1.1) (1) <"> 17 A. m. i. 6 6 5.03 5.33 5.38 18490. + 35 22 33.9 93.1 6 91 9 + 35 14 96.91 Lalando 12395 Maclear Greenwich 487 (1.1) (1.2) •t A. m. t. 691 9.61 10.51 10.68 1849.0. + 95 46 38.1 40.8 665 + 252323.13 Lalande 11946 BUmker 1783 Maclear Greenwich 458 (1.1) (1.1) (4.4) [94] 18 A. m. •. 6 7 35.06 35.27 35.07 35.12 18490. * i n + 25 33 18.3 15.8 93.8 691 11 + 25 46 40.55 Bessel 523 Greenwich 488 (1-1) (2.2) [13] as A. m. i. 6 81 36.16 36.24 1849.0. + 25 31 15.4 16.5 6 7 35 + 35 33 31.74 Lalande 11976,8 Greenwich 459 (3.3) (9.8) [19] n A, «. t. 6 99510 96.16 1849.0. • / n + 9535 3.9 9.6 6 31 36 + 25 31 16.25 Greenwich (1.1) m 39 A. m. ». 6 25 96.67 1849.0. * t n + 96 3351.6 6 926 + 35 35 9.70 B««»eJ 405 Greenwich 467 (I.I) (4.3) 510 A. m. f. 6 11 31.75 31.81 18490. + 95 45 49.0 45.7 63597 + 96 3351.6 Lalande 13554 Beuel405 Greenwich 490 S3 3O A. m. i. 6 95 44.14 44.74 44.87 1849.0. + 95 1 57.8 59.9 56.0 6 11 33 + 95 45 46.95 Lalande 19197, 9 B«**el4as Taylor 9458 Mack-ar Onmwico470 (99) (1.1) (6-8) (4.5) (9.9) [58] ill A, m. i. 6 1595.35 85.8-) 85.64 95.63 95.65 1849.0. + 95 7 16.7 90.8 19.9 90.0 90.9 695 44 + 95 1 57.97 Lalande 12557 Greenwich 491 n 31 A. m. I. 6 95 47.09 46.64 1849.0. • i a + 84 44 45.4 44.4 6 1596 + 95 790.05 6 95 47 + 94 44 44.57 Laland. 13237 Greenwich 473 (1.1) (M) U) 519 « A.m.*. 6 16 47.33 46.93 46.90 1849.0. + 35 3538.4 85.8 94.8 Bevel 348 Greenwich 495 m 39 A.,». .. 6 87 81.07 91.09 1849.0. • / f + 94 33 48.7 4V. 3 6 16 47 + 25 35 94.84 6 97 91 + 94 33 49.08 COMPARISON-STAES. Final List of Star-Positions — Continued. cxxv Bessel 348 (1.1) Greenwich 496 (1.1) [8] 33 A. m. s. 6 27 52.80 52.67 1849.0. « / // + 24 31 4.5 4.9 Lalande 15125 (1.1) [1] 44 A. m. s. ' 7 38 57.81 1852.0. ° / // + 15 53 0.6 7 38 58 + 15 53 0.6 6 27 53 + 2431 4.75 Lalande 15221 Bessel 339 (1.1) (1.1) [1] 45 A. m. ». 7 41 51.39 51.67 1852.0. ° / // + 24 9 13.3 12.5 Lalande 12666 (1.1) Bessel 348, 405 (2.2) PJ 34 A. m. s. 6 28 45.41 46.37 1849.0. + 24 57 28.6 23.7 7 41 52 + 24 9 12.70 6 a« 46 + 24 57 24.40 Lalande 15338 (1.1) [1] 46 A. m. t. 7 44 52.83 1852.0. * t n + 15 58 40.4 Lalande 12880 (1.1) Taylor 2632 (17.45) Btimker 1979 (16.13) Twelve-Tear 587 (22.19) Maclear (3.3) Greenwich SOS (8.7) [320) 39 A. m. t, 6 34 38.43 38.46 38.31 38.40 38.42 38.37 1849.0. • i n + 25 16 25.7 89.0 30.3 30.1 28.2 32.0 7 44.53 + 15 58 40.4 Lalande 15401 Santiago (1.1) (3.3) [16] 47 A. m. s. 7 46 36.34 36.58 1852.0. o / II + 24 44.48.1 50.9 6 34 38 + 25 16 29.76 7 46 36 + 24 44 50.72 Bexel 376 (1.1) [3] 36 A. m. i. 7 36 53.19 1853.0. * i it + 15 15 1.4 Lalande 15412 Santiago (1.1) (3.3) [16] 48 A. m. x. 7 46 52.98 57.25. 1852.0. + 24 36 41.7 49.0 7 36 52 + IS 15 1.4 7 46 57 + 24 36 48.54 Bessel 273, 276 (2.3) [«J 37 A. m. t. 739 28.W) 1853.0. » / a + 15 24 42.2 BesKl 341 (1.1) Btruve Cat. Gen. (4.4) Santiago (3.3) [58] 48 A. m. t. 7 47 5.64 5.74 5.71 1852.0. + 25 3 0.0 2.7 3.2 7 29 SB + 15 34 43.2 Beuel 146 (1.1) [3] 38 A. m. i. 7 89 28.97 1853.0. • // + 14 40 6.9 7 47 6 + 35 3 2.69 Bessel 339 (1.1) [3] oo A. m. s. 7 47 14.74 1852.0. « / // + 24 037.9 7 39 29 + 14 40 6.9 Beuel 3TJ (1.1) ra M k. m. >. 7 30 38.00 1853.0. • / // + 14 S3 36.6 7 47 15 + 24 0 37.9 Lalande 15468 (1.1) Taylor 3306 « (5.7) RUmker 2335 (3.2) Twelve- Year 709 (6.5) Wrottesley (5) [53] 51 A. m. i. 7 48 35.29 35.19 35.08 36.04 35.00 1852.0. * 1 II + 16 10 56.8 52.3 53.8 52.4 7 30 38 + 14 53 36.6 BnMl273 (1.1) P] 4O A. m. t. 7 30 58 15 1853.0. • / it + 14 47 39.1 7 30 58 + 14 47 39.1 7 48 35 + 16 10 52.60 BesMl 373, 376 (2.2) [6] k, m. i. 7 32 44.34 1852.0. * i n + 15 40 32.0 Bessel 339, 341 Santiago (2.2) (5.5) [31] M A. m. c. 7 48 38.35 38.31 1852.0. o / // + 24 54 9.2 11.7 7 32 44 + 15 40 22.0 7 48 38 + 24 54 11.22 Lalande 14961 (1.1) Beuel 62, 146 (2.2) m M A. m. t. 7 33 42.26 43.38 1852.0. • 1 II + 14 33 0.3 0.9 Lalande 15548 (1.1) [1] 53 A. m. f. 7 SO 53.27 1852.0. • / // + 23 3450.1 7 50 53 + 23 34 50.1 7 33 42 + 14 33 O.tO Bessel 339 Santiago (1-0 (3.3) [18] 54 A. m. t. 7 50 59.17 59.58 1852.0. * 1 II + 24 28 27.8 27.0 BetMl273 (1.1) [3] M A. m. f. 7 33 49. 55 1852.0. + 15 49 51.1 7 33 50 + IS 49 51.1 7 50 59 + 24 28 27. CXXV1 COMPARISON-STARS. Final List of Star-Pontions — Continued. Lafert* 158*8 (I.I) BMM43M d.i) M k. m. t. ~ 59 38.98 38.37 38.37 1859.0. • i H +94 18 57.3 59.0 68.7 • Lalande 16988,90,91 (3.3) Piazzi VIII, 41 (18.8) Bevel 344 (1.1) Taylor 3519 (6.5) Banker 9478 (3.3) Twelve- Year 745 (18.17) Santiago (39.33) Onenwieh 608 (7.7) Maclear (1.8) f413] M A. m. i. 8 11 49.78 43.68 43. SB 43.85 43.66 43.68 43.69 B.M 1858.0. • i n + 9499 0.9 9.7 1.4 5.4 9.0 3.1 9.7 3.7 4 4 7 89 38 +94 18 50.67 •Main (1.1) Rumker (1.1) ra M A. M. 1. 7 5131.44 31.96 1853.0. • * n + 15 58 1.3 1.4 8 II 44 + 94 8B 3.89 7 S3 31 + 15 58 1 .35 Bevel 973 (1.1) PJ 65 A. «. >. 8 11 51.45 1858.0. + 1* 55 48.5 Biiirl "" (1.1) Santiago (15.15) [78] 67 A. m. .. 7 55 9.91 3.89 1853.0. • / n 435 033.3 90.8 8 11 51 + 15 55 4K.5 Santiago Washington (8J1) (9) [90] 66 A. m. f. 8 13 9.79 1853.0. + 94 99 91.3 93.7 7 55 3 +95 0 30.89 Lalande 15707 (1.1) BesMl 339, 341 (9.9) Santiago (6.6) Mactoar (3) [87] 68 A. m. •. 7 55 15.43 15.60 15.48 15.59 1859.0. • / ii +94 55 6.9 9.0 10.8 10.9 10.1 8 13 10 + 34 99 99.50 Beiifl 973 (M) 67 A. m. f. 8 14 58.99 1853.0. * 1 II + IS 44 33.5 8 14 59 + 15 44 33.5 7 55 15 +94 55 10.16 Lalande 16477 Bevel 344 Santiago Washington (1.1) (1.1) (3.8) (9) 68 A. m. t. 8 16 5.83 8.46 8.37 1R-.2.II. + 34 as 7.7 1.7 5.9 5.3 Ressel 878,379 (8.8) [«] ft* A. m. f. 7 59 15.43 1868.0. * i n +99 50 45.4 759 15 +93 50 45.4 B8SMI341 (1.1) Santiago (3.3) [18] 60 A. m. f. 7 5994.49 94.13 1853.0. • / n +84 58 39.4 483 8 16 8 + 24 as 5.33 Lalande 16464 Benel344 Santiago Washington (1-1) (1-1) (S3) (1) [IS] 69 k. m. i. 8 16 35.74 35.65 35.78 1859.0. +94 1 30.3 33.7 31.9 39.1 7 5994 +94 5941.83 Lalande 16068 (1.1) 61 A. m. ,. 8 597.00 1859.0. • / n +16 4 80.7 8 16 36 +94 1 31.99 Lalandr 16583 Beaael278 (1.1) (1.1) M 70 k. m. t. 8 1939.34 99.49 1853.0. • / ii +91 38 19.6 14.7 8 597 +16 4 90.7 B*asel 341 (1.1) Santiago (6.6) 69 A. ». i. 8 8 15.64 16.01 1859.0. • i n +94 47 1.8 0.1 8 IB 98 +91 38 15.99 Santiago (4.4) [98] 71 A. m. f. 8 IB 47.03 1859.0. + 84 940.5 8 6 16 +84 47 0.30 Lala.de 18938 (1.1) B«velS76 (1.1) H 63 A, ». ,. 8 10 14.53 14.30 1859.0. • / ii +91 57 0.6 57 3.8 8 1947 + 94 940.5 Santiago (3.3) [15] 79 A. m. i. 8 IB 4B.74 1859.0. • i it + 94 19 43.1 8 10 14 +91 57 3.00 8 IB 50 + 34 19 43.1 COMPARISON-STABS. Final List of Star-Positions — Continued. cxxvn Santiago (2.2) [10] 73 A. ma t. 8 30 54.98 1852.0. • / // + 34 5 30.9 Bessel 274 M (i.i) A. fn. *. 8 33 35.87 1852.0. o / ;// + 19 0 43.0 8 20 55 + 34 5 30.9 [3] 8 32 36 + 19 043.0 Lalande 166 (1.1) [1] 7* A. m. >. 831 43.73 1852.0. o I II + 21 90 54.3 Bessel 278, 344 Santiago Washington [26] 85 (9.2) (2.2) (9) A. m. a. 8 35 6.84 6.61 1S52.0. o ; // + 23 14 31.6 31.3 32.0 8 31 44 + 21 20 54.3 Bessel 373 (1.1) RUmker A. N. VIII, 13 (1.1) [6] 75 A. m. s. 8 34 24.81 34.81 1852.0. • / // + 15 46 19.4 30.9 8 35 7 + 23 14 31.64 Bessel 374 [3] 8 (1.1) A. m. s. 8 39 24.80 1852.0. « / // + 18 35 42.7 834 35 + 15 46 30.15 8 39 25 + 18 35 42.7 Bessel 373 (1.1) P] 76 k. m. ,. 836 58.53 1859.0. o / II + 16 14 7.8 Bessel 344 Santiago [13] 87 (1.1) (2.2) A. m. s. 8 40 18.10 17.65 1852.0. « / // + 22 44 41.3 42.3 8 26 59 + 16 14 7.8 Santiago (3.3) [15] 77 A. m. *. 8 37 31.61 185S.O. • / // + 23 58 5.5 8 40 18 + 22 44 42.07 Bessel 378 Santiago [23] 88 (1.1) (4.4) A. m. «. 8 44 14.84 15.33 1853.0. ° i ii + 22 33 34.7 33.6 837 33 + 23 58 5.5 Santiago (3.3) [IS] 78 A. m. f. 8 38 3.93 1853.0. • / // + 33 34 17.9 8 44 15 + 22 33 33.74 Lalande 17513 Bessel 278, 345 Greenwich 640 Santiago [52] 89 (1.1) (2.2) (6.6) (3.3) A. m. a. 845 28.00 28.02 27.95 27.91 1852.0. • / // + 32 51 38.5 38.0 37.6 38.7 8 28 3 + 23 34 17.9 Benel344 (1.1) Santiago (3.3) Washington (1) (83] 79 A. m. i. 8 38 14.73 14.64 1852.0. • / // + 33 45 40.6 37.9 36.6 8 45 28 + 22 51 37.98 Bessel 278 Santiago Washington [38] N (l.l) (3.3) (2) A. m. c. 8 45 57.84 58.07 1853.0. • / // + 22 22 45.2 44.3 45.7 8 38 15 + 23 45 37.97 Santiago (3.3) Washington (1) [M] SO k. m. t. 8 30 11.69 1852.0. • / // + 3324 21.1 33.5 8 45 58 + 22 22 44.90 01 Bessel 278 (1.1) Santiago (4.4) Washington (1) Ktinigsberg A. N. 394 (13.13) Dorpat A. N. 303 (6.5) [95] A. m. f. 8 47 26.12 36.09 36.04 96.06 1852.0. « / // + 22 15 15.0 15.3 16.1 16.9 (20.5) 8 30 13 + 33 34 31.45 Lalande 17013 (1.1) Piaszl VIII, 131 (4.4) RUmker A N. VIII, 19 (1.1) H 81 A. m. *. 8 31 11.55 11.09 11.49 1853.0. • / // + 30 36 11.6 13.8 11.7 8 4736 + 32 15 16.45 831 11 + 20 36 12.24 Bessel 378 Santiago Dorpat A. N. 303 [38] 98 (1.1) (3.3) (2.2) A. m. >. 8 47 32.84 32.71 33.41 1859.0. 0 / // + 22 846.3 46.8 47.7 Santiago (3.3) [15] 83 A. m. >. 8 31 40.84 1852.0. » / /. + 23 16 11. « 8 47 33 + 22 8 47.07 8 31 41 + 23 16 11.8 Bessel 378 Twelve-Tear 789 Greenwich 645 Santiago [83] 93 (1.1) (5.6) (4.4) (3.2) A. m. t. 8 48 54.49 54.40 54.48 54.43 1853.0. • / // + 21 54 57.4 67.3 58.2 58.7 BMM! 974 (1.1) RUmker 3813 (1.1) Hamburg A. N. 1018 (3.3) PU 83 A. m. », 8 33 35.33 35.03 35.51 1852.0. 0 / /. + 18 46 12.9 15. a 14.8 8 32 95 + 18 46 14. M 8 48 54 + 31 54 57.81 cxxriii COMPARISON-STARS. Final Lift of Star-Positions — Continued. L*|u* 17«W (1.1) BMMlfl» (1.1) Twdn-Ytv 7JS (5.8) StttiMO (<•*) WMM^tM (1) m M A. «. t. 8 SO 96.94 as. M 85.SS 85.60 1859.0. • / // + 91 44 17.9 15.4 13.7 19.8 13.8 BMM1975 SuttafO • (1.1) (") [10] 103 A. m. t. 9 799.07 99.38 1851.0. • f ii + 19 51(49.8) 45.7 9 7 99 + 19 51 45.7 Rttmkcr9799 SutUfe (1.1) (».s> [13] 104 A.IK. f. 9 7 36.85 37.01 1851.0. • i u + 90 41 93.1 94.9 89096 + 91 44 13.45 WlriliBftOO (1.1) (3J) U) P3] 95 A. m. i. 8 59 19.89 13.18 1859.0. • / // + 93 930.6 99.7 97.1 9 7 37 + 90 41 23.79 RUmker 9800 Santiago (1.1) (3.3) [18] 1O5 A.m. i. 9 7 39.29 39.52 1851.0. • / 11 + 9028 1.5 37 59.6 8 59 13 + 33 3 99.95 BMM1978 Wuhinglon (1.1) (3J) C») [S8] M A, m. .. 8 53 47.48 47. SO 1859.0. • / // + 81 34 9.5 8.1 8.9 9 7 39 + 20 27 59. !« B«Hel 975 Santiago (1.1) (S-S) [10] 106 A.m. >. 9 8 10.57 10.96 1851.0. • / ii + 19 52(23.3) 96.3 8 53 47 + 31 34 8.54 LaUnde 17937 Bewel (275), 378 8«nU«fO Wuhington (1.1) (2.D (5.5) (9) [38] w A. m. t. 8 58 16.44 16.33 16.46 1859.0. • / it 4-31 631.5 (24.4) 93.7 93.4 9 8 11 + 19 53 96.3 Santiago Washington (4.4) (1) P5] 10T A. m. i. 9 8 11.91 1851.0. • / // + 20 15 48.4 49.6 8 58 16 + 21 6 32. «6 9 8 11 + 20 15 48.64 Be«Ml978 Santiago WubiDfton (1.1) (3-3) (2) TO 98 A. m. t. 8 59 37.35 97.31 1852.0. * i ii + 21 29 90.6 90.7 23.4 Bound 975 Santiago Washington (1.1) (3.3) (2) [95] 1O8 A. m. t. 9 10 18.69 18.37 1851.0. 0 / It + 90 3(35.1) 39.3 40.5 85927 + 21 29 21.65 9 10 18 + 90 2 39.72 BMM! 877,978 SaaUago (SJ!) (SJJ) [16] 99 A. m. f. • 3 30.38 90.98 1859.0. * i it + 90 57 20.4 99.0 Fiazzi IX, 50 Taylor 4088 RUmker 2830 Santiago Washington (5.5) (4.4) (3.3) (3.9) (1) [«] 109 A. m. *. 9 19 14.18 14.61 14.X 14.29 1851.0. + 19 43 3.4 5.9 3.6 4.9 6.8 9 3 90 + 90 57 21.40 l^larnt* 18105 BMM) (9TS),977, GfMnwicb 659 ftanttafo (1-D 878 (3.9) (3.3) (M) OT 1OO A. m. t. 9 3 19.34 19.67 19.49 19.79 1859.0. • / // +•91 1 48.8 (45.6) 48.4 44.9 9 13 14 + 19 43 4.75 Lalande 30556 Waihington (1.1) (V) [36] 110 A.m. >. 16 40 55.91 1850.0. • i n — 28 98 28.8 27.9 t 390 + 91 146.79 Lalamle 18139 (1.1) BMMI978 (1.1) Tveln-Yew 808 (5.8) Owtnwkh (81 (5.5) Santiago <") Uaekar (1.1) m 101 k.m. .. 9 4 16.61 16.49 16.47 16.43 16.55 1859.0. • i it + 91 16 57.5 53.3 SS.9 61.1 51.3 51.7 16 40 55 — 26 28 27.92 Argelander Washington (1.1) (<> PS] 111 A. m. >. 16 49 56.13 1850.0. • i n — 98 39 99.5 30.9 16 49 56 9 4 16 + 91 16 51.78 Argelandcr Waihington Ann Arbor (3.3) (3) (1) [3S] 113 A.m. i. 16 49 11.81 15 1850.0. * i n — 21 53 19.3 99.1 91.0 •wwlSTS (1.1, (3J) 0) l»J IM A. m. i. 9 4 33.04 93.45 1851.0. • i it + 90 37 (50.9) S9.7 63.7 9 483 + 90 37 53.95 16 49 19 — 96 59 90.74 COMPARISON-STARS. Final List of Star-Positions — Continued. CXX1X Argelander Washington Ann Arbor (3.3) (3) (1) [35] 113 h.m. >. 16 50 4.99 8 1850.0. • / n — 26 56 35.3 35.7 33.5 Lalande 31791, Argelander 2 (2.2) (2.2) [12] 123 h. m. s, 17 21 17.78 17.73 1851.0. « / /; — 17 41 14.0 12.1 17 21 18 — 17 41 12.42 16 50 5 — 26 56 35.21 Lalande 31931, Washington 2 (2.2) (5) [27] 124 h, m. s. 17 25 18.17 1851.0. "In — 17 43 34.9 32.5 Lalande 30874 Argelander Washington (1.1) (1.1) (4) P6] 114 A. m. s. 1C 51 59.6 59.11 1850.0. • / // — 27 1 12.1 17.2 18.1 17 25 18 — 17 43 32.68 16 51 59 — 27 1 17.70 Lamont Washington Ann Arbor (2.1) (4) (1) [28] 125 A. m. .*. 17 28 45.40 48 1850.0. • i it — 27 56 58.5 57.3 57.0 Argelander Washington (3.3) <4) [35] 115 A. tn. «. 16 54 41.98 1850.0. • / ;; — 26 59 41.4 41.4 17 28 45 — 27 50 57.38 16 54 42 26 59.41.4 Argelander Washington (1.1) (3) [20] 126 A. m. f. 17 32 1.30 1851.0. — 17 59 52.4 52.0 Argelaider Washington (1.1) (4) D»] 116 h, m. t. 16 59 44.18 1850.0. « / // — 27 11 48.4 47.0 17 32 1 — 17 59 52.10 16 59 44 — 27 11 47.28 Lalande 32426 (1.1) Piazzi XVH, 221 (8.9) Taylor 8219 (3.3) Argelander (2.2) Washington (6) [59] 127 A. m. l. 17 38 44.31 44.23 44.37 44.48 1851.0. o / II — 18 2 47.2 44.1 44.6 45.2 42.2 Argelander Washington (3.3) (4) [35] 117 A. m. f. 17 7 7.73 1850.0. • / it — 2723 9.6 8.1 17 7 8 — 27 23 8.74 Piazzi XVH, 43 (14.15) Taylor 8004 (4.3) Argelander (1.1) Twelve- Year 1467 (5.4) Washington (4) [69] 118 A. m. t. 17 11 13.18 13.34 13.39 13.03 1851.0. • / n — 17 35 42.3 41.5 40.9 44.6 42.3 17 38 44 — 18 2 43.45 Washington Ann Arbor (4) (1) [ 128 A. m. «. 17 43 52 56 1850.0. o / II — 28 0 54.6 54.0 17 43 52 — 28 0 54.48 17 11 13 17 35 42 76 Lalande 32706 Argelander Washington (1.1) (2.2) (4) [31] 129 A. m. s. 17 46 22.86 22.57 1851.0. o 1 II — 18 15 24.1 29.1 27.8 Washington Ann Arbor (5) (1) po] 110 A. m. f. 17 12 50 54 1850.0. • i n — 27 50 53.0 52.5 17 12 50 17 46 23 — 18 15 28.10 Argelander Washington Ann Arbor (2.2) (4) (1) [35] 130 A. m. «. 17 13 22.27 25 1850.0. • / // —27 31 24. S 24. 8 34.9 Lalande 32727 Washington (1.1) (4) pi] 130 A. m. s. 17 47 13.77 1850.0. « / // — 28 2 3.7 5.5 17 1322 — 27 31 24.84 17 47 14 — 28 2 5.41 Washington Ann Arbor (1) (1) |10] 131 h, m. t. 17 13 M 54 1850.0. » / // — 27 49 8.2 3.1 Washington (4) [20] 131 h. m. t. 17 52 24 1850.0. ° / // — 27 51 58.2 17 52 24 27 51 58 2 17 13 51 — 2749 2.65 Lalande 32974 Lamont Washington Ann Arbor (1.1) (1) (4) (1) [26] 132 A. m. t, 17 53 27.86 27.48 30 1850.0. • / // — 27 49 10.4 10.4 11.3 Lalande 31543 Piazzi \ V 1 1 . 63 Washington Ann Arbor (1.1) (13.8) (4) (1) [34] 133 h, m. f. 17 13 55.45 55.18 58 1851.0. 0 / // — 17 33 7.5 9.8 8.9 7.6 17 13 55 -17 33 8.88 17 S3 28 — 27 49 10.57 8° cxxx COMPARISON-STARS. Final List of Star-Potitioiw — Continued. Arrland-r « • 1 (1.1) (4) t»] 133 Ig-'O.O. A. m. i. • 17.VvM.I6 —979011.9 (.8 Ulnndc 33T.98 (1.1) Altona, JiN. H9 (9.1) Arft-UndKr (4.4) U.. ,,. .•: . (3) P«] 141 A.m. f. 18 9 5.85 5.54 5.49 1851.0. • — IBM 47.3 (S3.9) 49.6 47.4 17 5554 -27 50 9.42 Waahinfton Am Arbor (4) (1) [35] 1 il 18SO.O. 4. m. i. . , „ 17 59 6 —27 39 85. 4 9 93.8 18 9 5 — 1856 40.69 Wadunfton (3) [15] 1*9 *.•».«. 18 9 30 1850.0. • ' U — 9559 9.6 17 59 6 —97 399i.44 18 9 30 — 2559 9.6 Lament (4.1) Wroltcsltjr (5) Washington (3) Ann Arbor (1) p3] 143 A.m. >. 18 11 53.64 53.36 53 1850.0. • * ii — 26 8 43.9 49.4 43.9 Laland* 33314 Arfclander Wa.hiin1.>n (1.1) (1.1) (4) PS] 135 1850.0. A. m. i. • i it 175950.16 —9744(53.7) 50.59 45 1.7 1.5 1. 59 50 —97 45 1.54 18 11 53 - v. - Ml I-ilandc 33748 (1.1) Allon» j»AT., 149 (3.2) I/mionl (2.1) Wellington (3) f29] 144 A. m. i. 18 12 37. K 37.16 36.76 1851.0. • i a — 18 55 14.7 19.0 18.4 14.1 Lilandr 33394 Arfclandrr w.. . _ . i (1.1) (3.3) (4) [36] 136 1X50.0. A. m. t. • , ,i 18 4 7.34 —25 10 43.6 7.37 54.0 53.0 18 4 7 —35 10 53.16 18 19 37 — 18 55 16.26 Piuzi XVIII, 41 (4.4) Taylor 8458 (3.4) Washington (4) [36] 145 A. m. t. 18 13 0.66 0.98 1850.0. • / n — 26 28 46.4 49.8 48.7 Lalande 33497, 8 Lament Washington (2.2) (0 (4) [22] 13T 1850.0. A. m. t. • / n 18 4 45.71 —27 33 5.3 45.94 8.9 18 13 1 — 26 28 48.81 18 4 46 —97 39 8.57 Lalande 33853 (1.1) Argelander (1.1) Waahingun (5) [31] 146 A. m. f. 18 15 19.59 19.17 1850.0. • / rt — 26 33 49.9 51.2 54.1 ArntaBfer Washington (9.9) (3) psj 138 1850.0. A. m. «. • 1 U 1864046 954540 6.5 18 15 19 — 26 33 53.50 18 6 40 —£i4.-, 5.50 Lalande 33989 (1.1) Lament (4.9) Arfelander (1.1) Wrottnley (5) Waihington (6) [4-3] 14T A.m. i. 18 18 99.98 92.75 • . -.; 22.50 1850.0. • / it — 90 42 53.8 43 0.0 42 08.8 43 1.0 Washington Ann Arbor (3) (1) poj ISO 1850.0. A. m. t. • / n 18 7 —27 97 19.0 1 90.9 18 7 1 —97 97 19.48 18 18 23 -96 43 0.54 ruzzixvm, 94 Tmytof 8347 Wadiiogton (44.31) (5.4) (0 [63] 11" 1860.0. *.«.!. . , „ 18 839.86 -97 595.9 40.00 98.2 96.8 PluziXVm, 95 (14.10) Taylor 8533 (3.4) Argetandcr (3.3) Waihington (4) [57] 148 A. m. t. 18 93 42.99 43.16 42.99 1851.0. • / // — 19 4 24.2 94.1 94.0 93.8 18 8 40 —97 5 96.28 18 93 43 — 19 4 23.99 COMPAKISON-STAKS. CXXX1 A few of these stars exhibit indications of a proper motion, which, although hardly marked enough to warrant the adoption of any theory upon the subject, yet render it proper to intro- duce into the ultimate determination from the data at command a term dependent upon the time. This has been done for four stars, viz: N08- 12, 94, 101, and 1 )9 ; and the redetermi- nation of these upon the hypothesis of a proper motion gives the following results. The second column shows the place as given by the observer, after reduction to the mean equinox of the epoch ; and the third contains this observed place as reduced to the scale of the standard observer. The remaining two give the assumed place and the residual discordance, upon the supposition of a proper motion : 12 94. Observed. Reduced. Computed. C— O. Observed. Reduced. Computed C-0. 0 / II // // // o 1 II // // // Lalande .... +25 55 44.3 41 5 42.6 + 1.1 Lalande .... +21 44 20.8 17.9 18.1 +0.2 46.8 44.0 43.2 -0.8 15.4 15.4 15.3 —0.1 45.5 44.2 45.1 4-0 9 14 1 13.7 14 3 +0.6 Twelve-Year . . . 46.1 45.7 45.5 —0.2 Santiago .... 12 8 12.8 13.1 +0.3 Maclear .... 46.3 45.6 45.9 +0.3 Washington . . . ' 14.0 13.8 12.8 —1.0 Greenwich .... 46.6 46.6 46.1 —0.5 The mean by weights is +2.V 55 45" .38 ; but the assumption of a The mean by weights is +21" 44' 13". 45; but the assumption of a proper motion of -)-0".055 gives 4-95* 55 45". 84, which has been proper motion of — 0".080 gives +21° 44' 13". 14, which has been adopted. adopted. 101. 109. Observed. Reduced. Computed. C-0. Observed. Reduced. Computed C— 0. | • / H // it // • / // „ „ „ +21 16 60.4 67 5 56.8 —0.6 Piazzi +19 43 6 7 3.4 3.1 —0.3 [;,-.< .-! 53.3 53.3 53.7 +0.4 6.5 5.2 4.8 —0.4 Twelve- Year . . . 52.7 59.2 52.5 +0.3 KUmker .... 4.3 3.6 4.8 +1.2 Maclear .... 53.0 51.7 51.2 -0.5 Santiago .... 6.0 4.9 5.5 +0.6 Santiago .... 51.3 51.3 51.2 —0.1 Washington . . . 7.0 6.8 5.7 —1.1 Greenwich .... 51.1 51.1 51.2 +0.1 The mean by weights is -f21° 16' 51". 76; but the assumption of a The mean by weights is +19° 43' 4". 75; but the assumption of a proper motion of — 0".092 gives +21' 16' 51". 33, which lias been proper motion of +0".037 gives +19° 43' 5". 50, which has been adopted. adopted. Fourteen of our 148 stars are to be found in the Catalogue of the Britisli Association, viz : NO. NO. B.A.C. NO. No. B.A.C. NO. NO. B.A.C. 1 1562. 64 2729 140 6194 12 1896 109 3181 143 6214 21 2058 118 5839 147 6261 35 2194 125 5946 148 6301 51 2639 130 6063 To eight of these stars a proper motion is assigned in the British Association Catalogue. It seems probable, however, only for two of these eight, and has in each case the contrary sign to those deduced above. For N°- 12, it is given as certainly not existing. The discrepance is generally great, amounting in one case to 2'- in right-ascension, and 20". 7 in declination. The average of the discordances in declination is 5."58, and the square root of the mean of the squares is 8."1. CXXX11 COMPARISON-STABS. If we include in this examination those stars hereafter cited, which were observed with Mara on the meridian, although not strictly comparison-stars, we find that all but one of these eighteen are also in the Catalogue of the British Association. The catalogue places of these thirty-one stars are here annexed. Comparison-Stars from British Association Catalogue. K.. W.B.A.O. MM Year. Mean place for bejinninj of year. N'. N-.B.A.C. .,. T««r. Mean place for befianinf of year. a. O . a. ft A.m. >. * i if A.m. .. • 1 n 1 1569 7 1850 45636.56 +26 13 12.1 64 9789 6 1859 8 11 43.71 +24 39 4.1 « 1648 6i 1850 5 11 34.48 27 47 58.4 • 3818 7 1859 8 17 51.94 35 0 54.8 t 1681 9 1850 5 16 48.79 38 38 33.6 n 3833 6* 1853 8 19 49.89 94 37 55.1 e 1707 7 1850 530 2.09 35 1 30.7 o 9850 6 1859 8 99 45.07 94 34 31.8 i 1754 7 1850 5 97 47.03 98 49 34.4 T •j-<; i 7 1859 8 34 14.79 94 35 9.6 • 1778 6 IM 5 30 29.91 35 48 22.9 1 2937 H MM 8 34 42.94 31 59 59.6 19 1896 5* 1849 5 48 37.63 35 55 46.9 r 3017 7$ 1859 8 45 97.01 30 31 94.1 / 1937 7 1850 5 54 56.05 25 26 36.0 109 3181 n 1851 9 19 14.53 +19 43 1.8 t 1981 6 1949 6 2 16.64 94 26 50.8 118 5839 6J 1851 17 11 13.11 —17 35 42.5 91 9058 7 1849 6 15 35 51 25 ? 16.5 195 5946 7 1850 17 98 47.03 97 57 18.1 35 9194 3 1849 6 34 38.46 25 16 30.2 130 6063 6» 1850 17 47 14.76 98 9 13.6 A 9555 9 1853 7 36 15.34 989945.1 140 6194 It 1850 18 8 39.99 27 5 99.8 i 9578 7 1859 7 39 43.35 33 30 14.8 143 6214 7 1850 18 11 54.39 96 838.0 1 9613 6J 1859 7 44 13.53 93 49 45.5 147 6361 7 1850 18 18 33.77 96 42 50.5 51 3639 6 1859 7 48 35.19 16 10 57.4 148 6301 7 1851 18 93 43.96 —19 4 94.9 ' 9703 7 1859 7 57 49.33 +93 59 39.9 Comparing these thirty-one declinations with the values here determined, and assuming the latter to be correct, we find — The average discordance, d = 4". 06, The mean error, e = ± 6". 15 ; or, excluding those stars whose places depend upon Lacaille, e = ± 3".50. Lacaille's positions have not been employed, inasmuch as, after careful examination, they seemed unlikely to add to the precision of the results. The following General Catalogue of Comparison-Stars presents the adopted mean places for the beginning of the year of observation, together with the annual precessions and the constants for reduction to apparent places. GENERAL CATALOGUE COMPARISON STARS. CX XXIV COMPARISON-STARS. General Catalogue of Comparison-Stars. Ko. Maf. Tew. a. Ann. Free. a. b. a. d. *.„... •. 1 7.8 1830 4 58 37 43.706 9.4834 0.0303 1.7449 9.1386 8 1830 535 3.713 9.4379 0.0338 1.7456 •.' mo 9 IBM 5 1099 3.719 9.3779 0.0365 1.7456 9.0913 e.9 1850 5 17 48 3.795 9.3107 0.0406 1.7473 8.9593 9 1850 5 91 43 0.0419 1.7476 8.9178 8 1849 599 39 3.731 0.0496 1.7480 8.9106 9 1849 5 95 40 3.730 i mo 0.0431 1.7478 - --,..: 7 1849 599 33 3.733 9.1704 0.0444 l.HB 8.8903 9 1849 5 39 13 3.734 9.1311 0.0451 i.im 8.7811 10 «* 1849 5 44 35 3.734 8.8753 0.0465 ;.-. i-j 8.5230 11 9 1849 5 46 15 3.736 0.0479 1.7485 8.4746 • M 1849 5 48 38 3.731 8.7414 0.0456 1.7467 - ma 13 1849 5 54 4 3.739 8.4604 0.0472 1.7480 8.1065 14 8.9 1849 5 54 38 3.734 8.4304 0.0475 1.7489 t.rm II 8 1849 6 1 31 3.795 •7.8671 0.0465 1.7479 •7.5095 16 9 1849 8 9 S3 3.794 •8.0803 0.0464 I.MJ1 •7.7093 • 17 8 1849 685 3.706 *. •8.4680 0.0439 1.7450 •8.1008 18 « 1849 6 7 35 3.710 •8.5649 0.0444 1.7455 •8.1988 It 9 1849 6 9 36 3.711 •8.6599 0.0444 1.7456 •8.9945 9 1849 6 11 33 3.716 •K.7470 0.0449 \..im •8.3653 91 7 1849 6 15 96 3.697 •8.8711 " MM 1.7440 •8.4990 as 9 1849 6 16 47 3.710 •8.9093 0.0437 1.7455 •8 5446 S3 9 1849 6 17 59 3.710 •8.9386 0.0430 1.7454 •8.5719 M 9 1849 6 18 45 3.675 •8.9598 0.0390 1.7413 •8.5679 - 8* 1849 6 19 25 3.713 •8.9734 0.0437 1.7458 •8.G096 • 9 IM 6 31 3 3.700 ,19.0057 0.0417 1.744S •8.6355 97 9 ! - i'.l 6 31 11 3.715 H9.0104 0.0437 1.7460 •8.6487 • 9 1849 6 31 36 3.707 •9.0183 I.OM 1.7459 •8.6595 • 1849 6 25 37 3.707 •9.0893 I.OM 1.7451 •8.7349 30 8.9 1849 6 25 44 3.692 •9.0928 0.0401 1.7434 •8.71S7 31 9 1849 6 35 47 3.684 •9.0931 0.0391 1.7434 •8.7138 • 9 1849 6 37 31 3.678 t>9.1171 g.OM i 1.7417 •8.7356 33 9 1849 6 97 53 3.677 n9.1251 0.0378 1.7416 •8.7431 34 9 1849 6 98 46 3.689 •9.1401 0.0391 1.7430 •8.7654 • 3* 1849 6 34 38 3.696 Fi9.22l4 0.0367 1.7438 •8.8517 36 9 1852 7 96 53 3.410 •9.5838 9.9836 l.>-.i •9.0038 37 8.9 1853 7 9998 3.413 •9.5963 9.9819 1.7093 •9.0908 38 1852 7 3929 3.385 •9.5948 9.9604 1.7070 •8.9984 39 9.10 1859 7 30 38 3.400 •9.6006 9.9800 1.7076 •9.0105 40 8 1852 7 30 58 3.397 •9.6019 9.9795 1.7073 •9.0090 41 8 1859 7 3344 3.417 •9.6116 .9799 1.7097 •9.0439 43 18S9 7 33 49 3.391 •9.6138 .9768 1.7084 •9.0139 43 9 1859 7 33 49 3.419 •9.6167 iv:' 1.7100 •9.0534 44 1859 7 38 58 3.464 •9.6439 .9797 1.7158 •9.1305 45 8 18S9 7 41 59 3.613 •9.6733 .9954 1.7340 •9.3859 46 1898 7 44 53 3.415 •9.66*4 .9700 1.7095 •9.1030 47 1859 7 46 36 t.mt •9.6936 .9931 1.7351 •9.3154 48 1853 7 46 57 3.619 •9.6944 MM 1.7347 •9.3140 « 8 1853 7 47 6 3.630 •9.6966 .9936 1.7360 •9.3333 50 7.8 1B5S 7 47 15 3.603 •9.6936 >:- •<-"., 1.7335 •9.3639 « 8 597 3.401 •9.7337 9.9487 1.7076 •9.1759 • 9 1861 8 6 16 +3.508 •9.7609 I.MM 1.7331 •9.3833 COMPAR1 SON-ST AK S. General Catalogue of Comparison-Stars. No. d. Aim. Prec. a'. V. £ d'. Weight. 1 +26 13 6.03 +5.48 n8.5527 9.0815 0.7385 n9.9832 70 3 26 16 19.35 4.93 nS.6014 9.0366 0.6928 n9.9865 88 3 26 5 48.83 4.30 B8.61H 8.9745 0.6334 n9.9898 68 4 26 26 53.81 3.67 n8.6921 8.9113 0.5649 B9.9936 73 5 26 27 46.61 3.34 nS.7067 8.8698 0.5231 T.9.9939 68 6 26 34 5.9 3.36 n8.7-2.jO 8.8621 0.5138 n9.B9.l2 3 7 26 27 2.6 2.99 nS.7153 8.8227 0.4763 B9.9951 3 8 26 31 27.44 3.66 ti8.7353 8.7720 0.4244 B9.9962 118 9 26 31 51.78 2.43 n8.7414 8.7328 0.3850 n9.9968 76 10 2623 1.41 1.35 nS.7371 8.4752 0.1397 B9.9990 31 11 26 26 46.55 1.20 n8.7483 8.4266 0.0801 n9.9992 78 12 25 55 45.84 0.99 n8.6672 8.3360 9.9975 n9.9995 76 13 26 16 30.31 0.51 n8.7190 8.052 3 9.7158 n9.9998 83 14 26 21 0.09 +0.48 n8.7392 8.0300 9.6850 n9.9999 76 15 26 2 16.10 —0.13 n8.6905 B7.4630 n9. 1239 nO.OOOO 64 16 26 0 41.88 0.21 n8.6860 n7.6559 B9.3162 BO. 0000 24 17 25 22 23.13 0.53 n8 5594 n8.0559 B9.7282 B9.9998 26 18 25 32 21.74 0.66 n 8. 59-18 B8.1542 n9.8218 B9.9998 24 19 25 35 2.20 0.82 nS.6027 B8.2497 ti9.9166 B9.9996 12 20 25 45 46.25 .03 n8.6361 n8.3397 nO.0038 B9.9994 18 21 35 7 20.05 .35 .18.4809 «8.4559 nO.1303 n9.9990 58 22 25 35 24.84 .47 n8.5953 n8.4997 nO.1666 B9.9988 14 23 2527 33.6 .57 I,-. :J-.!t n8.5375 nO.1965 n9.9987 3 24 24 20 31.0 .64 n8.1885 fi8.5274 nO.2146 B9.9986 3 25 25 42 .13.04 .70 nS.6153 n8.5644 nO.2294 .,9.9984 25 26 25 14 38.91 .84 n8.5063 118.5919 nO.3644 ,.9.9982 13 27 25 46 40.55 .85 B8.B256 r>8.6032 nO.2671 n9.9981 11 28 36 31 16.35 .89 n8.5719 n8.60;9 nO.3759 B9.9981 13 29 26 33 51.6 3.22 •8.5714 n8.6795 nO.3469 B9.9973 9 30 25 1 57.37 3.25 n 8. 4300 1)8.6759 nO.3516 n9.9973 9 31 24 44 44.57 2.25 n8.3384 n8.6720 BO. 3525 B9.9972 6 33 24 32 49.08 2.39 n8.2493 n8.6945 nO.3782 B9.9969 8 33 24 31 4.75 2.43 n8.2327 n8.7021 NO. 3863 n 9. 9968 8 34 24 57 24.40 2.51 •8.4010 n8.7228 nO.3998 ..9.9966 7 35 35 16 29.76 3.03 nS.4725 nS.8080 BO. 4799 n9.9950 320 36 15 15 1.4 7.42 9.2413 .18.9882 BO. 8705 ,19.9680 3 37 15 24 42.2 7.63 9.2370 n9.0049 BO. 8826 H9.9660 6 • 14 40 6.9 7.63 9.2687 B8.9840 BO. 8827 .19.9660 3 39 14 53 36.6 7.73 9.2605 •8.9957 BO. 8880 n9.9651 3 • 14 47 39.1 7.75 9.9650 H8.9944 BO. 8895 B9.9648 3 41 15 40 22.0 7.90 9.2292 n9 0267 nO.8974 n9.9634 6 42 14 33 0.80 7.98 9.2777 n8.9998 BO. 9019 H9.9626 7 43 15 49 51.1 7.98 9.2236 .19.0356 BO. 9022 B9.9626 3 44 15 53 0.6 8.39 9.1274 n9.1090 BO. 9240 H9.9582 1 45 24 9 12.70 8.63 8.4238 n9.2454 B0.9357 B9.9556 4 48 15 58 40.4 8.86 9.2311 ii9.0850 BO. 9475 B9.9528 1 47 34 44 50.73 9.00 8.3001 B9.2736 nO.9540 n9.9512 16 48 24 36 48.54 9.03 8.3528 n9.2726 nO.9552 .19.9509 16 49 25 3 3.69 9.04 8.1795 n9.2804 BO. 9559 B9.9508 58 50 24 0 37.9 9.05 8.5219 n9.2637 BO. 9565 B9.9506 3 51 16 10 52.60 9.15 9.2273 n9.1043 nO.9615 .19.9493 53 59 34 54 11.32 9.16 8.2780 B9.2838 BO. 9616 n9.9493 31 53 23 34 50.1 9.33 8.6395 719.2897 BO. 9699 B9.9470 1 54 34 38 27.13 9.34 8.4518 n9.2853 nO.9702 n9.9470 18 55 94 18 58.67 9.47 8.5108 ti9.2886 BO. 9762 n9. 9453 19 56 1558 1.35 9.53 9.2435 B9.1165 BO. 9793 B9.9444 6 57 25 0 20.89 9.65 8.3383 n9.3084 nO.9845 B9.9428 78 58 94 55 10.16 9.67 8.3871 B9.3077 nO.985.-l n9.9426 67 59 33 50 45.4 9.97 8.7996 n9.2856 BO, 9987 n9.9384 6 60 34 52 41.83 9.98 8.4594 B9.3210 BO. 9992 119.9382 18 81 16 4 20.7 10.44 9.2567 n9.1586 Bl.0186 B9.9314 1 82 +34 47 0.20 —10.50 8.5661 n9.3413 Bl.0212 .1(1.930.1 33 CXXX\ 1 COMPARISON-STARS. General Catalogue of Comparison-Stars — Continued. Ha. MM Ynt. a. Ann. Prrc. a. I. c. rf. A. ... t. ». 8 : - 1 8 10 14 +3.534 •9.7636 " •'•-, 1.7934 •9.3369 64 6.7 1838 8 11 44 3.583 f.9.7769 •j :•;:- 1.7303 •9.3937 to 9 :-..•_• 8 11 51 3.399 •9.7597 9.9408 1.7065 •9.1913 M 1859 8 13 10 3.581 fi9.7804 9.9631 1.7301 •9.3980 67 8 1809 8 14 59 3.375 •9.7609 MM 1.7043 •9.1800 68 8 ;-.,: 8 16 8 3.575 •9.7886 9.!t591 1. :-."• 1 •9.4050 8.1 1853 8 16 36 3.565 •9.7886 9.9579 1 .-, •„'-_' •9.3983 70 7 IM 8 1999 3.507 •9.7888 1.94 • 1.7910 •9.3556 71 1859 8 19 47 3.564 n9.7978 9.9535 1.7980 •9.4099 78 1859 8 19 50 3.567 •9.7986 LI .LI.. in 1.7984 •9.4134 73 UM 890 55 3.560 •9.8006 9.9517 1.7976 •9.4115 74 1859 8 31 44 3.498 •19.7941 9.9419 1.7199 •9.3539 75 7.8 1859 8 34 95 3.377 •9.7870 9.9341 1.7046 •9.9919 78 8.9 1859 8 96 59 3. 361 •9.7943 9.9319 1.7059 •9.9378 77 1659 8 97 39 3.547 •9.8175 LI. '.!>-••! 1.7960 •9.4969 78 1859 898 3 3.538 •9.8174 9.9401 l.VJI- ••.4194 79 1 1859 888 15 3.541 •9.8186 9.9404 1.7953 •9.4238 80 1853 8 30 19 3.530^ •9.8324 9.9364 1.7939 •9.4314 81 8 1859 8 31 11 3.469 •9.8161 9.9964 1.7163 •9.3695 -; 1859 8 31 41 3.595 •9.8355 I.BM 1.7933 •9.4229 83 9 1802 8 32 K 3.439 •9.8141 9.9196 1.7113 •9.3316 84 9 1859 8 39 36 3.434 •9.8159 9.9300 1.7119 •9.3380 85 8.9 1859 8 35 7 3.519 •9.8336 t.MI 1.7396 •9.4997 • 9 1859 8 39 95 3.417 •9.8300 9.9085 1.7098 •9.3336 -; 1 1859 8 40 18 3.493 •9.8439 MM 1.7199 •9.4319 88 9 1859 8 44 15 3. -191 •9.8590 9.9119 1.7190 •9.4360 89 8.9 1859 8 45 98 3.495 •9.8536 9.9109 1.7195 •9.4450 90 8 1859 8 45 58 3.484 •9.8559 9.9085 1.7189 •9.4358 91 8 1859 8 47 96 3.479 •9.8579 9.9057 1.7176 •9.4369 9! 9 1859 8 47 33 3.477 •9.8579 9.9051 1.7173 •9.4349 93 8 1859 8 48 54 3.470 •9.8600 9 9090 1.7164 •9.4316 94 7.8 1859 8 50 96 3.464 •9.8696 Li. -Ll-'.l 1.7157 •9.4319 • 8 1859 8 53 13 3.467 •9.8679 9.8967 1.7161 •9.4415 • 9 1859 853 47 3.456 •9.8689 9.8935 1.7146 •9.4343 97 7.8 1859 8 58 16 3.439 •9.8763 MM 1.7196 •9.4338 98 1 1853 8 59 37 3.445 .19.8797 9.8818 1.7133 •9.4436 99 8.9 1859 9 330 3.429 •9.8854 9.8798 1.7119 •9.4389 100 8.9 1859 9 3 30 3.430 •9.8856 9.8730 1.7114 •9.4405 101 8.9 1859 9 4 16 3.433 •9.8681 9.8719 1.7118 •9.4480 109 I 1851 9 4 93 3.431 •9.8864 MM 1.7109 •9.4339 103 9 1851 9 7 99 3.409 •9.8896 9.8617 1.7078 •9.4208 104 1851 7 31 3.417 •9.8994 9.8635 1.7097 •9.4406 10S 1851 7 39 3.413 •9.8918 MM 1.7093 •9.4355 106 9 1851 8 11 3.401 •9.8911 9.8601 1.7077 •9.4235 107 1851 8 11 3.408 •9.8939 9.8619 1.7086 •9.4317 108 9 1651 10 18 3.401 •9.8953 9.8569 1.7077 •9.4303 109 7 18M 13 14 3. 399 •9.8977 9.8513 1.7086 •9.4958 no ia',o 16 40 55 3.699 •9.5774 •0.0917 1.7441 9.2365 111 I860 16 49 56 3.706 •9.5673 •0.0238 1.7449 9.9199 119 1850 16 49 19 3.717 •9.5396 •0.0288 1.7463 9.1877 113 1850 1650 5 3.790 •9.5975 •0.0994 1.7466 9.1837 114 1850 16 51 59 3.794 •9.5161 •0.0308 1.7471 9.1735 115 1850 16 M 49 3.795 •9.4989 •0.0339 1.7473 9.1559 116 1850 16 59 44 3.735 •9.4658 •0.0357 1.7484 9.1957 117 1850 17 7 8 3.746 •9.4108 •0.0400 1.7497 9.0735 118 «l 1851 17 11 13 3.486 •9.3456 •0.0109 1.7184 8.8359 119 1850 17 19 50 3.763 •9.3638 •0.0449 1.7517 9.0333 190 1850 17 1399 3.756 •9.3577 •0.0431 1.7508 9.0994 131 1850 17 13 51 3.764 •9.3544 •0.0445 1.7517 9.0937 las 1851 17 13 55 :i. i-<-, •9.3911 •0.0118 1.7184 MM 133 1851 IT 91 is 3.499 •9.9165 •0.0148 1.7199 8.7991 1M 1851 1795 18 3.494 •9.1996 •0.0161 1.7194 MM 134 7 1890 179645 +3.775 •9.1869 nO.0496 1.7530 8.8578 COMPARISON-STARS. General Catalogue of Comparison-Stars — Continued. cxxxvn No. 8. Ann. Free. a'. V. d. d'. Weight. 63 * i u +21 57 3.00 // —10.79 8.9417 09.3036 nl.0332 (19.9358 4 64 24 13 3.29 10.90 8.6729 (19.3528 nl.0376 n9.9239 413 65 15 55 48.5 10.91 9.2719 d9.1742 nl.0380 (19.9238 3 66 24 29 33.50 11.01 8.C849 (19.3570 nl 0417 09.9223 20 67 15 44 33.5 11.14 9.3012 (i9.164.-) nl.0469 (19.9199 3 68 34 25 5.33 11.32 8.7207 (19.3643 nl.0502 n9.9184 29 69 24 1 31.99 11.96 8.7740 (19.3590 nl.0515 n9.9178 19 70 21 38 15.92 11.47 9.0037 (19.3239 nl.0594 (19.9140 4 71 24 9 40.5 14.49 8.7813 n9.3700 nl.0603 (19.9136 20 72 34 19 43.1 11.49 8.7617 (19.3730 nl.0604 (19.9136 15 73 24 5 30.9 11.57 8.7973 (19.3719 nl.0633 (19.9122 10 74 31 20 54.3 11.63 9.0316 (19.3244 nl.0655 (19.9110 1 75 15 46 30.15 11.83 9.2966 (19.3046 nl.0726 (19.9074 6 76 16 14 7.8 12.00 9.3888 (19.2204 nl.0792 (19.9038 3 77 33 58 5.5 12.04 8.8549 n9.3871 nl.0805 (19.9030 15 78 23 34 17.2 12.07 8.8944 (19.3815 nl.0818 (19.9033 15 79 23 45 37.97 13.09 8.8789 (19.3853 nl.0823 (19.9020 23 80 33 24 21.45 13.33 8.9210 (19.3843 nl.0874/ (19.8991 20 81 20 36 12.34 12.39 9.1076 (19.3338 nl.0896 (19.8977 8 82 23 16 11.8 11.33 8.9397 (19.3853 nl.0909 n9.8970 15 83 18 46 14.60 11.38 9.1977 (19.3979 (11.09-26 (19.8959 21 84 19 0 43.0 13.39 9.1878 (19.3037 nl.0930 (19.8956 3 85 23 14 11.64 12.56 8.9596 n9.3930 nl.0990 (19.8919 26 86 18 35 42.7 12.85 9.2314 (19.3104 nl.1090 (19.8852 3 87 33 44 42.07 12.91 9.0185 (19.3960 nl.1110 (19.8838 13 88 23 33 33.74 13.17 9.0472 til'l. 401! 01.1197 (19.8774 23 89 93 51 37.98 13.36 9.0347 (19.4095 nl.1224 n9.8754 52 90 93 33 44.90 13.39 9.0648 (•9.4018 nl.1334 n9.8745 28 91 92 15 16.45 13.38 9.0776 (19.4026 •1.1366 (19.8720 95 93 22 8 47.07 13.39 9.0838 n9.4009 nl.1268 (19.8718 28 93 31 54 57.81 13.48 9.1012 n9.c994 nl.1297 (19.8695 63 94 21 44 13.14 13.61 9.1157 (19.3992 nl.1358 (19.8669 69 95 22 2 39.25 13.69 9.1073 (19.4086 nl.1365 (i9.8637 23 96 21 34 8 54 13.79 9.1357 (19.4028 nl.1396 (19.8610 28 97 21 6 22.66 14.08 9.1711 (i9.<026 nl.1484 (19.8527 36 96 21 39 21.65 14.15 9.1588 (19.4123 nl.1507 (19.8505 28 99 30 57 31.40 14.39 9.1934 (19.4093 n 1.1 580 (19.8431 16 100 21 1 46.79 14.39 9.1904 H9.4106 nl.1580 (19.8431 32 101 91 16 51 .22 14.44 9.1834 (19.4173 nl.1597 (19.8412 79 103 20 37 52.95 14.45 9.2092 (19.4045 nl.1599 n9.8410 20 103 19 51 45.7 14.63 9.2449 n9.3942 nl.1652 n9.8351 10 104 30 41 23.72 14.64 Mm (19.4116 nl.1657 (19.8346 13 105 20 27 59.92 14.66 9.2243 (19.4073 nl.1658 (19.8345 18 100 19 S3 36.9 14.68 9.2467 (19.3958 nl.1667 09.8334 10 107 30 15 48.64 14.68 9.2332 n9.4040 (11.1067 09.8334 25 108 90 9 39.79 14.81 9.2466 (19.4032 nl.1704 09.8290 25 109 +19 43 5 50 14.93 9.2624 09.3996 nl.1737 09.8250 41 110 —28 28 37.92 6.78 B8.4925 9.1784 nO.8315 9.9736 36 111 26 39 30.62 6.63 n8.5530 9.1704 nO.8207 9.9750 25 112 26 52 20.74 6.10 B8.6388 9.1381 nO.7853 9.97B9 35 113 26 56 35.21 6.03 08.6564 9.1338 nO.7799 9.9795 35 114 37 1 17.70 5.86 n8.6803 9.1233 nO.7682 9.9806 26 115 26 59 41.4 5.64 ti8.6883 9.1058 nO.7511 9.9821 35 116 37 11 47.88 5.21 08.7432 9.0748 nO.7171 9.9848 25 117 27 23 8.74 4.58 nS.7956 9.0219 nO.6614 9 9883 35 118 17 35 42.76 4.24 9.0728 8.8051 nO.6270 9.9901 69 119 37 50 52.92 4.10 (18.8668 8.9798 nO.6126 9.9907 30 ISO 37 31 34.64 4.05 nS.8310 8.9703 nO.6078 9.9910 35 131 37 49 9.65 4.01 (18.8676 8.9*03 nO.6033 9.9911 10 199 17 33 8.88 4.01 9.0728 8.7798 nO.6027 9.9912 34 123 17 41 12.42 3.37 9.0567 8.7081 nO.5277 9.9938 12 124 17 43 33.68 3.02 9.0506 8.6620 dO.4807 9.9950 27 125 —27 56 57.38 -2.79 08.9086 8.8040 nO.4353 9.9960 28 cxxxvin COMPARISON-STARS. General Catalogue of Ctimpariaon-Stars — Continued. No. MK- Year. «. Ann. Prec. a. b. C. d. A.m. i. •. 10 1851 1739 1 +3.503 •9.1074 •0.0185 ,im 8.5074 127 't 1851 173844 3.505 •8.9888 •0 0900 KM 8.4798 198 1890 174398 3.781 •8.9013 •0.0530 .7537 8.5731 199 1851 174693 3.519 •8.7981 •0.0917 .7917 --.-N 130 ', 1850 17 47 14 3.783 •8.7990 ••0.0535 ,7St 8.4790 131 1850 17 93 94 3.778 •8.5741 •0.0533 .7534 MM 139 1850 17 9398 3.777 •8.5089 •0.0539 .7539 8.1773 133 1890 17 59 94 3.778 •8.3060 •0.0533 .7533 7 :<•...' 134 1890 17 99 6 3.773 •7.8999 •0.0697 .7597 7.awi 13} 1890 17 59 SO 3.77S rt.9059 •0.0531 .7331 ,-.. m 135 1890 18 4 7 .•i.:-.. -."<.; nO.0433 .7443 •7.9966 137 1890 18 4 46 3.683 8.3709 •0.0591 .7593 •8.0391 138 1890 18 6 40 3.717- 8.5109 •0.0459 .7469 •8.1481 139 1890 18 7 1 3.786 8.5847 •0.0596 .nto •8.9475 140 3 1890 18 8 40 3.755 S.OM •0.0509 .7507 •8.9864 141 1891 18 9 5 3.538 9.6951 nO.0236 .7938 •s.ia-.i 149 1890 18 9 39 3.723 8.6637 •0.04&9 .7470 •8.3053 143 144 7 1890 1891 18 11 53 18 1937 3.73^ 1. .-.-• 8.7690 8.7647 •0.0463 nO.0235 .7475 .7937 •8.4060 •8.9746 IV. 8» 1890 18 13 1 3.737 B.8M nO.0474 .7486 •8.4914 146 1890 18 15 19 3.739 8.8731 •0.0475 .7488 •8.5936 147 7 1890 18 18 93 3.743 8.9538 •0.0476 .7493 •8.6056 148 7 1891 1893 43 +3.539 9.0M •0.0999 .7341 •8.5599 COMPARISON-STARS. General Catalogue of Comparison-Stars — Continued. cxxxix No. s. Ann. Prec. a!. V. d. d'. Weight. 0 1 II 11 196 — 17 59 5S.10 —2.44 9.0254 8.5756 nO.3879 9.9968 20 127 18 2 43.45 1.86 9.0177 8.4579 nO.2691 9.9981 59 128 98 0 54.48 1.41 nS.9314 8.5190 nO.1494 9.9989 25 139 18 15 38.10 1.19 8.9972 8.2696 nO 0759 9.9992 31 130 28 2 5.41 1.13 n8.9357 8.4178 nO.0479 9.9993 21 131 37 51 58.3 0.66 n8.92l8 8.1902 n9.8228 9.9998 30 132 27 49 10.57 0.57 n8.9176 8.1239 n9.7571 9.9998 28 133 27 50 9.43 0.36 n8.9198 7.9218 n9.5548 9.9999 25 134 97 39 25.44 0.09 tig. 9021 7.3065 n8.9421 0.0000 25 135 27 45 1.54 — 0.61 R8.9116 6.5208 n8.]551 0.0000 25 136 25 10 53.16 +0.37 •8.5147 n7.8833 9.5566 9.S999 36 137 27 33 8.57 0.59 118.8888 f>7.9829 9.6202 9.9999 22 138 25 45 5.90 0.59 n8.6378 n8.1027 9.7671 9.9998 25 139 27 37 19.48 0.68 n8.8793 n8.1956 9.8341 9.9998 20 140 27 526.38 0.76 n8.8373 n8.2360 9.8798 9.9997 63 141 18 50 48.62 0.80 8.9439 n8.111;> 9.9043 9.9997 36 143 25 59 9.6 0.83 n8.6783 n8.2590 9.9197 9.9996 15 143 26 8 42.83 1.04 n8.7033 n8.3593 o.onl 9.9994 23 144 18 55 16.36 1.10 8.9381 H8.3514 0.0428 9.9993 29 14S 26 38 48.81 1.14 n8.7540 n8.4033 0.0563 9.9993 36 146 26 33 53.50 1.34 n8.7641 n8.4753 0.1269 9.9990 31 147 26 43 0.54 1.61 f>8.7819 H8.5566 0.3060 9.9986 ' 42 148 —19 4 23.99 +2.07 8.9299 r.8.5284 0.3164 9.9977 57 cxl COMP ABISON -8TA R8. Lastly, there is another class of stars to be examined ; namely, those observed in connection with Mars upon the meridian at different places, and although not near enough to the planet to be treated as comparison stars, yet forming in fact the basis upon which the respective series of meridian observations must rest. The places of these stars have been reduced from the several authorities, together with those which were required for our General Catalogue, and the stars are referred to in the preceding special tables by index-letters instead of numbers. The data employed for the determination of their adopted places are given below, and followed by the resultant list ; the method of reduction and form of presentation being the same with that for the 148 stars of the catalogue proper. To this class belong also ,3 Tauri and ,9 Geminorum, which being fundamental stars have been so thoroughly and frequently observed at Greenwich during the period of the Mars observations, that the places taken direct from the Greenwich Catalogue for 1850 seem more trustworthy than those derived from any combination of observations made at different epochs. Places of Stars not used for comparison, but observed with the Cape Mural Circle, in connection rvilh Mars I. Name. Date. , Obwrved. Epoch. Reduced to epoch in 0. Mean 0 at epoch. a. 8. • ». IK. I. • i a n • / it B A.C. 1848 1849.— Dec. 30 5 11 35.48 1850.0 31 +97 47 51.68 +6.65 +37 47 58.33 1850.-Jan. 3 35.95 54.83 * 6.50 48 1.33 4 53.99 +6.45 48 0.37 27 48 0.01 118 Tauri 1849.— Dec. 34 5 90 3.51 95 1 16.18 1850.0 4.7 40 +25 1 23.58 96 15.88 T • w 7.35 33.91 99 17.96 7.87 25.23 1850.— Jan. 10 3.59 19.48 6.95 96.41 11 18.47 6.93 35.40 19 3.88 18.44 6.91 95.35 14 18.18 6.86 95.04 15 18.19 6.83 94.95 16 18 00 6.80 94.80 17 19.07 +6.77 9584 35 1 94.98 B.A.C. 1754 1850.— Jan. 7 5 97 47.73 96 49 22.90 1850.0 _r. '. . 86 49 99.85 8 47.85 93.07 r"'"" I..''-' 39.99 ' 9 47.78 94.36 +688 31.94 96 4930.36 I9S Taorl 1849.— Dec. 18 5 30 97.96 25 48 90.39 1849.0 •W 17 85 48 85.56 90 97.35 19.92 T"1 5.12 84.34 91 80.28 +5.09 35.37 , 95 48 95.09 i 1&49. Nor. 95 +94 96 41.98 1849.0 j - i.n 94 38 50.58 98 6 9 20.69 T-W.W 97 90.40 43.92 +8.60 59.59 1850.-Jan. 7 90.91 94 96 51.55 These determinations are given by Mr. Maclear in the Memoirs of the Royal Astronomical Society of London, volume XX, pp. 104, 5. They have been used with the regular micrometric comparison-stars, determined during the same period at the Cape, for obtaining the constant quantity which is to be subtracted from all the circle-measurements, both of planets and stars, at the Cape, in order to reduce the declinations to our adopted standard. COMPAKISON-STAES. cxli Declinations of Stars observed with the Cape Mural Circle, in connection with Mars II. Name. Date. Observed d. Red to 1852.0. » Mean 0 1852.0. Name. Date. Observed 0. Red. to 1852.0. Mcnn O 1852.0. 0. Geminor. 1851.— Dec .22 +28 22 41.05 +4.08 • i n +28 22 45.13 Lai. 17528 1852.— Jan 16 +22 46 33.34 +4.21 +22 46 37.55 26 41.89 4.07 45.96 29 42.44 4.05 46.49 30 »' Cancri Jan. 12 +24 34 32.32 +4.12 +24 34 36.44 30 42.06 4.04 46.10 13 30.55 4.13 34.68 1852.— Jan. 1 42.47 4.09 46.49 14 32.70 4.13 36.83 2 41.52 4.00 45.52 15 32.35 4.14 36.49 3 42.70 3.98 46.68 16 31.93 4.14 36.07 5 42.31 3.94 46.25 19 33.14 4.12 37. 2o 9 44.09 3.84 47.86 20 33.07 4.10 37.17 10 43.05 3.80 46.85 21 31.23 4.09 35.33 12 43.84 3.73 47.57 22 33.45 4.07 37.52 13 42.08 3.70 45.78 23 32.90 4.06 36.96 14 43.70 3.66 Feb. 5 32.91 3.65 36.56 15 44.11 3.63 47.74 7 32.83 +3.57 36.40 19 43.43 3.46 47 89 +24 34 36 48 20 43.70 3.41 47.11 28 !>• Cancri Feb. 3 +24 37 53.16 +3.69 +24 37 56.85 21 42. a1) 3.36 46.21 4 53.31 3.66 56.97 22 49.45 3.30 45.75 5 53.36 3.62 56.98 93 43.80 3.25 47.05 6 53.64 3.58 57.22 24 43.46 3.20 7 53.54 +3.53 57.07 27 44 35 3 03 47 38 99 43.05 9.91 45.96 +24 37 57.02 F.-b. 9 44.34 9.66 47.00 24 «• Cancri Jan. 24 +25 0 57.62 +3.97 +25 1 1.59 3 44.16 9.60 46.76 26 57.44 3.91 1.35 4 43.24 9.54 45.78 Feb.18 56.49 9.84 5 44.14 2.47 46.61 20 1 0.32 +2.71 6 43.45 9.40 45.85 +25 1 1.47 7 43.65 9.34 45.99 10 45.93 9.12 47.35 B.A.O. 2703 Jan. 27 +22 52 37.12 +3.79 +22 52 40.91 11 45.19 2.05 47.24 29 36.70 3.74 40.44 12 44.91 1.98 46.89 Feb. 2 37.87 3.62 41.49 13 43.63 1.91 45.54 9 37.48 3.50 40.98 14 43.67 1.84 45.51 25 38.59 2.61 41.20 16 45.12 1.70 46.82 28 38.59 + 2.46 41.05 17 44.61 1.63 46.24 +22 52 41.01 18 44.21 1.56 45.77 y Cancri Jan. 2 +21 59 46.77 +3.64 +21 59 50.41 19 45.39 1.49 46.88 3 47.23 3.68 50.91 95 45.63 1.04 46.67 5 47.51 3.76 51.27 Feb. 28 45.99 +0.81 46.80 9 47.66 3.92 51.58 +28 22 46.53 10 46.08 3.95 50.03 B.A.C. 3017 Jan. 5 +20 31 21.59 +3.57 +20 31 25.16 12 13 47.08 45.72 3.98 3.99 51.06 49.71 39 T* 0 ncri Jan. 19 +24 35 1.64 +4.14 +24 35 5.78 14 48.04 4.00 52.04 13 34 5967 4.14 3.81 15 47.58 +4.01 51.59 14 35 1 39 4.15 5.54 +21 59 50.96 15 1.04 .15 5.19 16 0.66 .14 4.80 82 Oeminor. Feb.21 +23 30 8.09 +2.47 +23 30 10.56 19 1.90 .13 6.03 23 9.50 2.40 20 1.87 .19 5.99 24 10.95 2.35 21 0.04 .10 4.14 25 9.32 2.29 11.61 22 2.66 4.09 6.75 28 8.71 +2.11 10.82 93 1.71 +4.08 5.79 +23 30 11.00 +24 35 5.38 84 Oeminor. Feb.10 +22 42 38.06 +3.20 +22 42 41.26 cxlii COMPARISON-STABS. Stars observed with Mars on the Meridian. IjUmmJf 9*44,5 Piaaai V, 41 T.yloe I»I8 Oimwick 383 (9.*) («.7) (4.4) (3.5) [*) a A. m. >. 5 11 94.48 34.54 34.50 34.43 1890.0. • i n + 9746 1.9 0.1 57.7 58.7 Greenwich 571 (153,98) [490] h A. m, t. 7 36 15.31 1859.0. • i n + 9899 45.43 7 36 15 + 989945.43 LaUnde 15146 (1.1) Piazzi VII, 907 (6.7) Bewel 339 (1.1) Taylor 3299 (8.6) Twelve- Year 698 (3.7) Greenwich 573 (8.7) [99] ••' ..-. .. 73949.97 f ,- 49.94 49.50 49.91 49.38 1859.0. • ' /» + 3330 8.6 7.8 9.4 10.9 8.8 9.5 5 11 34 + 97 47 58.78 Oreenwfch 374 (97.78) [390] b ,.. 5 16 18.89 1850.0. • / H + 28 9830.77 5 16 19 + 28 28 30.77 7 39 42 + 23 30 9.38 I.alandr 10331-3 (3.3) I'iaizi T,96 (IS. 1C) Taylor 1W8 (C.S) Beael 405 (1.1) Greenwich 381 (1.1) [«] C »... .. 590 9.39 9.59 9.47 9.57 9.54 1850.0. • / // + 95 1 17 4 99.8 94.1 •kj 99.9 Lalande 15319-4 Piaui VI',339 Be«el 339 Taylor 3979 Greenwich 578 (3.3) (4.4) (1.1) (3.4) (4.4) [30] k k. m. i. 7 44 13.31 13.49 13.97 13.59 13.94 1859.0. • i n + 92 49 34.0 39.5 35.6 (49.5) 37.0 5 90 3 + 95 I 23.03 7 44 13 + 22 42 :«;.<•' Lilande 10510 Be«Kl 405 Piuzl T, 14S Taylor 9045 Gn-rnwich 395 (1.1) (1.1) («.«) (6.5) (9.9) (35] d ..... 5 97 47.04 46.85 46.69 46.86 46.91 1850.0. • i it + 96 49 31.8 34.6 99.6 99.1 30.7 Lalande 15795 IY-I/./.I vir.vsiu BcM.fl 339 Taylor 3409 Greenwich 593 (1.1) (9.9) (1.1) (4.4) (6.5) [50] 1 *.-... 7 57 50.51 50.44 49.92 49.59 49.85 1859.0. • i i> + 32 52 39.4 40.2 39.7 38.7 39.6 5 97 47 + 96 49 30.18 7 57 50 + 22 52 39.48 I.alande 10809 (1.1) Piawl V, 165 (7.8) Taylor 9071 (5.5) B«M>I 405 (1.1) Twelre-Year 478 (4.7) BUnker 1499 (9.9) Greenwich 402 (7-3) £83] e A. m. i. 5 3099.49 22.99 92.79 32.89 99.94 92.61 93.84 1849.0. • / n + 95 48 27.0 95.9 91.9 97.3 93.8 93.8 94.6 Lalande 16517-9 (3.3) Piazzi VIII, 65 pr. (6.7) Bowl 341,344 (2.9) Struve 994 (6.6) Taylor 3575 (6.7) RUmker 9516 (9.9) Greenwich 613 pr. (4.4) [193] m k. m. «. 8 17 51.94 51.49 51.31 51.36 51.33 51.15 1852.0. • / /< + 35 1 6.0 1.8 59.6 0.7 0 59.5 1 3.5 0 59.6 5 30 23 + 95 48 33.90 8 17 51 + 95 1 0.54 Lalande 11441 Piazzi V, 306 Ranker 1685 Taylor 9966 Greenwich 440 (1.1) (5.6) (16.10) (4.5) (9.9) [«] / ...... 654 55.35 55.45 55.48 55.89 55.74 1850.0. • / n + 95 98 40.4 39.0 49.3 37.6 37.7 Lalande 16597-9 Piazzi VIII, 78 Taylor 3594 Greenwich 617 (3.3) (15.14) (9.5) (4.4) [58] " ...... 8 19 49.53 49.73 50.09 49.89 1859.0. • / »/ + 94 37 58.0 56.8 S7.9 55.5 8 19 50 + 34 37 56.69 55455 + 9596 40.08 Lalande 16(85-7 PiaulVIII,84 Beuel 344 Taylor 3817 RUmker 9545 Greenwich 619 (9.9) (94.99) (1.1) (4.4) (1.1) (3.9) [59] ° *..... 8 99 45.41 45.95 44.90 45.39 44.97 1859.0. • i it + 94 34 35.8 38.4 34.9 34.0 36.0 34.5 Ptoixi V.3SO Taylor 9335 Ranker 1744 Onawtcb 458 (».») (10.9) (1.1) (1.1) (4.3) (MJ 9 ».«... 8 9 16.45 16.51 16.67 16.15 16.67 1849.0. • / // + 949653.3 69. 1 49.6 (».9) 51.7 6 9 M + 24 96 59.06 8 22 45 + 34 34 35.35 COMPARISON-STARS. Stars observed with Mars on the Meridian — Continued. cxliii 1852 0. 1852.0. P A.m. ». o / A. m. s. „ / i Lalande 16763 (1.1) 8 34 15.21 + 24 35 6. 8 Lalande 17514,5 (2 2) 8 45 26.96 + 20 31 21 5 Piazzi VIII, 89 (5.6) 14.99 3. 4 Piazzi VIII, 195 (6 6) 27.36 21 3 Bessel 344 (1.1) 14.94 4. 7 Taylor 3861 (3.4) 27.10 23 1 Taylor 3635 (3.4) 14.85 4. 2 Greenwich 633 (6.8) 14.71 4. 3 [62] 8 24 15 + 24 ai •1. 24 [20] 8 45 27 + 20 31 22 H ' 1853. 0. 1852.0. 9.9957 35 • 125 Tauri . . 6 1849.0 5 30 23 3.71 25 48 23.90 +2.58 n8.6132 8.7490 0.4124 n9.9964 83 / B.A.C. 1937 . •1 1850.0 5 54 55 3.71 2526 40.06 +0.44 n8.5763 7.9784 9.6476 n9.9999 62 * 5 Geminornm 6 1849.0 6 2 16 3.68 34 26 52.06 —0.20 n8.2739 n7.6139 »9.29»3 nfl.OOOO 54 k & Geminorum H 1853.0 7 36 15 3.73 28 23 45.43 —8.18 n8.7176 n9.2874 nO.9126 n9.9805 490 < 82 Geminorum 7 1852.0 7 39 42 3.60 23 30 9.38 -8.45 8.5597 119.2255 nO. 9270 n9.9575 101 * 84G«ratnonjm 6i 1853.0 7 44 13 3.57 22 42 36.87 —8.81 8.7278 n9.2294 nO.9450 n9.9534 32 i B.A.C. 3703 . 7 1853.0 7 57 50 3.56 22 52 39.48 —9.86 8.7874 n9.2814 nO.9940 n9.9399 52 m 34 u1 Cancri . 7 1852.0 8 17 51 3.58 25 1 0.54 —11.35 8.6493 r>9.3789 nl 0550 B9.9162 121 « 38 »• Cancri . •>:! n9.8754 20 9 H. 0. 17908.9 7* 1852.0 8 45 45 3.49 22 46 35.63 —13.37 9.0407 (19.4086 nl.1230 n9.8749 29 * c, 118 Tauri, as one maw. cxliv OBSERVATIONS. §6. OBSERVATIONS. The observations have, in almost every case, been reduced anew, as far as the data permitted, and the results are given in detail. The right-ascensions are given where space conveniently allows: both the observed and, in a subsequent section, the computed values. Although only approximately required for our purpose, it seems well to append them to the other results when no obstacle exists, both on account of completeness and for convenience of use. The observa- tions for each planet and each series are naturally grouped together, and the results of each group considered by themselves. The positions of the comparison-stars constitute a first requisite, and the observations for each series are preceded by a table of apparent places, containing for every star employed the dates on which it was used, the reductions from mean to apparent places, and the resulting apparent declinations. I. FIRST SERIES OF OBSERVATIONS OF MARS. Apparent Places of Stars compared with Mars during the first Series of Observations. No. D«te. Reduction in Apparent So. Date. Beduc^U, Apparent a. S. a. 8. a. 8. a. 3. i. n k.m.t. • / */ •. u k. m. I. • i n 1 l8M.-Jan 7 +0.74 —6.17 turn +96 19 59.9 13 1849 — Dec. 9 +4.25 -7.99 554 8 +96 16 99.4 19 0.79 6.09 56 38 13 0.0 11 4.98 7.89 54 8 99.4 17 0.89 5.89 5438 0.1 14 Dec. 11 +4.98 7.94 55439 +96 90 59.9 1 Jan. 10 +0.7S —8.96 535 +96 1C 13.1 13 4.39 7.90 54 39 5J. 2 14 0.73 6.13 3 5 13.9 15 Dec. 3 +4.19 —8.73 6 1 35 +96 9 7. 18 0.71 6.09 3 5 13.3 6 4.17 8.71 1 35 7. S Jin. 19 +0.64 —6.93 5 1030 +98 5 42.6 9 4.29 8.67 1 35 7. II 0.57 6.08 10 30 49.8 16 Dec. 4 +4.13 —8.81 6 296 +26 033. 31 0.43 5.88 10 99 43.9 8 4.90 8.77 996 33. 4 Jan. 3 +0.78 -«.87 5 1749 +26 96 46.9 17 Nor. 99 +3.83 —9 09 669 +25 99 14.0 8 0.78 8.77 17 49 47.0 96 3.99 9.10 6 9 14.0 9 0.78 6.86 17 49 47.3 18 Nor. 94 +3.87 — S.27 6 7 39 +25 39 19.5 5 1849— Dec.29 +0.77 —7.16 591 43 +96 97 39.5 • 3.98 9.98 739 19.5 31 0.78 7.09 91 43 39.5 1850.— Jan. 9 0.80 7.01 91 43 39.6 19 NOT. 23 +3.84 -9.44 6 9 30 +95 34 53.3 27 3.94 9.46 930 53.9 e 1849 — Dee. 97 +4 49 —3.97 599 38 +98 34 1 .9 31 4.81 3.83 2337 9.1 90 NOT. 28 +3.96 -9.68 6 11 38 +25 45 36.6 • Dec. 1 4.09 9.69 11 36 36.6 7 Dec. 98 +4.48 —4.37 S 95 44 +28 98 58.9 • 4.49 4.30 95 44 58.3 U NOT. 19 +3.70 —9.84 6 15 30 +25 7 10.2 30 4.90 4.93 9545 58.4 93 3.80 069 16 30 10.2 8 Dec. 90 +4.44 —5. OS 599 37 +96 31 99.4 88 NOT. 24 +3.83 -10.11 6 16 51 +95 35 14.7 94 4.47 4.87 99 37 99.6 • 3.93 10.14 16 51 14.7 98 4. SO 4.74 99 38 22.7 83 NOT. 29 +3.78 —10.19 6 18 3 +95 97 13.4 t Dec. 19 +4.49 —5.39 539 16 +26 31 48.5 26 3.87 10.99 18 3 13.4 94 4.47 S.17 39 16 46.6 M Oct. 31 +3.13 —9.55 6 1848 +94 90 21.4 19 4. SI 5.00 39 17 46 8 NOT. 4 3.94 9.64 18 48 21.4 1* Dec. 10 +4.99 -t.e» 54439 +96 99 54.5 95 NOT. 25 +3.85 —10.38 6 19 2» +95 42 99.7 14 4.34 6.80 44 39 54.6 Dec. 1 3.99 10.43 19 29 22.6 18 4.39 6.73 4439 S4.7 86 NOT. 19 +3.87 —10.35 6 91 6 +25 14 16.6 11 Dec. 14 +4.35 —7.01 5 46 19 +96 98 39.5 23 3.78 10.49 21 6 16.5 18 4.38 6.95 46 19 396 97 NOT. 30 +3.98 -10.60 691 15 +25 46 30.0 18 4.41 9.90 46 19 39.7 Dec. 4 4.05 10.69 21 15 29.9 1* D*e. 8 +4.93 —7.35 54839 +95 55 38.5 88 NOT. 29 +3.76 —10.50 6 21 40 +95 31 S.8 10 4.97 7.3S 48 39 38.5 3.86 10.57 91 40 5.7 OBSERVATIONS. Apparent places of Stars — Continued. exit Reduction in Apparent. Reduction in Apparent. No. Date. No. Date. a. 8. a. 3. a. d. a. d. 9. _ h. m. s. « / // f. lt h. m. a. ° / // 29 1849.-Dec. 27 4-4.49 —10.89 6 25 31 4-26 33 40.7 33 1849.— NOT. 2 4-3.13 —10.30 6 27 56 4-24 30 54.5 31 4.54 10.84 25 33 40.8 8 3.31 10.47 27 56 54.3 30 Nov. 13 +3.48 —10.60 6 25 47 4-S5 1 46.7 18 3.63 10.71 85 48 46.6 34 Nov. 12 4-3.43 —10.77 6 28 49 4-24 57 13.6 31 NOT. 10 +3.39 —10.44 6 85 50 4-24 44 34.1 17 3.57 10.91 28 50 13.5 15 3.53 10.56 85 51 34.0 32 NOT. 9 4-3.14 —10.27 6 27 84 4-94 38 38.8 35 NOT. 19 4-3.61 —11.51 6 34 42 4-25 16 18.3 6 3.26 10.40 87 24 38.7 24 3.75 11.63 34 42 18.1 A.— OBSERVATIONS OF MAES I, WITH THE SANTIAGO EQUATORIAL. In the reduction of these observations the following errors were assumed in the printed copy : Pages 8,4,5, December 11, &l should be negative throughout, and the signs in Col. Micr. reversed, excepting No. 31. 4, an error of one revolution assumed in No. 27. 6, » 12, Nos. 13, 25, 26, 33, reverse the signs in Col. Micr. " " 26, Micr., for 0.08 read 1 08. 8, " 13, " 38, Micr., 11 9.24 " 5. 24. " 64, *l 11 3.15 " 3. 05. 11, 15, " 32, 11 4.55 " 4. 59. " 40, || 5.46 " 5. 52. 13, •• 16, " 16, <| 1.72 " 1. 82. 14, '• " 48, II 1.77 " 1. 71. 16, " " 67, II .79 " 6. 79. 23, 21, " 8, II 2.78 " 2. 76. 24, " 22, " 20, It 0.35 " 1. 35. " 48, || 1.25 " 1. 15. 26, 23, « 54, " 0.46 " 0. 54. 38, » 30, " 38, it 6.33 " 6. 36. 50, January 7, " 34, ii 10.46 " 10. 86. 53, 9, " 12, it 18.16 " 18. 26. ** 14 it 17.32 " 17. 33. 60, " u, " 20, ii 2.05 " 2. 15. " 46, ii 1.25 " 1. 35. 69, " 20, " 24, ii 12.92 " 12. 72. 74J •• 24, •• 12, ii 3.35 " 3. 25. 19, " 27, " 30, ii 1.79 " 1. 69. CXlvi OBSERVATIONS. These necessarily introduce changes into the table of " Results," and from these and other sources slight errors have arisen, which have beeu corrected in the present computation, as indicated below. The numbers of the lines as cited are counted from the beginnings of tho several printed tables of Results. Page 3, lines 1, 2, for Eight rtad Kino. 5, In Col. Bev . reverse the sign. lino 4, 9. 039 = 2 •66". 17 read 9. 150 = 2' 68". 33 " 16, II 0.965 _ 18.81 " 1. 076 =r 20.97 18, 41 16.86 it • 19.02 8, " 2, II 2.719 ! " 52.99 ii 2. 713 = 0 52.88 13, " 3, II 4.286 ! I 1 23.63 ii 4. 307 = 1 23.90 16, " 2, II 1.650 : ; II 32.16 ii 1. 606 = 0 31.30 17, " 6, II 1.030 irr 20.25 " 0. 995 = 19.39 " Q vt Ii 17.99 If 17.13 23, " 2, If 2.757 . 27, •' 2 23. 503 read 2 S3. 503. 364, Comparisons Nos. 66 to 70 are excluded, as evidently containing some source of error not detected. 364, December 6, No. (8, /or 2 37. 498 nod 2 27. 498. 365, ' < 11, Mars N. P., for 6 rtai 5. 366, < < 12, No. 27, far 3. 398 read 3. 388. 368, ' < 17, Comparison No. 60 is excluded from the moan. 369, < < 27, Nos. 16, 17, 20, for 1. 080, 2. 061, 2. 074 read 1. 088, 2. 060, 2. 064. 371, ' ' 31, Comparison No. 21 is excluded from the mean. 373, January 5, No. 26, for 8. 609 nod 8. 069. Comparison No. 33 is excluded from the mean. The results of this series of observations will then be as follows, so far as they pertain to the measurements of declinations : Washington Observations of Mars during the opposition of 1849-50. Date. Star. Chron. time. Chron. corr. Limb. A! No. Com p. R«T. Arc. A. m. f . •. t it 1849.— Nor. 9 B Z. 348.84 S 99 SO. 74 -f 43.83 8. •f 0.394 4.98 3 6 10 S.14 43.81 N. -f- 1.681 85.84 3 4 B.Z. 348.85 4 20 37.00 49.40 N. — 9U.947 5 11.93 S 4 18 13.08 49.49 8. —91.735 S 34.13 S 5 23 35.03 49.46 N. —19.877 S 5.54 7 S. —91.083 594.08 7 1 B. Z. 346.85 4 17 34.45 54.47 N. + 0.390 4.89 8 8. — 1.139 17.35 1 19 Lai. 12357 4 39 45.41 1 5.1? N. +14.898 3 47.93 19 S. +13.090 3 90.14 18 ( 7 40.33 1 5.94 N. + 15.504 358.39 8 8. + 13.856 3 33.09 6 13 L:l. 19557 3 55 40.33 1 6.98 N. +98.943 6 43.40 15 8. +84.834 6 91.74 15 94 B.Z. 5-23.106 4 99 45.71 1 97.40 8. + 9.104 39.34 5 4 97 48.33 1 97.40 N. + 3.407 59.37 5 • Lai. 19937 4 38 18.78 1 39.34 N. — 1.091 15.69 98 8. — 9.453 37.71 98 84353.78 1 39.55 N. + 0.966 4.40 11 B. — 1.175 18.08 11 Dec. « Lai. 11714 5 9 34.39 1 53.91 B. +90.451 S 14.37 13 5 11 49.06 1 53.91 N. +91.853 5 35.91 U Lai. IIM4 4 44 48.40 1 53.91 B. + 14.301 3. 19.83 9 4 54 41.88 1 53.91 N. +15.754 4 9.17 8 11 RUmkerl673 3 37 45.09 9 3.79 8. +4.809 1 13.81 6 3 48 33.08 9 3.79 N. + 6.357 1 37.73 5 11 KUnii.r 1680 487 9.0C 9 6.49 8. — 5.140 1 19.01 8 4 3951.73 9 8.49 N. - 3.638 55.99 7 17 B. Z. 400.56 4 18 44. S3 9 19.19 N. + 9.891 45.88 16 4 31 51 35 +9 19.90 B. + 1.717 98.39 99 OBSERVATIONS. cxlix Washington Observations of Mars during the opposition of 1849-50 — Continued. Date. Star. Cbron. time. Chron. corr. Limb. Ad No. Conip. Rev. Arc. A. m. f. m. *. / // 27 B. Z. 405.38 356 0.34 +3 34.48 8. — 2.347 36.08 32 3 55 41.88 2 34.48 N. — 1.114 17.68 30 31 B. Z. 405.15 4 627.96 2 46.40 8. + 4.451 1 8.43 13 4 9 35.92 +2 46.40 N. + 6.036 1 32.78 12 1K50.— Jan. 5 B. Z. 523.15 4 2 38.35 —1 3.10 8. — 8.097 3 4.46 13 4 25 48.43 1 3.08 N. — 6.782 1 44.25 13 9 B. Z. 533.15 3 54 39.60 54.20 8. —33.644 6 3.44 7 4 1 16.39 54.30 N. —33.638 5 47.98 7 12 B. Z. 396.4 3 40 55.!i5 45.67 S. + 4.824 1 14.15 8 3 43 30.36 45.67 N. + 5.922 1 31.04 6 14 B. Z. 396.4 4 26 35.37 37.94 8. — 3.577 54.98 2 4 34 35.12 37.93 N. — 2.329 35.80 2 33 B. Z. 405.6 4 13 11.35 31.23 8. + 8.924 2 17.17 11 4 18 37.31 31.33 N. -f 9.894 3 32.08 10 39 B. Z. 405. « 3 14 13.53 19.86 8. — 7.765 1 59.36 3 3 20 14.31 — 19.86 N. — 6.654 / 1 42.28 3 We thus obtain a series of observations which, when arranged like those at Santiago, give the annexed table : MARS I. Observations with the Washington Equatorial. Date. Obi. part. Wa.h. 8. T. Wash. M. T. t—T. Star No. Star'! d. Meas.Z>£. Refr. Ob»'d 8. No. Comp. N. 8. A. m. f. A. m. t. d. • * n / n « 1849.— Nov. 2 N. 8. 5 30 44.34 14 30 56.64 —58.39518 24 +24 30 21 .40 +0 15.41 0.00 +34 20 36.81 3 3 4 N. 8. 4 15 24.50 13 17 55.68 56.44588 33 34 30 54.39 -5 22.68 0.10 24 25 31.61 5 5 N. 8. 5 24 24.48 14 36 44.36 56.39810 33 34 30 54.39 —5 14.81 0.09 24 25 39.49 7 7 6 N. 8. 4 18 28.92 13 13 7.78 54.44922 33 24 30 54.33 — 6.31 0.00 24 30 48.12 8 8 13 N. 8. 4 40 90.53 13 11 50.28 48.45011 31 24 44 34.08 +3 34.06 0.06 34 48 8.20 19 19 N. 8. 6 8 45.56 14 39 30.91 48.38923 31 24 44 34.06 +3 45.70 0.06 24 48 19.84 6 6 13 N. 8. 3 56 47.19 12 33 58.25 47.48335 31 24 44 34.06 +6 32.56 0.13 34 51 6.74 15 15 34 N. 8. 4 38 44.43 13 10 35.56 36.49264 23 25 27 13.40 + 43.36 0.00 25 27 55.76 5 5 • N. B. 4 37 49.13 '• 13 13 46.63 34.49043 22 25 35 14.71 — 26.62 0.00 25 34 48.09 29 29 N. 8. 6 45 26.33 ( 14 21 2.93 34.40205 83 25 35 14.71 — 6.81 0.00 25 35 7.90 11 11 Dec. 6 N. 8. 4 51 38.35 11 48 14.49 94.50817 IS 96 3 7.39 +3 51.06 0.07 36 5 58.52 8 9 N. 8. 5 13 34.90 i 13 9 7.00 34.49366 16 96 0 33.09 +5 35.14 0.10 26 5 58.33 11 13 11 N. i. 3 50 13.77 10 37 19.43 19.56436 13 36 IP 2-2.42 +1 25. H 0.00 36 17 48.19 5 6 13 N. 8. 4 33 6.83 11 5 10.69 18.53807 14 26 20 52.67 —1 7.47 0.03 36 19 44.68 7 8 17 N. 8. 4 27 37.13 10 41 3.19 13.55484 11 26 36 39.63 + 36.31 0.02 26 27 15.95 16 21 27 N. 8. 35825.54 93336.26 — 3.602.16 8 26 31 22.67 — 36.83 0.00 36 30 55.85 30 22 31 N. 8. 4 10 43.34 9 39 8.40 + 0.39524 5 26 27 39.52 + 1 20.64 0.03 26 59 0.18 12 12 1850 — Jan. 5 N. 8. 4 13 10.30 9 11 55.41 5.38338 4 26 26 47.00 -1 S4.22 0.04 26 24 52.74 12 19 9 N. 8. 3 57 3.80 8 40 7.90 9.36120 4 26 26 47. IS —5 55.63 0,10 26 20 51.42 7 7 13 N. 8. 3 40 57.14 8 13 16.15 12.34185 2 26 16 13.15 + 1 22.65 0.09 38 17 35.83 6 8 14 N. 8. 429 52.31 8 53 11.48 14.37027 3 26 16 13.23 — 45.28 0.02 26 15 27.92 2 2 22 N. 8. 4 15 28.06 8 7 22.31 22.33845 3 26 5 42.68 +2 24.63 0.04 28 8 7.35 10 11 29 N. 8. 3 16 54.06 6 36 36.54 +29.27531 3 +26 5 42.88 —1 50.82 0.04 +26 3 52.02 3 3 OBSERVATIONS. C.— OBSERVATIONS OP MARS I, WITH THE GREENWICH EQUATORIAL. MAR* I. Observations with the Greenwich equatorial. Due. Ota. put. <•• Wwfc. M. T. <— T. ft» Mart J. Utu.D3. Kefr. Ota>4 d. No. 0 6.58 38 . /*>.» 3 M 17.3 30.13M9 53.59 98.91 -•j • M 3 91.74 7.94 r«b. • . 11 6.50 95831.3 37.1MM 1.97 97.47 • • M 33.33 5.96 7 . 11 49.75 9 53 18.5 38.11035 7.77 27.89 IJ • M (5.15 7.99 • • 1394.15 9 47 0.8 40.11598 90.97 17.58 31.89 M 13.78 6.79 13 B, 17 9.85 • 31 li.3 44.1*758 98.78 M.86 • • M 5.91 6.39 18 M. •0 11.09 9M 15.3 47.10158 95.71 M.38 31.90 M 10.14 5.14 11 0. SM 8.M • 1131.9 89.0HM 91.35 •7.88 39.17 M 19.47 a 0. 5*715.10 1 9 59.7 + 53.0M19 90.90 | , 39.06 M M.M OBSERVATIONS. Cli E.— OBSERVATIONS OF MARS I, WITH THE CAPE EQUATORIAL. The changes made are contained in the following table, which comprises some conjectural emendations, as well as more evident errors of reduction or observation : Page 467, line 4, the declination of Lalande 11946, the comparison star of November 25, 26, seems to be correct, but the right ascension given is 1m. too great. 471, November 21, No. 6, Are Ad, for 22' 21".54 read 23'21".54. 472, " 25, " 2, " 1322.93 '• 13 4.16 " 5, " 13 9.90 " 13 2.86 " 8, " 13 4.68 " 13 2.34 " 11, " 13 0.77 " 13 1.95 The comparison stars are Lalande 11946 and 11976,8. The app. declination of the latter should read 25° 36' 4". Arc Ad *JO, nUVeillUCI HI, 1 > ". "> j\n ao r "./ 41 1 1 . *o n • ,. 484, " 18, II 1, Arc Ad II 18' 39". 38 M 18' 36". 38 II 21, il 2, Clock II 6A. 15m. 54*. M 6A. 14m. 54>. il 4, II 6 23 30 II 6 29 30 485, 21, " 5 to 8, Hour-circle " 12 1 1 13 485, " 22, ii 3, Arc Ad II 12' u> '.92 M 12' 27". 25 ii 7, II 12 III. 03 tt 13 40.03 ii 8, II 12 65. 31 li 13 66.31 485, " 28, ii 1, II 12 M 61 il 12 58.87 487, " 26, ii 14, II 13 4. 69 II 18 4.68 ii 17, II 13 i:i. 01 II 13 15.01 ii 18, II 13 2. 87 ii 13 2.76 488, " 26, ii 37, II 13 is. 63 il 13 18.14 487,8, " 28, ii 8. The planet seems to have been compared througl 489, January 8, each star. One of these is lAlando 10609, as given in the flrst flvo comparisons for each limb ; the other comparisons on page 488 being the last flvo for each limb with the other star, which is No. 8 of our General Catalogue. 6, Arc Ad /or 18' 14". 91 read 18' 32". 74 6, " 18 29.24 " 9 8.55 7, " 18 16.89 " 18 34.72 8, " 13 46. 87 " 9 25. 18 clii Page 4 89, January 480, " 491, <• 49J, 8, No. 9, •• 10, 9, » 6. " 8, " 10, 14, 17, " >, " H, " H, OBSERVATIONS. Arc Att for 18' 35". 81 ii 13 34.61 it 13 63. 17 ii 9 49.45 ii 9 48.16 • i 9 50.85 ii 11 28. SI M 11 S8. 71 41 13 42.48 II 13 42. 17 II 13 42.38 read IS' 36". 81 9 13.81 9 32.48 9 31.20 9 30.00 9 32.69 11 29.01 11 29.61 13 42. 74 13 42.43 13 42. 64 The redactions in the Monthly Notices R.A.S. X, p. 156 having proved very useful in these computations, a few corrigenda to the series as there given are appended : November 21, Cape S. T., for 7k. 47m. 45j. 74 nod 5A. 47m. 45j. 74. " 25, Name » H. C. 11946? " H. C. 11946 " 25, " •• 26, " December 2, No. of Oba. " 25, Excess " 26, Excess Anon. " H. C. 11946? " 6 " — 0'14". 143 " — 0 5.387 " Lalande 11976,8 H. C. 11946 4 — 0' 14". 643 + 05. 387 After introducing these emendations, we obtain detailed results of observations as follows : Micrometer-Observations of Mars at the Cape of Good Hope during the opposition of 1849-50. Due. Limb. No. Hoar circle. Clock. * Jd. Mlcr. Are. *.!»... A. m.i. T. / /; 1849.-Nor.Sl N. 9 « 1 95 8 1 37 B. A. C. 9058 4-33.468 10 11.80 8. a 5 33 SB 5 34 19.5 +99.774 9 53.70 N. 9 6 1 95 6 1 37 tOeminor. + 9.437 1 3.54 S. 9 5 3326 5 34 12.5 + 1.679 0 43.50 • N. a 7 4 It 7 4 18 +10.679 4 38.99 S. i 7 91 47 791 56 +10.183 4 85.49 94 M. 9 04999 I.nl. 11854 +19.719 5 31.49 8. 9 • 91 48 +11.940 S 11.98 • N. 3 6 10 47 L*l. 11946 — 9.544 1 6.39 8. 3 63« 3 -3.048 1 19.45 N. 3 8 10 47 Lai. 11976,8 — 8.711 3 47.08 8. 3 896 3 — 9.906 3 59.99 98 N. 3 147 3 Lai. 11946 — 5.580 994.95 8. 3 7 0 11 — 5.013 9 10.68 N. 1 6 47 3 Lai. 11978,8 + 0.4SS 11.83 8. 9 7 0 11 + 1.184 30.88 27 N. 7 C 0 44 8 1 13 Lai. 19336 +10.359 4 99.87 8. 7 6 741 6 756 +10.969 4 45.96 98 It. 8 5 SB 44 55856 + 9.653 1 9.13 8. « 6 536 6 544 + 3.998 1 94.17 • N. 3 • 01 11 8 51 94 — S.t77 9 17.58 8. 3 1 5949 6 59 56 - 4.717 9 9.97 X M. 9 SKI 7 59390 -19.348 591.86 8. 9 533 9 5 33 19 —11.768 5 6.72 Dee. 1 N. 3 t 958 6 3 10 Lai. 12395 —10.393 4 30.94 8. 9 « 938 6 9 49 — 9.758 4 14.38 t N. 9 7 18 39 7 1831 -17.989 7 48.96 8. 9 7 3333 73331 —17.489 7 35.41 3 M. 3 8 9 18 Lai. 11884 +11.385 7 81.80 8. 3 8 11 t +11.947 S 11.44 OBSERVATIONS. Micrometer-Observations of Mars at the Cape of Good Hope — Continued. cliii Date. Limb. N°. Hour-Circle. Clock. * Ad. Micr. Arc. h. m. s. h.m. 8. r. / // 1819 — Dec. 4 N. 4 5 58 5 5 58 16 Lai. 11684 + 4.537 1 58.28 S. 4 6 5 1 6 .5 22 + 5.080 2 12.43 5 N. 5 5 49 18 M — 2.031 52.93 S. 5 5 54 50 — 1.453 37.84 6 N. 5 5 44 25 5 44 35 H — 8.359 3 37.92 S. 5 5 47 45 5 47 55 — 7.832 3 23.80 N. 4 6 34 49 6 35 0 — 8.579 3 43.64 S. 5 6 34 48 6 35 0 — 8.004 328.67 7 N. 5 5 25 2-2 II —14.497 6 17.91 S. 5 527 55 —13.867 6 1.49 N. 5 6 8 30 +14.726 6 23.88 S. 5 6 11 8 +14.071 6 6.86 8 N. 5 5 50 58 H +30.311 8 49.50 S. N. S 5 5 53 46 5 32 48 +19.749 —2V 556 8 34.80 8 55.94 8. 5 6 35 53 —19.975 8 40.73 » N. 3 6 13 20 6 13 31 139 Tauri +40.879 17 45.69 8. 3 6 29 45 6 39 54 +40.384 17 32.79 N. 3 6 13 20 6 13 31 Lai. 11684 +26.024 11 18.44 8. 1 6 29 45 6 39 54 +25.494 11 4.61 10 N. 3 6 50 9 6 50 13 Lai. 11108 —16.426 7 8.20 8. 2 7 551 7 5 57 —16.976 7 22.54 N. 3 7 57 27 7 57 30 +16. 162 7 1.34 8. 3 8 15 33 8 15 34 +16.711 7 15.64 11 N. 3 6 30 49 6 20 41 H +11.630 5 3.17 8. 1 6 32 16 6 3223 +13.228 5 18.78 14 N. 5 5 48 9 5 48 15 (( — 0.978 25.49 8. 5 5 56 35 5 58 44 — 0.388 10.12 IS N. 5 5 29 S3 ft — 4.419 1 55.20 S. 5 5 34 39 — 3.853 1 40.45 16 N. 5 5 26 52 - « — 7.699 3 20.71 8. 5 5 30 9 — 7.002 3 2.53 N. S 6 3 56 -7.654 3 19.53 8. 5 6 356 — 6.994 3 2.33 N. 5 6 28 44 + 7.788 3 22.97 8. 5 6 28 44 + 7.150 3 6.44 17 N. 5 688 II —12.436 5 24.31 8. S 6 10 49 —11.876 5 9.60 N. S 6 41 40 + 8.485 3 41.19 8: 5 6 4352 + 7.917 326.38 18 N. 5 5 47 0 H +12.858 5 35.19 8. 5 5 50 41 +12.313 5 20.98 N. S 6 33 49 6 33 54 —13.640 5 34.73 S. 5 6 37 35 6 37 39 —12.337 5 21.61 20 N. 3 525 85 5 25 33 Lai. 10669 — 3.766 1 38.18 8. 3 5 33 51 5 33 59 — 4.432 1 55.53 N. 3 646 6 4 10 + 3.798 1 39.02 8. 9 6 13 7 6 13 12 + 4.360 1 53.65 31 N. 3 6 15 43 6 15 43 u + 2.472 1 4.43 S. S 6 22 11 6 22 12 + 3.046 1 19.41 N. 3 6 46 7 6 46 11 — 2.359 1 1.49 a. 3 6 53 55 6 52 57 — 2.982 1 17.74 33 N. 3 5 59 39 5 59 16 it — 1.336 34.57 8. 3 6 4 33 6 4 41 — 1.931 50.31 N. 3 6 35 37 6 35 33 + 1.474 38.43 8. 3 6 30 11 6 30 18 + 3.038 53.18 v° CUT OBSERVATIONS. Micromcter-Observationt of Mars at the Cape of Good Hope — Continued. DIM. Limb. N«. Hour Circle. Clock. « Jd Micr. Arc. *. m. *. k. m. i. r. i it 1M9.-DM. S3 N. 1 £98 1 598 1 Lai. 10669 + 0.796 0 18.93 8. 1 S 31 98 6 il 29 + 1.948 33.53 • N. S 574 5 7 17 M + 0.959 6.56 8. 1 S 9 30 5 9S9 + 0.839 91 69 N. S 5 37 90 53798 + 0.969 6.W 8. 6 5 39 53 5 40 1 + 0.860 99.43 • N. S 4 44 15 11 + 0.468 19.19 8. 5 4 4838 Gen. Cat. NV 8 + 1.039 97.06 N. 5 533 « -0 499 H • 8. S 5 35 S + 0.079 9.06 • N. 3 596 55 5 97 9 Lai. 10669 + 9.643 1 8.91 8. 9 59799 59796 + 3.990 1 93.94 30 N. 1 M + 3.827 1 39.77 1850—Ju. 7 N. 9 5 S3 47, 5 34 12 B.A.C. IMS -93.990 10 95.40 8. 9 65591 5 55 96 -23.436 10 10.94 8 N. 1 4 46 53 447 0 a A. C. 1569 —14.390 8 15.13 8. 1 5 954 538 —13.789 7 58.47 N. 9 5 4859 54818 -91.619 993.60 8. 9 8 8 13 6 990 —91.060 9 9.09 9 0. 4 S 44 34 5 13 8 M —18.933 8 13.57 10 C. 4 5 18 10 5 18 19 (C -16.538 7 11.14 11 N. 9 5 27 14 59799 N -14.970 6 19.00 8. 9 5 45 1C 5 4593 —13.798 559.46 19 N. 9 S 37 40 5 37 43 • —11.744 5 6.17 8. 9 553 49 55359 —11.309 4 54.64 14 N. 3 536 97 596 44 tc -6.937 3 0.83 8. 3 5 4040 5 4055 — 6.454 9 48.96 IS N. 3 5 9 30 5 9 47 (I — 4.538 1 58.30 8. 3 S 16 40 5 16 56 — 4.119 1 47.90 It N. 3 54095 S 40 37 it — 9.2J1 57.91 8. 3 5 44 90 5 44 19 - 1.733 45.95 17 N. .1 5 10 55 5 11 3 m — 0.087 0.69 8. 3 593 43 594 13 + 0.481 19.55 0. 1 4 SO 93 4 50 31 + 0.909 5.97 These reductions rarely afford precisely the same figures as are given in the Memoirs and Monthly Notices of the Royal Astronomical Society, although only few cases occur in which the discordance reached an amount capable of sensibly affecting the results. This seems best expli- cable upon the assumption that some little excess of delicacy was used at the Cape in points where the consequent accuracy was uot thought to warrant fuller minuteness in publication, inas- much as the effect would not be appreciable. In such instances, the figures published by Mr. Maclear have been employed ; and the only deviations from the values given by that zealous and accomplished astronomer are for those cases in which the discordance is clearly due to some oversight in the reduction. This remark applies especially to the Cape sidereal times of observation, which appear to be means between the corrected indications of the clock and those of the hour-(iircle, and in which the want of entire accordance seems owing merely to some Blight difference in the assumed correction of the ephemeris in right-ascension. OBSERVATIONS, civ SIAHS I. Observations with the Cape Equatorial. Date. in,-, part Cap* 8.T. Wash. M.T t— T. Star N". Slat's d. Corrected D3. Meas'd d § Kefr. Obs'd d. N°. of .•' n,;> N. S. 4. m. f. A. m. t. d. • / // t n i a n • / // 1849.— NOT. 31 N. S. 5 47 45.74 7 22 6.74 -39.69298 31 +25 7 10.18 +10 3.41 +10 2.75 0.66 +25 17 13.59 2 3 N. S. 5 47 45.74 7 32 6.74 39.69-298 35 16 18.31 + £362 + 0 53.56 0.06 17 11.83 2 2 • N. 8. 7 13 0.91 8 43 12.06 38.63666 35 16 18.20 + 4 32.12 + 4 31. t2 0.30 20 50.32 2 2 34 N. S. 6 32 8.96 7 54 34 96 36 67043 17 •--' 14.04 + 5 21.69 + 5 21.34 0.35 27 35.73 2 2 35 N. S. 6 18 31.45 7 i7 3.77 35.66260 18 33 12.47 - 1 12.98 — 1 12. VB O.C8 30 59.51 3 3 N. 8. 6 18 31.45 7 37 3.77 35.68260 19 34 53.25 — 3 53.75 — 3 53 50 0.25 30 59.50 3 3 86 N. S. 6 53 40.73 8 8 11.37 34.66098 18 33 12.46 + 2 17.96 + 2 17.81 0.15 34 30.42 3 3 87 N. S. 6 4 18.311 7 15 1.13 33.69790 25 42 22.65 — 4 38.21 — 4 37.91 0.30 37 44.44 7 7 28 N. B. « 3 13.44 7 9 3.70 33.70205 35 4222.64 — 1 16.73 — 1 16.65 0.08 41 5.91 6 6 • N. B. 6 55 30 81 7 58 13.43 31.66790 85 42 22.63 + 3 10.41 + 3 10.26 0.15 44 33.04 3 3 30 N. 8. 5 38 15.58 6 37 16.58 30.73106 35 42 22 61 + 5 14.65 + 5 14 29 0.36 47 37.26 2 2 Dec. 1 N. 8. « 3 55.97 6 57 55.39 39.70978 87 46 29.94 + 4 22.95 + 4 22.66 0.29 50 52.89 3 2 3 N. 8. 725 1.93 8 15 51.98 38.65565 27 35 46 39.94 + 7 42.39 + 7 41.83 0.56 54 12.33 2 2 3 N. 8. 6 339.66 6 50 36.96 27.71485 15 98 3 7.37 — 5 4.46 — 5 4.19 0.34 25 57 2.91 3 3 4 N. 8. 6 1 40. JS 6 44 53.27 26.71884 15 3 7.37 — 9 5.49 — 2 S.35 0.14 26 0 1.88 4 4 5 N. 8. 5 53 5.86 6 31 33.39 25.72820 IS 9 7.38 + 0 45.44 + 0 45.59 o.os 2 52.82 5 5 6 N. S. « 9 45.67 6 45 4.61 24.71670 15 2 7.39 + 3 ?3.75 + 3 33.51 0.24 5 41.14 10 10 7 N. 8. 5 48 18.48 6 19 44.83 23 73629 15 2 7.40 + 6 12.46 + 6 12.04 0.42 8 19.86 10 10 8 N. 8. t 13 28.43 6 40 52.75 22.72161 IS 3 7.41 + 8 45 83 + 8 4J.24 0.5'J 10 53.24 10 10 » N. 8. 6 34 47. 8b 6 48 16.42 21.71648 15 26 3 7.43 + 11 13.99 +11 11.52 0.77 13 19.73 3 1 N. S. 6 21 37.30 6 45 6.38 21.71868 13 35 55 38.50 +17 40.45 +17 39.24 1.21 13 18.95 2 2 10 N. 8. 7 33 9.79 7 51 31.39 20.67255 10 36 22 54.53 — 7 19.51 — 7 11.94 0.57 15 42. 01 4 4 11 N. S. • 34 39.74 6 40 16.48 19.72303 10 3354.54 — 5 11.33 — 5 10.97 0.36 17 43.21 2 1 14 N. 8. 5 53 35.34 5 56 19.63 16.75355 19 • ; H.tl + 0 17.83 + 0 17.81 0.03 23 12.44 5 5 IS N. 8. 5 33 6.06 5 32 7.77 15.76936 10 22 54.63 + 1 47.94 + 1 47.82 0.12 24 42.57 5 5 It N. S. 5 38 35.44 5 34 41.81 14.774J2 10 23 54.65 + 3 11.64 + 3 11.62 0.92 36 6.49 5 5 N. 8. 6 16 21.04 6 13 19.59 14.74144 10 32 54.65 + 3 13.04 + 3 12.82 0.33 96 7.69 10 10 17 N. 8. 636 8.30 6 18 9.34 13.73739 10 32 54.66 + 4 95.65 + 4 25.31 0.31 27 20.31 10 10 18 N. 8. 6 13 18.38 6 0 35.67 12.74970 10 3254.68 + 5 28.51 + 5 28.13 0.98 2823.19 10 10 90 N. 8. 5 49 10.66 5 29 30.01 10.77118 9 31 46.49 — 1 46.73 — 1 40.60 0.19 29 59.77 4 4 SI N. 8. 6 34 13.76 6 1029.83 9.74271 9 31 46.52 — 1 8.0!) - 1 6.00 0.09 30 38.43 4 4 • N. 8. « 15 1.00 5 47 34.30 8.75875 9 31 46.95 — 0 44.17 — 0 44.12 0.05 31 2.38 4 4 33 N. 8. 539 48.99 4 58 43.78 7.79278 9 31 46.58 — 0 25.76 — 0 25.73 0.03 31 20.82 1 1 34 C. 6 32 30.33 5 56 48.85 6.75331 9 31 46.61 — 0 16.00 — 0 15. 88 0.03 31 30.61 3 Si N. 8. 5 836.05 429 13.53 5.81305 9 31 46.64 — 0 14. IS — 0 14.13 0.03 31 32.49 5 5 N. S. 5 38 43.35 4 59 23.87 5.79209 9 31 46.64 — 0 14.66 — 0 14.64 0.02 31 31.98 5 5 SI N. 8. 4 47 3.<7 4 3 56.74 4.83059 9 31 4668 — 0 19.65 — 0 19.63 0.03 31 37.03 S 5 N. S. 5 34 9.63 4 50 55.98 4.79796 8 31 32.64 + 0 5.39 + 0 5.38 0.01 31 28.03 5 5 99 N. 8. 5 27 13 31 4 33 13.06 — 1.81096 9 31 46 78 — 1 16.51 — 1 16.42 0.09 30 30.27 3 2 1850.— Jan. 7 N. 8. 5 44 46.65 4 14 30.32 + 7. 17662 1 13 59. S6 + 10 18.1:9 + 10 18.17 0.72 23 18.75 2 2 8 N. 8. 5 59 5.13 4 34 40.54 8.18300 1 13 59.89 + 9 16.97 + 9 16.31 0.66 22 16.86 2 t 1 C. 5 13 4.80 334 51.85 9.14921 1 12 59.92 + 8 14.13 + 8 13.57 0.56 21 14 05 4 10 C. 5 18 14.70 3 36 4.99 10.15006 1 1259.95 + 7 11.63 + 7 11.14 0.49 30 11 58 4 11 N. B. 5 36 18.51 3 50 9.96 11.15984 1 12 59.98 + 6 6.18 + 6 5.74 0.42 19 6.14 2 2 13 N. 8. S 45 1 1 ..V 3 55 38.54 12. 16364 1 13 0.01 + 5 0.75 + 5 0.40 0.35 18 0.76 2 3 14 N. S. 5 33 37.05 3 35 41.1? 14.14978 1 13 0.06 + 3 54.74 + 254.54 0.30 15 54.80 3 3 15 X. B. 5 9 40.33 3 7 53.47 IS. 13047 1 13 0.09 + 1 53.88 — 1 52.75 0.13 14 52.97 3 3 18 N. 8. 5 42 26.16 3 36 37.03 16.15043 I 13 0.12 + 0 51.64 — 0 51.58 0.06 13 51.76 3 3 17 N. C. S. 5 13 34.03 3 3 53.70 +17.12770 1 +26 13 0.14 — 0 5.85 — 0 5.84 0.01 +36 12 51.29 3 1 3 clvi OBSERVATIONS. F.— OBSERVATIONS OF MARS I. WITH THE CAPE MURAL CIRCLE. To be corrected in the Memoirs R.A.8., vol. xx. P»ge 99, November 24, Observed Z. D., for 38". 62 nod 33". 62. 104, December 12, App. R. A., " 5A. 53m. •« 5*. 62m. 105, " 12, H. C. 11948 "68 39.65 "6 7 39.55 MARS I. Observations toith the Cape Mural Circle. Dtle. 1 >• - • ut Oipc 8.T. Wash. M T / T rth*M 7«n Tti.f • i , N 9 Comp. (, ^— j_ ^ 1 ' 1 1 - i ! /. . ; i . [ n - [ . Heir. Obt'd O. N. f. fcat fc A. m. *. 4 • / H / H • i n IMS—NOT. IB N. 8. 6 93 48.04 8 9 50.86 — 49.65983 S3 3 11.00 1 34.98 + 95 7 8.00 1 1 19 N. 8. « 93 8.14 8 5 15.17 41.66303 6 33.99 1 34.69 10 30.39 1 1 91 N. 8. f 91 36.84 7 55 53.30 39.66953 13 90.13 1 36.98 17 17.13 1 1 • N. 8. 751 5.18 38.67986 1649.76 1 34.74 90 46.76 1 1 94 N. 8. C 1851.51 7 41 19.69 * 36.67963 S3 19.85 1 35.63 97 16.85 1 1 9s N. 8. 7 36 93.43 35.68307 9658.97 1 37.66 30 55.97 1 1 87 N. 8. 6 15 35.71 7 96 16.69 33.69008 33 50.69 1 36.83 37 47.69 3 9 98 N.8. 6 14 93.48 7 91 8.75 33.69365 37 11.49 1 36.93 41 8.49 3 9 SB N. 8. 7 15 57.56 31.69735 40 30.51 1 35.49 44 97.51 1 9 30 N. 8. 6 11 49.4C 7 10 43.33 30.70089 43 43.13 1 38.37 47 40.13 1 9 Dw. 1 N. 8. 7 596.18 99.70458 46 55.53 1 38.91 SO 59.53 9 1 9 N. 8. 6 9 3.91 7 0 6.41 96.70836 SO 5.73 1 37.37 54 2.73 9 9 3 N. 8. 65443.73 97.71199 S3 7.80 1 35.98 57 4.80 1 1 4 N.8. 6 49 18.46 96.71576 5956 7.68 1 37.36 36 0 4.68 9 9 6 N. 8. 6 3890 74 94.73337 60 1 43.96 1 37.84 96 5 40.96 2 9 7 N. 8. « 39 48.70 . 33.72731 4 34.53 1 37.69 891.53 9 1 8 N. 8. 6 97 14.75 93.73108 6 56.08 1 37.61 10 53.08 9 9 9 N. 8. 6 91 39.33 91 .73496 9 21 .74 1 39.97 13 18.74 9 9 10 N. 8. 5 56 95.05 6 16 3.34 90.73886 11 34.70 1 38.77 15 31.70 9 9 11 N. 8. 5 54 43.00 6 10 33.65 18.74978 13 43.08 1 39.68 17 40.08 •J -j 19 N. 8. 5 5958 36 6 4 44.38 18.74671 15 41.78 1 40.14 1938.78 1 1 M N.B. 5 49 98.74 5 5333.59 16.75159 19 14.75 1 40.39 93 11.75 3 3 U N. 8. 5 47 43.14 5 47 43.39 15.75854 90 48 63 1 39.3V 94 45.63 3 9 16 N. 8. 5 45 57.60 543 1.19 14.76349 33 9.43 1 38.93 96 6.43 1 1 17 N. 8. 5 44 13.23 5 36 30.14 13.76643 2)96.56 1 39.03 97 33.56 9 9 18 N. 8. 5 43 97.16 5 3039.44 19.77038 94 35.64 1 39.48 98 99.64 9 9 90 N. 8. 5 38 59.39 5 1990.34 10.77894 96 339 1 40.96 30 0.39 1 1 91 N. 8. 5 37 16.80 5 13 43.30 9.78915 96 39.46 1 40.98 30 36.46 3 3 99 N. 8. 5 8 5.36 8.78605 97 6.13 1 40.09 31 3.13 9 9 93 N. 8. 5 33 55.59 5 9 99.71 7.78993 9793.56 1 39.98 31 90.56 9 9 94 N. 8. 5 39 17.64 4 56 55.95 6.79380 97 39.39 1 40.98 31 99.99 3 * 9t N.B. 5 99 7.91 4 45 54.38 4.80145 97 30.07 1 39.46 31 97.07 9 9 97 N.8. 497 35.16 4 40 96.67 3.80595 97 18.95 1 40 10 31 15.95 9 9 90 N. 8. 5 94 38.73 49938.90 — 1.81874 96 34.43 1 39.55 30 31.43 I 9 3! N. 8. 5 90 53.05 4 18 9.01 •f 0.17919 9596.70 1 40.63 99 33.70 9 3 18M._J»n. 3 N. 8. 5 18 5.97 4 3 36.96 3.16906 93 13.48 1 38.89 97 10.48 3 3 4 N.B. 5 16 55.66 3 5811.63 4.16553 9391.07 1 38.69 96 18.07 3 9 7 N.B. 5 1346.97 3 43 35.70 7.15510 1999.95 1 40.31 93 19.95 1 1 8 C. 5 19 50.86 3 38 33.88 8.15178 1891.93 1 39.47 39 18.93 4 1 C. 5 11 58.33 3 33 45.56 '.I.H-II 1799.09 1 39.51 91 19.09 1 10 C. 11 9.31 399 0.77 10. 14515 16 17.41 1 37.98 90 14.41 5 11 C. 10 93.91 2 94 19.58 11.14189 15 11.34 1 37.84 19 8.94 5 19 C. 9 43.99 3 19 49.08 19.13818 14 7.97 I 39.99 18 4.97 5 14 C. 899.71 y 10 37.95 14.13938 19 0.97 1 38.34 IS 57.97 5 15 C. 7 58.35 3 6 10.76 15.19999 10 58.99 1 38.01 14 55.99 4 16 C. 7 31.91 1 1 48.49 16.19691 • 57.81 1 38,36 13 54.81 5 17 C. 9 57 99. H + 17.19395 60 9 0.99 1 37.46 + 96 13 57.93 5 OBSERVATIONS. clvi a.— OBSERVATIONS OF MARS I. WITH THE CAMBRIDGE EQUATORIAL. A comparatively large number of observations of right-ascension only are given in the present volume ; as these however not only have no relation to the problem before us, but are incapable, under any circumstances, of furnishing a trustworthy value for the parallax, (s. Astronomical Journal, N°. 103,) they have not been critically examined. To the observations for declination the following corrections or modifications have been applied : — Page 453, November 15, 16. The "unknown star" is the comparison-star of the preceding day.— (Bessel Z. 348.) • 454, " 16,17. The comparisons were evidently with the south limb, not the north. 457,, December 17. Mean it, for 3' 34". 69 read 0' 34". 69. 458, " 27. The planet was tauth of Bessel Z. 405, not north. 458, " 29,30. There is some undetected error here.- 459, January 1. The comparisons are neither accordant with one another nor with the mean. The second series, upon reduction, gives A(5 = 0' 34". 10 — 0". 02 = 0' 34". 08 ; but even then the . difference between the north and south limb is nearly twice the diameter of the planet. The comparisons will, if used as follows, give nearly the average accordance with the Ephemeris : Mars, S. limb, N. of Bessel 405. Corr. Sid. time. Microm. Adopted zero. 460, 460, Chron. 1A. 54m. 40s. 8. 59s. 4. 1A. 53m. 41s. 4. and the values have been assumed. ' 5, results, line 1, Mean A<>, for V 45". 19 read 2' 4". 10. 3, " " 1 45 .01 " 2 4 .01 ' 5, " 3, Microm. " ST. 394 " 18r. 394 ' Micrometer Kev. Arc. Oorr. 53r.428. 50r. 034. 3r. 394 33". 26 —0. 02 33. 24 The Cambridge series will then be as follows : MA Us I. Observations with the Cambridge Equatorial. Date. Ota. part. Camb. 8.T. Wash. M.T. t-T. Star No. Star's d. Meas./),J. Refr. Obs'd §, N°. comp. N. 8. A. m. «. A. m. i. d. « / // f lt 0 i ii 1849.— NOT. 14 N. 8. 6 43 8.05 14 41 18.46 —46.38798 34 +34 57 13.56 —2 35.52 0".05 +24 54 37.99 3 4 IS N. 9 50 9.35 17 44 53.04 45.26050 30 25 1 46.63 —322.56 .08 58 23.99 1 8. 10 9 51.01 17 57 33.62 45.25171 34 34 57 13.53 + 54.36 .02 24 58 7.91 3 16 N. 8. 3 41 23.98 10 33 21.00 44.56017 30 25 1 46.60 —1 14.59 .04 25 0 31.97 4 4 8. 10 33 16.55 18 23 57.42 44.23408 30 1 46.60 — 18.07 .01 1 28.52 2 • N. 8. 3 21 13.46 10 53 35.41 39.54603 36 14 16.54 +3 8.46 .07 17 25.07 5 10 N. 8. 10 14 48.29 17 47 52.16 39.25842 38 14 16.54- +4 6.13 .11 18 22.78 5 6 96 a. 10 58 38.65 18 956.11 34.24310 32 35 14.71 + 11.95 .01 35 26.67 5 30 N. 8. 10 44 31.67 17 50 7.80 30.25685 30 25 45 36.56 +3 12.02 .10 25 48 48.68 1 6 Dec. 6 0. 11 50 59.75 18 33 42.54 34.23423 36 9 —2 1.51 .14 36 6 8 11 N. 8. 5521.97 7 9 19.60 19.70206 13 16 22.42 + 1 3.55 .04 17 26.01 5 3 19 N. 1 59 3.17 8 8 54.46 18.66048 19 + 3.00 00 19 1 17 N. 2 10 4.80 8 0 14.63 13.66650 11 26 39.63 + 34.67 .01 27 14.30 4 18 8. 3 4 49.77 8 50 54.81 12.63131 29 —I 6.52 .02 28 1 91 8. 9 36 14.38 8 10 36.38 9.65930 29 + 51.06 .02 30 5 97 N. 343 36.12 7 54 21.44 3.67058 8 31 23.67 — 18.41 .01 31 4.25 5 98 8. 1 44 1.50 6 51 0.67 2.71458 7 26 58.30 +3 35.28 .08 30 33.66 2 N. 8. 3 11 3.90 8 17 48.81 2.65430 7 26 58.30 +3 40.64 0.07 30 39.01 5 5 39 N. 19 17 13.70 17 18 33.22 — 1.37878 6 34 3.00 —3 51.91 1.45 30 8.64 4 31 8. « 4 1.98 1058 30.81 + 0.45730 5 27 39.52 +1 11.03 0.03 28 50.57 12 1856.— Jan. 1 8. 1 53 41.40 6 44 55.34 1.28120 5 27 39.56 + 33.94 .01 28 12.81 11 4 N. 1 46 58.82 6 26 38.13 4.26836 4 26 46.97 — 46.05 .02 26 0.90 4 5 N. 8. 4 44 31.07 9 19 33.38 5.38858 4 26 47.01 —1 55.41 .04 34 51.56 5 5 < 8. 1 35 31.77 C 7 9.13 6.25497 +26 21 +3 0.10 .07 96 23 7 10 8. 926 28.06 6 42 13.44 +10.27932 +3 33.80 0.07 7 OBSERVATIONS. H.— OBSERVATIONS OF MARS I. WITH THE ATHENS MERIDIAN-CIRCLE. The observations of Mars at Athens were made by Professor Bouris, then Director of the observatory at that place, for the special purpose of proving useful in connection with the labors of Lieut. Gilliss at Santiago, the meridian-circle being the only instrument at the observatory available for the purpose. A full description of the measurements and their results, together with an extended discussion, is given by Mr. Bouris in the Astronomische Nachrichten, vol. XXXVII, pp'. 153-188. On only four nights was the observation of /9 Tauri omitted ; and, in general, the choice of other stars was guided by the programme of Jfars-culminating stars in the London Nautical Almanac for Is49. The readings of thealhidade-level and the correc- tions for refraction computed in triplicate by Mr. Bouris are there given, and after such pains- taking zeal on his part, it has seemed superfluous to renew any part of the computation. I have consequently adopted the values of the correction for refraction as given by this astronomer. The only typographical errors to be noticed are : Page 165, NOT. 26 Dec. 14 167, Jan. 2 " 3 " 6 168, 6 169, IS 5 Gcminornin, Circle-reading, for 346O 30' 44".63, read 346° 29'44".63. 1937 B.A C., Level, for 2".08, nod 2".80. for 1648 Hist. C61., rwi 4 TT name. N°. Obs. Sum. N°. Obs. Sum. A. B. a B. A. C. 1648 . 1 11.2 2- 80 3 11.20 40.15 28.95 b 0 Tauri . . . 17 217.9 17 680.3 12.82 40.02 27.20 e 118 Tauri . . 6 62.3 5 192.6 10.38 38.52 28.14 d B. A. C. 1754 . 7 96.2 7 279.2 13.74 39.89 26.15 e 125 Tauri . . 1 12.3 3 115.2 12.30 38.40 26.10 / B. A. 0. 1937 . 14 192.0 13 538.1 13.71 41.24 27.58 e 5 Qeminonim . 2 25.7 2 85.6 12.86 42.78 29.92 i B. A. C. 1562 . 7 94.7 6 243.7 13.53 40.62 27.09 9 Lai. 10669 . . 8 87.6 6 236.8 10.95 37.80 26.85 10 Lai. 11108 . . 9 124.9 8 330.5 13.88 41.31 27.43 13 139 Tauri . . 2 34.4 3 117.4 12.20 39.13 26.93 IS Lil. 11684 . . 1 13.1 12.07 17 Lai. 11854 . . 1 37.2 37.22 18 Lai. 11946 . . 1 42.7 42.71 21 B. A. C. 2058 . 1 11.9 11.91 7 25 Lai. 12336 . . 1 13.3 1 39.2 13.15 39.23 27.08 35 < Geminorum . 1 11.9 1 39.6 11.91 39.56 27.65 Sum . 78 997.3 76 3046.4 12.785 40.084 27.299 The thread A has been taken as the standard, and all the circle-readings corresponding to observations with B, are reduced by subtracting the assumed distance between the two threads. The observations on the successive days hardly permit any trustworthy inferences regarding the fluctuations of the zenith-point, but show the nonexistence of any progressive change. They are here given in full detail in the table of circle-readings. In this table all the observations of each star are grouped together ; the columns headed Level and Refraction being taken directly from Professor Bouris's paper. The apparent decli- nations of the stars observed have been deduced from the list of mean places and constants for reduction to the apparent equinox, given at the close of the preceding division of this article. The ninth column, headed Zero of circle, gives the declination corresponding to the circle- reading 0°, or, in other words, the distance of the equator-point for the thread A from the zero of graduation, as indicated by each observation. clx OBSERVATIONS. Circle-readings of Stars observed at Athens in connexion toith Mars I. Wo NUM. Due. Circle. Lenl. Refraction. Corr'd reading . Bur-i 8. Zero of circle. 1 /JT.OU ISO.— Nor. 33 • t H 350 31 94.00 H —4.16 ti —9.57 • / // 350 31 10.97 • t it +38 98 99.3 • i n 37 57 13.0 • 30 58.00 4.94 9.69 30 44.14 99.4 11.0 as 3059.63 9.94 9.41 3040.98 99.5 14.9 • 31 90.75 1.44 9.98 31 10.03 99.5 19.5 • 31 91.88 1.36 9.51 31 11.01 39.6 11.6 • 30 50.75 0.08 9.67 30 41.00 • c. 14.3 10 31 18.50 0.40 9.66 31 8.44 29.7 14.3 Dee. 4 31 93.00 4.08 9.66 31 9.96 99.9 13.6 9 30 56.38 1.59 9.71 90 45.15 93.1 10.7 14 31 94.63 9.08 9.77 31 12.78 93.3 10.4 U 3056.13 1.98 9.84 30 45.01 93.3 11 .0' 1C 31 93.88 9.08 9.73 31 19.07 93.4 11.3 17 3051.63 0.94 9.69 30 41.70 93.4 14.4 19 30 56.88 1.59 9.64 30 45.79 93.5 10.5 91 3058.95 9.64 9.59 3046.09 33.6 10.3 • 31 99.13 -0.48 9.64 31 12.01 33.7 11.7 83 3059.50 + 1*04 9.57 30 43.97 93.7 19.4 M 31 90.50 -0.40 9.53 31 10.57 93.8 13.3 H 31 91.13 1.76 9.46 31 9.91 94.0 13.1 • 30 53.00 1.44 9.49 30 49.07 94.0 14.6 1850—J»n. 1 3053.38 -1.60 9.58 30 49.90 94.1 14.6 8 31 18.95 0.00 9.67 31 8.58 94.5 15.9 10 31 19.95 +1.99 9.69 31 11.55 94.6 13.0 IS 30 53.63 —0.08 9.74 30 43.81 94.8 13.7 19 3056.00 —1.99 9.54 30 44.54 94.9 13.1 H 31 90.95 +0.94 9.80 31 1C. 69 35.3 14.5 97 3051.50 9.94 9.49 30 44.95 35.8 13.6 99 3054.38 1.04 9.87 30 45.55 95.3 19.4 F.i-.' .--• .- AMI. m. i t ^^ * . No 8l*r'» O, Mrafl a ±s\j In If UM a u. N. 8. A. m. .. k. m. l. t, • / a t it / • / n I851.-DM. 16 N. g. 74343.78 13 39 38.94 — 49.43989 ID- + 194949.18 + I 39.3 0.09 + 19 44 94.98 10 10 N.S. 846 11.00 14 38 99.94 49.38964 ll' 1.' I'.'.! + 1 41.83 .08 44 31.09 1 9 U N. 8. 7 31 4.99 13 19 13.04 49.44989 108 19 59 9.6- + 1 58.08 .11 94 7.88 10 10 N.8. 8 14 38.40 13 99 38.09 , 49.41970 IOC 99 9.67 + 9 4.99 .09 54 14.79 9 5 N.B. 8 SB 0.67 14 19 98.39 49.40280 106 59 9.67 + 9 8.78 .10 94 18.59 3 3 90 8. 7 47 29.09 13 94 39.3 41.4413 108 90 999.99 — 4 36.93 .93 57 46.49 90 91 8. 7 43 58.93 13 16 7.99 40.4471 108 999.89 — 37.87 .04 90 1 44.94 39 • 8. 7 37 43.55 13 7 3.59 39.45343 108 •j -_>-j n + 333.94 .18 5 96.87 97 94 8. 8 7 51.50 13 99 14.73 37.43809 107 90 1531.50 — 94.59 .09 19 6.96 39 • 8. 8 957.49 13 97 94.49 38.4393U 107 15 31.40 + 499.10 .91 90 0.79 90 98 8. 7 98 47. 16 19 49 94.98 35.47054 105 90 97 49.57 — 9 46.93 .15 94 95.49 94 8. 8 33 96.91 13 46 94.9 35.4361 105 97 49.97 - 9 33.17 .19 95 9.98 8 97 8. 7 44 37.99 1994 16.90 34.46930 105 97 49 48 + 933.46 .16 30 16.10 98 98 N.B. 7 58 48.63 13 4 99.70 33.45531 109 90 37 39.96 — 1 37.74 .08 35 57.74 91 90 98 N. 8. 731 4.18 19 33 93.71 38.47646 104 9041 6.08 + 97.65 .09 41 33.75 9 9 30 N. 8. 7 36 7.89 19 34 0.78 31.47638 104 41 9.99 + 699.80 .33 47 99.19 10 10 31 N. 8. 7 30 6.94 1994 4.98 30.48396 99 90 57 18.15 — 3 47.76 .90 93 30.19 13 14 1859— JM. 1 N.S. 7 93 90.98 19 43 48.59 99.46958 100 31 1 43.43 — 1 53.61 .09 59 49.73 15 19 9 N.B. 7 33 31.90 19 19 36.88 98.48638 97 91 6 19.49 — 14.91 .01 91 6 4.50 16 16 4 N.S. 733 9.06 19 10 93. 15 96.49979 101 91 16 47.63 + 930.43 .13 19 18.19 8 8 9 N. 8. 7 44 93.75 19 18 38.89 99.48704 98 91 99 17.99 - 3 19.97 .17 96 5.51 10 10 6 N.8. 79890.19 19 3838.13 94.48011 96 91 34 4.77 — 1 0.44 .09 33 4.38 8 8 7 N.B. 7 47 37.47 13 14 1.99 93.49098 94 91 44 9.31 — 4 11.03 .99 39 58.06 8 8 8 N.8. 6 54 13.74 11 18 50.36 93.59997 94 44 9.97 + 9 37.78 .16 46 47.21 5 5 N. 8. 8 697.48 19 9999.17 99.47960 94 44 9.27 + 3 0.33 .19 47 19.74 6 6 I N.S. 7 49 97.41 19 1 0.99 91.49930 93 91 94 53.86 - 44.06 .04 54 9.76 10 10 10 N.8. 7 46 36.53 19 1 19.73 90.49918 95 99 995.94 — 1 1.81 .05 99 1 33.38 93 93 11 N.fl. 8 18 16.09 199851.13 10.47996 99 99 8 43.09 + 3.49 .00 8 46.47 5 5 19 N.B. 7 9391.19 11 99 9.49 18.99143 91 912 15 19.36 + 33.94 .03 15 45.33 19 19 N.8. 895 0.97 19 31 38.38 18 47803 91 15 19.36 + 53.44 .04 16 4.84 3 3 13 N.8. e a 30.77 19 5 16.69 17.49634 90 9999 40.79 + 31.41 .09 33 19.23 19 19 U N. 8. 7 46 39.03 11 49 31.59 16.91005 88 993399.59 - 3 9.76 .17 30 19.66 18 18 18 N.8. 7 33 33.61 11 93 36.66 14.59938 87 29 44 37.90 + 3.17 .00 44 40.07 19 19 17 N.S. 7 99 19.90 11 9 98.31 13.53509 89 99 51 33.75 + 9.29 .01 51 43.05 8 8 90 N.8. 79598.33 U 0 48.90 10.94110 89 93 14 97.45 — I 95.38 .10 93 19 31.97 18 18 N.B. 84098.43 19 16 6.63 10.48881 85 14 97.49 — 1 S3.75 .08 19 53.69 13 19 91 N. 8. 6 99 36.99 10 31 9.19 :i .ViM • 93 16 7.63 + 9 57.41 .18 19 9.99 9 9 93 N.S. 8 9 10.39 11 38 31.91 8.51630 80 33 94 17.31 + 1 44.78 .10 96 3.19 13 13 93 N.8. 8 999.84 11 99 56.41 7.5-2385 78 93 34 13.08 — 1 49.30 .11 3293.67 13 13 94 N.B. 8 9 48.04 11 99 18.89 6.90617 79 93 4933.88 — 6 94.67 .39 38 38.83 23 33 99 N.B. 7 18 51.17 10 34 40.35 9.55996 79 49 33.89 — 99.91 .06 44 33.99 17 17 97 N.S. 73450.69 10 49 38.31 3.55379 77 9398 1.45 — 1 91.71 .11 96 9.63 15 19 98 N.S. 7 94 14.57 1098 3.14 9.54309 69 94 1 98.11 + 16.61 .01 94 1 44.73 9 9 99 N.S. 8 341.99 11 333.11 1.53990 73 94 5 97.00 + 3 53.89 .16 890.98 19 90 30 N.B. 811 9.11 11 658.11 - 0.93669 71 94 9 36.65 -f 999.84 .14 19 6.63 95 39 31 N.8. 8 6 37.79 10 58 36.54 + 0.45737 79 94 19 39.98 — 9 45.00 .16 16 94.19 13 13 Feb. 1 N.B. 7 14 13.48 10 9 94.97 1.41835 68 34 99 1.59 -3 43.99 .99 91 18.08 14 14 9 N.B. 8 6 34.80 10 50 41.81 9.45187 68 95 1.69 + 46.54 .04 95 48.90 19 15 3 N.B. 8 39 55.75 11 16 9.03 3.46947 66 34 99 18.89 + 38.96 .04 99 57.49 15 15 7 N.B. 7 35 97.43 10 0 0.00 7.41867 69 94 46 58.88 — 3 14.17 .19 43 49.59 13 13 8 N.B. 7 13 9.69 9 33 49.96 8.39890 69 46 58.93 — 93 93 .09 46 33.69 14 15 • N.B. 7 10 7.96 9 96 59.89 9.39367 69 46 58.98 + 3 13.89 .13 49 10.96 8 8 N.B. 84993.88 11 6 99.40 I.4MN 69 4656.98 + 3 94.93 .14 4991.64 3 10 N.B. 7 39 48.89 9 99 33.01 10.41149 60 94 59 38.76 — 1 1.91 .06 51 36.79 9 11 N.B. 7 31 1.54 9 39 91.19 11.40968 60 5938.81 + 1 6.43 .06 5345.30 1 N.B. 849 9.37 10 53 49.88 11.45397 60 59 38.81 + 1 13.55 .07 53 51.43 4 11 N.B. 799 19.17 9 30 10.30 13.39995 98 94 99 7.33 + 9 19.03 .13 57 19.49 3 N.B. 8 37 19.00 10 37 9».M 13.44304 58 59 7.33 + 9 16.84 .14 57 94.31 9 U N.B. 8 46 5.47 9 43 4.99 14.40499 57 99 0 18.13 — 1 31.90 .09 98 46.14 9 U N.B. 7 0 17.45 8 5398.49 + 15.37047 97 0 18.19 — 21.13 0.09 99 97.04 9 OBSERVATIONS Observations with the Santiago Equatorial — Continued. clxis Date. Ob*, part. Santiago S.T. Wash. M.T. t—T. Star No. Star's d. Meas'd Dd. Refr. Obs'd 0. No. com p. N. S. A. m. s. A. m. s. d. o 1 II i it ., 0 ( // 1852.-Feb. 16 N. 8. 7 28 12.88 9 17 23.45 + 16.38708 57 + 25 0 1«*25 + 40.50 0.04 +25 0 58.79 15 15 17 N.8. 7 30 24.80 9 15 39.10 17.38587 57 0 18.34 + 1 27.86 08 1 46.28 24 24 19 N. 8. 7 12 56.96 8 50 22.30 19.36831 "57 0 18.42 + 2 24.88 14 2 43.44 8 9 20 N.S. 7 16 43.08 8 50 11 90 20.36819 57 0 18.48 + 2 34.31 15 2 52.94 15 15 21 N.S. 729 1.81 8 58 32.70 21.373SJ9 57 0 18.54 + 2 32.24 15 2 50.93 13 13 23 N. 8. 7 7 11.29 8 32 49.85 22.35613 57 0 18.60 + 2 18.88 14 2 37.62 4 4 23 N. S. 7 3 42.05 8 25 25.27 23.35099 57 0 18.66 •f 1 54.74 11 2 13.51 11 11 24 N.S. 7 1 40.35 8 19 28.00 24.34685 57 0 18.73 + 1 19.14 07 1 37.94 11 11 25 N.S. 7 9 5.18 8 22 55.71 •25 34926 49 25 3 0.69 — 2 9.91 13 0 50.65 12 12 26 N. 8. 7 11 52.74 8 21 46.00 26.31846 49 3 0.75 — 3 6.59 19 24 59 53.97 12 12 27 N.S. 837 18.13 9 33 4.03 27.39786 49 3 0.81 — 4 14.55 25 58 46.01 9 9 28 N. 8. 6 51 42.57 7 53 48.23 28.32903 59 24 51 9.36 + 3 24.85 21 57 34.42 7 7 N.S. 8 11 24.86 9 13 17.46 28.38433 53 54 9.36 + 3 21.31 20 57 30.87 6 6 29 N.S. 6 44 2.27 7 42 13.28 29.32099 52 54 9.41 + 2 1.07 12 56 10.60 6 6 Mar. 1 N.S. 6 59 13.51 7 5326.12 30.32S77 52 24 54 9.47 + 25. 5T 03 24 54 35.07 19 19 9 N. 8. 7 15 4.17 8 5 18.28 31.33702 52 54 9.53 — 1 18.96, 08 52 50.49 30 30 3 N.S. 6 50 12.48 7 3B 34.76 32.31707 52 54 9.59 — 3 9.31 20 51 0.08 13 13 4 N.S. 7 1935.94 8 1 S7.4» 33.334u9 47 24 44 49.15 + 4 11.93 25 49 1.33 11 11 6 N.S. 7 36 48.15 8 11 15.07 33.34115 47 44 49.29 — 14.70 01 44 34.58 12 12 7 N.S. 7 16 20.97 7 46 55.33 36^32455 48 24 36 47.11 + 5 25.77 33 42 14.21 7 7 8 N.S. 7 24 47.03 7 51 24.10 37.32736 48 36 47.17 + 2 53.80 18 39 41.15 12 12 1 N.S. 7 1C 54.31 7 39 36.77 38.31918 48 36 47.23 + 15.72 01 37 2.96 9 10 10 N.S. C 57 38.52 7 16 28.23 39.30310 48 36 47.30 — 2 29.44 16 34 17.70 4 5 11 N.S. 7 99 36.35 7 44 24.91 40.32251 54 242825.88 + 2 59.86 18 31 25.92 14 14 19 N.B. 6 45 13.66 6 56 13.50 41.28905 54 2825.94 + 4.03 00 28 29.97 5 5 N.S. 7 40 30.81 7 51 21.68 41.327J4 54 28 25.94 — 3.12 00 28 22.82 15 13 13 N.S. 7 21 1.07 7 27 59.23 4i. 31110 54 28 26.00 — 3 7.92 18 25 17.90 15 15 14 N.S. 7 31 37.04 7 34 37.76 43.31572 55 94 18 57.55 + 3 5.51 18 22 3.24 13 13 IS M.S. 7 31 94.00 7 30 98.64 + 44.312M3 55 18 57.61 — 15.96 0.01 18 41.64 20 20 B.— OBSERVATIONS OF MARS II. WITH THE SANTIAGO MERIDIAN-CIRCLE. The only remarks needed, relative to this series, are these : Page 309, note k, for V 21': 30 read 1' 21". 27. 311, the observation N°. 7 has not been used. 312, Jan. 28. For 24° 28' 5fi".97 rend 24° 28' 63".97. 312, Feb 1. The sign of Nadir-reading should be positive. 313, note I. The star is measured from Bessel 341. 314, /and g. Keference-letters should be transposed. 318, Mar. 23. For 24° 33' 35".04 read 22° 33' 35".04. The observations in this series are of two classes : the first, consisting of microscope-readings after setting the fixed thread upon the limb of the planet ; the second, of micrometric differences from some near star. The latter cases are indicated in the foot-notes. This second class of observations has been treated like the micrometric measurements ; with the equatorial and the measured differences applied to the star-place, not as it was observed on that day, but as de- rived from our General Catalogue. This being kept in view, we deduce the appended table, in which the semi-diameter is not applied ; inasmuch as this is derived from computation, and incorporated in the computed place of the observed limb. clxx OBSEBVATK • 4J.W 9 55 40.31 34 58 59.61 14.413661 IS N 7 57 41.71 9 50 43.35 95 0 8.58 15.410994 10 8. 756 44.76 9 4950.65 95 054.68 16.408838 17 N. 7 55 49 07 9 40 59.91 95 1 54.75 17.403463 18 - 7 54 56.40 9 38 19.77 IT. 2 14.55 301 39 41.33 1 97.67 6.0 18.400148 » N. 7 M 10.46 9 31 99.05 95 9 53.21 301 33 3.75 1 98.45 3.5 19.396866 90 8. 7 53 95.31 998 48.13 95 9 47.09 301 33 10.33 1 96.91 9.9 90.393619 •1 X. 759 43.lt 999 10.13 95 9 58.01 301 31 54.95 1 95.95 6.4 91.390395 • !». 4.S4 9 17 33.05 95 9 4.1 SKI' 301 33 13.43 1 95.91 8.7 99.387999 13 Jf. 7 51 30.67 9 13 6,08 2i 2 17 98 301 33 38.19 1 98.57 4.8 93.384098 94 8. 7 51 0.53 9 8 40.10 +9S 1 91.96 301 3396.80 —1 95.65 +4.7 +SM.361090 OBSERVATIONS. Observations with the Santiago Meridian-Circle — Continued. clxxi Date. Limb. Sant. S.T. Wash. M.T. Obs'd S. Circle-reading. Refr. Nadir. t-T. A. •». t. A. m. s. • d. 1852.— Feb. 25 N. 7 50 31.85 9 4 15.59 +25 1 0.09 301 33 57.43 —1 25.91 +4.5 +25.377959 26 8. 7 50 8.43 8 59 56.32 24 59 47.53 26.374957 27 N. 7 49 46.66 8 55 38.71 24 58 54.77 27.371975 2tf S. 7 49 30.26 8 51 26.45 24 57 24.56 301 37 30.67 1 26.32 5.2 28.369056 29 N. 7 49 14.81 8 47 15.13 24 56 21.08 29.366147 Mar. 1 N. 7 49 4.99 8 43 9.43 24 54 23.73 30.363303 2 N. 7 48 56.85 8 39 5.41 24 53 1.57 31.360479 3 N. 7 48 52.42 8 35 5.08 24 51 5.69 32.357697 4 N. 7 48 51.23 8 31 7.98 24 49 4.51 301 45 49.02 1 34.72 5.3 33.354954 6 N. 7 48 57.93 8 23 22.66 24 44 41 .48 35.349570 7 S. 7 49 7.03 8 19 36 02 24 42 1.37 301 52 52.30 1 25.06 5.5 36.346944 8 N. 7 49 17.47 8 15 50.53 24 39 45.78 37.344334 9 8. 7 49 32.18 8 12 9 29 24 36 54.23 38.341774 10 N. 7 49 48.37 8 8 29.53 24 34 17.74 39.339231 11 8. 7 50 8.58 8 4 53.77 24 31 14.36 302 3 39.88 1 24.63 4.5 40.336734 12 N. 7 50 30.59 8 1 19.98 24 28 27.80 302 6 25.75 } 23.84 4.4 41.334258 13 S. 7 50 56.74 7 57 50.14 24 25 8.82 302 9 44.50 '\ 23.21 4.0 42.331830 14 N. 7 51 24.03 7 54 21.31 24 22 5.66 302 12 48.12 1 23.17 3.5 43.329414 15 H. 7 51 55.24 7 50 56.52 +24 18 32.73 302 16 20.58 —1 24.00 +4.8 +44.327043 C.— OBSERVATIONS OF MARS II. WITH THE WASHINGTON EQUATORIAL. The corrections applied are — Page 379, January 24, No. 4, 381, " 26, " 21, SOB. 21 to 36, 383, February 2, No. 32, 384, " 3, " 10, Results 385, " 3, line 1, 2, We have then the observations — for 9h. 48m. 24».67 22r. 244 9 2r. 365 IT. 152 Ir. 244 19". 12 read 9A. 45m. 24».67. 22r. 239 10 2r. 373 Ir. 132 \r. 242 19". 09 MARS II. Observations with the Washington Equatorial. Date. Obs. pan. WMh. S.T. Wash. M.T. / T Star No. Star's d. Meas. D S, Refr. Obs'd 8. No. comp. N. g. A. m. >. A. m. s. d. o / // i n n 0 I II 1852.— Jan. 24 N. 8. 6 25 40.24 10 11 16.02 —6.57551 79 +23 45 33.87 —7 2S.50 0.13 +23 38 8.24 5 7 26 N. 8. 6 22 36.53 10 0 21.00 4.58309 23 44 +5 46.98 .10 9 9 30 N. 8. 7 27 24.70 10 49 14.91 —0.54913 24 12 — 40.22 .01 4 4 Feb. 2 N. S. 63651.43 947 2.20 +2.40766 68 24 25 1.62 + 20.73 .00 24 25 22.35 8 8 3 N. S. 6 42 46.55 9 49 0.43 +3.40903 64 +24 28 59.71 + 28.87 0.01 +24 29 28.59 9 9 «.lxxii OBSERVATIONS. The Greenwich volunu-s for 1851-52 give us — D.— OBSERVATIONS OF MARS II. WITH THE GREENWICH TRANSIT-CIRCLE. MARS II. Observations tcith (he Greenwich Transit- Circle. D.*. Limb. Green. 8.T. Wa»b. M.T. t-T. Circle- rndinf. n.-r,. y.i tilth corr. ' Olxerved d. + v *. *. t. A. BI. i. t. t< • n • I n 1851.— Off. » N. 8. 9 8 3.89 10 50 39.9 — 63.54816 51.00 37.40 ;•• • + 19 38 88.90 C. 9 6 37.11 9 3d 16.3 35.59849 6.78 37.17 46.83 30 94 8.44 1S59.— Jan. 5 N. 8. 8 57 47.05 8 50 £0.3 35.63171 38.33 34.49 47.34 31 34 50.13 7 O. 835-28.63 8 40 6.7 33.63881 36.19 34.03 47.34 31 38 40.67 9 N. B. 85954.36 8 39 43.0 31.64003 97.93 33.56 47.34 91 59 49.40 • ' N. S. 8 36 17.33 7 S953.6 10.68757 33.34 31.73 46.55 33 11 16.60 • N. 8. 8 33 57.69 7 18 43.7 8.69534 46.70 30.90 46.55 3394 34.06 93 N. 8. 8 31 17.19 7 13 6.6 i.esKxa 30.53 31.58 46.55 33 30 56.34 98 8. 8 9954.93 645 6.9 "• 9.7I8C8 59.53 31.11 46.55 24 099.19 • N. 8. 8 91 15.98 6 3931.6 1.7S355 33.06 3U.63 46.55 34 5 47.97 30 N. 8. 8 1938.16 6 3318.1 - 0.73641 38.31 30 79 46.55 94 10 53.13 Feb. 3 N. 8. 8 13 19.73 6 11 57.1 + 3.35KX) 30.38 30.97 48.80 34 98 50. 86 6 N. 8. 8 854.50 5 55 44.8 6.94705 34. (13 30.11 46.80 94 39 47.97 9 N. 8. 8 4 49.93 53951.3 9.93603 50.84 39.57 46.80 344831.00 10 N. 8. 8 333.49 5 34 41.0 10.23249 •Jo. 12 30.06 46.80 34 50 56.33 11 N. 8. 8 9 19.95 53931.8 11.99884 13.39 30.38 46.80 34 53 7.76 || N. 8. 7 6856.03 5 14 30.6 14.31899 34.34 30.08 46.80 34 58 17.09 18 N. 8. 7 55 7.63 4 64 49.4 18.90474 33.60 39.39 46.87 35 1 59.34 N. 8. 7 53 33.79 4 4693.8 90.19189 43.18 30.16 46.87 35 937.99 • C. 7 50 19.78 4 18 37.9 96.17949 98.75 30.01 46.87 34 59 53.57 98 N. 8. 7 49 33.01 4 9 56.5 98.17357 48.03 39.36 46.87 34 57 33.96 Urn. N. 8. 7 4858.30 3 £7 34.7 31.16498 95.37 39.83 46.45 84 63 56.67 N. 8. 7 4853.68 3 53 33.3 33.16319 14.94 30.38 46.45 34 51 6.44 N. 8. 7 4851.63 3 49 35.9 33.15944 11.51 30.90 46.45 34 49 9.35 C. 74853.95 3 45 41.0 :il.l.MiV.> 18.88 31.15 46.45 34 47 1.73 t. N. 7 48 57.56 3 41 49.7 35.15404 31. 83 31.00 46.45 34 44 48.94 C. 7 49 15.49 3 34 1.1.8 37.14819 34.X 30.53 46.45 34 39 56.88 C. 7 49 38.56 3 30 33.9 38.14631 3.56 30.43 46.45 34 37 18.77 19 C. 7 5096.41 3 19 49.9 41.13869 37.13 30.76 46.45 34 38 43.88 II C. 7 5857.11 3 3 33.6 46.18678 13.97 31.08 45.59 34 13 7.64 18 C. 7 53 35.12 9 59 15.6 47.13449 51.74 30.88 45.53 94 8 30.07 80 C. 7 54 58.09 3 59 46.6 49.11998 30.03 30.96 45.53 94 0 51.70 • C. 7 66 30.91 9 4697.3 51. 11659 34.03 30.45 45.59 33 69 48.33 33 C. 7 57 30.60 9 4331.0 52.11844 46.67 30.97 45.59 33 48 38.75 • C. 7 59 6.09 9 37 14.9 64.10930 33.69 31.36 45.59 33 39 57.65 17 C. 8 1 1.12 9 31 17.3 + 66.10406 98.13 31.91 45.59 +33 30 53.35 OBSERVATIONS. clxxiii From the Memoirs of the Royal Astronomical Society, volume XXL, we have — E.— OBSERVATIONS OF MARS II. WITH THE CAPE MURAL-CIRCLE. MARS II. Observations with the Cape Mural-Circle. Date. Assumed Cape 8. T Wash. M. T. t—T. Cilclc-reading. Zenith point. Kefr. Observed d. ° i 33 57 A.m. i. A. m. >. d. ° / // // / // 0 / // 1851— Dec. 22 9 8 22.3 8 42 11.8 — 39.63736 339 56 59.41 0.53 1 18.89 +20 5 17.01 36 9 6 28 6 24 34.9 35.64960 38 7.14 0.95 1 19.14 20 24 9.95 £9 9 4 27.9 10 46.7 32.65918 21 45.96 1.68 1 19.77 20 40 32.49 30 9 3 40.9 8 6 4.0 31 .66245 15 53.11 0.81 1 17.89 20 46 22.59 1858— Jan. 1 9 1 57.1 7 56 28.6 29.66911 3 44.37 1.52 1 20.38 SiO 58 34.53 9 9 1 0.4 51 36.2 28.67250 338 57 24.82 1.55 1 21.69 21 4 55.42 3 9004 46 40.4 27.67592 50 53.50 1.61 1 21.28 21 11 26.39 5 8 57 51.3 36 39.8 25.68287 37 31.89 2.33 1 21.64 21 24 49.08 9 8 52 58.0 16 3.7 21.69718 9 34.69 3.74 1 22.67 21 52 48.72 10 8si 33. u 10 48.0 20.70083 2 25.47 3.42 / 1 24.46 2.1 59 59.41 lit 8 48 50.4 7 0 9.0 18.70823 337 47 58.55 3.44 1 23.74 22 14 25.63 13 8 47 23.1 6 54 46.1 17.71197 40 45.75 3.63 1 24.82 22 21 39.70 14 8 45 53.7 4921.0 16.71573 33 33.38 4.30 1 26.05 93 28 53.97 IS 8 44 23.4 43 54.0 15.71951 26 19.33 4.14 1 25.65 22 36 7.46 16 8 43 49.3 3825.3 14.72332 19 10.04 4.53 1 26.05 22 43 17.54 H 8 38 0.9 21 49.9 11.73484 336 58 5.41 5.70 1 26.66 23 4 23.95 20 83693.3 16 15.7 10.73871 51 14.37 6.23 1 26.15 23 11 15.00 21 834 43.9 10 40.7 9.74258 44 33.34 5.81 1 27.65 23 17 57.12 23 8 33 2.8 6 5 4.9 8.74647 37 58.39 6.57 1 28.64 23 24 33.82 • 8 31 83.4 5 59 28.9 7.75036 31 32.15 6.97 1 28.85 23 31 0.67 24 8 29 41.6 5352.4 6.75426 35 15.26 7.11 1 29.03 23 37 17.88 35 826 20.1 42 39.7 4.76204 13 16.18 8.35 1 29.44 23 49 18.61 27 834 39.7 37 3.7 3.76593 7 32.14 8.80 1 29.28 23 55 2.94 129 831 91.0 25 53.6 — 1.77369 335 56 45.56 9.37 1 30.81 24 5 51.62 Feb. 2 8 14 56. 7 5 3 46.8 + 2.21096 37 49.78 10.87 1 31.02 24 24 49.11 3 8 1324.3 4 58 18.8 3.20716 33 42.08 10.79 1 31.03 24 28 56.74 4 8 11 53.7 52 42.5 4.20339 99 48.86 10.92 1 31.93 24 32 50.99 5 8 10 25.3 47 22. 3 5.19963 26 9.79 11.58 1 31.98 24 36 30.84 6 8 8 58.8 42 6.2 6.19591 93 46.33 12.01 1 32.56 24 39 55.24 7 8 7 34.7 36 46.4 7.19220 19 36.67 12.26 I 3!!. 66 24 43 5.35 9 8 4 53.7 96 14.0 9.184(8 14 0.14 13.50 1 31.85 24 48 42.21 10 8 3 37.1 21 1.8 10.18127 11 35.68 14.59 1 32.35 24 51 8.26 11 8 223.2 15 52.8 11.17769 9 24.94 15.03 1 33.14 24 53 20.23 12 8 1 12.3 10 45.5 12.17414 7 28.28 15.29 1 33.54 24 55 16.57 13 8 0 4.1 5 41.6 13.17062 5 46.73 15.62 1 33.05 24 56 58.94 14 7 58 58.9 4 0 40.7 14.16714 4 17.26 16.31 1 32.79 24 58 28.84 16 758 58.9 3 50 48.5 16.16028 1 59.29 16.95 1 33.97 25 0 48.63 17 766 2.6 4557.1 17.15691 1 7.70 17.30 1 32.63 25 1 39.23 18 7 55 10.3 41 9.1 18.15358 0 31.85 18.35 1 32.32 25 2 15.82 19 7 54 21.3 36 24.3 19.15028 0 8.56 18.67 1 33.51 35 3 40.62 20 7 5335.7 31 43.9 90.1470* 334 59 54.55 18.96 1 32.91 35 254.32 21 7 52 53.5 27 4.9 31.14381 59 56.21 19.68 1 31.79 25 2 52.26 . 23 7 51 39.3 17 59.1 93.13749 335 029.46 19.57 1 31.44 95 221.55 24 7 51 7.2 13 31.2 94.13439 1 1.64 20.58 1 33.03 25 1 48.97 85 7 50 38.7 3 9 6.9 25.13133 1 43.09 21.55 1 29.93 25 1 5.38 28 7 49 33.6 9 56 14.2 +98. 12239 4 58.80 21.87 1 34.39 +24 57 54.46 OBSERVATIONS. And finally, from the Astronomischc NachricfUen, ^"-833 — F.— OBSERVATIONS OF MARS II. WITH THE KREMSMONSTER MERIDIAN- CIRCLE. MARS II. Observations with the Kremsmiinster Meridian-Ciide. DM. Knmn. M. T. W»b. M. T. ML-.H..: // Obwmdd. «— T. *. m.i. ». m. t. A. m. >. • t a t. 189A-JU. 90 19 38 18.81 6 33 34.31 8 36 19.84 + 93 11 8.64 — 10.798686 M 19 15 45.81 6 11 10.61 8 M 38.85 93 37 9.92 - 6.749938 Pub. 8 10 S3 33.34 4 48 47.74 8 6 10.79 94 45 49.51 + 8.900553 t 10 48 17.33 4 43 31.73 8 4 51.53 -.•! i- HUM 9.196907 1 10 10 43 4.83 43890.33 8 3 3-1.96 94 50 55.64 10.193991 94 • 35 34.89 3 3050.99 7 51 5.85 95 1 34.31 94.146415 as 8 31 10.78 3 96 96.18 7 SO 37.38 35 0 S4.03 95.143358 M 9 36 50.46 399 5.86 7 SO 19.33 94 58 55.86 •8.14034.', Mir. « 8 SO 10.50 94595.90 74856.04 34 44 58.97 35.114883 7 8 4692.11 9 41 37.il . 7 49 3.43 34 43 37.95 36.119939 8 84936.93 9 37 51 .68 7 49 13.80 84 40 3.S4 37.109695 14 891 3.15 9 16 18.55 7 51 16.54 94 92 40.59 43.096659 M 8 14 13.99 9 999.39 7 59 19.33 94 15 52.30 45.089993 These complete our data, so far as Mars is concerned. III. FIRST SERIES OF OBSERVATIONS OF VENUS. The ohservations of Venus are, as has already been stated, far less numerous than those of Mars; and not only do the rich series garnered by Lieutenant Gilliss, at Santiago, find no corresponding comparisons on the same nights with the same star, but there are scarcely a suffi- cient total number of observations in the northern hemisphere for the deduction of trustworthy results, even by the circuitous and time-consuming methods which it has been found necessary to employ. Two hundred and one Santiago observations are to be compared with the seventy- four which can be obtained from northern observers. Of these, 83 are the results of micro- metric comparisons at Santiago, and 118 are meridian determinations made there. The northern hemisphere furnishes, during the same two conjunctions, 22 micrometric observa- tions at Washington, 34 meridian ones at Greenwich, two at Altona, and 16 at Cracow. From these we are to endeavor to extract the best determination of the parallax which they will afford. OBSERVATIONS. clxxv Apparent places of stars compared with Venus during the first series of observations. No. Date. Reduction in Apparent No. Date. Reduction in Apparent a. 3. a. 3. a. 3. a. 3. i. II A. m. f. 0 / // *. it h. m. s. " • u 110 1850.— Oct. 18 +0.92 +2.86 16 40 56 —26 28 25.3 129 1851 Jan. 26 -1.76 +4.92 17 46 21 —18 15 23.2 20 0.91 2.75 40 56 25.2 29 1.68 4.74 46 21 23.4 111 Oct. 19 +0.92 +2.71 16 42 57 —26 39 27.9 130 1850.— Nov. 9 +0.95 +4.58 17 47 15 —28 2 0.8 21 0.90 2.80 42 57 27.8 11 0.94 4.67 47 15 0.7 113 Oct. SO +0.93 +2.84 16 49 13 —26 52 17.9 131 Nov. 9 +0.97 +4.72 17 52 25 —27 51 53.5 98 0.91 3.94 49 13 17.8 12 0.95 4.82 52 25 53.4 113 Oct. 30 +0.93 +2.84 16 50 6 —26 56 33.4 133 Nov. 9 +0.97 +4.75 17 53 29 —27 49 5.8 • 0.91 2.94 50 6 33.3 11 0.96 4.82 53 29 5.8 114 Oct. 31 +0.93 +2.91 16 52 0 —27 1 14.8 133 Nov. 12 +0.96 +4.89 17 55 55 —27 50 4.5 23 0.91 3.01 52 0 14.7 14 0.95 4.94 55 55 4.5 115 Oct. 22 +0.93 +3.03 16 54 43 —26 59 38.4 134 Nov. 14 +0.95 +5.07 17 59 7 —27 39 20.4 24 0.94 3.13 54 43 38 3 16 0.94 , 5.13 59 7 20.3 116 Oct. 33 +0.94 +3.13 16 59 45 —27 11 44.2 135 Nov. 13 +0.96 +5.02 17 59 51 —27 44 56.5 25 0.9-2 3.32 59 45 ' 44.1 15 0.95 5.09 5951 56.5 117 Oct. 34 +0.96 +3.30 17 7 9 —27 23 5.4 136 Dec. 2 +0.93 +6.03 18 4 8 —25 10 47.1 27 0.93 3.42 7 9 5.3 5 0.93 6.07 4 8 47.1 118 1851.— Jan. 5 —3.14 +7.58 17 11 15 —17 35 35.2 137 Nov. 15 +0.97 +5.20 18 4 47 —27 32 3.4 10 9.03 7.30 11 15 35.6 18 0.95 5.31 4 47 3.3 15 1.81 6.80 11 15 3U.O 138 Nov. 29 +0.92 +5.94 18 6 41 —25 44 59.6 11 'J 1850.— Oct. 28 +0.94 +3.47 17 13 51 —37 50 49.5 Dec. 1 0.93 5.98 6 41 59.5 31 0.91 3.61 13 51 49.3 139 Nov. 17 +0.96 +5.33 18 7 2 -27 27 14.2 190 Oct. 36 +0 96 +3.« 17 1323 —27 31 21.2 19 0.95 5.40 7 2 14.1 30 0.93 3.64 1323 91.0 140 Nov. 20 +0.94 +5.52 18 8 41 —27 5 20.8 181 Oct. 30 +0.93 +3.58 17 1352 —37 48 59.1 32 0.94 5. 57 8 41 20.7 Nov. 1 0.91 3.66 1363 59.0 141 1851 — Feb. 4 —1.63 +3.77 18 9 3 —18 50 44.9 139 1851.— Jan. 14 —1.93 +6.79 17 13 53 —17 33 3.1 6 1.58 3.68 9 3 44.9 18 1.83 6.47 13 53 2.4 143 1850.- Nov. 28 +0.92 +5.94 18 9 31 —25 59 3.7 193 Jan. 17 -1.89 +6.32 17 21 16 —1741 6.1 30 0.93 5.97 9 31 3.6 u 1.83 6.16 31 16 6.3 143 Nov. 27 +0.93 +5.90 18 11 54 —28 836.9 194 Jan. 18 —1.85 +6.04 17 35 16 —17 43 38.6 28 0.93 5.92 11 54 30.9 21 1.77 5.88 25 16 36.8 144 1851— Feb. 5 —1.63 +3.62 18 12 35 —18 55 19.7 IBS 1850.— Nov. 1 +0.96 +4.14 17 38 46 —27 56 53.3 8 1.54 3.50 12 35 12.8 3 0.94 4.03 38 46 53.4 145 1850.— Nov. 25 +0.94 +5.84 18 13 2 -26 28 43.0 5 0.93 4.10 28 46 53.3 27 0.93 5.90 13 2 42.9 IK 1851.— Jan. 23 -1.80 +5.53 17 31 59 —17 59 46.5 146 Nov. 24 +0.94 +5.85 18 1520 —26 33 47.7 36 1.96 5.36 31 59 46.7 26 0.94 5.88 15 20 47.6 137 Jan. 33 ~1.81 +6.33 17 3843 -18 3 38.1 147 Nov. 23 +0.95 +5.84 18 1824 —26 42 54.7 27 1.70 5.08 38 42 38.4 25 0.95 5.89 18 24 54.7 138 1850.— Nov. » +0.97 +4.37 17 43 53 —38 050.1 148 1851.— Feb. 9 —1.57 +3.12 18 23 41 —19 4 20.9 8 0.94 4.53 43 53 50.0 11 1.51 3.05 33 41 20.9 clixvi OB8EKVAT10V-. A.— OBSERVATIONS OF VENUS I. WITH THE SANTIAGO EQUATORIAL. The following changes have been made from the printed observations : Page 222, October 22. Remark g.— All the observations from K°. 57, inclusive, are assumed to be recorded 1 rer. too 20, 223, 228-9, 233-4, November 2, •-'41. " 13, 244-5, •• 15, 261-2, January 14, 264, " 10, 24, great ; not the other* too gmall, as printed. 23, N°. 34, Micr. for 20r. 37 read 20r. 78. The sign of A -jr. 353 47 44.15 5.65 16.45 ill N. 18 7 43.45 40 19.08 18 7 43.45 97 7 11.85 33.93043 35341 S.I3 5.72 13.45 93 8. 18 853.38 3399.01 18 8 52.38 96 5399.88 21.93508 35337 17.13 5.99 14.15 • N. 18 9 17.96 91 6.78 18 9 17.96 96 27 5.68 18.94377 353 1 0.80 6.98 14.73 97 N. 18 » 5.15 17 58.10 18 9 5.15 96 17 38.52 17.94586 35351 3305 6.59 13.90 • N. 18 8 40. M 1338.09 18 8 40.99 96 746.14 16.94886 353 41 38.45 6.79 11.48 30 N. 18 691.70 397.37 18 6 21.70 95 46 35.73 14.95593 3539094.73 7.04 17.85 DM. 9 M. 18 S 18.98 054 32.99 18 S 18.98 9533 7.48 ]•• >.-ji-j 351 57 6.48 7.36 17.53 4 N. 18 935.47 9 4358.11 18 9 35.47 94 57 51.47 10.98947 351 31 SI. SO 7.77 18.15 A N. 18 0 59.35 03896.94 18 0 59.95 94 44 98.03 9.9733) 351 18 98.35 7.94 18.18 8 N. 17 55 17.63 0 90 57.82 17 55 17.63 94 1 99.42 6.98544 350 3590.88 8.57 8.78 H N. 17 5059.46 0 841.56 17 SO 52.46 9330 45.64 4.99398 350 4 96.78 9.09 8.02 (») N. 17 46 5.19 (11)9356 3.94 17 46 S.1B — 99 58 38.79 - 3.00274 J493930.13 — 9.44 — 9.83 OBSERVATIONS. Observations with the Santiago Meridian-Circle — Continued. clxxix Date. Obs. part. Santiago S.T. Washington M.T. Observed t—T. Circle-reading. Refr. Nadir. a. 3. h. m. «. h. m. a. h. m. «. o / II d. o / // H it 1850.— Oct.(13) 8. 17 43 35.16 (12)23 49 37.70 17 43 35.16 — 22 43 9.85 — 2.00721 349 17 2.25 — 9.59 — 8.70 21 8. 17 21 22.54 22 52 5.52 17 21 25.54 30 14 37.15 -f. 6.95558 346 48 36.73 12.27 13.20 32 8. 17 19 8.98 22 45 56.42 17 19 59 27.16 7.94857 346 33 27.22 12.40 13.55 29 8. 17 8 4.90 93 7 22.78 17 8 4.90 18 31 29.45 14.92179 345 5 20.53 13.87 3.10 31 8. 17 6 19.63 21 57 42.62 17 6 19.63 18 13 16.49 16.91508 344 47 8.75 14.20 3.95 1851.— Jan. 5 8. 17 4 53.11 21 36 40.12 17 4 53.11 17 41 51.79 21.90046 344 15 47.15 14.85 6.40 6 8. 17 5 5.71 21 32 56.78 17 5 5.71 17 37 56.73 22.89788 344 11 53.85 14.63 8.48 7 8. 17 5 27 64 21 29 22.74 17 5 27.64 17 34 46.03 23.89540 344 8 42.45 14.81 7.50 8 8. 17 5 58.98 21 25 58.08 17 5 58.98 17 32 16.93 24.89303 344 6 13.50 14.78 7.68 9 8. 17 6 39.46 21 22 42.54 17 6 39.46 17 30 29.83 25.89077 344 4 36.88 14.74 8.20 10 8. 17 7 28.90 21 19 35.94 17 7 38.90 17 29 19.80 26.88861 344 3 16.28 14.74 7.63 11 8. 17 8 27.17 21 16 38.13 17 8 27.17 17 B8 48.40 27.88655 344 2 47.85 14.84 10.50 19 8. 17 9 33.99 91 13 48.85 17 9 33.99 17 28 46.54 28.88459 344 2 49.08 14.68 13.75 13 8. 17 10 49.18 91 11 7.93 17 10 49.18 17 29 21.51 29.88273 344 3 23.48 14.78 13.05 14 8. 17 13 12.28 91 8 34.90 17 12 12.28 17 30 25.68 30.88096 344 4 29.88 14.69 15.40 15 8. 17 13 43.34 21 6 9.80 17 13 43.34 17 31 57.25 31.87928' 344 5 58.88 14.64 12.88 16 8. 17 1521.82 31 3 59.10 17 1521.82 17 33 55.61 32.87769 344 7 58.73 14.63 14.38 17 8. 17 17 7.73 21 1 41.89 17 17 7.73 17 36 16.86 33.87618 344 10 19.18 14.78 13.43 90 8. 17 23 7.59 30 55 53.95 17 33 7.59 17 45 18.41 36.87214 344 19 18.48 14.63 11.33 91 8. 17 25 20.84 30 54 9.93 17 25 20.84 17 48 53.62 37.87095 344 22 54.43 14.30 12.40 23 8. 17 37 40.15 20 52 32.95 17 27 40.15 17 53 41.51 38.86982 344 26 43.40 14.28 13.50 93 8. 17 30 5.63 20 51 2.11 17 30 5.69 17 56 36.81 39.86877 344 30 41.08 14.18 15.98 94 8. 17 32 36.84 20 49 37.01 17 32 36.84 18 0 44.42 40.86779 344 34 47.43 14.35 14.65 95 8. 17 35 13.73 20 48 17.56 17 35 13.73 18 4 56.79 41.86687 344 39 0.50 14.27 15.33 96 8. 17 3755.96 20 47 3.44 17 37 55.96 18 9 18.20 42.86601 344 43 18.70 14.34 12.15 97 8. 17 40 43.29 30 45 54.40 17 40 43.29 18 13 38.97 43.86521 344 47 42.73 14.22 15.43 28 8. 17 43 35.68 20 44 50.41 17 43 35.68 18 18 3.38 44.86447 344 52 6.05 14.13 14.43 Feb. 3 8. 18 2 95.00 20 40 1.90 18 2 25.00 18 43 32.23 50.86112 345 17 20.78 13.74 —10.70 1 8. 18 9 13.90 20 38 57.16 18 9 13.90 18 50 48.16 52.86038 345 24 35.50 13.61 + 0.38 6 8. 18 12 43.57 20 38 30.35 18 12 43.57 18 54 13.44 53.86007 345 28 1.45 13.43 — 1.48 7 8. 18 16 16.99 20 38 7.98 18 16 16.99 18 57 27.12 54.85981 345 31 17.00 13.43 2.35 10 8. 18 27 15.75 20 37 16.51 18 37 15.75 — 19 5 35.59 +57.85922 345 39 24.78 —13.40 — 1.68 C.— OBSERVATIONS OF VENUS I. WITH THE WASHINGTON EQUATORIAL. The requisite corrections appear to be, for these observation, thus : Page 391, 392, October 22, 28, 395, November 9, 397, M 13, 399, M 21, 400, January 13, 401, 402, n 15, 403, If 15, 404, «( 24, Ko. 18, ^i for llr.989 read 10.989 The whole series of printed A I is evidently computed by the employment of the differences corresponding to the third and second threads, instead of the second and first ; and it has been taken for granted that the observation was made in this way. Otherwise the A = 2. '49 •• N— "(4 " ) = + 24 .776 = 6 20 .83,^=2. 89 Mean Chron'r time for 6A. 67m. 9«. 72 read 5A. 56m. 48«. 55 At /or Mean 2' 17" 22 llr. 135 = 2' 51". 16 5' 24". 35 5A. 42m. 44<.38 21r. 793 = 5" S5". 00 two 398, 399, 404, January 1*. 21, 15, 1,3, 7.8, " 2' 17". 26 llr. 316 = 2' 53". 92 " 6' 24". 25 Chron'r time 6A. 41m. 29>. 38 *l far 2 Ir. 797 = 5' 36". 06 " three The comparisons In declination with the second star give — Venus 8 — ° (2 comparisons) = — 14r. 231 = 3' 38". 74 " N — o (2 '• ) = — 11 .367 = 2 64 .73 &l for Ir. 948 = 27". 94 read Ir. 815 = 27". 90 The sign of At! should be negative. &l for 6r. 879 = 1'45".74 read 6r.900 = 1'46".06 The comparison-star is Argel .391. 70. = 1". 32 = l .05 The observation of October 19 is excluded from the discussion. \i\i- i. Observations with the Washington Equatorial. Date. OtM.pirt. Wub. 8.T. Wash. M.T. t— T. StarN*. Sur'i(5. MeM'd I>n. Rcfr. ObB'd S N*. comp. N. 8. 1850. k.m... k. m. l. • i ii _ • i it Oct. 19 N.8. ! 20 8 23.71 6 16 6.61 —56.738816 110 —36 38 35.31 —4 33.86 1.78 -26 33 50.85 4 3 81 N.8. 80 11 51.14 6 11 41.66 54.736189 ( 113 jg.152 17.85 + 1 59.79 0.70 jg jj ( 34.43 4 4 I 113 '56 33.33 +6 7.54 9.69 1 23. 09 4 4 93 Vs. ' 90 1 35.03 5 57 33.35 53.751814 114 97 1 14.74 +9 34.19 0.46 96 58 40.09 5 4 38 N.8. 90 35 35.48 5 57 53.40 47.751478 13U 97 31 21.08 —5 43.23 9.01 37 37 5.33 3 3 NOT. 1 N. S. 30 31 13.19 5 47 45.55 43.758501 135 37 56 53.24 +5 0.07 1.47 27 51 51.70 4 4 • t N. 8. 90 30 96.31 5 43 9 80 49.761773 185 37 56 53.29 +238.23 0.70 37 54 14.36 8 8 9 N.8. SO 53 45.79 5 37 47.36 35.765434 130 88 9 0.83 +5 11.49 1.54 97 56 47.80 3 3 10 N. 8. 90 58 58.73 5 40 3.36 34.763950 131 87 51 53.45 —3 16.74 1.18 3755 11.37 9 9 N. 8. 90 36 45.51 5 17 53.79 34.779239 130 98 9 0.78 +6 47.88 1.88 37 55 11.09 9 3 13 N.8. 91 3 43.99 5 33 0.13 31.768748 133 37 50 4.50 +3 98.78 0.80 97 47 94.99 4 4 14 N. 90 59 54.68 5 95 15.53 30.774127 135 97 44 58.48 + 50.59 0.94 37 44 5.79 4 4 91 N. 91 17 19.48 5 15 6.11 -93.781180 140 —97 5 80.73 —1 33.09 0.44 97 6 55.19 10 11 1851. Jaa. 13 N. 14 19 19.71 18 38 56.76 +99.777047 118 17 35 35.80 +6 20.50 6.13 17 99 9.17 IS 18 15 N. 13 54 98.81 18 13 14.98 31.759309 199 17 33 8.17 +1 21.56 0.14 17 31 4fl.47 16 16 M N. 14 91 93.34 18 4 0.90 +40.753986 198 —17 59 46.61 — 97.22 0.05 -18 0 13.88 4 4 OBSERVATIONS. From the Greenwich volumes we obtain the meridian observations, D.— OBSERVATIONS OF VENUS I. WITH THE GKEENWICH MURAL CIRCLE. VENUS I. Observations with the Greenwich Mural Circle. Date. Obs. part. Green. 8.T. Wash. M.T. t-T. Circle-reading. Kefir. Zenith Pt. corr Observed d. Semid. A. m. t. A. m. s. d. 83-31' ° / It „ 1850—Oct. 15 S. 16 23 6.00 — 2 20 12.3 — 61.09736 51.95 4 9.91 26.52 — 25 44 43.06 15.11 16 0. 16 27 3.85 2 20 11.0 60.09770 35.13 4 11.94 26.52 25 56 33.38 21 N. 16 46 35.15 2 20 33.4 55.09760 44.00 4 31.43 25 62 26 47 29.23 16.59 Nov. 11 N. 17 52 15.24 2 37 27.1 34.10934 39.30 4 55.26 24.28 27 53 58.00 24.88 28 N. 18 8 48.90 3 27 46.7 17.14429 52.23 4 24.80 23.03 26 10 45.90 29.07 29 N. 18 8 16.68 3 33 14.7 16.14739 37.60 4 22.16 23.03 26 0 28.96 29.38 Dec. 6 N. 17 59 37.56 — 4 833.8 — 9.17250 0.18 3 53.97 20.82 24 34 30.09 33.93 27 C. 17 10 44.24 17 36 30.9 + 12.73358 38.12 2 46.44 30.73 18 55 26.65 1851.— Jan. 8 N. 17 5 50.23 16 44 16.7 24.69742 50.30 2 32.83 37.95 17 32 47.17 24.30 17 N. 17 16 44.8V 16 19 46.4 33.68040 55.52 2 34 18 39.05 17 35 £2.32 21.00 22 N. 17 27 11 03 16 10 31.3 38.67397 58.73 2 38.70 38.90 17 51 59.34 19.20 29 N. 17 45 56.90 16 1 42.7 45.66786 42.83 2 37.03 38.51 18 21 37.90 17.30 Feb. 2 N. 17 58 26.66 15 58 36.8 49.66559 38.19 2 41.61 38.51 18 38 36.40 16.30 3 8. 18 1 44.91 15 57 48.6 50.66515 8.93 2 43.58 38.37 18 42 35.73 16.60 5 N. 18 8 32.14 15 56 42.9 52.66439 6.90 2 42.94 38.37 18 50 5.63 15.60 7 N. 18 15 33.65 15 55 51.4 54.66379 52.69 3 41.79 38.37 18 56 49.90 15.20 16 8. 18 49 40.82 15 54 29.8 + 63.66284 39.59 252.30 38.13 — 19 13 19.14 13.50 To which are added finally the two observations at Altona, (A.N. XXXIII, 23.) E.— OBSERVATIONS OF VENUS I. WITH THE ALTONA MERIDIAN-CIRCLE. VENUS I. Observations with the Altona Meridian-Circle. CENTER. Date. Altona M.T. Wain. M.T. Obs'd a. Obs'd S. t— T. A. m. t. A. m. f. h. m. ». •» / // 1851.^Jan. 27 91 12 3 15 24 6 17 40 4.08 —18 12 27.9 +43.641736 31 31 8 11 15 20 14 17 51 57.81 —18 39 52.6 +47.639051 OBSERVATIONS. IV. SECOND SERIES OF OBSERVATIONS OF VENUS. Apparent placet of stars compared with Venus during the second series of observations. Ho. D«te Reduction In Apparent. No. Date. Reduction in Apparent a. 8. a. d. a. d. a. d. 36 18SS.-Auf.il 14 f. —0.23 0.18 11 +0.90 O.W A. m. l. 7 28 59 •-•.-. I * t it +15 15 9.3 9.3 59 1859.-June 3 7 ». —0.83 0.83 it +1.13 1.15 k.m.l. 7 59 14 59 14 • 1 H +93 SO 46.5 46.6 37 Au». IS 17 -0.14 0.10 +0.»9 0.93 79(98 9998 +1594 43.1 43.1 61 Sept. 9 4 +0.13 0.19 +0.39 0.39 8 5 97 597 +16 491.1 91.0 38 July 30 Auf. 1 — 0.45 0.49 +0.74 O.W 79999 99 99 +14 40 7.8 7.7 M Jan. 18 98 +0.47 0.57 -4.09 3.83 8 11 44 11 45 +94 98 59.3 59.5 31 4* A«f. 7 9 AM 3 8 —0.31 0.97 -0.38 0.3J +0.89 090 +0.8S 0.86 7 3038 30 38 7 3088 30 58 + 14 5337.5 37.5 +14 47 39.9 40.0 Feb. 7 17 97 Mar. 8 18 0.61 0.60 0.55 0.4* 0.33 3.49 3.90 9.97 1.61 0.99 11 45 11 45 11 45 11 44 11 44 59.9 99 0.4 1.0 1.7 9.4 41 AM.» • —0.05 0.0* +0.88 0.89 7 33 44 3944 +15 4099.9 99.9 66 Feb. 9 4 +0.60 0.61 —3.65 3.57 8 13 11 11 11 +94 99 18.8 18.9 49 July 99 31 —0.47 0.44 +0.70 0.76 7 33 48 3343 —14 33 1.5 1.6 68 Jan. 31 Feb. 3 +0.59 0.61 —3.77 3.66 8 16 9 16 9 +94 95 1.6 1.7 41 AM si H —0.03 +0.04 +0.8S 0.84 7 33 50 33 SO +15 49 59.0 SI. 9 70 June 9 13 -0.75 0.78 +1.39 1.33 8 19 98 19 98 +91 38 17.9 17.9 44 Al«. 94 98 +0.03 0.19 +0.35 0.97 7 3858 3858 +15 53 1.0 0.9 74 June 11 13 -0.75 0.75 +1.31 1.33 831 43 91 43 +91 90 55.6 55.6 45 May S» 31 —0.88 0.89 +1.04 1.03 741 51 41 51 +94 9 13.7 13.7 75 Juir 8 10 —0.89 0.70 +0.68 0.71 8 34 94 94 94 +15 46 90.8 90.9 48 Aug. 27 30 +0.07 0.14 +0.70 0.65 7 44 53 44 53 +155841.1 41.1 76 July 5 7 —0.70 0.69 +0.70 0.74 89S58 9658 +16 14 8.5 8.5 SO Ma> 29 June 9 -0.85 0.87 +1.14 1.19 7 47 14 47 14 +94 0 39.0 39.0 81 June 14 16 -0.71 0.79 +1.35 1.36 831 10 31 10 +20 36 13.6 13.6 51 AOf-97 30 +0.06 0.13 +0.83 0.57 74835 48 35 +16 10 53.9 53.9 83 June 93 94 —0.71 0.79 +1.05 1.07 8 33 94 33 94 +18 46 15.7 15.7 a June 1 3 -0.85 0.88 +1.13 1.19 7 50 53 5053 +33 34 51 .9 51.9 84 June 91 93 —0.71 0.79 +1.09 1.19 8 32 35 3335 +19 0 44.1 44.1 a fkpt. 1 3 +0.15 0.90 -0.54 0.47 75331 5331 +1558 1.9 1.8 86 June 93 95 —0.69 0.69 +1.16 1.18 839 94 39 94 +18 35 43.9 43.9 A.— OBSERVATIONS OF VENUS II. WITH THE SANTIAGO EQUATORIAL. The corrections to the observations are : The sign of Ad is to be reversed, except in the following Page 283, June 12 184, 286, 287, 15 22 14 Page 288, July 289, 294, " 299, " 6 9 13 28 Page 299, August 31 303, September 7 Page 282, No. 12, Object for P. read 8. P. 291, for H. C. 14861 " W. VH. 905 Remarks. Corrected diameter for 56". 53 nod 66''. 33 And then for the deduced results: The sign of Ad U to be reversed, except in the following caies : Page 284, June 12 295, August 16 Page 284, June 12, line 6, for s. read" 287, " 23, "1,1, " 3r. 102 = I'O". 46 nod 3r. 118 = 1' 0". 77 OBSERVATIONS. We thus have the accompanying groups of observations : clxxxiii VEXUS II. Observations with the Santiago Equatorial. Date. Obs. part. Sant. S.T. Wash. M.T. t—T. Star N'. Star's 8. Meas'd D d. Refr. Observed 8. N°. of comp. N. S. A. ra. ». h. m. f. d 0 1 11 i it ti 0 1 It 1853.— Mar 30 N. S. 11 11 30.38 6 11 9.92 —45.742246 45 +24 9 13.74 —338.50 0.51 +24 5 34.73 5 5 Jane 3 N. 8. 11 7 55.99 555 48.38 43.753913 53 23 34 51.22 —4 42.00 .56 23 30 8.66 7 7 3 N. S. 11 11 38.91 5 55 34.79 41.753070 23 15 3 +2 46.81 .33 2 2 13 N. 8. 11 44 34.90 5 53 53.20 33.754952 74 21 20 55.62 —3 3.34 .37 21 17 51.91 4 4 15 N. S. 11 55 4.81 5 51 42.63 29.755757 81 20 36 13.59 — 23.59 .05 20 35 49.95 3 3 22 N. 8. 13 31 2.00 5 50 4.18 22.756897 84 19 0 44.10 —230.57 .30 18 58 23.33 5 5 33 N. 8. 12 32 36.03 5 57 40.40 31.751616 83 18 46 15.66 —1 36.64 .22 18 44 48.80 6 6 24 N. 8. 12 32 34.05 5 53 42.52 30.754370 86 18 35 43.87 —4 14.98 .66 18 31 28.23 3 3 July 6 N. 13 7 33.71 5 41 15.53 8.763016 76 16 14 8.52 —1 42.91 .53 16 12 25.08 4 9 N. 13 11 12.51 5 33 15.97 — 5.768565 75 15 46 20.84 — 31.96 .27 15 45 48.61 10 30 N. 8. 3 56 14.33 175328.00 +15.745462 49 14 33 1.53 +3 33.12 .96 14 36 35.61 2 3 31 N.8. 3 0 38.37 17 53 55.42 16.745779 38 14 40 7.67 —1 58.67 .45 14 38 10.55 2 2 Aug. 4 N. 8. 3 58 42.31 17 36 16.04 30.733518 40 14 47 39.94 — 34.33 0.10 14 47 5 51 1 3 8 N. 8. 352 21.58 17 14 12.73 24.718202 39 14 53 37.69 +5 50.92 1.28 14 59 29.69 1 1 12 N. 8. 3 17 33.80 17 23 37.18 98.724735 36 15 15 2.31 —1 19.88 0.16 15 13 42.27 5 4 13 N. S. 3 33 15.73 17 24 33.44 39.725359 36 15 15 3.32 +3 19.82 .27 15 17 22.41 3 3 16 N. S. 394 55.50 17 15 14.04 33.718912 37 15 34 43.13 +3 29.62 .40 15 28 13.14 4 4 SI N. S. 3 6 13.47 16 36 55.55 37.693311 41 15 40 22.88 +3 57.28 .85 15 44 21.01 3 4 N. S. 3 38 5.09 17 8 41.94 37.714374 41 15 40 23.88 +4 1.88 .44 15 44 35.30 7 7 33 N. 8. 3 31 51.35 16 58 33.32 38.707331 43 1549 51.95' —2 41.89 .34 15 47 9.79 1 3 33 N. 8. 3 46 20.19 17 9 53.87 39.714628 43 15 49 51.94 — 5.7B .01 15 49 46.15 3 2 88 N. 8. 4 8 38.56 17 11 39.04 44.716423 46 15 58 45.08 + 34.31 .03 15 59 5.42 3 4 Sept. 1 N. 8. 4 15 41.69 17 3 57.39 48.710386 96 1558 1.89 +3 2.50 .38 16 1 4.67 3 3 3 N. 8. 4 11 1.33 16 54 21.80 49.704420 56 1558 1.85 +2 39.65 .28 16 0 41.78 4 4 3 N.fi. 4 16 3.64 16 55 26.47 50.705168 61 16 4 21.05 —4 27.58 .43 15 59 53.05 5 5 8 N. 8. 4 31 54.04 16 49 39.19 53.701033 65 15 55 48.39 — 21.54 .03 15 55 26.82 5 5 7 'N. s. 4 18 53.28 16 43 33.02 54.696216 65 15 55 48.53 —2 41.54 .30 15 53 6.68 4 4 8 N. 8. 4 35 45.94 16 45 28.66 +55.698248 67 +15 44 33.78 +5 52.63 0.62 15 50 27.03 10 10 B.— OBSERVATIONS OF VENUS II. WITH THE SANTIAGO MERIDIAN CIRCLE. A few corrections are here assumed. Page 328, N°. 31, Observed transit for Sh. 37m. 29». 71 read Sh. 36m. 29«. 71 App. a " 8 36 31.93 " 8 35 31.93 829, " 37, The observed transit was probably 8 5 46. 58 " 41, Object for S. L read N. L. Corr. forSemid. — 27". 8 " +27". 8 After which we have the following table : dxxxiv OBSERVATIONS. VKNl'R II. Observations with the Santiago Meridian-Cirde. DM*. Ob., put. But. 8.T. Wuh. M.T. oix'd a. Ob.'d . • t It • / n i / n | i8s&-M*r » 8. 74940.19 9 49 53.87 30997 35.1 +94 6 50.74 —45.886676 — 91.03 +91.9 91 8. 7 4554 SI 9 49 111.93 309 39 10.4 935597.89 44.887359 93.51 10.4 Jon* 9 N. 7 58 10.03 9 40 34.49 303 9 91.8 93 33 lil.34 49.888480 93.13 99.1 3 8. 7 U 10.33 9 39 38.40 303 15 10.3 93 1991.60 41.689140 90.98 91.4 19 N. • 8 18 19.13 9 97 13.93 305 14 39.9 91 90 19.00 39.807785 16.18 5.3 13 B. 8 90 15.90 9 95 90.73 305 99 4.0 91 5 38.98 31.899067 14.07 6.1 • N. 8 3394.53 9 3 4.00 307 33 3S.O 19 0 57.79 99.914538 8.88 10.9 • 8. 8 34 13.56 5955.90 307 47 45.9 18 46 45.00 91.018713 7.49 9.8 M N. 8 34 51.54 56 38.96 308 0 39.0 18 34 6.34 90.918093 7.13 5.0 98 N. 8 35 58.65 49 0.93 30851 51.4 17 49 43.94 16.939169 5.03 5.4 99 B. 8 35 49.10 37 56.80 309 4 50.1 17 99 48.13 15.031981 4 89 0.7 30 N. 8 35 31. S3 33 43.76 309 16 0.9 17 18 37.96 14.034900 3.70 + 0.3 July 1 N. 8 35 S.OS 9991.04 309 37 39.5 17 7 0.14 13.037951 3.73 — 1.8 5 N. 8 31 39.98 10 13.89 310 10 33.8 1694 9.34 0.051946 4.53 + 9.S 8 N. 8 30 94.47 5 1.67 310 90 18.3 16 14 14.01 8.954841 3.70 S.5 7 N. 89859.90 0 59 41.44 310 99 40.8 16 4 53.83 7.958547 9.99 3.4 8 N. 897 96.39 0 54 13.96 310 38 94.9 15 55 53.84 6.089358 09.83 10.9 9 N. 8 95 43.98 0 48 34.31 310 46 53.7 15 47 31.81 5.066971 9.00 91.6 10 N. 89359.38 0 49 46.90 310 M 56.3 15 3994.11 4.070290 0.60 14.3 13 N. 8 17 36.67 0 94 44.58 311 16 16.9 15 18 9.06 — 1.969817 1.35 16 5 (W) N. 8 3 17.53 (17)33 50 48.34 311 43 90.8 14 51 55.13 + 9.903613 0.59 18.7 99 N. 7 49 94.78 93 54 35.71 311 59 48.3 14 34 98.30 11.954580 0.09 19.6 m N. 738 3.94 93 36 37.49 311 58 10.7 14 36 5.93 14.941985 0.99 17.7 30 N. 7 34 11.60 23 30 40.34 311 58 53.3 14 37 19.73 15.937965 0 50.93 91.0 31 N. 7 39 97.97 99 95 0.98 311-55 13.1 14 39 9.93 16.934040 0 59.91 18.7 Aug. 4 N. 797 5.99 92 3 56.34 311 46 6.8 14 48 7.91 90.919400 1 0.40 19.8 5 N. 798 9.88 31 59 4.38 311 43 16.4 14 SI 1.01 91.916033 1 0.90 16.0 6 N. 7 95 33.75 91 54 39.46 311 40 14.6 14 54 9.60 99.913761 1 0.00 17.0 7 N. 7 94 47.53 31 49 50.44 311 37 5.4 14 57 19.83 93.909611 0 59.82 15.7 8 N. 7 94 91.99 91 45 98.36 311 33 44.9 15 0 35.09 3-1.905579 0 59.71 13.0 10 N. 79358.59 91 37 13.90 311 96 48.3 15 731.S5 36.900855 1 1.94 15.1 19 N. 7 94 14.98 31 99 38.40 311 19 31.3 15 14 47. 17 98.895583 1 9.06 17.7 13 N. 794 37.18 91 98 4.60 311 15 53.7 IS 18 97.48 99.893109 1 1.07 14.0 14 N. 795 8.46 91 33 39.94 311 19 17.7 15 99 4.38 39. 890740 1 0.37 19.4 18 N. 798 38.08 91 16 17.50 311 5 19.6 15 90 9.74 33.885313 1 1.03 19.8 91 N. 7 38 48.68 91 9 45.55 310 49 6.9 15 45 15.06 37.876917 1 3.75 1S.9 99 N. 7 34 93.99 91 095.93 310 46 99.0 15 48 0.49 38.875300 1 9.61 14.3 93 N. 738 6.38 90 58 13.89 310 43 59.0 15 50 30.75 30 873760 1 3.04 14.4 98 N. 7 4893.79 90 48 49.06 310 34 48.3 15 59 33.11 44.867334 1 3.00 16.7 31 N. 7 5344.63 90 44 90.98 310 33 55.8 16 1 95.09 47.8841S3 1 4.11 17.4 Sept. 1 y. 7 58 SSI. 31 30 43 9.33 310 33 58.9 16 1 30.70 48.663390 1 3.70 18.3 9 N. 7 50 4.68 90 41 48.35 310 33 93.8 16 0 58.98 49.869364 1 3.47 15.5 3 N. 8 1 51.78 90 40 39.08 310 34 13.7 16 0 9.87 50.861583 1 9.06 13.5 8 N. B 10 39.68 90 37 37.80 310 38 57.6 15 55 93.86 53.859464 1 3.75 16.4 7 N. 8 13 43.85 90 3645.58 310 41 91.9 IS 59 59.05 54.858860 1 9.94 15.0 . I N. 8 16 51.87 90 3557.1V 310 44 9.8 + 15 50 19.15 -4-55.858300 —1 9.34 +14.6 C.— OBSERVATIONS OF VENUS II. WITH THE WASHINGTON EQUATORIAL. The corrections to the printed observations here assumed and applied are these : Page 406, May 31, Ad N°. 12, /or 32r. 108 read 32r. 098 407, Jane 5. 11 7, » 46 .597 46 .687 409, " 9, II 25, " 0 .847 0 .841 410, 44 H, 4 1 2, " ._,,, .029 30 .029 Micr. » 17, •' 4 M .181 " 4 46 . 181 411, 44 12, '• 6, " a . 2:iO " —19 .195 412, • 4 26, Micr. N.w. 8 & 10 •• :i & 4 2 .v :i 414. Aug. 28, It 6, •• 43 .2 Hi 42 . K56 >. ,.t 6, II 2, " U .656 •' +41 .666 OBSERVATION?. clxxxv The results, therefore, become modified as follows : Page 406, May 31, line 1, 2, for 32r. 057 = 8' 12". 74 408, June 5, " 5, " 7 A. 58m. 6». 60 410, " 11, " 5, " 9 16 7.80 " 5, 7, " 3er.759 = 7' 52''. 81 414, August 29, " 5, " S. F. " 5,7, " 42r. 749 — 10' 57". 10 8, " +1". 06 The observations of June 14, 15, 16, 27, and September 5, seem affected by some unknown source of error, and so non accordant with each other, or with the ephemeris, that the attempt to employ them has proved hopeless. read 32r. 055 = 8' 12". 75 1 ' 8A. 22m. 6*. 60 ," 9 14 57.70 " 30r. 959 = 7' 55". 89 N.F. " 42r. 660 = 10' 65". 76 " — 1".06 VENUS II. Observations with the Washington Equatorial. Date. Obs. pan. Wash. 8. T. Wash. M. T. t—T. Star. N°. Star's §, Meas'dZM. Befr. Oto'd - 28 43.84 31 30.8 + •<» 12.223 0.51 7.72 0. 31 43.0 17.8 27 .439454 27 11.91 31 16.6 + .01 12.181 0.51 7.68 0. 31 28.8 17.3 30 .400840 22 54.97 29 57.9 + .16 11.879 0.50 7.55 0. 30 9.8 15 5 31 .408113 21 32. .15 29 20.0 + .10 11.853 0.50 7.50 —0.01 c. 29 31.8 13.4 1850.-Jan. 1 .402747 20 14.38 28 37.9 + ." 11.766 0.50 7.45 .01 c. 28 49.7 15.8 9 .405376 1858.80 27 51.1 + .07 11.709 0.49 7.39 .01 c. 28 2.8 15.1 4 .408426 16 37.38 26 6.5 + .09 11.547 0.49 7.29 .01 c. 26 18.0 16.0 6 .365404 14 32.03 24 13.2 + .20 11.217 0.48 7.18 .01 0. 24 24.4 16.2 .433114 1427.92 24 9.2 — .14 11.287 0.48 7.17 .01 c. 24 20.5 15.9 7 .396962 1331.33 23 10.3 + .09 11.271 0.47 7.12 .01 0. 2321.6 16.4 6 .398542 12 35.78 92 7.6 .00 11.178 0.47 7.06 .01 0. 22 18.8 16.1 9 .391292 11 44.34 21 4.4 + .02 11.083 0.47 7.00 .01 0. 21 15.5 16.0 10 .405308 10 55.46 19 59.2 — .07 10.967 0.46 6.94 .01 0. 20 10.2 13.9 11 .393909 10 11.41 18 55.2 — .03 10.865 0.46 6.88 .01 0. 19 6.1 13.7 12 .385899 9 30.81 17 61.2 .00 10.790 0.45 6.82 .01 0. 18 3.0 14.3 13 .376816 8 53.91 16 47.9 + .03 10.688 0.45 6.76 .01 0. 16 58.6 14.7 14 .387213 8 19.91 15 44.3 — .02 10.584 0.45 6.69 .02 0. 15 54.9 14.7 15 .389530 7 50.14 14 42.4 — .03 10.486 0.44 6.63 .02 c. 14 53.9 16.0 .43643» 7 48.63 14 39.1 — .98 10.161 0.44 6.62 .02 c. 14 49.3 13.2 16 .381733 734.72 1341.9 — .04 10.384 0.44 6.57 .02 0. 13 52.3 14.5 17 .380340 7 1.38 12 43.2 — .05 10.281 0.43 6.51 .03 c. 12 53.5 15.0 18 .380105 6 42.45 11 46.4 — .05 10.175 0.43 6.45 .02 c. 11 56.6 15.3 19 .359055 6 27.41 10 53.8 + .09 10.089 0.43 6.38 .02 0. 11 2.9 9.5 30 .354745 6 15.04 10 0.5 + .03 9.990 0.42 6.32 .02 c. 10 10.5 11.1 21 .3'i7235 6 7.27 9 9.8 — .04 9.886 0.42 6.26 .03 c. 9 19.7 10.8 82 .369468 6 9.51 8 22.2 — .06 9.778 0.41 6.20 .02 c. 8 32.0 11.9 23 .351916 6 1.22 7 38.1 .00 9.697 0.41 6.14 .02 c. 7 47.8 12.4 .407392 6 1.24 7 35.7 — .24 9.448 0.41 6.14 .02, c. 7 45.1 10.6 24 .373805 6 3.36 6 55.1 — .10 9 552 0.41 C.08 .02 c. 7 4.6 11.8 25 .364575 « 8.77 6 16.2 — .07 9.478 0.40 6.02 .02 c. 6 25.7 11.4 26 .365774 6 17.51 5 39.5 — .09 9.370 0.40 5.96 .02 c. 5 48.9 11.6 27 .348543 6 29.26 5 6.2 — .03 9.310 0.39 5.90 .02 0. 5 15.5 11.7 28 .362791 6 34.61 4 34.5 — .10 9.174 0.39 S.84 .02 0. 4 43.7 12.6 • .349222 7 9.64 4 6.3 — .05 9.113 0.39 5.78 .02 c. 4 15.4 11.6 31 .351182 5 7 48.33 +26 3 16.9 —0.08 + 8.913 0.38 5.66 —0.02 0. +28 3 25.8 +11.9 OBSERVATIONS COMPARED WITH KPIIKMERIS. MARS I. Computation of observations with the Washington Equatorial. D«M. Wart. M.T. in doe. of day. Tib. d. T.b. 0. Parallax. Bemid. Ohi'd part. Oomp'd d. Ad. a. d. a. 3. k.m. t. • / n •. n «. u • 1 II II l«49.-No». 9 .804833 6 35 51.08 +9431 l.S +0.19 —3.16 0.44 6.59 0. +94 90 58.3 + 91.5 4 .554117 68685.58 84 95 54.7 0.38 3.67 0.45 8.71 0. 94 85 51.0 19.4 .(01903 686 86.19 84 98 9.1 0.19 3.18 0.45 6.71 0. 9495 58.9 19.4 1 .5SOW4 6 86 46.81 34 31 10.6 0.38 3.68 0.45 6.81 0. S4 31 6.9 18.6 18 UttMM ivOTVB 6 88 81.88 94 4833.1 0.33 3.58 0.47 7.19 0. 94 4899.6 91.4 .810775 6 96 30.88 34 48 44.4 0.06 3.15 0.47 7.19 0. S4 48 41.9 91.4 13 .516646 6 96 4.80 84 51 33.6 0.46 3.96 0.48 7.17* 0. 94 51 89.6 93.9 M .507357 18 39.10 25 88 90.3 0.38 3.75 0.51 7.67 c. 85 38 16.6 90.8 • .808587 16 29.66 35 35 11.5 0.34 3.66 0.53 7.74 0. 35 35 7.9 99.8 .597*51 16 33.69 35 3599.6 0.10 3.86 0.58 7.74 c. 35 3536.3 18.4 Dae. 8 .506337 9 38.75 86 635.4 0.18 3.33 0.53 7.89 0. 99 693.1 33.8 .491834 9 38.11 98 6 83.0 0.18 3.44 0.53 7.89 c. 88 6 19.6 31.1 11 .435848 5 54 51.37 86 18 9.4 0.44 3.90 0 54 8.03 c. 96 IB 5.5 17.3 13 .481838 5 59 34.30 88 90 10.3 0.39 3.47 0.54 8.03 0. 36 30 6.8 93.1 17 .445164 5 43 47.7* 9637 37.8 0.88 3.39 0.53 7.88 0. 96 37 34.4 18.4 87 .3*7843 5 87 15.00 98 31 17.3 0.31 3.34 0.51 7.68 a 98 31 14.0 18.8 31 .395337 5 91 33.38 96 9990.6 0.84 3.14 0.50 7.50 0. 36 39 17.5 17.3 1850.— Ju. 5 .383881 5 15 33.31 9895 11.3 0.31 8.99 0.48 7.33 a 86 35 8.3 15.6 8 .381803 5 11 45.84 3631 6.3 0.84 8.98 0.47 7.00 0. 96 91 3.3 11.8 • .341853 5 9 33.53 86 17 54.1 0.87 3.01 0.45 6.83 0. 38 17 51.1 15.3 14 .370371 5 830.45 96 15 45.9 0.19 3.71 0.45 6.69 0. 96 IS 43.5 14.6 99 .338453 5 6 3.61 86 8 33.6 0.14 3.57 0.41 6.80 0. 96 811.0 13.7 39 .175307 5 7 1.18 -1-88 4 8.3 +0.98 —9.73 0.39 5.78 0. +36 4 5.6 + 13.6 MARS I. Computation of observations with the Greenwich Equatorial. Paralla i. Banid. Due. Wuh. M.T. In Tab. a. Tab. 8. Oba'd Comp'd d. Ad. dec. of day. a. 8. a. d. part. *. m. «. • / n •. n i. n • / n 1849,-Nor. 96 .133480 8 16 55.70 +35 33 53.6 -9.77 0.51 7.79 C. +95 33 43.9 +16". 1 30 .343963 6 11 44.33 95 47 58.0 6.31 0.59 7.88 0. 95 47 51.8 (87.3) Dee. 8 .184983 5 i» 59.37 36 10 46.6 +0.51 7.89 0.53 8.01 0. 96 10 39.0 15 .979344 5 47 37.75 96 34 51.4 0.09 6.99 0.53 8.01 0. 96 34 45.3 17.4 87 .064511 5 37 46.84 86 31 93.8 0.61 8.45 0.51 7.70 0. 3631 14.3 15.8 I860.— Jin. 4 .177475 8 16 53.03 86 96 19.6 0.16 5.74 0.49 7.30 0. 36 38 13.9 13.9 5 . 107174 5 1551.10 86 9537.8 0.39 6.40 0.48 7.94 0. 36 35 30.8 13.9 7 .130159 5 13 46.60 +36 93 88.7 +0.35 —5.99 0.48 7.13 0. +36 33 90.8 + 13.1 OBSERVATIONS COMPARED WITH El'HEMERIS. clxxxix MAUS I. Computation for Greenwich Meridian Observations. Date. Wash. M.T. in dec. of day. Tabular Parallax in d. Semid. Cnmp. O. Ad. a. 8. a. d. 1849.— NOT. 1 .438909 A.m. «. 6 25 24.24 • / /; +24 18 13.0 n —5.45 t. 0.44 n 6.55 » / // +24 18 7.55 +14.0 6 .426201 26 45.90 24 30 50 4 5.62 0.45 6.80 24 30 44.78 18.0 16 .397591 24 59.91 25 0 48.6 5.93 0.49 7.31 25 0 42.67 19.0 30 .350261 11 43.74 25 47 59.3 6.21 0.52 7.86 25 47 53.09 19.9 Dec. 4 .335377 6 6 0.55 26 0 18.9 6.24 0.53 7.96 96 0 12.66 18.9 8 .320051 5 59 38.94 28 11 16.7 6.94 0.53 8.01 26 11 10.46 18.3 15 .292590 47 35.59 26 24 53.2 6.18 0.53 8.01 26 24 47.09 19.8 17 .284694 44 4.87 26 27 27.1 6.15 0.53 7.98 26 27 20.95 18.9 19 .276816 40 35.34 96 2993.9 8.11 0.53 7.94 26 29 17.09 18.5 27 .245890 2728.78 96 31 19.9 5.91 0.51 7.69 S6 31 13.99 15.1 • .249129 25 59.33 26 31 0.5 5.87 0.51 7.65 26 30 54.63 16.6 99 .238397 94 32.37 26 30 35.0 5.84 0.51 7.61 26 30 29.16 16.1 1850.-J,n. 4 S .316678 .213183 16 50.35 15 44.27 96 26 17.1 96 25 21.0 5.62 5.59 0.49 0.48 7.3Q 7.24 26 26 11.48 26 25 15.41 16.9 15.5 1 .206315 13 43.19 26 2322.0 5.50 0.48 7.13 26 23 16.50 15.6 S3 .157303 6 1.22 26 7 46.6 4.80 0.41 6.15 26 7 41.80 13.6 30 .139089 7 19.22 26 3 45.6 4.48 0.38 5.73 26 3 41.12 11.4 Feb. 6 .199584 11 5.19 26 47.3 4.18 0.36 5.35 28 1 43.12 9.8 7 .190352 11 48.59 26 38.7 4.14 0.35 5.30 96 1 34.56 9.4 9 .115989 1393.00 96 96.7 4.06 0.35 5.19 98 1 92.64 8.9 13 .107584 17 1.76 26 18.7 3.90 0.33 4.99 98 1 14.80 8.9 18 .101565 90 10.29 26 29.1 3.79 0.39 4.85 96 1 18.31 8.2 31 .099035 26 6.98 96 33.0 3.61 0.31 4.63 96 1 28.39 8.9 ft .090193 —527 24.99 +96 32.9 —3.58 0.31 4.58 + 26 1 29.32 +9.0 I \C OBSERVATIONS COMPARED WITH EPIIEMERIS. MARS I. Computation of the Cape Equatorial Observations. Itau. WMh. M.T. 11 dec. of d.jr. T»b. 0. T*,.«J. Ptnlluin 8. Bcmid. Conp'd d. Ad. a. 3. k. m. t. • // i M «. ii • In H 1849.-NOT. 91 .StTOM (91 31.91 +95 17 110.0 + 11.80 0.50 7.53 + 35 17 31.8 + 18.9 .StTOB 91 38.93 1720.0 11.80 0.50 7.53 17 31.8 90.0 • .3(3335 90 41.89 9057.7 11.81 0.50 7.57 91 9.5 19.9 • .339573 1849.88 37 43.6 19.07 0.51 7.66 97 55.7 19.9 • .317405 17 48.48 31 7.3 12.15 0.51 7.89 31 19.4 90.0 .317406 17 48.46 31 7.9 19.15 0.51 7.69 31 19.4 19.9 ai .339091 16 41.33 34 36.8 12.15 0.53 7.73 34 48.9 18.6 97 .30209* 15 34.59 37 52.8 12.27 0.52 7.77 38 5.1 90.7 98 .997948 14 95.96 41 13.6 12.33 0.53 7.80 41 36.0 90.1 99 .339101 13 4.11 44 39.6 13.35 0.59 7.83 44 51.8 18.8 30 .918041 11 41.81 47 43.4 13.35 0.53 7.86 47 55.7 18.5 DM. 1 .290395 10 38.76 51 0.9 12.49 0.53 7.89 51 12.7 19.8 9 .344399 857.43 54 18.7 12.36 0.53 7.99 54 31.0 18.7 .285150 735.13 9557 11.5 12.56 0.53 7.94 35 57 94.1 91.9 .981180 6 5.50 96 0 9.4 12.63 0.53 7.98 28 022.0 90.1 .871798 4 33.84 3 0.6 12.65 0.53 7.98 3 13.2 90.4 .981303 2 58.33 5 48.8 12.69 0.53 7.99 « 1.5 90.5 .983713 6 1 23.22 8 25.7 13.71 0.53 8.00 8 38.5 18.8 8 .978387 5 5943.08 11 0.5 12.73 0.53 8.0* 11 13.2 90.0 9 .383533 58 S.17 13 35.9 19.79 0.53 8.09 1338.6 19.3 .281321 58 9.39 1395.6 19.73 0.53 8.03 1338.3 19.4 10 .397447 56 15.79 15 48.3 13.30 0.54 8.03 16 0.6 18.8 11 .977988 54 37.74 17 49.9 12.73 0.54 8.03 18 9.6 19 4 14 .947448 49 96.94 23 17.5 12.77 0.53 8.03 33 30.3 17.9 IS .930645 47 43.16 94 47.7 13.75 0.53 8.01 35 0.4 17.9 18 .925483 45 56.74 38 9.9 12.73 0.53 8.00 9699.6 16.1 .958580 45 53.23 36 12.5 12.70 0.53 8.00 3835.2 17.5 17 .989808 44 7.00 27 25.6 12.63 0.53 7.98 9738.9 17.9 18 .950996 4232.89 2.-* 2*. I 12.65 0.53 7.96 98 40.8 17.6 90 .998819 39 56.40 30 5.5 12.69 0.53 7.99 30 18.7 19.0 91 .957980 37 10.63 30 42.0 12.49 0.53 7.89 30 54.4 18.8 • .941959 3530.69 31 8.9 19.46 0.59 7.88 31 30.7 18.3 93 .307919 33 53.99 31 95.9 12.49 0.53 7.83 31 38.4 17.7 94 .947781 32 11.60 31 36.3 12.94 0.53 7.80 31 48.5 17.9 • .188950 30 40.97 31 38.3 13.36 0.53 7.78 31 50.7 18.9 .907*14 30 38.97 31 38.3 12.38 0.59 7.76 31 50.7 18.7 • .169408 99 8.09 31 33.3 13.33 11.52 7.73 31 45.5 18.5 .909037 99 5.04 31 33.0 13.33 0.52 7.73 31 45.3 17.3 • .1811040 9436.69 30 38.3 19.13 0.51 7.61 3048.5 18.9 IMO.-Ju. 7 .176894 13 43.91 93 33.9 11.31 0.48 7.13 233S.9 16.4 8 .183809 12 47.37 S3 91.2 11.18 0.47 7.07 92 32.4 15.6 9 .149911 11 66.55 91 19.9 11.16 0.47 7.01 91 31.1 17.1 10 .150057 11 7.41 90 15.6 11.06 0.46 .95 9096.7 15.0 11 .159838 1091.51 19 10.4 10.93 0.46 .89 1931.3 15.9 19 .183840 9 39.59 18 5.5 10.81 0.46 .83 18 18.3 15.4 14 .149789 897.48 15 59.1 10.64 0.45 .71 16 9.7 14.9 15 130468 7 57.34 14 57.9 16.57 0.44 .64 15 8.5 15.5 it .150497 799.66 1355.7 10.43 0.44 .58 14 8.4 14.6 17 .197705 5 7 6.73 +96 19 57.8 + 10.37 0.43 .59 + 96 13 8.9 + 13.9 OBSEKVAT1ONS COMPARED \VITI1 EPH1MERIS. CXC1 MARS I. Computation for Cape Meridian Observations. Dale. Wash. M.T. in dec. of day. Tabular. Paralla* in 0 Semid in S. Def. ill. Computed. A a. Ad. a. 8. a. 8. a. 8. h. m. ». o / // n a 8. /t A. m. t. « / // f. it 1849,-Nov. 18 .340171 6 33 46.16 +25 7 15.4 +11.63 7.40 0.05 0.00 6 23 46.13 +35 7 27.03 —1.91 +19.03 19 .336981 33 6.35 10 37.1 11.71 7.44 0.05 0.00 23 6.23 10 48.81 1.91 18.59 21 .330466 21 35.07 17 34.8 11.86 7.53 0.04 0.00 21 35.05 17 36.66 1.79 19.53 • .327144 20 44.06 20 50.1 11.94 7.57 0.04 0.00 20 44.04 21 2.04 15.28 34 .320367 18 50.50 37 41.8 13.08 7.65 0.03 0.00 18 50.48 27 53.88 (1.03) (37.63) 25 .316937 17 48.47 31 7.2 12.15 7.69 0.03 0.00 17 48.45 31 19.35 24.08 37 .309915 15 34.03 37 54.5 12.27 7.77 0.03 0.00 15 34.02 38 6.77 1.69 19.15 28 .306351 14 21.80 41 15.4 12.33 7.80 0.02 0.00 14 21.79 41 27.73 1.69 19.31 29 .302750 13 6.37 44 33.8 12.39 7.83 0.02 0.00 13 6.36 44 46.19 18.68 30 .399113 11 47.84 47 49.3 12.45 7.86 0.03 0.00 11 47.83 48 1.75 1.63 21.62 Doc. 1 .395443 10 26.32 51 1.3 13.50 7.89 0.02 0.00 10 26.31 51 13.80 21.27 a .291741 9 1.96 54 9.0 13.54 7.91 0.02 0.00 9 1.85 54 21.54 1.96 18.81 a .28MKJ6 7 34.87 35 57 12.1 12.59 7.94 0.02 0.00 7 34.86 35 57 24.69 19.89 4 .384343 6 5.31 26 0 9.9 12.62 7.96 0.01 0.00 6 5.20 26 0 22.52 17.84 8 .376639 2 58.77 5 48.0 12.69 7.99 0.01 0.00 2 58.76 6 .0.69 19.73 7 .373786 6 1 22 33 827.3 12.73 8.00 0.01 0.00 6 1 32.33 839.92 18.39 8 .388931 5 59 44.03 10 59.1 13.74 8.01 0.01 0.00 5 59 44.03 11 11.84 18.76 • .185037 58 4.05 13 93.5 12.76 8.03 0.01 0.00 58 4.05 13 36.26 17.52 10 .381138 56 22.60 15 39.6 13.77 8.03 0.01 0.00 56 22.60 15 52.37 2.45 20.67 11 .357318 54 39.89 17 47.5 13 78 8.03 0.00 0.00 54 39.89 18 0.28 2.11 20.20 1* .953393 52 56.13 19 48.4 13.78 8.03 0.00 0.00 52 56.13 19 59.18 2.23 20.40 14 .345410 49 26 46 33 17.3 12.77 8.03 0.00 0.00 49 26.46 23 30.07 • 2.28 18.32 IS .341481 47 41.01 34 48.8 12.76 8.01 0.00 o.oo 47 41.01 25 1.56 2.13 15.94 16 .837513 45 55.47 26 11.0 12.74 8.00 0.00 0.00 45 55.47 26 23.74 2.13 17.31 17 .333566 44 10.07 27 23.7 13.73 7.99 0.00 0.00 44 10.07 27 36.42 2.16 12.86 18 .339623 42 25.05 28 26.9 12.69 7.97 0.00 1) (III 42 25.05 28 39.59 2.11 16.95 20 .331761 38 57.15 30 5.3 12.63 7.93 0.00 0.00 38 57.15 30 17.83 2.07 17.54 31 .317849 37 14.66 31) 40.9 13.59 7.89 0.00 0.00 37 14.66 30 53.49 2.14 17.03 93 .313950 35 33.45 31 7.7 13.54 7.86 0.00 0.00 35 33.45 31 20.24 17.11 33 .210066 33 53.71 31 26.0 13.49 7.83 0.00 o.oo 33 53.71 31 38.49 1.88 17.93 34 .306303 32 15.65 31 36.1 13.44 7. BO 0.00 c.oo 32 15.65 31 48.54 1.99 19.25 28 .198547 39 5.36 31 33. 1 13,32 7.73 0.01 0.00 39 5.36 31 45.42 1.85 18.35 37 .194754 27 33.44 31 20.8 13.26 7.69 0.01 0.00 27 33.44 33 33.06 1.72 17.11 • .187356 34 36.78 30 36.5 13.12 7.61 0.01 0.00 24 36.79 30 48.62 1.94 17.20 31 .179190 21 50.67 29 29.0 11.96 7.51 0.01 0.00 21 50.68 29 40.% 2.37 17.26 1850,-Ju. 3 .169063 18 3.37 27 12.8 11.71 7.35 0.02 0.00 18 3.38 27 24.51 1.89 14.03 4 .165529 16 53.84 26 19.9 11.63 7.30 0.03 0.00 16 53.85 26 31.53 1.81 13.46 7 .155159 1345.16 23 25.2 11.35 7.13 0.02 0.00 1345.17 23 36.55 1.80 17.30 8 .151781 12 49.11 22 23.1 11.36 7.U7 0.02 0.00 12 49.12 22 34.36 1.74 16.13 9 .148444 11 56.80 31 19.9 11.16 7.01 0.03 0.00 11 56.61 21 31.06 1.72 11.97 10 .145148 11 7.65 30 15.9 11.06 6.95 0.03 0.00 11 7.66 3026.96 1.65 12.55 11 .141893 10 22.30 19 11.5 10.97 6.89 0.03 0.00 10 22.31 19 22.47 1.60 14.23 19 .138681 9 40.59 18 7.3 10.87 6.83 0.03 0.00 9 40.60 18 18.07 1.62 13.10 14 .132383 8 28 13 16 0.1 10.67 6.71 0.03 0.00 8 28.15 16 10.77 1.56 12.80 15 .129291 7 57.38 14 58.1 10.57 6.64 0.03 o.oo 7 67.40 15 8.67 0.95 12.68 16 .126255 7 30.29 13 57.3 10.47 6.58 0.04 0.00 7 30.31 14 7.77 —1.60 12.96 17 .133254 5 7 6.83 +26 12 58.1 +10.37 6.53 0.04 0.00 5 7 6.85 +26 13 10.47 +13.35 CX OBSERVATIONS COMPARED WITH KI'IIKMERJS. MARS I. Computation of observations with the Cambridge Equatorial. Daw. Wub. M.T. i. dee. of da/. Tab. 0. Tab. d. Parallax to 3. Bemld. Obi. part. Comp'd 8. Ai. a. i. A. m. t. • i n II l. n • / // n 1849—Nor. 14 .619(00 6 95 41.34 +94 55 1.7 -3.K5 0.48 7.99 C. +94 54 57.7 +19.8 13 .731601 6 95 19.91 94 58 39.7 S.S1 Mi 7.98 N. 94 5f> 41.5 17.5 .VMM 6 95 11.98 94 58 41.4 5.70 0.49 7.98 8. 94 5198.5 30.6 It .439696 f 94 51.69 95 056.9 5.83 0.49 7.31 0. 25 051.1 19.1 .719049 694 41.40 95 9 1.9 C.19 0.49 7.33 8. 95 1 47.7 19.9 tl .4MM 8 91 98.99 95 17 50.9 5.31 0.50 7.54 C. 95 17 44.9 19.8 .741577 6 91 9.86 95 18 49.4 8.11 0.50 7.55 0. 95 18 43.3 90.5 • MM 6 16 19.70 35 36 9.0 7.10 0.59 7.75 8. 95 35 47.1 20.5 30 .743146 6 11 11.88 25 49 15.3 7.09 0.59 7.87 C. 35 49 8.3 19.6 Dee. 6 .765770 6 9 11.69 96 7 7.1 8.69 0.53 8.00 0. 96 6 58.5 11 .997944 5 54 35.66 96 17 59.4 7.61 0.54 8.03 0. 96 17 44.8 18.8 19 .330519 5 5947.11 96 19 56.4 6.34 0.54 8.03 N. 96 IB 58.1 17 .333503 5 43 58.51 26 97 30.4 5.93 0.53 7.98 N. 36 27 33.4 18.1 IB .368690 5 49 10.44 96 38 34.9 5.05 0.53 7.96 8. 26 28 21.9 91 .340696 5 37 9.10 96 3044.6 5.33 0.53 7.89 8. 96 30 31.4 97 .399415 59791.19 36 31 18.5 5 06 0.51 7.69 N. 26 31 91.1 16.9 Dec. 98 .985495 5 95 55.99 96 30 59.5 5.80 0.51 7.65 8. 36 30 46.0 13.4 .345703 S95 50.16 36 30 58.1 4.57 0.51 7.65 C. 36 30 53.5 14.4 99 .791918 5 93 51.18 96 30 20.4 9.43 0.51 7.58 N. 36 30 18.6 (10.0) 31 .457303 5 91 98.43 26 29 18.1 3.80 0.50 7.50 8. 96 99 6.8 16.9 1SSO.— Jan. 1 .281197 5 20 93.71 96 38 43.7 S.44 0.50 7.45 S. 26 98 30.8 18.0 4 .968356 5 16 46.85 96 (6 14.2 5.36 0.49 7.99 N. 36 96 16.1 15.9 5 .388.180 5 15 39.97 96 25 11.0 3.65 0.48 7.93 0. 36 35 7.3 +15.8 8 .954967 5 14 38.75 96 94 IB. 9 5.49 0.48 7.18 8. 36 34 7.3 10 .979399 A 11 1.33 +26 30 7.3 —4.57 0.46 6.94 8. +26 19 55.8 OBSERVATIONS COMPARED WITH EPHEMERIS. CXC111 MARS I. Computation for Athens Meridian Observations. Date. Wash. M.T. in dec. of day. Tabular O. Parallax. Semid. Def. ill. Comp. O , to 1849 Nov. 22 .312581 +25 20 47.2 +3.04 7.57 0.00 +25 20 42.7 +28.1 23 .309-213 25 24 12.9 3 04 7.61 0.00 25 24 23.5 23.3 25 .302362 25 31 4.2 3.05 7.65 0.00 25 31 14.9 33.9 36 .29S877 25 34 28.5 3.05 7.69 0.00 35 34 23.9 28.2 38 .291794 35 41 12.4 3.05 7.77 0.00 25 41 7.7 28.5 29 .288183 35 44 30.9 3.05 7.80 0.00 25 44 41.7 23.1 30 .284549 25 47 46.4 3.04 7.85 0.00 25 47 38.6 24.4 Dec. 4 .269675 36 0 7.4 3.03 7.95 0.00 26 0 2.5 26.8 9 .250475 36 13 21.2 3.00 8.02 0.00 36 13 32.2 23.7 14 .230845 26 23 15.9 2.96 8.02 0.00 28 23 10.1 27.5 15 .226897 26 24 47.5 2.95 8.01 0.00 26 24 58.5 23.2 16 .22-3951 26 26 9.7 2.94 8.00 0.00 26 26 4.6 26.8 17 .219005 28 27 22.6 3.93 7.99 0.01 / 26 27 33.5 22.8 19 .211193 26 29 20.0 3.90 7.95 0.00 26 29 30.8 23.0 21 .203287 26 30 40.4 2.88 7.89 0.00 26 30 51.3 93.0 33 .199387 36 31 7.3 2.87 7.86 0.00 36 31 2.3 35.2 33 .195498 26 31 25.8 9.86 7.83 0.00 26 31 36.5 33.1 94 .191643 36 31 36.0 9.84 7.80 0.00 26 31 31.0 35.5 38 .176424 36 31 2.0 9.79 7.6S 0.00 26 30 57.1 25.3 29 .173066 36 30 36.8 2.77 7.61 0.00 26 30 47.2 31.4 1850.— Jan. 1 .161678 26 28 48.9 2.73 7.51 0.00 26 28 59.3 31.8 9 .158087 26 28 3.0 2.71 7.46 0.00 26 27 58.2 94.3 3 .154491 26 27 13.6 3.70 7.35 o.oo 26 27 23.6 17.9 5 .117465 26 25 34.9 9.66 7.24 0.00 26 25 34.8 17.6 6 .144005 26 24 36.5 9.64 7.19 0.00 26 24 21.9 31.8 8 .137210 26 33 34.1 9.61 7.07 0.00 26 22 19.6 32.4 10 .130579 26 20 16.9 3.57 6.95 0.00 26 20 12.5 33.3 15 .114733 26 15 58.9 9.48 6.64 0.00 26 16 8.0 18.4 19 .102813 26 11 6.6 9.40 6.40 0.00 36 11 15.4 16.5 26 .0835C7 36 5 49.6 9.36 5.98 0.00 36 5 45.9 18.9 27 .080903 36 5 15.0 3.24 5.92 0.00 36 5 23.2 13.9 29 .075811 96 4 13.9 2.19 5.80 0.00 36 4 21.9 15.1 Feb. 1 .068426 96 3 1.6 2.13 5.63 0.00 26 2 £8.1 17.4 3 .066041 36 2 42.6 2.11 5.57 0.00 26 3 39.1 20.5 3 .063681 36 3 35.6 9.09 5.51 0.00 36 3 33.3 14.0 4 .061354 26 9 11.0 2.07 5.46 0.00 26 2 7.6 18.6 5 .059063 36 1 58.4 9.05 5.40 0.00 36 2 5.8 13.6 10 .048044 +26 1 33.1 +1.95 5.35 0.00 +28 1 19.7 +15.6 CX.1V OB8KKVATIOXS COMPARED WITH KPHEMERIS. II. SECOND OPPOSITION OF MARS. MA IIS II. Computation for Santiago Equatorial Observations. Date. Wa»h. M.T. in dec. ol da) . Tab. a. Tab. 3. Parallax. Semidlaneter in Del. III. Otw'd part Coup. O. AS. a. d. a. d. A. m. i. • t n «. n i. n •. • 1 H a IHI.— DM. 16 .567110 9 9 99.78 + 18 44 35.7 +0.94 +8.46 0.39 9.99 0.09 0. + 1944 44.3 + 19.6 .01036S '.< yj.i.:\ 44 4.1.9 .08 8.66 0.39 5.92 .09 0. 41 51.9 90.8 ID .550150 9 8.63 54 19.8 .37 8.63 0.40 6.06 .09 c. 54 38 4 9U.7 .580303 9 8.96 54S6.3 .16 8.81 0.40 6.06 M c. 94 3J.1 90.9 .S97SM 9 8.05 54 30.0 .08 8.88 0.40 6.06 .09 0. 54 33.9 90.5 90 .558789 854.73 19 58 6.1 .33 8.78 0.41 6.11 .03 8. 19 58 8.8 93.3 SI .55*871 837.65 90 9 3.4 .34 8.83 0.41 6.15 .03 8. 90 9 6.1 91.9 93 .546569 8 17.18 6 14.4 .26 8.88 0.41 6.90 .03 8. 6 17.1 90.9 11 .581977 7 95.34 1535.9 .18 9.17 0.49 6.39 .03 8. 1598.1 21.1 H .900700 6 54.49 90 18.9 .17 9.96 0.49 6.33 .03 8. 90 91.1 90.4 M .5J9457 6 -Jl.viJ 95 11.8 .39 9.13 0.43 6.38 .03 8. 95 17.6 99.1 .573891 6 18.69 •-•:. -.•- : .10 9.40 0.43 6.38 .03 8. 95 31.7 99.4 H .537696 543.33 30 36.1 .34 9.30 0.43 6.43 .03 8. 30 39.0 93.9 • .5447<* 5 1.95 36 9.4 .20 9.44 0.43 6.46 .01 c. 36 18 8 91.1 • .533539 4 18.46 41 44.7 .38 9.38 0.43 6.51 .01 0. 41 54.1 90.4 30 .523690 3 30.71 47 38.3 .97 9.48 0.44 6 55 .01 0. 47 47.8 18.7 31 .516795 S 40.03 53 40.0 .38 9.51 0.44 6.59 .01 c. 90 53 49.6 19.4 18S8-J.O. 1 .530433 1 45.95 90 59 59.5 .91 9.79 0.44 6.63 .00 0. 91 0 9.9 19.5 a .513690 9 0 48.33 91 6 16.8 .37 9.63 0.44 6.66 .00 0. 6 96.5 93.0 4 .507919 8 S3 44.18 19 37.9 .37 9.83 0.49 6.74 .00 0. 19 37.0 18.7 S .513969 57 36 99 26 17.4 .23 9.95 0.49 6.77 .00 c. 36 37.3 31.8 6 .519886 56 98.54 33 14.8 .19 10.09 0.45 6.81 .00 c. 33 24.9 90.6 7 .509735 55 14.47 40 10.8 .32 10.10 0.46 6.84 .00 c. 40 30.9 93.8 e .470027 54 1.91 48 59.0 .38 y.8i 0.46 6.88 .00 c. 47 88 91.6 .590396 5358.03 4790.5 .15 10.35 0.46 6.87 .00 0. 47 30.8 91.1 9 .S00697 S3 41.93 91 54 91.4 .93 10.30 0.46 6.90 .00 c. 31 54 31.6 91.9 10 .500841 51 90.30 99 1 33.7 .91 10.28 0.46 6.93 .00 c. 99 1 44.0 30.6 11 .580036 49 55.96 8 56.6 .11 10.45 0.46 6.94 .00 0. 9 7.0 90.6 19 .478583 48 33.03 1554.4 .38 10.96 0.46 6.96 .00 c. 16 4.7 19.4 .591979 4890.94 16 13.3 .US 10.53 0.46 6.96 00 c. 16 33.8 19.0 13 .503665 47 976 3331.4 .15 10.51 0.47 6.98 .00 c. 33 31.9 19.7 M .4W948 4533.83 30 30.9 .30 10.49 0.47 7.00 .00 c. 30 41.4 91.7 16 .474718 4999.34 44 49.4 .33 10.51 0.47 7.03 .00 c. 44 59.9 19.8 17 .464911 40 54.85 9951 59.6 .96 10.49 0.47 7.04 .00 c. 99 59 3.1 90.1 90 .456899 36 1.37 93 19 41.3 + .94 10.61 0.47 7.06 .00 0. 33 19 59.0 90.0 .511188 3356.17 13 9.6 — .09 10.81 0.47 7.07 .00 c. 13 13.5 19.9 21 .438J55 34 93.49 19 16.5 + .39 10.47 0.47 7.07 .00 c. 19 37.0 91.8 • .483709 3-3 38.39 96 9.3 M 10.89 0.47 7.07 .00 c. 28 30.3 if.o S3 .476347 305805 32 3-J.l .10 10.83 0.47 7.06 .00 c. 33 43.9 19.9 94 .473899 99 17.07 38 47.0 .09 10.83 0.47 7.06 .00 c. 38 57.8 19.9 ss .440744 97 39.90 44 40.9 .33 10.66 0.47 7.05 .00 c. 44 50.9 17.0 n .4W978 94 17.06 9356 18.1 .17 10.74 0.47 7.03 .00 0. S3 5638.8 19.1 •.- .456985 9*39.80 94 1 51.0 .10 10.80 0.47 7.01 .00 0. 94 9 1.8 17.1 • .460799 9096.49 7 8.4 .06 10.80 0.47 6.99 .00 0. 7 19.9 30 .463149 19 18.15 19 11.9 .03 10.79 0.46 6.97 .00 c. 1999.7 15.1 31 .4573H 17 41.80 16 59.9 .01 10.77 0.46 6.95 .00 c. 17 10.0 15.9 Fob. 1 .418346 16 9.47 9< 33.6 .91 10.99 0.46 6.93 .00 c. 31 34.9 16.1 * .451873 14 33.84 95 53.0 + .03 10.71 0.46 6.91 .00 c. 06 3.7 15.5 3 .469467 19 59.97 30 3.1 — .08 10.66 0.46 6.88 .00 0. 30 13.8 16.4 7 .416(67 7 14.84 43 48.3 + .H 10.46 0.45 6.7S M 0. 4358.8 16.3 8 .3)6496 554.76 46 37.8 .17 10.34 0.49 6.71 .00 0. 46 48.1 14.4 * .393666 4 36.19 49 15.1 + .18 10.98 0.44 6.67 .01 0. 4995.4 14.4 .409760 4 30.83 49 95.4 - .15 10.31 0.44 6.67 .01 0. 49 35.7 14.1 10 .411493 3 18.55 .'.1 40.9 + .08 10.39 0 44 6.63 .01 0. 51 51.3 14.5 11 .409679 9 5.71 53 48.5 + .10 10.95 0.44 6.99 .01 0. 5398.7 13.9 .453969 8 9 9 03 53 54.7 — .14 10.91 0.44 6.59 .01 0. 54 5.0 13.6 H .3M* 7 99 47.96 +94 97 93.9 +0.10 +10.19 0.43 6.51 0.01 0. +94 97 33.0 + 13.9 OBSERVATIONS COMPARED WITH EPHEMERIS. Computation for Santiago Equatorial Observations — Continued. CXCV Date. Wash. M.T. in dec. of day. Tab. a. Tab. 8. Parallax. Semidianteter in Def. ill. Obs'd part. Comp. 0. Ad. a. 3. a.. 3. A. m. 5. « / ;/ s. n i. n t. * 1 11 it 1852.— Feb. 13 .443044 7 59 44.79 +24 57 27.3 —0.12 +10.10 0.43 6.51 0.01 C. +24 57 37.4 +13.1 14 .404918 58 42.74 24 58 50.4 + .04 10.09 0.43 6.46 .01 C. 24 59 0.5 14.4 15 .370468 57 43.63 35 0 1.1 .18 9.90 0.43 6.42 .01 C. 25 0 11.0 14.0 18 .387076 56 44.08 1 2.1 .09 9.93 0.42 6.37 .01 C. 1 13.0 13.2 17 .365869 55 49.13 1 49.0 .08 9.86 0.42 6.33 .01 0. 1 58.9 12.7 19 .368313 54 9.90 2 44.5 .13 9.67 0.42 6.23 .01 C. 2 54.2 10.8 20 .368193 53 24.90 3 54.2 .11 9.61 0.41 6.19 .01 C. 3 3.8 10.9 21 .3739JO 58 43.07 2 52.1 .07 9.57 0.41 6.14 .01 C. 3 1.7 10.8 22 .356132 52 5.60 2 38.8 .13 9.44 0.41 6.09 .01 C. 3 43.3 10.6 23 .350987 51 31.03 2 14.3 .14 9.35 0.40 6.04 .01 0. 2 23.6 10.1 24 .346851 51) 59. M 1 39.0 .14 9.27 0.40 5.99 .01 C. 1 48.3 10.4 25 .349256 50 31.93 25 0 52.8 .13 9.21 0.40 5.94 .01 C. 1 2.0 11.4 26 .348459 50 7.53 24 59 56.5 + -H 9.14 0.39 5.89 .01 0. 25 0 5.6 11.6 27 28 .397964 .329031 49 45.57 49 29.23 58 46.8 57 35 9 — .11 + .16 9.06 8.92 0.39 0.39 5.84 5.79 01 .of 0. C. 24 58 55.9 57 44.8 9.9 10.4 .384230 49 28.34 57 31.5 — .06 9.03 0.39 5.79 .01 0. 57 40.5 9.6 29 .3-20987 49 15.00 56 11.5 + .18 8.81 0.38 5.74 .01 C. 56 20.3 9.7 Much 1 .328774 49 3.91 54 38.5 .14 8.79 0.38 5.69 .01 C. 54 45.3 10.3 2 .337017 48 56.16 52 5-2.5 .09 8.76 0.38 5.64 .01 0. 53 1.3 10.8 3 .317069 4851.77 51 3.1 .16 8.60 0.37 5.59 .02 0. 51 11.7 11.6 4 .334693 48 50.47 49 0.8 .08 8.61 0.37 5.54 .02 0. 49 9.4 8.1 6 .341147 48 57.63 44 35.1 .03 8.47 0.36 5.41 .03 C. 44 43.6 9.0 7 .324551 49 5 38 43 13.4 .11 8.34 0.36 5.39 .02 C. 42 31.7 7.5 8 .327363 49 16.46 39 41.3 .06 8.30 0.36 5.34 .02 C. 39 49.6 8.4 9 .319176 49 30.34 37 3.4 .08 8.31 0.35 5.30 .02 0. 37 11.6 8.6 10 .303105 49 46.96 34 19.6 .13 8.08 0.35 5.25 .02 C. 34 27.7 10.0 11 .322512 50 7.10 31 32.7 .05 8.07 0.35 5.30 .02 C. 31 30.8 4.9 12 .2890(6 50 2S. 91 3838.3 .16 7.88 0.34 5.16 .02 0. 28 36.1 6.1 .327335 50 29.8-2 38 21.3 .03 8.00 0.34 5.15 .03 C. 28 29.2 6.4 13 .311109 50 54.68 35 16.6 .07 7.80 0.34 5.11 .03 0. 2524.5 6.6 14 .315716 51 22.98 92 1.1 .05 7.84 0.34 5.06 .03 0. 22 9.0 5.8 IS .312831 7 51 53.63 +24 18 40 6 +0.05 + 7.77 0.33 5.02 0.03 C. +24 18 48.4 + 6.7 I- XC VI OBSERVATIONS COMPABED WITH KI'HEMEHIS. MARA II. Computation for Santiago Meridian Observations. D»tt. Wm.h. M.T. in dec. or day. Tabular Parallax. Bemid. Def. ill. Camp. 0. J3. a. 8. a. d. a. 0. A. m. i. • i a n i. n i. II • / n n ItBl.-Dec. 19 .618077 9 9 7.80 + 19 54 34.5 + 8.89 0.43 6.06 0.09 0.03 + 19 54 37.4 + 82.9 91 .612255 8 36.59 90 9 18.0 9.04 .44 6.15 .03 .09 SO 2 30.9 93.4 • .600*84 8 15.79 6 30.7 9.19 .44 6.30 .09 .09 6 33.6 23.9 94 .603229 794.13 15 37.0 9.97 .45 6.99 .02 .03 15 40.0 91.3 n 600144 r. :,:'.•. n 90 30.0 9.35 .45 6.33 .0) .03 90 33.0 25.3 98 .597016 6 18.85 9.1 36.0 9.49 .46 6.38 .C9 .09 25 39.1 93.1 97 .593859 9 41.11 30 54.4 9.50 .46 6.49 .09 .03 30 57.5 93.5 SB .380643 4 59.99 36 24 8 9.57 .46 6.46 .02 .02 36 3i.O 93.9 30 .SWIM 3 97.71 48 0.0 9.72 .47 6.55 .09 .01 48 3.9 90.9 31 ,>< Mi 9 36.63 20 54 3.7 9.60 .47 6.59 .03 .01 20 54 7.C 90.0 18S1.— Jan. .577444 1 49.30 21 0 17.3 9.87 .47 6.63 .»J .00 21 0 33.9 12.8 .574037 9 0 44.75 6 40.9 9.94 .48 6.66 g.03 .00 6 56.8 18.7 .567141 858 40.26 19 51.4 10.07 .48 6.74 .03 .00 £0 8.3 17.9 .563637 57 33.44 26 36.9 10.14 .49 6.77 .03 .00 96 55 9 25.5 .560114 56 93.53 33 31.6 10.30 .49 0.81 .03 .00 33 35.0 21.6 7 .556539 55 10.98 40 30.6 10.97 .49 (.84 .01 .00 40 34.0 91.8 8 .553929 53 55.63 47 34.5 10.33 .49 6.87 .01 .00 47 51.7 90.5 9 .549313 52 37.35 21 54 49.3 10.3H .50 6.90 .01 .00 91 54 45.8 21.7 10 MSOI 51 16.61 22 1 53.9 10.43 .50 6.93 .01 .00 22 9 10.5 90.1 11 .541960 49 63.39 V 6.9 10.49 .50 6.94 .01 .00 9 23.6 18.0 19 .533337 4897.81 16 20.4 10.54 .50 6.96 .01 .00 16 24.0 91.5 13 .534483 47 0.00 2334.8 10.59 .50 6.98 .01 .00 23 52.4 17.2 14 .5311728 4530.11 30 48.7 10.63 .51 7.00 .01 .00 30 59.1 91.9 IS .596934 43 58.30 38 0.8 10.67 .51 7.02 .01 .00 38 18.5 17.9 16 .523128 43 34.74 45 10.1 10.71 .51 7.03 .00 .00 45 13.8 17.S 17 .519385 40 49.02 53 15.8 10.73 .51 7.05 .00 .00 52 33.6 16.6 18 .515455 39 13.06 29 59 16.8 10.76 .51 7.06 .00 .00 23 59 20.5 91.7 19 .511581 37 35.29 93 6 19.3 10.79 .51 7.06 .00 .00 33 6 30.1 S3. 8 90 .507730 35 56.50 13 1.3 10.81 .51 7.07 .00 .00 13 19.2 16.0 91 .503830 34 16.70 19 42.6 10.83 .51 7.07 .CO .00 20 0.5 16.0 93 .499983 32 36.69 26 15.7 10.84 .51 7.07 .00 .00 26 19.5 33.1 S3 .496053 30 56. OS 32 39.6 10 85 .51 7.06 .00 .00 39 57.5 14.3 94 .493171 29 15.21 38 53.8 10. as .51 7.06 .00 .01 38 57.6 16.5 • .488917 97 34.40 44 57.2 10.85 .51 7.05 .CO .01 45 15.1 14.9 97 .480487 24 13.69 56 29.5 10.84 .51 7.03 .00 .01 23 56 47.4 13.4 98 .476629 22 34.07 24 1 57.4 10.83 .51 7.01 .00 .01 24 3 1.9 19.8 28 .472735 2055.39 7 19.1 10.80 .51 6.99 .00 .01 729.9 17.9 30 .466891 19 17.58 12 13.6 10.79 .51 6.97 .00 .01 19 17.S 14.6 31 .465033 17 41.07 17 1.4 10.77 .51 6.95 .00 .01 17 19.1 13.7 Feb. 1 .461314 16 5 92 91 35.0 10.74 .51 6.93 .00 .03 21 38.8 14.4 9 .457393 14 33.33 9551.4 10.71 .51 6.91 .00 .03 26 12.0 13.5 3 .453616 13 0.43 29 59.3 10.67 .50 6.88 .00 .03 30 3.2 9.9 4 .449F33 11 30.40 33 49.7 10.64 .50 6.85 .00 .03 34 7.9 15.1 7 . 431*72 7 12.99 43 53.3 10.49 .50 6.75 .00 .03 43 56.1 16.4 8 .435013 551.85 46 43.9 10 44 .49 6.71 .01 .03 4647.7 14.9 • .431360 4 33.47 49 20.8 10.39 .49 6.67 .01 .03 49 37.9 13.9 10 .497774 3 17.33 51 43.2 10.33 .49 6.63 •01 .03 51 40.9 14.5 11 .494185 8 2 4.17 53 51.1 10.97 .49 6.59 .01 .03 54 8.0 19.7 13 .417137 7 59 46.50 5794 9 10.15 .48 6.51 .01 .03 57 41.6 14.8 14 .413661 58 43.19 94 58 51.1 10. C8 .48 6.46 .01 .03 24 59 7.7 15.1 16 .410994 57 40.98 93 0 3.7 10.01 .47 6.42 .03 .03 35 090.9 13.6 16 .406836 50 49.97 1 3.9 9.94 .47 6.37 .03 .03 1 6.8 11.9 17 .403463 55 48.19 1 49.7 (.87 .47 6.33 .03 .03 9 5.9 11.9 18 .400148 M 56.71 9 33.4 9.80 .46 Ml .09 .03 9 27.0 12.4 H .396866 54 8.56 9 44.8 9.79 .46 6.93 .09 .03 3 0.8 7.5 90 .993619 5393.80 954.3 9.65 .46 8.18 .03 .03 2 57.8 10.7 ai .3B03B5 7 M 42.49 + 95 9 59.0 + 0.57 .45 6.14 0.03 0.03 + 25 3 7.7 + 9.7 OBSERVATIONS COMPARED WITH EPHEMERIS. Computation for Santiago Meridian Observations — Continued. CXCVll Date. Wash. M.T. in dec. of day. Tabular Parallax. Semid. Def. ill. Comp. 0. Ad. a. S. a. 8. a. d. A. m. s. 0 ; ft n if X. _ * i n n 1852.— Feb. 22 .387222 7 52 4.46 + 25 2 38.2 + 9.49 0.45 6.09 0.03 0.03 + 25 2 53.8 + 9.9 23 .384098 51 29.94 2 13.3 9.41' .45 6.04 .03 .03 a 28.7 10.8 24 .381020 50 58.84 1 37.6 9.33 .44 5.99 .03 .03 1 40.9 12.7 25 .377959 SO 31.18 25 0 51.4 9.25 .44 5.94 .03 .03 25 1 6.6 6.5 26 .374957 50 6.93 24 59 54.9 9.17 .43 5.89 .04 .03 24 59 58.2 10.7 27 .371975 49 46.07 58 48.6 9.09 .43 5.84 .04 .03 59 3.5 8.7 £8 .369056 49 28.58 57 32.7 9.01 .43 5.79 .04 .03 57 35.9 11.4 29 .366147 49 14.43 56 7.4 8.93 .42 5.71 .04 .03 56 22.1 1.0 March 1 .363303 49 3.59 54 33.1 8.85 .42 5.G9 .04 .03 54 30.3 12.6 9 .360479 48 56.02 52 50.0 8.77 .42 £.64 .04 .03 53 4.5 3.0 3 .357697 48 51 67 50 58.4 8.69 .41 5.59 .04 .03 51 12.7 7.0 4 .354954 48 50.47 48 58.3 8.61 .41 5.54 .04 .03 49 12.4 7.9 6 .349570 48 57.50 44 34.1 8.44 .40 5.44 .04 .03 44 48.0 6.5 7 .3-16944 49 5.59 42 10.1 8.36 .40 5.39 .04 .03 42 13.1 11.7 8 .344334 49 16.67 39 .T-1.7 8.28 .39 5 34 .04, .03 39 52.3 6.5 9 .341774 49 30.69 36 59.7 8.20 .39 5.30 .05 .03 37 2.7 8.5 10 .339-231 49 47.62 34 13.4 8.13 .39 5.25 .05 .03 34 26.8 9.1 11 .336734 50 7.40 31 20.2 8.05 .38 5.20 .05 .03 31 23.1 8.7 IS .334258 50 29.99 28 19.9 7.97 .38 5.15 .05 .03 28 33.0 5.2 13 .331830 50 55.33 25 12.6 7.90 .37 5.11 .05 .03 85 15.4 6.6 14 .329414 51 23.38 21 58.4 7.82 .37 5.06 .05 .03 22 11.3 5.6 15 .327043 7 51 54. 09 + 24 18 37.5 + 7.75 0.37 5.01 0.05 -f 0.03 + 24 18 40.3 + 7.6 In the Santiago meridian series for Mars II are a number of observations, which were made with the micrometer in the eye-piece of the meridian-circle, and which, in addition to the measurement of absolute declination, give a measurement of distance from some one of the regular comparison-stars. In such cases we are put in possession of two determinations made at the same time. The meridian observations may, in fact, be classed under three categories. 1. Mars observed on fixed thread. 2. Star observed on fixed thread, and Mars shortly after on the movable thread. 3. Mars observed on fixed thread, and star on the movable thread. The first of these gives in each case one normal meridian observation. The second furnishes a determination of the star's place, and also a micrometric comparison of Mars with the star. The third affords both an absolute measurement of Mars belonging with the first series, and a micrometric determination like those included in the second division of the second category. In strictness, the Jfars-determinations of the second category, being micrometric, ought to be combined in the same series with those of the third ; but since the precise character of these determinations was only comprehended after study of the original manuscripts, at which time these cases had already been incorporated with the absolute determinations of the first category, a repetition of the computation has not appeared sufficiently important to call for a new distribu- tion and discussion. Consequently, our series, "MarsII, Santiago meridian," contains the Mws-observations of the first two divisions and the absolute determinations of the third ; the star-observations of the second being already included in our discussion of the comparison-stars, and the micrometric measurements of the third furnishing us the annexed new group. cxcriii OBSERVATIONS COMPARED WITH EPHEMERI8. MARS II. Computation for Santiago Meridian Supplementary Observations. Dale. Limb. t— T. Bur Np. l-ur'i 0. Meai'd D3. Htfr. Oba'd 3. Jd. 18S1— Dtc. 91 8. t — 40.387745 106 • t it + SO 3 89.84 i it — 0 *3.I8 it .01 • / 1' + 90 1 59.65 t -jj.-j • 8. 39.390716 108 90 9 33.73 + 3 59.63 .17 90 6 15.59 18.1 • 8. 35.409964 10S 90 «7 43.57 — 9 25.93 .11 SO 25 17.34 31.9 97 8. 3I.406I4H 103 20 97 42.49 + 2 56.50 .13 90 30 39.11 18.4 30 8. 31 415881 104 90 41 5.98 + 6 36.13 .30 90 47 4-2.41 90.8 31 8. 30.419198 99 90 57 18.14 — 3 31.13 .17 90 53 46.84 90.9 lUM.-Jin. 1 N. 29. 422556 100 21 1 43.43 — 1 21.27 .07 91 0 2-1.09 11.8 4 N. 36 433859 101 91 16 47.71 + 3 1.53 0.14 91 19 49.38 18.9 5 N. 85.436383 • 21 29 17.95 — 2 46.03 0.13 21 96 31.79 33.4 10 N. SO. 454361 95 93 3 35.24 — 0 36.56 0.03 93 1 48 63 91.9 16 8. 14.476873 •. 9346 31.42 — 1 38.02 0.08 93 44 53.31 90.5 17 N. 13.480715 89 23 51 33.75 + 0 40.49 0.03 22 53 14.97 19.3 S3 N. 5.51 1753 79 23 45 33.88 — 0 33.67 0.03 23 45 1.18 14.0 97 N. — 3.519513 77 23 58 1.50 — 1 33.00 0.08 93 56 28.49 19.0 Feb. 1 8. + 1.461314 68 24 25 1.60 — 3 :I9.23 0.19 24 91 92.18 16.6 I N. 2.457*3 68 94 35 1.63 + 0 56.41 0.05 94 25 58.09 13.9 4 N. 4.449833 64 24 28 59.75 + 4 51.93 0.23 94 33 51.91 15.3 8 8. 8.435013 63 24 46 56 93 — 0 S4.02 0.09 94 46 33.89 14.8 9 N. 9.431360 63 24 46 56.98 + 996.06 0.14 34 4923.18 14.7 18 8. 18.400148 57 35 0 18.36 -f- 1 53.10 0.11 25 9 11.57 15.4 18 N. 19.396866 57 95 0 18.43 + 9 30 34 0.14 35 9 48.90 11.9 20 8. 20.393612 57 95 0 18.48 + 9 37.83 0.14 25 2 46.45 11.4 21 N. 91.390395 57 35 0 18.54 + 3 43.54 0.15 25 3 1.93 6.5 Mar. 19 N. 41.334258 54 34 28 25.93 + 0 3.83 O.UO 949828.16 4.8 13 8. 42.331(30 M 94 28 26.00 — 3 17.18 0.18 34 35 8.66 6.7 14 N. 43.3-29414 55 24 IB 57.55 + 3 6.83 0.17 24 2-2 4.55 6.8 IS 8. + 44.317043 55 -f. 94 18 57.61 — 0 21 30 0.09 -|- 21 18 33.29 + 7.0 MARS II. Computation for Washington Equatorial Observations. Parallax. 8 0.1 10.74 .02 9* 10.85 14.11 4 .00X186 8 11 52.5 32 54.0 10.71 .03 33 4.79 13.73 6 .199631 8 10 94.0 35 33.9 10.66 .02 36 43.87 13.03 6 .195906 8 8 57.6 39 57.8 in r,-_> .03 40 8.43 13.19 7 .199904 8 7 33.5 43 7.5 10.57 .02 43 18.08 12.83 • .184884 B 4 59.5 48 43.1 10.47 .03 4853.58 11.37 10 .181971 8 3 35.9 51 9.0 10.41 .03 51 19.49 11.18 11 .177687 8 9 93.0 53 20.7 10.35 .03 53 31.08 10.83 19 .174138 8 1 11.0 55 18.0 10.29 .03 55 38.30 11.73 13 .1706*0 8 0 9.9 57 1.3 10.23 .03 57 11.54 13.60 14 .167138 7 58 57.8 24 58 30.9 10.16 .03 94 58 41.07 12.23 18 .160344 7 56 57.1 35 0 49.6 10.03 .03 95 0 59.64 11.01 17 .150911 7 56 1.5 1 39.3 9.95 .03 1 49.27 10.04 18 .153578 7 55 9.9 9 16.1 9.88 .03 9 96.00 10.18 19 .190981 7 M 90.9 2 40.7 9.81 .03 950.53 9.91 90 .147095 7 53 34.6 9 53.1 9.73 .03 3 9.85 8.53 91 .143807 7 59 W.4 2 53.7 9.66 .03 3 3.38 11.12 93 .137488 7 51 38.9 9 30.5 9.50 .03 3 30.09 8.47 94 .134390 7 51 6.9 1 47.2 9.42 .03 1 58.64 7.67 25 .131330 7 50 37.7 SS 1 3.5 9.34 .03 95 1 19.83 7.48 98 .193386 7 49 32.6 •f 24 57 59.3 + 9.10 8. 0.03 + 94 58 1.49 -f 6.98 OBSERVATIONS COMPARED WJTII EPHEMEEIS. CC1 .11 \ KS II. Computation for Kremsmiinster Meridian Observations. Date. Wash. M.T. in dec. of day. Tabular. Parallax. Def. ill. Comp'd 8. **. a. 3. A. m. s. » 1 tt / /; • // / it 1853.— Jan. 20 .273314 8 36 19.84 + 23 11 25.6 + 5.41 0.00 + 23 11 31.0 + 16.0 24 .257762 8 29 38.95 23 37 26.7 5.33 0.01 23 37 32.0 17.5 Feb. 8 .200553 8 6 10.72 24 46 4.8 4.84 0.03 24 46 9.7 15.3 9 .196907 8 4 51.53 24 48 45.1 4.80 0.03 24 48 49.9 15.2 10 .193-291 8 3 34.96 24 51 10.9 4.76 0.03 24 51 15.7 15.3 24 .146415 751 5.85 25 1 47.0 4 27 0.03 25 1 51.3 12.7 25 .143358 7 50 37.38 25 1 3.2 4.24 0.03 25 1 7.4 9.2 26 .140345 7 55 12.33 25 0 9.1 4.20 0.03 25 0 13.3 13.2 Mar. 6 .114883 7 48 ..».<>] 24 45 6.7 3.93 0.03 24 45 10.7 7.7 7 .112239 7 49 3.43 24 42 44.6 3.90 0.03 24 42 48.5 7.4 8 .109625 7 49 13.80 24 40 15.0 3.87 0.03 / 24 40 18 9 11.5 14 .094659 7 51 16.54 24 22 44.7 3.71 0.03 24 22 48.4 4.1 16 .089923 7 52 19.33 + 84 15 59.7 + 3.66 0.03 -f- 84 16 3.4 + '•< Z 20 ecu OBSERVATIONS COMPARED WITH EP11EMEBIS. III. FIRST CONJUNCTION OF VENUS. VRBTOB I. Computation for Santiago Equatorial Observations. Due. tVuh. M.T. in tec. of d.y. Tab. Q. Tib. '' . Pmnllts. Bemidiiaieler. Ob'd pin comp'd d. Ad. a. 8. a. d. k. m. i. • i n >. n «. n • i H II 1850.— Oct. It .33*449 16 40 96.70 — 98 39 40.3 — 0.94 + 7.01 1.14 15.83 N. -96 39 18.0 + 3.9 90 .3*075 16 44 13.97 96 41 56.1 0.94 6.67 1.15 15.44 N. 96 41 34.0 9.9 • .326958 16 51 45.97 9659 9.9 0.97 6.87 1.19 15.86 N. 86 58 40.9 1.9 93 .393971 16 55 96.53 97 6 44.6 0.98 t.89 1.91 16.08 N. 97 6 21.7 4.0 94 .311141 16 59 3.18 97 13 50.1 0 16 6.45 1.99 16.30 N. 87 13 97.3 3.6 85 .339789 17 9 49.57 979035.1 1.09 7.96 1.94 16.54 N. 97 SO 11.3 1.5 98 .313050 17 6 13.95 37 96 33.6 1.09 6.70 1.98 16.78 N. 97 96 10.1 + 4.0 99 .290139 17 16 97.91 87 41 97.4 1.09 6.08 1.39 17.53 N. 97 41 3.8 — 1.3 .350494 17 16 40.09 97 41 42.5 1.09 8.59 1.39 17.53 N. 97 41 16.4 1.0 30 .326339 17 19 54.06 97 45 31.5 1.10 7.70 1.34 17.79 N. 97 45 6.0 - 0.5 31 JH64* 17 93 8.99 97 48 55.1 1.19 7.92 1.38 18.06 N. 97 48 99.1 + 1.8 Nov. 1 .313547 17 96 16.87 97 51 44.4 1.19 7.40 1.39 18.33 N. 97 51 18.7 1.0 9 .323315 17 99 94.60 i 97 54 6.4 1.15 7.97 1.41 18.61 N. 97 53 39.8 1.0 4 .300149 17 35 17.83 97 57 13.6 1.15 7.21 1.45 19.19 !». 97 56 47.9 1.4 8 .311707 17 40 56.03 97 5899.1 1.91 8.08 1.50 19.81 N. 97 5754.9 + 0.9 7 .310076 17 43 35.97 97 58 11.4 1.93 8.16 1.59 90.13 N. 97 57 43.1 — 1.9 8 .308648 17 46 8.19 975731.4 1.85 8.31 1.55 20.45 N. 97 57 9.6 -O.S 10 .MM 17 50 51.98 97 54 47.0 1.83 7.94 1.60 91.13 N. 97 54 18.7 + 0.1 11 .3i:,a59 17 53 10.18 97 59 36.0 1.33 9.94 1.69 91.48 N. 9759 5.3 + 0.4 13 .314107 17 57 14.48 97 46 57.5 1.37 9.15 1.67 •-M.SII N. 9746 96.1 — 0.3 14 .315130 17 59 5.17 27 43 95.9 1.40 9.91 1.70 99.57 N. 97 42 53.4. + 1.9 15 .281037 18 0 44.20 97 39 35.5 1.36 8.39 1.73 29.94 N. 97 39 4.9 — U.I .319755 18 0 47.39 97 39 87.5 1.49 10.04 1.73 92.95 N. 97 38 54.5 + 0.2 1« .307103 18 920.74 97 35 9.4 1.44 9.99 1.76 23.33 »•• 97 34 99.1 + 1.4 17 .999045 18 3 44.74 27 30 13.0 1.44 9.43 1.78 23.78 N. 97 29 39.8 — 0.7 18 .30SM70 18 5 19.30 97 94 45.9 1.49 10.70 1.81 94.19 N. 27 24 11.1 + 1.9 H .991491 18 7 59.89 97 6 3.1 1.54 10.58 1.90 95.34 N. 27 5 26.9 1.5 94 .303418 18 9 14.34 96 42 57.9 1.64 19.36 1.99 26.60 N. 96 49 18.9 + 0.7 • .306238 18 9 90.98 96 34 18.8 1.66 13.05 9.02 27.03 N. 96 33 38.7 — 0.4 • .334374 18 9 15.14 X 24 58.7 1.66 15.11 9.04 27.46 N. 96 94 16.1 + 0.5 H .304189 18 8 33.25 96 5 37.1 1.73 14.09 9.10 28.98 N. 96 4 54.8 — 1.2 99 .31-: 331 18 7 S5.47 95 54 58.1 1.75 14.98 9.13 98.69 N. 95 54 14.4 + 3.4 30 .306782 18 7 7.43 954358.1 1.77 15.06 9.15 29.09 N. 95 43 13.9 — 0.7 !>«••. 3 .309140 18 339.41 25 7 50.0 - 1.83 16.10 9.93 30.24 8. 85 8 4.1 + 0.7 1101.— J»n. 8 .705480 17 4 58.76 17 38 19.9 + 1.59 19.99 1.85 96.37 8. 17 38 39.6 6.8 7 .705508 17 5 19.04 17 34 59.7 1.49 19.68 1.89 •r,.'.T, 8. 17 35 13.0 + 8.6 8 .66M13 17 5 47.43 17 39 98.5 1.46 19.33 1.79 95.54 8. 17 39 41.7 — 1.7 1 .11 j 'A, 17 6 25.91 17 30 31.5 1.44 19.16 1.76 95.13 8. 17 30 44.5 2.3 10 .657680 17 7 13.32 17 99 13.7 1.49 19.07 1.73 94.79 8. 17 89 96.3 9.8 11 .642953 17 8 8.85 17 98 33.0 1.40 19.35 1.70 94.31 8. 17 98 45.0 4.3 19 .657839 17 9 14.79 1798 96.7 1.37 11.59 1.67 93.91 B. 17 98 39.1 4.5 14 JMH 17 11 50.91 178951.6 1.31 10.89 1.69 93.19 8. 17 30 3.9 1.7 IS .658800 17 13 19.37 17 31 17.7 1.99 10.72 1.59 99.74 8. 17 31 29. 8 5.5 18 .657134 17 14 56.38 17 33 10.4 1.97 10.55 1.57 99. fH . 8. 17 33 22.9 3.1 17 .657131 17 16 40.95 17 3587.9 1.95 10 32 1.54 29.00 8. 17 35 38.9 9.9 18 .648177 17 1831.89 17 38 4.7 1.94 10.36 1.59 91.64 8. 17 38 16.0 4.5 90 .648941 17 91 35.99 17 44 19.9 1.19 9.94 1.47 90.93 8. 17 44 30.8 3.3 94 .650433 17 39 0.99 17 59 37.4 1.11 9.10 1.38 19.63 8. 17 59 48.0 4.5 98 .650814 17 37 18.19 18 8 8.6 1.08 8.74 1.34 19.01 8. 18 8 18.9 9.6 97 .651362 17 40 4.74 18 19 30.5 1.06 8.56 1.33 IB 79 8. 18 12 40.7 4.7 98 i,; j. ,^l 17 49 CO. 47 18 16 54.3 1.04 8.38 1.30 18.44 8. 18 17 4.4 3.7 Feb. ft .651380 18 8 98.49 18 49 50.3 O.W 7 30 1.15 16.38 8. 18 49 59.4 3.9 .650449 18 8 30.10 18 49 59.0 0.91 7.08 1.15 16.38 N. 18 49 98.5 5.3 8 .66-.TIO 18 19 0.78 1H 53 92.4 O.W 6.88 1.14 0. 18 53 15.6 4.7 7 .655149 18 15 30.89 18 68 35.0 0.89 6.97 1.19 0. 18 56 98.0 8.3 10 .6588M 1896 98.67 - 19 4 52.3 + 0.85 + 6.57 1.08 C. - 19 4 45.7 — 5.0 OBSERVATIONS COMPARED WITH EPHEMERIS. CC111 VENUS I. Computation, for Santiago Meridian Observations. Date. Wash. M.T. in dec. of day. Tabular. Parallax. Semi-diameter. Comp'd d. 41. a. 3. a. S. A. m. I. • / // . • / II // t, II • / H H 1851 — Jan. IS .8799"! 17 1340.14 — 17 31 40.4 + 6.07 .58 99.65 — 17 31 57.0 + 0.3 16 .877688 17 15 18.73 17 33 38.8 5.96 .56 99.98 17 33 54.9 0.7 17 .878179 17 17 4.83 17 36 0.9 5.84 .53 91.91 17 36 16.3 + 0.6 90 .879139 17 93 4.89 17 45 5.9 5.51 .46 90.85 17 45 90.5 — 9.1 H .870948 17 39 18.13 17 48 39.5 6.40 .43 ••<.:.< 17 48 54.6 1.0 • .869895 17 97 37.65 17 59 96.7 5.99 .41 90.19 17 59 41 .6 0.1 •j .8C8774 17 30 3.09 17 56 94.8 5.19 .39 19.87 17 56 39.5 9.7 M .80778* 17 M 34.39 18 031.8 s.08 .37 19.56 18 0 46.3 1.9 95 .868870 17 35 11.86 18 4 45.8 4.96 .35 19.35 18 5 0.1 3.3 98 .888011 17 37 93.54 18 9 4.7 4.88 .33 18.95 18 9 18.8 0 6 97 .869813 17 40 41.00 18 13 96.8 4.78 .31 18.66 18 13 40.7 1.7 96 .88447] 17 43 33.46 18 17 50.3 4.69 .99 18.38 18 18 4.0 — 0.6 Feb. 3 .861195 18 9 93.07 18 43 8.6 4.17 .18 16.80 18 4331.9 + I- 5 .860304 18 9 11.84 18 50 31.8 4.09 .15 16.33 18 50 47.9 + I- 6 .8600:3 18 19 41.61 18 54 0.7 3.95 .13 16 10 18 54 19.8 -0. ' 7 .890607 18 16 14.80 . 18 57 13.9 3.88 .19 15.88 18 57 35.9 + I- 10 .890318 18 37 13.57 — 19 5 90.3 + 3.6» .07 15.46 — 19 5 33.0 + 3. \ 1 M v I. Compulation for Washington Equatorial observations. Daw. Wart. M.T. in tec. of day. Tab. 0. Tab. 8. Parallax. Semi-diameter. Oba. part. Comp'd O. J3. a. 8. a. 3. k.m.l. * t it «. n t. n • / /; 1650 — Oct. 19 91 • .961184 .362813 .948188 16 40 8.67 16 47 46.33 16 51 37.67 — 28 31 55.5 98 50 13.9 96 58 94.9 — 0.69 0.70 0.67 -11.63 19.04 19.47 1.01 1. .860944 8 33 54.77 16 46 8.9 14.48 16 45 54.49 — 9.44 (») .853494 8 31 56.57 16 25 15.0 15.01 16 94 59.99 + 0.51 («) «. "' 'i. J 1 •own 8 30 43.11 16 15 93.1 15.97 16 15 7.83 — 1.48 (V .846159 899 90.33 16 5 56.9 15.59 16 5 40.38 — 0.43 (•) .843367 897 48.44 15 56 54.9 15.78 15 56 38.44 + 0.98 (19) . )-jf", .':ii 8 90 17.47 1595 15.4 16.69 15 94 58.78 — 0.08 (13) .891*94 8 18 6.93 15 18 30.3 16.80 15 18 13.50 + 1.34 09 .soeese 8 10 58.01 13 1 6.9 17.25 15 0 49.65 1.3S 99 .777107 7 59 43.09 14 37 18.4 17.56 14 37 0.89 3.09 An,. 4 .794008 7 97 17.05 14 46 56.4 15.79 14 46 40.61 5.33 19 .700009 7 94 10.49 IS 13 30.0 13.97 15 13 16.03 6.98 94 .678593 7 37 34.14 15 51 56.4 11.49 IS 61 44.98 7.01 • fl'l VI ) • Down 7 50 41.95 16 0 36.1 10.40 16 0 95.70 5.95 Sept. 1 .667397 7 54 49.80 16 0 59.3 10.09 16 0 49.91 5.93 • .666464 7 58 31.98 16 0 39.0 9.95 16 0 99.05 6.97 13 .660091 8 31 41.41 + 15 30 19.5 — 8.66 + 15 30 3.84 + 6.18 OBSERVATIONS COMPAEED WITH EPHEMERIS. CC1X VENUS II. Computation for Cracow Meridian Observations. Date. Washington M.T. in dec. of day. Tabular Parallax. Comp'd $. 49. a. - d. A. m. «. « / // n o ; it n ld.VJ.-Jim.; 2 .860169 7 51 25.64 + 23 34 41.7 •f 6.99 + 23 34 48.7 + 2.0 3 .859535 7 54 27.33 23 32 36.1 7.15 23 22 33.3 — 1.2 4 .858841 7 57 24.08 23 9 55.6 7.30 23 10 2.9 3.3 5 .858096 8 0 15.73 32 57 11.4 • 7.47 22 57 18.9 6.4 7 .856414 8 5 43.15 33 31 5.4 7.81 22 31 13.2 1.2 8 .855476 8 8 18.62 22 17 46.1 7.99 32 17 54.1 — 0.4 1] .853366 8 15 30.14 21 36 55.6 8.55 31 37 4.2 + 0.2 12 .851051 8 17 41.79 21 23 5.4 8.75 31 33 14.3 + 1.5 14 .848404 8 21 45.71 20 55 11.4 9.17 20 55 30.6 — 5.5 17 .843838 8 87 0.27 20 13 5.9 9.83 20 13.15.7 + 5.2 18 .842153 838 30.60 19 59 5.3 10.06 / 19 59 15.4 — 2.7 33 .832345 8.34 3.66 18 50 9.3 11.29 18 50 30.6 0.1 96 .825272 8 35 40.79 18 10 39.8 13.07 18 10 41.9 — 1.7 87 .822707 8 3554.86 17 57 41.5 13.34 17 57 53.8 + 6.4 Aug. 17 .633265 7 27 19.27 15 31 15.4 12.41 15 31 27.8 13.6 18 .631368 7 88 33.13 + 15 34 38.9 + 12.20 + 15 34 51.1 + 6.3 §8. SOLAR PARALLAX FROM CORRESPONDENT OBSERVATIONS. The fewness and insufficiency of the correspondent observations have already been shown and commented upon. It is nevertheless proper to deduce such resultant values as they afford, and this the preceding computations now enable us readily to do. The comparisons in these cases having been made with the same star and nearly at the same time, the corrections of the ephemeris and of the semidiameter may .be regarded as constant for the interval which may have elapsed between the northern and the southern observation. The paucity of material renders any attempts to eliminate the influence of irradiation or of personal equation altogether futile, and the formula thus assumes a very simple shape. The comparison of the planet with a fixed star gives the equation — 3— d=3.— d+ O\) ± r — k*- + fi4m± )? + i + q or m = < — in which the notation of § 3 is retained, p, being substitued for k w0, the parallax as computed with the adopted Enckian value. The results of the correspondent observations thus computed are appended, and arranged in a form which will explain itself. The northern observations are first given, then the southern ones, and lastly, the values deduced from the combination of the two, together with the determi- nation of » from the equation S = (k2 — kj **• Z 3 ccx SOLAR PARALLAX FROM CORRESPONDENT OB8ERVATIOK8. I. Correspondent Observations \n Northern Latitudes. A. HAR8 I. Plac.. Dale. Time. Wash. M.T. 'l Dml r, Pi *, • 1849. A. HI. I. It it n Waihinfton Dec. 19 439 6.88 .461998 — 67.49 — — 3.47 -0.405 u 19 4 39 (.89 .461998 -67.49 _ 3.47 0.405 Greenwich IS 5 18 IS .379844 -131.81 — 6.99 0.72S Wa.hir.jton 17 497 37.13 .445184 + 36.33 — 3.39 0.395 Cambridge 17 9 10 4.80 .333503 + 34.68 + 7.98 S.93 0.699 Wiabmgton 97 3S8 2S.54 .397649 — 26.83 — 3.34 0.390 Greenwich 97 0 SI 10 .054511 — 94.11 _ 8.45 0.986 Cambridge 87 9 4331.19 .339415 — 18.49 + 7.69 S.06 0.591 Washington 31 4 10 43.34 .385937 + 80.66 — 3.14 0.366 Cambridge 31 8 4 1.98 .457309 + 71.05 - 7.50 3.80 0.443 1850. Cambridge Jan. 1 1 S3 41.4 .281197 + 33.95 — 7.45 5.44 0.633 Greenwich 4 4 90 1S.S .177475 — 46.34 — 5.74 0.670 Cambridge 4 1 48 58.83 .368358 — 46.07 + 7.99 S.36 0.635 Greenwich 7 333 46 .130159 —319.40 — 5.91 0.690 Waabinfton 9 3 57 3.80 .361903 —355.73 - 9.98 0.348 • 13 3 40 57.14 .341853 + S9.67 — 3.01 0.351 (t 14 4 39 58.31 .370371 — 45.30 — 8.71 0.315 » 23 4 15 38.06 .338453 +144.67 — 9.57 0.300 H 39 3 It S4.06 .375307 —110.86 — — 9.73 — 0.318 B. MARS II Place. Date. Time. Wash. M.T. 'l Dml »"l .Pi *! 1859. A. m. .. H II n Washington Jan. 94 6 25 40.34 .434491 —445.63 — — 3.94 — 0.460 H Feb. a 6 36 51.43 .407664 + 90.73 — — 3.59 — 0.411 C. VESTCS I. Place. Date. Time. Wuh. M.T. <1 Dm1 »"l Pi *, 1850. A. m. r. H n // Waabinfton Oct. 19 90 8 33.71 .961184 —965.64 — — 11.63 — 1.357 it 93 30 1 35.02 .948186 +154.65 — 18.47 1.455 . ' n it n Santiago Dee. 12 34540.36 .411837 — 55.21 — + 11.90 + 1.388 •i 12 4 33 52.53 .445221 48.09 — 12.40 1.446 • 15 4 320.25 .415880 —102.30 — 12.14 1.417 • 17 5 6 31.16 .454176 + 53.11 — 19.58 1.468 « 27 5 24 41.28 .439454 — 11.19 12.18 1.421 • 31 4 55 12.18 .408113 + 98.89 — 11.85 1.383 1850. « Jan. 1 4 51 23.94 .402747 + 54.37 - 11.77 1.373 « 4 5 11 25.58 .408426 — 44.91 _ 11.55 1.347 • 7 5 « 42.04 .396962 221.93 — tl.97 1.315 • 9 5 6 23.99 .391292 —347.62 — 11.08 1.293 « 19 5 10 26.38 .385899 -f 94.50 — 10.79 1.259 " 14 5 20 13.40 .387213 — 33.01 -- 10.58 1.235 <( 22 526 8.50 .369468 +157.41 — 9.78 1.138 if 29 5 24 30.34 .349223 — 99.13 — + 9.11 + 1.083 B. MARS II. Place. Date. Time. Wath. M.T. t, Dm2 r, P* . ** Santiago 1859. Jan. 94 4. m. .. 8 948.04 .473829 n —415.06 1 —415.48 f _ H + 9.17 it + 1.263 H Feb. 9 8 6 34.80 .451873 + 46.58 — + 10.71 + 1.250 c. VENUS i. Place. Date. Time. Waih. M.T. t Dm2 r2 P* &2 1850. h. m. ,. it a II // Santiago Oct. 19 22 25 50.70 .338449 —236.83 +15.23 + 7.03 + 0.820 « 92 92 21 4.80 .326958 +152.67 15.86 6.87 0.685 H Nov. 1 92 41 8.48 .313547 333.59 18.33 7.40 0.863 H 2 22 59 11.28 .323315 +192.42 18.61 7.97 0.930 (I 10 22 28 27.40 .980189 —145.35 21.13 7.24 0.845 H 13 23 29 15.60 .314107 +218.67 22.20 9.15 1.067 (f 14 23 34 40.74 .315130 +121.84 22.57 9.91 1.156 M 91 23 28 8.62 .291491 — 6.96 +25.34 10.58 1.235 1851. (1 Jan. 15 11 5521.79 .658800 + 97.80 —22.74 + 10.72 + 1.251 CCXII SOLAR 1'ARALLAX FROM CORRKSI>ONDKNT OBSKRVATIONS. III. Parallax deduced from Correspondent Observations. 1 WASHINGTON ANU SANTIA«<>. Obi. Dale. t. 20. Dj. 2 +1.733 -0.489 Feb. i MM +0.044309 +953.5 + 11.91 -95 85 — +14.93 — 0.41 +1.681 +0.947 1850. n Venn. I Oct. 19 .999817 +0.077365 —580.4 —44.84 —98.81 +15.93 +18.86 —39.76 +9.177 +18.964 • .987579 +0.078779 —481.3 —37.91 + 1.98 +15.86 +19.34 — 0.73 —9.140 +0.341 NOT. 1 .977593 +0.079048 —157.6 —11.35 —39.05 +18.33 +21.96 - 3.11 -: 1 M,-' +1.914 a .960771 +0.089088 -186.4 —10.76 -33.49 +18.61 +99.P4 — 9.80 +9.665 +1.051 10 .958170 +•.044039 +111.1 + 4.89 —59.57 +91.13 +93.95 - 9.60 +9.795 +0.930 13 .979680 +0.082855 +196.9 + 16.28 -89.09 +99.20 +96.77 — 3.88 +3.193 +1.936 14 .970509 +0.089357 +993.9 +19.08 —71.08 +22.57 +27.93 — 0.60 +3.958 +0.184 91 .955156 +0.079871 +416.8 +30. -"9 —85.50 +95.34 +30.59 + 0.65 +3.569 -•.189 1851. Jan. 15 .709001 —0.100409 —100.9 +10.13 —16.10 -aa.74 +97.50 — 1.21 +3.909 +0.377 9. CAHBBIDGE AND SANTIAGO. Ota. Date. t. 2*. Df. 2t(J. Dml — Dm2 rt— r, Pi-Pi A *-*, •V d. n II n n n n H /' Mara I D«c. 17 JMM +0.120673 + 66.7 + 8.05 —18.43 —7.98 +18.51 +0.15 +9.160 -0.069 97 JMOI +0.110039 — 17.0 — 1.87 — 7.30 —7.69 +17.24 +0.38 +9.019 _n i-i 31 .439708 —4.049189 - 40.1 + 1.97 —27.84 +7.50 +15.65 —9.79 -!-'•- -"'• +0.148 Jan. 1 .341979 +0.191550 -44.9 -5.37 —91.12 +7.45 +17.91 —1.83 +1.996 +0.917 4 .::.;-.'' *•; +0.140068 — ss.i — 7.79 — 1.16 1M +16.91 +0 74 +1.979 —0.375 3. GREENWICH AND SANTIAGO. Ob.. Date. t. 2«?. Dj. 2t* Let us now, slightly varying the notation of § 3, denote the middle time £ (<" + f) by t, and the half-interval ^ (<" — <') by r, and consider the unaccented symbols as pertaining to the instant t, We shall then have,* omitting all terms of the third and higher powers — 3" = d,+ r A*. + i r« A9*. <*.' = 5. - r A*. + i ^A2*. F = k + rZ>,i -f $ Jm" = (<*" — <*) = (3 — d) -f £ (J" — ff) Jm' = (ff—d) = (d — d) (t"—TJt=(t— 2T)a-}-2r(< — rj-r-T2 («'— ZT)»=(<' — J7)2— 2r(<— The substitution of these expressions in the preceding equations gives us — 0= T ft- in both which formulas the upper sign is to be taken if the north limb was first observed, and the lower sign if the observation of the south limb preceded. By reason of the smallness of r, all consideration of many of the terms may be dispensed with. Not only do all the terms of the second order become negligible, but the quantities r Dt ^ \ pt-\- (}p + *o) ( iu the first, and T D,fc. <5» in the second equation are likewise inap- preciable. And we shall moreover find that y , the daily change of the correction to the tabular declination, as also z (t — T) which is of about the same order, are so small that their products with r are never sensible The only terms of the first order remaining in the first equation and containing r will then be T D,— p,= rD,^ or the variation of tabular semidiameter during the interval r. Re- curring to the ephemerides, we find the maximum amount of this variation in one day to be 0".06 for Mars I. 0".43 for Venus I. 0 .05 for Mars II. 0 .38 for Venus II. • The terra Jm U strictly = I — rf±/n, the quantity fm denoting the distance of the thread used from the standard or MTO thread of the movable diaphragm. But this coefficient U only employed in the present discussion, for instrnmenti provided with a single movable thread. EQUATIONS OF CONDITION. CCXV All these " Additional Equations" are numbered like the rest, the same number being prefixed to those equations which are derived from the same observations. It is thus rendered manifest that the term under consideration could not, even for Venus I, amount to so much as 0." 01 for T = 33°, an interval many times exceeding the largest value of T. In the second equation there remain the terms rl)tda and r.DJc.^ = rDJc^ = T-Dtp, or the variation of the parallax during the interval. Our equations thus assume the form — 0= cos = the variation of the parallax in declination during 10m, we have, $ D,p = + \*0 sin 2°.5 p cos : i!n 0 43117 •0.3893 3.77 10 .4*90 10.30 0.959 0.295 0.08 8.01 9.37 0.93486 0.43414 •0.3747 4.49 a 16 .4107 9.70 0.107 0.964 0.03 8.00 1.67 0.33423 0.43374 •MM 9.94 is 17 .4949 9.10 0.355 0.930 0.08 7.98 1.04 0.33333 0.43318 •0.0170 4.91 13 18 .4319 9.S9 1.003 0.198 +0.90 7.98 1.33 0.33234 MM •0.1339 4.88 14 90 .4967 9.31 1.168 0.133 —0.16 7.93 1.60 0.32986 0.43099 •0.3041 3.50 IS .5161 8.79 9.914 0.131 0.38 7.91 1.09 0.93973 0.43091 •0.0374 9.67 16 91 .4165 10.59 1.14B 0.103 O.lt 7.89 9.79 MHM 0.43007 •0.4456 9.99 17 • .4455 10.04 0.790 0.079 0.06 7.86 9.94 O.U3673 0.49903 •0.3509 4.94 18 S3 , !->-V. 9.73 0.530 0.044 0.09 7.83 1.99 0.33500 0.42794 •MM 4.50 1» • 94 .4316 10.03 0.931 -)-0.015 —0.01 7.79 9.44 0.23307 0.42673 •0.3874 4.80 90 as .-I'".' 9.63 0.939 —0.011 +0.00 7.76 1.87 0.33103 0.43545 •0.9718 4.88 91 96 .4897 9.99 0.333 0.036 0.01 7,79 2.96 0.31883 0.49409 •0.3541 9.14 99 87 .4395 9.98 0.350 0.060 0.03 7.68 9.96 0.21649 0.43263 •0.3541 4.77 93 30 .4008 9.86 0.975 0.121 0.03 7.55 9.98 0.90887 0.41790 •0.3579 4.53 M 31 .4081 9.55 0.405 0.139 0.08 7.50 1.99 0.30602 0.41614 •0.29*9 4.70 as 185U.-J»n. 1 .4097 10.09 0.019 0.155 0.03 7.44 9.SS 0.30319 0.41436 •0.4065 4.91 96 9 .4054 9.90 0.604 0.169 0.10 7.39 9.41 0.30008 0.41949 •0.3890 4.70 a? 4 .4084 9.73 0.338 0.193 0.07 7.29 2.37 0.19370 0.40859 •0.3747 5.00 as 6 .3654 9.89 0.714 0.209 0.1S 7.18 2.51 0.18708 0.40457 •MM) 3.97 • .4331 9.65 1.039 0.909 0.99 7.17 3.93 0.18685 0.40443 •0.3483 1.95 30 7 .3*70 «.B9 0.019 0.91S 0.00 7.19 9.70 0.18347 0.40338 •0.4314 4.37 31 8 .3985 10.09 0.731 0.990 0.16 7.06 9.89 0.17986 0.40031 •0.4503 4.00 39 1 .3913 9.7S 0.883 0.993 0.90 7.00 9.99 0.17623 0.39803 •0.4C65 4.00 33 10 .4053 9.79 1.045 0.994 0.93 6.94 9.69 0.17341 0.39574 •0.4183 3.86 34 11 JW 9.38 0.935 0.934 0.91 6.88 9.99 0.16864 0.39344 •0.3598 3.86 • 19 .3838 9.30 0.959 0.933 o.ai 6.81 9.87 0.16479 0.39131 •0.3560 4.00 • 13 .3768 10.95 0.853 0 931 0.19 6.76 3.30 0.16080 •.MM •0.5185 3.86 17 14 .3879 • 9.95 0.734 0.917 0.16 6.69 9.40 0.15686 *. 38651 •0.380-2 4.94 36 15 .3885 9.44 0.679 0.219 +0.14 6.63 9.67 0.15983 0.3W13 •0.4965 4.13 m .4364 7.80 0.797 0.319 —0.17 6.69 1.39 0.15361 0.38400 •0.1303 1.00 40 16 .3817 9.99 0.088 0.207 +0.09 6.57 9.70 0.14873 0.38173 •0.4314 4.33 41 17 .3603 9.48 0.656 0.901 0.13 6.51 9.84 0.14460 0.37932 •0.4533 4.50 4> 18 .3801 9.76 0.465 0.194 0.09 6.4S 3.93 0.14042 tjatm •0.5079 4.94 43 M .3591 9.36 9.364 0.186 0.44 6.38 9.94 0.13631 0.37451 •0.4048 1.00 44 90 .3S47 8.97 0.614 0.178 0.11 6.39 1.84 0.13308 n :I?-_H,S •0.3096 3.97 45 91 .3679 8.89 0.795 0.170 0.11 I.H 9.46 0.19776 I.MH •0.3909 3.86 46 •_•.' .3604 8.98 0.664 0.160 0.11 6.90 1.99 0.13345 0.36713 •0.3900 4.94 47 M .3519 8.33 O.SOO 0.151 0.12 6.14 9.07 0.11991 0.36471 •0.3160 3.97 48 .4074 7.93 0.144 0.150 0.03 6.14 1.77 0.11807 0.36457 •0.3480 9.85 40 94 .3738 8.93 0.793 0.143 0.11 6.08 9.04 0.11478 0.36920 •0.3096 4.13 M 99 .3646 7.74 0.676 0.132 0.09 6.09 1.63 0.11047 ft.tjtn •0.9193 4.13 21 96 .3658 8.93 1.518 0.183 0.19 5.98 9.76 0.10610 0.35733 •0.4393 3.86 • 97 .3489 7.49 1.015 0.114 +0.19 9.90 1.43 0.10179 0.35490 •0.1553 3.99 a M .3698 8.09 0.008 0.104 —0.00 9.84 9.18 0.09734 0.35349 •0.3385 4.18 M at .3489 7.SS o .•.•.-• 0.095 +0.08 5.78 1.71 0.09303 0.35003 •0.9330 4.13 CS 31 .8S19 7.86 0.516 —0.077 +0.04 5.66 -9.05 0.08493 0.34519 nO.3118 4.33 EQUATIONS OP CONDITION. FORMATION OF EQUATIONS OF CONDITION. MARS I. Equatorial, Washington. (BOTH LIMBS OBSERVED THROUGHOUT.) CCX1X •». Dite. log. b. log. C. log. g. log. S. log. n. ft2. S. P- 1 1848.— Nov. 2 nfl. 46535 0.53276 n9, 56709 0.05022 0.8129 0.1363 + 1.1226 2.57 3 4 tiO.45060 0.50336 n9. 63137 9.97128 0.6435 0.1830 0.9360 3.43 3 nO. 45023 0.50252 n9. 56947 9.99550 0.6435 0. 1377 0.9897 3.73 4 6 nl). 4341)6 0.47198 ii a. 63292 9.90993 0.5798 0.1844 0.8127 3.84 5 13 nO. 38426 o. 3^058 n9.621U 9.70492 0.8069 0.1747 0.5069 3.87 6 nO. 38372 0.36950 n9. 56528 9.74453 0.8062 0.1351 0.5553 3.27 7 13 nu. 37551 0.35308 n9.66434 9.62201 0.8976 0.2131 0.4188 3.79 8 34 nO.26117 0.13440 tiU. 64391 8.82317 0.7634 0.1940 0.0666 3.60 9 36 nO. 23667 0.07540 n9. 63064 8.57864 0.6812 0.1825 0.0379 4.83 10 nO. 23555 0.07316 Ti9. 58044 8.91803 0.5315 0.1448 + 0.0828 4.34 II Dec. 6 nO. 08828 9.77862 n9. 60374 718.42160 0.9445 0.1612 — 0.0264 4.57 19 »0. 08303 9.77812 n9. 58839 718.08636 0.7853 / 0.1502 0.0122 4.49 13 11 719.99044 9 58294 fi9.65828 718.70501 0.3617 0.2073 — 0.0507 4.03 14 13 •9.96704 9.53614 119.60719 8.07918 0.8513 0.1638 -f 0.0120 4.39 15 17 nO. 83106 9.36418 n9. 59666 9.04493 0.5315 0.1561 0. 1109 5.15 16 37 n9.35556 8.11318 n9.S9061 9.64670 0.5051 0.1518 0.4433 5.22 17 . 31 8.29509 6.19224 ..9.56366 9.81544 0.3617 0.1341 0.6538 4.82 18 18SO.-Jan. 5 9.43002 8.46210 71 1). 54331) 9.97732 9 7782 0.1220 0.9469 4.83 18 9 9.67030 8.94266 n9. 54162 0.08196 nO.4914 0.1211 1.2077 4.32 • 13 0.79038 9.18378 719.54531 0.15183 9.4771 0.1232 1.4185 4.30 21 14 9.85644 9.31494 719.49884 0.20672 7iU.6031 0.0995 1.6096 2.64 33 22 0.04802 9.69810 119.47696 0.36474 nO.1139 0.0900 2.3160 4.71 23 29 0.16545 9.93296 n9.50285 0.47749 710.1461 0.1013 + 3.0025 3.21 FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. MARS I. Equatorial, Washington. N'. Date. Waih. M.T. ob»'d r. 2r. 1A*.- =FrA*.- r. n. log. e. log. S. log. n. P- 1 1849.— Nor. 9 .8189 10.43 1.976 + o.sio it — 0.99 // 6.60 n —4.84 0.15127 0.38333 nO.6849 2.35 9 4 .7681 11.45 0.240 0.536 + 0.13 6.71 4.56 0.15778 0.38705 nO.6590 3.00 3,4 .8159 9.96 0.002 0.536 — 0.00 6.71 2.57 0. 15794 0.38714 nO.4099 3.50 & 19 .7639 13.90 0.002 0.642 0.00 7.11 6.83 0.18349 0.40269 nO.8344 4.75 6 .8248 12.65 0.003 0.643 0.00 7.11 5.55 0.18367 0.40250 nO.7443 3.27 7 13 .7307 10.83 0.003 0.654 — 0.00 7.16 3.73 0.18643 0.40417 nO.5717 4.58 8 24 .7214 10.03 0.504 0.716 + 0.36 7.66 1.95 0.21352 0.42078 nO.2900 3.00 * 36 .7236 11.01 0.002 0.708 — 0.00 7.74 3.31 0.32001 0.42482 nO.5198 5.12 10 .8120 11.23 0.002 0.708 — 0.00 7.74 3.50 0.22018 0.42492 nO.5441 4.13 11,12 Dec. 6 .4918 11.17 0.989 0.566 + 0.56 7.99. 2.60 0.23418 0.43371 nO.4150 3.77 13 11 .4356 11.96 0.080 0.425 0.04 8.03 3.83 0.23611 0,43494 nO.5832 3.13 14 12 .4619 11.55 0.571 0.395 + 0.33 8.03 3.25 0.23604 0.43490 nO.5119 3.59 IS 17 .4452 9.80 1.311 + 0.230 — 0.30 7.98 2.16 0.23334 0.43318 nO.3345 4.71 It 97 .3976 9.20 0.032 — 0.059 + 0.00 7.68 1.56 0.21659 0.42269 nO.1931 4.85 17 31 .3953 19.18 0.397 0.139 — 0.04 7.50 4.69 0. 20608 0.41618 TlO.6712 4.34 18 1850.— Jan. 5 .3833 10.11 2.317 0.201 0.47 7.33 3.31 0.19044 0.40661 nO.5198 4.24 19 9 .3613 7.73 0.661 0.223 0.15 7.00 0.85 0. 17632 0.39808 719.9294 3.50 90 13 .3419 8.45 0.159 0.223 0.04 6.82 1.63 0.16497 0.39130 nO.9193 3.42 31 14 .3703 9.59 0.783 0.217 0.17 6.69 3.05 0.15693 0.38655 7i0.48« 1.71 33 23 .3385 7.46 0.527 0.161 0.08 6.20 1.33 0.12358 0.36720 nO.1206 4.06 93 39 .9753 8.54 0.600 — 0.0% — 0.06 5.78 —2.78 0.09335 0.35021 nO.4440 3.25 IV \x EQ11TION8 OF CONDITION. FORMATION OF EQUATIONS OF CONDITION. Equatorial, Cape of Good Hope. (BOTH LIMBS OB8KBVKD TBIOCQBOVT ) «'. Due. log. 6. u>f.c. '-./. >Of-<7. log.*. lof. n. ft 8. P- 1849.-NOT.21 •0.99768 0.19749 0.78061 0.13809 0 90390 0.5051 MM +8.0091 9.56 •0.98768 0.1974* 9.73833 0.13903 0.39*68 0 6990 1.8969 9.5043 1.66 n •0.48687 0.17400 0.43476 0.13M6 0.66838 0.6333 1.8961 4.659* 9.66 94 •0.96398 0.19M9 0.50749 0.14864 0.71064 0.6902 1.9838 5.1361 9.56 • •0.95149 0.10490 •9.88314 0.15139 0.07060 0.6990 9.0081 + 1.1765 3.11 •0.35149 0.10490 nO.36882 0.15139 •9.63518 0.6803 9.0081 -•.4317 9.94 as •0.93881 0.07968 0.13975 0.15143 0.51391 0.5563 9.0085 + 3.9653 3.11 97 nO. 23657 0.05590 •0.44438 0.15579 •9.95434 0.7559 9.0485 — 0.9009 3.83 98 nO. 91355 0.03916 •9.88497 0.15779 0.04340 0.7076 3.0681 + 1.1051 3.69 10 • nO. 18958 0.0*194 0.11535 0.15501 0.49666 0.1788 2.0418 3.1535 3.84 11 30 •0.18655 9.97516 0.49783 0.15858 0.69853 0.5441 3.0757 4.9949 1.44 n Dee. 1 •0.17187 9.94580 0.41887 0.16361 0.65169 0.6812 3.1243 (.4M 9.58 13 9 •0.15618 9.91443 0.66500 0.15553 0.80907 0.5683 2.0466 + 6.4437 9.49 14 3 •0.14168 9.88543 •0.48353 0.16680 •0.07696 0.7834 9.1557 — 1.1939 3.90 IS 4 •0.19578 9.85364 •0.09661 0.16813 9.77517 0.7076 9.1690 + 0.5959 3.60 1C 5 •0.10938 9.89089 8.65753 0.16913 0.36386 0.7324 9.1789 9.3061 3.89 17 1 nO. 09000 9.78606 0.33890 0.17038 0.60130 0.74*4 9.1916 3.9930 4.65 IB 7 •0.07438 9.75083 0.57108 0.17105 0.74684 0.5798 9.1983 5.5839 4.65 18 e •0.05541 8.713(8 0.72084 0.17177 0.85969 0.6990 9.3056 7.1335 4.65 90 8 •0.03576 9.67358 0.83755 0.17147 0.93413 0.6335 3.2026 8.5937 9.00 91 •0.03580 9.67366 1.03548 0.17175 1.08604 0.6435 3.2054 + 13.4750 9.63 • 10 •0.01436 9.63078 •0.63601 0.15698 •0.39734 0.5563 9.0603 -3.4960 9.94 93 11 •9.99319 9.58990 •0.49322 0.17184 nO. 08814 0 6435 2.9064 — 1.3350 1.77 94 14 •9.94305 9.44816 9.35119 0.17333 0.33457 0.4634 MM + 3.1114 3.13 93 15 •9.89678 9.38563 0.03318 0.17341 0.48100 0.4634 3.3132 3.0369 3.13 96 1* •9.86848 9.33903 0.98393 0.17175 0.58917 0.0414 1.2054 3.8830 3.13 97 •9.86751 9.33708 0.98565 0.17062 0.59015 0.3979 9.1940 3.8918 3.6« *S 17 •8.83688 9.37539 0.49431 0.16841 0.66577 0.4634 9.1718 4.6330 3.60 99 18 •9.80447 9.91100 0.51655 0.16903 0.72313 0.4150 1.1780 5.3860 3.60 30 90 •9. 731*4 9.06454 •0.098M 0.16817 9.99960 0.6031 2.1694 0.8831 3.54 31 91 •9.68785 8.97736 •9.85034 .16113 0.19985 0.5798 2.1001 1.3485 3.54 33 82 •9.64141 8.88488 •9.64513 .16358 0.31780 0.5185 3.1143 1.6513 3.54 33 • •9.58066 8.78338 •9.41095 .16366 0.97313 0.4314 3.1348 1.8719 3.68 34 94 •9.59841 8.6S888 •9.90419 .15464 0.98579 0.4624 3.0384 1.9757 3.15 1, 95 •9.46338 8.59883 •9.15045 .15897 0.31043 0.5051 2.0794 9.0437 3.89 at •9.46181 8.52568 •9.16584 .15969 0.31004 0.5683 9.0863 3.0419 3.89 37 96 •9.38997 8.36800 •9.29358 .15459 0.30374 0.5441 9.0379 3.0135 3.89 38 •9.38003 8.36919 8.73158 0.15760 0.35683 0.3617 9.0663 1.3743 3.83 38 • •8.95669 7.51584 •9.88379 0.15033 0.19346 0.5*51 1.9983 1.5612 1.81 • IBSO—Ju. 7 8.55488 8.71184 0.78161 0.19016 0.95038 0.1461 1.7398 8.8183 9.59 41 8 9.61193 8. 83593 0.74581 0.11451 0.99155 9.7789 1.6845 8.3474 9.59 4> • 9.66035 8.99976 0.69383 0.11467 0.89194 0.3333 1.6957 7.7846 3.55 43 10 9.70644 9.01294 0.63510 0.11079 0.85838 — 1.6657 7.1173 3.55 44 11 9.74668 9.09530 0.56367 0.10576 0.89085 9.3*10 1.6275 6.6198 3.59 46 IS 9.78403 9.17019 0.47830 0.10071 0.77913 8.6021 1.5901 6.0946 9.59 4* 14 9.81788 9.93784 0.24S.-I8 0.09388 0.68397 •9.0000 1.5408 4.8191 3.1* 47 19 9.84913 9.30033 0.05358 0.09095 0.63020 9.6990 1.5303 4.3678 3.16 46 16 9.90715 9.41636 9.71399 0.08538 0.57997 •9.6091 1.4810 3.801* 3.16 * 17 9.83S67 9.46740 •8.76641 0.08154 0.51861 •0.0414 1.4634 + 3.3007 3.14 EQUATIONS OP CONDITION. CCXXl FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. MARS X. Equatorial, Cape of Good Hope. jr. Date. Wash. M.T Obs'd T. 2r =F^A ' >'o n log. 6. log. S. log. n. P- >,a 1849.— Nov. 21 .3070 II 9.49 9.74 It + 1.96 7.53 n + 0.02 0.90817 0.41747 8.3010 1.71 3 29 .3634 6.38 1.76 — 1.S6 7.57 — 0.05 0.21078 0.41908 n8.6990 1.71 4 24 .3396 10.08 9.06 + 1.47 7.66 — 6.94 0.21536 0.42192 n9.9731 1.71 5,6 25 .3174 6.49 1.53 — 1.09 7.69 •f 0.11 0.21753 0.42327 9.0414 2.25 7 26 .3390 7.14 1.31 0.93 7.73 — 0.30 0.21966 0.42460 n9.4771 2.95 8 27 .3021 8.04 0.67 '0.47 7.77 0.75 0.221:7 0.49579 H9.8751 3.50 9 96 .2979 7.59 0.68 0 47 7.80 0.90 0.22343 0.42696 n9.3010 3.27 10 29 .3321 7.30 0.85 0.58 7.83 0.03 0.92526 0.43810 n8.4771 9.25 11 30 .2789 7.58 1.00 — 0.67 7.86 0.37 0.33676 0.42905 n9.5682 1.71 19 Dec. 1 .9902 8.98 0.04 + 0.03 7.89 — 0.36 0.22836 0.43005 n9.5563 1.95 13 2 .3444 6.43 1.70 — 1.10 7.92 + 0.39 0.22984 ' 0.43098 9.5911 1.71 14 3 .2659 7.31 0.88 0.55 7.94 0.08 0.23103 0.43173 8.9031 2.25 15 4 .9819 7.08 - 0.71 0.43 7.96 0.45 0.23215 0.43243 9.6532 2.67 16 5 .9718 7.54 0.55 0.39 7.98 0.11 0.23316 0.43307 9.0414 3.00 17 g .2813 6.03 0.17 0.10 7.99 + 1.86 0.23403 0.43361 0.2695 4.00 18 7 .8637 8.36 0.97 0.15 8.00 — 0.52 0.23472 0.43406 (19.7160 4.00 19 « .9784 7.49 0.30 0.15 8.01 + 0.38 0.23530 0.43449 9.5798 4.00 20,91 9 .9894 6.57 1.64 0.80 8.02 0.66 0.23573 0.43470 9.8195 1.48 22 10 .3274 7.16 1.88 0.77 8.03 + 0.08 0.23600 0.43487 8.9031 S. 67 93 11 .2780 7.79 1.17 0.50 8.03 — 8.44 0.23611 0.43494 (J9.6434 1.96 94 14 .2474 7.68 0.86 0.29 8.09 + 0.05 0.23552 0.43456 8.6990 3.00 95 15 .9306 7.38 0.54 0.16 8.01 -f (.46 0.23502 0.43424 9.6628 3.00 98 16 .2255 9.09 0.43 0.19 8*00 — 1.22 0 23436 0.43383 nO.0864 3.00 27 .2566 8.43 0.00 0 8.00 — 0.41 0.23434 0.43382 »9.6128 4.00 28 17 .2626 7.35 0.24 0.06 7.98 •f 0.59 0.23351 0.43329 9.7709 4.00 29 18 .2503 6.83 0.37 0.07 7.96 + 1.08 0.23253 0.43267 0.0334 4.00 30 20 .2988 7.99 0.87 0.12 7.99 — 0.19 0,23013 0.43116 (19.2787 9.67 31 21 .2573 7.81 0.66 0.07 7.89 + 0.04 0.2S864 0.43022 8.6021 2.67 39 22 .2413 7.82 0.50 0.04 7.86 0.29 0.22707 0.42924 9.34-24 2.67 33 S3 .2072 6.80 0.35 — 0.02 7.83 1.01 0.22539 0.42819 0.0043 1.00 35,38 95 .1975 7.49 0.96 + 0.00 7.76 0.34 t.22151 0.42576 9.5315 3.00 37,38 96 .1857 7.44 0.37 0.09 7.73 0.30 0.21938 0.42443 9.4771 3.00 39 99 .1890 7.51 0.04 0.00 7.61 0.10 0.21211 0.41991 9.0000 1.95 40 1850.— Jin. 7 .1768 7.90 2.14 0.46 7.13 + 0.40 0.18424 0.40285 9.6021 1.71 41 8 .1838 7.59 1.82 0.40 7.07 — *.10 0.18064 0.40068 n9.0tlOO 1.71 44 11 .1598 6.95 1.76 0.39 6.89 + 1.04 0.16954 0.39409 0.0170 1.71 45 12 .1636 5.75 1.61 0.36 6.83 1.46 0.16566 0.39171 0.1644 1.71 48 14 .1498 6.27 1.42 0.31 6.71 0.76 0.15781 0.38706 9.8808 2.25 47 15 .1305 5.55 1.41 0.30 6.64 1.39 0.15385 0.38473 0.1430 2.95 48 16 .1504 6.33 0.36 0.07 6.58 0.33 0.14968 0.38228 9.5185 9.95 49 17 .1*77 6.69 1.39 + 0.97 6.59 + 0.17 •.14565 0.37993 9.2305 9.95 OCZX1J EQUATIONS OP CONDITION. FORMATION OP EQUATIONS OP CONDITION". MARS I. Meridian, Cape of Good Hope. N-. D.te. Limb. lof. 6. lof. C. '<*•?. 10,. 8. 10,. n. P. 8. 1 184*. -Nor. 18 N. 8. •0.398W 0.96004 0.13244 0.31035 O.M531 1.84 + 9.0434 3 H N. 8. •0.31879 0.93950 0.13538 0. 30501 0.55509 1.87 9.0184 3 91 N. 8. •0.99743 0.19699 0.14107 0.99535 0.65610 1.92 .9740 4 99 N. 8. •0.98638 0.17480 0.14378 0.99104 9.44716 1.94 .9545 1 95 N. 8. •0.95143 0.10499 0.15143 0.88021 0.95809 2.01 .9064 C 97 N. 8. •0.99647 0.05500 0.15575 0.27460 0.61805 9.05 .8819 7 98 N. 8. •0.91344 0.02894 0.15807 0.37358 0.63448 3.07 .8739 8 99 N. 8. nO. 19999 0.00904 0.16008 0.37080 0.56585 3.09 .8655 I 30 N. 8. •0.18611 9.97498 0.16196 0.28940 0.89086 9.11 .8595 JO Dec. 1 N. 8. •0.17179 ' 9.94564 0.16379 0.96834 0.79727 3.13 .8550 11 9 N. 8. •0.15697 9.91600 0.16535 0.26766 0.58093 3.14 .8521 19 3 N. 8. •0.14164 9.88534 0.16683 0.96736 0.68931 2.16 .8508 13 4 N.8. •0.19574 9.85354 0.16818 0.96736 0.45332 2.17 .8508 14 « N. 8. •O.OV908 9.78693 0.17046 096853 0.67486 9.10 .8558 15 7 N. 8. nO.07439 9.75050 1.17136 0.96961 0.53020 2.90 .H604 16 8 N. 8. nO. 05559 9.71394 0.17219 0.27103 0.57519 9.31 .8665 17 1 N. 8. •0.03613 9.67433 0.17971 0.97277 0.40140 2.33 .8740 18 10 N. H. ,.0.01576 9 63358 0.17315 0.97485 0.75358 2.93 .8830 If H N. 8. •9.99438 ». 59083 0.17343 0.97794 0.71600 9.33 .8934 20 19 N. S. •9.97189 9.54584 0.17359 0.97996 0.73239 2.92 .9053 21 14 N. 8. •9.99310 9.44826 0.17335 0.98628 0.52114 3.92 .9333 83 15 N. 8. •9.89650 9.39506 0.17283 0.98988 9.97313 2.22 .9493 S3 16 N. 8. •9.86813 9.33832 0.17328 0.99374 0.3S361 2.91 .9667 94 17 N. 8. •9.83780 9.27766 0.17154 0.29787 •0.33041 2.30 .9856 35 18 N. 8. •9.80517 9.91240 0.17063 0.30231 0.39003 3.19 2.0059 • 90 N. 8. •9.73153 9.06512 0.16834 0.31193 0.40483 9.17 2.0508 H 91 N. 8. ' •9.68940 8.98086 0.16695 0.31710 0.30750 9.16 2.0754 98 28 N. 8. 1,9.64276 8.887S8 0.16537 0.32249 0.32428 9.14 2.101.1 II 93 N. S. •9.59050 8.78306 0.16368 0.32816 0.46687 9.13 2.1289 30 M N. 8. •9.53108 8.66432 0. 16183 0.33405 0.62839 9.11 9.1580 31 98 N. 8. •9.38034 8.36974 0.15766 0.34649 0.52564 9.07 2.2207 33 97 N. 8. •9.97935 8. 16076 0.15536 0.35301 0.32428 9.05 2.2543 33 • N. 8. •8.95874 7.51951 0.15039 0.36663 0.34943 2.00 9.3261 34 SI N. 8. 7.95228 5.50662 0.14484 0.38108 0.35411 .95 2.4048 35 18M.-J»n. 3 N. 8. 9.19990 8.00181 0.13569 0.40403 •9.98677 .87 2.5353 36 4 N. 8. 9.31864 1.23934 0.13943 0.41199 •0.18759 .84 3.5839 37 7 N. 8. 0.55359 8.70924 0. 12905 0.43673 0 35173 .75 2.7335 38 8 C. 9.61093 8.89350 0.11840 0.44521 0.05308 .73 9.7875 39 8 0. 9.66039 8.92370 0.11468 0.45389 •0.48144 .70 2.8433 40 10 0. 9.70593 9.01359 0.11089 0.46256 nO. 38917 .67 2.9011 41 11 0. 9.74593 .09399 0.10709 0.47138 •9.88640 .64 9.960G 43 19 0. 9.78314 .16834 0.10310 0 46033 •0.97875 .61 3.0332 43 14 0. 9.84918 .30042 0.09506 0.49845 •0.31242 .55 3.1510 44 15 0. 9.87878 .35964 0.09097 0.50764 •0.36549 .S3 3.2184 45 16 0. 9.90650 .41506 0.08682 0.51689 •0.30963 .49 3.9877 46 17 0. 9.93956 9.46M8 0.08963 0.99621 •0.94304 .46 + 3.3590 EQUATIONS OF CONDITION. CCXX111 FORMATION OF EQUATIONS OF CONDITION. MARS I. Equatorial, Greenwich. (OBSERVED CENTRE.) N'. Date. log. b. log. C. log. g. log. S. log. n. yfc2. S. P- 1 1849.— NOT. 26 nO. 24150 0.08506 nO. 05695 n9. 82445 0.0414 1.300 — 0.6675 3.49 2 30 nO. 18550 9.97306 n9.86027 n9. 50215 0.526 0.3178 3 Dec. 8 nO. 05720 1 9.71646 .19.94018 n9. 70731 0.792 0.5097 4 IS n9. S9563 | 9.39332 n9. 86045 n9. 42193 0.3802 0.526 0.2642 3.62 5 27 tl9. 29508 8.19222 n9. 99382 n9.22427 9.9031 0.972 — 0.1676 4.15 6 1850— Jan. 4 9.3)989 8.2118-1 n 9. 8257 7 9.74578 nO.2553 0.448 + 0.5569 3.21 7 5 9.40716 8.41636 n9. 87292 9.72853 NO.U114 0.557 0.5352 3.52 8 7 9.55207 8.70620 n9. 83910 9.85546 nO.2788 0.476 -f- 0.7169 3.21 FORMATION OF EQUATIONS OF CONDITION. MARS I. Meridian, Greenwich. !»'. Date. Limb. log. b. log. C. .'of. g. log. 8. log. n. A8. S. 1 1849.— NOT. 1 C. nO. 47393 0.54932 ii9.80336 9.96783 nO. 00000 0.4043 -f 0.9286 2 8 C. nO.43595 0.47396 n9. 81685 9.77357 0.4771S 0.4302 0.5937 3 18 C. nO. 34832 0.29870 n9. 84024 8.82607 0.60206 0.4793 0.0670 4 30 N. nO. 18539 9.97286 n9. 860-22 9.&T385 0.69020 0.5253 0.6821 S Dec. 4 N. nO. 12490 9.65186 n9. 86196 9.81298 0.59106 0.5296 0.6501 6 8 N. nO. 05461 9.71128 n9. 86214 9.81451 0.51851 0.5300 0.6524 7 15 N. n9.89508 9.39223 n9. 85809 9.86939 0.68124 0.5202 0.7401 8 17 N. n9. 83617 9.27440 n9. 85590 9.89470 0.59106 0.5150 0.7847 9 19 N. n9. 76803 9.1X10 n9. 85324 9.93324 0.54407 0.5087 0.8380 10 87 N. n9. 37347 8.14900 119.83829 0.05587 9.00000 0.4749 1.1373 11 28 N. n9. 13955 7.88116 n9. 83596 0.07346 0.20413 0.4698 1.1843 13 89 N. n8. 94488 7.49182 n9.83354 0.09110 0.04139 0.4646 1.2334 13 1850.— Jan. 4 N. 9.32394 8.34994 n9. 81704 0.19656 0.07918 0.4306 1.5724 14 5 N. 9.41608 8.43422 1)9.81399 0.21376 9.69897 0.4246 1.6363 IS 7 N. 9.55668 8.71443 n9. 80765 0.24795 9.77815 0.4124 1.7699 16 23 N. 0.06366 9.72938 1)9.74777 0.49650 nO. 14613 0.3130 3.1347 17 30 N. 0.17810 9.95828 n9. 71835 0.59034 nO. 55630 0.2733 3.8926 18 Feb. 6 N. 0.38881 0.13928 1)9.68823 0.67637 nO. 71600 0.2379 4.7464 19 7 N. 0.28013 0.16330 n9. 68393 0.68807 nO. 74819 0.2333 4.8761 20 9 N. 0.30229 0.20664 ..9.67529 0.71110 nO. 78533 0.2242 5.1416 31 13 S. 0.34349 0.38904 n9. 60815 0.56771 nO 78533 0,2072 3.6958 33 16 N. 0.37300 0.3460C n9. 64544 0.78757 nO. 83251 0.1954 6.1316 23 31 C. 0.41574 0.43354 i>9. 62466 0.77063 nO. 78533 0.1775 5.8968 34 22 C. 0.43400 0.45008 1)9.62065 0.78217 nO. 77815 0.1743 •f 6.0558 ccxxiv EQUATIONS OP CONDITION. FORMATION OF EQUATIONS OF CONDITION. HAH* I. Equatorial, Cambridge. M: Due. Limb. 10,. 6. lof. C. if.e. lot.gT. lof.S. lOf.fl. i» 8. P- i IMS— No*. U a •0.3U37 0.339W •9.66331 9.57031 0.6811 0.219 +0.3718 3.05 t IS N. •0.3546V 0.31144 0.19304 •9.80830 0.43171 0.3979 0.413 +9.7091 1.61 1 8. •0.354*1 0.31198 •0.19308 •0.8M0 •0.38785 0.7489 0.449 —9.4399 9.91 4 1* 0. •0.34701 0.79790 «».W»7S 8.88769. 0.6198 0.463 +0.0773 3.94 1 B. ••.34473 0.2915S •0.19598 .9.858* •0.40118 MM MM —9.5479 •-> U 1 SI 0. •0.28608 0.19422 •9.79181 •8.51339 0.6819 0.383 -0.0396 3.89 7 0. •0.9M00 0.18786 •8.85334 •9.13033 0.7404 0.508 0.1350 3.70 • 98 8. •i.83354 0.06914 •0.92050 •9.91796 •0.48130 0.7404 0.686 — 3.0S90 3.61 t 30 Jf. •0.17980 9.96166 0.99754 •9.91300 0.35658 I.MH 0.670 +9.2799 3.98 10 DM. 11 c. •V 99349 9.58904 •9.91017 n9.68590 0.5798 0.787 —0 4844 3.59. 11 17 N. •9.83463 9.17133 0.33344 •9.84016 0.40195 0.4914 0.479 +9.5333 3.69 IS • N. •9.06371 8.13948 0.91873 •9.77146 0.46036 0.3788 0.349 +4MHI 3.93 13 • 8. •9.13368 7.86749 •0.11443 •9 73094 •0.36948 •0.4150 0.388 —9.3040 9.18 14 C. •9.12292 7.84790 ••.796aa 9.53339 •9. 7781 0.384 +0.3415 3.00 IS 29 N. •8.80577 7.91360 0.31071 •0.04085 0.39157 1.908 +3.4636 16 • 8. (.35917 6 32040 nO. 20589 •9.84671 •0.30758 0.0793 0.196 —3.0304 4.83 17 ISSO.-Ju. 1 a (.60777 7.21760 •9.79451 9.64631 0.4771 0.388 +0.4439 4.75 18 4 N. 9.39033 8.96059 0.19416 ••.79596 0.50109 9.3010 0.391 +3.1703 363 It 5 0. 9.43045 8.46905 •9.0889 9.94096 9.9031 0.181 JO..-7-J-.I 3.91 FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. MARS I. Equatorial, Cambridge. V. Due. Wuh. M.T. Oh.'dr. 2r. W.- ^rDd. r.- n. l«f.«. 10f.«. 10,. n. P- 1 1849 —N»». 14 .6190 H 9.19 9.358 if + 0.665 H + l.SO 7.99 n -0.40 0.18979 0.40617 •9.6031 9.44 «,s 16 .4308 6.80 1.107 (l.i.-J — 0.74 7.31 0.33 0.19507 0.40943 •9.5051 9.67 • 11 .4538 9.81 1.346 0.714 + 0.98 7.54 1.93 0.90855 0.41770 nt.0864 3.43 7 .7416 (.16 0.911 0.715 0.65 7.55 0.*3 0.90996 0.41814 •8.4771 3.13 • 30 .7431 9.06 0.774 0.670 0.59 7.88 0.73 0.39754 0.43953 •9.8633 1.54 10 Dm. 11 .9979 9.60 0.816 + 0.430 + 0.35 8.03 3.00 0.93611 0 43494 nO. 3.UO 9.57 13,14 38 .3457 7.7« 0.674 — O.OSO — 0.05 7.65 0.19 0.91497 0.43135 •9.0793 3.00 19 1850.-J«n. 9 .3886 8.60 1.854 — 0.901 - 0.37 7.93 — 1.03 0.19043 0.40660 •0.0086 3.00 EQUATIONS OF CONDITION. CCXXV FORMATION OF EQUATIONS. MA IIS I. Meridian, Athens. N°. Date. Limb. log. b. logC. log. e. log.gr. log. 8. log. n. &9. S. 1 1849.— Nov. 22 S. nO.28654 0.17514 n0.21066 n9. 54970 nO. 38321 1.11727 +0.126 —2.4166 2 S3 N. nO. 27521 0.15248 0.21303 -n9. 55015 0.44937 0.91908 0.126 +2.8143 3 25 N. nO. 25161 0.10528 0.21749 n9.55073 0.44467 0.94939 0.126 +2.7840 4 26 S. nO. 23931 0.0806« nO. 21958 l>9. 55077 nO. 40557 1.12057 0.126 —2.5443 5 28 S. nO.21363 0.02932 nO. 22343 n9. 65080 nO.41394 1.13033 0.126 —2.5938 6 29 N. nO. 20019 0.00344 0.22518 n9. 55073 0.43840 0.90849 0.126 +2.7441 7 30 B. nO.18633 9.97472 tiO.S2683 Ii9. 55041 t.0. 42052 0.97313 0.126 —2.6334 8 Dec. 4 S. nO. 12597 9.85400 nO. 23215 n9. 54841 nO. 42849 1.07188 0.125 —2.6822 9 9 N. nO. 03642 9.67490 0.23571 119.54403 0.44031 0.93953 0.123 +2.7562 10 14 S. n9. 92348 9.44902 til). 23553 n9. 53779 nO. 41868 1 .09691 0.119 —2 6223 11 15 N. n 9. 89689 9.39584 0.235U2 n9. 53629 0.45244 0.91581 0.118 +2.8343 12 16 S. n9. 66855 9.33916 nO. 23436 n9. 53483 nO. 41135 '1.07188 0.117 —2.5784 13 17 N. 719.83825 9.27656 0.23355 n9. 53328 0.45812 0.89209 0.117 +2.8716 14 19 N. nil. 77044 9.14294 0.23144 n9. 52992 0.46459 0.90309 0.115 +2.9147 15 31 N. T.9. 69005 8.98216 0.2S872 n9.52639 0.47179 0.84510 0.113 +2.9634 16 22 8. n9. 64348 8.88902 nO. 22714 n9.53450 nO. 37736 1.00860 0.112 —2.3843 17 23 N. •19.59131 8.78468 0.22541 n9.52259 0.47972 0.90849 0.111 +3.0180 18 24 8. n9. 53201 8.66608 nn.22354 n9. 52059 nO.36150 1.02119 0.110 —2.2988 19 28 B. n9. 14977 7.90160 nO. 81469 ti9. 51212 nO. 32177 1.01284 0.106 —2.0978 20 29 N. •8.96078 7.52362 0.21216 ..9.50983 0.50763 0.80618 0.105 +3.2183 21 1850.— Jan. 1 N. 8.76407 7.13020 0.20384 r>9. 50264 0.52378 0.83251 0.101 +3.3402 22 3 S. 9.03304 7.66814 nO. 20084 n9. 50014 n0.2o327 0.96379 0.100 —1.7917 23 3 N. 9. 19790 7.99788 0.19774 1.9.49753 0.53529 0.46240 0.099 +3.4300 24 5 N. 9.41056 8.42318 0.19124 «9. 49214 0.54734 0.41497 0.096 +3.5365 25 6 S. 9.48742 8.57690 nO. 18785 n9.48937 nO. 17751 0.83251 0.095 — 1.5049 26 8 S. 9.60944 8.82094 nO. 18081 n9. 48356 nO. 12933 0.86923 0.093 —1.3478 27 10 8. 9.70461 9 01128 nO. 17345 n9. 47755 nO. 07266 0.91908 0.090 —1.1821 28 15 N. 9.87837 9.35880 0.15391 n9. 46084 0.61497 0.53148 0.083 +4.1307 29 19 N. 9.98006 9.56218 0.13739 n9. 44704 0.64466 0.17609 0.078 +4.4122 30 26 8. 0.11534 9.83274 nO. 10733 1.9. 42018 9.64464 0.59106 0.069 +0.4412 31 27 N. 0.13163 9.86532 0.10297 n9. 41618 0.70708 nO. 04139 0.068 +5.0943 32 29 N. 0.16250 9.92706 0.09422 n9. 40803 0.72309 9.00000 0.066 +5.2856 33 Feb. 1 S. 0.20505 0.01216 nO. 08107 n9. 39560 0.07119 0.38021 0.062 +1.1781 34 3 8. 0.21835 0.03876 nO. 07669 n9. 39139 0.11638 0.74036 0.061 +1.3073 35 3 N. 0.23126 0.06458 0.07231 1.9.38719 0.76349 nO. 00800 0.060 +5.8008 36 4 P. 0.24380 0.08966 nO.06794 n9. 38294 0.19634 0.55630 0.058 +1.5716 37 5 N. 0 25598 0.11404 0.06357 n9. 37875 0.77972 nO. 14613 0.057 +6.0217 38 10 S. 0.31226 0.22658 nO. 04186 n9.35728 0.38173 9.778,5 +0.052 +2.4084 Z 5° CCXXV1 EQUATIONS OF CONDITION. FORMATION OP EQUATIONS OF CONDITION. MARS II. Equatorial, Santiago. *•. D«e. Limb. 10,. 6. lo». C. tof.e. •»/. "Ot-?. to,. *. klf.n. F. 8. t* 1851.— Dec. 18 N. 8. •0.35634 0.31474 9.97918 9.99454 0.43667 ,!.,-.,,•- + 0.975 + 9.7339 4.60 If. 8. •0.35593 0.313W 0.00788 0.00468 0.45037 0.7634 1.093 MM 1.99 19 M.S. •0.39685 0.95576 0 07199 0.00397 0.45713 0.7559 1.011 3. 8650 4.94 N. 8. •0.3*54 0.35514 0.01313 0.47089 0.7708 1.058 MM 3.60 If. 8. »0.3*36 0.95478 0.10B85 0.01593 0.47733 •.7404 1.073 + 3.0014 3.00 90 8. •0.31640 0.23486 nO. 11690 •0.44137 0.01031 •0.53171 0.8633 1.049 — 3.4090 4.97 91 8. •0.3058S 0.91378 •0.19017 •9.57875 0.01399 A.MM 0.7934 1.061 — 1.0541 5.17 8 93 8. HI • ., 0.19316 nO 13340 0.33031 0.01538 0.15534 0.7160 1.073 + 1.4300 5.10 9 94 8. •0.37228 0.14663 •t.ttM ,/< :'-'.'.v_> 0.03938 •9.99734 0.7853 1.145 - 0.9939 5.09 10 95 8. •0.96054 0.13314 nO.lJStO 0.49991 0.03343 0.36303 0.7334 1.167 + 1.9188 4.90 11 98 8. MMMH 0.07974 nO. 13584 nO.93354 0.03738 •0.39563 0.8513 1.134 - MM 4.88 13 8. •0.94829 0.09864 •0.13597 nO. 18518 0.04009 •0.36538 0.8693 1.303 — 9.3189 4.17 13 97 8. •0.33631 0.07468 •0.13883 0.18589 0.03536 t.M 'i Mtii 1.177 + 0.7067 4.91 U 9P If. 8. •0.30343 0.04892 •9.99007 0.04193 9.75618 0.7853 1.913 0.5704 4.91 IS 99 N. 8. •0.31054 0.03314 9.44199 0.03893 0.35548 0.7324 1.197 1 . -m :• 4.15 16 30 N. 8. •0.19T.95 :• MM 0.58993 0.04354 0.71835 u mi 1.933 + 5.3500 4.94 17 31 N. 8. •0.18303 9.96819 •0.35733 0.05936 ,.'! .-M >,| 0.6434 1.390 — 0.7391 4.57 18 ISH.-Jin. 1 N. 8. •0.16834 9.93874 •0.05553 0.05449 9.59.Y.1 O.I..M.' 1.985 4. MM 4.64 19 9 If. 8. •0.15361 9.90998 09.17493 0.05388 0.13580 0.8451 1.276 1.3671 4.89 90 4 N. 8. •0.13310 9.84896 0.17799 0.05889 0.48093 o..-.,.-j 1.311 + 3.0364 4.46 91 5 N. 8. •0.10539 9.C1964 •0.98391 0.06491 •9.58693 1.348 — 0.3863 4.50 99 6 N. 8. •0.08778 MIM na. 78154 0.07073 9.97653 0.7489 1.385 + 0.9474 4.30 33 7 N. 8. •O.OC986 9.74178 ••4BH 0.07141 •9.97987 MM) 1.389 — 0.9547 4.46 94 8 N. 8. •0.05173 9.70553 0.19805 0.05845 0.49178 0.8195 1.309 + 3.1030 3.91 25 N. 8. •0.05075 9.70356 0.95607 0.07768 u ..-.•-'.': 0.7853 1.430 3.3804 4.14 96 9 N. 8. •0.03I3U 9.66484 •9.64444 0.07573 0.05565 0.8388 1.418 1.1367 4.66 S7 10 N. 8. •0.01071 9.63348 •9.79134 0.07913 9.98967 0.7489 1.440 0.9765 4.86 98 11 It. 8. •9.988S6 9.57918 8.53783 0.08816 0.31997 0.7483 1.487 1.6594 3.64 29 19 If. 8. •9.90664 9.5.1544 9.51779 0.07894 0.98865 0.6434 1.434 1.9438 4.83 30 M.S. •9.96563 9.53333 9.71966 0.08910 0.33638 0.6031 1.506 3.1696 3.95 31 13 N. 8. •9.94199 9.48590 9.49707 0.06864 0.39487 0.6791 1.504 + 1.9718 4.65 33 14 N. 8. •9.91673 9.43550 •0.97875 0.08790 •9.35908 MM 1.499 — (I.-.-M-, 4.75 33 1C N. 8. •9.86109 9.33434 * MH 0.08864 0.33865 0.6813 1.504 + 1.7334 4.36 34 17 N. 8. •9.83043 9.96993 8.96614 0.08786 0.36081 0.7076 1.499 1.8331 4.34 35 90 N. B. •9.71185 9.04576 •0.08314 0.09979 |.(|M MM 1.533 0.66*3 4.91 38 N. 8. ,.•' -,:... i 9.04146 •9.97197 0.10083 9.9S875 0.6902 1.591 „ HM 4.65 37 91 N. 8. •9.67950 8.96106 0.34898 0.08674 0.55733 0.8335 1.491 3.6065 9.48 38 99 N. 8. ,•' i Ml 8.86053 0.09007 0.10119 0.47076 0.4771 1.594 9.9504 4.55 39 93 N. 8. ,..' H in 8.7HB6 •0.03810 0.10107 •.•Ml 0.6333 1.593 0.8507 4.49 40 94 N. 8. •9.51363 8.61939 nO. 06153 0.10143 9.91761 0.6333 1.596 0.8373 4.98 41 95 N. 8. n9.44.T99 8.49004 n9. 77335 0.09479 0.14713 0.3010 1.547 1.4033 4.81 43 97 N. 8. rt.MM 8.10136 •0.04*59 0.09799 9.98650 0.6198 1.589 0.9694 4.50 43 98 N. 8. •9.10433 7.81070 9.31837 0.10033 -,•.'..' 0.3399 1.587 9.3043 4.30 44 99 N. 8. •B.MB 7.37460 0.94009 0.10046 0.59369 1.589 3.9336 45 30 N. 8. •8.42886 MMI 0.17551 0.10006 0.57179 0.0414 1.585 3.7306 4.90 48 31 N. 8. 8.35937 6.39080 •0.91779 0.09903 9.79817 9.9549 1.578 0.6983 4.49 47 Feb. 1 N. 8. 8.85074 7.30354 •0.34891 i, Hilt 8.87448 0.0414 1.596 0.0749 4.76 48 9 N. 8. 9.08847 7.77900 9.66736 0.09675 0.45378 1.569 MM 4.1-1 49 3 N. 8. 9.33994 8.08064 9.58614 0.0*453 0.44935 n.ln.i 1.545 9.8149 4.50 50 7 N. 8. 9.5S918 8.74049 0.08663 I Mm 0.1139 1.490 0.7043 4.45 81 8 N. 8. 9.89318 8.84849 •9.36589 0.09153 0.39869 „•> IN | 1.594 9.4998 4.51 m 9 N.8. 9.67181 8.94568 0. 12669 11 MM 0.61934 •9.7783 1.439 4.0858 4.09 S3 N. 8. 9.67499 8.95904 0.15993 0.08039 0.69440 •9.9549 1.448 4.9111 9.70 M 10 N. 8. 9.71648 9.03509 •9.79311 n.i MM 0.34506 AIM 1.450 9.9134 4.98 56 11 N. 8. '.< MM 9.11403 9.83336 0.07751 0.55143 •0.1761 + 1.499 + 3.5596 1.95 EQUATIONS OF CONDITION. Equatorial, Santiago — Continued. ccxxvn N°. Date. Limb. log. b. log. C. log. 6. log./. log- g. log. S. log. U. F. S. P- 56 1852.— Feb. 11 N. 8. 9.75793 9.11792 9.86064 0.07586 0.55875 nO.1461 +1.417 + 3.6203 3.22 57 13 N.S. 9.82595 9.25396 0.1*067 0.07227 0.63856 nO.1761 1.395 4.3507 3.19 58 N. 8. 9.82747 9.25700 0.13621 0.07132 0.64343 nO.2788 1.389 4.3998 2.61 £9 14 N.S. 9.85748 9.31702 n9. 96360 0.07072 0.33943 B9.7782 1.3S5 2.1849 4.58 60 15 N. a. 9.88566 9.37338 .19.32552 0.06246 0.46951 71 II. I II Kill 1.334 2.9479 4.58 61 16 N.S. 9.91347 9.42900 9.60692 0.06408 0.56245 nO.2553 1.344 3.6514 5.01 612 17 N.S. 9.93917 9.48040 9.94359 0.06088 0.62328 nO.3617 1.323 4.2003 5.28 63 19 N.S. 9.98606 9.57418 0.16101 0.05257 0.69205 nO.6232 1.274 4.9210 4.52 64 20 N.S. 0.00792 9.61790 0.18808 0.04982 0.70730 n0.6!28 1.258 5.0969 5.01 65 21 N.S. 0.02886 9.65978 0.18258 0.04769 0.71301 nO.6232 1.246 5.1643 4.90 66 83 N.S. O.II!-:i7 9.69880 0.14264 0.04175 0.70819 nO.6434 1.212 5.1073 3.62 87 as N.S. 0.06728 9.73662 0.05910 0.03773 0.69457 nO.6902 1.190 4.9495 4.77 68 24 N. 8. 0.08541 9.77288 9.89807 0.03385 0.67043 nO.6628 1.168 4.6820 4.77 69 25 N.S. 0.10294 9.80794 nO. 11333 0.03136 0.42899 nO.5563 1.155 2.6S53 4.65 70 26 N.S. 0.11973 9.84152 nO. 27103 0.02805 0.34477 nO.5315 1.138 3.2119 4.65 71 27 N.S. 0.13669 9.87544 nO.40583 0.02418 0.21275 nO.7076 1.118 1.6321 4.41 72 28 N.S. 0.15120 9.90446 0.31144 0.01723 0.79989 n«.66S8 1.083 6.3080 4.20 73 N. A. 0.15205 9.90616 0.30386 0.02197 0.79864 nO.7324 1.107 6.2699 4.03 74 29 N.S. 0.16615 9.93436 0.08303 0.01184 0.74540 nO.7243 1.056 5.5641 4.03 75 Mar. 1 N.S. 0.18082 9.96370 9.40773 0.01090 0.67370 nO.6812 1.052 4.7173 4.99 76 2 N.S. 0.19503 9.99212 119.89774 0.00922 0.57751 nO.6232 1.043 3.7802 5.30 77 3 N.S. 0.20840 0.01886 nfl. 27717 0.00136 0.44253 nO.5315 1.006 2.7703 4.75 78 4 N. S. 0.22187 0.04580 0.40128 0.00171 0.86339 nO.8385 1.008 7.3011 4.34 79 6 N.S. 0.24725 0.09656 n9. 16732 9.99479 0.68639 nO.7782 0.976 4.8572 4.40 80 7 N.S. 0.25918 0.12U42 0.51424 9.98792 0.92304 nO.8751 0.946 8.3760 3.94 81 8 N.S. 0.27100 0.14406 0.24005 9.98583 0.84296 nO.8195 0.937 6.9657 4.36 83 9 N.S. 0.28239 0.16684 9.195C3 9.98104 0.74025 nO.8062 0.916 5.4986 4.19 83 10 N.S. 0.29339 0.18884 nO. 17447 9.97410 0.59743 flO.6090 0.888 3.9576 3.37 84 11 N.S. 0.30452 0.21110 0.25486 9.97378 0.86815 nl.0043 0.886 7.3817 4.60 as 12 N.S. 0.31480 0.23166 8.60531 9.96321 0.75803 nO.9494 0.844 5.7284 3.69 66 N.S. 0.31521 0.23248 ,.'!-. I'll].-, 9.97010 0.75410 nO.9345 0.871 5.6767 4.60 87 13 N.S. 0.32M2 0.25290 nO. 27402 9.96464 0.59640 nO.9243 0.850 3.9482 4.64 88 14 N.S. 0.33562 0.27330 0.26829 9.96128 0.89274 nO.9638 0.837 7.8116 4.58 89 15 N.S. 0.34550 0.29306 n9.20303 9.95710 0.77273 nO.9191 +0.821 + 5.9255 4.82 ccxxviii EQUATIONS OF CONDITION. FORMATION OP ADDITIONAL EQUATIONS OP CONDITION. MARS II. Equatorial, Santiago. »: Dmu>. «-.,-•, M.I Ota-dT 2r. \D& =FrZ)t00 r.. n. tof.e. lof.«. lug. n. P- i 1BU.-DK. 18 .4871 n 11.84 4.644 a -fO.COS II + 3.41 n 5.91 n -9.38 0.10344 0.34483 nO.3766 4.00 9 .6104 7.70 0.033 0.613 0.01 5.9t 1.78 0.10343 n. :u M •0.9404 1.96 3 ID .4403 10.03 3.860 0.745 9.15 6.04 1.76 0.11344 0.36140 •0.9444 4.00 4 .4803 7.87 1.439 0.746 1.15 6.04 0.06 0.11363 0.36155 •9.8194 3.00 5 .4973 7.63 0.394 0.757 0.39 6.04 1.36 0.11369 0.36158 •0.1335 9.94 14 - .4448 8.49 0.011 1.178 + 0.13 6 48 1.83 0.14174 0.37766 ..'.•> M 4.89 13 t] -._-.! , 6.77 0.43) 1.909 — 0.64 6.40 0.93 0.14443 0.37937 •MM 3. 86 1* 30 .5*36 8.48 0.607 1.354 + U.76 6.45 1.95 0.14797 0.38088 •0.0869 4.00 17 31 .4167 7.97 0.115 1.983 — 0.15 6.48 1.54 0.14983 0.38949 nfl. 11,75 4.37 18 lBSa.-Jan. 1 .4304 8.44 0.336 1.317 + 0.43 Mi 1.40 0.15949 0.383*3 •0.1461 4.50 » 9 .5136 8.74 0.444 1.348 0.60 6.66 1.48 0.14400 0.38441 •0.1703 4.57 90 4 .4079 9.15 0.770 1.404 1.08 6.73 1.33 0.14969 0.38828 •0.1306 3.69 at 4 .4130 8.17 0.448 1 !-.'? 0.64 «.77 0.75 0.16191 0.38949 •9.8751 4.00 » 6 .5199 8.47 0.474 1.450 0.69 6.80 0.98 0.16401 0.39074 •9.9919 3.69 S3 7 .4097 9.36 0.743 1.468 •f 1.09 6.83 1.39 0.16598 0.39190 •0.1306 3.69 84 8 .4700 7.07 0.616 1.483 — 0.91 6.86 l.'lS 0.16781 0.39299 n 0.0607 3.00 35 .4904 6.70 0.477 1.484 — 0.86 6.87 0.69 0.16789 0.39304 •9.8388 3.97 N 8 .4007 8.91 0.737 1 496 + 1.16 6.89 0.80 0.16963 0.39408 •9.8543 4.00 87 10 .4008 8.44 tMt 1.505 0.37 6.93 1.96 0.17133 0.39503 ill). 1004 4.93 98 11 .MOO 9.00 0.416 1.411 0.63 6.94 1.43 0.17280 0.39597 •0.1543 3.00 98 19 .4786 9.10 0.334 1.514 0.41 6.96 1.63 0.17415 0.39678 •0.3193 4.94 30 .4330 8.63 0.414 1.414 0.63 6.96 1.04 0.17430 t.tHK nO.0170 9.35 31 13 .4037 8.49 0.948 1.513 0.39 6.98 1.99 0.17543 0.39754 •0.0664 4.94 sj 14 .4688 8.73 0.967 1.409 0.40 7.00 1.3) 0.17654 0.39831 •0.1306 4.70 33 16 .4747 8.76 0.494 1,490 0.74 7.03 0.99 0.17834 0.3W30 •9.9956 4.94 34 17 .4649 8.87 0.643 1.478 0.96 7.04 0.86 0.17906 0.39973 •8.9345 3.69 as 90 .4480 8.44 0.917 1.414 + 0.31 7.05 1.08 0.18029 0.40046 •0.0.134 4.70 31 .4113 7.99 0.183 1.413 — 0.96 7.06 1.19 0.18031 0.40048 •0.0755 4.94 37 91 .4383 9.40 0.431 1.387 + 0.74 7.07 1.57 0.18040 0.40053 •0 1859 1.71 38 • .4837 9.19 0.447 1.355 + 0.63 7.07 1.50 0.18038 0.40053 •0.1761 4.33 3B 93 .4763 8.97 0.433 1.333 — 0.70 7.06 1.91 0.18020 0.40041 T,'I.U,-M 4.33 40 94 .4738 9.11 0.385 1.987 + 0.40 7.05 1.46 0.17986 0.40093 •0.1931 4.93 41 94 .4407 8.88 0.169 i.aso 0.91 7.04 1.63 0.17939 0.39983 •0.9123 4.64 49 97 .4463 8.64 0.660 1.166 0.77 7.03 0.84 0.17798 0.39908 •MM 4.40 43 98 .4470 8.87 0.834 1.130 0.93 7.00 0.94 0.17704 0.39851 •9.9731 3.86 44 • .4608 8.07 0.904 1.075 0.99 6.98 0.87 0.17597 0.39787 •9.9395 4.77 45 30 .4631 7.83 0.908 1.037 0.41 6.96 0.66 0.17475 0.39694 •9.8194 4.00 40 31 .4474 8.10 0.444 0.979 0.44 6.94 0.71 0. 17341 0.39633 •9.8413 4.33 47 Feb. 1 .4183 7.74 0.083 0.831 0.08 6.93 0.74 0.17198 0.39449 rt,8Hi 4.4; 48 9 .4519 8.18 0.370 0.879 0.33 6.90 0.98 0.17031 tMtm •9.9919 4.50 49 3 .4683 7.84 0.189 0.837 0.16 0.87 0.81 0.16843 0.39343 •9.9085 4.40 SO 7 .4187 7.84 t.404 0.694 0.94 6.73 0.86 0.16040 0.38860 •9.9345 4.33 51 8 .3K4 7.83 0.111 0.574 0.06 6.70 1.07 0.15810 0.38734 •0.0994 4.46 S3 9 .3937 7.79 0.364 0.593 + 0.19 6.66 0.94 0.15466 0.38480 •9.9731 3.69 S3 .4698 8.86 0.960 0.490 — 0.40 6.66 0.83 0.14448 0.38569 •9.9138 1.95 64 10 .4114 7.85 0.755 0.473 + 0.36 6.63 0.87 0.15304 MMH •9.9394 3.86 » 11 .4037 7.53 0.101 0.433 + 0.04 6.48 0.91 0.14041 0.38371 •9.9590 1.96 M .4440 7.10 0.017 0.490 — 0.01 6.48 0.43 0.140*7 0.38363 •9.7943 9.44 47 13 .3980 7.93 0.780 0.395 + 0.94 6.49 0.49 0.14483 0.37945 •9.6909 9.94 48 .4430 7.48 0.665 0.333 0.91 6.49 0.78 0.14469 0.37938 ,.!•..-.'! 1.71 M 14 .4049 7.30 0.673 0.377 0.19 6.45 0.66 0.14186 0.37773 •9.8194 3.86 10 15 .3704 7.54 0.501 0.933 0.19 6.40 1.03 0.13894 0.37604 •0.0198 3.8S 61 18 .3871 7.43 0.303 0.186 0.06 6.36 1.01 0.13578 0.37490 •0.0043 4.40 • 17 .3890 7.03 0.909 0.141 0.04 6.33 0.67 0.13360 0.37937 •9.8361 4.97 « n .3683 6.83 0.004 + 0.044 + 0.00 6.99 -0.61 0.13609 0.36863 „'.<. -,.-.:i 3.77 EQUATIONS OF CONDITION. Equatorial, Santiago — Continued. CCXX1X N'. Date. Wash. M. T. Obs'd r. 2r. Wo- =FrA«- ra. n. logC. log.S. log. n. P- 64 1852.— Feb. 20 .3682 it 6.86 0.417 + 0.014 a + 0.01 /t 6.17 n —0.68 0.12270 0.36670 7)9.8325 4.50 63 31 .3740 6.86 0.589 — 0.027 — 0.02 6.13 0.75 0.11924 0.36473 n9.875l 4.33 66 22 .3561 6.79 0.538 0.066 0 04 6.08 0.75 0.11583 0.36279 n9.875l 2.67 67 23 .3510 6.22 0.626 0.104 0.07 C.03 0.26 0.11226 0.36078 n9.4150 4.13 68 24 .3469 6.70 1.027 0.142 0.15 5 98 0.85 0.10867 0.35876 719.9S94 4.13 69 25 .3493 6.50 0.554 0.178 0.09 5.93 0.66 0.10502 0.35671 719.8195 4.24 70 26 .3485 " 6.59 0.571 0.213 0.12 5.88 0.83 0.10135 0.35466 719.9191 4.24 71 27 .3980 6.53 0.532 0.249 0.13 5.82 0.84 0.09745 0.35248 n9. 92-13 3.86 72 28 .3290 6.60 0.356 0.280 0.10 5.78 0.93 0.09395 0.35054 n9.9685 3.50 73 .3842 6.33 0 275 0.282 0.08 5.77 0.64 0.09375 0.35043 7.9.8062 3.27 74 29 .3210 6.08 0.173 0.311 0 05 5.73 0 40 0.09020 0.34847 n9.602l 3.27 75 Mar. 1 .3288 6.24 0.266 0.343 0.09 5.68 0.65 0.08637 0.34636 719.8129 4.75 76 2 .3370 6.37 0.151 0.373 0.05 5.63 0.79 0.08251 0.34434 719.8976 5.14 77 3 .3171 6.21 0.251 0.402 0.10 5.58 0.73 0.07874 0.34218 719.8633 4.33 78 4 .3347 5.89 0.457 0.431 0.20 5.53 0.56 0.07480 0.34004 7>9.7482 4.13 79 6 - .3411 5.90 0.426 0.487 0.21 5.43 0.68 0^6700 0.33582 719.8325 4.24 80 T .3246 6.06 0.437 0.514 0.22 5.38 0.90 0.06316 0.33376 719.9542 3.50 81 8 .3274 5.86 0.474 0.540 0.26 5.33 0.79 0.05924 0 33166 719.8976 4.24 82 9 .3193 5.90 0.082 0.565 — 0.05 5.23 0.67 0.05535 0.32959 719.8261 3.93 83 10 .3031 6.99 0.027 0.590 + 0.02 5.24 1.73 0.05149 0.32743 nO.2380 2.83 84 11 .3225 5.77 0.312 0.615 — 0.19 5.19 0.77 0.04748 0.32542 719.8865 4.42 85 12 .2890 5.M 0.100 0.639 — 0.06 5.14 0.76 0.04368 0.32342 719.8808 3.00 86 .3273 5.98 0.107 0.640 + 0.07 5.14 0.77 0.04353 0.32334 719.6865 4.41 87 13 .3111 5.51 0.346 0.663 — 0,23 5.09 0.65 0.03968 0.32132 719.8129 4.50 88 14 .3157 5.64 0.279 0.687 0.19 5.05 0.78 0.03573 0.31936 719.8921 4.33 89 15 .3128 5.57 0.5138 — 0.710 — 0.17 5.00 —0.74 0.0318.! 0.31723 719.8692 4.80 FORMATION OF EQUATIONS OF CONDITION. MA US II. Meridian, Santiago. N*. Date. Limb. log. b. log. C. log. 6. log. g. log. S. log. n. A2. 8. 1 1851.— D«c.l9 S. nO. 32815 0.25436 nO. 11378 0.01665 719.76589 0.8976 + 1.080 — 0.5833 9 31 S. nO. 30522 0.21250 nO. 12038 0.02396 719.81351 0.8692 1.117 0.6509 3 22 8. nO. 29437 0.19080 nO. 12362 0.02760 (19.83347 0.9494 1.136 0.6815 4 24 S. nO.27180 0.14566 nO. 12995 0.03478 7>9.86729 0.7993 1.174 0.7367 5 25 8. nO.26007 0.12220 nO. 13303 0.03831 719.88150 1.0128 1.193 0.7612 6 2R 8. nO.94801 0.09808 nO. 13606 0.04182 719.89409 0.9085 1.212 0.7836 7 27 8. 7)0.23560 0.07326 nO. 13901 0.04526 719.90531 0.9294 1.232 0.8041 8 28 S. •0.22389 0.04984 nO. 14190 0.04865 n9.91408 0.9494 1.251 0.8205 9 30 a. nO. 19613 9.99432 nO. 14745 0.05528 719.93064 0.7709 1.290 0.8524 10 31 8. nO. 18212 9.96630 nO. 15011 0.05849 719.93671 0.6990 1.309 — 0.8644 11 1853.— Jan. 1 N. nO. 16745 9.93696 0.15268 0.06264 0.59890 710.3424 1.334 •f 3.9710 19 9 N. 710.15269' 9.90744 0.15516 0.06471 0.59955 0.5682 1.347 3.9769 13 4 N. •0.12112 9.84430 0.16177 0.07065 0.60259 0.3424 1.385 4.0049 14 5 N. nO. 10443 9.81092 O.lo389 0.07308 0.60389 1.0212 1.400 + 4.0169 15 e 8. nO. 08707 9.77620 nO. 16422 0.07606 7i9. 95080 0.8195 1.419 — 0.8929 18 7 B. nO. 06899 9.74004 nO. 16779 0.07865 719.95216 0.8325 1.436 — 0.6957 17 8 N. n0.050I3 9.70232 0. 16797 0.08118 0.60844 0,7404 1.453 ;- 4.0592 18 9 8. nO. 03054 9.66314 7>0. 16972 0.08154 719.94655 0.8281 1.456 — 0.8842 11 10 N. nO. 00976 9.62158 0.17134 . 0.08581 0.61256 0.7076 1.485 •f 4.0979 90 11 N. n9. 98807 9.57820 0.17S85 0.08794 0.61479 0.4771 •f 1.499 + 4.1190 CCA. XX EQUATIONS OF CONDITION. Meridian, Santiago — Continued. N'. Due. Lunb. i»6. lof. C. i°f. e. lot g. lo». 8. tof.n. *». 8. ai I83&-JU.13 8. .9.96594 9.53954 •0.17433 0.08993 •9.93737 0.8139 + 1.513 — 0.8458 » 13 N. •9.94105 9.48438 0.17547 0.09183 0.61985 0.3494 1.596 + 4.1653 83 14 8. •9.91564 9.43334 •0.17658 0.09353 •9.91048 0.83ft) 1.539 — 0.8137 M 15 N. •9.88754 9.37714 0.17758 0 09516 >.6MH 0.4694 1.550 + 4.9165 as 16 8. •9.85965 9.39138 •0.17840 0.09658 •9.88839 0.3494 1.580 -0.7739 as 17 N. •9.89868 9.35949 0.17909 0.09790 0.63053 0.2041 1.570 + 4.3710 37 18 B. •9.TC534 9.19374 •0. 179*4 0.09903 •9.86004 0.8961 1.578 — 0.7245 se 19 N. •9.75933 9.19059 0.18005 0.10003 0.63659 0.8991 1.585 •f 4.3303 » 90 N. •9.71984 9.04174 0.18030 0.10088 0.63964 0.0000 1.591 4.3615 30 ai N. •9.67659 8.95510 0.18041 0.10153 0.64984 0.0000 1.596 4.3938 31 99 3. •9.63839 8.8S8B4 •0.18037 0.10305 •9 78017 0.9085 1.600 0.6038 39 93 N. •9.57435 8.75058 0.18018 0.10358 0.64950 •9.8451 1.604 + 4.4617 33 94 8. •9.51941 8.69K8 •0.17985 0.10354 •9.79411 0.1761 1.603 — 0.5398 M 35 N. •9.44098 848358 0.17938 0.10356 0.69634 •9.0000 1.603 + 4.5335 X 97 N. •9.94545 8.09296 0.17794 0 10209 0.66349 •0.3041 1.601 + 4.6078 X 98 8. •9.10096 7.80398 •0.18000 0 10)59 •9.56808 0.6812 1.597 — 0.3699 37 H N. •8.88269 7.36784 0.17595 0.10096 0.67090 0.3424 1.593 -1- 4.6871 38 30 8. •8.49415 6.45036 •0.17474 0.10015 •9.41847 •9.6091 1.586 — 0.3621 39 31 N. 8.36649 6.33400 0.17340 0.09991 0.67863 •0.1139 1.579 •f 4.7713 40 Feb. 1 8. 8.88368 7.33943 •0. 17199 0.09809 •9.19618 •9.7789 1.571 — 0.1571 41 9 N. 9.06945 7.78096 0.17030 0.09689 0.68659 •0.1761 1.563 + 4.8587 43 3 8. 9.93794 8.07854 •0.16856 0.09539 •8.64345 •0.7076 1.551 — U.0440 43 4 N. 9.34731 8.39668 0.16669 0.09383 0.69473 9.0000 1.541 + 4.9514 44 7 8. 9.57046 8.74396 •0.16036 0.08839 9.31387 0.1461 1.503 O.B8M 45 8 8. 9.63506 8.85318 •0.15803 0.08618 9.43596 •9.0000 1.487 0.9735 48 9 N. 9.673S5 8.94916 0.15557 0.08395 • 0.71640 •0.0414 1.473 5.9047 47 10 8. 9.71716 9.03638 tlO. 15300 0.08154 9.61731 •9.6990 1.455 0.4143 48 11 N. 9.75680 9.11566 0.15036 0.07910 0.72553 nO.3617 1.440 :>.::i,vj 49 13 N. 9.83663 9.25533 0.14477 0.07378 0.73494 •9.3010 1.405 S.4317 90 14 N. 9.85776 9.31758 0.14183 0.07098 0.75675 9.0000 1.S87 5.4939 51 15 N. 9.88678 9.37569 0.13884 0.06806 0.74464 •0.1461 1.368 5.5514 58 16 8. 9.91399 9.43004 •0.13579 0.06501 9.94655 •0.4914 1.349 0.8843 63 17 N. 9.93961 9.48128 0.13255 0.00191 0.75459 •0.5798 1.329 5.6833 54 18 8. 9.98379 9.52964 •0.12930 0.05869 0.02386 nO.4150 1.310 1.0565 Si 19 N. 9.98670 9.57546 0.13801 0.05541 0.76483 •0.8751 1.290 5.8187 56 30 8. 0.00*47 9.61900 •0.12361 0.05214 0.09237 •0.6335 1.272 1.2370 57 31 N. 0.02919 9.66044 0.11918 0.04862 0.77534 •0.7243 1.251 5.9613 M 33 N. 0.04897 9.70000 0.11569 0.04519 0.78070 •0.7076 1.231 6.0353 59 33 N. 0.06789 9.73784 0.11915 0.04153 0.78610 •0.6233 1.911 6.1109 M 94 a. 0.08603 9.77410 nO. 10856 0.03788 0.30968 •0.3617 1.191 1.6306 81 95 N. 0.10343 9.80893 0.10493 0.03493 0.79714 •0.9394 1.170 6.9682 • • 8. 0.19016 9.84338 •0.10113 0.03045 0.96119 •0.6.135 1.151 1.8947 S3 97 N. 0.13697 9.87460 0.09754 0.09667 0.80840 •0.7993 1.131 6.4329 M • 8. 0.15189 9.90570 •0.09382 0.02381 0.30870 •0.5583 1.111 9.0351 65 .;,., N. 0.16683 9.93570 0.09003 0.01898 0.81991 •1.1461 1.091 6.6058 ac .M .r 1 N. 0.18139 9.96470 0.08633 0.01509 0.89574 •0.3809 1.072 6.B948 67 9 k. 0.19536 9.99378 0.08349 0.01103 0.83163 •1.0799 1.053 6.7862 68 3 N. 0.90895 0.01996 0.07858 0.00709 0.83757 •0.9031 1.033 6.8797 69 N. 8.39313 0.04633 0.07473 0.00307 0.84355 •0.8513 1.014 6.9752 70 N. 0.34738 0.09678 0.06697 9.99498 0.85586 •0.9394 0.977 7.1793 71 8. 0.35943 0.19093 •0.06307 9.99087 0.47148 •0.5185 0.959 9.9613 79 N. 0.97119 0.14444 0.05917 9.98880 0.86793 nO.9294 0.941 7.3759 73 8. 0.98984 0.16734 •0.05596 9.98966 0.50683 •0.8129 0.923 3.2194 74 10 N. 0.99379 0 18984 0.05134 9.97854 0.88035 •0.7708 0.906 7.5918 75 11 8. 0.30467 0.91140 nO. 04743 9.97438 0.54046 •0.7993 0.889 3.4711 78 19 N. 0.31598 0.33289 0.04351 9.97033 0.89289 •0.9913 0.879 7.814.1 77 13 8. 0.33564 0.95334 •0.03959 9.96605 0.57984 •0.9243 O.KiS 3.7380 78 14 N. 0.3X7.1 0.97358 0.03586 9.96189 0.90555 ii0.9V3l KM 8.0455 T9 15 8. • 0.34584 V.99334 •0.03179 9.95771 0.80343 •0.8693 + 0.833 + 4.0196 EQUATIONS OP CONDITION. CCXXX1 FORMATION OF SUPPLEMENTARY EQUATIONS OF CONDITION. MARS II. Meridian, Santiago. N°. Date. Limb. log. I. log. C. log. e. log. g. log. 8. log. n. &8. S. 1 1851.— Dec.31 S. nO. 30522 0.21250 nO. 12038 0.02396 ..9.81351 0.8573 + 1.117 — 0.6509 2 22 S. nO.29437 0.19080 r.0. 12362 0.013760 «9. 83347 0.4914 1.136 0.6815 3 26 s. nO. 24801 0. (1980S nO. 13606 0.04183 n9. 89409 0.8388 1.212 0.7836 4 27 S. nO. 23560 0.07326 nO. 13901 0.04536 n9 90531 0.5315 1.232 0.8041 5 30 s. nO. 19613 9.99432 nO. 14745 0.05528 «9. 93064 0.7634 1.290 0.8524 6 31 s. nO. 18212 9.96630 nO.15011 0.05849 n9. 93671 0.7160 1.309 — 0.8644 7 KC2.— Jan. 1 N. nO. 16745 9.1)3696 0.15268 0.06264 0.59890 nO.5051 1.334 + 3.9710 8 4 N. nO.12112* 9.84430 0.18177 0.07065 0.60259 0.5911 1.385 4. 01)49 9 5 N. nO. 10443 9.81092 0.16389 0.07308 0.60389 0.9243 1.400 4.0169 10 10 N. liO. 00976 9.61158 0.17134 0.08581 0.61256 0.8388 1.485 + 4.U979 11 16 8. H9.85965 9.32136 nO. 178-10 0.09658 n 9. 86829 0.7404 1.560 — 0.7732 12 17 N. n9.82c68 9.25942 0.17909 0.09790 0.63053 0.6335 1.570 + 4.2710 13 25 N. 119.44026 8.48258 0.17936 0.10256 0 65634 nO.O 00 1.603 4.5325 14 27 N. n9. 24545 8.09296 0.17794 0.10209 0 66349 /0.6021 1.601 + 4.6078 15 Feb. 1 S. 8.86368 7.32942 nO. 17192 0.09809 n9. 19618 0.8041 1.571 — 0.1571 16 2 N. 9.0S945 7.78096 0.17030 0.09682 0.68652 nO.0414 1.562 + 4.8587 17 4 N. 9.34731 8.296C8 0.16069 0.09383 0.69473 9.4771 1.541 4.9514 18 8 S. 9.62506 8.85218 nO. 15802 0.08618 9.43696 .,9.3010 1.487 0.2735 19 9 N. 9.67355 8.94916 0.15557 0.08395 0.71640 n9.4771 1 472 5.2047 SO 18 S. 9.96379 9.52964 nO. 12930 0.05869 0.02386 9.6021 1.310 1.0565 91 19 N. 9.98670 9.57546 0.12601 0.05541 0.76483 nO.4914 1.290 5.8187 23 • 8. 0.00847 9.61900 nO. 12261 0.05-214 0.09237 nO.5563 1.272 1.2370 23 21 N. 0.02919 9.66044 0.11918 0.04862 0.77534 nO.9294 1.251 5.9613 24 Mar. 12 N. 0.31538 0.23282 0.04351 9.97023 0.89289 nl. 0086 0.879 7.8143 25 13 S. 0.32564 0.25334 nO. 03959 9.96605 0.57264 nO.9191 0.855 3.7380 36 14 N. 0.33575 0.27aS6 0.03568 9.96189 0 90555 nO.9138 0.839 8.0455 27 15 8. 0.34564 0.29334 .,0.03179 9.95771 0.60343 nO.9031 + 0.823 + 4.0126 FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. (FROM DIRECT MEASUREMENT OF DIAMETERS.) MARS II. Meridian, Santiago. N'. Date. Wash. M. T. Obs'd T. r. n. log. C. log. S. log. n. 37 1852,-January 29 .4727 ii 8.10 6.99 — 1.11 0.17595 0.39785 nO.0453 38 30 .4689 7.95 6.97 0.98 0.17474 0.39712 W9.9912 39 31 .4650 7.55 6.95 0.60 0.17340 0.39633 n9.7782 47 Febni'y 10 .4278 7.00 6.62 — 0.38 0.15300 0.38422 J19.5798 FORMATION OF EQUATIONS OF CONDITION. MARS II. Equatorial, Washington. N'. n «. Limb. log. b. log. C. log. g. log. S. log. n. k\ S, P- 1 1852.— Jan. 24 N.8. n9. 51690 8.63586 n9, 66275 9.40552 0.2041 +0.212 +0.2544 3.92 2 M N.S. n9. 36013 8.32232 n9. 65705 9.52866 0.206 0.3378 3 30 N.8. n8. 4386-2 6.47930 n9. 58689 9.76827 0.149 0.5865 4 Feb. 9 N.S. 9.08058 7.78322 !,'.!. til.T,! 9.85449 9.9542 0.169 0.7153 4.31 5 3 N.S. 9.23160 8.06526 n9. 59986 9.89437 0.2304 0.158 +0.7841 4.15 CCXZZ11 EQUATIONS OF CONDITION. FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. MARS II. Equatorial, Washington. Ti*. Data. Wash. It.T. oix'd r. 2r. i/>A- =F*Z>A. r.- n. lof. 0. I0f.«. tog.n. P' 1 18SJ.-J*n. S4 .«45 it 10.17 0.2SO n + 1.388 // + 0.98 n 7.05 n —8.78 0.18003 0.40031 •0.4440 3.14 a • .4M 8.M O.'JSO 1.909 0.31 7.04 9.94 0.17905 0.39879 •0.3502 3.88 3 30 .4509 9.S7 0.839 1.0*7 0.35 C.97 3.33 0.17533 0.39749 •0.3874 9.67 4 r.i,. -j .4077 9.53 0.077 o.esi 0.07 6.91 S.51 0.17039 t. 39453 •0.3997 3.69 5 3 .4090 9.74 0.299 + 0.830 + 0.25 ' 6.88 —2.58 0.16864 0.39348 •0.4116 3.86 FORMATION OF EQUATIONS OF CONDITION. MARS n. Meridian, Greenwich. (OBSERVED CENTEB, oa BOTH LIMBS.) N'. Date. lof. I. log. C. log. g. log. 8. log. n. #». 8. 1851.— Dee. 8 •0.43772 0.49750 •9.79580 9.75290 •9.30103 +0.3905 +0.5852 38 •0.25040 0.10386 •9.84487 •9.32695 0.74819 o. •!-:<:, —0.2133 1858.— JMI. S •,0.10775 9.81756 •9.85804 •9.5388S 0.81954 0.5201 ii :n> 7 •0.07360 9 74736 •9.85916 •9.S3920 0.77815 0 5228 0.3461 9 •0.03435 9.67076 •9.85961 •9.53840 0.86923 0.5239 0.3376 30 •9.72785 9.05776 •9.85341 •9.13090 0.57978 0.5068 0.1321 32 •9.63826 8.87858 •9.84938 •8.82020 0.63325 0.4908 •.Ml H •9.58541 8.77288 •9.84770 •8.47567 0.76343 0.49.,9 —0.0299 28 •9.13333 7.86879 •9.83753 9.96387 0.59106 0.4733 +0.1836 10 • r.8 93513 7.47232 •9.83517 9.36880 0.41497 0.4681 0.2327 11 30 •8.56015 6.72338 •9.83374 9.45301 0.39794 0.4629 0.3838 19 Feb. 3 9.91196 8.02598 •9.83220 9.70706 9.9i424 0.4410 MM 13 6 9.49464 8.S9134 •9.81355 9.84538 9. 31)103 0.4237 0.7003 14 » 9.66445 8.93096 •9.80438 9.95890 •9.60208 0.4062 0.9097 15 10 9.70*93 9.01996 •9.80124 9.99977 •9.47719 0.4004 0.9835 16 11 9.74930 9.10066 •9.79805 0.03507 •9.95424 0.3945 1.0594 17 14 9.85183 9.30570 •9.78827 0.11361 •0.33223 0.3772 tJM 18 18 9.95915 9.53036 •9.77484 0.21648 •0.30413 0.3546 1 .6462 19 30 0.00438 9.61063 •9.76M3 0.36286 •0.65321 0.3436 1.8317 SO 36 0.11693 9.83592 •9.74743 0.38657 •0.74819 0.3125 2.4354 SI H 0.14881 9.89968 •9.74057 0.42359 •0.73428 0.3028 2.6531 22 Mar. 9 0.19264 9.98734 •9.73038 0.47596 •0.73239 B.MB 3.9020 23 3 0.30632 0.01470 •9.72701 0.49263 •0.70757 0.3845 3 1091 94 4 0.21957 0.04130 •9.72305 0.50900 •0.80618 0.2801 3.2283 35 6 0.93345 0.06696 •9.79033 0.52498 •0.72428 0.3758 3.3493 96 6 0.34495 0.09198 •9.71701 0.54063 •0.85126 0.2717 3.4733 37 8 0.96893 0.13993 •9.71045 0.57103 •0.86923 0.3638 3.7241 38 9 0.38049 0.16090 •9.70719 0.58578 •0.83607 0.2603 MM 89 19 0.31393 0.92830 •9.69757 0.638(8 •0.86332 0.2484 4.3509 30 17 0.36999 0.32790 •9.68317 O.C948G •0.90649 0.2314 4.9529 31 18 0.3749S 0.34650 •9.67918 0.70751 •0.98677 0.3283 5 0992 • 90 0.39033 0.38252 •9.67331 0.73229 •0.94448 li/.'-JI 6.3975 33 93 0.407)9 0.41710 •9.66780 0.75613 •0.91904 0.2166 t.7039 M 33 0.41591 0.43390 •19.66477 0.76785 •088649 0.9136 5.8594 95 35 0.43234 0.46654 19.63894 0.79078 •0.95904 0.3083 6.1770 3( 37 0.44796 0.49798 «9«5389 O.H1306 •0.99564 0.3031 +6.S091 EQUATIONS OP CONDITION. CCXXXlll FORMATION OF EQUATIONS OF CONDITION. MARS II. Meridian, Cape of Good Hope. (OBSEKVED CENTER.) N°. Date. log. b. log. C. log. g. log. 8. log. H. Jf. S. I 1851— Dec. 22 nO. 99707 0.19630 0.02949 0.21998 0.60959 1.15 +1.6595 2 36 nO. 25102 0.10410 0.04369 0.20253 0.57634 1.23 1.5941 3 29 nO.31398 0.02802 0.05389 0.19474 0.54654 1.28 1.5658 4 30 nO.19951 0.00108 0.05717 0.19318 0.60206 1.30 1.5602 • 5 1852— Jan. 1 nO. 17127 9.94460 0.06354 0.19153 0.65225 1.34 1.5543 C 3 nO. 15644 9.91494 0.06661 0.19151 0.63043 1.36 1.5542 7 3 nO. 14107 9.88430 0.06959 0.19195 0.47276 1.38 1.5558 8 S nO. 10861 9.81928 0.07533 0.19451 0.50651 1.41 1.5649 9 9 nO.03537 9.67380 0.08556 0.20515 0.4183V 1.48 1.6038 10 10 nO.OH94 9.63194 0.08783 0.20890 0.35793 1.50 1.6177 11 13 119.97100 9.54406 0.09200 0.21762 0.44091 1.53 1.6505 13 13 n9. 94734 9.49654 0.09391 0.93259 0.52375 1.54 1.6695 13 14 n9.92210 9.44636 0.09566 9.22769 0.50651 1.55 1.6900 14 15 n9.89540 9.39286 0.09727 0.23353 0.37291 1.57 1.7121 IS 16 D9.8S698 9.33602 0.09875 0.23952 0.40140 1.58 1.7359 16 19 n9. 76845 9.13896 0.10225 0.25921 0.30103 1.60 1.8164 17 30 •9.72992 U. 06190 0. 10311 0.26633 0.16733 1.61 1.8464 18 21 «9.68764 8.97734 0.10384 0.27367 0.42651 1.61 1.8779 IS 33 n».64080 8.88369 0.10435 0.98122 0.07188 1.62 1.9108 30 23 n9. 58829 8.77864 0.10473 0.38899 9.86923 1.62 1.9453 91 34 nS. 53855 8.65916 0.10493 0.29693 9.11394 1.62 1.9812 39 36 n9.376?6 8.35558 0.10486 0.31338 9.70757 1.69 2.0577 93 27 n9.37484 8.15174 0.10456 0.32183 T.9.79934 1.63 3.0981 34 29 K8.94785 7.49776 0.10351 0.33917 n9.51851 1.61 3.1836 25 Feb. 3 9.04355 7.68916 0.09950 0.37530 nO. 26007 1.58 2.3730 96 3 9.30509 8.0J224 0.09809 0.38455 119.94939 1.56 3.4241 97 4 9.33357 8.34790 0.09656 0.39391 nO. 10380 1.56 3.4769 98 5 9.41411 8.43028 0.09488 0.40324 nO.99447 1.55 2.5307 99 8 9.49108 8.58499 0.09307 0.41283 nO. 25768 1.54 2.5872 ao 7 9.55583 8.71379 0.09112 0.42238 nO.33646 1.52 2.6447 31 9 9.66904 8.92614 0.08683 0.44168 nO. 55991 1.49 2.7649 33 10 9.70677 9.01560 0.08447 0.45139 nO. 58433 1.48 2.8274 33 11 9.74733 9.09670 0.08201 0.46114 nO. 62014 1.46 2.8916 34 19 9.76440 9.17U86 0.07944 0.47094 nO.51455 1.44 2.9576 35 13 9.81857 9.23920 0.07675 0.48077 nO. 38021 1.42 3.0253 35 14 9.85035 9.30956 0.07395 0.49063 nO. 44248 1.41 3.0948 37 16 9.90743 9.41690 0.06805 0.51040 nO.60097 1.37 3.2389 38 17 9.93341 9.46888 0.06497 0.52330 nO. 69548 1.35 3.3136 39 18 9.95793 9.51793 0.06179 0.53021 nO.68305 1.33 3.3901 40 19 9; 98114 9.56434 0.05853 0.54014 nO. 70673 1.31 3.4685 41 20 0.00318 9.60842 0.05517 0.55008 nO.81090 1.29 3.5488 43 91 0.09415 9.65036 0.05175 0.56001 nO.58883 1.37 3.6309 43 93 0.06329 9.72864 0.04470 0.57985 ,10.81491 1.22 3.8006 44 34 . 0.08161 9.76538 0.04109 0.58977 nO. 86510 1.21 3.8884 45 25 0.09919 9.80044 0.03741 0.59969 nO. 87632 1.19 3.9782 46 28 0.14803 9.89810 0.03607 0.629-20 nO. 90526 1.13 +4.2579 Z 6° EQUATIONS OF CONDITION. FORMATION OF EQUATIONS OF CONDITION. MARS II. Meridian, Kremsmiinster. (OBSERVED H*. Due. I*. 6. lOf. C. •Of. 0. ICf. 9. io(.n. V. «. 1 iaaa-Ju. an •9.79M3 9.08019 •9.80011 •8.71850 0.00000 + 0.398 — 0.0533 1 94 •9.59777 8.85780 •9.79257 8.94498 0.3CT94 0.385 •f 0.0681 3 Feb. 8 9.81988 8.91770 •9.75141 9.95051 9.47719 0.318 0.9131 4 9 9.88981 8.99738 •9.74818 9.99317 9.30103 0.314 0.9844 B 10 (.70798 9.01689 •9.74494 0.09441 9.47719 0.309 1.0578 6 94 0.08183 9.78573 •9.69755 0.38031 •0.36173 0.948 I.MJ 7 95 0.09940 9.80068 •9.89414 0.37929 •0.76343 0.24.1 MM 8 98 0.11898 9.83469 •9.89075 0.39788 •0.95537 0.241 9.4997 0 M«r. 8 0.94448 0.09098 •9.68101 0.54788 0.43138 0.910 3.5307 10 7 0.89883 0.11539 •9.85783 0.56988 •0.88081 0.907 3.6549 11 8 0.98848 0.13898 •9.65466 0.57763 •0.54407 0.904 3.7813 19 14 0.33340 0.98888 •9.83830 0.660711 •1.03743 0.187 4.5799 13 18 0.35305 0.30818 •9.63043 0.68669 •0.88081 + 0.182 •f 4.8806 EQUATIONS OF CONDITION. CCXXXV FORMATION OF EQUATIONS OF CONDITION. VE.VUS I. Equatorial, Santiago. N'. Date. Limb. log. 6. log. C. log. 6. log./. tot-g- log. S. l»g-W. F. S. P- 1 ISSO.-Oct. 19 N. nO. 45226 0.50658 0.24506 nO. 36914 9.91385 0.41766 0.5911 + 0.673 + 2.6161 5.03 3 30 N. nO. 44462 0.49130 0.25080 nO. 11035 9.89115 0.55467 0.4624 0.606 3.5865 5.13 3 33 N. nO.43873 0.45950 0.26364 0.23558 9.90385 0.81619 0.2788 0.642 6.5493 5.30 4 33 N. nO.42059 0.44324 0.26862 nO. 45801 9.90874 0.28377 0.6021 0.633 1.9221 5.29 5 34 N. nO. 41237 0.42680 0.27461 nO. 02861 9.87639 0.56272 0.5563 0.566 3.6536 5.36 6 35 N. nO. 40372 0.40950 0.28077 0.23646 9.94802 0.81649 0.1761 0.787 6.5537 5.04 7 36 N. nO. 39521 0.39348 0.28696 0.27582 9.89323 0.81888 0.6021 0.612 6.5899 5.15 8 29 N. nO. 36838 0.33882 0.30578 0.77572 9.85101 1.02302 nO.1139 0.504 10.5444 3.10 9 N. nO.36783 0.33770 0.31. «17 0.75834 0.00090 1.02539 nO.OOOO 1.004 10.6020 3.48 10 30 N. nO. 35864 0.31934 0.31246 0.53606 9.95368 0.91332 7.9. 6990 0.808 8.1906 3.75 11 31 N. nO. 34900 0.30006 0.31899 9.4E834 9.96579 0.70396 0.0792 0.854 5.0578 3.38 19 Nov. 1 N. nO. 33931 0.28068 0.32546 0.52297 9.93619 0.90510 0.0000 0.745 8.0372 4.99 13 3 N. nO. 32916 0.26038 0.33210 0.28396 9.96853 '0.82535 o'.oooo 0.865 6.6888 5.13 14 4 N. nO. 30856 0.31918 i 0.34545 8.67761 9.93514 0.67451 0.1461 0.708 4.7262 4.39 15 6 N. nO.38655 0.17516 0.35922 0.24289 9.97340 0.81553 9.9542 0.885 6.5391 4.78 16 7 N. nO. 37520 0.15246 0.36613 0.27421 9.97844 0.82551 nO.0792 0.905 6.6913 4.72 17 8 N. n0.2635« 0.12918 0.37308 0.35740 9.98672 0.85248 n9.6990 0.941 7.1197 4.75 18 10 N. f>0.23955 0.08116 0.38699 nO. 16224 9.92688 0.51843 9.0000 0.714 3.2994 1.66 19 11 N. nO. 22639 0.05484 0.39435 n9. 09061 0.03273 0.68885 9.6021 1.163 4.8849 4.95 20 13 N. nO. 19984 0.00174 0. 40666 0.33949 0.02824 0.85940 n9.4771 1.139 7.2346 4.98 31 14 N. nO. 18590 9.97386 0.41587 0.08486 0.06303 0.80515 0.0792 1.337 6.3848 5.05 it 15 N. nO. 17200 9.94606 0.43285 9.21139 9.98703 0.71418 n9.0000 0.942 5.1782 3.06 33 N. MO. 17154 9.94514 0.42308 9.40243 0.06865 0.73797 9.3010 1.372 5.4697 4.44 94 16 N. nO. 15874 9.91554 0.43026 nO. 16741 0.06661 O.S7717 0.1461 1.359 3.7772 4.79 95 17 N. nO. 14158 9.88523 0.43739 0.15851 0.04133 0.82350 119.8451 1.210 6.6605 4.40 96 18 N. nO.12.J33 9.85273 0.44474 0.25924 0.09638 0.85898 0.0792 1.559 7.2273 4.69 S7 « N. nO. 07387 9.74980 0.46(13 n8. 84261 0.09161 0.73774 0.1761 1.525 5.4669 5.30 38 H N. nO. 01487 9.63180 0.48724 9.54432 0.15911 0.79637 9.8451 3.081 6.2570 2.61 39 • N. fi9.99336 9.58858 0.49410 8.97081 0.18257 0.78809 n9.6021 3.318 6.1389 4.17 30 • If. n9. 97003 9.54313 0.50099 0.42493 0.24616 0.95460 9.6990 3.107 9.0075 3.12 31 38 N. n9. 93158 9.44522 0.51380 0.34820 0.21362 0.93314 nO.0792 3.674 8.5733 4.13 33 99 N. n9. 89453 9.39112 0.53010 0.44737 0.24244 0.96955 0.5315 3.054 9.3228 1.64 33 30 N. t.9. 86609 9.33424 0.52613 0.02551 0.24467 0.88404 B9.8451 3.085 + 7.6567 4.35 34 Dee. 3 8. n9. 76708 9.13623 nO.54387 0.20978 0.27371 «9. 64286 9.8451 3.527 — 0.4394 3.83 35 1851.— Jan. 6 8. 0.05510 9.71226 nO. 48344 nO. 26465 0.18047 nO. 23484 0.8325 2.295 — 1.7173 3.61 36 7 S. 0.07382 9.74970 nO. 47643 9.19507 0.17018 9.58939 0.8195 2.190 + 0.3885 3.61 37 8 8. 0.09106 9.78418 nO. 46963 0.24339 0.15789 0.31865 tlO.2304 2.069 2.0P28 3.91 38 9 8. 0.10827 9.81860 nO. 46251 0.46683 0.15175 0.53006 nO.3617 3.011 3.3889 4.31 39 10 8. 0.12479 9.85164 nO. 45537 0.57124 0.14853 0.63587 nO.4472 1.982 4.3238 4.75 40 11 8. 0.14056 S. 86318 nO. 44884 0.61711 0.15859 0.69206 nO.6335 2.076 4.9211 4.13 41 19 8. 0.15621 9.91448 nO. 44089 0.62390 0.12823 0.70279 nO.6532 1.805 5.0441 5.11 49 14 S. 9.97332 nO.42634 i 0.52292 0.10123 0.64350 nO.2304 1.594 4.4005 5.31 43 15 8. 0.19946 0.00098 nO. 41911 9.99034 0.09731 0.34033 nO.7404 1.565 2.1894 5.13 44 16 8. 0.30395 0.02796 nO. 41188 n9. 22737 0.09001 0.05771 mi. HIM 1.514 + 1.1421 5.00 45 17 8. 0.32605 0.05416 nO. 40465 nO.IK-IIH 0.08043 n8. 79099 nO.3424 1.449 — 0.0618 4.74 46 18 8. 0.23866 0.07938 nO. 39751 0.24180 0.08232 0.53011 nO.6532 1.461 •f 3.3893 4.47 47 90 8. 0.26303 0.12813 iiO. 38322 n9. 77909 0.06417 0.11949 nO.5185 1.344 1.3167 4.87 48 94 e. 0.30803 0.91813 nO. 35515 0.94341' 0.02619 0.62625 nO.6532 1.128 + 4.2291 4.43 49 • 8. 0.32890 0.25986 nO. 34144 nO. 52856 0.00847 n9. 77866 n0.415fl 1.040 — 0.6007 4.96 50 97 8. 0.33896 0.27998 nO.33467 0.22290 9.99928 0.66238 nO.6721 0.997 •f 4.5960 4.31 SI aa 8. 0.34881 0.29968 nO. 32796 n9. 99269 9.98932 0.32033 nO.5682 0.952 2.0909 4.71 S3 Feb. 5 8. 0.42038 0.44282 nO. 27670 9.68726 9.92999 0.68588 nO.5052 0.724 4.8516 5.15 53 N. 0.42045 0.44296 0.27665 9.91190 9.91705 1.03900 nO.7243 0.682 ! 10.9394 4.98 £4 6 N. 8. 0.42864 0.45934 — 0.08575 9.90467 0.93369 nO.6721 0.645 8.5840 5.12 55 7 N. 8. 0.43660 0.47526 — n9. 86297 9.91007 0.83273 nO.3617 0.661 6.8035 4.69 56 10 N. S. 0.45984 0.52174 — n9. 29710 9.88174 0.89048 nO.6990 + 0.580 -J- 7.7710 4.79 CCXXXV1 EQUATIONS OF CONDITION. FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. VESTS t. Equatorial, Santiago. IT. Due. Wub. M.T. Ota'd r. 2r. \Dfr. TrA*.- r.. n. lot- e. iof. a. !<>«. n. p- it H If // n 54 ISSI.-Feb. t .6897 17.03 0 439 -0.700 -0.31 16.15 —1.32 0.97059 C. 45781 tt«. 1908 5.00 58 7 .8551 18.17 0.003 n M -0.39 I5.W —0.89 0.9M51 9.453(9 »!!.-.<" 4.94 at 10 .6004 IS »4 1.048 —0.488 -0.il 15. » — i.as 0.24673 0.44168 n0.096» 4.S4 FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. \ r.M - I. Equatorial, Santiago. (fBOH DIRECT MEA(CBEMKNT OF DIAMKTSBS ) n: OMe. Wub. M.T. CMu'dT. N*. Ob.. rt. n. y>s.e. log. 8. log. n. P- 1850.— Nov. 15 .2798 n 2369 5 n 9J.94 // — 0.75 0.49984 0.56199 n».87;>l 3.00 19 .3060 93.17 4 94.53 + 1.38 0.45194 0.58339 •.1319 9.88 Dee. 5 .3007 31.55 10 30.93 — 0.69 0.55979 0.65998 •9.7959 4.00 48 ISSl.-Ju. 94 .69*5 SO. 08 10 19.63 — 0.44 0.35488 0.51374 •9.8484 4.00 49 96 .7000 19.88 10 19.00 — 0.88 0.34111 0.50495 •9.9445 4.00 50 97 .7050 18.04 10 18.71 — O.J3 0.33431 0.49959 •9.5185 4.00 51 93 .6865 18.90 10 18.43 - 0.47 0.39771 0.49S09 •V.6791 4.00 5053 Feb. 5 .7090 17.06 10 16.37 0 70 0 97639 0 46085 •9 8430 4 no 54 6 .7077 16.60 10 16.14 — 0.46 0.97094 0.45684 «9.6674 ,uu 4.00 55 7 • .7011 16.81 10 15.93 — 0.90 0.98494 0.45985 1(9.9518 4.00 58 10 .7067 15.84 n 15.98 — 0.56 0.94644 0.44150 •9.7590 4.00 FORMATION OF EQUATIONS OF CONDITION. VENUS 1. Meridian, Santiago. n: D.W. limb. I0i.fe. log. C. log.6. log 0. log. 8. i"g. n. ifc». 8. i 1830,-Oct. 19 N. •0.45409 0.51094 0.94388 9.31194 0.83859 1.11797 + 0.042 + 4.3503 < H N. •0.44839 0.49484 0.94948 9.30837 0.63448 1.08638 0.042 4.3093 3 91 N. •0.43B5S 0.47916 0.9S53S 9.30585 0.63057 0.77815 0.041 4.9714 4 • N. •0.43057 MHM 0.98198 9.30310 0.89693 0.73239 0.040 4.2358 » 93 N. •0.42945 0.446SW 0.96797 9.99803 0.69358 0.84510 0.040 4.9033 • M N. •0.41416 0.43088 0.97333 9.98646 0.69048 0.92949 0.039 4.1731 7 9ft N. •0.40571 0.41348 0.97944 8.99450 0.61783 0.80810 0.039 4.1460 8 • N. •0.39709 MHM 0.98669 9.98313 0.61909 0.039 4.1918 ( 97 N. •0.38031 •.•M 0.99186 MM 8.61985 0.75587 0.038 4.1007 It • N. •0.37934 0.38074 0.9*816 9.99918 0.61091 0.84510 0.033 MM 11 30 N. •0.360H9 0.39370 0.31098 9.99398 0.80804 O..VI5I5 MM 4.0555 11 31 N. •0.3S198 0.30458 0.31748 9.99581 0.60701 0.74038 0.039 4.0450 a HOT. 1 I*. •0.34148 IJHH 0.39401 ». 298.15 0.80838 0.90849 0.040 4.0399 M 9 N. •0.33149 0.98504 0.33084 9.30179 0.80608 0.98890 0.040 4.0372 15 4 N. •0.31077 0.99360 0.34405 9.31083 0.60846 + 0.049 + 4.0408 EQUATIONS OF CONDITION. VK\ rs i. Meridian, Santiago — Continued. CCXXXVll N'. Date. Limb. log. b. log. C. log. 6. log. g. log. S. log. n. F. S. 16 1850.— NOT. 5 N. nO. 30002 0.20210 0.35085 ' 9.31623 0.60717 0.41497 + 0.043 + 4,0474 17 7 N. nO.27771 0.15748 0.36461 9.32945 0.60963 0.76343 0.046 4.0704 18 8 N. nO. 26611 0.13428 0.37157 9.33718 0.61139 0.79239 0.047 4.0869 19 10 N. nO. 24195 0.08596 0.38562 9.35480 0.61593 0.68194 0.051 4.1298 90 11 N. nO. 22935 0.06076 0.39272 9.36454 0.61869 0.79934 0.054 4.1561 91 13 N. • nO.20298 0.00802 0.40700 9.38614 0.62518 0.30103 0.059 4.2187 93 14 N. nO. 18918 9.98042 0.41419 9.39776 0.62893 0.49831 0.062 4.2552 93 15 N. nO. 17493 9.95190 0.42140 9.40992 0.63290 0.88081 0.066 4.2944 94 16 N. nO. 16019 9.92244 0.42861 9.42273 0.63730 0.75587 0.070 4.3381 25 17 N. •0.14493 9.89192 0.43584 9.43609 0.64193 0.44716 0.074 4.3846 36 18 N. nO. 12910 9.86026 0.44306 9.41991 0.64682 n9. 77815 0 079 4.4342 27 19 N. nO. 11971 9.82748 0.45025 9.46401 0.65196 0.62325 0.085 4.4870 98 90 N. nO. 09566 9.79338 0.45742 9.47862 0.65733 0.51851 •.091 4.5429 98 91 N. nO. 07792 9.75790 0.46456 9.49357 0.66298 Qx 66276 0.097 •f 4.6023 30 23 8. nO. 04011 9.68228 nO. 47865 9.52358 nO. 51751 0.14613 0.111 — 3.2924 31 96 N. n9. 97644 9.55494 0.49917 9.57266 0.69387 0.41497 0.140 •f 4.9417 33 97 N. f>9.95293 9.50792 0.50577 9.58931 0.70050 0.30103 0.151 5.0177 33 98 N. 119.99811 9.45828 0.51223 9.60587 0.70729 0.69897 0.163 5.0968 34 30 N. n9. 90189 9.40584 0.52460 9.6S925 0.71926 0.47712 8.190 5.2391 35 Dec. 9 N. n9.81165 9.23536 0.53615 9.67263 0.73458 0.49136 0.221 5.4273 38 4 N. n9.73916 9.08038 0.54664 9.70557 0.74819 0.63347 0.258 5.6000 37 5 N. n9.69781 8.99768 0.55145 9.72182 0.75494 0.59106 0.271 5.6878 38 8 N. •9.54316 8.68838 0.56382 9.76895 0.77450 0.49136 0.345 5.9497 39 10 N. 09. 39742 8.39690 0.57014 9.79848 0.78678 0.7S587 0.395 6.1205 40 (19) N. •9.17649 7.95504 0.57471 9.82605 0.79829 0.81291 0.449 + 6.2847 41 (13) 8. n9. 00156 7.60206 nO. 57622 9.83811 nO. 50195 0.51851 0.474 — 3.1765 49 91 8. 9.54131 8 68468 nO. 56888 9.92114 •O.S9366 0.74819 0.695 2.4755 43 92 8. 9.59926 8.80058 nO. 56574 9.92620 nO. 37562 0.20413 0.711 2.3748 44 99 8. 9.87279 9.34764 nO.53348 9.93853 nO. 18835 0.56820 0.754 1.5789 45 31 8. 9.92714 9.45634 nO. 52168 9.93539 nO. 12424 0.70757 0.744 1.3312 46 1851.— Jan. 5 8. 0.03942 9.68090 nO. 48901 9.91822 n9. 83270 0.636 0.6803 47 6 8. 0.05877 9.71960 nO. 48209 9.91208 •9.739-26 0.667 0.5486 48 7 8. 0.07729 9.75664 nO. 47509 9.90651 •9.61690 9.60206 0.650 0.4139 49 8 8. 0.09504 9.79214 nO. 46801 9.90055 •9.44436 0.633 0.2782 90 9 8. 0.11911 9.82628 nO. 46087 9.89421 n9. 14983 0.07918 0.614 0.1412 51 10 8. 0.12854 9.85914 nO.45376 9.88757 n7. 55630 9.90309 0.596 — 0.0036 59 11 8. 0.14437 9.89080 nO. 446-18 9.88058 9.13354 0.38021 0.577 + 0.1360 53 19 8. 0.15964 9.92134 nO. 43925 9.87337 9.44107 n9. 95424 0.558 0.2761 54 13 8. 0.17439 9.95084 nO. 43200 9.86586 9.62066 9.60206 0.539 0.4175 55 14 8. 0.18866 9.97938 nO.49475 9.85812 9.74796 9.84510 0.520 0.5597 56 15 8. 0.90948 0.00702 •0.41751 9.85021 9.84720 9.47712 0.502 0.7034 57 16 8. 0.21587 0.03380 •0.41028 9.84210 9.92834 9.84510 0.483 0.8479 58 17 8. 0.93886 0.05978 nO.40307 9.83382 9.99730 9.77815 0.465 0.9938 59 90 8. 0.96567 0.13340 n». 38183 9.80829 0.15791 •0 32223 0.414 1.4385 60 91 8. 0.97798 0.15662 •0.37456 9.79958 0.20115 nO. 00000 0.397 1.5891 61 92 8. 0.28858 0.17992 nO. 36754 9.79084 0.24075 •9.00000 0.383 1.7408 69 93 8. 0.29961 0.20198 nO.36571 9.78720 0.27286 •0.43136 0.375 1.8744 63 94 8. 0.31035 0.22276 nO. 35365 9.77323 0.31158 •0.97875 0.352 2.0492 64 25 8. 0.39084 0.24374 nO. 34679 9.76442 0.34345 •0.51851 0.338 2.2052 65 36 8. 0.33108 0.26422 n0.33B98 9.75557 0.37342 •9.77815 0.324 2.3628 66 27 8. 0.34109 0.28424 nO. 33323 9.74679 0.40170 •0.93045 0.312 2.5217 67 98 8. 0.35087 0.30380 nO. 32655 9.73805 0.42848 n9. 77815 0.299 2.6821 68 Feb. 3 8. 0.40536 0.41278 nO. 28781 9.68717 0.56538 0.00000 0.237 3.6760 69 5 8. 0.42210 0.44626 nO. 27541 9.67111 0.60431 o.oquoo 0.220 4.0208 70 6 8. 0.43034 0.46254 uO. 36933 9.66339 0.62277 n9. 60206 0.212 4.1954 71 7 8. 0.43823 0.47852 nO. 26329 9.65570 0.64066 0.27875 0.805 4.3718 79 10 8. 0.46134 0.53474 nO.24976 9.63813 0.69001 •.55630 + 0.189 + 4.8979 rcxsxvui EQUATIONS OF CONDITION. FORMATION OP ADDITIONAL EQUATIONS OP CONDITION. TBHCS I. Meridian, Santiago. (FROM DIRECT JUASCRJOttKT OF DIAXETKBS.) IT. DM*. Wuh. M.T. OUM r. r0. n. tog. «. log. «. lof. n. 1840.-OCL 18 .0988 a 14.94 f§ 15.18 II + 0.94 0.14368 0.43975 9.3809 90 .0985 14.87 15.39 + 0.59 0.94946 0.44.143 9.7160 ai .0984 15.64 15.59 — o.os 0.25535 0.44791 •8.6990 99 .0983 15.64 15.81 + 0.17 0.96128 0.45103 9.2304 93 .0981 15.99 16.03 0.11 0.96797 0.45491 9.0414 94 .0979 15.64 16.35 0.61 0.97332 0.45885 9.7853 35 .0977 15.78 16.48 0.70 0.97944 0.46385 9.8451 96 .0975 15.78 16.73 0.94 0.98563 0.46691 9.9731 97 .0071 15.78 16.96 1.18 0.89186 0.47103 0.0719 11 30 .0960 16.61 17.73 Ml 0.31098 0.48377 0.0473 13 NOT. 1 .0950 16.61 18.87 •f 1.65 0.32401 0.49358 0.3188 1C 9 .0934 19.69 19.43 — 0.96 0.35085 0.51097 n9.4150 17 7 .0907 19.06 20.06 + 1.00 0.36461 O.S9053 0.0000 18 8 .0898 19.83 90.38 + 0.55 0.37157 0.53540 9.7404 H 10 .0878 91.93 91.05 — 0.17 0.38569 0.53530 n9.2430 90 11 .0865 91.36 21.40 + 0.16 0.39972 0.54035 9.2175 SI 13 .0839 91.78 93.11 0.39 0.40700 0.55056 9.5119 » 14 .0834 99.34 92.48 0.14 0.41419 0.55574 9.1461 M 16 .0793 29.76 23.24 0.48 0.42831 O.S6620 9.6819 as 17 .0776 99.27 23.63 1.36 0.43584 0.57147 0.1335 as 18 .0757 23.73 24.03 0.39 0.44306 0.57876 9.4698 a? 19 .0738 33.73 24.43 0.69 0.45035 0.58207 9.8490 98 90 .0717 24.29 94.84 0.54 0.45742 0.58737 9.7364 99 91 .0696 25.06 25.35 + 0.18 0.46456 0.59267 9.9679 H 93 .0649 26.46 26.08 — 0.38 0.478(5 0.60391 n9.5855 • at .0563 26.46 97.34 + 0.87 0.49917 (.61870 9.9430 a 97 .0541 36.67 97.79 1.05 0.50577 0.62373 0.0212 33 96 .0511 97.16 38.18 1.09 (.51333 0.63865 0.0086 35 Dee. 9 .0379 99.74 29.77 0.03 0.53615 0.64707 8.4771 » 4 .0305 29.18 30.50 1.31 0.54664 0.65591 0.1189 37 S .0967 30.46 36.84 0.38 0.55145 0.65896 9.5798 IB 8 .0146 30.86 31.74 •f 0.88 0.56383 0.66865 9.9445 39 10 .00(0 31.53 M.l'J — 0.34 0.57014 0.673(2 •9.5378 40 19 .9973 3J.53 33.53 — 0.00 0.57471 0.67733 K7.6990 41 13 .9998 31.83 32.65 + 0.81 0.57623 0.67842 9.9119 EQUATIONS OF CONDITION. CCXXX1X FORMATION OF EQUATIONS OF CONDITION. VENTJS I. Equatorial, Washington. (OBSERVED BOTH LIMES.) N°. Date. log. b. log. C. log. g. log. 8. log. H. F S. P- 1 1850 Oct. 19 nO. 45285 0.50776 nO. 13267 nO.1761 4-1.841 +0.0252 3.93 i 8.40140 . 9 31 ..0. 43724 0.47654 nO. 14763 1 n9. 16316) nO.5798 1.974 —0.1456 3.54 3 23 nO. 42936 0.46078 nO. 16277 n9. 40329 0.5682 9.117 0.2531 3.61 4 38 nU. 37795 0.35796 nO. 19919 r.9.83841 0.6434 S.503 0.6893 3.10 5 Nor. 1 nO. 34004 0.28214 nO.93019 n9. S8753 0.6021 2.887 0.9717 3.50 6 3 nO. 33003 0.26212 nO. 23918 ..0.01870 0.5682 3.009 .0440 4.28 7 9 nO. 25343 0.10692 nO. 28539 nO. 15791 0.4914 3.721 .4385 3.07 8 10 t.0.24029 0.08264 nO. 30309 nO. 18721 9.3010 4.038 .5389 2.78 9 13 nO.30097 0.00400 nO. 31305 nO.31357 0.5563 4.237 .6352 3.43 10 14 >iO. 18716 9.97638 nO. 32269 nO. 22889 0.2553 X4.420 .6939 3.44 11 31 nO. 07529 9.75216 nO. 36674 nO. 29010 j.'J.OOOO 5.582 —1.9503 4.65 13 1851.— Jan. 13 0.17285 9.94776 nO. 31485 0.11757 t>0.9138 4.263 +1.3109 4.81 13 IS 0.30084 0.00374 nO.29178 0.21450 nO.6232 3.834 1.6337 4.83 14 84 0.30913 0.33032 nO.33993 0.47549 nO.5911 +2.923 +2.9887 3.43 FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. VENUS I. Equatorial, Washington. N'. Date. WiiMh. H.T. Obs'd r. 2r. 4A*.. =FrZtf.. r,. n. log. €. log. S. log. n. P- a 18M.-Oct. 21 .3638 it 17.57 0.990 // — 1.7» // —0.52 tt 15.63 n —2.37 0.25633 0.44784 nO.3747 2.67 22 .2489 17.03 0.017 1.676 +0.03 15.84 —1.25 0.96217 0.45160 nO.1303 1.84 38 .2484 17.98 0.304 0.992 —0.20 17.28 —0.82 0.29913 0.47586 n9.9138 2.25 Nor. 1 .2415 19.35 0.500 0.552 —0.28 18.31 —1.13 0.32498 0.49324 nO.0492 9.67 3 .2182 90.32 0.118 —0.444 —0.05 18.59 —1.88 0.33160 0.49774 nO.2253 3.69 9 .2346 23.63 0.332 +0.283 +0.09 20.74 —2.68 0.37960 0.53105 nO.4281 9.25 10 .9X2 19.83 O.S21 0.385 +0.09 21.10 +1.95 0.38667 0.53605 0.0969 1.71 .2208 39.14 0.404 0.383 —0.16 21.10 —1.09 0.38656 0.53597 nO.0374 1.95 13 .3313 29.39 0.997 0.677 +0.20 22.17 +0.18 0.40806 0.55132 9.2553 2.67 10 14 .2259 32.73 0 911 0.774 +0.16 23.54 —0.90 0.41523 0.55649 r.9.9542 9.67 11 31 .2188 35.07 0.030 +1.444 -0.04 25.31 +0.06 0.46562 0.59347 8.7782 4.06 12 1851.— Jan. 13 .7770 24.82 0.139 —0.159 —0.02 23.47 —1.45 0.43277 0.56923 nO.1614 4.34 13 15 .7593 94.55 0.119 -0.355 —0.04 92.70 —1.98 0.41839 0.55877 •I). 2967 4.57 14 34 .7533 30.59 0.129 +0.868 —0.11 19.60 —1.18 0.35444 0.51345 nO.0719 3.67 c-cxl EQUATIONS OF CONDITION. FORMATION OP EQUATIONS OP CONDITION. VKAUSI. Meridian, Greenwich. IT. Half. LlBb. lot- b. lof. C. lo,. gr. iof.«. lot. n. V «. 1 INO.-Oct IS B. •0.48381 0.56938 •0.90788 •9.97763 O.SSMl + 9.605 -0.9498 • 18 C. •0.47649 0.5S490 nO.91377 •8.63043 0.63949 9.676 — 0.04S7 3 81 N. •0.43856 0.47918 .rt). 24384 9.71965 0.93959 3.074 + 0.5160 4 Nov. 11 N. •0.39906 0.06016 •0.38364 •9.98195 0.58099 I.M — 0.9593 9 96 N. •9.9*579 9.45350 •0.49961 •0.93505 0.85948 9.989 1.7181 « 99 N. •9.89907 * 9.40030 •0.50563 •0.94175 0.91918 10.963 1.7448 7 Dec. 6 N. •9.64481 8.89188 nO. 54083 •0.98433 0.83315 13.069 1.8375 8 97 0. 9.80393 9.90990 •0.51795 nO. 17519 1.00439 10.869 — 1.4969 • 1851.WM. 8 N. 0.09169 9.78530 nO. 43616 0.04330 9.64345 7.593 + 1.1033 U 17 N. 0.99635 0.05478 nO. 37348 0.39010 0.15534 5.584 9.4553 11 • N. 0.98839 0.17484 nO. 33861 0.51171 •9.74036 4.7S6 3.9487 U 99 N. 0.35858 0.31939 •0.39334 0.64430 •9.84510 3.843 4.4068 13 Fab. * N. 0.39502 0.39310 •0.96735 0.70754 •0.37391 3.434 5.0996 14 3 8. 0.40388 0.40943 •0.96149 0.51511 •0.40140 3.334 3.2743 IS S N. 0.49049 0.44304 •0.94905 0.75069 •0.41996 3.148 5.6394 16 7 N. 0.43667 0.47540 •0.33720 0.77777 •0.14613 9.981 5.9947 IT 16 8. 0.90386 0.60778 nO. 18635 0.75589 nO.66464 + 3.359 + 5.7009 FORMATION OF EQUATIONS OF CONDITION. VKircs i. Meridian, Altona. (OBSERVED CENTER.) V. Daw. log. 6. loi. C. lof.y. log. 8. i«g. n. fc9. 8. 1 9 1851— Jan, 37 31 0.33887 0.37693 0.97960 0.35593 •0.31094 •0.98517 0.48398 0.57089 •9.0000 •0.3809 + 4.187 + 3.718 + 3.041 + 3.793 EQUATIONS OF CONDITION. ccxli FOKMATION OF EQUATIONS OF CONDITION. VENUS II Equatorial, Santiago. N'. Date. Limb. log. b. log. C. log. 6. log./. log. g. log. S. log. n. k* S. P. 1 1852.— May 30 N.S. nO. 35929 0.33064 nO. 33746 0.10111 »9 03180 nO.6532 + 1.593 —0.1076 3.13 3 June 3 N.S. nO. 33994 0.36194 nO. 45025 0.12686 n9. 89790 0.1761 1.794 —0.7905 1.55 3 3 N.S. nO. 31966 0.24138 0.32233 0.13309 0.56575 1.838 +3.6792 4 19 N.S. nO.91424 0.03054 nO. 26326 0.17892 9.04610 nO.4150 2.279 0.1112 1.45 5 15 N.S. nO. 17254 9.94714 tl9. 37273 0.19429 0.23702 nO.1461 9.447 1.7259 2.84 6 33 N.S. nO. 05608 9.71423 nO. 14770 0.22779 9.82217 0.3010 2.855 0.6640 3.00 7 33 N.S. nO. 03646 9.67498 >i9. 93692 0.22713 0.08196 ,.0.21)11 2.846 +1.2077 3.96 8 34 N.S. nO. 01608 9.63422 n0.4G651 0.23395 n9. 64610 nO.6990 3 937 —0.4430 2.57 9 July 6 N. n9.64162 8.88530 0.49487 nO.OI246 0.27915 0.75IOO nO.3010 3.616 +5.6364 2.82 10 < N. ii'J. 46004 8.53314 0.50991 n9.50461 0.28769 0.81955 nO.1139 3.762 6.6001 4.00 11 30 N.S. 9.89612 9.39130 0.32362 0.29677 0.78865 0.8261 3.921 6.1469 3.62 12 31 N.S. 9.99388 9.44783 nO. 06696 0.29634 0.46679 0.6638 3.914 2.9295 2.18 13 Aug. 4 N. S. 0.01564 9.63334 «9. 53567 0.27895 0.60467 0.9395 3.613 4.0341 1.84 14 8 N.S. 0.09199 9.78604 0.54521 0.25372 0.91114 0.7559 3.317 8.1497 1.50 13 13 N.S. 0.15723 9.91653 9.90244 0.24430 0.76156 0.9138 3.080 5.8152 2.90 16 13 N.S. 0.17309 9.94621 0.14554 0.24041 0.81341 0.8865 s.eSs' 6.5074 2.57 17 16 N.S. 0.21377 0.03960 0.32141 0.32129 0.87315 0.7076 2.771 7.4670 3.20 18 31 N.S. 0.27523 0.15353 0.37526 0.17332 0.91315 0.7343 2.321 8.1686 3.02 19 N.S. 0.27548 0.15303 0.38360 0.19234 0.91835 0.7334 2.425 8.2841 3.73 90 39 N.S. 0.28676 0.17558 nO. 20918 0.18127 0.63576 0.8261 2.304 4.3337 1.84 21 23 N.S. 0.39793 0.19790 n8. 76193 0.18194 0.77999 0.8195 2.311 6.0354 2.34 22 28 N.S. 0.34943 0.30092 9.38578 0.15584 0.83949 0.4914 2.049 6.9101 1.41 23 Sept. 1 N.S. 0.38659 0.37524 0.26193 0.12868 0.95332 0.7559 1.809 8.9809 2.88 94 3 N.S. 0.39^7 0.39260 0.20393 0.11831 0.94784 0.8573 1.721 8.8582 3.20 95 3 N.S. 0.40403 0.41010 nO.42746 0.11322 0.67471 1.0899 1.685 4.7283 1.50 96 6 N.S. 0.42895 0.45996 119.33325 0.09392 0.88U36 0.8129 1.534 7.5921 3.00 37 7 N.S. 0.43693 0.47593 nO. 20828 0.08345 0.80092 0.8921 1.469 6. 3530 2.82 98 8 N.S. 0.44483 0.49170 0.54732 0.07943 1.06499 0.4150 1.442 +11.6143 3.43 Z 7° ccxlii EQUATIONS OF CONDITION. FORMATION OF ADDITIONAL V.tjl ATIONS OF CONDITION. VKIf VS II. Equatorial, Santiago. W. Due. Wi.li. JI.T. ou'dr 2r. W.- TrA*. •y n. Ing. C. 10f.«. 10,. n. P- 1 I8s9.-iuy30 .9578 9.9553 1.71 4 19 .9456 99.13 0.573 •j tm .66 18.69 1.73 0.33411 0.49945 •0.9380 9.67 3 15 -j.;j H ji 0.974 9.999 .86 19.61 0.67 0.35478 0.31369 •MM 9.95 6 99 .9431 93.79 0.368 9.834 .04 31.96 0.75 0.40390 0.54834 1.9.8751 3.00 7 93 .9484 95.94 0.508 9.801 .49 •.a 9.13 0.41096 0.55341 nl>.3i8l 3.97 8 .1 .9458 94.47 0.699 -9.764 .93 •.• 0.99 0.41795 0.55845 9.3124 #.95 11 July 30 .7455 31.45 0.451 +0.990 + 0.13 H.« 9.83 0.51590 0.63146 HU.4548 1.93 19 31 .7458 99.49 0.540 0.355 - 0.19 M.U -1.54 0.51169 0.69819 MO. 1875 1.71 13 Au«. 4 .TJX 9S.74 0.494 0.579 -O.S8 •.« +0.80 0.49179 0.61311 9.9031 1.36 14 8 .7189 94.54 0.960 0.707 + 0.71 85.48 +1.76 0.46654 0.59564 0.9455 1.00 13 19 .7947 M.H 0.033 0.759 — 0.09 94.09 —0.60 t.MM 0.57671 •9.7783 9.83 1C 13 .7953 95.49 1.970 tiim + 0.97 93.66 0.67 0.43638 0.57177 1.9. 8361 9.33 17 18 .7189 94.30 0.593 •.735 -f 0.44 93.60 1.30 0.41634 0.55799 BO. 0792 9.67 18 9» 4 1 .6933 91.98 0.034 0.600 — 0.01 90.91 —1.08 0.38365 0.53330 nO.0334 9.44 19 H .7144 90.43 0.312 0.600 — 0.19 90.91 +0.96 0.38349 0.53309 9.4150 3.30 90 33 .7073 91.18 0.331 0.561 + 0.19 90.39 —0.37 0.3T579 0.53836 •8JM 1.38 81 93 .7148 91.65 0.348 0.316 — 0.18 90.36 1.60 0.36901 0.53361 •0.3041 1.95 •-•: 98 .7164 90.47 0.056 +0 242 + 0.01 18.77 1.63 o.3;t.-,?7 0.50058 nO.9175 9.44 S3 Sept. 1 .7104 19.19 0.605 —0.037 — 0.09 17.69 1.41 0. 310M 0.48313 •0.1493 9.93 94 9 .7044 19.90 0.896 0.113 — 0.10 17.43 1.80 0.30373 0.47899 •0.9353 9.67 99 3 .7059 18.16 0.664 0.191 + 0.13 17.18 0.90 0.99746 0.47474 •9.9549 3.00 98 C .7010 17.16 0.399 0.441 0.17 16.47 0.55 0.97905 0.46259 •9.7404 3.00 97 7 Ml 17.90 0.599 0.539 + 0.98 16.95 1.41 0.97305 0.45867 •0.1493 9.67 28 8 jnl 16.78 0.409 0.617 — 0.95 16.03 -0.97 0.96705 0.45476 n9.9668 4.00 FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. VENUS II. Equatorial, Santiago. (FROM BIB1CT MKA8UBKXEXT OF DIAMETERS.) N'. Due. Wuh. M.T. Obt'd r. No. Obi. r.. n. lof. e. lof. 8. log. n. P- 18S9.-July 10 .9148 II 98.88 < n 93.31 // -0.56 0.31438 0.63093 •9.7443 3.98 11 31 .75(9 99.98 5 98.13 1.14 0.31158 0.69816 nO.0550 3.00 13 Auf. 4 .7510 98.49 96.87 1.58 0.49170 0.61304 •0.1917 3.98 IS 19 .7460 95.05 94.01 1.03 0.44984 0.57660 •0.0191 3.98 It 13 .7490 93.39 93.65 1.87 0.43897 0.57179 •0.9397 3.98 17 16 .7400 99.94 93.39 0.33 0.41690 0.35719 •9.5441 3.98 18 91 .7395 91.91 MJi 1.09 0.38933 0.53397 •0.0107 3.98 33 .7990 18.90 17.88 — 0.38 0.309M 0.48305 •9.7909 3.98 EQUATIONS OF CONDITION. ccxliii FORMATION OF EQUATIONS OF CONDITION. VE5TTJS II. Meridian, Santiago. N'. Date. Limb. log. 6. log. C. log. C. . log.gr. log. S. log. U. P. S. 1 1852.— May 30 S. nO. 36066 0.32338 nO.24912 0.17411 n9. 67238 nO.6628 . +2.229 —0.4702 2 31 S. nO. 35109 0.30424 nO.25522 0.17928 n9. 71458 nO. 2788 2.283 —0.5183 3 June 3 N. nO. 33131 0.26468 0.26762 O.I8S77 0.70716 n0.68I2 2.396 +5.0952 4 3 S. nO. 32107 0.24420 nO.27391 0.19499 n9. 81425 nO.7634 2.455 —0.6520 S 12 N. .10.21614 0.03434 • 0.33314 0.24383 0.72788 nO.4314 3.074 +5.3441 6 13 S. nO. 20275 0.00755 nO. 33997 0.24942 «9. 89524 nO.5051 3.154 —0.9891 7 22 N. nO. 05908 9.72022 0.40279 0.30050 0.77122 nO.0414 3.990 +5.9050 8 23 S. nO. 03974 9.68154 nO. 40980 0.30612 nO. 06491 nO.6721 4.095 —1.1612 9* 24 N. nO. 01951 9.64108 0.41680 0.31187 0.78198 nO.2553 4.204 +6.0531 10 28 N. n9. 9.2761 9.45728 0.44429 0.33418 0.80484 9.6990 4.660 +6.3803 11 29 8. n9. 90124 9.40454 nO. 45097 . 0.33952 liO. 07269 nO/7782 4.775 —1.1822 13 30 N. i>9.87317 9.34840 0.45756 0.34496 0.81672 iin.li::'> 4.897 +6.5572 13 July 1 N. «l9. 84316 9.28838 0.46401 0.35019 0.82266 n9.8451 5.016 6.6475 14 5 N. n9. 69684 8.99574 0.48826 0.36989 0.84651 0.1461 5.493 7.0229 15 6 N. n9.6515l 8.90508 0.49383 0.37441 0.85239 0.5051 5.608 7.1185 16 7 N. n9. 69980 8.80166 0.49914 0.37870 0.85813 0.4314 5.720 7.2131 17 8 N. n9.S4173 8.68552 0.50432 0.38280 0.86379 0.8195 5.829 7.3079 18 9 N. (19.47467 8.55140 0.50900 0.38666 0.86933 0.8976 5.933 7.4017 19 10 N. 1)8.39535 8.39276 0.51348 0.39026 0.87473 0.4314 6.033 7.4914 30 13 N. n8.99625 7.59456 0.52490 0.39931 0.88995 0.3979 6.290 7.7615 31 (18) N. 9.17516 7.95238 0.53617 0.40765 0.91127 0.7243 6.536 8.1521 32 36 N. 9. 77951 9.15508 0.52896 0.39844 0.93570 0.7559 6.265 8.6235 23 39 N. 9.87338 9.34882 0.51909 0.38877 0.94065 0.9294 5.991 8.7226 24 30 N. 9.90141 9.40488 0.51510 0.38492 0.94208 1.0492 5.885 8.7513 25 31 N. 9.92773 9 45752 0.51078 0.38079 0.94342 0.6335 5.774 8.7785 . 36 Aug. 4 N. 0.01953 9.64110 0. 49077 • 0.36182 0.94841 0.8633 5.292 8.8799 27 5 N. 0.03973 9.68152 0.48519 0.35657 0.94964 0.7853 5.165 8.9052 38 6 N. 0.05905 9.72016 0.47951 0.35123 0.95096 0.8692 5.040 8.9332 39 7 N. 0.07755 9.75716 0.47238 0.:J4446 0.95157 0.9770 4.886 8.9449 30 8 N. 0.09528 9.79362 0.46740 0.33986 0.95358 0.8808 4.783 8.9863 31 10 N. 0.12874 9.85954 0.45483 0.32806 0.95650 0.9770 4.530 9.0470 • 13 N. 0.15980 9.92166 0.44186 0.31593 0.95978 0.8751 4.283 9.1156 33 13 N. 0.17454 9 95114 0.43527 0.30973 0.96157 0.7482 4.164 9.1532 34 14 N. 0.18880 9.97966 0.42862 0.30349 0.96348 0.8129 4.046 9.1935 35 16 N. 0.21597 0.03400 0.41521 0.29087 0.96759 0.9395 3.817 9.2809 36 31 N. 0.27735 0.15676 0.38140 0.25883 0.97999 0.8129 3.294 9.4499 37 352 N. 0.28864 0.17934 0.37466 0.25240 0.98285 0.7634 3.198 9.6127 38 23 N. 0.29966 0.20138 0.36794 0.24595 0.98581 0.8865 3.104 9.6786 39 38 N. 0.35090 0.303*6 0.33479 0.21379 .00234 0.8513 2.677 10.0541 40 31 N. 0.37898 0.36002 0.31540 0.19461 .01355 0.8062 2.450 10.3168 41 Sept. 1 N. 0.38795 0.37796 0.30904 0.18824 .01748 0.8633 2.380 10.4106 42 3 N. 0.39676 0.39554 0.30273 0.18189 .02149 0.6532 2.311 10.5074 43 3 N. 0.40.148 0 41302 0.29649 0.17556 .02570 0.7334 2.245 10.6094 44 6 N. 0.43024 0.46254 0.27839 0.15663 .03843 0.8692 2.058 10.9253 45 7 N. 0.43822 0.47850 0.27206 0.15035 .04286 0.8808 1.998 11.0371 46 8 N. 0.44636 0.49418 0.26612 0.14410 .04736 0.7993 1.942 +11.1521 ccxliv EQUATIONS OF CONDITION. FORMATION OF ADDITIONAL EQUATIONS OF CONDITION. VKJf VS II. Meridian, Santiago. (FROM DIRECT XEAII-KEMEXT or DIAMETEU.) N'. Dale. Wart. M.T. obi-d r. »•. n. - lof.e. log. 8, log. n. 1 l&W.-M«r 30 .1131 • IS. 15 // 1S.37 +0.99 0.94913 0.44399 9.3194 a 31 .1138 16.06 15.59 -0.47 0.25599 0.44713 •9.67*1 3 June * .1I1S 15.50 16.04 +0.54 0.96769 0.45SI3 9.7344 4 3 .110* 16.89 \*M —0.61 0.97391 0.45933 •9.7889 5 19 .1099 16.57 18.65 +0.08 0.33314 0.49879 8.9031 t 13 .tort 18.64 18.95 0.31 0 .T3U97 0.50347 9.4914 7 • .0855 91.64 91.90 0.95 0.40979 0.54754 9.4065 8 93 .0833 91.99 9-3.26 0.33 0.40980 0.55958 9.5250 • 84 .0810 91.99 •.81 0.63 0.41680 0.55769 9.7993 10 98 .0708 91.64 94.10 9.4S 0.44499 0.57767 0.3900 11 • .0680 93.33 94.47 1.15 0.45097 0 58960 O.OB07 • 30 .0651 93.60 24.8S 1.95 0.457S6 O.S8747 P Mi 13 July 1 .0620 93.94 95.21 1.96 0.46401 0.59237 0.1021 H S .0488 94.57 96.67 9.09 0.48826 O.CI044 0.3S19 IS 6 .0459 SS.S7 97.00 1.79 0.49383 0.6I46S 0.3368 16 7 .0-115 25.41 27.34 1.93 0.49914 0.61688 0.2844 17 8 .0378 95.55 97.66 9.10 0.50429 0.62254 MB j 18 9 .0337 96.74 97.97 1.23 0.50900 U K'Jil'J O.OC99 II 10 .0397 25.69 •-•8.36 1.S7 0.51348 0.62961 0.1959 • 13 .01H3 97.51 29.00 +1.49 0.52490 0.63837 0 1733 S3 • .9430 98.69 98.69 —0.00 0.51909 0.63391 •7.6890 ••: 30 .9380 97.57 28.37 +0.79 0 51510 0.63085 9.9004 m 31 .9340 97.98 28.08 0.1S 0.51078 0.62754 9.1*13 m Auf. 4 .9I«4 93.18 9,4 0.64 0.49077 0.61334 9.8063 m S .9160 96.39 36.48 0.09 0.4«!9 0.60819 MM 58 ( .91S8 35.97 96.13 +0.16 0.47961 0.6038S MM • 7 .9098 96.25 25.77 —0.48 0.47238 0. 59850 n9.6819 • .9066 • -:i 25.41 0.49 0.46740 0.5»4:9 n9 6938 31 10 .90C9 M.n 94.68 0.31 0.45489 0. 585 15 n9.4983 a ia .8996 94. IS 23.96 —0.19 0.44186 0.57589 n».2900 33 13 .8931 95.90 23.60 + 1.60 0.43537 0.57106 nO.3055 34 14 .(•07 93.11 23.24 0.13 0.42869 0.56630 9 1139 • 18 .8853 99.41 99.S4 +0.13 0.4IS91 O.S5647 MM • SI .8769 21 43 20.85 —0.58 0.38140 0.53939 •9.7679 37 99 .8753 91 .57 90.53 1.04 0.37466 0.59757 nO 0191 38 S3 .8738 91.08 90.21 0.87 0.367M 0.5-2385. •9.9490 • 16 .8*79 18.99 18.73 0 96 0 33479 0.49999 «9.4150 40 31 .Mil 1829 17.91 0.38 0.31540 0.4867S n 9. 5798 41 Sep.. 1 .8639 18.43 17.65 0.78 0.3U904 0.48*48 •9.E931 • S .8694 17.87 17.39 0.48 0.3U97J 0.478* •9.6(57 43 > .8616 17.66 17.14 0.53 0.99649 0.47410 •9.7209 44 6 .85115 16.68 16.49 0.19 0.97809 0.46198 •9.9900 • 7 .8589 16.61 16.91 0.40 0.97906 0.4.-803 •9.607S 46 8 .8583 16 33 15.99 -0.34 0.98619 0.45416 •9.5378 13 .8555 14.80 14.96 +0.16 0.93798 0.43568 9.2041 EQUATIONS OF CONDITION. ccxlv FORMATION OF EQUATIONS OF CONDITION. VENUS II. Equatorial, Washington. ^OBSERVED BOTH LIMBS.) N°. Date. log.J. log. C. log.J/. • log. s. log. n. &S. S. P- 1 1852.— May 31 nO. 34887 0.29980 n9. 95198 n9. 13678 ! nO.1461 + 0.602 — 0.1339 3.37 2 June 5 nO. 29794 0.196.J4 nO. 00369 t,9.6201 nO.2788 .017 0.4188 3.43 3 9 nO. 25106 0.10418 nO.OI£69 »|9. 78333 1 nO.1461 .201 0.6072 3.27 4 11 nO.22549 0.05304 nO. 11351 nO. 92763 ; .679 — 0.8465 5 Aug 26 0 32696 0.25U93 nO. 10896 0.56435 j .652 + 3.6673 6 £9 0.35848 0.31902 nO. 08557 0.01801 0.8693 .483 + 4.1498 3.59 FORMATION OF EQUATIONS OF CONDITION. / VENUS II. Equatorial, Washington. N'. Dale. Wasb.M.T. Obs'dr. 1 2r. W.- ^rZ>A- ro n. log. 6. log. S. log. n. P- /; ;/ // it 11 1 1853.— May 31 .3433 15.50 0.304 —2.439 — 0.74 15.65 —0.69 0.25664 0.44804 n9.8388 3.59 2 June 5 .3474 18.05 0.077 3.698 -0.21 16.83 1.55 0.28820 0.46861 nO. 1903 3.00 3 9 | .3476 20.63 0.410 2.840 + 1.16 17.87 1.48 0.31453 0.48617 nO. 1703 3.27 4 11 .3860 21.40 0.484 -2.886 1.40 18.44 1.45 0.32837 0.49547 nO 1614 3.00 5 Aug. 26 .6570 31.97 0.493 +0.364 0.18 19.36 2.52 0.34935 0.50992 i.l). . Mil 1 2.67 8 89 .6568 20.63 0.228 +0.180 + 0.04 18.51 —2.16 0.32964 0.49641 nO.3345 2.67 FORMATION OF EQUATIONS OF CONDITION. VENUS II. Meridian, Greenwich. N'. Date. Limb. log. /i. log.C. log. (J. log. S. log. n. P. S. 1 1853.— May 24 S. nO. 41429 0.43064 n9. 85546 «9. 79050 nO. 62325 + 0.514 — 0.0173 3 July 3 8. n9. 77306 9.14818 tiO. 22774 nO. 33076 nO.38739 3.854 2.1417 3 5 S. n».69356 8.98718 nO. 24342 nO. 33185 9.70757 3.068 2.1471 4 6 S. n9.64590 8 89386 nO. 35080 nO. 33159 nO. 17026 3.174 2.1458 5 7 8. n9. 59363 8.78933 nO. 25788 nO. 33072 n9.63347 3.279 2.1415 6 8 8. K9.53118 8.67042 nO.26162 nO. 35929 9.44716 3.383 2.1.145 7 12 8. H9.I5017 7.90240 nO.28769 nO. 31656 n8. 90309 3.762 2.0728 8 13 8. n8. 95952 7.52110 nO. 29240 nO.31141 0.12710 3.844 2.0484 1 16 8. 8.956.6 7.51478 nO. 30366 nO. 28294 0.13033 4.049 — 1.9184 10 22 N. 9.58979 8.78164 nO. 31199 9.60021 0.48001 4.207 + 0.3983 11 Aug. 4 8. 0.01544 9.63294 nO. 26544 n9. 57623 0.72J91 3.395 — 0.3769 13 13 8. 0.15885 9.91576 nO. 31215 9.79851 0.84366 2.656 -j- 0.6288 13 34 S. 0.30821 0.21848 nil. 1-J 17(1 0.37199 0.84572 1.776 2.3550 14 30 N. 0.36800 0.3&06 nO. 08380 0.73416 0.77452 1.471 5.2986 15 Sept. 1 N. 0.38621 0.37448 nO. 07095 0.75008 0.77305 1.386 5.6244 16 3 N. 0.39503 0.39213 nO.06469 0.76363 0.79727 1.347 5.7894 17 13 N. 0.48188 0.56582 nO. 00449 0.88662 0.79099 1.031 + 7.7024 ccxlvi EQUATIONS OF CONDITION. FORMATION OF EQUATIONS OF CONDITION. VKMIS II. Meridian, Cracow. cmmta.) IT. D«t.. * i• 0.51 91 4 — 9 1.49 O.M Pro. C 90 — 15.02 0.113 29 5-9 0.33 0.33 8 10 - 4.96 0.79 18JO —Jan. 7 4 — 9 1.54 0.88 8 10 — 1.07 0.37 I 4 — 1 8.11 1.64 U 10 — l.3t 0.55 10 4 — 1 0.78 0.51 IS 10 — 9 9.45 1.09 19 4 — 9 0.15 097 17 10—9 6.67 0.91 14 6 — 9 0.64 0.40 Total 157 —49 U4.il ±0.9808 Mean Errors far Comparisons of Mars at Greenwich. Date. Number. £w. £. Date. Number. -VV. S. r. u r. H IWfl.-No.. 36 - 4 — 3 49.90 ± 4.60 W9.-n«M.v 27 6 — 1 16.33 ± 1.85 30 4 — 9 4.U5 1850 — Jan. 4 6 — 9 0.41 0.39 Dec. 8 5 — 1 6.74 1.30 5 8 — 9 8.73 1.91 15 4 - 1 19.49 9.55 7 3 — 1 3.16 1.96 Total 40-19 130.01 ±8.155 Mean Errors for Comparisons of Mars at Cambridge. Due. Number. -VV. £. Date. Number. -VV. £. r. // // 1849—Nov. 91 r — s 4.73 ± 0 59 18».— Dec. 28 10 — 3 1.13 ± 0.37 91 11—2 1.95 0.46 29 4 — 1 21.61 fl.M 96 5 — 0.44 0.33 31 1-' — BJ1 1.44 30 6 - 1.15 0.47 IBSO.-lan. 1 11 — 2.50 . 0.49 Dee. 11 8 — 1.68 4 4 — 2.54 0.90 17 4 — O.U6 0.55 5 10 — 3.19 0.62 91 5 — 0.56 n.37 6 7- ' 1.05 0.41 97 S — 0.38 0.30 10 7 — 0.85 0.37 Total 1-.M -21 68.43 ± 0.790 KKrAIMTri.ATlOX. Mean Errors for the different Places of Observali'oii, H.I liir>nt'ifi H - VUI.H . . . Waihiniiion CM H limb . . . c»i» <:. II. . . 1.17 41 M.-ir 1 000 iiwich . . 40 U Man .... 9 155 Cambridge . . 124 91 Mara .... 0.7SO WEIGHTS AND MEAN ERRORS. cell How-untrustworthy any function of this mean error would be as a guide in assigning the proportionate weights to the different series before combining them in one, may he inferred from a single glance at the values of x, approximately deduced from the different sets of observa tions, on the assumption that the unknown quantities z and v are negligible. We may do this by simply solving the equations : -*r and shall find- [aa] [aa] — [ab] [an] =~WJ-' _ — « y [aa] Mars I. Mars II. Venus I. Venus II. Santiago equatorial . . -f- 1 294 l_ o eog 0 "71 I. i gg^ " meridian............ 4- 0 450 i 2 938 4- 2 529 " " (suppl.) 0 06° Washington equatorial _i_ i 732 i i 387 2 g'32 4- 2 603 Cape . " . -f- 1 939 " meridian ... 4- 1 278 _j_ o 094 Greenwich equatorial .... 0 522 " meridian 0 076 4- 0 584 + 3 17? 4- 1 083 Cambridge equatorial + 1 298 Athens meridian i g 627 Kremsrnunster meridian. .... 0 140 Cracow " + 4 573 Altona " 0 970 The only method available for attaining impartial discrimination seems to be the determina- tion of the mean error of an observation, by means of a preliminary solution of normal equations, derived from empirical combination of the several groups for each planet-series. Assuming the values thus obtained for our unknown quantities as sufficiently correct, we may substitute them in the final equations of each group, and thus proceed to a determination of the weight for each from the sum of the squares of the residuals outstanding after the substitution. At the same time we become entitled to compare the different values of the unknown quanti- ties furnished by the several planet-series, and to remove the terms containing t, u, and v, which will have been determined with sufficient approximation, and which have only been introduced into our formulas for the sake of avoiding any possible error with which they might, if disre- garded, affect our ultimate values for the remaining unknown quantities. For this preliminary solution, we may be permitted to attribute equal precision to the work of the several observatories, omitting, however, all observations made at places for which the details of the observations are inaccessible, and examination of the reductions consequently impossible. The question of the relative value of the several groups can then be considered with greater propriety. The relation of the weight of the observation to the number of comparisons of which it is composed is the first topic for consideration. In forming the catalogue of star-places the ordinary principle of combination has been retained, and for a two-fold reason. In the first place, the number of observations of the same Cc'ii WEIGHTS AND MEAN KRROR8. star from any one authority was rarely sufficient to render the resulting places essentially different, whatever the principle adopted for the assignment of weights ; and secondly, so large an amount of labor had already been expended on the determination of these places before my attention was drawn to this question, that a repetition of the work would have entailed an expenditure of time and care altogether disproportionate to the possible increase of accuracy in the resultant places ; an increase which would certainly have been of a different order of mag- nitude from the inevitable uncertainly of the ultimate determination. The numbers annexed to the star-places of our General Catalogue, and there denominated weights, should in truth be divided by a factor which for the majority of cases is not far from constant ; but the assump- tion of a limit of accuracy beyond which the multiplication of observations is comparatively useless renders even such division much less important, and these quantities may therefore be practically regarded as representing the number of standard observations from which the adopted positions are derived. This number is generally large enough to render the assump- tion very reasonable, and the principle has been followed throughout the present computation. For the determination of the value of a measured position from the number of its constituent observations, or of the weight of an observation as a function of the number of comparisons upon Which it depends, let us, as the simplest, and a fully sufficient means of attaining the end designed, consider each of the set of individual comparisons as affected with a constant error c, and introduce this constant error as a multiple of the theoretical mean error e. For simplicity's sake we will disregard the technical "probable error," to which, of course, the linear functions of the mean error are convertible by multiplication with the constant factor, and will employ only the quantity e, which we may call the probable discordance from the mean. We shall then have, by putting c= ae, the probable mean errors, thus : For the result from 1 observation, e. Va* -\- \ " " n observations, S.A a9 +- n the weights of the two determinations being respectively TYH , and — a , , • Consequently the result from n observations has, when compared with that from 1 observation, the weight — which assumes a more convenient form if instead of a, the ratio of the errors, we introduce b, the ratio of the weights, so that The determination of the value b is of necessity empirical, and its magnitude dependent upon the quality of the observations, increasing in the ratio of their delicacy ; so that twenty-five measurements from a source for which b := 5 are worth five times as much as one measurement, thirty-six comparisons where 6 = 6 are worth six times as much as one, &c. No number of measurements, however great, would, in the first instance, be six times, or in the second one, seven times as valuable as a single one. Under some circumstances it may be found desirable to give another form to the expression for the weight, especially when different sets of observations are to be compared with one WEIGHTS AND MEAN ERR01JS. ccliii another. This may readily and conveniently be done by introducing an empirical constant of the form A = =— ,- r in the place of b. Then. l+o p(n) _ _ _ n — A (n — 1) A+n(\ — A) The annexed table is based upon the hypothesis of A = £ ; or, what is the same thing, 6 = 5, a value which experiment appears to indicate as more probable than aay other integer for the average of the observations under discussion. Weights as Functions of the Number of Observations. N*. Weight. N°. Weight. N°. Weight. N°. Weight. N°. Weight. N°. Weight. 1 1.00 11 4.13 21 4.85 31 5.17 41 5.35 60 5.538 2 1.71 12 4.24 22 4.89 32 5.19 42 5.X 70 5.600 3 3.25 13 4.33 23 4.93 33 5.21 43 5.38 80 5.647 4 2.67 14 4.42 24 4.97 34 5.23 44 /S.39 90 5.684 5 3.00 15 4. SO 25 5.00 35 5.25 45 5.40 100 5.714 6 3.27 16 4.57 26 5.03 36 5.27 46 5.41 200 5.854 7 3.20 17 4.64 27 5.06 37 5.29 47 5.42 300 5.901 8 3.69 18 4.70 28 5.09 38 5.30 48 5.43 400 5.926 9 3.86 19 4.75 29 5.12 39 5.33 49 5.44 500 5.941 10 4.00 20 4.80 30 5.14 40 5.33 50 5.45 1000 5.970 Where two results are to be combined, the one derived from n, the other from n' observations, and having respectively the weights P(n) and P(n/), we shall have p(n,»') _ p(*') or (n,n>) -~ f(n) p(n') And since — = „ • b ' n1 + b I 1 2 n n' + (n + «') 6 fn,n-; -- 1 +ft— m/ p(n,n') __ +0 Or- From this formula, and the assumption as before 6 = 5, the table is constructed which gives the weights as functions of two numbers of observations, the decimal point being avoided by assuming 100 as the unit of weight. The quantities under discussion being the means of the two sets of observations, are entitled, after halving, to a double weight, so that the tabulated function is — O IJCn. n') 1" The last table contains, of course, the values given by the present one for the special case when n = n'; that is to say, when the number of observations is equal in the two sets and their mean is taken. ccliv WEIGHTS AND MKAN KREOB8. WEIGHTS AS L>/:r/:\/ii:.\r t A 1 4 1 ft 1 Q 9n no 11 U ID 1 ' H M 1 100 196 138 145 153 155 157 159 IM U i m 169 163 164 165 165 165 165 166 Ifl in. 168 9 19S 171 195 909 :- m 930 n i 937 M 944 945 247 948 M HO 951 959 9» i i m 954 3 M 195 995 •M .: 987 974 980 964 •.-- 991 994 998 998 30* 303 303 304 305 306 307 308 309 4 145 909 944 967 9B9 •; 303 310 315 .1 327 330 333 335 337 339 341 343 343 344 345 346 1 ISO 918 957 j 300 313 :-.•: 331 •t 343 347 351 355 368 360 • 364 366 368 M 370 n 373 6 153 995 967 •; 313 397 338 347 354 360 365 369 ra 376 379 381 383 385 387 389 391 393 394 7 IH 930 974 303 333 338 350 : • 366 373 379 383 387 391 194 396 399 401 403 406 •108 409 8 IB 334 980 310 331 347 1 1 369 377 384 390 395 399 403 406 M 411 413 415 417 419 421 493 9 :: 937 384 315 338 354 366 377 386 393 399 IM 408 412 415 418 491 H 496 498 M 431 433 10 m 940 988 330 343 360 373 384 393 400 406 411 416 430 434 m 439 ;::; 434 436 438 440 449 11 161 949 991 334 347 365 379 390 399 406 413 418 493 427 430 434 437 439 449 444 446 447 449 19 .iv; 944 994 337 351 369 383 395 404 411 418 434 438 433 436 440 443 445 443 450 459 454 456 13 1C9 945 998 330 355 373 3b7 399 408 416 433 428 433 438 442 445 448 451 453 455 458 M 461 u N 947 998 333 358 376 391 403 419 490 497 433 438 449 446 449 459 455 458 460 483 464 466 15 184 348 300 335 380 379 394 406 415 -l-'l 430 436 443 446 450 454 457 460 467 IM 467 469 470 1C m 949 309 337 369 381 396 409 418 427 431 440 445 449 454 457 460 463 466 468 470 479 474 17 165 950 303 339 364 383 399 411 431 499 437 443 448 459 457 460 464 466 469 479 474 476 478 18 185 951 304 341 366 385 401 413 433 439 439 445 451 455 460 463 466 470 473 475 477 479 481 It 185 953 305 349 368 387 403 415 496 434 442 448 453 458 469 468 469 473 475 478 489 489 484 90 168 953 306 343 369 369 405 417 438 436 444 450 455 460 464 468 479 475 478 480 483 484 486 91 166 353 307 344 370 391 406 419 430 438 446 453 458 469 467 470 474 477 480 489 485 486 488 33 168 954 308 345 379 393 408 431 431 440 447 454 459 464 469 473 476 479 489 484 486 489 491 33 186 954 309 : • 373 394 409 433 433 443 449 456 461 466 470 474 478 481 484 486 488 491 493 •Jl 168 955 310 M 374 395 411 494 434 443 451 457 463 467 •172 476 480 483 486 488 490 493 495 as 167 955 310 348 375 396 413 435 435 444 453 459 464 469 474 477 481 484 488 490 493 494 496 as 187 95S 311 349 37C 397 413 498 • 446 453 460 466 471 476 479 489 486 489 491 494 496 498 97 187 956 313 349 377 398 414 437 H 447 454 461 467 472 477 480 484 487 490 493 495 497 499 98 167 957 319 : 1 :••• 398 415 438 ;:: 448 456 469 468 473 478 489 485 489 492 494 497 499 501 99 167 957 313 351 ::-,- 399 416 439 440 449 457 463 469 474' 479 483 486 490 493 495 498 500 503 30 167 1 : 313 1 379 400 417 430 441 450 458 465 470 476 480 484 488 491 494 497 499 501 503 31 168 9J7 313 359 : • 401 417 431 449 451 459 465 471 476 481 485 489 493 495 498 500 509 504 J 188 958 314 359 380 401 418 431 443 1 : 460 466 479 477 483 486 490 493 « 499 501 503 505 • 168 958 314 353 381 403 419 ::••.' 443 453 460 467 473 478 483 487 491 494 m 500 503 504 SOS : : 188 958 : \t 353 381 403 419 433 444 453 461 •468 474 479 484 488 491 495 498 501 503 SOS 507 3. 168 958 315 354 389 403 • 434 445 454 463 489 475 480 485 489 493 498 499 903 504 506 508 36 188 959 313 354 389 404 4ai 434 445 455 463 470 476 481 485 490 493 497 500 503 505 507 509 r. 168 959 316 355 363 IM m i. 446 455 463 470 476 481 486 490 494 497 500 503 506 508 510 - 168 959 316 355 383 • 435 447 456 464 471 476 489 487 m 495 • 501 504 506 509 511 • 168 1 • 316 • , 384 405 M 436 447 457 465 471 478 483 I-- m 495 499 503 505 507 • M 511 ;• 168 959 316 356 384 406 493 436 448 457 465 n 478 483 488 493 496 HI 503 505 508 510 519 : • 168 189 980 950 317 317 356 356 384 385 406 407 433 494 437 437 448 449 458 458 466 466 473 473 479 479 484 485 489 489 493 493 •:•••• 497 200 501 503 504 506 507 508 509 511 511 513 513 189 960 317 356 385 407 494 438 449 459 467 474 480 485 490 494 498 501 604 507 509 619 514 t; 169 980 317 357 386 408 494 438 450 459 467 474 480 ! • 491 495 498 509 505 508 510 513 SIS • 189 980 318 357 386 408 495 439 450 460 468 475 481 486 491 495 499 503 505 608 511 513 515 •• 169 980 318 357 386 408 125 439 450 460 466 475 481 487 491 495 499 503 506 509 511 613 515 WEIGHTS AND MEAN ERRORS. cclv 71CO SETS OF MEASUREMENTS. 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 42 44 46 48 50 166 167 167 167 167 167 167 168 168 168 168 168 168 168 168 168 168 169 169 169 169 169 1 255 3S5 256 256 357 257 257 257 258 258 958 258 359 259 359 259 259 260 260 260 261 261 2 310 310 311 312 312 313 313 313 314 314 315 315 315 316 316 316 316 317 317 318 318 319 3 347 348 349 349 350 351 351 352 352 353 353 354 354 355 355 355 356 356 357 357 358 358 4 374 375 376 377 378 378 379 380 380 381 381 382 383 383 383 384 384 385 386 386 387 387 5 395 396 397 398 398 399 400 401 401 402 403 403 404 404 405 405 406 407 408 408 409 409 6 411 413 413 414 415 416 417 417 418 419 419 420 421 421 433 423 423 424 424 425 426 426 7 434 435 436 427 438 429 410 431 431 432 433 434 434 435 435 435 436 437 438 439 440 440 8 434 435 437 438 439 440 441 443 443 443 444 445 445 446 447 448 448 449 450 450 451 452 9 443 444 446 447 448 449 450 451 452 453 453 454 455 455 456 457 457 458 459 460 461 462 10 451 453 453 454 456 457 458 459 460 460 461 462 463 463 464 465 465 466 467 468 469 470 11 457 •459 460 461 462 463 465 465 466 467 468 469 470 470 471 471 472 473 474 475 476 477 13 463 464 '466 467 468 469 470 471 473 473 474 475 476 476 476 478 478 479 480 481 482 483 13 467 469 471 472 473 474 476 476 477 478 479 480 481 481 482 483 483 485 486 487 488 488 14 473 474 476. 477 478 479 480 481 482 483 484 485 485 486 487 488 488 489 491 491 492 493 15 476 477 479 480 483 483 484 485 486 487 488 489 490 490 491 492 492 493 495 495 496 497 16 480 481 m 484 485 486 488 489 490 491 491 492 493 494 495 495 496 497 498 499 SCO 501 17 483 •1-1 486 487 489 490 491 492 493 494 495 496 497 497 498 499 499 501 502 503 504 505 18 486 468 489 490 499 493 494 495 496 497 498 499 500 500 501 502 503 504 505 506 507 508 19 •:-• 490 491 493 494 495 497 498 499 500 501 502 502 503 504 505 505 507 508 509 510 511 20 490 492 494 495 497 498 499 500 501 502 503 504 505 506 506 507 508 509 510 511 512 513 21 493 484 496 497 499 500 £01 502 503 504 505 506 507 508 509 509 510 511 513 513 514 516 22 495 496 498 499 501 503 5C3 504 505 506 507 508 509 510 511 511 512 513 515 515 516 518 23 497 498 500 501 503 504 505 506 507 508 509 510 511 512 513 513 514 515 517 517 518 520 24 498 500 501 503 504 506 507 508 509 510^ 511 512 513 514 515 515 516 517 518 519 520 522 25 500 SOI 503 505 506 507 509 510 511 512 513 514 515 516 516 517 518 519 520 521 522 533 26 501 503 505 506 507 5C9 510 511 512 513 514 515 516 517 518 519 519 521 522 523 524 525 27 503 504 506 507 509 510 512 513 514 515 516 517 518 519 520 520 521 522 523 524 525 527 28 504 506 507 509 510 512 513 514 51? 516 517 .518 519 520 521 522 522 524 525 526 527 528 29 505 507 509 510 512 513 514 515 517 518 5.9 520 521 522 523 523 524 525 526 527 528 529 30 506 508 510 511 513 514 515 517 518 519 520 521 522 523 524 524 525 526 527 529 530 531 31 S07 509 511 512 514 515 517 518 519 530 521 522 523 524 525 525 526 528 529 530 531 532 32 508 510 512 513 SIS 516 518 519 520 531 522 523 524 525 526 526 527 5?J 530 531 532 533 33 509 511 513 514 516 517 519 520 521 522 523 524 525 526 527 527 538 530 531 532 533 534 34 510 513 514 515 517 518 520 521 523 523 524 525 526 527 528 528 529 531 532 533 534 535 35 511 513 SIS 516 518 519 531 522 533 524 525 526 527 528 529 539 530 533 533 534 535 536 36 513 514 516 517 S19 520 523 523 524 525 526 527 528 539 529 530 531 532 533 535 536 538 37 513 515 516 518 530 521 523 534 525 526 537 528 529 529 530 531 532 533 534 536 537 538 38 513 515 517 S19 520 522 533 524 523 526 527 538 529 '530 531 533 J32 534 535 537 538 538 39 514 516 m 519 521 522 524 525 527 558 599 530 531 532 533 533 535 536 538 539 539 40 SIS SI6 518 520 531 523 524 526 527 528 529 530 531 532 532 533 534 536 537 538 539 540 41 SIS 517 519 521 523 534 525 528 538 529 530 531 582 532 533 534 535 536 537 539 540 541 42 S16 518 520 521 523 524 526 527 538 529 530 H3 532 533 534 535 536 537 538 539 540 542 43 517 518 520 522 5-23 535 526 527 529 530 531 5o2 533 533 534 535 536 537 539 540 541 542 44 517 519 521 523 534 556 5J7 528 529 530 531 532 533 534 535 536 537 538 539 540 542 543 45 SI7 519 531 523 524 520 537 529 530 531 532 533 534 535 536 S37 538 539 540 541 542 543 46 cclvi WEIGHTS AMD MEAN KKROB8. AS jiKrE\r>E\r rroff 1 2 3 4 5 6 T 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 47 « in 189 961 881 318 318 358 358 386 387 408 409 496 496 439 451 451 460 461 469 469 476 476 4&I 488 487 488 491 4tt 496 496 500 500 503 504 506 507 509 510 519 519 514 614 516 516 « 1*9 981 3!9 358 387 409 496 440 443 461 470 477 483 4W 493 497 501 504 507 MO 513 515 517 50 1«9 981 318 358 387 409 496 440 4S3 469 470 477 483 488 493 497 501 505 508 511 513 516 518 • 169 911 319 358 388 410 497 441 453 469 471 477 484 489 494 498 509 505 608 .Ml 514 516 518 54 189 981 319 359 3P8 410 498 449 4J3 463 471 478 484 490 494 499 503 506 SOB 518 515 517 519 96 189 981 319 319 388 411 458 449 454 464 479 479 4M 490 496 499 503 507 510 513 .115 518 M :- 169 969 330 358 3M) 411 439 443 454 464 479 480 486 491 498 500 504 507 510 513 516 519 :.-.•! 60 169 169 Hi 969 390 390 360 360 3t9 390 411 419 439 499 443 444 455 455 464 465 473 473 480 480 488 487 499 493 497 497 501 501 505 505 508 608 511 519 514 515 517 517 519 519 • • M 170 M 320 381 300 419 430 444 4S6 4«5 474 481 487 498 M 503 506 519 519 516 :.is 590 an 1 ITU M 391 381 390 413 430 444 456 466 474 481 488 4«3 M 503 506 510 513 516 519 531 M 68 170 969 391 381 3SO 413 430 445 456 466 475 489 488 494 m 503 507 510 514 617 590 533 534 TO 13 170 170 969 983 391 391 381 363 391 391 413 413 431 431 445 445 457 457 417 467 476 475 483 483 4E9 489 494 495 H 499 503 504 507 508 511 511 514 514 517 517 520- 590 • 533 594 535 74 170 993 991 369 391 414 433 448 457 m 476 4t3 486 M 500 504 508 519 515 518 590 M 595 76 170 963 • 3K9 391 414 433 446 45B M 476 483 490 495 500 M 508 513 515 518 591 m 536 78 170 983 323 389 393 414 433 447 450 !•> 476 484 490 498 501 • M 512 516 519 591 :.->! 596 80 170 963 321 369 392 414 433 447 • ;••- 477 484 490 496 m M 509 513 516 519 593 694 596 M IN 170 170 •-v. : 365 333 333 363 364 393 393 415 416 433 434 448 449 460 461 469 471 478 479 485 406 491 493 497 499 503 504 506 M 510 513 514 516 517 519 590 533 523 . 535 527 537 539 WEIGHTS AND MEAN EREOES. two sets of Measurements — Continued. cclvii 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 42 46 48 50 518 520 523 523 525 526 538 529 530 531 532 533 534 535 536 537 538 539 540 542 543 544 47 518 520 522 524 525 527 528 530 531 533 533 534 535 536 537 53S 539 540 541 542 543 544 48 519 521 523 524 526 527 529 530 532 532 533 534 535 536 537 538 539 540 543 543 544 545 49 530 522 523 525 527 528 529 531 533 533 534 535 536 538 538 538 539 541 542 543 544 545 50 520 522 524 526 527 529 530 533 533 534 535 536 537 538 539 539 540 542 543 544 545 546 52 531 523 525 527 538 530 531 533 534 535 536 537 538 539 539 540 541 543 544 545 546 547 54 522 524 526 537 529 530 532 533 534 536 537 538 539 539 540 541 543 543 544 546 547 548 56 523 525 527 528 530 531 533 534 535 536 537 538 539 540 541 542 543 544 545 547 548 549 58 524 526 527 529 531 532 533 535 536 537 538 539 540 541 542 543 543 545 546 547 549 550 60 535 528 ten 529 531 532 534 535 536 537 538 540 541 541 542 543 544 546 547 548 549 550 62 525 527 526 530 531 533 535 536 537 538 539 540 541 542 543 544 544 546 547 549 550 551 64 525 597 528 530 533 533 535 537 538 539 540 541 543 543 543 544 546 547 548 549 550 552 66 526 538 539 531 533 534 536 538 539 541 541 543 543 543 544 545 545 547 549 550 551 552 68 538 528 530 532 533 535 536 538 539 540 541 £42 543 544 545 546 546 548 549 550 552 553 70 537 529 531 532 534 535 537 538 539 540 541 542 543 544 545 546 547 548 550 551 552 553 72 527 529 531 533 534 536 537 538 540 541 542 543 544 545 546 546 547 549 550 551 553 554 74 528 530 531 533 535 536 537 539 540 541 542 543 544 545 546 547 548 549 551 552 553 554 76 528 530 533 534 535 537 538" 539 540 542 543 544 545 546 546 547 548 550 551 552 553 554 78 528 530 532 '534 535 537 538 540 541 542 543 544 545 546 547 548 549 550 551 553 554 555 80 • 531 533 535 537 538 540 541 542 543 544 545 546 547 548 549 550 552 553 554 556 557 90 531 533 535 537 538 540 541 543 544 545 546 547 548 549 550 551 552 553 555 556 557 558 100 Z 9° Cclviii WEIGHTS AND MEAN ERRORS. This table has been employed alike to furnish weights for the determination of the places of a planet's center deduced from observations of the two limbs, and for the weight of positions depending on comparisons with a star. In the former case n and n! are the respective numbers of observations of each limb ; in the latter the one denotes the number of observations upon which the adopted declination of the star rests, and the other the number of comparisons. In order to combine the additional equations resulting from diameter-measurements with the other equations of condition, we may consider the weight of a pointing to a planet's limb as one-half that of a setting upon a star. Inasmuch as the equations are all formed with reference to the semidiameters, or one half the quantity actually measured, it is evident that we have merely to assign the unit of weight to each additional equation derived from a direct measure- ment. From the same assumption as to the relative precision of the two kinds of setting we perceive that the equations derived from indirect measurement are each entitled to one half the weight which belongs to the primary equations of condition to which they correspond." The same principles regulate the weights of the supplementary equations derived from micrometric observations upon the meridian. In these observations, however, it will be borne in mind that, from the nature of the case, only one comparison was possible. In combining absolute meridian determinations with the comparative measurements furnished by the micrometers of the equatorials, new difficulties arose. The most reasonable, as well as the simplest, course seemed to be to assign the weight unity to each meridian observation, con- sidering the resultant position as dependent upon the combination of one pointing to the object with one observation of the nadir. The errors of graduation are necessarily ignored. In the meridian observations at Athens the equator-point was deduced from the J/ars-culminating stars, and the consideration of the latitude thus eliminated. Yet an inspection of the various values of the equator-point will show that the resultant determinations can scarcely be entitled to claim a weight greater than unity. All consideration of the latitude is here eliminated. But for the other places at which meridian observations were made, any error in the adopted latitude will affect our result by its full amount. To obviate this difficulty as far as possible the same constant correction is applied to the meridian observations of the planet's declination which was previously found applicable to the measured declination of stars. These corrections are : Santiago Marsll — O."12 Cape of Good Hope, Mara I — 0."59 Cape of Good Hope, Mara II — l."32 Greenwich ITarsI-f O."10 Greenwich Mars II — O."06 For both series of Fcntw-observations the corrections have been applied which were found for the .Jfara-series. There remain the observations at Kremsmiinster and Cracow, and the two of Venus I at Altona, for which no details whatsoever are given. These are necessarily to be omitted from the fundamental equations for the preliminary solutions. FUNDAMENTAL EQUATIONS. § ll.-ITODAMENTAL EdUATIONS. The various products of the coefficients having been duly formed and summed, we obtain the systems of final equations, which constitute the only source for all the deductions possible from the present investigation. They follow in their regular order. A. FINAL EQUATIONS FOR MARS I. 1. Santiago Equatorial. 245.9801+ 50.301 y + 66. 012 z — 65.862 v -f 322.302 w + 195.44 =0 50.301 x + 165.077 y + 39.811 z + 16.342V + 39.760 Mr —470.31 =0 66.012X + 39.811 y + 32.841Z — 17.828 v+ 80.599 w — 48.93 =0 — 65.862*+ 16.342 y — 17. 828 I + 448. 187 v— 90.420 w — 350.49 =0 322.302X + 39.760 y + 80.599 z — 90.420 v+ 427.058 w + 344.76 =0 [tin] = 2126. 19 / 211. 4601 + 324. 36411 — 469.397 =0 324. 364 t + 503. 332 u — 717.614 =0 [nn] = 1095.428 2. Washington Equatorial. 93.950 X— 92.428 y + 100.243 z — 36.292 w + 329. 73 =0 — 92. 428 X + 250. 553 y — 211. 748 z+ 39.342 W — 616.86 =0 100.243 X — 211.748 y + 222.347 z — 40.298 w + 498.27 = 0 — 36.2921+ 39. 342 y— 40.298 z + 14.215 w — 135.85 =0 [nnj = 2074.59 76. 990 t+ 120.312 n— 248.693 =0 120.312 t+ 189. 217 n — 388.831 =0 [nn] = 976.024 3. Cape of Good Hope Equatorial. 156. 410 I — 114. 932 y+ 75.039 z + 222.207 v + 221.511 w + 510.68 =0 — 114.938 X + 187.576 y — 103.827 z — 121.703 V — 169.220 w — 561.35 =0 75.039 X — 103.827 y + 69.424 z + 99.935 v + 106.929 w + 316.13 =0 222.207 x — 121. 703 y+ 99.935 z + 1509.463 v +309.533 w + 538.11 =0 221. 511 x — 169.220 y+ 106. 929 z+ 309.533 v + 314.688 w + 738.93 =0 [Tin] =2136. 65 103. 150 t+ 170. 780 u + 20.102 =0 170.780 t + 283.620 u + 31. 715 =0 [>m] = 47. 116 4. Cape of Good Hope Meridian. 46. (00 x — 29.619 y + 21.694 z + 64.792 w + 130.97 = 0 — 29.619 X + 54.230 y — 30.617 z — 43.931 w — 170.00 = 0 21. 694 x — 30. 617 y + 21. 778 z + 30. 783 w+ 93.80 =0 64.792 X — 43.931 y + 30.783 z + 91 .590 w + 191.60 = 0 [nn] =734.81 5. Greenwich Equatorial. 20.200 x— 5.291 y + 4.297 z — 16.548 w — 1.00 =0 - 5.291 X + 10.749 y — 5.903 z + 5.911 w — 16.64 =0 4.297 X— 5. 903 y + 3.290 z— 4.382W+ 5.02 =0 — 16.548X+ 5.911 y — 4.382 z — 14. 102 W— 1.72 =0 [n«l=51.77 FUNDAMENTAL EQUATIONS. 6. Greentrich Mn-iilhin. S4.000X + 4.677y +9B.850X+ 17.000 t- 14. 584 w- 11.50 =0 4.677 x + 67.3W)y + 8.158 x + 8.944 t + 0.894 w - 139.70 =0 96.MOX + 8ll52y + 58.878X + 9.015 t— 14.748 w — 64.S7 = 0 17.0001+ 9.944y + 9.015*+ 19. 000 t— 10. 854 w + 8.80 =0 -14.984x4- 0.884y — 14.748. * — 10.854 t + B.lSOvr— 9.41 — 0 [i«i] -=- 380.83 7. Cambridge Eqvafarici. 60.0801— 58. 593 >• + 47. 431 X— 0.900t— 1.006 U — 37.968 W + 176.98 =0 — 58.5931 + 11H.S7S y — 06.401 m+ 8.803 t + 13.557 u + 41.084 w — 877.99 =0 47. 431 x— 96.401 y + 80.9761 — 8.774 t — 13 796 n — 31. 783 w + 990.35 =0 — 0.900 x + 8.803 y — 8.774 x + 31.020 t + 50.396 a - O.OOSw — 19.58 =0 — 1.008X+ 13.5S7y — 13.796 x + SO. 198 t + 81 .958 n — 0.307 w — 17.86 = 0 — 37.8881+ 41 -064 y — 31.7831 — 0.009 1 — 0.307 a + 8T..011 w — 190.94 =0 [n.] = 796.07 81 .780 t + 35. 167 a — 15.78 = 0 35.167 t + 56.844 n — 95.84 = 0 [IMI] = 90.09 8. Athens Meridian, 38.000 x— 1. 865 y + 91.565 x + 0.000 t f 0.330 n — 11.854 w + 957.30 —0 — 1. 865 X+ 53.921 y— 0.005 *. + 0.097t+ 0.996 a + 9.379 w — 170.98 =0 91.S65X— 0.005 y + 22.9351— 9.405t- 3.205 u — 8.509 w + 131.85 =0 0.0001+ 0.097y— 9.405 x + 38. 000 t + 58.069V— 0.032 w — 70.70 =0 0.330X+ 0.996y— 3.205 x + 58.062 t + 90.252 u — 0.193 w — 107.04 =0 — 11.8541+ 9.379y— 8.509x— 0.032t— 0.123»+ 3.758W— 85.77 =0 [mi] =9543.616 We have here to combine eight systems of equations containing in strictness twelve unknown quantities, viz : the x, y, z, w, common to all, the two v's for the micrometers of the Santiago and Cape equatorials, and the different values for both t and u in three several systems. The observations with the Greenwich equatorial were made by pointing to the estimated center ; so that the unknown corrections to the measured semidiameter find no expression in the final corresponding equations. With the Santiago, Washington, and Cape Equatorials, and the Cape Mural, both limbs were regularly observed ; so that the quantities t and u are here fully eliminated. There remain the measures with the Meridian-circles at Greenwich and Athens, and with the Cambridge Equatorial. But the impossibility of eliminating the influence of both t and u from the Greenwich meridian observations was, from the beginning, so palpable that only one has been introduced into the equations of condition. Our unknown quantities are thus reduced to eleven, and, of course, the first object is to diminish this number as far as possible. The details and unsatisfactory issue of the attempt to discriminate between the influences which affect the measured diameters will be set forth in another place. For the present pur- pose it will suffice to say that the effort was utterly futile for every one of our planet-series, and that each new endeavor furnished only a new illustration of the impossibility of any such discrimination with the materials now in our hands. Most of the solutions furnished by the additional equations — whether these were independently discussed, or taken in connection with the fundamental equations containing terms dependent upon the same values — were illusory plays with figures ; and those concerning which such an expression would be too strong were clearly entitled to no confidence. After much labor devoted to this end the quantity u was finally ignored in all the equations, thus diminishing the number of unknown quantities by two. FUNDAMENTAL EQUATIONS. cclxi The Cambridge additional equations for semidiameter gave the values— t = — 8".583, u = + 5".823, or, after putting u = 0, t=-f-0".7245, which latter value may be substituted in the Cambridge equations. Finally, in order to reduce the number of unknown quantities still farther, if possible, and for the sake of a general survey of the character of our materials, all the equations, excepting those derived from the Athens observations, were combined into one set containing seven unknown quantities, by simple addition of the analogous equations in each system. The solution afforded an indication of the admirable precision of Mr. Maclear's measurement of his micrometer-screw, the quantity v2 (100 times the correction to his adopted value) coming out as zero. The resultant values of x, y, z and w being substituted in the equation containing [ff] in the Cape Equatorial series, this equation becomes — 1509".463 v2 = + 0".402 V2 = + 0".000266 which authorizes us to dispense with any farther consideration of this term. For the Santiago Equatorial this solution gave Vi = + 0".5TO for the Greenwich Circle, 1^ = + 0".166 and for the Athens Circle, ta = + 1".927. Considering these last quantities as still undetermined, we hare but seven unknown quantities remaining, and our equations containing w assume the annexed form, which we may consider fundamental. FUNDAMENTAL EQUATIONS FOR MARS I. Santiago Equatorial . . . Washington Equatorial . . Cape of Good Hope Equatorial Cape of Good Hope Meridian Greenwich Equatorial . . . Greenwich Meridian . . . Cambridge Equatorial . . . Athena Meridian 245. 980 x+ 50.301 y + 66. 012 z 93. 950 X — 92. 428y +100.243 z . 156. 410 X — 114. 932 y + 75.039 z 46.000 x— 29.6il)y + 21. 694 z 20. 200 x— 5.391y + 4.297 z 24. 000 X + 4.677y + 26.950 z + 17.000 t 60.080 X — 59.593 y + 47.431 z 38.000X — 1.865 y + 81.565 x+ O.OOOt — 65.862 V + 322.302 w + 195.44 = 0 0 0 0 0 0 0 0 — 36. 292 w +329.73 + 221. 511 w +510.68 + 64.792 w + 130.97 — 16. 548 w — 1.00 — 14. 584 w — 11. JO — 37.988 w + 176.26 — 11.854 W +257.30 Santiago Equatorial .... Washington Equatorial . . . Cape of Good Hope Equatorial Cape of Good Hope Meridian Greenwich Equatorial . . . Greenwich Meridian . . . Cambridge Equatorial . . . Athena Meridian 50.301 X + 165.077 y + 39.811 z 92. 428 X +250. 553 y —211. 748 z 114.932 X + 187.576 y — 103.827 z 29. 619 x + 54. 230 y— 30. 617 z • 5.291X+ 10. 749 y— 5.903 z 4.677X+ 67.389y+ 8.152Z+ 2.944 1, • 59. 593 X +118. 579 y— 96.401 z • 1.865X+ 53.921 y — 0.005 z + 0.097t, + 16.342 V + 39.760 w —470.31 =0 0 0 0 0 0 0 0 + 39.342 w —616.86 — 169.220 w —561.35 — 43.331 w —170.00 + 5 911 w — 16.64 + 0.894 w — 139.70 + 41.064 w —277.99 + 2. 379 w —170.98 Santiago Equatorial . . . Washington Equatorial . . . Cape of Good Hope Equatorial C ipe of Good Hope Meridian . Greenwich Equatorial . . . Greenwich Meridian . . . . Cambridge Equatorial . .' . Athens Meridian 66.012X+ 39.811 y+ 32.841 z 100.243 X — 211.748 y + 2S2.347 z 75. 039 x —103. 827 y + 69.424 z 21.694 X— 30.617 y+ 31. 778 C 4.297 x— 5.903y+ 3.290 z 26.950X+ 8.152y + 58.878 z + 9.015t, 47.431 X — 96.401 y + 80.976 z 21.565X— 0.005y+ 22.935 z — 2.405t2 — 17.828 v + 80. 599 w— 48.93 =0 — 40. 298 w +498.27 =0 + 106. 929 -H- +316.13 =0 + 33.783W+ 93.80 =0 — 4.382 w + 5.02 =0 — 14. 748 w— 64.67 =0 — 31.783 w +220.35 =0 — 6.502 w +131.85 =0 cclxii FUNDAMENTAL EQUATIONS. Fundamental Equations for Mars I — Continued. Greenwich Meridian Alb*** Meridian . 17.000x4- 9. 944 y 4- 9.015s + 19. 000 1, 0.0001+ 0.097y — 9.405 z 4- 38. 000 1. — 10. 854 w 4. 6. BO — 0.033 w — 70.70 Baotiafo Equatorial — 65.86914- 16.342 y- 17.888 a + 448.187 T- 80.490 w -390.49 Santiago Equatorial .... Washington Equatorial . . Cape of Good Hope Equatorial Cape of Good Hope Meridian Greenwich Equatorial . . . Greenwich Meridian . . . Cambridge Equatorial . . . Athnu Meridian . . '. . 323.309x4- ».760y4. BO.SMs - 36. 292X4- 39.342y- 40.998m 221 .511 x — 169.990 y 4- 106.999 s C4.7BJX— 43.93174- 30.783s - 16.548x4- 5.911 y— 4.388 s -14.584x4- 0.894 y — 14.74* s — 10.854 t, - 37.968x4- 41.064 y— 31.783s - 11.854x4- a.379y— 6509z- 0.0321, - 90.490 T 4- 497.058 w 4-344.76 =0 4. 14.915 w —135.85 =0 4- 314.688 w 4- 738.93 =0 4- 91.590 w 4-191.60 «0 4- 14.103W — 1.7S =0 4- 9.150W — 3.41 =0 4- 35.01 lw —190.94 =0 4. 3.758 w — 85.77 —.0 Santiago Equatorial . . . Washington Equatorial . . C»pe of Good Hope Equatorial Cape or Good Hope Meridian Greenwich Equatorial . . Greenwich Mcridinn . . Cambridge Equatorial . . [im] =9074. 59 [iw] = 3136.65 [m]= 734.81 [imj = 51.77 [«n]= 399.63 [nn]= 796.07 Atheni Meridian [m] = 2543. 61 6 B. FINAL EfiVATIONS FOR MM!- II. Santiago Equatorial. 388.780 X— 10.810 y 4- 989.436 1 — 39.190 t- 52.755 m + 43.496 v 4. 428.443 w 4. 983.85 =0 - 10. 810x4- 706.048 y— n.993s4-73.77St4-9».189n4. 66.939ir— 30.833 w — 3533.39 =0 989. 436 x— 17. 993 y 4. 351.3031 — 55. 780 t — 74. 910 n 4. 76.240 T 4. 994.189 vr — 6.06 =0 -39.190x4- 73.779y— 55.780 z 4. 39.190 t 4. 53.755 a — 0.161V— 41. 534 w— 95666 =0 -59.755x4- 99.189y— 74. 910 » 4. 59.755 t 4- 71.039 n — 0.650v— 55.938 w — 345.77 =0 43.496x4- C6.999y4- 76.940s— 0.161t— 0.650 a 4. 798.415 v 4. 38.430W— 596.79 =0 498.443X— 30.833y 4-994. 189z-z41.534t — 55.938a4. 38.430 v 4. 483.588 w 4- 493.46 =0 [mi] = 10950.67 313.630 t 4- 497.593 a — 310.36 = 0 497.593 1 + 588.809 n — 498.79 = 0 [«»] = 351.76 Santiago Meridian. 79.000x4- 8.531 y 4. 50.059 s 4- 5.000 t 4- 6.807 n 4. 90.340 w- 3.790 =0 8.531 x 4- 135. 139 y 4-15.168x4- 29.83914- 99.414 a 4. 4.037 w — 516. 87< =0 S0.053X+ 15. 168 y 4- 57. 164 m— 4.786t— 6. 765 n 4. 62. 975 w— 50.617 =0 5.000x4- 99.B39y— 4.786x4- 79.000 1 4. 108.983 a 4. 0.160 w — 165.798 =0 6.807x4- 99.414y— B. 765 z + 108.283 t + 149.787 n 4. 8.501 w — 917.846 =0 90.340X4- 4.037 y 4- 59.975 s 4- 6.160t4- 8.501 a 4. 104.174 w 4. 91.056 =0 [nn]= 3675. 7(1 N- r/.!, nit ,-/-//•//. 97.000X— 3.648 y 4- 19.715 s — l.OOOt— 0.765 n 4. 30.768 w 4. 11.900 =0 - 3.648 x 4- 49.986 y 4- 0.118z+ 8.346 t 4. 11.133 n — 5.949 w — 170. Mi =0 19.715x4- 0. 118 y 4- 95.951s— 6.6691— 8.887 n 4. 90.674 w — 19.874 =0 -1.000x4- 8.346y— 6.689x4.97.00014.37 051 n— 0.494W— 96.800 =0 - 0.765 x 4- 11. 133 y— 8.887s 4- 37.051 t 4. 51.333 n + O.lMw— 34.196 =0 30.768X— 5.949 y 4. 90.674 s — 0.49414- 0.153 n 4- 35.383 vr 4- 91904 =0 [nn] = 793.80 FUNDAMENTAL EQUATIONS. Cclxiii Washington Equatorial. 12.380X — 0.063 y + 0.243 z — 5.226 w + 17.20 = 0 - O.C63x + 0.603y — 0.0431 + 0, 099 w — 0.39 =0 0.243 X — 0.043 y + 0.008 Z — 0.108 w + 0.37 =0 — 5.226x + 0.09»y — 0.108 z -f 2.215 w — 7.29 =0 [nn]=25.51 17. 220 t + 25. 736 ll — 42.817 =0 25.736 t + 38. 463 n_— 63.981 =0 [nn] = 107.066 Cape of Good Hope Meridian. 46.000X — 6.618y + 16. 550 z + 55. 192 w+ "29.180 ==0 - 6.618 X + 41. 365 y — 9.743Z— 8.399 w — 156.136 =0 16. 550 X— 9.7'I3y + 12. 107 z + 19.034 w+ 27.336 =0 55.192X.— 8.399y + 19.024 z + 66.398 w + 38.773 =0 [nn] = 632.69 Greenwich Meridian. 36.000 x + 29.646 y + 37.068 z — 21 .216 w — 83.70 =0 29. 646* + 92. 658 y + 55. 541 z— 13. 367 w— 309.97 =0 / 37.068 X + 55.541 y + 73,226 z — 19.344 vr — 217.38 = 0 — 21.2161— 13. 367 y— 19.344 z + 12. 809 w + 32.08 =0 [nn] = 1221.95 Kremsmiinsfer Meridian. 13.000 X + 14.104 y + 10.118 z + 6.638 w — 32.500 =0 14.104% +25. 300 y + 18.096 z + 6.448 w — 69.529 =0 10. 118 I -f 18. 096 y + 13.944 z + 4.635 w —53.038 =0 6.638Z + 6.448y + 4.635 z + 3.447 w — 14.028 =0 [nn] = 303.509 In this series we have seven systems of equations, if we retain the supplementary ones from the Santiago Meridian-circle as a distinct group hy themselves, which is for the present the best course. These seven systems contain nine unknown quantities, viz : x, y, z, w in all the equations ; t, u, V in those from the Equatorial at Santiago ; t^, Ua in those from the meridian- circle at the same place. The quantities depending upon the unknown corrections to the semidiameter are already eliminated from the Washington observations, owing to the uniform observance of the rule always to compare both limbs of the planet with the comparison-star. Had other observers pursued the same course much labor and embarrassment might have been avoided. At the Cape of Good Hope, Greenwich, and Kremsmiinster, the center was estimated by the observer. In consequence of the considerations intimated when considering the final equations for Mars I, the quantities uu U2 may be removed from all equations in which they occur, and the number of unknown quantities be thus reduced to seven. In the experimental solution, however, the correction of the semidiameter t = -f- 0". 98960, deduced from the additional equations for the Santiago Equatorial, was substituted, and both the quantities t2 and U3 retained in the equations to be solved; these latter being formed by simple addition of the correlative equations in each of the groups, excepting the one derived from Kremsmiinster observations. This solution gave — v, = + 0".493 tj= + 4". 63322 U2 = — 2".57824 or after making u2 = 0 tj = + 1". 09704 cclxiv FUNDAMENTAL EQUATIONS. Not substituting these values, but retaining the terms containing them for the sake of a value of v to be deduced from the totality of the Santiago Equatorial observations, and in hopes of arriving at some safer values of t^ and t,, we have, as our fundamental equations — Fit in lamented Equations for Mars II. Santiago Equatorial .... 383. 780x — 10. 810 y ,.-, 496s —39.1901, + 43.496V +498 .443W -• •.« Santiago Meridian .... 79 OOOx + 8.531 y + • 053s + S.OOUt. + 90. 340 w — 3.790 Santiago Meridian (rappl.) . . 97 OOOx - 3.684 y :• i" 715 S — 1 000 t. + 30. 768 w + 11.900* Washington Equatorial . . . 12. 380x - 0.063 y 4 ". 343s — 5.996 w + 17.90 Cape of Good Hope Meridian . 46. OOOX — 6.618 y • 16. 550 » + 55. 199 w + 99.160 Greenwich Meridian .... 36.000 x + 99.646 y ~ 37.C68S — 91. 916 w — 83.70 Krcnumuiuter Meridian . . . 13.000 x + 14. 104 y •'•- 10.118s + 6.636 w — 39.500 n Santiago Equatorial .... — JO 810 x +706.048 y IT 993s + 73.773 1, + 66. 999 T — 30.833-nr —9523.99 li Santiago Meridian 8. .131 i +125. 129 y J II 168s + 92. 839 1, + 4 .037 w — 516.879 ii Santiago Meridian (rappl.) . . — 3.648 x + 49.986 y + I 118s + •8.346 1. — 5 .949 w — 170.945 Washington Equatorial . . . — 0.063 x + 0.603 y — 0.043s + o .099w — 0.39 n Cape of Good Hope Meridian . — 6.618 x + 41.365y — 9.743 s - 8.J99W — 156.136 ii Greenwich Meridian .... 99 646X + 93. 658 y + 55.541s — 13. 367 w -309.97 1 Krrnumuniter Meridian . . . 14 104 x + 95.300 y + 18.096s + 6.44SW — 69.599 =-- u Santiago Equatorial . . . . 983. 496x — 17. 993 y + 351. 303s — 55.780t' + 76.240 T- + 294 .189 w — 6.08 1 50 052X + 15.168 y i 59 164s — 4.786t. + 52 .875 w — 50.617 | Santiago Meridian (rappl.) . . 19. 715 x + O.llBy + • 951 s — 6.6691. + 20.674 w — 19.874 '| Washington Equatorial . . . 0.243 X — 0.043y + 0.008s — 0.108W + 0.37 n Cape of Good Hope Meridian . 16 550x — 9.743 y + 12.107s + 19.024 W + 97.336 n Greenwich Meridian .... 37.068 X + 55.541 y -; 73 •.'•.ii /. — 19. 344 w -217.38 1 Kremimunitcr Meridian . . . 10.1181 + 18.096 y -;- 13.944 T + 4. 635 w — 53.038 'i Santiago Equatorial .... — 39.190 x + 73. 772 y — 55.780s + 39.190 1, — O.WlT — 41. 534 W -256.66 " 5. OOOx + 22. 839 y L -.-••. /. 4.7MMS. + 6 160 w — 165.798 ii Santiago Meridian (>uppl.) . . — l.OOOx + 8.346 y - 6.669s +27. 000 1. — 0.424W — 96.800 n Santiago Equatorial 43. 496 x +66. 929 y + 76.340s — 0.1611, +798.415 V 8.430W +596.79 =( > Equatorial . . . tferidian .... Santiago Meridian (rappl.) . Wuhington Equatorial . . Cape of Good Hope Meridian Greenwich Meridian . . . iter Meridian . . 438.443X — 30.833y +294.189S —41. 534 t, + 38.430 v +483.588W +433.46 90.340X + 4.037y + 52.975s + 6.1601, 30.768 X - 5.949 y + 90.674s — 0.4241. • 5.996 x + 0.099 y — 0.108s 55.I99X - 8.399y + 19.094s . 91.916 x - 13.367 y - 19.344s 6.638 x + 6.448 y + 4.635s + 104.174 w + 35. 383 w + 9.215 W + 66.398 w + 19.809 W + 3.447 w + 91.056 + 91.904 — 7.99 + 38.773 + 32. OS + 14.028 Santiago Equatorial [nn] = 10950.67 Santiago Meridian [mi] : - 9675.76 Santiago Meridian (mippl.) [nnj = 793.80 Washington Equatorial [n*] -_ 35.51 Cape of Good Hope Meridian [m] — 639.69 Greenwich Meridian [mi] = 1991.95 KremsmuiMU-r Meridian [•»] = 303.59 FUNDAMENTAL EQUATIONS. FINAI/ EQUATIONS FOR VBIffUS I. Santiago Equatorial. 47.710 X— 74.402 y + 380.398 z 4. 60. 450 14. 124.493 M 4- 243.687 v 4. 272.519 w — 138.99 =0 - 74.402 x 4- 950.347 y — 140.682 z — 390.393 t — 908.597 u — 123.942 v — 51.518 TV — 1004.41 = 0 380.3981 — 140. 582 y + 788.860 z + 133.0721 + 251.694 tt+ 267.689 V -f 361.892 TV — 192.10 =0 60.4501 — 390.393y + 133.072Z -f. 233.110t -f 572".369«+ 59.014 V 4. 44.349W+ 331.68 =0 124. 493 X — 908. 597 y + 251. 694 z 4. 572. 369 t + 1452.215 ll -f. 108.546 y + 92.717TV + 737.43 =0 243.687 X — 123.942 y + 267.689 z 4. 59. 014 t 4. 108.546 u + 1155.576 V -j- 295.185 w — 521.47 =0 S72.519X — 51 . 518 y 4- 361. 892 z 4- 44.349 t + 92. 717m 4. 295.185 v 4. 320.140 TV — 165.46 =0 [nn] = 2219.31 13. 480 t + 24.601m — 14.176 =0 24.601 1 + 44.923 u. — 05.824 = 0 [nn] = 15.725 41.680 t + 94.203 m — 20.099 =0 94.203 t + 224. 107 u — 42.479 =0 [nn] =20.654 Santiago Meridian. 70.000X— 9.090y+ 89.606 z 4. 4.000t4- 9.127 m 4. 33.092 TV 4. 218.200 =0 — 9.090 X 4- 224. 002 y — 22.218 z — 111 .434 t — 259.728 ra 4- 17.679 TV — 341.171 =0 89. 606 x— 22 218 y 4- 179.593 z 4. 7.351 t 4- 10.490 11 4. 34.705 TV 4. 327.173 =0 4. 000 x — 111. 434 y 4. 7. 351 z 4. 70.000 t 4. 183.073 m — 10.780 TV 4. 169.480 =0 9.127 x — 259.728 y 4- 10.490 z 4- 183.073 t 4. 503.095 m — 27.890 TV 4- 391.085 = 0 33.092x4- 17.679 y 4. 34.705 z— 10.780 1— 27. 890 u 4- 19.258 w + 73.701 =0 [nn] = 1425.070 35.00014. 92.619m 4. 18.125 =0 92.619 t 4- 260.040 « 4. 47.560 =0 [nn] =-. 18.513 Washington Equatorial. 51.700X— 57.540y4- 84.506Z— 94.753TV— 73.58 =0 — 57. 540 X 4- 211. 264 y — 135.640 z 4- 94.506 TV — 117.64 =0 84.506 x — 135.640 y 4. 173.963 z — 142.839 TV — 77.93 = 0 — «4. 573x4- 94.506 y — 142. 839 z + 177. 887 TV 4. 145.10 =0 [nn] = 829.18 39.91014- 95.671m— 45.889 =0, 95.671 t + B33.684 m — 105.478 = 0 [nn] = 87.586 Greenwich Meridian. 17.000x4- 8.781 y 4- 32.410 z 4- 9.000 t — 38.509 TV 4- 39.92 =0 8.781 X 4- 81.024 y 4. 18.684 Z 4- 5.797 t — 16.205 TV — 101.30 =0 38.410 x 4. 18.684 y 4- 91. 178 z 4- 8.002 t — 59.682 w + 23.00 =0 9.000 x+ 5. 797 y 4- 8.002 z 4- 15.000 t — 23.624 TV 4. 32.48 =0 — 38.509 x — 16.205 y — 59.682 z — 23.624 t + 94.306 TV - 122.40 = 0 [nn] = 435.60 Altona Meridian. 2.000x4- 4. 564 y 4- 4.174 z — 3.974 TV — 2.500 =0 4.564 x 4- 10.434 y 4. 9.561 z — 9:058 TV — 5.935 = « 4.174x4- 9.561 y 4- 8.777 z — 8. 273 TV — 5.637 =0 — 3.974X — 9.058y — 8.273 z 4- 7. 905 TV 4. 4.833 = 0 [nn] = 5.77 Z°10 FUNDAMENTAL EQUATIONS. We have here five systems of equations, if we choose to count the groups furnished by two observations at Altona, which are given for the sake of completeness and which appear to be of high excellence, although the details of the reduction are wanting. The number of unknown quantities is brought down from ten to eight by rejection of the terms containing u. The solution of the additional equations for semidiameters, (those from direct and those from indirect measurements being combined,) gives for the Santiago Equatorial t = -J- 0".6214, if we assume u, = 0. Under the same circumstances the meridian-circle at Santiago gives t, = — 0".5179. This last value, being negative, was so unexpected that it seemed desirable to incorporate with it the corresponding value deduced from observations at the other conjunction. By the Fenus II series of measurements t = — 0".2868 when u = 0 ; and the combination of the results according to the weights, gave t = — 0".3879, which value was introduced into the system of equations. Our unknown quantities are thus reduced to six, and for the experimental combination and solution, which gave — V = + 0".595, the t of the Greenwich group was disregarded. We have then the annexed fundamental equations, which contain only four unknown quantities besides the Santiago and Greenwich t. * Fundamental Equations for Venus I. Santiago Equatorial . . . . 947.710 x — 74.409 y 70.000 x — 9.090y + 380. 398s + 89.606 « + 243.687 V + 272.519 w + 33.092 -vr — 101.43 + 216.648 Washington Equatorial . . Greenwich Meridian . . . Altona Meridian .... SI. 700 x — 57.540 y 17. 000 x + 8.781 y 9.000 X + 4.564 y + 84. 508 s -f. 32. 410 s •f 4.1741 — 94.753 w + 9.000 t — 38. 509 -w — 3.974 w — 73-58 + 39.93 — 9.500 Santiago Equatorial . . . . —74. 403 x +950. 347 y . — 9.090X +234. 009 y - 140.583 X — 93.218s — 193.949V — 51. 518 W + 17. 679 w —1946.99 — 997.917 Washington Equatorial . . Greenwich Meridian . . . Altona Meridian .... . —57. 540 x + 311. 264 y 8.781 x + 81. 024 y 4.664 x + 10. 434 y — 135.640 z + 18.684* + 9.561s -f. 94. 506 w + 5.797 t — 16.205 w — 9.058 w — 117.64 -101.30 — 5.935 Santiago Equatorial . . . 380.388 x — 140.582 y 89. 606 x — 23.918 y + 788.860 s + 179.593 x + 267.689 v + 361.899 w + 34. 705 w — 109.41 + 334.390 Washington Equatorial . . Greenwich Meridian . . . 84.506 x —135. 640 y 33. 410 x -f 18.864 y 4.174X + 8.561 y + 173.983 * + 91. 178 C + 8.777s — 142.839 vr + 8. OOSt — 59.682 W — 8 973 w — 77.93 + 83.00 — S.637 Greenwich Meridian . . . D.OOOx + 5.797y + 8.002s + 15.000 1 — 93.624 w + 33.48 Santiago Equatorial . . . Santiago Equatorial . . . 943.687 x — 133.949 y 973.519 X —51. 518 y 33. 092 X + 17. 679 y + 367. 689.x + 361. 892s + 34.705s +1155. 576 v +995. 185 w + 295. 185 V +320. MOW + 19.958 w + 476.53 — 137.90 + 77.885 Washington Equatorial . . Greenwich Meridian . . . Altona Meridian . . . . . — 94. 753 x + 94. 506 y . - 38. 509 x — 16.905 y . — 3.974 x — 9.058 y — 142.839 s - 59.682s — 8.973s + 177. 887 ir — 23. 694 t + 94. 306 w + 7.905W + 145.10 - 129.40 + 4.833 [nn] — 9763.23 [nil] — 1304.06 [mi] — 899.18 [«n] — 435.60 Altona Meridian . [wil - 6.77 FUNDAMENTAL EQUATIONS. FINAL EQUATIONS FOR VENUS II. Santiago Equatorial. 71.3001+ 59.197 y -f 94.582Z + 6.820 t + 21.753 w + 14.083 V + 112.469 W + 245.10 »c 0 59. 197 X + 236.451 y + 142.054 z — 2.387t— 7.595 w + 135.098 V + 83.492 W + 610.18 =0 94. 582 x + 142.054 y + 191. 935 z + 0.349 t + 1.10911 + 39.172 V -j- 132.967 w + 430.99 =0 6.820X — 2.387 y + 0.349Z + 6.820 t + 21.753 M — 4.182V + 13. 124 w— 10.84 =0 S1.753X — 7.595 y + 1.109 z + 21.753 t + 69.405 tt — 13.217 V + 41.859W — 34.44 =0 14.083 x + 135.098 y + 39.172 z— 4.182 t — 13.917 » + 238.069 v + 21.378 w + 276.40 =0 112.469* + 83.492 y + 132.987 z + 13.124 t + 41. 859 M + 21.378 v + 181.739 w + 375.20 =0 [mi] = 2168.629 64. 700 t + 149. 230 a — 48.898 =0 149. 230 t -f 355. 388 It — 102.911 =0 [nn] = 110.211 25.9601+ 71. 843 u — 25.463 =0 71. 843 t + 202.954 u — 71.887 =0 [nn] =30.827 Santiago Meridian. 46.000X + 21.787 y + 45.944 z + 34.000 t + 95.362U+ 92.561 w + 171.60 =0 SI. 787 X + 114.854 y + 49. 873 z + 42.029t+ 95.486M+ 38.404 w + 346.53 =0 45.944X+ 49.873 y + 85. 807 z + 30.689t+ 71.311H+ 77.707 w + 183.75 =0 34.0001+ 42.029 y + 30.689 z + 46.000 t + 121.434 u + 71.449 w + 224.00 =0 95. 362 X + 95.486 y + 71. 311 z + 121. 434 t + 333. 002 u + 205. 774 w + 603.21 = 0 92.561 x + 38.404 y + 77.707 z + 71.449 t + 205.774 tt + 192.248 w + 357.69 =0 [nn] = 1650.24 45. 000 t + 116. 343 n + 12.905 =0 116.343 t + 312.751 u + 45.095 = 0 [nn] = 41.957 Washington Equatorial. 13.560 z — 11. 736 y + 23. 555 z — 14.341 w + 10.89 = 0 — 11. 736 x + 58. 890 y— 15.577 z + 9. 803 w + 91. 95 =0 23.555 X — 15.577 y + 42.367 z - 24. 950 w + 30.18 = 0 — 14.341X+ 9. 803 y — 24. 950 z + 15. 362 w — 16.66 =0 [nn] = 221.76 18.200 t + 37.113 u — 28.813 = 0 37. 113t + 76.065U — 60.112 =0 [nn] = 51.802 Greentvich Meridian. 17.000 X + 10. 176 y + 16. 798 z — 7.000 t — 26.922 w + 41.51 —, 0 10.1761 + 41. 987 y + 25.943 z + 11. 168 t — 13.274 w + 106.32 = 0 16.7981 + 25. 943 y + 40.888 z + 4.712 t - 19.179 w + 73.27 =0 — ^ 7.000 X + 11. 168 y + 4.712 z + 17.000 t + 13.696 w + 13.19 =0 — 86. 922 X — 13.274 y — 19. 179 z + 13.696 t + 45.186 w — 60.48 =0 [nn] - = 313.30 * Cracow Meridian. 16.000 X — 19. 343 y + 18. 034 z — 17.661 w + 12.800 = 0 — 19.343X + 45.152y — 24.516z + 17.973-w + 52.463 = 0 18.034 x — 24.516 y + 23.921 z — 18.502 w + 6.448 = 0 — 17.661 x + 17.973 y — 18.502 z + 20.332 w — 24.859 =0 [nn] = 393.62 This series comprises five systems, of which the one derived from Cracow observations was disqualified for criticism or examination in consequence of the entire absence of the needful Cclxviii FUNDAMENTAL EQUATIONS. data. All terms containing n being rejected, the additional equations for semi-diameter furnish, after combination with those deduced from observations of Venus I, for the Santiago Equatorial, t = + 0".7450 for the Santiago meridian-circle, t = — 0".38812 Substituting these values, we obtain a series of equation systems containing only x, y, z, w, V, and the t for Greenwich. Omitting the latter term, summing the equations, and solving, we obtain — v = + 0".534 and the fundamental equations are — i FUNDAMENTAL EQUATIONS FOR VENUS II. Santiago Equatorial .... 71.300x4- 59.1'J7y+ 94.589* + 14.083 v + 112.469 w + 350.854 = 0 Santiago Meridian .... 46.000 z -f. 21.787 y+ 45.944s + 82.561 w 4. 158.404 =0 Wuhington Equatorial . . . 13.560 x + 11.736x4- 93.555* — 14.341 wr + 10.89 =0 Greenwich Meridian .... 17.000x4- 10.176x4- 16.7X8 »— 7.0001 — 96.922 w 4. 41.51 =0 Cracow Meridian 16.000 x — 19.343 y 4- 18.034 s — 17.661 w + 13.800 = 0 Santiago Equatorial .... 59.197 x 4- 336.451 y 4. 149.054 x + 135.096 v 4. 83.493 w 4. 608.376 = 0 Santiago Meridian .... 91.787 x 4- 114.854 y 4. 49.873 > 4- 38.404 w 4. 330.817 = 0 Wuhinfton Equatorial . . . —11.736x4- 68.890jr— 15.577m 4- 9.803 w 4. 91.94 =0 Greenwich Meridian .... 10.176x4- 41.987x4- 25.943 x + 11.168 t — 13.374 w 4- 106.33 =0 Cracow Meridian —19.343x4- 45. 158 y — 34. 516 x 4- 17. 973 w 4- 53.463 =0 Santiago Equatorial .... 94. 582x 4. 143.054 y 4- 191.935 x 4. 39.173 v 4. 133. 967 vr + 431.354 = 0 Santiago Meridian . '. . . 45.944x4- 49.873 y 4. 85.807* 4- 77.707 w + 171.839 =0 Washington Equatorial . . . 23.555 X — 15.577 y 4. 43. 367 x — 24.950 w 4. 30.18 =0 Greenwich Meridian . . . . 16.798x4- 35. 943 y 4- 40.888x4- 4.7131 — 19. 179 w 4- 73.37 =0 Cracow Meridian 18.034 x— 94.516 y 4- 23.931 x — 18'503w4- 6.448 =0 Greenwich Meridian . ... - 7.000x4- 11.168*4- 4.713x4-17.0001 4- 13.696w4- 13.19 =0 Santiago Equatorial .... 14.083 x 4. 135.098 y 4- 39.173* 4. 338.069V 4. 91. 378 w— 5.680 =0 Santiago Equatorial .... 113.469x4- 83.493 y + 132.967 x + 31.378 v 4. 181.379 w 4. 385.119 = 0 Santiago Meridian .... 92.561x4- 38.404 y 4- 77.707* 4. 192.848 w + 339.959 =0 Washington Equatorial . . . -14.341x4- 9.803 y — 94.950* 4- 15.369 w- 16.66 =0 Greenwich Meridian .... — 96.933 x— 13.974 y - 19.179* 4. 13.696 t 4- 45.186 w- 60.48 =0 Cracow Meridian — 17.681 X 4. 17.973 y — 18.509 c 4- 90.332 w - 34.859 = 0 Santiago Equatorial .... [nn] = 9146.084 Santiago Meridian . . . . [tin] -. 1483.99 Waihington Equatorial . . [nn] = 991.76 Greenwich Meridian . . . [nn] _ 313.30 Cracow Meridian .... [nn] = 393 63 The values obtained for v in these four solutions are quite accordant, and, when combined with one another with due regard to weights, give us the preliminary value — v = + 0".6T. PRELIMINARY SOLUTIONS. § 12.-PRELIMINARY SOLUTIONS. The consideration of the respective weights to he attributed to the groups of observations made by different observers, with different instruments, and at different places, has been postponed until a critical investigation of the mean errors and average discordances should render it possible to deduce a measure of precision from the observations themselves. And since it was clearly evident that at least two solutions of the fundamental equations would thus become imperative, the definite substitution of the values adopted for several of the comparatively unimportant unknown quantities, has been delayed as long as possible. Using now closely approximate determinations of x, y, z, and w, these other terms may be deduced with tolerable precision, and their influence then eliminated. The value of vr = + 0".57 being adopted and substituted in all the equations derived from the micrometer-observations with the Santiago Equatorial, there remain only the quantities t for divers instruments, which may be numerically deduced from those equations in each set, which contain terms multiplied by [dd]. For some cases this appears the only practical method ; in all it is the most convenient. The only exception is furnished by the equations deduced from Santiago equatorial observations ;" in these those values of t have been employed, which result from the combination of all measurements of the semi-diameter made with the instrument either directly or indirectly during both oppositions or conjunctions ; so that — for Mars, t = + 1".450 for Venus, t = + 0".745. In the second Greenwich series of meridian observations of Mars, the terms dependent upon the apparent semidiameter do not appear. The other Greenwich series give the following equations : Mars I. 24.000 x + 4.677 y + 26.950 z + 17.000 t — 14.584 w — 11.50 = 0 whence t = — 0".1915. Venus I. 17.000 x+ 8.781 y + 32.410 z + 9.000 t— 38.509 w + 39.92 = 0 whence t = — 2".9047. Venus II. 17.000 x + 10.176 y + 16.798 z — 7.000 t — 26.922 w + 41.51 = 0 whence t = — 0".3231. These values of t for the Greenwich Circle are, of course, to be substituted in their respective groups of equations. Finally — inasmuch as sundry discrepancies between the results of the "Supplementary Equations" (derived from meridian comparisons of Mars II at Santiago) and those from nearly simultaneous observations with the equatorial, and moreover the large negative values of the corrections to the semidiameter, all seemed to imply some unknown source of discordance — CCbtX PRELIMINARY SOLUTIONS. these supplementary equations were submitted at this stage of the computation to a new scrutiny, and a term introduced containing v,, — the correction to the adopted value of u revolution of the micrometer-screw in the Santiago Circle. The " Supplementary Equations" thus assume the following form : 27.000 x- 3.648 y + 19.715 z- 1.000 t, + 1.725 v, + 30.768 w + 11".200 — 3.648 x + 49.286 y + 0.118 z + 8.34612+ 4.428 v, - 5.949 w — 170".945 19.715 x + 0.118 y + 25.951 z- 6.669 t, + 6.672 v, + 20.674 w- 19".874 =0 - 1.000 x + 8.346 y- 6.669 z + 27.000 t, + 4.287 V,- 0.424 w - 26".800 =0 1.725X + 4.428 y + 6.672 z + 4.287 t, + 43.604 vs -f- 0.969 w - 44".221 =0 30.768 x — 5.949 y + 20.674 z — 0.424 tj + 0.969 vs + 35.383 w + 21".904 = 0 and from the fifth equation we obtain by substitution — V, = + 0".3893 the substitution of which in the other equations reduces the group to the form : 27.000 x- 3.648 y + 19.715 z— 1.000 tj + 30.768 w + 11".872 =0 - 3.648 x + 49.286 y + 0.118 z + 8.346 t, - 5.949 w — 169".221 = 0 19.715 x+ 0.118 y + 25.951 z— 6.669 t, + 20.674 w - 17".277 =0 — 1.000 x + 8.346 y — 6.669 z + 27.000 tj - 0.424 w - 25". 132 = 0 30.768'x - 5.949 y + 20.674 z — 0.424 t, + 35.383 w + 22".281 = 0 or, after introducing t = 1".097, to the finally adopted value for the supplementary equations from the Santiago meridian circle : 27.000 x — 3.648 y + 19.715 z + 30.768 w + 10".775 = 0 — 3.648 x + 49.286 y + 0.118 z - 5.949 w — 160".065 = 0 19.715 x+ 0.118 y + 25.951 z + 20.674 w- 24".593 =0 30.768 x - 5.949 y + 20.674 + 35.383 w + 21".816 = 0 The four series of normal equations, thus brought to their ultimate form, now follow, together with the values of the unknown quantities which they afford prior to multiplication by any factor dependent upon the instrument or the observer. The results of this solution furnish an approximate criterion for the relative value of the several series of observations, and we may hence deduce their respective weights. The groups of equations, when multiplied each by its own weight and added anew, will furnish us results as trustworthy as the materials at our disposal permit, and beyond which it would be needless to push the investigation. PRELIMINARY SOLUTIONS. cclxxi MARS I. Normal Equations. Santiago Equatorial. Washington Equatorial. Cape G. H. Equatorial. Cape G. H. Meridian. Greenwich Equatorial. Greenwich Meridian. Cambridge Equatorial. Athene Meridian. Tola . w 245.980 93.950 156.410 46.000 20.200 24.000 60.080 38.000 684.620 [ai] 50 301 — 92.428 —114.932 — 29.619 — 5.291 4.677 — 59.593 — 1.862 -248.747 [oc] 66.012 100.243 75.039 21.694 4.297 26.950 47.431 21.565 363.231 [«*] OT M 322.302 165.077 39.811 39.760 — 36.292 250.553 —211 .748 39.342 221.511 187.576 —103.827 —169.220 64.792 54.230 — 30.617 — 43.931 —16.548 10.749 — 5.903 5.911 — 14.584 67.389 8.152 0.894 — 37.988 118.579 — 96.401 41.064 — 11.854 53.921 — 0.005 2.379 491.339 908.074 —400.538 — 83.801 M 32.841 80.599 322.347 — 40.298 69.424 106.929 21.778 30.783 3.920 — 4.382 58.878 — 14.748 80.976 — 31.783 22.935 — 6.502 513.099 120.598 [«1 427.0B8 14.215 314.688 91.590 14.102 9.150 25.011 3.758 899.572 [an] • 164.590 —462.650 329.730 —616.860 610.680 —561.350 130.970 —170.000 — 1.000 16.640 — 14.760 —140.260 175.610 —271.610 257.300 —170.790 1553.120 —2410.160 M — 57.280 302.400 498.270 —135.850 316.130 738.930 93.800 191.600 5.020 — 1.720 — 66.400 — 1.330 213.990 —lib. 940 127.240 — 85.830 1139.770 887.260 [nn] 1896.170 2074.590 2136.650 734.810 52.770 397.230 810.530 8412.140 10514.890 The solution of the equations derived from the last column gave results so extremely discord- ant from the approximate values already known, that it was found necessary to subject the several individual systems to a preliminary scrutiny, and to deduce their approximate weights by means of equations depending on the equatorial comparisons alone. The three series of meridian observations being provisionally omitted from the sum total, the solution afforded the following values for the unknown quantities and mean errors : y = z = w = — 1".5373 =fc 0".0896 + 2".89YO ± 0".0626 + 1".4334 ± 0".1021 — 0".1402 ± 0''.0619 Santiago Washington Cape G. H. Greenwich Cambridge Sum Equat. Cape G. H. Greenwich Total. Athens Equatorial. Equatorial. Equatorial. Equatorial. Equatorial. Comparisons. Meridian. Meridian. Meridian. [nn] 189B.17 2074.59 2136.65 52.77 810.53 6970.71 734.81 397.23 8102.75 2412.14 [nn.4] 169.06 326.68 126.53 89.58 132.50 844.35 137.90 89.58 1071.83 1526.91 I ± 0.836 •± 1.906 ± 0.911 ± 2.352 ± 1.537 ± 1.214 ± 1.812 ± 2.116 — ± 6.701 P. 2.111 0.406 1.776 0.267 0.624 1.000 0.449 0.329 — 0.033 The source of the discordance is thus immediately manifest ; and it is evident that in the new solution the Athens observations may be advantageously omitted. The order of the mean errors thus deduced for the two other meridian series being not essen- tially different from that of those derived from star-comparisons, and used for this last solution, the weights given above are clearly still applicable to their respective system of equations, and were adopted. ccbcxii PRELIMINARY SOLUTIONS. .M Alts II. Normal Santiago Equatorial. Santiago Mcjidun. Butlagn Merl- *••, («PPI.> Wellington Equatorial. Cap* G. II. Meridian. Greenwich Meridian. ' Krenumdiuttr Meridian. Total. [..] 3HS.780 79.000 37.0*0 11.380 46.000 36.000 13.000 596.110 C«*J — 10.810 8.531 — 3.648 -0.063 — 6.618 I • . ;>. 14.104 31. 143 l«3 368.** 50.051 19.715 0.343 16.550 37.068 10.118 416.179 [«d 438.443 90.340 30.768 — 5.996 55.193 - 11.316 -6.638 584.938 [»»J 706.048 195.129 49.986 0.603 41.365 92.658 25.300 1040.389 M — 17. tea 15.168 0.118 — 0.043 — 9.743 55.541 18.096 61.144 [»«] — 30.633 4.037 — 5.949 0.099 - 8.399 - 13.3J7 -6.448 — 47.964 M 351.303 57.164 35.951 0.008 13.107 73.996 13.944 533.703 [<»1 304.189 53.975 30.674 — 0.106 19.034 — 19.344 — 4.635 373.045 Iff] 483.588 104.174 35.363 9.915 66.398 12.809 3.447 708.014 [»] 345.006 1.765 10.775 17.200 99.180 — 83.700 —33.500 187.741 p.] —2381.367 —491.833 —160.065 - 0.390 —156.136 —309.970 —69.539 —3569.300 [<-] — 53 .301 — 55.867 -94.503 0.370 37.336 —317.380 -53.038 — 376.373 [*0 379.711 37.814 31.816 -7.390 38.773 32.080 14.098 507.019 [«•] 9396.940 1406.860 739.660 35.510 633.690 1391.950 303.510 14588.440 Solving the equations derived from the last column, it became evident that a nearer approach to accuracy would be attainable by the exclusion of the Kremsmunster' observations. This being done, the solution gave the values and mean errors thus : x = — 1".7536± O'MSTS y == + 3".4538 ± 0".0516 Z= + l".513f ± 0".1069 w = + 0".1828 ± 0".1463 Santiago Equatorial. Santiago Meridian. Santiago Meri- Washington dian, (suppl.) Equatorial. Cape G. H. Meridian. Greenwich Meridian. Total. Kremsmfi niter Meridian. [""] 9256.34 638.10 9406.88 480.45 739.68 35.31 186.30 8.74 633.69 68.57 it 1931.95 193.05 14989.93 1505.91 n 303.51 130.19 c p ± 1.998 1.543 ± 9.531 0.406 ± 9.846 ± 1.031 0.331 9.492 ± 1.978 1.599 ± 1.961 0.676 ± 1.619 1.000 ± 3.803 0.180 The propriety of the exclusion of the Kremsmiinster group is thus vindicated, and the weights thus obtained for the other groups are available for the next solution. The following slightly different weights, obtained from still another solution, were actually employed for the multi- plication : Bant. Equal. 1.539 Sant. Mcrid. 0.411 Sam. Merid., (luppl.) Waih. Equal. 0.308 2.52G Cape Mcrid. 1.614 Greenwich Merid. 0.685 PRELIMINARY SOLUTIONS. cclxxiii VEJTCS i. Normal Equations. Santiago equatorial. Santiago meridian. Washington equatorial. Greenwich meridian. Allona meridian. Total. [*•] 247.710 70.000 51.700 17.000 2.000 388.410 [•»] — 74.402 — 9.090 — 57.540 8.781 4.564 — 127.687 [«] 380.398 89.606 84.506 32.410 4.174 591.094 [«*] 272.519 33.098 ! — 94.753 — 38.509 — 3.974 168.375 [M] 950.347 224.002 211.264 81.024 10.434 1477.071 M — 140.582 — 22.218 — 135.640 18.684 9.561 — 270.195 M — 51.518 17.679 94.506 — 16.205 9.058 35.404 [«] 788.860 179.593 173.963 91.178 8.777 1242.371 M 361.893 34.705 — 142.839 — 59.662 — 8.273 185.803 k«1 320.140 19.258 177.887 94.306 7.905 619.496 M 20.200 216.648 — 73.580 13.778 — 2.500 174.546 [»n] —1353.330 —297.817 — 117.640 — 118.138 — 5.935 —1892.950 M 32.430 324.330 — 77.930 — 0.242 — 5.637 272.941 M 5.850 77.885 ! 145.100 — 53.780 4.833 179.888 [-»] 2649.000 1304.060 829.180 373.470 g.TIO 5161.480 The equations constructed from the coefficients in the column of sums furnish the annexed results : x = — 0".1408± 0".2667 y = -f F.3134 ± 0".0698 z = + 0".1904 ± 0".1439 W= — 0".3843 ± 0".1139 Santiago equatorial. Santiago meridian. Washington equatorial. Greenwich meridian. Altona meridian. Total. M 3649.00 H 1304.06 829.18 373.47 5.77 5161.48 [»».4] 1 P 781.76 ± 1.791 2.136 M.M ± 3.671 0.508 661.89 ± 3.725 0.494 283.13 ± 4.667 0.315 17.34 2633.50 ± 2.617 1.000 The Altona observations being but two in number, — while four unknown quantities are to be determined, — it is of course impracticable to deduce the measure of their precision from internal evidence. After some little examination, the most appropriate weight seemed to be unity, and they are consequently combined with the other results without modification. cclxxiv PKEUM1NARY SOLUTIONS. VKM > II. Normal Equations. Sauliago equatorial. Santiago meridian. Wubinftnn equatorial. Greenwich meridian. Cracow in. mlian. Total. [ ] 71.300 46.000 13.560 17.000 16.000 163.660 [•»] 59.197 91.787 —11.736 10.176 —19.343 60.081 w ••:. - 43.944 • • 16.798 18.034 198.913 M 114.468 93.561 —14.341 —96.939 —17.661 146.108 [**] 936.451 114.854 58.890 41.987 45.159 497.334 M 149.054 49.873 —15.577 95.943 —94.516 177.777 [*«] 83. IW 38.404 9.803 -13.974 17.973 136.388 M 191. 935 85 807 43.367 ..... 93.931 384.918 ['«] 131.967 77.707 —34.950 —19.179 —18.509 148.043 to] 181.739 199.948 15.369 45.186 90.333 454.867 [«] 956.780 158.404 10.890 43.771 13. BOO 489.645 M 671.680 330.917 91 .950 109.719 59.463 1*49.099 M 449.600 171.839 30.180 71.748 6.448 799.815 [*•] 394.990 329.959 —16.660 -«4.90I —94.859 618.596 [«.] 9463.501 1483.990 891.760 306.559 393.690 4868.793 After one solution, the weight of the Cracow group was seen to be of a different order from the weights of the other series, and the results of these Cracow observations were consequently excluded. Solving anew, the following values were deduced, fully justifying the rejection : x = — 2".6392 ± 0".3711 y = — 2".5401 =b 0".1265 z = + 0".7759 ± 0".2192 W = — 0".1066=b 0".1470 Santiago equatorial. flamingo in. mlian. Washington equatorial. Greenwich meridian. Total. Cracow meridian. M n 3463.50 1483.99 // 331.76 11 306.55 n 4556.88 393.63 [m.4] 457.10 HMI 56.59 46.30 808.59 358.54 P ±9.606 0.838 ±9.433 0.950 ±9.439 0.950 ± 1.887 1.578 ±9.371 1.000 ±4.649 0.961 The following weights, which differ but little from these, and resulted from u third solu- tion, were employed in the final multiplication. Santiago equatorial. Santiago mrridlnn. Washington equatorial. Greenwich meridian. 0.889 0.859 0.859 1.600 FINAL SOLUTION. cclxxv § 13 -FINAL SOLUTION. For the attainment of our ultimate results, nothing now remains but the reconstruction of the normal equations, by multiplying them severally by their weights as deduced in the last section, discarding those series which are clearly incapable of increasing the precision of the values sought, and summing the others thus multiplied. The solution of the resultant equations will afford the best values of the unknown quantities which we are entitled to expect. The present section contains the multiplied equations for each series, together with their solution and the information thence deduced. From the first series of .ifars-observations the Athens group is excluded, and the remainder furnish equations as follows : MARS I. Normal Equations multiplied by their weights. Santiago equatorial. Washington equatorial. Cape equatorial. Cape meridian. Greenwich equatorial. Greenwich meridian. Cambridge equatorial. Total. [«] *19,152 38.145 377.798 20.659 5. see 7.901 37.496 906.535 [«*] 106.163 — 37. S27 — 304.108 — 13.302 — 1.411 1.540 — 37.193 — 185.857 M 139.321 40.7CO 133 975 9.743 1.146 8.873 26.603 362 659 [«*] 680.333 — 14.735 393.420 29.039 — 4.413 — 4.801 — 23.708 1055.095 [»] 348.403 101.738 333.149 34.355 2.866 22.184 74.005 906.669 M 84.0-23 — 85.973 — 184.405 — 13.750 — 1.574 2.6!<3 — 60.164 — 259.160 [»«] 83.915 15.973 — 300.547_ — 19.730 1.576 0.294 25.628 — 192.891 M 69.313 90.376 193.308 9.781 1.045 19.382 50.537 363 635 M 170.108 — 16.363 189.914 13.83) — 1.168 — 4.855 — 19.836 331.636 M 901.325 . *.771 558.909 41.134 3.760 3.013 15.609 1529.530 [«»] 347.375 133.875 907.0116 58.820 — 0.287 — 4.859 109.598 1551.548 [6»]. — 076.444 — 350.454 — 997.000 — 76.349 — 4.437 — 4G.173 — 169.512 — 2520.369 [«] — 130.893 303.305 561.471 42.127 1.339 — 21.858 133.551 798.043 [*-] 638.239 — 55.157 1313.395 86.050 — 0.459 — 0.438 — 75.479 1905.141 [nn] 4001.950 843.310 3794.850 330.010 14.070 138.770 505.850 9619.810 We hence obtain = — 1".6688±0".0938 = + 2".8755±0".0378 = + l".5885±0".0805 = — 0".0762 db 0".0621 and, consequently, Santiago equatorial. Washington equatorial. Cape equatorial. Cape meridian. Greenwich equatorial. Greenwich meridian. Cambridge equatorial. Total. // it // ,i n „ // // [«»]. 1896.170 3074.590 2136.650 734.810 52.770 397.230 810.530 8102.750 P[»».4] 357.465 133.643 313.958 62.359 26.678 28.947 82.845 605.794 [n».4] 169.371 329.156 130.467 138.627 !00.049 87.9:i3 IK. 743 1078.348 c ± 0.837 ± 1-913 ± 0.88K ± 1.817 ± 2,485 ± 2.097 ± 1.539 ± 1.003 Weight 1.434 0.274 1.270 0.304 0.162 O.SW8 0.424 1.000 P> 2.107 0.403 1.866 0.447 0.239 0.335 0.653 — in which Pl denotes the weight, expressed in terms of the unit used for P. cclxxvi FINAL SOLCTIOH. From the second series of Jfara-observations the Kremsmiinster group is excluded, and we have — MARS II. Normal Equations multiplied by their weights. Santiago equatorial. Santiago meridian. Santiago meridian, Wa»hin(lon (supplementary.) equatorial. Cape meridian. Greenwich meridian. Total. M 589.168 39.499 UH 31.975 74.931 94.667 760.155 [•*] — 16.638 3.509 — 1.195 — 0.159 — 10.680 90.313 — 4.780 M 434.709 659.449 90.586 37.150 6.078 0.614 9.486 — 13 903 96.707 PS. 064 95.398 — 14.537 514.085 787.416 [•*] M M 1086.739 — 97.694 - 47.457 540.717 51.464 6.338 1.660 93.511 15.195 0.036 - 1.834 8.001 1.533 — 0.109 0.950 0.030 66.751 — 15.799 — 13.554 19.537 63.488 38.056 — 9.159 50.173 12*5.153 0.805 — 70.094 641.959 [<*] to! 459.808 744.397 377.138 91.788 49.846 0.795 6.374 10.909 3.322 — 0.273 5.596 43.451 30.699 107.148 47.088 — 13.354 8.717 — 57.350 498.149 919.603 414.374 [»•] — 3555.374 — 902.982 — 49.348 — O.S85 —951.960 —912.388 -43H.335 M — 81.886 584.565 — 9J.977 11.947 — 7.583 I.TH 0.935 — 18.416 44.113 62.569 —148.976 91.961 — 916.373 668.679 M 14946 960 989.916 938.046 64.444 1030.984 837.359 17387.699 These give us — z= — 1".6785 ± 0".1643 + 3".4050±0".0445 + 1". 6438 ±0". 0925 + 0".0427±0".1334 Snntiafo equatorial. Santiago meridian. Santiago meridian, (supplementary.) Washington equatorial. Cape meridian. Greenwich meridian. Total. R // ii „ n „ n [«»} 9258.240 9406.860 739.680 35.510 633.690 1921.950 14283. 939 P[»».4] 958.970 901.548 66.470 18.351 119.774 87.934 1443.037 [«••«] 693.041 490.040 183.164 7.964 74.923 198.329 1506.053 c ± 1.989 ± 9.556 ± 9.W9 ± 0.931 ± 1.329 ± 9.003 ± 1.578 Weight. 1.515 0.381 0.313 9.874 1.407 0.691 1.000 Pl 1.609 0.403 0.331 3.039 1.491 0.657 ~~ FINAL SOLUTION. For the first series of Fenws-observations the multiplication gives us the annexed coefficients VE.Vl'S I. Normal Equations multiplied by their weights. Santiago equatorial. Santiago Washington meridian. equatorial. Greenwich meridian. Altona meridian. Total. [aa] 529.033 36.587 25.525 6.347 3.000 597.492 w — 158.900 — 4.621 — 26.408 2.762 4.564 — 184.603 [acl 812.414 45,554 41.721 10.195 4.174 914.058 [«*] 582.018 16.823 — 46.760 — 12.113 — 3 974 535.974 [U] 20S9.652 113.879 104.303 25.487 _ 10, 434 3283.755 Eh] — 300.240 — 11.295 — 66.967 5.877 9.561 — 363.064 N — 110.027 8.988 46.658 — 5.097 — 9.058 — 68.536 [cc] 1684.765 91.303 85.887 28.681 8.777 1899.413 [erf 772.891 17.644 — 70.521 — 18.773 — 8.273 692.968 [«] 683.722 U.790 87.824 29 665 7.905 818.906 [an] 43.141 110.141 — 36.327 4.334 - 2.500 118.789 [in] —21-90.280 —151.457 — 58.080 — 37.181 — 5. 938 —3142.913 [«] 69.261 164.880 — 38.475 — 0.076 — S/.637 189.953 [jn] 12.494 39.596 71.637 — 16.917 4.833 111.643 [n»] 5657.456 662.965 409.373 117.478 5.770 6853.044 The corresponding values are — x = + 0".4007 ± 0".2407 y= + 1".4156± 0".0473 z= + 0"-1157 ± 0".1041 w = — 0".3780d= OM272 Santiago equatorial* Santiago meridian. Washington equatorial. Greenwich meridian. Altona meridian. Total. n // // it ,, // [tin] 3649.000 1304.060 829.180 373.470 5.770 5161.480 P[nn.4] 850.474 533.304 395.199 1 16*. 608 31.307 1885.890 [mi. 4] 398.919 1047.047 719.451 370.697 31.307 2566.721 c ± 1.278 ± 3.983 ± 3.884 ± 5.340 — ± 2.S15 Weight. 3.002 0.309 0.325 0.173 — 1.000 P' 4.193 0.432 0.454 0.240 — — cclxxviii FINAL SOLUTION. Lastly, the second Finttoscries furnishes, after exclusion of the Cracow group and combina- tion of the rest in the proportion of their weights, the following values for the coefficients, unknown quantities and residuals : n. Normal Equations multiplied by their weights, Santiago equatorial. BanliafO meridian. Wuhinfton equatorial. Greenwich meridian. Toul. ["] 63.363 38.539 11.663 37.304 141.748 [«*J 53.607 i- M — 10.085 16.384 77.538 I"] 84.054 39.481 90.341 •-•''..--I 170.6S7 l-l] ;•..•.., 79.i39 — 13.333 - 43.081 194.085 (MJ 310.131 98.690 50.605 67.189 436.631 M 198.841 49.857 — 13.386 41.515 197.337 [»(t] 74.196 33.001 8.434 — 31.341 W.382 M 170.570 73.735 36.406 05.430 348 141 M 118.166 68.775 — 31.440 —30.691 131.810 lul 161.509 165.303 13.301 :.'.'- 413.331 [am] 928.197 136.130 9.358 70.043 443.718 M sue. ma 283. 70S 79.013 164.393 1134.049 t«] 399.553 147.665 -. HI 114.813 687.96$ r«"] 351. 02* 383.540 — 14.316 —103.861 516.585 [~j 9189.378 1374.631 190 960 490.561 4145.011 X = — 2".4926 ± 0".3149 y = — 2".4760 db 0".1234 Z = — O^TlGOi 0".2040 W = — 0".1661 dc 0".1246 Snmiago Samiago equiM'irt.Tl. meridian. Washington equatorial. Greenwich merlillan. Total. » /' 11 it n [~] 84(3.501 14*3.990 931.760 306.559 •4475.103 P[~A] 343.537 316.460 48.743 54.839 663.569 [.-.4] 385.431 351 .897 56.733 34.370 738.331 • ± 3.393 ± 3.449 ± 3.436 ± 1.834 ± 9.146 Wight. tMt 0.768 0.776 1.747 l.OUO P' 0.888 0.848 0.857 ].:•" ~~ DIAMETERS. CclxxJX § 14.-DIAMETERS. The values of the semidiameters of Mars and Venus at the unit' of distance, which have been assumed in the foregoing computations are as already stated in § 4. Mars, t = 4."6639 ; (OUDEMANS, Astr. Nadir. XXXV, 351.) Venus, f = 8."6625 ; (WICHMANN, Astr. Nnchr. XXXII, 74.) Both these determinations are free from any error due to the thickness of the micrometer- threads, being derived from heliometer-observations. That for Mars was derived from a careful discussion of the measurements of Bessel from 1830 to 1837, published in the XXIII. part of the Konigsberg observations. The observations, having been made under a great variety of circumstances, and at greatly different distances, seemed well adapted for avoiding the influence of any constant of irradiation upon the result, and for detecting its amount. Prof. Oudemans found it impossible to bring the ellipsoidal form of the planet into the investigation, and the deduced value rests, therefore, upon the hypothesis of sphericity. Assuming a constant error in the measured diameter, and introducing this as an unknown quantity into the equations of condition, he found this error (which has been denoted by u in the present discussion) to be — 0".0267 ; and thence inferred both that no such influence of irradiation had affected the observations, and that no other essential constant error existed in them. The probable error of the semidiameter came out as less than one hundredth part of a second, or only one half as much as if the supposed irradiation had been ignored ; that of the deduced constant error was about one-third greater than its whole amount. The probable error of a single setting was 0."2975. The adopted value for the semidiameter of Venus was deduced by Prof. Wichmann from his own measurements, which had been also made with the Konigsberg Heliometer. Trie circum- stances under which he observed were quite various, although the greater portion of the measurements were included within a period of two months. Some of the observations were made in broad daylight, some in the twilight, others still by night ; and the conditions were yet further varied by the employment of different magnifying powers, and sometimes of shade- glasses. Out of the eleven groups of comparisons the discordance of the extremes was but O."51 for the entire diameter, and the resultant mean, derived from sixty-four settings, appears entitled to much weight. No decided influence of irradiation was detected. In the Astronomical Journal III, 9, Prof. Peirce gives the results of a discussion of the semidi- ameters of Mars and Venus from the published observations with the Mural Circle of the Naval Observatory at Washington, in 1845 and 1846. His especial motive in the computation was to investigate the probability of the existence of any constant and spurious enlargement of the apparent disc, in consequence either of irradiation or of any other cause. He arrived at the curious inference that the constant quantity t was essentially the same for each of the two planets. His figures are as follows, J? denoting the correction to the value in the Nautical Almanac. For Mars, t = 0."596 ± O."167 4? = O."0375 ± O."0086 For Venus, t = 0."554 ± O."107 J; = O."1397 ± O."0257 CC. XXX DIAMETERS. Assuming the value of t to be identical for the two planets, and combining the results with regard to their probable errors, Professor Peirce obtained the final determinations : t = 0."665 ± O."121 f = 5."055 ± O."101 for Mara ! = 8."546 ± O."086 for Venua The discordance between these results and those deduced from Konigsberg observations cannot fail to attract attention. I had hoped that the large number of observations now under discussion would throw much light upon the source of these discordances, and did not consider it permissible, under the circumstances, to omit terms containing the two unknown quantities t and u from the equations of condition. One of these, t — i, + , depends upon such influences as are peculiar to the observer and the instrument, comprising such portion of the irradiation as is constant, as also the personal error of the observer in setting, and any error in the assumed thickness of the threads. The other, u = b( + *«> is simply the correction to the assumed semidiameter, and consists of the correction proper, together with such irradiation as may be practically inseparable from it when illuminated limbs are observed, or that which varies with the amount of light. These two terms are not strictly merged, the influence of one varying inversely with the distance from the earth, and that of the other being dependent on the brightness, and consequently on the radius-vector also. But in the entire absence of any proba- bility of trustworthy results should these be separated, both were brought into one term, having a coefficient inversely proportional to the distance from the earth. The earliest tentative solutions, in which these quantities were placed on the same footing with the others, suggested grave doubts as to the practicability of deducing satisfactory results even for t and u. It has been seen that in the subsequent solutions these doubts were too well confirmed ; so that it became necessary both to ignore one of the terms, by assuming one unknown, quantity as inappreciable, and then to call the measured semidiameters to our aid for freeing the fundamental equations from the influence of the other one. For various reasons it appeared advisable to discard u rather than t, especially, since the variety of instruments and observers seemed to offer more opportunities for the elimination of the latter than the compara- tively small variation in the distance during the period comprised by any one of the four planet-series permits for the former. The deduction of any satisfactory values of the semidiameters from the Fundamental Equations being entirely abandoned, our only remaining reliance must be upon what were called in § 11 " Additional Equations," i.e., those derived from actual measurement of the diameters ; these measurements having been in a few cases direct, and in the others affected by the motion of the planet and by changes of parallax and refraction. But here, also, as has been already stated, the attempt to separate the two unknown quantities was unavailing ; and the only course is, here upon a small scale as in the whole investigation upon a larger one, to deduce from the materials before us such results as they are competent to furnish, and therewith to be for the present content. DIAMETERS. cclxxxi The equations are these : Equations from measurement of diameters. I'laii'-t s.-ries and Instrument. [dft] [*.] [<**.] [ee.] [en.] [mi.] Mars I. — Santiago equatorial . . * 211.460 3-24.364 — 469.397 503.332 — 717.614 1095.428 Washington equatorial 76.990 120.313 — 248. S93 189.217 — 388.831 976.024 Cape of Good Hope equatorial 103.150 170.780 20.102 283.620 31.715 47.116 Cambridge equatorial . . . Si! 780 35.167 — 15.780 56.844 — 25.840 20.020 Mars II.— Santiago equatorial . . . 313.630 427.593 — 310.360 588.809 — 428.790 351.765 Santiago meridian-circle . . 4.000 5.908 — 3.070 8.720 - 4.564 2.696 Washington equatorial . . 17.220 25.736 — 42.817 38.463 — 63.981 107.066 Venus I. — Santiago equatorial . . . 13.480 24.601 — 14.176 44.923 — 25.824 15.725 Santiago equatorial (direct) . 41.680 94.203 — 20.099 224.107 — 42.479 20.654 Santiago meridian 'Circle . . 35.000 92.619 18.125 260.040 47.560 18.513 Washington equatorial . . 39.910 95.671 — 45.889 . 233.684 — 105.478 87. 5£6 Venus II. — Santiago equatorial . . . 64.700 149.230 — 48.898 355.388 — 109.911 110.211 Santiago equatorial (direct) . 25.960 71.843 — 25.463 202.954 — 71.887 30.287 Santiago meridian-circle . . 45. 000 116.313 12.905 313.751 45.095 41.957 Washington equatorial . . 18.200 37.113 — 28.813 76.065 — 60.112 51.802 The solution of these equations gives the results exhibited, in the table below, chiefly as a matter of curiosity and interest. It proves the attempt to separate the quantities t and u to be, at least in the present case, altogether futile. The two last columns give the resultant value of t upon the supposition u = 0, and that of u if t be ignored. Solution of equations derived from measurement of diameters. Series. Instrument. N°. of obi. n [rm] [nn .2] t Mean error. U Mean error. (U=o) t (t-o) U MarsI . . Santiago equatorial .... 55 311 1095.428 53.465 +2.8580 ±0.3211 —0.4162 ±0.2082 +2.2198 +1.4257 Washington equatorial . . . 21 77 976.024 172.666 +2.9694 ±2.1655 +0.1650 ±1.3817 +3.2302 +2.0549 41 103 47.116 40.373 —3.1804 ±1.1239 +1.8032 ±0.6777 — 0.1949 —0.1118 Cambridge equatorial . . . 1 as 20.030 6.496 —8.5833 ±3.6990 +5.8226 ±2.3014 +0.7245 +0.4546 Hare II . . Santiago equatorial .... 80 314 351.765 39.165 —0.3311 ±0.2013 +0.9688 ±0.1469 +0.9896 +0.7382 Washington equatorial . . . 5 17 107.066 0.831 —28.8881 ±15.5795 +20.9928 ±10.2977 +2.4865 +1.6634 Santiago meridian-circle . . 4 4 2.696 0.115 —9.5000 ±5.5340 +7.5000 ±3.9131 +0.7875 +0.5238 Han I k II Santiago equatorial .... 135 535 1447.188 331.380 —1.3017 ±0.2454 +1.9459 ±0.1702 +1.4850 +1.0497 Washington equatorial . . . 26 94 1083.090 160.444 +1.9924 ±1.9288 +0.7097 ±1.2408 +3.0943 +1.9888 Venus I . . Santiago equatorial .... 3 13 15.725 0.734 +4.2500 ±2.8271 —1.8077 ±1.5682 +1.0516 +0.5748 Santiago equatorial (direct.) . 11 43 30.654 10.186 +1.0773 ±0.3511 —0.2634 ±0.1514 +0.4822 +0.1895 Santiago equatorial (all) . . U 55 36.379 12.788 +1.5252 ±0.2984 —0.4197 ±0.1351 +0.6214 +0.2539 Washington equatorial . . . 14 40 87.586 30.10T, +3.6469 ±1.0345 —1.0419 ±0.4276 +1.1498 +0.4514 Santiago meridian-circle . . 35 35 18.513 9.116 —0.5890 ±0.3705 +0.0270 ±0.1380 —0.5179 —0.1829 Venui n . Santiago equatorial .... 36 65 110.311 64.546 +2.7909 ±0.7109 —0.8822 ±0.3033 +0.7558 +0.2898 Santiago equatorial (direct.) . 8 36 30.287 4.824 +0.0302 ±0.6169 +0.3434 ±0.231)7 +0.9809 +0.3542 Santiago equatorial (all) . . 34 91 140.498 77.292 +1.6473 ±0.5280 —0.3391 ±0.2128 +0.8202 +0.3131 Washington equatorial . . . 6 18 51.802 1.404 —5.6087 ±0.9704 +3.5247 ±0.4744 +1.5831 +0.7903 Santiago meridian-circle . . 45 45 41.957 26.752 +2.2487 ±0.6012 —0.9809 ±0.2281 —0.2868 —0.1442 Venus I fc II Santiago equatorial .... 48 148 176.877 93. 040 +1.4144 ±0.3230 —0.2873 ±0. 1356 +0.7450 +0.2933 Washington equatorial . . . 20 58 139.388 39.240 +3.1280 ±0.7672 —0.8087 ±0.3324 +1.2855 +0.5346 Santiago meridian-circle . . 80 80 60.470 43.443 +0.7357 ±0.3845 —0.4301 ±0.1437 —0.3879 — X1618 Z° 12 DIAMETERS. The equations deduced from measurement with the Santiago instruments may be slightly improved by introducing the new-found values of v- The original equations of condition derived from direct measurements were of the form 0 = n + dt + en when ft represents the excess of the computed above the measured semi-diameters, The numerical value of the quantity £ ( 8t — 5,) is to be increased (since the value of v is in both cases positive) by the amount inasmuch as we may, without perceptible error, substitute for Am the computed semi-diameter. The numerical correction having the same sign as the measured semi-diameter, it is clear that the correction to be applied to n is negative, so that the corrected value will be •grt - I1 < . and we find [n'n'] = [nn] — 2 [en] . ^ -f [ee]. (/. . . . ... — 3.52 Variation of declination in 3m. 18s. . — 0.30 Observed P. F. diameter .... . . . 17.06 Corr. for diam. of niicr. wires — 2.20 Observed N. S. diameter . . . . 15.88 h. in. H h. in. // A 0 at 6 5 . 0.03 A 0 at 6 8 . 0.01 DECEMBER 11, 18419. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Tllernmini-t^rs. A. B. C. U. E. A a. A A Air. XV et. s. .. 0. B. B. h. m. s. Rev. B. Rev. Inches. • e 1 Mars . . . 8.P. 37.0 51.0 4.0 17.5 30.0 3 56 3.90 +9.47 28.068 70.3 58.5 2 Rumker . . 1680 45.5 58.5 11.5 25.2 37.7 3 56 11.68 ±0.00 —7.78 +9.47 3a 4 II Mara . . . S.F. Rumker . . 1680 Mars . . N.P. 20.0 96.7 48.5 40.0 2.5 46.5 53.0 15.5 59.5 6.7 29.0 13.5 19.5 4-2.0 3 58 46.27 3 58 53.18 4 1 15.50 +9.49 ±0.00 +8.16 6.91 9.49 Tiler, att 70°. 3 Bar. red. i.i :',! i'. 27.954 6 Ruinker . . 1680 55.5 22.5 36.0 49.0 4 1 22.47 ±0.00 6.97 8.16 7 Mara . . , S.P. 21.5 34.5 48.0 1.0 4 5 34.65 +9.40 8 Rumker . . 1680 30.0 43.0 57.0 9.5 4 5 43.27 ±0.00 8.62 9.40 9 Marc . . . N.P. 43.0 22.5 35.5 4 8 9.30 +8.36 H Rumker . . 1680 51.5 5.0 18.7 31.5 44.5 4 8 18.24 ±0.00 8.94 8.36 11 Mars . . . S.P. 52.0 6.0 18.5 4 11 52.31 +9.34 12 Rumker . . 1680 35.0 48.5 15 15.0 27.7 4 12 1.54 ±0.00 —ti.33 +9.34 OPPOSITION OF MARS, 1849-50, HI < i: Mil BJt 11. 1849— Cant Mill. ll. I ter 1 1 in. ofiran»i L Micr Planei- -Bur. Bar. : .. n 1 OHM. A. B. C. D. A.. Ad. Air. Wet. to m X II. Mil i , t & KCV. •ev. i , . 13. Man . . . N.P. 0.0 t 96.5 39.5 t t 4 19 96.33 t 7U.3 58.5 14 Ranker . . 1680 . M.O . 48.0 . , 4 19 34.88 . —8.55 . . Ther. an. Mara 8 P 37 7 4 98 4 13 16 Ranker . . 1680 1.0 . . . . . . 4 98 14. M . . 10.03 . . Bar 'red. M • 1 - 97.951 17 Mara . . . N.P. 33.5 . . 59.5 . . 95.5 4 9959.59 -- • 18 Ranker . . 1680 • • 560 • • 93.0 • • 4 30 9.38 ±0.00 9.79 +8.49 19 Man . . . B.P. 41.5 . , 7.5 . t 33.0 439 7.49 +9.37 90 Runker . . 1680 4.0 30.0 4 39 16.88 ±0.00 9.46 9.37 91 Mara . . . NP. 18.7 45.0 St>.0 4 34 44.90 +8.30 U Ruuiker . . 1680 • • 49.5 • • 8.5 • • 4 34 55.36 ±0.00 10.48 8.30 93c Man . . . 8.F. 90.0 . . 46.0 . 19.0 4 44 46.09 +9.30 94 Ranker . . 1680 • • 43.0 • • 9.5 • • 4 44 56.13 ±0.10 10.04 9.30 95 Man . . . N.P. 51.0 • f 1H.O , 43.0 4 47 17.42 +8.10 96 Ranker . . 1680 • • 15.5 49.0 • • 4 47 98.63 ±0.00 11.91 8.10 17 Mara . . . P.P. 97.0 . . 53.9 . . 19.5 4 49 53.33 +8.30 98 Ruuiker . . 1680 • • 51.0 • • 17.5 - • 4 SO 4.13 ±0.00 10.81 8.30 99 Mara . . . N.P. 40.9 . t 7.0 , , 33.0 4 59 6.89 +8.04 30 Runker . . 1680 • • 5.5 • • 39.0 • • 4 59 18.63 ±0.00 11.81 8.04 31 Man . . . 8.P. 94.5 r f 50.5 t l 16.5 4 54 50.59 -9.19 31 Rumker . . 1680 • • 48.7 • • 15.0 455 1.73 ±0.00 11.14 9.19 33 Man . . . N.P. 10.3 . . 35.6 . . 4 57 36.15 ±0.00 34 Runker . . 1680 • • 35.0 • • 1.5 • • 4 57 48.13 -7.99 11.98 7.99 354 Mara . . . 8.P. 34.0 , 0.3 . . 95.5 5 0 0.09 ±0.00 36 Ranker . . 1680 • • 58.5 94.5 • • 5 0 11.38 —9.16 11.36 9.16 37 Mara . N.P 45.5 5411 .93 4-7 98 38 Ranker . . 1680 11.5 • • 38.5 • • 5 494.88 ~* •*" ±0.00 19.95 7.98 39 Mara . . . B.P. 6.5 . . . . 59.0 5 7 31.89 +9.08 40 Runker . . 1680 • • • • 45.3 • • • • 5 745.97 ±0.00 19.38 9.06 41 Mara . . . N.P. 66.7 , f , f 49.0 5 999.99 +7.96 Rumker . . 1680 36.5 5 9 36.47 ±0.00 13.48 7.96 43 Mara . . . 8.P. 36.0 99 5 5 11 9.89 +8.99 44 Ranker . . 1680 • • • • 15.5 • • • • 5 11 15.47 ±•.00 19.58 8.99 454 Man . . . N.P. 5.0 57.5 5 19 31.39 +7.94 45 Kunki-r . . 1680 44.5 5 19 44.47 -1-0.00 13.06 7.94 474 Mara . . . 8.P. 58.9 50.9 5 14 94.34 _J_W.WW +9.08 48 Rumker . . 1680 • • • • 36.7 • • 5 14 36.67 ±0.00 19.33 9.08 49 Mara . . . N.P. 39.0 . 14.7 5 16 58.49 +7.94 M Ranker . . 1680 • • 19.5 • • • • 5 17 12.47 tM 13.98 7.94 SI Mara . . . B.P. 95.7 , t t t t 17.5 5 18 51.74 +8.97 91 Ranker . . 1680 • • • • 4.3 • • 5 19 4.97 ±0.00 19.53 8.97 53 Man . . . N.P. 13.7 . . 40.5 6.5 5 59 40.39 +7.80 M Ranker . . 1680 • • • • 57.0 • • • • 5 53 56.97 ±0.00 16.65 7.80 55 Mara . . . B.P. 49.0 . . 16.0 , 41.7 6 55 15.66 +8.73 56 Ranker . . 1680 • • • • 11.5 • • • • 555 31.47 ±0.00 15.81 8.73 57 Man . . . N.P. 91.0 . . 48.0 . 14.9 5 57 47.89 +7.71 58 Ranker . . 1680 • • 5.9 • • • • 658 4.97 ±0.00 —17.15 +7.71 AT SANTIAGO DE CHILE. DECEMBER 11, 1849— Continued. Nn. for reference. Object. Chronometer lime of transit. Mean of wires. Micr. Planet— Star. Bar. TlH-rmometers. A. B. C. D. £. A a. A ,5. Air. Wet. @. s. s. 45.3 B. s. . ll. Ill S. Rev. s. Rev. [lli-lirs. • • 59 Mars . . . S.F. 19.0 11.5 5 59 45.36 +8.87 28.068 70.3 58.5 60 Rumker . . 1680 1.3 6 0 1.27 ±0.00 -15.91 +8.87 K 62 63 Mars . . . N.P. Rumker . . 1660 Man . . . S.F. 59.5 30.5 • • 26.3 43.3 57.2 • ' 52.0 23.0 6 2 26.02 6 2 43.27 6 4 56.99 +7.71 ±0.00 +8.76 17.25 7.71 Ther. att. 70°. 3 Bur. red. to :«• F. 27.934 64 Rumker . . 1680 • • • • 13.5 • • 6 5 13.47 ±0.00 16.48 8.76 65 Mara . . . N.P. 38.2 . . 5.0 . . 30.5 6 7 4.65 +7.69 66 Rumker . . 1680 22.7 • • 6 7 22.67 ±0.00 18.02 7.69 67 Mara . . . S.F. 2.5 39.5 . 56.0 6 9 39. 42 +8.80 68 Rumker . . 1680 • • 46.0 • • 6 9 45.97 ±0.00 J6.55 8.80 69 Mara . . . N.P. 35.0 1.5 . . 27.0 6 12 1.25 +7.79 70 Kumker . . 1680 • • 19.2 6 13 19.17 ±0.00 —17.93 +7.79 Bemarkg. Observationa not very good, Mara being very unsteady. No. 168<», Rumker, w.is observed throughout the evening by mistake, a Not incorporated into the meaiu. 6 Recorded 47 .St. at wire A. cMars unsteady. rfGood observation. Results. Mean 8. P. . . Three transit* Mean N.P. . . Two tiaiiMl- . . Mean N.P. . . Nine transits . . Mean f*. F. . . Nine transit* . . Mean N.P. . . Five transiu . . Mean 8. F. . . Four transits . . h. m. Correction for chronometer at 4 4 Santiago Bid. time 8. P h. m. s. ..44 30.29 ..44 42.40 . . 4 56 18.85 . . 4 59 16.59 . . 6 224.01 . . 6 231.88 b. m. s. . + 4.80 4 4 35 09 4 4 47 20 12.11 h. m. Correction for chronometer at 4 56 . C"rr1||I. If I » 1 S 1 < 1 i Cbronouctri time of trau.it. %|ABH l^f ' \l I'lnni'l— Star. !*_*. " Ofcj«Cl. A. n. c. i). K. M &€. A i. Air. f. ft, a. ft, •• fa. III. 1. Rer. 01. ». Rer. locbea. • i Man . . . N.P. 43.0 56.9 9.0 | 99.5 35.9 338 9.18 +9.39 •- M 79.9 S6.6 9 Kuu.k.r . . 1680 . . 47.* O.I) 13.5 96.5 3 40 0. 15 4.55 —1 50.97 —9.16 Tl er. all 3 Man . . . S.F. 97.7 41.0 54.0 7.5 90.0 3 41 54.04 0.94 71'. 0 4 Ranker . . 1680 30.7 43.5 S7.9 10.0 3 43 43.75 4.93 1 49.71 3.99 I'.ar. M-d. II . 1 | | 97. WO 5 Man . . . N.P. 11.0 94.0 37.0 50.1 3.0 3 45 37.04 ; 1 a Rumker . . 1680 9.0 14.7 98.0 • 64:5 3 47 98 94 ' 4.90 1 51.90 9.38 7 Man . . . 8.F. 48.0 1.7 14.5 97 5 40.9 3 49 14.38 0.53 8 Rumker . . 1680 38.9 51.5 4.7 18.0 30.7 3 51 4.69 4.03 1 50.94 3.50 9 Man . . . N.P. 54.7 8.0 91.0 34.5 47.5 3 5391.14 1.44 10 Kumker . . 1680 1.0 13.7 97.5 39.7 3 55 13.87 3.69 1 59.73 9.95 lla MI-IK . . . 8.P. 55.5 8.5 99.0 31.5 4 3 8.59 9.71 19 1 Rumker . . 16(0 • • 47.5 P.5 14.5 97.5 4 5 0.90 +4.95 1 59.38 1.54 ll« Man . . . 8.F. 43.0 57.9 10.9 94.0 36.8 4 8 10. -Jt -1.33 14 i Rumker . . 1680 56.0 9.5 93.9 36.3 4 10 9.65 4.04 1 59.41 9.71 li. Man . . . N P. 33.3 46.5 59.7 13.3 95.7 4 15 59.70 9.07 16 Kumker . . 1680 ».* 59.5 5.7 90.0 4 17 59.89 4.56 1 53.19 9.49 17. Man . . . S.F. 39.0 45.5 58.5 1-J.O 94.5 4 19 58.50 0.40 Kumker . . 16PO 37.5 50.5 4.0 17.5 4 91 50.77 3.17 1 59.97 9.77 19 a Mure . . . N.P. 17.5 30 5 43.5 57.0 9.8 4 94 43.66 1.98 90 Kumker . . 1680 • • 94.5 37.5 51.5 4.5 4 9637.90 3.05 1 54.94 1.77 91. Man . . . 8.F. 9.0 99.0 35.0 48.0 1.5 49835.10 0.00 Rumkrr . . 1680 • • 15.0 98.9 49.0 54.5 4 3098.39 9.67 1 53.93 9.87 3< Man . . . N.P. 49.5 55.5 8.5 91.5 34.5 4 33 8.50 0.83 94 Rnmkfr . . 1680 • • 50.5 3.5 16.8 4 35 3.51 9.49 1 55.01 1.59 95 o Man . . . 8.P. 43.0 56.0 10.0 94.0 37.4 4 37 10.08 0.08 98 c Rumker . . 1680 50.5 4.0 17.5 30.5 439 4.09 9.94 1 53.94 3.39 974 Man . . . N.P. 96.5 40.5 53.0 6.5 . 4 41 53.99 0.90 98 Rumker . . 1680 Mar. . . . N.P. 19.5 39.5 45.5 59.0 19.8 45345.96 9.86 30 Rumkrr . . 1680 . , 99.9 49.0 55.7 8.5 45549.9S 4.81 1 56.99 1.95 31 Man . . . 8. P. 57.7 11. • 93.7 37.5 50.0 4 57 93.98 1.49 39 Rumkrr . . 1680 • • 6.5 19.9 39.7 45.5 4 59 19.37 4.45 -1 55.39 -9.96 33 Man . . . N.P. 55.0 8.0 90.7 34.9 47.9 5 1 91.09 —9.97 34 Rumker . . I6t» Remark*. a Oli«!rvaUon« hy I.irniriiant MarRae. i Omitted In Hie renultn. t Not a good obaervntmn. d I 'liable to perceive mar. Result.^. ii. in -. m. 0. K.v. M. an X.I'. . . Thr«T Iran n. . . . 3 4.'i : — 1 51.633 . . . . -9.983 . . . . =041.10 M. in S. V. . . Two ti. ill-it. . . . 3 45 :».•» 1 49.975 . . 3.38.-I 1 6.17 Mean N. P. . . Four Inuifll* . . . 4 :il 54.98 1 M.840 . . . . l.ilflO . . . 0 38 00 M.-an .- I . Four trmiMlt . . . 4 35 46.91 — 1 53.705 . . . . — 9.HKO . . . . =056.08 h. in. a. 1. in. a. CortrcU"ii fm rhonooiel'T at 3 46 . . . . +a.(u ( '(.rfriitui i.tr .-liroiHiiurliT at ! . . +1.94 c»ir»>i-li(in hir ••hriiiiomrtcr at 4 36 . . . . +1.93 AT SANTIAGO DE CHILE. DECEMBER 13, 1849— Continued.- Results — Continued. ll. 111. F. 3 45 44 48 li. m. s. 4 31 56 22 3 45 36 91 . . 4 35 48 84 8 34 3 52 62 A P. F. limbs in A. R. reduced to arc , . 24.87 A N. S. limbs micr. in rev. . . . . 1.132 = 22.06 Variation of A. R. in 8t . . . — 0.14 Variation of declination in 8s. . . . 0.00 Observed P. F. diameter .... . . . 24.73 Corr. for diani. of micr. wire . — 2.20 Observed N. S. diameter .... .86 H // A P F. limbs in A. R. reduced to arc . . . 17.02 A N. S. limbs micr. in rev. . . . . 1.030 = 20.07 Variation of A. R. in 3m. 52« . . . Obierved P. F. diameter .... h. in. A f at 3 48 . . . + 4.20 . . . 21.22 . . . . 0.06 Variation of declination m 3m. 52s . Corr. for diam. of mier. wire . . . + 0.31 — 2.20 18.18 h.ni. Ac.it:'!'' // .... 0.09 A o at 4 33 . 0.04 A o at 4 37 . 0.07 DECEMBER 13, 1840. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. O. D. E. An. A A Air. Wet. b. m. s. Rev. m. e. Rev. Inches. • « * 1 Man . . . N.P. 47.0 0.5 13 3 96.7 4 8 13.49 +3.29 28.050 70.0 57.2 9 Rumker . . 1680 95.0 38.3 52.0 5.0 18.0 4 11 51.66 ±0.00 -3 38.24 +3.29 3a 4 5 Man . . . 8.F. Rumker . . 1680 M.ire . . . N.P. 0.5 38.0 43.5 14.0 51.2 S7.0 97.9 4.S 10.0 40.5 17.5 93.5 53.5 30.5 36.0 4 14 27.14 4 18 4.34 4 90 10.00 +3.30 0.92 4.83 3 37.20 2.38 Tlier. att. 7r.e Bar. red. to 32° F. 27.934 c Rumker . . 1680 22.5 35.5 49.0 2.5 14.7 4 23 48.84 1.39 3 38.64 Ml 7a Mara . . . 8.F. 12.2 95.5 38.3 59.0 4.7 4 25 38.54 3.40 8 Rumker . . 1680 50.3 3.3 16.7 30.0 49.5 4 29 16.56 0.97 338.02 9.43 9 Mara . . . N.P. 34.0 47.0 0.0 13.5 96.5 4 31 0.20 3.86 10 Rumker . . 1680 13.S 96.5 39.7 53.3 16.0 4 34 39.78 0.30 3 39.58 3.56 11 Mara . . . 8 F. 0.7 14.0 37.0 40.5 53.0 4 36 97.04 3.76 13 Rumker . . 1680 40.0 53.5 6.S 20.0 39.7 4 40 6 54 1.56 339.50 9.20 13 Mare . . . N.P. 34.5 48.0 1.0 14.5 97.9 442 1.01 +3.37 M Kuuiker . . 1680 15.0 98.2 41. f. 55.0 7.5 4 45 41.44 —0.16 340.40 3.53 IS Mara . . . 8.F. 47.7 1.0 14.0 97.5 40.5 4 48 14.14 +4.35 16 Rumker . . 1680 27.5 40.3 53.7 7.2 90.0 4 51 53.74 1.68 3 39.60 2.57 17 Mare . . . N.P. 33.0 46.5 59.5 19.9 95.5 4 53 59.44 5.06 IS Rumker . . 1680 14.5 97.7 41.0 54.0 7.2 4 57 40.88 1.45 3 41.44 3.61 19 Man . . . 8.F. 52.0 5.0 18.3 31.5 :i ., 4 59 18.23 3.59 90 Rumker . . 1680 32. 5 45.5 59.0 12.3 95.0 S 258.86 1.01 3 40.60 2.51 91 Mare . . . N.P. 12.3 25.5 38.5 52.0 4.7 5 4 38,60 4.05 22 Rumker . . 1680 54.5 7.7 21.0 34.0 47.0 5 8 20.90 0.45 3 42.30 3.60 33 Man . . . 8.F. 36.0 49.5 2.5 16.0 28.7 5 10 2.54 4.31 34 Rumker . . 1680 17.7 30.7 44.0 57.3 10.3 5 13 44.00 1.70 3 41 .46 2.61 as Mare . . . N.P. 7.5 90.5 33.7 47.0 0.0 5 15 33.74 4.79 98 Rumker . . 1680 50. 4 3.7 17.0 30.5 43.3 5 19 17.00 1.12 3 43.26 3.67 97 Man . . . 8.F. 39.7 S3.0 6.3 19.5 32.3 :. 21 6.16 3.95 98 Rumker . . 16HO 92.0 05.2 48.3 2.0 14.7 5 94 48.49 +0.64 -3 42.96 +2.lil 8 OPPOSITION OF MARS, 1849-50, OKI-EMBER 13. IMS-Continued. No. foe nfwrae*. Obj«*. Chronometer Urn* of tranatt. Wennofwin* Mler. Planei-8lar. Bar. 'lii'tiii'mieterB. A. B. C. D. E. An. A i. Air. Wei. a. a. i. a. a, li. i". •• Rev. m. a. Rev. Incbn. • • 89 Man . . . N P. 139 95.5 3S.5 59.0 5.0 5 36 38.61 +5.58 IMM 70.0 57.2 30 Rumker . . 16*0 56.9 9.5 99.7 36.0 49.0 53099.68 1.90 —344.04 +3.68 31 • 33 Mara . . . B.F. Rumker . . 1680 Mara . . . N P. 9.5 45.7 95.5 15.5 59.0 39.0 99.0 19.0 59.0 49.3 Si. 7 5.5 55.0 38.3 18.0 5 3398.86 5 37 ia.il 5 40 5Z.OO 8.99 6.38 8.85 343.38 9.71 Thir. all. 71-.0 Bar. red. U>39 I . 34 Ruiiiktr . . 1680 11.0 M.9 37.5 50.7 3.5 5 44 37.38 5.03 345.38 3.83 35 Mara . . . 8.F. 98.0 41.0 54.3 8.0 30.5 5 47 54.36 7.49 3» Rumker . . 1680 12.5 95.7 38.7 .V.VJ 5.0 5 51 38. S3 4.65 3 44.46 9.84 37 Mara . . . N.P. 59.5 6.0 18.7 31.7 44.5 5 58 18. G8 9.04 SB Rumker . . 1680 38.* 51.5 5.0 18.5 31.3 6 2 4.88 9.94 3 46.30 3.80 39 Mara . . . 8.F. 11.5 95.0 S8.0 , 51.0 4.0 6 4 37.90 7.65 40 Rumker . . 1680 57.0 10.5 93.5 37.0 49.7 6 833.54 4.88 345.61 9.77 41 Mara . . . N.P. 3S.5 48.5 1.7 15.9 98.3 6 11 1.89 9 07 4S Rumker . . 1680 23.9 36.3 49.7 3.0 15.5 6 14 49.54 5.38 3 47.73 3.79 43 Mm . . . 8.P. 3.0 16.0 99.3 49.5 55.9 6 17 29.90 8.13 44 Rumker . . 1680 49.5 a. 7 15.7 39.9 43.0 6 31 15 83 5.35 346.63 9.87 45 Mara . . . N.P. 15.5 99.0 49.0 55.5 8.9 6 23 43.04 9.28 • Rumker . . 1680 4.0 17.3 30.5 44.0 56.7 6 97 30.50 5.33 3 48.46 3.95 47 Mara . . . B.F. 18.0 31.5 44.9 58.0 10.5 6 30 44.44 7.91 48 Rumker . . 1660 5.7 19.0 32.7 46.0 58.7 6 34 33.43 5.09 3 47.98 9.83 •1 SO Mara . . . N.P. Rumker . . _ 1680 91.5 9.9 34.3 33.0 47.9 36.0 0.0 49.0 13.0 3.0 6 36 47.30 6 40 35.84 8.34 4.33 3 48.64 4.09 111 Mara . . . 8.F. 40.0 59.0 4.5 17.5 30.3 6 43 4.86 7.30 59 Rumker . . 1680 94.5 • • 50.5 4.0 17.5 6 45 50.84 4.39 3 45.98 9.91 S3* Mare . . . N.P. 30.5 44.0 57.0 10.5 33.0 6 47 57.00 7.70 54 Rumker . . 1680 90.8 34.0 47.0 0.5 13 5 6 51 47.16 3.65 350.16 4.05 sst Mara . . . P.P. 97.5 41.3 54.3 7.5 90.9 6 53 54.13 6.19 • Rumker . . 1680 17.0 30.5 43.5 57.0 9.5 6 57 43.50 3.17 3 49.38 3.09 574 Mara . . . N.P. 54.0 7.3 90.5 33.5 46.5 7 0 90 34 6.61 SB Rumker . . 1680 45.0 58.5 11.5 35.0 37.5 7 4 11.50 9.58 351.16 4.03 set Mara . . . 8.P. 8.9 91.5 34.5 47.5 0.5 7 6 34.44 4.89 60 Rumker . . 1680 58.0 11.0 34.5 38.0 50.5 7 1024.40 1.78 3 49.96 3.11 HI Mara . . . N.P. 35.8 48.5 1.8 15.9 98.9 7 13 1.90 10.48 • Rumker . . 1680 98.0 40.5 54.5 7.0 90.5 7 16 54.10 6.35 353.30 4.13 • Mara . . . 8.F. 36.0 49.0 9.9 15.5 98.5 7 19 2.24 8.90 M Rumker . . 1680 97.9 40.5 53.5 7.3 90.0 7 99 53.70 5.85 351.46 3.15 651 Man . . N.P. l.< 15.5 29.0 43.0 55.5 72598.90 9.99 « Ranker . . 1680 55.5 8.8 91.8 35.9 48.8 7 3981.90 -(-5.16 —353.00 +4.13 Remarks. All observation* made by me to nisht arc good, a Excellent. I Obw-rv. •! l. E. A a. &.I. Air. Wet. •• •• 8. 8. 8. h. m. 8. Rev. III. 8. Kev. Inches. • • 1 Benel ... 405 93.2 35.5 48.5 2.0 14.8 4 14 48.60 +13.01 28.180 70.0 54.9 9 Man . . . N.P. 11.7 35.0 38.3 51.5 4.0 4 17 38.08 3.74 +2 49.48 —9.27 3 4 Besael ... 405 Man . . . 8.F. 96.7 14.5 37.0 37.5 50.9 41.0 3.7 54.0 16.5 7.0 4 19 50.22 4 33 40.80 13.48 3.14 2 50.58 10.34 Ther. att. 70°. 5 Bar. rrrl. to 32° F. So Be«el ... 405 19.0 35.0 38.0 51.0 4.5 4 24 38.10 13.93 ''"'' 6 Man . . . N.P. 1.0 14.2 97.3 41.0 53.5 4 97 37.40 4 69 2 49. 3» 9.21 7 Benel ... 405 48.5 1.7 H.7 98.5 41.0 4 99 14.88 14.35 8 Man . . 8.F. 38.5 59.0 5.0 18.5 31.2 4 39 5.04 4.12 2 50.16 10.23 9 Besucl ... 405 33.5 47.0 0.5 14.0 26.7 4 34 0.34 14.90 10 Man . . . N.P. 93.5 35.5 48.7 3.3 15.0 4 36 48.80 5.57 2 48.46 9.33 11 Hotel ... 405 18.7 32.9 45.3 58.5 11.5 4 38 45.34 15.26 19 Man . . . 8.F. 8.2 91.7 35.0 48.3 1.0 4 41 34.83 5.01 3 49.58 10.25 13 Besoel ... 405 7.0 90.5 33.7 47.0 0.0 4 43 33.64 10.94 14 Man . . . N.P. 54.5 8.0 91.9 34.5 47.5 4 4621.14 1.74 2 47.50 9.90 15 He.se! ... 405 1.0 14.5 38.0 41.2 54.0 4 48 27.74 11.37 16 Man . . . S.l'. 50.0 3.3 16.5 39.7 42.5 4 51 16.40 1.15 2 48.66 10.92 17 Benel ... 405 57.0 10.5 23.5 37.0 49.5 4 5333.50 11.89 18 Man . . . N.P. 44.0 57.0 10.3 33.5 36.5 4 56 10.96 2.64 2 46.76 9.95 H llesael ... 405 29.5 43.0 56.0 9.5 93.9 4 57 5^.04 12.22 •; ' Man . . . 8.F. 17.5 30.7 43.7 57.9 10.9 5 0 43. t6 3.10 2 47.82 10.12 21 llessel ... 405 15.3 28.7 41.7 55.5 8.0 5 941.84 13.67 22 Man . . . N.P. 1.5 14.5 28.0 41.0 54.0 5 5 27.80 3.53 345.96 9.14 B . Bewel ... 405 57.5 II. 0 34.0 37.5 M>.2 5 7 94.04 12.05 M Man . . . 8.F. 45.0 58.9 11.5 94.7 37.3 5 10 11.34 I.M 347.30 10.09 25 Benel . • . 405 9.3 93.0 36.0 49.3 9.0 5 19 35.92 12.49 96 Man . . . N.P. 54.7 8.0 31.0 34.3 47.0 5 15 21.00 3.44 2 45.08 9.05 27 Benel . . . 4IJ5 37.7 51.5 4.7 18.9 31.0 5 17 4.69 10.99 28 Man . . . S.F. 94.7 38.0 51.0 4.5 17.2 5 19 51.08 0.88 2 46.46 10.11 99 Beimel ... 405 31.5 45.0 58.0 11.5 94.3 5 21 58.06 11.41 30 Man . . . N.P. 16.0 29.5 42.7 56.0 8.7 5 21 42.58 2.34 2 44.52 9.07 31 B«*8Cl ... 405 24.0 37.5 50.7 4.2 17.0 5 96 50.68 11.77 39 Man . . . S.F. 9.7 23.9 36.0 49.7 2.2 5 3936.16 +1.69 +9 45.48 —10.08 10 OPPOSITION OF MARS, 1849-50, HKtK.MIIK.il 14. 1- !•.> 1 ..mini.. .1. : X »hjm. rlin.iinmrirr lime of lrmn.it. MranoTwirri. Micr. Planet— Star. Bar. Thrnnom.-K.-i. A. B. C. D. E. A«. A A Air. Wit. Rev. in. «. EOT. Inche*. • • 54.9 • 94 • • m Bonel ... 405 Man . . . N.P. Bwaal . . . 405 Man . . . 8.P. B«Ml ... 405 18.0 0.0 43.0 97.5 18.0 99.5 13.9 SO. 3 41.0 31.0 49.5 98.9 9.9 54.5 44.0 Mt.O 39.5 93.0 7.7 57.5 8.7 sa.i 35.7 90.3 10.9 :. 31 «.54 5 3496.98 5 36 9.44 5 38 54.90 84344.14 + 19.34 3.95 19. 59 9.57 11.54 +9 43.74 9 44.76 -9.09 10.03 • m Th»r. ntt. 70.-3 Bar. red. :,. • 1'. tum 70.0 • Man . . . N.P. 0.5 13.9 96.6 40.0 53.0 5 46 96.66 9.67 943.59 8.87 .-• Be*ad . . . 405 91.5 34.3 47.5 1.5 14.5 5 50 47.90 19.30 40 Mara . . . 8.P. 4.5 18.0 31.5 44.8 57.3 5 53 31.36 9.33 9 43.36 9.97 41 Benael ... 405 SO. 5 4.5 17.9 30.5 43.3 5 56 17.90 19.48 41 Man . . . N.P. 39.9 45.5 56.5 19.0 94.5 5 58 58.54 3.99 941.34 8.49 43 B«aKl ... 405 3.0 16.0 98.8 49.5 55.9 6 1 29.10 13.37 44 Man . . . B.P. 4.1.9 56.5 11.5 95.9 37.7 6 4 11.63 3.43 •_• ;.'..-.j 9.84 45 Bevel ... 405 99.0 49.5 55.5 9.0 91.5 6 6 55.50 13.84 49 Man . . . N.P. 9.5 93.5 36.5 49.5 9.5 6 9 36.30 5.10 9 40.89 8.74 47 Beaatl ... 405 49.5 56.0 9.5 93.5 35.5 6 13 9.90 10.67 48 Man . . . S.P. 94.5 38.0 51.5 4.5 17.0 6 1551.10 0.77 3 41.90 9.90 49 BeaMl ... 405 9.5 33.0 49.5 9.9 6 17 36.06 11.31 SO Man . . . N.P. 49.5 3.3 16.0 99.5 49.5 6 19 16.06 9.48 3 40.00 8.83 51 B'xl ... 405 31.5 44.5 57.5 11.0 93.7 6 93 57.64 11.70 as Man . . . 8.P. • • 95.5 38.5 59.0 4.5 6 95 38.51 9.09 940.87 9.61 53 Bewel ... 405 55.5 9.0 92.5 35.5 48.5 6 98 93.90 13.43 54 Man . . . N.P. 35.0 48.9 1.0 14.5 97.5 6 31 01.34 +3.63 +3 99.04 —8.80 Remarks. The observation* of to night are not a« (rood u UIMC or yenrrday, there being more ungteadinen in the atmoophete, and a leu pert, ,-t definition of all objeeu. J. M. O. a Recorded 53. 0* at wire D. » The remaining mi>uure> fay Mr. MacRae. Result*. h. m. a. m. ». Rev. i n Mean N. P. . . Fourteen traniitu . . 5 33 7.39 + 9 4I..VJ3 . . . — 9.038 . . . -955.93 Mean 8. P. . . Thirteen traiuiu . . 5 33 0.47 + 9 46.111 . . . . —10.060 . . . =3 16.07 h. m. *. h. m. n. Correction for chronometer at 5 93 . . . —3.77 Santiago sid. time N. P . . 5 93 3.5-J Correction for chronometer at 5 39 . . —3.77 Bantingo ild. time 8. F 5 31 56.70 6.89 A P. P. limb, in A. R. reduced to arc Variation of A. R. In 7i. .... Okacrved P. P. diameter . h. m Ap »|591 93.77 — 0.19 93.65 0.90 A N. 8. limbs mlcr. in rev 1.034 = 90.15 Variation of declination in 7t. . . . —0.01 Corr. for diam. of micr. tvirei . . . —3,90 ObMtvcd N. 8. diam. 1. 1 17.94 h. m. Ap.'i 31 0.31 AT SANTIAGO DE CHILE. 11 DECEMBER 15, 1849. 1 No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. 4(5 Air. Wet. s. 8. 8. 8. 8. h. in. s. Rev. 111. 8. Rev. Inches. - • 1 Bessel ... 405 30.5 34.0 47.5 1.2 13.5 3 33 47.34 +8.92 28.150 70.0 58.5 9 Mara . . . N.P. . . 44.0 57.0 10.5 23.5 3 34 57.14 4.10 +1 9.80 —4.82 3 4 5 Bessel ... 405 Mara . . . 8.F. Besnel ... 405 38.5 48.5 50.3 53.0 2.3 3.5 6.3 15.3 16.7 20.0 28.5 30.2 39.5 41.0 43.0 3 38 6.06 3 39 15.12 3 41 16.74 9.42 3.50 9.48 1 9.06 5.93 Tlier. alt 70° .5 Bar. red. to 32° P. 28.036 6 Mara . . . N.P. 58.0 11.0 94.5 38.0 50.5 3 42 34.40 4.70 1 7.66 4.78 7 Bessel ... 405 13.2 36.0 39.5 53.5 6.0 3 44 39.61 9.62 8 Mara . . . S.F. 91.5 34.7 48.0 1.2 13.7 3 45 47.82 3.68 1 8.18 5.94 9 Bessul ... 405 17.3 31.0 44.5 58.0 10.5 3 47 44.26 9.72 10 Mara . , . N.P. 94.9 37.7 51.0 4.3 16.7 3 48 50.92 4.95 1 6.66 4.77 11 Bessel ... 405 19.5 26.7 39.7 53.2 6.0 3 50 39.6-2 9.88 / 19 Mara . . . 8.F. 91.7 38.0 49.0 2.7 15.2 3 51 48.92 3.95 1 9.30 5.93 13 Bessel ... 405 54.5 7.7 31.0 34.5 47.3 3 54 30.98 9.86 * 14 a Mara . . . N.P. 0.2 16.3 39.0 43.5 55.0 3 55 28.60 5.14 1 7.62 4.79 15 Bessel . . .405 49.0 55.3 8.3 21.7 34.5 3 58 8.39 10.09 16 Mara . . . S.F. 48.5 2.0 15.3 28.5 41.0 3 59 15.06 4.97 1 6.74 5.75 17 BesMl ... 405 95.9 38.5 51.7 50.0 17.5 4 1 51.58 10.05 18 Mara . . . N.P. 30.5 43.7 56.5 10.0 23.5 4 3 56.64 5.33 1 5.08 4.79 19 Bessel ... 405 !8.0 31.3 44.7 58.0 11.0 4 4 44.60 10.93 90 Mara . . S.F. 24.2 37.5 50.5 4.0 17.0 4 5 50.64 4.53 1 6.04 5.70 31 Bessel ... 405 6.0 19.9 39.0 45.8 58.5 4 9 33.18 10.30 39 Man . . . N.P. 10.5 93.5 38.7 50.0 3.0 4 8 36.74 5.59 1 4.56 4-71 93 Bessel ... 405 45.2 58.7 11.5 95.5 38.0 4 10 11.78 10.34 346 Man . . . S.F. 51.0 4.7 17.7 31.3 43.7 4 11 17.68 4.63 1 5.90 5.79 35 Bessel ... 405 28.7 49.0 55.0 8.5 91.9 4 1355.08 10.49 96 Mara . . S.F. 34.7 47.7 0.5 14.0 96.7 4 14 0.72 4.76 1 5.64 5.73 27 Bessel ... 405 19.0 95.3 38.5 52.0 4.5 4 15 38.46 10.53 98 Mara . . . N.P. 16.0 99.5 43.3 55.7 8.5 4 16 42.40 5.90 1 3.94 4.63 39 Bessel ... 405 56.2 9.3 99.7 36.0 49.0 4 18 32.64 10.66 30 Mara . . . S.F. 1.5 14.0 27.7 41.9 54.0 4 19 27.68 4.98 1 5.04 5.68 31 Bessel ... 405 «3.5 36.5 49.7 9.7 15.5 4 91 49.58 10.65 33 Mar. . . . N.P. 96.5 40.0 53.0 6.5 19.5 4 22 53.04 6.06 1 3.56 4.55 33 Besecl ... 405 18.7 3-2.0 45.2 58.7 11.5 4 94 45.32 10.73 34 Man . . . S.F. 93.5 37. u 50.0 3.5 16.9 4 35 50.04 5.10 1 4.83 5.63 35 Bewel ... 405 4.3 17.5 30.7 44.3 57.3 4 27 30.76 10.88 36c 37 Man . . . N.P. Bessel ... 405 7.3 44.5 91.0 57.7 33.7 11.0 47.0 24.9 0.0 37.0 4 38 33.78 5 9 10.88 6.91 6.75 1 3.02 4.67 38 d Mara . . . N.P. 44.0 57.5 10.5 24.0 37.0 5 10 10.60 3.30 59.72 4.45 39 Bewel ... 405 18.0 31.0 44.0 57.3 10.0 5 11 44.06 6.58 40 Mara . . . S.F. 18.5 31.7 44.7 58.2 11.0 5 19 44.83 1.06 1 0.76 5.40 41 Bessel ... 405 56.0 9.5 23.3 35.7 48.5 S 14 32.38 6.60 43 Mais . . . N.P. 56.7 9.9 23.3 35.7 48.0 5 15 22.36 2.30 59.98 4.40 43 Besscl . . . 40.5 38.3 51.7 5.0 18.3 31.0 5 17 4.Wi 6.66 44 Man . . . S.F. 39.0 53.5 5.5 18.7 31.5 5 18 5.44 1.23 1 0.58 5.43 45 Bessel ... 405 91.0 34.0 47.0 0.5 13.3 5 19 47.16 6.83 46 Mara . . . N.P. 19.7 33.3 46.3 59.5 13.3 5 90 46.18 +3.30 + 59.03 —4.47 12 OPPOSITION OF MARS, 1849-60, 111 . i 'iiir.u i . 4* 4 Otftf\f i ..... ' M MfWta Mirr. Ptanrl-fllar. Bar. A. 8. C. D. 1 A*. St. Air. Wet. h. in a. Rev. m. «. Rn. ta •„.. • • 47 BMri ... 405 18.0 ».3 49.5 55.7 9.0 59149.50 +8.87 98.150 70.0 58.5 48 M.r. . . . 8.F. 18.0 90.5 49.7 56.0 8.7 59344.58 1.38 +1 0.08 -5.49 « • 51 BnaH ... 405 Man . . . N.P. Bmel ... 405 50.7 48.0 ai.o 4.0 9.5 34.0 18.7 15.7 47.5 30.5 99.0 0.7 43.0 41.7 13.5 595 16.98 5 9G • 5 97 47.34 6.86 9.43 6.94 58.60 4.43 Tht. att 70'. 5 Bar. red. to 3*> K. • Man . . s.r. SI.O 3(.0 47.5 • 13.0 598 47.14 1.50 58.40 5.44 53 BWMI ... 405 3.3 18.5 99.7 43.9 56.0 5 30 99.74 7.04 M Man . . . N.P. 1.5 14.5 97.7 41.4 51.0 5 31 97.74 9.53 58.00 4.51 • Rnarl ... 405 48.0 1.9 14.0 97.5 40.9 5 33 14.18 7.07 56 Man . . . B.P. 47.0 14.0 97.3 38.7 5 34 13.70 1.60 | .. 5.47 57 Bmel ... 405 «.o 35.5 48.5 1.7 14.9 53548.38 7.11 58 Man . . . N.P. 90.0 33.5 48.5 0.0 19.7 5 36 46.54 9.75 58.16 4.36 • Brwel ... 405 57.0 10.9 93.3 38.7 49.3 5 38 93.30 7.18 M Man . . . 8.K. 58.0 V.O • 1 35.7 48.5 53992.98 1.78 5.40 n BFOT| ... 405 48.3 9.7 14.5 97.7 40.5 5 41 14.74 7.99 • Man . . 48.7 0.0 13.3 96.5 . 549 13.14 1.87 58.40 5.49 a Bend ... 405 1B.5 33.0 48.9 S0.5 19.5 5 43 46.14 7.99 04 Man . . . N.I'. 17.0 30.0 43.0 56.5 9.5 5 44 3J.-JO 9.98 57.08 4.33 85 86 Rr-el ... 405 Man . . . N.P. 4 0 0.5 17.0 13.9 30.9 96.5 43.7 40.0 56.0 *9.7 5 4830.18 5 4V 96.58 7.74 3.30 56.40 4.44 «7 BMM! ... 405 M 15.7 99.0 49.5 55.3 5 61 99.00 7.68 68 Man . . . 8.F. 0.5 14.0 97.0 40.5 53.0 55997.00 9.30 58.00 5.38 a> BeMcl ... 405 se.a 51.9 4.5 18.0 30.5 554 4.48 7.73 70 Man . . . N.P. 34.* 47.7 1.0 14.9 97.0 555 0.89 3.35 56.34 4.38 :i BMM! ... 405 8.7 19.5 33.0 46.3 59.0 556 39.90 7.80 79 Man . . . B.r. 4.0 17.0 30.3 43.7 56.5 5 57 30.30 9.33 57.40 5.47 73 BMM| ... 405 8J.I 49.5 55.5 8.5 99.0 6 1 55.50 7.90 74 < Man . . . N.P. 95.0 38.5 51.8 5.5 18.9 6 9 51.80 3.54 56.30 4.36 75 Banal . . 405 44.0 57.0 10.0 93.5 38.0 6 6 10.10 7.53 78 Man . . . 8.F. 40.5 53.5 5.5 18.0 31.5 6 6 6.00 9.11 55.90 5.49 77 Bawl ... 405 31.5 44.5 57.8 11.0 93.5 6 7 57.66 7.34 78 Man . . . N.P. 05.5 . 53.0 6.5 19.9 6 859.74 . I 55.08 4.05 7> 80 81 tti-wl . . 405 M»n . H K 18.5 38.5 35.0 W.O W.9 48.5 4.VU 5.0 ' • 58.5 18.5 15.0 11.5 31.0 6 II 48.50 G 111 4.i. Ill 6 15 5.04 7.5U 9.31) 7.59 1 H 5.90 Bowl ... 405 81 Man . . . N.I'. 33.0 48.5 5».5 13.0 ' 6 15 59.60 3.45 K . 4.14 81 Bowl ... 405 4.3 17.11 43.5 58.0 6 IK 30.90 7.50 M Man . . . B.K. 50.5 13.3 98.5 39.3 51.5 • 9.36 66.08 5.14 • BOTri. . . 405 0.5 13.8 98.7 40.5 6 91 26. W 7.68 88 Man . . . N.P. • • 8.0 91.9 34.5 47.0 69991.06 3.49 54.14 4.19 07 BnaMl. . . 405 48.1 1.5 14.8 98.8 41.0 694 14.86 7.86 M Mm . . . B r. 43.5 57.0 10.0 93.5 39.5 695 10.10 9.64 . M 6.9) m B«*Ml. . . 405 5.0 lt.0 33.0 45.7 56.0 697 31 .W 7.33 H Man . . . N.P. 6J.8 1«.9 95.7 38.0 a.o • 3.54 53.64 3.79 tl BMM| ... 405 38.5 53.5 8.5 19.:. 39.3 6 31 6.98 7.99 m Man . . B.P 48.5 1.5 15.5 97.8 6 39 1.86 +9.80 + 65.40 —5.19 AT SANTIAGO DE CHILE. 13 DECEMBER 15, 1849— Continued. Remarks. Observations prior to 5A. 8m. arc by no mcnns satisfactory ; the image of Mars being tremulous an though floating in a basin of agitated mercury, and badly defined. a There was probably a slip of the telescope between c Tolerably good observation. wires A and II, occasioned by rapid turning of tin- d Observations tolerably good during the remainder of miermiieter screw. II"' M rn-> tu.'ule by Mr. J. M. G. 4 Micrometer reading recorded +5. 63. . « Observed by Mr. MacKae.. Results. h. m. s. m. a. Rev. / i. !•'. . Nine transits ..43 37.07 5 47 44 31 1 6.747 .... 5.778 . . 56 934 . . . . 4.986 . . . . 1 59.61 Mean S. F. . . Fourteen transits h. in. Correction for chronometer at 4 03 . Correction for chronometer at 4 03 . . . 5 SO 19.67 8. . . . —5.48 . . —5.18 h. m. s. . . 4 3 8.90 + sti.oao .... —s. sea . . h. m. Correction for chronometer at 5 48 . Correction for chronometer at 5 50 . . . =144.50 B. . . . —5.61 . . . -5.6:1 h. m. s. . . 5 47 38 70 . . 4 3 31.59 . . M.M . . 9 35 35 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 33< . . . 18.99 . . . + 0.49 . . . 18.64 A N. 8. limii inn-. In rev Variation of declination in 33f. . . 1.079 = 90.39 + 0.09 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 2m. 35«. . . Observed P. F. diameter .... . . . 16.99 . . . + 9.B5 . . . 19.14 Observed N. S. diameter .... A N. B. limbs mic. in rev Variation of decimation in 9m. 35>. . Corr. for iliaiu. ol' inier. wires . . 18.71 . 1.076 = 90.97 + 0.14 - 9.90 18 91 h. m. . . . . 0.12 h. m. A p at 5 47 . . . . 0 09 A 0 at 4 03 . . 0.14 A p at 5 50 . 0.11 DECEMBER 1O, 1849. No. for reference. Object. Chronometer time of transit. Menu ill wires. Micr. Planet— Star. Bar. Tllermnineler.s. A. B. 0. D. E. A a. Aft Air. Wet. B. l. - g. S. b. m. 8. Rev. 8. Rev. Inches. • •J 1 Man . . . N.P. 19.5 95.S 39.0 9 5995.58 +4.10 88.116 74.1 59.4 9 lienscl ... 405 . . 47.5 0.7 14.9 9 53 0.71 5.00 -35.13 —0.90 3 4 5 Man . . . 8.F. ... 405 Mara . . . N.P. 56.9 30.0 98.0 9.5 43.5 41.3 93.0 57.0 54.7 9 54 9.48 9 54 43.41 9 55 41.94 3.11 5.06 4.31 33.93 1.95 Ther. nit. 74°. 0 liar. ,ol lo 32° F. •',.'.i!ll 6 . . .405 • • 4.0 16.7 30.9 9 56 16.88 5.16 35.64 0.85 7 Man . . . 8.F. 17.0 99.5 43.5 9 57 99.91 3.48 8 Bessel ... 405 • • 59.S 5.7 19.3 9 58 5.74 5.33 35.83 1.75 g Man . . . N.P. 15.S 99.0 49.0 3 0 98.74 4.38 10 Bessel ... 405 51.7 4.5 18.5 • • 3 1 4.81 5.32 36.08 0.84 11 Man . . . 8.F. . 48.5 1.7 15.0 3 9 1.64 3.43 19 Bessol ... 405 93.3 36.3 50.0 3 9 30.41 5.95 34.78 1.89 13 Mar. . . . N.P. . 37.7 40.7 M.O 3 3 40.71 4.99 14 Bessel ... 405 • • 4.0 17.0 30.5 3 4 17.08 B.M 3B.37 0.79 IS Man . . . 8.F. m , 7.7 91.0 34.5 3 5 30.98 3.44 16 Bessel . . 405 49.S 56.0 9.3 • • 3 S 55.84 ; ••.-."•' —34.80 —1.79 14 OPPOSITION OF MARS, 1849-50, DKfKMHKK IB. IN-tO-Conllnnrd. 1 & 0*0. Chronometer lima oflrmn.it Meanofwlm. Micr. Planet— Star. Bar. 1 ! ' 'i , !; ' ' 1 A. B. C. O. 1 An Ai Air. Wet. Rev. >. Rev. tm htft • • 17 Man . . . N.P. • . 10.0 93.9 37.0 3 793.31 +4.60 98.116 74.1 59.4 11 BwMl . . . 405 . 41.5 59.5 13.0 3 7 59.58 5.33 -36.97 -0.73 19 • • Man . . . 8.F. Bend ... 405 Man . . . N.P. - • 3.0 38.0 31.5 18.0 51.5 44.5 99.5 5.0 58.0 • • 3 9 18.08 3 951.41 3 10 44.56 3.63 5.48 4.79 35.33 1.85 Ther.att. 74VO Bar. ml. ... • r. 97.991 99 Be**el ... 405 ' • 8.5 91.5 35.0 • • 3 11 91.58 5.58 37.09 0.79 93 Man . . . B.F. f , 81 .7 34.7 48.3 . f 3 19 34.81 3.79 M Bead ... 405 • • 57.0 10.5 93.7 3 13 10.31 5.63 35.50 1.84 • Man . . . N.P. . 5.3 18.3 31.7 3 14 18.34 4.90 as B«Kl ... 405 • • 43.9 55.0 8.7 • • 3 14 55.91 5.71 38.87 0.81 «7« Man . . . 8.F. m t 59.0 19.9 95.5 f 3 16 19.14 4.03 as Boael ... 405 • • 35.0 48.0 1.5 • • 3 16 48.08 5.93 J5.94 1.90 • Man . . N.P. t f 49.9 55.3 9.0 , t 3 17 55.91 5.07 30 B«Kl ... 405 • • 19.5 39.5 48.0 3 18 31.58 5.99 37.37 0.85 31 Man . . . B.F. f f 54.3 7.3 90.7 . 3 90 7.34 4.95 99 Be—el ... 405 • • 30.5 43.5 57.0 • • 390 43.58 6.01 36.34 1.76 33 Man . . . N.P. f . 53.5 8.5 90.0 m f 399 6.58 5.43 34 BoMDl ... 405 • • 31.0 44.3 57.7 39344.94 6.16 37.66 0.73 35 Man . . . 8.F. t . 48.9 1.5 11.7 . , 3 94 1.38 4.51 at Be«e) ... 405 • • 94.7 37.7 51.9 • • 3 94 37.78 6.39 36.40 1.88 37 Man . . . N.P. f f 31.0 44.0 57.8 395 44.18 5.59 38 Bend ... 405 • • 9.0 99.0 35.7 3 96 22.14 6.35 37.96 0.76 • Man . . . B.F. t 3.5 16.5 30.0 t t 3 97 16.58 4.65 40 Bern! ... 405 • • 40.3 53.7 7.0 • • 3 97 53.58 6.39 37.00 1.74 41 Man . . . N.P. . 44.5 57.5 11.0 . 3 98 57.58 5.53 4B Bonl ... 405 • • 99.3 35.7 49.9 • • 39935.64 6.33 38.06 0.79 43 Man . . . B.F. ( f 0.5 13.7 97.9 3 31 13.71 4.78 44 BoMl ... 405 • • 38.0 50.5 4.5 • • 3 31 50.91 6.38 37.90 1.60 45 Man . . . N.P . 49.0 1.5 15.9 . 333 1.81 5.89 • BeaKl ... 405 • • 97.0 40.5 54.9 3 XI 40.46 6.66 38.67 0.77 47 Man . . . B.F. . 35.5 48.7 9.0 . 3 34 48.64 4.97 l- Bald ... 405 . 13.0 98.0 39.5 . . 33598.08 6.68 37.44 1.77 4U Man . . . N.P. . 17.0 30.0 43.5 3 X 30.08 5.95 M Bowl ... 405 • • 66.0 9.0 99.3 • • 3 37 9.01 6.79 38.93 0.77 01 Man . . . B.K. :o.5 93.5 37.0 , . 3 3893.58 5.08 A* BOM! . . . 405 • • 48.3 1.0 15.0 339 1.31 6.91 37.73 1.83 •I Man . . . NP. . 95.0 37.5 51.5 . 3 41 37.91 6.39 64 Bewd ... 405 • • • • 17.5 31.9 44.9 349 17 76 1 • 39.85 0.50 55 Mam . . . 8.F. 40.9 53.5 8.8 t t 3 44 53.41 5.19 51 BCM! . . 405 • • 18.9 31.5 • • • • 34531.99 6.83 38.51 1.71 67 c Man . . . N.P. . 33.5 47.5 . 3 47 47.07 6.35 U Baanl ... 405 • • 14.5 99.0 • • 34898.33 6.91 41.95 0.66 M Man . . . N.P. 38.0 49.0 3.5 § 3 50 49.41 6.40 M Bern. ... 405 • • 18.5 99.9 49.5 • • 3 51 99.31 7.00 39.90 0.60 •1 Man . . . S.F. 17.9 30.5 44.0 3 59 30.48 5.49 aa B— . 1 . . 405 • • 55.8 10.9 94.9 • • 353 9.98 +7.06 -39.50 -1.57 AT SANTIAGO DE CHILE. 15 DECEMBER 16, 1849— Continued. No. for reference. Object. Chronometer time of transit. ean of wires. Micr. Planet— Star. n Bar. hermometers. A. B. C. D. E. A a. * A Air. Wet. s. s. p, s. s. h. m. s. Rev. s. Rev. inches. • o 63 Mars . . . N.P. 10.0 92.8 36.5 3 54 33.10 +6.66 28.116 74.1 9.4 64 Bessel ... 405 50.0 3.0 16.5 3 55 3.08 7.13 —39.98 —0.47 65 66 67c 68 Man . . . S.F. Bessel ... 405 Mars . . . N.P. • • 47.5 98.3 16.8 0.5 0.5 40.7 99.5 13.5 14.5 54.0 43.9 36.5 :; 3 56 0.74 3 56 40.91 3 57 29.74 3 58 13.41 5.61 7.15 .79 7.31 40.19 43.67 1.54 0.59 'her. att. 74".0 Jar. red. o 32° F. 27.991 Bessel ... 405 . . 69 Mara . . . S.F. 9.5 33.0 36.5 3 59 33.91 5.80 70 Bessel ... 405 • •• 49.8 5.3 19.5 • • 4 0 4.74 7.34 41.83 1.54 71 Mara . . . N P. . 44.5 57.5 11.0 . 4 0 57.58 6.89 72 Bessel ... 405 • • 25.2 38.0 51.8 4 1 38.34 7.43 40.66 0.54 73 Mara . . . S.F. 33.5 45.5 59.9 f m 4 2 45.64 6.03 74 Bessel ... 405 • • 13.8 95.9 39.0 • • 4 3 25 58 7.38 39.94 1.35 75 Mara . . . N.P. f 2.5 15.5 39.5 4 4 15.74 7.10 76 Bessel ... 405 • • 43.5 57.5 10.5 • • 4 4 57.08 7.60 41.34 0.50 77 Mara . . . S.F. t t 43.0 56.0 9.2 t f 4 5 55.98 6.09 78 Bessel ... 405 • • 23.0 35.5 49.5 • • 4 6 35.91 7.64 39.93 1.55 79 Mara . . . N.P. f t 30.5 43.5 56.7 t t 4 7 43.48 7.91 80 Bessel ... 405 • • 11.5 94.9 37.5 • • 4 8 94.31 7.79 40.83 0.58 81 Mara . . . 8.F. . 15.9 98.5 49.0 . 4 9 28.48 6.90 89 Bessel ... 405 55.5 8.0 91.5 • • 4 10 8.94 7.68 39.76 1.48 83 Mara . . . N.P. f t 55.8 8.5 32.0 t f 4 11 8.67 7.31 84 Bessel ... 405 • • 35.5 49.5 3.5 4 11 49.74 7.86 41.07 0.55 85 Mara . . . S.F. • • 6.5 19.5 33.5 4 13 19.74 6.44 86 Bessel ... 405 46.5 0.0 13.5 4 13 59.91 7.89 40.17 1.45 87 Mara ... N.P 38.0 51.9 4.5 . 4 14 51.19 7-46 88 Bessel ... 405 • • 19.5 33.5 46.9 • • 4 15 39.64 8.01 41.45 0.55 89 Mara ... S.F . 91.5 34.5 48.0 4 16 34.58 G.57 90 Bessel ... 405 9.9 15.0 98.9 4 17 15.04 8.05 40.46 1.48 91 Mara ... N.P 39.9 43.0 56.5 4 1849.81 7.70 93 Bessel ... 405 • • 11.5 94.5 38.2 4 19 24.64 8.19 41.83 0.49 93 Mara ... S.F 58.0 11.3 34.5 4 21 11.14 6.67 94 Bessel ... 405 38.5 51.8 5.5 4 91 51.84 8.36 40.70 1.69 954 Mara ... N.P 40.1 53.5 7.0 4 99 53.44 7.83 96 Bessel ... 405 • • 99.5 35.5 49.3 4 33 35.64 8.30 42.30 0.47 97 Mara ... S.F 96.3 39.5 53.5 4 94 39.68 6.89 98 Bessel ... 405 • • 7.5 90.7 34.7 4 35 90.88 8.37 41.90 1.45 99 Mara ... N.P t f 27.5 40.5 55.0 4 96 40.91 7.94 100 Bessel ... 405 10.0 23.0 36.3 • . 497 92.98 8.24 43.07 0.30 101 Mars ... S.F 12.5 95.5 39.0 4 -28 25.58 7.02 109 Bessel ... 405 54.0 6.8 30.5 4 39 6.91 8.45 41.33 1.43 103 Mars ... N.P 57.3 10.9 93.5 4 30 10.31 8.06 104 Bessel ... 405 40.0 53.0 6.5 4 30 53.08 8.45 42.87 0.39 105 1 Mara ... S.F . 41.5 54.9 7.5 4 31 54.31 7.13 106 Bcwicl ... 405 • • 92.5 35.5 48.8 • • 4 3935 51 8.52 41.30 1.39 107 Mara . . . N. 58.5 11.7 25.0 4 35 11.64 8.27 108 Bt-iiscl ... 405 • • 41.5 54.7 8.0 4 35 51.64 +8.80 —43.00 —0.53 16 OPPOSITION OF MAB8, 1849-1850, 1)K< K.MliKK Ml, 1M4U— t'outlimrd* 1 1 Mii-r Planet— «tar. Bar. h Okjeel. A. B. C. D. 1 . •llCr. A a. A 4. Air. - a. *. «. •. >. ll. 111. X. Ri-v. B, R«v. !... • • 109 Man . . . 8.F. 3B.9 51.5 •4.5 4 3651.31 +7.49 - M 74.1 59.4 110 Bwd . . . 405 90.0 33.5 48.7 . 1 37 33.31 —49.00 —1.46 Thu. ;ilt. 111 MM . . . N.P. 14.7 98.0 49.0 , , 43898.14 8.33 74VO IH BMM! ... 405 . . 58.0 11.5 95.0 4 .9 11.41 8.89 43.97 0.56 Bur. red. to 32- F. --•-. Ml 113 Man . . . a.f. . . 54.5 7.7 ai.o . . 4 40 7.31 7.50 IM Bwnl. . . 405 • • 37.0 49.7 3.5 • • 4 40 49.96 8.99 49.67 1.49 II5/ Man . . . N P. . 44.0 57.5 m.7 . . 4 41 57.31 8.48 lit Bc«el ... 405 • • - • 41.0 54.3 • • 4 43 41.01 9.04 43.70 0.56 117 Man . . . B.f. 98.7 49.0 SS.5 . , 4 4341.98 7.57 118 BMM| ... 405 • • 11.5 94.7 38.0 4 44 94.64 9.08 42.66 1.51 111 Man . . . N.P. . 37.9 50.5 3.7 . 4 47 50.38 8.78 ISO Bwel ... 405 91.9 34.5 48.0 • • 4 4834.48 9.98 44.10 0.50 191 Man N P 33.3 47.0 4 49 33.41 8.84 191 B«Ml ... 405 4.7 17.7 31.5 4 50 17.21 9.34 4380 0.50 193 Man . . . N.P. 55.5 8.5 91.7 4 51 8.48 8.89 IM Beml ... 405 • • 38.5 53.0 6.5 • • 4 51 59.91 9.39 44.43 0.50 195 Man . . . B.F. 38.0 51.5 4.7 t t 4 59 51.31 7.99 198 Bewel ... 405 • • 91.5 34.7 48.0 • • 4 53 34.64 9.39 43.33 1.40 197 Man . . . N.P. , 19.9 32.9 45.7 4 54 32.98 8.99 196 Be«Ml ... 405 • • 17.0 30.7 43.3 4 55 17.13 9.51 44.75 0.52 199 Man . . . 8.F. . 11.0 94.9 37.5 t f 4 56 24.14 8.19 190 Bewet ... 405 • • 54.7 7.7 91.9 • • 4 57 7.78 9.57 43.64 1.45 131 Man . . . N.P. 48.3 1.2 14.7 458 1.31 9.15 M BcMel ... 405 33.0 46.9 I 59.7 4 58 46.21 9.59 44.90 0.44 m Man . . . 8.F. . . 30.7 43.7 57.9 4 59 43.78 8.99 134 Benel ... 405 • • 14.3 97.7 41.0 • • 5 0 97.58 9.64 43.80 1.49 135 Man . . . N.P. t 9.5 99.5 35.0 t t 5 1 92.58 9.98 IM BMM! ... 405 • • 54.3 7.5 91.9 • • 5 9 7.58 9.77 45.00 0.49 -. - Man . . . 8.F. f f 59.0 4.7 18.5 . . 5 3 4.98 8.30 BMM! ... 405 • • 36.0 49.0 9.3 • • 5 3 49.01 9.73 44.03 1.43 im Man . . . N.P. 98.0 41.0 54.0 , t 5 4 40.91 9.38 m B««cl . . . 405 • • 13.3 96.5 40.0 • • 5 5 96.51 9.85 45.60 0.47 Ml Man . . . 8.F. 11.3 94.5 38.0 5 6 24.51 8.50 :;; Rcael ... 405 • • 55.5 u.n 99.3 • • 5 7 8.84 +9.87 -44.33 -1.37 Remark*. Tli« obMnralkxM made bjr me, unli-w where otherwUe dated, are only tolerably good, both the planet nnd itar having a wave-like motion, very fre- quently iciiilerinc it difficult to perfect a contact at the centre wire. J • M. O. a (iuod obiervaiion. d Recorded 8.0>. at wire D. * The remaining ineanurci by Mr. MacRac. <• Good, c Not good, aud not incorporated in the ineiuu. / Micrometer recorded +7.48. Rtsultt. Mean N. P. iS.F. Tlnriv fin traniitx Tlnm f..ur iranaiu h. m. •. 4 0 27.39 3 59 23. If 0.532 0.393 Rev. —0.611 -1.650 = 0 11.91 =;0 32.16 AT SANTIAGO DE CHILE. 17 DECEMBER 16, 181'J Continued. Results — Continued. h. m. Correction for chronometer at 4 00 . s. . . — 7. '24 h. m. P. 4 0 30.15 . . — 7.24 3 59 15 94 A P. F. limbs in A. R. reduced to arc . . 17.08 . . 1.17 A N. 9. limbs inier. in rev . 1.039 = 20.25 0 06 . . 15.91 2 20 h. m. Art:. I 4 1 // . 0.02 Observed N. 9. diameter .... h. m. A p at 4 0 17.99 . 0.04 DECEMBER It, 1849. Chronometer time of transit. Mean of wires \ft.T Planet— Star. Rap Thermometers. Object. A. B. C. D. E. 4nicr. A.. Ai. uar. Air. Wet. | •j 6 h. m. 8. Rev. m. s. Rev. Inches. • • I Mars . . . S.F. 33.0 46.3 59.5 13.7 35.5 3 38 59.38 +2.02 28.058 74.4 61.9 9 Bessel ... 405 9.0 22.3 35.3 48.5 3 31 22.16 ±0.00 —3 23.78 +2.03 Ther. alt 3 Mars . . . N.P. 11.0 31.3 37. S 50.7 3.5 3 33 37.40 +«.49 71°. a 4 Bessel ... 405 36.0 49.0 2.5 15.7 38.7 336 3.38 3.57 9 24.98 2.99 Bar. red. to 32° F 27.933 5 a Mare . . . S.F. 15.5 98.7 42.9 55.7 8.9 3 37 42.06 5.74 6 Bessel ... 405 38.7 53.0 5.3 18.7 31.3 3 40 5.18 3.72 223.12 9.09 7a Mara . . N.P. 5.3 19.5 31.0 46.2 59.0 3 41 32.60 6.90 8 Bessel ... 405 31.3 44.5 57.7 11.3 93.7 3 43 57.66 3.93 3 35.06 2.97 9 Mara . . . S.F. 35.0 48.3 1.7 15.9 28.0 348 1.64 741 10 Bessel ... 405 59.0 13.3 35.3 39.0 51.7 3 50 25.46 5.6-2 2 23.8-2 1.98 11 Mare . . . N.P. 49.7 3.0 16.3 29.5 42.9 353 16.13 8.98 19 Bessel ... 405 15.0 28.3 41.5 55.0 7.7 3 54 41.34 6.00 335.23 9.96 13 Mars . . . S.F. 48.7 2.0 15.0 38.3 41.2 3 56 15.04 5.40 H Bessel ... 405 13.9 26.3 39.7 53.0 5.7 3 58 39.58 3.29 3 24.54 9.11 15 Man ... N.P 49.5 3.0 16.5 99.5 42.0 4 0 16.10 6.44 M Bessel ... 405 15.5- 38.5 43.0 55.3 8.0 4 3 41.86 3.45 3.25.76 2.99 n Mare . . . s.r. 46.0 59.5 12.7 96.0 38.7 4 4 12.58 5.68 18 Bessel ... 405 10.1 • • 37.7 51.0 4.0 4 6 37.66 3.59 335.08 3.09 19 Mara . . . N.P. 53.0 6.5 19.7 33.2 46.0 4 8 19.68 6.B1 90 Bessel ... 405 19.7 33.0 46.3 0.0 13.5 4 10 43.30 3.79 2 26.02 3.02 21 Mars . . . S.F. 51.0 4.2 17.5 30.7 43.3 4 12 17.31 4.19 • Beuel ... 405 16.7 99.7 43.0 56.5 9.2 4 14 43.02 2.11 3 25.68 3.08 33 Mars . . N.P. 20 15.2 38.3 41.5 54.9 4 16 28.33 4.79 34 Bessel ... 405 39.0 43.0 55.5 9.0 31.7 4 1855.44 1.74 2 27.3-2 3.05 25 Mara . . . S.F. 50.0 3.5 16.5 30.0 42.7 4 21 16.54 5.69 31 Bessel ... 405 16.7 30.2 43.5 56.7 9.2 4 33 43.36 3.57 3 26 72 9.19 171 Mara . . . N.P. 8.0 21.3 34.5 48.0 0.3 4 36 34.42 6.68 38 Be«sel ... 405 36.0 49.3 2.5 16.0 98.7 4 99 2.50 3.66 228.08 3.02 39 Mars . . . S.F. 11. 0 24.2 37.3 50.7 3.3 4 30 37.30 5.93 30 Bessel ... 405 38.0 51.2 4.3 18.0 30.7 4 33 4.44 3.78 2 27.14 3.14 31 Mars . . . N.P. 12.9 35.5 38.7 52.0 5.0 4 34 3S.68 7.04 32 Bessel ... 405 41.0 54.3 7.5 21.0 33.7 4 in 7.50 3.93 2 28.83 3.11 33 Mara . . . s r 30.1 33.7 47.0 0.5 13.2 4 38 46.94 6.25 v 34 BesMl ... 405 48.5 1.5 15.0 28.5 41.0 4 41 14.90 +4.03 -i ti "<; +3.33 18 OPPOSITION OF MARS, 1849-60, I»K« KMIIKU 17. l-l'.i < niilli.n. .1. I ChKMMMMWr UIM of tmulu PhBM— Star. i . M m •• - Object. h v i r«*i Mkr. Bar. A. B. C. D. E. A a. 44. Air. W«. m Rev. •i. g. Rev. i • * z 3S Men . . . N.P. •u 48.0 se.o 19.5 95.0 44958.94 +7.31 :: •- 74.4 •1.9 36 Boarf ... MS i.t 15.* 98.0 41.5 54.5 4 4598.10 4.18 -999.16 +3.13 Ttl«T. Mt. ST Mara . . . N.P. 37.0 50.5 3.5 18.0 31.0 4 48 4.00 7.55 74' .9. Bar. reel. 38 Bmd . . . 405 7.5 90.e 33.8 47.5 0.5 4 SO 34.03 4.33 9 30.03 3.32 37.833 »• Mara . . . 8.F. 44.8 57.7 11.0 14.5 37.9 4 59.11.00 8.65 • Beawl ... 405 13.5 98.5 40.0 53.9 6.5 4 54 38.84 4.98 998.94 9.37 41 « Man . . N.P. 8.5 90.9 33.0 48.5 59.5 4 56 33.14 7.69 « Bcaael . . 405 37.9 50.5 3.8 17.5 30.9 4 59 3.84 4.41 9 30.70 3.91 «• Mara . . . 8.F. 18.0 39.5 45.3 S9.9 19.9 5 0 45.64 6.83 44 Beaitl ... 405 48.9 9.( 15.9 98.5 41.4 S3 15.08 4.59 999.43 9.31 4Se Mara . . . N.P. 30.5 44.5 57.5 10.5 93.5 5 4 57.30 7.90 45 Bmel ... 405 _ 15.* 98.3 49.0 54.7 5 7 28.50 4.73 931.90 3.18 47c Mara . . . 8.P. 9.5 18.0 99.0 49.5 S5.3 5 898.88 7.17 48 Bowl ... 405 39.3 48.0 59.0 19.5 95.5 5 11 59.06 4.88 9 30.40 9.99 49< Mara . . . N.P. 94.3 38.0 51.0 4.5 17.3 5 1351.09 8.91 SO Beaael ... 405 M.l »3 99.3 35.5 49.0 5 16 99.48 5.03 331.46 3.18 SU Man . . . 8.F. 54.0 7.9 90.9 33.8 48.5 S 1890.34 3.09 59 Bw.t-1 ... 405 94.5 38.0 51.3 4.5 17.5 5 91 51.16 0.63 930.89 9.38 S3e Man . . . N.P. 8.0 19.5 39.5 46.9 59.0 59933.64 4.01 54 Bcawl ... 405 36.3 S9.0 5.0 18.9 31.3 5 95 5.16 0.73 9 39.59 . 3.98 S.W Man . . . 8.F. 31.9 44.7 58.0 11.5 94.0 5 98 57.8)> +9.18 M B«*el ... 405 9.7 16.9 99.9 43.7 55.5 5 31 99.96 -0.11 9 31.38 9.99 57 Mara . . . N.P. 40.0 53.9 0.0 18.5 32.5 5 36 6.94 +4.67 58 Bt«el ... 405 13.9 98.5 38.7 53.0 6.0 53838.68 1.45 9 33.44 3.93 50 Man . . . 8.P. 38.3 59.5 6.8 19.9 39.0 5 40 5.80 3.80 80 BC...-I . . . 405 11.7 25.9 38.3 51.7 4.5 5 4938.94 1.57 939.44 3.33 81 Man . . . N.P. 53.3 6.3 19.7 39.7 45.7 5 44 19.54 4.89 63 B«aMl ... 405 97.0 40.3 53.5 8.7 19.5 5 46 53.40 1.63 9 33. PC 3.99 ' Man . . . 8.F. •.0 13.3 98.S 40.0 59.5 S 4896.46 4.08 V M BeaMl ... 405 33.3 48.3 59.5 13.0 96.0 5 5059.89 1.74 933.16 9.34 65 Man . . . N.P. 1.7 15.0 98.9 41.3 M.O 5 S3 98.04 5.15 66 B«nl ... 405 38.3 48.7 9.5 18.0 98.0 S 55 9.70 1.80 934.68 3.35 67 Man . . . 8.F. 10.0 93.5 36.5 50.0 9.7 5 56 36.51 4.97 88 Btmel ... 405 44.0 57.5 10.5 94.0 38.5 5 S9 10.50 1.88 9 33.96 9.38 89 Mara . . . N.P. 17.0 30.X 43.5 S7.0 9.7 6 0 43.48 5.97 70 BPMC! . . . 405 59.0 5.3 18.7 44.7 6 3 18.58 1.97 9 35.10 3.30 Man . . 8.F. 37.3 10.7 3.7 17.0 30.0 6 5 3.74 4.38 n B«Ml ... 405 19.0 i-..:i 38.5 59.0 4.5 6 7 30.46 9.04 i 34.79 9.39 71 Mara . . . N.P. 99.7 38.9 49.S 3.0 15.5 6 9 49.38 6.49 74 BMOTI • • • 405 58.7 U'.ii 95.0 M.5 51.3 6 1995.10 3.15 935.79 3.97 78 Man . ' ; in.: 54.9 7.3 90.3 6 13 54.04 s.ei • B»a«al . . . 4U1 • . 16.0 , a».3 49.5 55.9 6 16 98.10 3.98 935.06 9.35 77 Mara . . . N.P. 48.5 0.0 13.0 98.5 39.9 6 18 13.04 6.89 78 BWM! . . . 404 13.9 38.9 49.7 3.9 15.6 6 90 49.58 3.35 936.54 3 34 TV Mir. . . . H.F. 51 .5 4.7 17.7 11.9 44.0 6 99 17.89 6.90 M BfMl . . 40J 87.11 40.3 53.7 7.0 19.7 6 94 53. .W +4.57 -9 35.78 +9.33 AT SANTIAGO DE CHILE. 19 DECEMBER 17, 1849— Continued. i Chronometer time of transit. Planet — Star. Bar Thermometers. 1 Object. A. B. C. D. E. An. A ,5. Air. Wet. ,2 6 8. '• 8. B. 8. h. m. s. Rev. m. e. Rev. Inches. ° | 81 Mare . . . N.P. 39.7 53.2 6.5 19.7 32.5 6 28 6.32 +7.12 28.068 74.4 61.9 82 Bewel ... 405 17.2 30.5 43.7 57.0 9.7 6 30 43.76 3.76 — S 37.44 +3.36 Ther. att. 83 Mars . . . S.F. 3.5 30.0 43.5 56.2 6 32 30.01 6.32 74°. 2 84 Bessel . . . 4«5 40.2 53.5 6.5 20.0 32.7 6 35 6.58 3.80 2 36.57 2.53 Bar. red. to 3i' F. 27.933 85 Mara . . . N.P. 14.0 27.4 40.2 53.7 6.7 6 36 40.40 7.37 86 Bessel ... 405 53.3 5.5 18.5 32.0 44.5 6 39 18.56 4.09 2 38.16 3.28 87 Man . . . S.F. 30.7 34.2 47.5 0.8 13.3 6 40 47.30 6.68 86 Bessel ... 405 68.9 11.5 24.5 38.0 50.5 S 43 -24.64 4.16 237.24 3.42 89 Mara . . . N.P. 39.5 53.0 6.3 19.5 32.0 6 45 6.04 7.58 90 Bessel ... 405 18.2 31.3 44.7 58.0 11.0 6 47 44.64 +4.12 —2 38.60 +3.46 / 1 Remarks. The observations of lo-night were made under the most favorable circumstances, and are uniformly good. Mars and its comparing star presented •harp, clear discs, pouring over the field with most extraordinary steadiness. a Excellent. d Atmospheric and instrumental conditions unchanged ; i Apparent motion of planet absolutely without tremor. or if changed, fm the better, c Observed by Mr. MacRae. Good. Mean S. F. . . Twenty two transit! . Mean N. P. . . Twenty-three transits . h. m. h. m. i. . 5 4 53.82 . 5 8 26.64 •h . . —9.07 Result is . m. s. Rev. — 2 29.864 .... +2.246 . — 2 31.319 . . . +3.179 . 1 ... =0 43.77 ... =1 .96 h. m. s. . . . 5 4 44.75 . . —9.07 . . . 5 8 17.57 . . . 3 32 8-3 A P. F. limbs in A. R. reduced to arc . Variation of A. R. in 3m. 33. Observed P. F. diameter t< . . 21.82 . . — 3.8S . . 18.00 A N. S. limbs micr. in r-:v. . . . Variation of declination in 3m. 33*. . . 0.963 = 18.18 — 0.16 . . — 2.20 h. m. A pat 5 8 . 0.05 Observed N. S. diameter . . . h. m. A 0 at 5 10 . . 15.82 // 0.07 DECEMBER 18, 1840. . ' , \ s : i , , 5 Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star.- Bar. Thermometers. A. B. C. D. E. A a. A A Air. Wet. i. - B. - B. h. m. s. Rev. m. B. Rev. Inches. • B la Mars . . . S.F. 19.0 33.0 45.2 58.8 11.5 3 16 45.30 + 8.83 28.133 69.4 57.1 3 4 5 Bessel ... 405 Mars . . . N.P. Bessel . . 405 Mars . . . S.F. 27.0 59.1 8.5 2.8 40.? 12.5 31.8 16.1 53.1 25.5 35.0 39.5 6.5 39.1 48.3 43.5 19.5 51.7 1.3 55.5 3 30 63.28 3 22 25.58 326 34.98 3 29 29.28 3.68 10.48 4.48 9.96 —4 7.98 4 9.40 +5.15 6.00 Ther. att. 66°. 0 Bar. red. to32"F. 28.032 1 Bmwel ... 405 10.5 23.5 37.0 50.5 3.2 3 33 36.94 4.95 4 7.66 5.01 7 Man . . . N.P. Bern! ... 405 5.0 14.5 18.5 37.7 31.7 41.1 45.2 54.5 57.5 7.2 335 31.58 3 39 41.01) 10.17 +4.06 —4 9.42 +6.11 20 OPPOSITION OF MARS, 1849-50, t ».„*.-*-««-«. )K< KMIIF.lt 1 I OH~, rhronomru-r tiinr of iraii»ii. Mrtnofwim Mier. Planrt— 8ur. Bar. ! A. B. C. D. • E. A. . An. 1 a| ban • [• , Rev. 1 : '.' - • 1 • OH* •> 1. '. 9 Man . . . 8.F. 18.9 99.4 49.5 5S.8 8.0 3 41 48.54 +8.48 98.133 OB. 4 10 BWM! ... 405 , 38.0 61.9 4.5 17.6 3 45 81 14 4.W -4 7.00 +5.13 Tber. all 11 Man ... N.P 37.5 SI.O 4.0 17.5 30.8 347 4.04 8.70 , ,. 18 •••Ml ... 405 47.5 1.0 14.6 97.7 40.5 3 51 14.84 8.41 4 10.80 0.39 Rar. <••< in W« F 98.03J u Man . . . 8.F. 50.1 3.4 16.4 98.7 49.6 3 54 It. 49 7.43 14 BMW! ... 405 59.6 19.5 95.6 38.3 59.0 3 5895.84 9.49 4 9.49 5.91 15 Man ... N.P 15.7 98.8 49.3 55.6 8.6 4 9 49.18 8.86 10 BMW) . . 405 97.0 40.5 53.5 7.3 19.0 4 6 53.58 9.66 4 11.40 6.18 17 Man . . . B.F. 11.8 94.8 36.0 51.5 4.9 4 838.06 8.10 U BMacI ... 405 . 35.5 46.8 9.1 14.9 4 19 48.06 9.85 4 10.60 5.95 10 Man . . . N.P. 46.5 0.0 13.0 96.5 38.3 4 15 13.06 9.40 88 BMad. . . 405 58.5 19.0 95.3 388 61.5 4 19 35.94 3.19 4 19.18 6.98 81 Man . . . B.F. 7.5 90.5 33.7 47.3 0.0 4 31 33.80 8.64 88 B*aa*l . . . 405 18.6 39.0 45.1 56.5 11.5 4 95 45.14 3.45 4 11.34 5.19 83 Man . . . N.P. 4.0 17.5 30.8 44.9 56.5 4 9730.60 9.79 84 Bewcl ... 405 17.5 30.5 43.9 57.1 10.0 4 31 43.80 3.48 4 13.80 6.94 85 Man . . . 8.F. 10.0 93.3 36.6 48.0 8.5 4 33 38.38 9.03 80 B*»M*| . . . 405 35.5 48.B 9.0 14.8 4 37 48.70 3.78 4 19.38 5.95 87 Man . . . NP. 91.6 34.7 47.8 1.4 13.8 4 39 47.84 10.94 98 •••Ml ... 405 35.5 48.8 9.0 15.4 96.9 4 44 1.88. 3.99 4 14.14 6.95 •• Man . . . 8F. 91 .8 34.6 47.5 1.9 13.9 4 47 47.70 9.63 30 1 •••Ml ... 405 34 9 48.9 1.3 14.6 97.5 4 58 1.98 4.30 4 13.56 5.39 ai Man . . . N.P. 58.1 11.9 94.5 38.0 50.8 4 64 94.49 10.89 38 B«Ml ... 405 13.3 96.3 38.8 53.9 6.0 4 6839.79 4.55 4 15.30 0.97 38 Man . . . S.p. 55.6 6.5 21.0 35.3 48.9 5 391.95 5.79 34 Bmtl ... 405 10.9 93.6 37.0 50.9 3.0 6 7 36.118 0.43 4 15.03 5.36 as Man . . . N.P. 9.5 89.6 36.0 49.0 9.9 5 835.96 6.99 36 B-art ... 40ft 95.5 38.0 58.3 5.6 18.7 5 13 59.90 0.63 4 16.94 6.36 IT Man . . . B.F. 97.5 41.0 54.0 7.5 90.3 5 15 54.66 6.36 38 1 Biwl ... 405 55.5 8.5 81.8 35.6 48.0 59091.60 0.89 4 17.80 6.44 1 Man ... v r. 91.9 34.3 47.8 0.5 13.5 5 94 47.40 7.44 40 B«Ml ... 405 36.5 51.7 5.0 18.9 31.0 5 99 4>H 1.15 4 17.48 6.99 41 Man . . . 8.K 90.1 33.5 40.5 58.8 18.6 53046.50 6.68 • Bwa*l ... 405 '36.8 50.0 3.8 16.3 ' 5 35 3.06 1.S9 4 10.56 5.37 41 Man . . . N.P. 38.5 59.0 5.8 18.8 31.8 538 5.09 +6.01 44 Bmel ... 405 57.8 10.8 • 36.0 48.5 5 49 93.49 -0.44 4 18.40 6.45 40 Man . . . P.P. : 53 18.5 31.6 45.9 57.8 5 44 31.06 +7.16 40 BtM«l ... 405 93.0 36.3 48.5 8.7 15.5 5 48 49.40 1.08 4 17. T4 5.48 47 Man . . . N.P. 34.3 47.4 0.5 14 0 96.8 5 61 0.60 8.45 •MM! ... 405 53.0 8.0 18.7 33.5 40.3 6 55 19.94 8.16 4 19.34 6.98 « Man . . P.P. 35.6 48.6 1.8 16.6 - • 5 87 1 .«) 7.74 •J> li. ... 1 . . 61.6 7.5 80.8 34.1 4A.O 6 1 90.78 9.90 4 18.80 5.54 U Man . . . N.P. 1.1.1 41.5 56.0 7.7 6 3-11 8.88 I-..-..H ... 405 36.6 49.0 9.3 15.0 80.5 6 8 8.18 +8.75 -490.49 +6.93 AT SANTIAGO DE CHILE. 21 DECEMBER 18, 1849— Continued. Remarks. Owing tn gradually-increasing! linzr in the atmosphere, the observations of to-night are not so valuable, a* those of last night. Both Mars and the comparing star move steadily, but the discs are badly defined— too indistinct. a Recorded 8. P. I Recorded 43.3t. at wire B. c There has evidently been a slip of tlie telescope in R. A. since observing Mare. Rejected. Rtsults. It. m. i. m. s. Rev. i n Mean S. F. . . Twelve transits . . . 4 3SI 27.63 — 4 12.386 . . . +8.279 . . . . =1 49.78 Mean N. P. . . Thirteen transit* . . . 4 4* 29.69 — 4 H.399 . . . +6.249 . . . . =9 1.80 h. in. Correction for chronometer at 4 39 . Correction for chronometer at 4 43 . s. . — 9.79 . . . — 9.',i H h. in. s. Santiago aid. time N. P .... 4 42 19 97 Inteival . . 10 9 06 A P. F. limbs in A. R. reduced to arc Variation of A R. in 10m. *«. . . . . . . 30.09 . . . —10.90 A N. S. limbs raicr. in rev, . . . Variation of declination in 10m. 9». . Corr. for diam. of micr. wirei . . Observed N. S. diameter . . . . 0.977=19.04 — 0.40 — 9.90 16.44 . . . 19.19 b. m. A • at 4 34 . n . 0.19 h. m. A o at 4 44 . 0.14 DECEMBER »O, 1 « !•>. £ Chronometer time of transit. Planet— Star. Thermometen. I Mean of wire*. Mfor ... t Object. A. B. C. D. K. Ad. R Air. Wet. j I7.iv Z HcT. "I - •• ev. [nchei. 1 BesMl ... 405 57.7 10.1 93.5 37.0 49.8 3 17 93.62 +9.13 98.947 65.8 54.3 1 Man . . . N.P. 9.8 16.0 99.5 43.0 55.8 396 99.49 5.51 +9 5.80 +3.62 Ther. att. 3o Besnl ... 405 47.1 0.5 13.6 97.0 39.8 3 98 13.60 9.95 61°. 6 4 Man . . . B.F. 53.9 6.5 19.7 33.0 45.8 3 37 19.64 5.45 9 6.01 4.50 Bar. red. to 32° F. 98.151 8 Beawl ... 405 59.5 5.7 19.0 39.5 45.9 3 39 18.98 5.92 8 Hun . . . N.P. 56.5 9.5 99.8 36.3 49.0 3 4899.89 9.45 9 3.84 3.47 7 Benel ... 405 43.9 58.8 9.9 93.3 X.» 3 50 9.84 6.30 8 Man . . . B.F. 47.8 1.0 14.8 97.6 40.5 359 14.34 1.78 9 4.50 4.59 9 Beuel ... 405 48.3 1.8 15.0 98.4 41.1 4 1 14.99 6.77 10 Man . . . N.P. 51.0 3.6 17.3 30.5 43.3 4 10 17.14 3.38 9 9.29 3.39 11 Be.sel ... 405 0.0 19.8 96.0 39.5 59.3 4 1996.19 7.94 19 Man . . . B.F. 9.5 15.8 99.0 49.5 55.9 4 91 29.00 9.80 9 9.88 4.44 13 Bessrl ... 405 0.9 13.5 96.8 40.3 53.0 4 23 26.76 7.61 14 Man . . . N.P. 1.0 14.3 97.5 40.8 53.5 4 39 97.49 4.13 9 0.66 3.48 15 Bcuel ... 405 11.3 94.6 38.0 51.4 4.9 4 34 37.90 7.77 16 Man . . . B.F. 19.5 98.0 39.0 59.5 5.5 4 43 39.10 3.48 9 1.20 4.99 17 Bnwl ... 405 50.3 3.8 17.0 30.5 43.9 4 46 16.96 8.90 18 Ma* . . . N.P. 49.5 9.8 16.1 99.5 42.3 4 55 16.04 4.89 8 59.08 3.31 19 Benel ... 405 36.8 50.0 3.9 16.5 99.3 4 58 3.16 8.59 204 Man . . . S.F. 36.0 49.5 9.5 16.0 98.7 5 7 9.54 4.97 8 59. 38 4.39 91 e BeaKl ... 405 35.0 48.5 0.8 14.5 97.5 5 9 1.96 9.01 99 Man . . . N.I'. • • 46.0 58.8 19.3 95.9 S 17 58.95 5.69 857.69 3.39 93 Beuel ... 405 49.0 55.3 8.5 99.0 34.5 S 90 8.96 9 35 94 Man . . . 8.F. 39.8 53.5 6.5 90.0 39.7 S 99 6.50 +5.08 +8 58.24 +4.27 22 OPPOSITION OF MARS, 1849-50, I>K< KMBKR at). lti««-roiillnnr. Corr. for i|j:iiii. of mier. wires . . Observed N. S. diameter . . b. m. A f at 6 99 A f at « » 0.895 = 17.44 + 0.80 — 9.90 16.04 0.07 i AT SANTIAGO DE CHILE. 23 DECEMBER HI, 1849. i Chronometer time of transit. Planet— Star. 'iiermometers. V Mean of wires Micr. Bar. f Object. A. B. C. D. E. An. A A Air. Wet. d 8. 8. s. 8. 8. h. m. s. Rev. m. s. Kev. Inc en. „ 0 m la Bessel ... 405 13.1 36.3 39.5 52.8 5.5 3 10 39.44 +6.63 28.212 66.5 55.1 2 Mars . . . N.P. 36.8 50.0 3.5 16.8 39.5 3 18 3.32 4.94 +723.88 —1.69 Th . ,. . • * »rT. in. •. • •••Ml . . . 405 49.0 55.0 8.5 92.3 35.1 3 59 8.58 • - M :' - 65.6 51.3 6. Man . . . N.P a. s 35.5 48.7 9.9 14.7 3 57 48.79 3.45 T5 40.14 -0.40 7 80 1 BMMl ... 405 Man . . . 8F. Bewel. . . 40fi 91.5 5.0 38.6 35.0 18.9 59.8 48.9 31.5 6.1 1.5 44.7 19.5 14.3 57.5 39.9 35946.10 4 531.38 4 8 6.04 4.90 9.68 4.45 543.98 1.59 Thrr. au. 68- .9 Bar. r. ,1. 1034-F. • M •ID Man . . . N.P. 18.9 31.3 44.5 58.0 10.6 4 13 44.59 4.06 538.48 0.39 11 Brattl ... 405 10.3 93.5 36.7 50.9 9.6 4 15 36.70 4.79 11 Man . . . 8.F. • • 9.5 16.0 99.5 49.9 4 91 15.93 3.35 539.93 1.44 u Be»Ml ... 405 6.5 90.0 33.0 46.7 59.0 4 9333.04 5.04 M Man . . . N.P. 44.7 58.0 11.1 94.6 37.9 499 11.19 4.57 5 38.06 0.47 19 Benel ... 405 39.6 46.0 59.0 19.5 95.3 4 30 59.08 5.39 16 Man . . . 8.F. 11.0 94.3 37.3 50.5 3.5 4 36 37.33 3.80 5 38.94 1.59 17 Brael ... 405 18.3 31.5 44.5 58.9 10.5 4 41 44.60 S.59 U Man ... N.P 84. 3 7.5 ao.e 34.0 46.6 4 47 90.60 5.97 536.00 0.95 19 Brwel ... 405 53.5 7.0 90.0 33.5 46.9 4 49 90.04 5.89 so Man . . . 8.F. 30.5 43.8 56.8 10.1 93.0 454 56.84 4.47 536.80 0.35 tl Brat] ... 405 30.5 43.6 56.9 10.1 93.1 45656.84 6.08 « Man . . . N.P. 5.5 18.5 31.6 44.8 57.5 5 9 31.58 5.74 5 34.74 0.34 si Bewel ... 405 99.8 43.0 56.9 9.5 93.3 5 4 56.16 6.46 Ml Man . . B.F. 5.3 18.5 31.8 45.3 58.0 5 10 31.78 5.06 5 35.63 1.40 9Sc Beawl ... 405 53.3 6.7 90.0 33.4 46.1 5 19 19.90 6.40 M Man . . . N.P. 97.9 40.9 53.5 7.0 19.6 5 17 53.50 6.09 533.60 0.33 •- BeaMl ... 405 37.8 51.0 4.9 17.8 30.3 5 90 4.99 6.67 •_•• Man . . . B.F. 19.3 95.5 38.7 59.5 5.0 59538.80 5.30 5 34.58 1.37 994 Btmel ... 405 35.3 48.5 1.6 t 98.0 5 99 1.63 6.74 30 Man . . . N P. 8.0 91.5 34.5 48.0 0.5 5 34 34.50 6.48 539.87 0.96 3\i BcMl ... 405 46.5 59.3 19.3 96.0 38.7 5 37 19.50 7.06 M Man . . . 8.F. 19.9 fcl.5 45.9 59.3 19.3 5 49 45.84 6.67 533.34 1.39 n BOM! ... 405 37.5 50.7 4.0 17.5 30.0 5 45 3.94 7.18 34 Man . . . NP. 8.5 ... 36.5 48.5 1.0 5 50 35.10 6.99 5 31.16 0.96 »t Brawl ... 405 1.5 15.0 98.3 41.5 54.5 5 599«.I6 7.54 X Man . . . 8.F. 34.0 47.5 0.5 14.0 96.8 558 0.56 6 97 5 39.40 1.97 17 Be«el . . 405 5.9 18.5 31.3 45.0 57.8 6 0 31.56 7.50 38 Mara . . . N.P. 95.5 40.5 9.0 15.5 98.0 6 6 9.10 7.99 5 30.54 0.91 at B«Ml ... 405 47.3 0.5 13.6 97.0 39.5 6 8 13.56 7.60 «/ Man . . . 8.F. 18.5 31.5 45.0 58.6 11.9 6 13 44.94 6.43 5 31.36 1.17 41 Bcwel ... 405 5.4 18.6 31.9 45.9 58.0 6 1531.89 7.87 «l Man . . . N.I'. 34.5 47.7 0.5 14.5 97.9 691 0.88 7.60 599.06 0.97 43 BMM! ... 405 15.:. »!• 49.0 55.5 8.3 6 93 49.09 7.86 44 Man . . . 8.F. 45.5 59.0 19.5 95.7 38.5 6 99 19.94 6.60 530.99 1.96 4ft BatMl ... 405 3.0 16.6 911.5 4.1.0 66.0 6 31 99.60 8.14 46 Man . . . N.P. 30.5 44.0 57.0 11.9 94.0 6 36 57.34 7.87 697.74 0.97 47 Bf«Kl ... 405 98.5 41.8 54.5 8.0 91.9 6 39 54.80 8.13 .- Man . . . B.F. 57.3 10.5 93.5 37.9 50.0 6 4593.70 +8.98 +598.90 -1.95 AT SANTIAGO DE CHILE. I>K.« F.nifK.i: i i. 1849— Continued. 25 Remarks. a Mars blazing and UI h fiood observations. c Seen through li:i/.'\ d Good measures. I- :i 1> e Objects unsteady; recorded 56.5s. at wire A. / Mars blazing and very unsteady during the remainder of the observations, the temperature of the air and dew-point falling rapidly. Mean N. P . Twelve transitit . Results. li. m. g. . 5 9 54.50 m. s. Rev. + 5 34.439 .... 0.322 . . i n . . —0 6 88 . 5 17 48.63 -+ 5 35.476 .... —1.361 . . . . —026.53 1). in. . . 12.53 b. m. 8. 5 9 41 97 . . —12.54 . . 5 17 36 09 7 54 12 A P F. limbs in A. R. reduced In arc . Variation of A. R. in 7m. 54» ;/ . . 15.S5 . . + 8.23 . . 23.78 AN. S. limbs micr. In rev Variation of declination in 7m. 54*. . . 1.039 = 20.25 + O.II a 20 h. m. A a at 5 7 . . 0.01 Observed N. S. diameter .... li. m. / A pat 5 15 . 18.16 n . 0.03 DECEMBER 33, 1849. e •_ Chronometer time of transit. Planet— Star. 'hermometers. | It .'i 11 • >' u : r' - Micr. Bar. £ Object. A. B. C. D. E. A o. A 4. Air. Wet. - m o l. - 8. 8. '• b.m.s. Rev. m. •. Rev. Inches. O O 1 Bemel ... 405 29.2 42.3 S5.5 9.0 91.8 3 6 55.56 +5.3J 28.186 67.7 56.5 1 Mara . . . N.P. 32.5 45.8 59.0 19.6 95.1 3 10 59.00 5.86 +4 3.44 +0.54 Cher. alt. 3 Beuel ... 405 2.5 16.0 29.0 42.5 55.1 3 13 29.02 5.86 65°.6 4 Mara . . . 8.F. 6.5 90.1 33.5 47.0 49.8 3 17 33.38 5.19 4 4.36 —0.67 Bar. red. o 32° F. 28.087 5 Besael ... 405 21.5 34.8 47.2 1.0 14.0 3 21 47.70 2.97 6 Man . . N.P. 93.2 36.6 50.1 3.5 15.6 3 95 49.80 3.45 4 2.10 +0.48 7 Beimel ... 405 34.5 47.8 1.0 14.3 96.8 3 98 0.88 3.13 8 Man . . . B.P. 36.8 51.0 4.0 17.7 30.5 3 32 4.00 2.50 4 3.12 —0.63 9 Berael ... 405 53.2 6.5 19.5 33.0 46.0 3 34 19.64 3.67 10 Mara . . . N.P. 54.8 8.1 21.3 34.5 47.3 338 21.20 4.14 4 1.56 +0.47 11 II.'--. 1 ... 405 24.1 37.5 50.6 4.0 16.8 3 49 50.60 4.37 19 Mara . . . 8.F. 96.5 39.5 52.8 6.1 18.8 3 48 52.74 3.78 4 2.14 —0.59 13 Br.sm.-I ... 405 33.3 46.5 59.7 13.0 95.5 3 48 59.60 4.56 14 M.ir.« . . . N.P. 34.5 47.0 0.0 13.4 96.0 3 53 0.18 4.96 4 0.58 +0.40 IS Benel ... 405 36.5 49.8 3.0 16.5 29.0 3 55 2.96 4.87 16 Man . . . 8. P. 37.8 51.0 4.3 17.5 30.8 3 59 4.98 4.31 4 1.32 —0.56 17 Bewel ... 405 30.8 44.3 57.5 10.8 93.5 4 0 57.38 5.07 18 Man . . . N.P. 30.3 43.5 57.0 10.3 93.0 4 4 56.82 5.53 3 59.44 +0.4« 19 Beincl ... 405 38.8 59.0 5.5 19.0 31.5 4 7 5.36 5.37 90 Mara . . . S. F. 39.5 52.8 5.8 19.3 32.0 4 11 5.88 4.81 4 0.53 —0.56 91 Benel ... 405 57.5 10.6 24.0 37.3 50.0 4 13 23.88 5.51 99 Mara . . . N.P. 56.0 M 99.5 36.0 48.7 4 17 22.50 6. 05 3 58.62 +0.54 93 Bemel ... 405 37.7 51.0 4.5 17.5 30.3 4 19 4.90 5.65 34 Mura . . . 8.F. 37.5 51.0 4.5 17.5 30.3 493 4.16 5.18 3 59.96 —0.47 95 Bemel ... 405 43.0 56.2 9.5 22.5 35.5 4 27 9.31 6.00 96 Mara ... N.P 41.0 54.2 7.2 90.5 33.5 4 31 7.28 6.43 357.94 +0.43 97 Bewel ... 405 13.8 27.0 40.2 53.5 6.0 432 40.10 6.16 98 Man . . . S.f. 12.3 95.5 38.7 52.0 5.0 1 4 36 3P.70 +.". +3 53.60 —0.45 26 OPPOSITION OF MARS. 1S49 50, I>K< KMHKH -43. lK4U-< ....linn. ,1. I ; ObjttL L IWMKMMWr lto« of traiutt. Mler. Planet— 8 tar. Bar. i .. ,,. ;.. H . A. B. f. 1). E. A*. A I. •. a. i. a. i. b. B. i. Rev. in. >. Rer. Inche,. • 1 • Bawd . . . 405 53.0 5.1 18.3 31.5 44.3 4 38 +6.41 9M.186 67.7 56.5 a* 31 •• 33 Mm . . . N.P. BeMel ... 406 Man . . . 8.F. B*MC| . . . 405 59.C ST. 3 38.5 9.0 19.6 10.5 51.8 15.0 95.8 93.5 4.8 96.5 39.3 37.0 18.3 41.9 59.0 4C.8 31.0 4 41 15.05 4 41 95.86 4 4893.63 4 50 4.88 6.66 6.59 6.09 6.76 +3 56.81 357.76 +0.45 —0.50 Tbf r. an. 65* .6 Bat. red. i. • 1 34 MM. . . . N.P. 34.5 4T.7 1.0 14.3 97.0 4 54 O.M 7.93 350.09 +0.47 * Bt«el ... 405 95.5 36.0 59.5 6.0 18.5 4 55 59.X 7.01 mt Mm . . • • • • 49.5 9.5 15.5 4 59 49.99 6.59 356.9S —0.49 37 B.-.M-I ... 405 8.5 91.8 35.0 48.0 1.0 . | :.: -< 7.16 » Man . . . N.P. 3.5 16.8 30.0 43.5 56.9 5 6 30.00 7.59 3 55 14 +0.43 V BCMCI ... 40} 39.1 S3.S 5.7 1>.9 39.0 5 8 5.70 7.39 40 Man . . . B.F. 34.8 48.5 1.7 15.0 98.0 5 19 1.60 6.81 3 55.90 —0.48 41 c Brael ... 405 91.0 34.5 47.3 0.8 13.5 5 13 47.49 7.51 49 Mara . . . N.P. 15.9 41.9 55.5 8.0 5 17 41.58 7.98 3 54.16 +0.47 : Beattl .... 405 40.5 53.7 7.1 90.3 33.9 5 21 6.96 3.95 44 Man . . . S.r. a-.. 5 48.7 9.0 15.5 595 1.98 3.49 3 55.03 -0.53 45 BMM| ... 405 38.0 51.9 4.5 1K.O 30.7 597 4.48 4.08 46 Man . . . N.P. 31.0 44.5 57.7 11.5 94.0 5 30 57.74 4.49 353.96 +0.41 47 Bc«rl ... 405 13.0 95.0 38.3 51.8 4.5 533 38.39 4.17 48 Man . . . S.F. 5.5 19.5 39.5 46.0 58.9 5 37 33.34 3.70 3 54.03 —0 47 4M Bmel ... 405 11.5 94.5 37.8 51.8 4.0 540 37.80 4.31 H Man . . . N.P. 3.3 16.7 30.3 43.8 56.5 5 44 30.19 4.81 359.33 +0.50 H BcaMl ... 405 45.9 5B.6 11.7 95.3 38.0 5 47 11.78 4.54 a Mara . . . 8.F. 38.5 59.0 5.0 18.5 31.0 5 51 5.00 3.98 353.94 -0.56 • Bewel ... 405 15.3 S8.6 41.7 55.3 8.0 5 12 41.78 4.50 M Man . . . N.P. 7.1 33.5 46.8 59.3 556 33.38 5.04 351.60 +0.46 55 Bewel ... 405 35.5 48.5 1.8 is.a 98.0 558 1.80 4.61 M Man . . . 8.P. 97.8 41.0 54.3 7.8 90.4 6 1 54.96 4.18 3 53.46 -0.43 BMM| ... 405 30.5 44.0 57.9 10.5 93.3 6 4 57.10 4.59 K Man . . . N.P. 91.9 34.6 47.8 1.9 13.9 6 847.74 5.14 350.64 +0.55 at Bcwel ... 405 59.6 6.0 10.9 33.5 45.3 6 10 19.19 4.69 eo Man . . . 8.K. 44.9 67.5 10.8 94.0 36.8 6 14 10.66 +4.95 +351.54 -fl.44 Remarks. A« HIP imam "f Man" wa« very (taring, and IK motion .\tr.-m. l> irregular, it wa« impooible to nteairare with much certainty until 4». 45m. '' II«'h i-\... -il. -in c Recorded H.0«. »t win- fl. "I Recorded 40.0«. nt wirr E. Mean N. P. . . FitVen traiiMU . . Meant*. P. . . Kilt. -.11 inmnt. . . h. in. h. m. >. . 4 41 97.55 . 4 47 45.46 8. . —13.96 Rtwltt. in. *. !.'' -. . +3 56.909 .... —0.471 . +3 57. 7*7 .... +0.599 . ... —0 9.18 ... —0 10.17 h. rn.n. . . . 4 41 14.99 '.•m lor rhr. dimnrtrr . . . h. m. ^ o nt 4 46 17. SI . 0.01 AT SANTIAGO DE CHILE. 27 DECEMBER 'M . 1849. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A I. Air. Wet. 9. 8. s. .. 8. b. m. 8. Rev. in. 8. Rev. Inches, j ° • 1 Besael ... 405 91.3 35.0 48.5 14.5 3 14 48.18 +3.75 28 193 71.1 57.8 1 Mars . . . N.P. 48.0 1.5 14.5 98.0 40.8 3 17 14.56 4.74 +2 26.38 +0.99 3 4 5 »i'"i.-l ... 405 Mara . . . S.f. BcMel ... 405 13.5 40.0 97.0 97.8 53.5 40.2 41.0 6.7 53.3 54.5 90.9 6.8 7.0 33.5 19.5 3 19 40.76 3 22 6.78 3 99 53.34 4.01 3.91 4.40 2 26.02 — 0.10 Ther. att. 70° .2 Bar. red. to 32° F. 28.080 6 Man . . . N.P. 51.2 4.5 17.5 31.0 43.6 3 39 17.56 5.33 234.22 +0.93 7 Beoel ... 405 36.5 49.8 3.0 16.3 39.0 3 34 2.92 4.61 8 Man . . . S.F. 1.5 15.0 38.2 41.5 54.7 3 3628.18 4.45 235.26 —0.16 9 Bessel ... 405 17.7 31.2 44.0 57.0 9.7 3 38 43.92 4.78 10 Man . . . N.P. 41.0 54.3 7.5 21.0 33.7 3 41 7.50 5.75 9 23.58 +0.97 11 II. — I ... 405 39.0 59.9 5.3 18.7 31.5 3 43 5.34 5.02 13 Mare . . . S.F. 16.8 39.8 43.3 56.0 3 4599.85 4.93 9 94.51 —0.10 13 Bexel ... 405 96.5 39.8 53.8 6.0 18.7 3 47 52.76 5.19 14 Man . . . N P. 49.3 9.5 15.6 99.0 41.8 3 50 15.61 6.08 9 22.88 +0.89 15 Beanel ... 405 55.1 8.2 31.3 34.5 47.5 3 53 21 .32 5.35 16 Man . . . S.F. 18.8 32.0 45.3 58.7 11.5 354 45.26 5.28 9 93.94 -0.07 17 a Bessel ... 405 17.3 30.5 43.7 57.0 10.5 3 57 43.30 5.63 18 Man . . . N.P. 39.6 52.6 5.7 19.3 32.0 4 0 5.84 6.53 2 22.04 +0.89 19 Beoel ... 405 0.5 13.5 36.8 40.3 52.5 4 10 26.79 2.99 90 Man . . . S.F. S3.0 36.9 49.2 9.7 15.0 4 19 49.22 3.89 2 23.50 —0.10 91 Be«<«1 ... 405 39.8 59.5 18.5 31.5 4 15 5.56 3.76 99 Man . . . N.P. 0.5 14.0 27.0 40.5 53.0 4 17 97.00 4.76 2 91.44 +1.00 33 •21 Bewel ... 405 Man . . . S.F. 97.0 40.5 1.0 0.2 53.7 14.0 13.3 6.8 97.5 95.5 19.5 40.2 39.3 4 19 53.50 4 92 11. or, 4 24 13.21 4.90 4.80 4.13 2 30.55 —0.10 Beuel ... 405 46.9 96 Mare . . . N.P. 7.9 30.4 33.5 46.8 59.5 4 96 33.48 5.09 2 20.24 +0.96 27 H. —.•! ... 405 3.0 16.3 29.3 42.5 55.5 4 28 29.28 4.98 98 Mare . . . H.F. 31.0 37.2 50. 5. 4.0 16.5 4 30 50.44 4.23 221.16 —0.06 29 Bewel . . 405 52.9 5.5 18.5 39.0 44.8 4 32 18.60 4.43 30 Mas . . . N.P. . . 25.9 38.9 51.8 4.5 4 34 38.30 5.38 2 19.70 +0.95 31 Besscl ... 405 9.5 15.8 29.0 11 5 55.3 4 31 99.03 4.62 • Man . . S.F. 33.4 36.5 49.6 3.0 1.-..7 4 38 49.64 4.53 9 30.69 —0.10 33 ll<-~u-\ ... 405 18.7 31.7 «.o 57.8 4 40 31.74 4.71 .1 Mjin . . . N.P. 37.5 50.8 4.9 17.0 4 42 50.75 5.60 9 19.01 +0.89 35 Bei.rl ... 405 30.8 43.8 57.0 10.5 93.9 4 44 57.06 4.89 36 Man . . . 8.P. 50.5 4.0 17.0 30.5 43.9 4 47 17.04 4.80 2 19.98 —0.09 37 BesMl' ... 405 13.0 95.3 38.9 51.5 4.3 4 52 3?. 24 5.15 38 Man . . N.P. •30.9 43.9 56.5 M 99.5 4 54 56.44 6.06 2 18.20 +0.91 39 Beaael ... 405 99.0 49.5 56.0 9.0 82. 0 4 56 55.70 5.36 40 Man . . . ri.F. 48.3 1.5 14.7 98.3 41.0 4 59 14.76 5.98 2 19.06 —0.08 41 Bewel ... 405 17.5 30.6 43.6 10.0 5 2 43.78 5.55 49 Man . . . N.P. 34.5 48.3 1.4 14.5 97.3 5 5 1.13 6.45 2 17.40 +0.90 43 Be»ael ... 405 56.8 10.2 33.3 36.7 49.5 5 7 93.98 5.57 44 Mara . . . U.K. 15.3 98.5 41.5 55.0 8.0 5 9 41.66 5.51 2.18.38 —0.06 45 BCMC| ... 405 15.5 38.5 41.7 55.7 8.0 5 11 41.88 5.80 46 MdM . . . N.P. 3J.:, 45.5 58.7 95.0 5 13 58.78 +8.66 : +2 16.90 | II. rll 28 OPPOSITION OF MABS, 1849-50, I>K< KMHKK 94, lt»4'.l « nnllnurd. 1 i Object. ( liruneweler lime of iraiwii. Mean of wire*. Micr. Plinrt— Star. Bar. A. B. 0. D. E. A a. At Air. Wet. a. a. a. a, a, b. m. •. Re». in - Rev. Inch™. • • a Brad . . . 405 17.6 30.5 43.6 57.9 10.0 5 18 43.76 +6.04 B.1H 71.1 S7.8 48 Man . . . 8.F. 35.9 48.5 1.5 15.0 97.8 591 1.60 S.99 +9 17.84 —0.05 • so 51 Bewel ... 406 Man . . . M.P. Boa*! ... 405 48.8 5.0 6.8 9.0 18.0 90.1 15.3 31.9 33.9 98.5 41.5 46.8 41.9 57.9 59.9 593 15.1H 5 35 31.1- 597 33.99 6.14 7.13 6.96 9.16.0* +0.99 Ther. alt Bar. red. lo 33' P. H.OM 59 Mar. . . . 8.F. 37.S 60.5 3.5 16.4 53950.38 6.19 3 17.06 -4.07 a Bevel ... 405 51.8 5.0 18.9 31.7 44.5 5 32 18.94 6.97 M Man . . . N.P. 7.8 90.5 33.5 47.0 59.7 53433.58 7.90 3 15.34 +0.93 55 Band ... 405 .16.3 49.9 9.5 16.0 98.7 5 41 9.54 6.47 M Man . . . B.F. 58. 1 5.9 18.5 33.0 44.8 5 43 18.53 6.38 3 15.98 —0.09 BeaMl ... 405 37.0 50.1 3.3 16.5 99.3 545 3.94 6.53 • Mara . . . N.P. 51.0 4.5 17.7 31.1 43.7 5 47 17.60 7.43 3 14.36 +0.91 • Bowl ... 405 9.3 15.5 99.0 43.3 55.0 5 49 28.82 6.68 60 Mara . . . 8.F. 16.0 31.1 44.5 57.7 10.5 5 51 44.36 6.59 9 15.54 —0.09 (1 Be*ad ... 405 13.3 96.5 39.7 53.9 6.0 5 53 38.74 . -: 89 Man . . . N.P. 97.3 40.5 53.7 7.0 90.0 5 55 53.75 7.79 9 14.01 +0.97 03 B.-«wl ... 405 59.0 59 18.9 31.6 44.6 5 58 18.33 6.99 64 Man . . . 8.F. 6.8 90.0 33.4 46.8 59.5 6 033.30 6.95 3 14.98 —0.04 85 Bnnel ... 405 41.3 54.5 7.5 90.6 33.8 6 3 7.53 6.99 68 Mara . . . N.P. 54.5 7.5 90.6 34.3 47.0 6 5 20.76 7.98 9 13.94 +0.99 67 Bewel ... 405 10.0 93.8 36.3 49.8 3.5 6 836.36 7.87 68 Man . . . 8.F. 34.3 37.5 50.5 4.3 16.9 6 10 50.68 7.77 9 14.33 —0.10 Bewl ... 405 90.5 34.0 47.5 0.6 13.5 6 IS 47.33 7.93 70* Mara . . . N.P. 33.5 46.8 59.5 13.0 95.8 6 14 59.73 8.87 9 13.50 +0.94 71 B«««l ... 405 10.0 33.0 36.5 50.0 3.8 6 17 36.46 0.97 79 Mara . . . 8.F. 33.5 37.0 50.S 3.5 16.5 6 19 50.14 0.83 3 13.68 —0.15 73 BtMcl ... 405 49.3 55.6 9.0 99.0 35.0 694 8.78 0.93 74 Mara . . . N.P. 59.4 7.8 90.8 31.9 47.0 6 36 30.84 1.93 3 13.06 +0.99 » Bowl . . . 405 19.1 33.5 45.0 58.5 11.5 6 98 45.33 0.98 76 Mara . . . 8.F. 31.7 45.0 58.1 11.5 94.3 6 3058.19 0.93 9 13.80 —0.05 77 Bowl . . . 405 41.5 54.5 6.0 91.0 34.0 6 33 7.80 u 78 Man . . . N.I'. 53.5 5.8 18.8 32.3 45.0 6 35 18.88 1.97 3 11.08 +0.99 79 Bcwl ... 406 94.5 37.5 50.5 4.0 17.0 6 37 ."0.70 0.78 - Mara . . . B.F. *M 49.8 3.0 16.0 91.0 6 40 3.86 +0.71 +8 19.16 -0.07 Remarks. '•erviiiorw of 10 night an- very generall) ((oort, both objeeu Iwliig wi II deliueil ami moderately »ieady throughout Hie » h..|. |» -nod. Time ba> bn-n ccHuUrnMi: elMtii;i- in lln- |ili>»leiil -i Hie plnliel unee ill.: \". ill, lln- iliirk reil .-mil sr.-i'Mi-li "Inn I'" '"" "I- I'eii'K ol ulfiw decided dMluctne**. 80 clear and uiiv»i)iii|| in the anncuiilicre, thai there ii|.|»-<.r< i,u liniil lo lln iiiagi.il) ing |«»ver whieh in;i) lie nuplicd. Beeorded HJt. at win E. I, Miei.Hii.-i. i i.. -..rded +7.87 rev. Mean N. P. Mean S. F. Twi nl) Irnniili , 'l'\M III) II. Ill-It - . /.Y.W///.--. li. III. B. 4 aa 5.17 5 4 33.64 III. N. + 9 18.030 + « 18.817 li. \. + 0.949 — 0.086 = 0 19.36 0 1.68 AT SANTIAGO DE CHILE. 29 DECEMBER 34, 1849— Continued. Results — Continued. h. m. ft. 13 93 h. m. s. 4 58 51 .24 13 93 5 4 9 91 5 18 67 A P. F. limbs in A. R. reduced to arc . . , H 11.80 + 5.36 A N. S. limbs micr. in rev 1.1 £8 = 90.04 + 0.02 Observed P. F. diameter , h. m. A a at 4 58 . 17.16 0.03 Corr. for diam. of micr. wires . . . Observed N. S. diameter h. m. A o at 5 3 . — 2.20 17.86 . ii.uii DECEMBER 25, 1849. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. P/anet— Star. Bar. Thermometers. A. B. C. D. E. A a. A. 8. •. i. b. m. s. Bev. g. Rev. Inches. O « 1 Beswl ... 405 3.5 17.2 30.1 43.5 . 339 30.13 +3.-JS 28.093 73.2 57.8 a Man . . . N.P. . . 4.5 17.8 31.0 43.8 3 40 17.65 4.95 +47.59 +1.03 3 4 5 Begsel ... 405 Man . . . 8.F. Bessel ... 405 S4.9 13.4 30.7 38.0 96.5 44.0 51.3 39.5 57.2 4.6 53.2 10.5 6.0 349 51.95 3 43 39.73 3 45 57.15 3.49 3.40 3.59 48.47 —0.09 Ther. att. 72.2° Bar. red. to 33° F 97.904 0 Man . . . N.P. 17.7 31.0 44.2 57.7 10.5 3 46 44.93 4.49 47.07 +0.90 7 Betsel ... 405 16.5 30.0 43.0 56.5 3 48 43.05 3.74 8 Man . . . 8.F. 5.0 18.0 31.0 44.S 57.2 3 49 31.14 3.73 48.09 —0.01 9 | Bemel ... 405 38.1 51.5 4.5 17.5 3 50 4.45 3.79 10 Mara . . . N.P. 94.8 38.0 51.2 4.5 17.7 3 50 51.23 4.78 46.77 +0.99 11 Beiwel ... 405 7.5 90.5 33.8 47.0 . 3 53 33.75 3.98 1-J Mars . . . 8.F. 55.0 8.5 91.5 35.0 47.5 3 54 21.50 3.93 47.75 —0.05 13 Bessel ... 405 53.5 7.0 90.0 33.5 3 55 90.05 4.03 11 Mara . . . N.P. 40.0 53.5 6.5 90.9 32.8 356 6.60 5.00 46.54 +0.98 15 Fl.'-,.-l . . 405 6.8 90.0 33.9 46.5 4 0 33.18 4.21 16 Mara . . . 8.F. 54.0 7.5 90.5 34.0 46.8 4 1 90.56 4.16 47.38 —0.05 17 newel ... 405 57.0 . 93.2 37.0 . 4 9 93.48 4.18 1)4 Man . . . N.'P. • • 56.9 9.0 92.5 35.5 4 3 9.18 5.26 45.70 +1.08 I9o Benel ... 405 47.5 0.2 13.2 36 5 4 15 13.40 1.30 90 Mars . . . 8.F. • • 46.9 59.5 19.8 25.5 4 16 59.38 1.99 45.98 -0.01 216 11. — 1 ... 405 51.0 4.3 17.5 30.7 4 18 17.43 1.41 22 Mars . . . N.P. 49.2 3.3 15.5 28.4 4 19 2.23 2.26 44.80 +0.85 93 Besscl ... 405 W.I 99.5 42.3 56.9 4 28 43.63 1.30 24 Man . . . B.F. • • 14.3 28.0 41.5 54.2 4 29 97.90 1.34 45.97 0.04 25 Renel ... 405 7.0 20.5 33.3 g 4 31 33.48 1.34 96 Man . . . N.P. 51.2 4.3 17.3 31.0 43.5 4 32 17.46 2.35 43.98 1.01 • Bewel ... 405 42.5 55.5 8.9 21.5 4 33 8.65 1.50 M Man . . . 8.F. 40.8 54.0 7.3 20.0 4 33 53.88 1.50 45.23 ±0.00 99 Brssel . . . 405 3.5 16.5 99.5 4 37 29.71 1.64 :«> Mars . . N.P. 0.2 13.5 96.7 39.3 4 38 13.30 2.59 43.59 +0.88 31 Bessel ... 405 49.8 55.8 9.5 92.8 4 39 9.98 1.69 32 Mara . . . H.F. • • 40.1 53.3 6.8 19.3 4 39 53.95 + 1.63 +43.97 —0.06 30 OPPOSITION OF MASS, 1849-50, III < KMIIKK »». 1H4B- ( ..i.ll MM. ,1 . 1 Chranonwin time of tun.ll. Planet— Star. :.• » | i a Weanof wiri-K Micr. R_ -: Object. A. B. C. 0. E. Ac. A A oar. Air. IV., i ~ i • a. a. a. a. a. h. m. ». Rrv. a. Ker. ln.-h.-i. • • 33 Be«Ml ... MS I8.S 31.5 44.8 58.0 4 49 44.75 + 1.68 ... ,.,., 73.9 57.8 M MM. . . . N.P. 14.5 97.5 41.0 54.3 4 43 97.70 •.• +0.94 Thrr. alt. • Bond . . . 405 19.0 9S.9 38.5 5J.O 4 4538.73 1.81 7-J ,'J M Mara . . . 8.F. . . t.9 • -j 36.0 48.5 4 4699.31 1.77 43.69 -0.04 Bur. r. ,1. to • r 97.904 J7 Bwd . . 405 59.0 5.0 18.3 31.5 . . 4 47 18.35 1.87 M Mara . . . N.P. • • 47.6 i.e 13.5 96.7 4 49 0.56 9.83 • • +0.96 3V Bewri . . . 405 16.5 99.8 43.0 56.5 . f 4 5043.00 1.96 40 Man . . . 8.F. • • 13.9 96.8 40.9 53.0 4 51 36.68 1.89 43.68 -0.09 41 Bowl ... 405 13.5 96.5 40.0 53.0 . . 4 53 39.80 1 96 4ft Man . . . S.F. • • 10.9 33.5 37.0 49.6 4 54 33.45 1.93 43.65 —0.06 a Beoel ... 405 10.0 93.0 36.9 49 8 , . 5 036.X 9.06 44 Man . . . 8F. • • 6.3 19.5 33.5 «5.7 5 1 19.38 9.08 43.08 +0.03 ; Bevel ... 405 58.5 6.0 19.0 39.5 5 9 19.05 9.90 « Man . . . N.P. • • 47.5 0.8 14.9 96.8 5 3 0.70 3.11 41.65 0.91 47 BMM! . . 405 S4.5 7.8 31.0 . . 5 1390.98 9.39 i- Man . . . B.F. 49.7 3.9 16.8 99.3 5 14 3.13 9.45 43.15 0.06 • B*Ml ... 405 4.7 18.0 31.9 44.5 t 5 16 31.15 9.45 soc Man . . . 8.F. • • 0.5 13.9 35.5 38.9 5 17 19.73 9.47 41.58 +0.03 51 Bend ... 405 43.0 55.9 8.3 91.5 t • 5 18 8.30 9.57 Man . . . B.F. . . 37.9 50.9 3.5 16.3 5 1850.18 9.54 41.88 —0.03 I Bnael ... 405 6.0 13.3 36. 5 40.0 . . 5 91 96.50 2.66 I Man . . . 8.P. • • 53.5 6.5 20.0 33.0 5 93 6.63 3.57 40.13 +0.01 ss B«M| ... 405 13.7 96.5 39.5 I 53.5 , 596 39.85 9.74 M Man . . . B.F. • • 6.3 91.5 34.7 47.5 597 91.38 9.71 41 53 -0.03 97 Bowl ... 405 58.0 S.5 18.5 39.1 t 5 98 18.58 9.79 .- Mara . . . B.F. 46.9 59.7 13.0 95.8 5 99 59.55 9.71 40.97 Q_0J Me Bnttl ... 405 31.5 47.5 1.0 14.5 533 0.88 9.75 •• Man . . . N.P. . . 97.5 40.5 54.9 6.5 5 3340.55 3.75 40.07 +1.00 1 n BWM! . . . 405 15.5 99.3 49.5 58.5 5 34 43.50 9.81 « Man . . . N.P. . . 9.5 995 3S.9 48.6 5 35 9). 50 3.83 40.00 +1.01 B.-«H ... 405 46.S 53.5 7.0 90.5 . . 5 38 6.93 9.98 M Man . . . 8.F. • • 31.5 47.5 1.0 13.6 5 36 47.53 9.91 40.60 —0.07 as BMMl ... 405 51.0 4.3 17.5 31.0 . 5 39 17.50 9.87 « Man . . . N.P. • • 43.5 56.5 10.9 93.5 5 39 56.55 3.88 • M -,1.01 <7 BMMl ... 405 49.5 55.5 9.0 ».o 5 41 8.80 3.07 66 Man . . XF. 36.8 49.0 9.3 15.5 5 41 49.30 3.04 40.50 —0.03 6* Bottl ... 405 9.5 16.0 99.5 49.8 , , 5 45 99.45 3.78 7» Man . . . N.P. 55.9 8.9 91.5 34.9 5 46 8.15 4.71 38.70 + 0.93 71 Bi-Ml . . 405 0.5 1S.6 96.7 t t f 5 SO 96.81 3.46 n Man . . . H.F. 53.5 90.0 33.5 5 51 6.59 3.44 39.71 —0.03 7* BWMl . . 405 aa.s 40.0 53.9 6.5 m t 5 59 53.10 3.51 74 Man . . . N.P. • • 18.9 31.9 44.5 57.3 5 S3 31.18 4.45 :- M +0.94 75 Brw-l ... 405 0.9 13.6 93.8 40.9 . 5 55 96. 73 3.56 T« M«n . . . H.K. • • Sf.8 • 19.5 33.3 6 56 6.03 3.53 . • • -0.03 77 n.-«-l . . . 40:, 18.0 31.0 44.3 57.5 . 44.95 3.73 76 Man . . N P • •M 35.5 48.3 55893.13 + 4.66 AT SANTIAGO DE CHILE. 31 DECEMBER 35, 1 - 1 •' < ,,m inn. .1. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A* Air. Wet. H. s. 8. s. "'. b. m. s. Rev. 8. Rev. Inches. • 0 79 H Bessel ... 405 Mara . . . S.F. 37.5 51.0 30.0 4.3 43.5 17.8 56.8 9.5 6 0 4.20 6 0 43.33 +3.69 3.67 +39.13 —0.02 28.023 73.2 57.8 H 82 -.! Bessel ... 405 Mara . . . N.P. Bessel ... 405 8.5 38.8 21.5 59.2 52.0 34.8 12.2 5.1 48.2 25.2 18.5 38.5 6 2 34.80 6 3 19.15 6 4 5 15 3.60 4.59 3.75 37.35 +0.99 Ther. att. 72° .2 Bar. red. to32°F. 27.904 84 Mars . . . S.F. • • 30.8 44.0 57.0 10.0 6 4 43.83 3.75 38.68 ±0.00 85 Bessel ... 405 59.8 13.2 96.8 40.5 t 6 6 26.63 3.95 86 Man . . . VI'. | . . 4.5 17.8 30.5 6 7 4.39 4.95 37.76 + 1.00 87 Bessel ... 405 55.5 8.5 21.6 . 6 9 21.74 3.79 88 Mara . . . B.F. . . 46.5 59.5 13.3 96.0 6 9 59.70 3.79 37.96 ±0.00 89 Bcstel ... 405 6.3 19.5 32.0 46.0 t t 6 12 32.49 3.59 90 Mars . . . N.P. 56.3 9.3 93.5 35.5 6 13 9.25 +4.60 +36.76 +1.01 Remarks. A tolerably good night for observation*, occasionally varied by sudden changes in the atmospheric condition, which made both objects appear to nove by jumps. The measures, however, are pretty fair. a Recorded 36. 5§. at wire I). «/ Recorded N. P. — omitted in results, ft Recorded 59. 3*. at wire B. e Recorded 56. Of. at wire C. c Micrometer recorded -f-3.47 rev. Mean N. P. . . Twenty transits . . Mean 8. F. . . Twenty-four transits . h. m. h. m. K. 5 0 34.88 5 2 58.39 s. 14 63 Results. s. Rev. +41.927 .... +0.967 . +42.923 .... —0.016 . . . . =0 18.91 . . =0 0.31 h. m. tt. . .5 0 20 23 14 63 ...52 43.76 . . . 2 23.51 A P. F. limbs in A. R. reduced to arc . . 14.94 . + 9.35 A \. 8. limbs micr. in rev. . . . . . 0.986 = 19.33 . . + 0.00 Observed P. F. diameter h. m. A o a1, 5 0 17.99 . 0.02 din . tor diameter of micr. wires . Observed N. 8. diameter h. m. A o at 5 2 . . . — 2.20 . . 17.02 ii . 0.00 DECEMBER )I6, 184V9. i Chronometer time of transit. Planet— Star. Thermometers. i Object. A. B. C. D. E. A a. A A Air. Wet. s - - s. •• '• h. m. s. Rev. s. Rev. Inches. O O 1 Mars . . . N.P. 37.8 SI .9 17.8 3 38 4.34 +3.78 28.034 71.2 58.4 2 Bessel ... 405 37.5 50.5 4.0 16. b 3 88 50.58 3.18 —46.24 +0.60 Ther. att. 3 Man . . . S.F. 21.1 34.5 47.5 1.0 3 40 47.58 2.96 67°. 5 4 Bessel ... 405 30.5 32.5 46.0 59.0 3 41 32.88 3.38 45.30 —0.42 It.ir. r.'.l. to 32° F. 27.9-29 5 Mars . . . N.P. S7.8 11.3 34.3 3 4224.31 4.16 6 Bessel ... 405 44.5 57.5 11.0 34.0 36.8 3 43 10.76 + 3.53 —46.45 +0.63 OPPOSITION OF MARS, 1849-50, DF < 1 Mil Kit -•' . 1-1'' < ..„ Innrd. 1 ( •hmniHB IT tine of tiarui 1. \1 . ' A ' - Mlcr. Planri- -Star. Bar. Thrnua k Object. A. B. C. D. E. Aa. A*. Air. Wet. . 4 i. • • • • i i. • ft KCT. i . 7 Mm . . . 8.P. 38.0 51.9 4.5 17.7 t t 3 45 4.40 +3.95 96034 71.9 58.4 » Be*Ml . . . 405 . . 37.0 50.0 3.1 . . 3 45 50.01 3.70 —45.81 -0.45 9 10 11 M»r« . . . N P. B«*rl ... 405 Mar. . . . 8.F. 9.5 44.8 15.8 S.5 58.3 98.8 15.8 11.5 49.0 99.9 95.0 49.0 3 49 98.83 3 50 15.75 351 11.43 4.48 3.81 3.46 46.92 +0.87 Th«r. ait 67-.S Bar. red. 10 W f -.- 19 B«M| ... 405 31.0 44.0 57.S 10.6 93.5 3 51 57.96 3.83 45.83 -0.37 13 Mar. . . . N.P. 13.7 97.9 40.3 53.8 3 54 40.98 4.69 Ha Band ... 405 1.5 14.0 97.8 41.0 53.5 3 55 97.56 3.97 47.98 +0.79 IS Mara . . . B.F. 50.0 1-J.3 25.3 39.0 . 3 58 25.43 3.95 II Bcwel . . 405 45.5 58.5 11. 8 95.0 37.8 3 59 11.79 4.33 • | • —0.38 17 Man . . . M.P. 45.9 58.5 11.8 95.3 t f 4 9 11.73 5.16 18 BOK! ... 405 33.9 46.5 59.8 13.9 95.8 4 9 59.70 4.48 47.97 +0.68 l» Mara . . . 8.P. 94.8 38.0 51.0 4.5 4 551.13 4.21 90 Bwel . . . 405 • • 94.5 38.0 51.5 4.3 4 6 37.95 4.59 • -• -0.31 91 Mar. . . . N.P. 59.3 5.5 18.5 33.0 , 4 9 18.63 5.37 99 BetteJ ... 405 40.5 53.7 6.8 90.3 33.0 4 8 6.88 4.80 48.33 +0.57 93 M«i» . . . B.F. 18.9 32.5 45.7 59.0 . 4 11 45.65 4.56 94 Bond ... 405 8.5 19.8 33.0 46.0 59.0 4 19 39.86 4.99 47.91 —0.43 25i Mir. . . . N.P 49.8 58.9 9.5 99.5 t 4 13 9.30 5.66 98 Bevel ... 405 31.8 45.0 58.0 11.5 24.9 4 1358.10 5.01 48.80 +0.65 97c Man . . . 8.F. 90.5 33.7 48.8 0.0 , 4 16 48.80 4.70 98 Bend ... 405 7.8 91.9 34.3 47.5 0.9 4 17 34.20 5.14 47.40 -0.44 39.1 Man . . . N.P. 1.0 14.0 97.9 40.5 r 4 19 97.93 5.84 30 <• B*«l ... 405 50.0 16.5 99.6 42.3 4 30 16.31 5.15 49.08 +0.69 3I/ Mare . . . g.F. 58.3 11.5 94.8 38.3 , . 4 21 94.78 4.91 39 Bewel ... 405 40.5 59.8 13.0 96.9 39.0 4 99 12.90 5.99 48.19 —0.38 33 Man . . N.p. 98.1 30.3 59.5 6.0 . 4 94 58.53 5.99 34 Bend ... 405 15.5 990 49.0 55.3 8.0 4 95 41.96 5.J8 49.43 +0.67 Xf Man . . . 8F. 17.9 30.5 43.8 57.0 . . 4 97 43.86 5.01 at Bervel . . . 405 5.7 19.0 3i.3 45.5 58.3 49839.16 5.43 48.48 -0.49 37* Mar. . . . N.P. 17.5 30.8 44.0 57.9 4 30 43.93 6.13 38 Bemct ... 405 7.3 90 5 33.5 47.0 59.7 4 31 33.60 6.53 49.67 +0.60 10 Mar. . . . er. 9.0 15.9 98.3 41.5 t f 4 33 28.30 5.31 40 B«Ml . . . 4U5 50.8 39 17.1 30.9 43.9 4 34 17.04 5.74 48.74 -0.43 41 Man . . . N.P. 43.8 *U A 57.5 10.9 93.5 4 35 10.30 6.46 Son »]J 'i t ' 43 B«a»el . . . 405 Mara . . . S.F. •H.U 93.0 35.9 48.5 1.7 4 38 48.40 . OU 5.53 .14 +U.W 44 Beaacl ... 405 11.0 94.9 37.a 50.8 3.5 4 39 37.34 5.89 48.94 -0.38 45 Mar. . . . N p. 30.3 59.7 6.0 . 4 41 59.55 6.64 48 BetMl ... 405 18.6 as 9 43.9 58.5 9.9 4 49 43.08 6.09 50.53 +0.69 47 Man . . . 8.F. 41.5 54.5 7.5 . , , 4 48 7.71 6.84 40 Beaad ... 405 31.0 44.3 57.9 10.6 93.5 4 48 57.39 6.17 49.61 -4.33 40 Man ... NP. 48.4 55.5 8.8 99.0 f f 4 50 8.73 6.94 80 ••Hal ... 405 33.5 46.8 0.0 13.3 98.0 4 60 69.9* 6.94 51.19 +0.70 51 Mara . . . 8.F. 18.2 9>.5 49.5 58.0 t t 4 S3 49.60 5.99 St B-d. • ' «" 8.5 19.5 33.0 46.9 59.0 4 54 39.84 +6.34 —50.94 —0.35 AT SANTIAGO DE CHILE. 33 DECEMBER 26, Is Itt-r'nutlminl. § • Chronometer time of transit. Plimct— Star. Thermometers. B Mean nf wire* Micr. Bar. & £ Object. A. B. C. D. E. A a. A A Air. Wet. £ 0 8. 8. 8. a. a. • li. m. B. Rev. s. Rev. Inches. • 0 Z 53 A Mars . . . N.P. 48.5 1.5 14.8 28.3 4 55 14.83 +7.04 28.038 71.2 58.2 54 Besscl ... 405 40.0 5J.5 6.5 90.0 32.5 4 56 6.50 6.41 -51.67 +0.63 Ther. att. 55 Mara . . . S.F. 34.2 47.5 0.5 14.0 4 58 0.60 6.19 67'.5 I Vessel ... 405 24.5 37.5 51.0 4.3 17.0 4 58 5U.86 6.50 50.26 —0.31 Bar. red. to 32° F. • 27.929 57 Mare . . . N.P. 42.5 55.8 9.2 22.5 . . 5 5 9.05 7.38 58 B(-dsel ... 405 34.8 48.0 1.2 14.8 27.5 5 6 1.26 6.74 52.21 +0.64 59 Mara ... . S.F. 0.0 13.2 26.2 39.7 . 5 826.33 6.45 60 Bessel ... 405 51.0 4.2 17.5 30.7 43.5 5 9 17.38 6.85 51.05 —0.40 61 Mara . . . N.P. 29.5 43.0 56.3 5 10 56.14 7.56 62 Bowl ... 405 22.5 35.3 48.7 2.5 15.0 5 11 48.76 6.96 52/62 +0.60 63 Mare "... S.F. 2.1 15.5 28.5 42.2 5 13 28.63 6.64 64 Bcsael ... 405 53.5 6.5 90.0 33.5 46.2 5 14 19.94 6.99 51.13 —0.35 65 Mara . . . N.P. 23.5 37.0 50.3 3.7 t 5 IB 50.18 7.69 66 He**! ... 405 16.8 30.0 43.3 56.6 9.3 5 17 43.20 7.04 53.02 +0.65 67 Mare ... S.F 57.0 10.5 23.5 37.0 5 18 23.55 6.76 68 Brawl ... 405 49.0 2.0 15.3 96.8 41.5 5 19 15.32 7.18 51.77 —0.42 69 Mara . . . N.P. 37.5 50.6 4.0 17.5 5 21 3.95 3.03 70 Bemel ... 405 30.6 44.0 57.9 10.5 23.2 5 21 57.10 2.33 53.15 +0.70 71 Mara . . . S.F. 3). 3 47.5 0.8 14 0 5 84 0.70 2.04 72 Berne] ... 405 96.5 39.8 53.0 6.5 19.0 5 24 52.96 2.43 52.26 -0.39 73 Mars . . . N.P. 32.8 45.8 59.1 12.5 5 28 59.10 3.87 74 Beseel ... 405 26.5 39.7 52.8 6.9 19.2 5 29 52.88 3.26 53.78 +0.61 75 Mare . . . S.P. 30.6 44.0 56.5 5 31 56.91 2.96 76 Weasel ... 405 23.4 36.3 49.7 3.3 16.0 5 32 49.74 3.34 52.83 —0.38 77 Mars . . . V.P. 0.2 13.3 26.5 40.0 5 34 26.55 3.94 78 Beasel ... 405 64.9 7.5 20.5 34.3 47.0 5 35 20.70 3.41 54.15 +0.53 79 Mare . . . S.F. 91.0 34.3 47.9 0.5 > 5 36 47.30 3.09 Beuel ... 405 14.0 97.0 40.2 53.8 6.5 5 37 40.30 3.49 53.00 —0.40 81 Mare . . . N.P. 45.* 58.9 11.3 24.8 5 3P 11.38 4.13 82 Beuel ... 405 39.5 52.8 6.0 19.5 32.0 5 39 5.96 3.47 54.58 +0.66 83 Mare . , . S F. 25.9 38.0 51.5 5.0 5 41 51.48 a. 17 * M< Bowel ... 405 18.5 31.6 45.0 58.5 11.2 5 49 44.96 3.50 53.48 —0.33 854 Mare . . . N.P. 21.2 34.5 • 1.0 5 44 47.63 4.22 86 B*es«l ... 405 16.0 29.2 42.5 55.8 8.5 5 4542.40 3.61 54.77 +0.61 87 Mars . . . S.F. 57.4 10.5 93.8 37.3 5 46 23.80 3.27 88 Beuel ... 405 51.0 4.3 17.5 31.0 43.7 5 47 17.50 3.64 53.70 —0.37 89 Mare . . . N.P. 21.0 34.5 47.5 0.5 5 49 47.30 4.38 90 Benel ... 405 15.5 28.8 42.5 56.0 8.8 5 50 42.32 3.68 55.02 +0.70 ill Mars . . . 8 F. i-3 17.8 30.8 44.2 5 54 :<0.83 3.33 99 Bensel . . . 405 58.5 11.7 25.0 38.3 51.0 5 55 24.90 3.71 54.07 —0.38 93 Mara . . . N.P. 88.1 46.0 59.0 12.5 5 56 59.08 4.43 94 Beimel ... 405 28.9 41.5 54.7 8.1 21.0 5 57 54.70 3.73 55.62 +0.70 95 Mare . . . S.F. 29.5 35.5 48.8 2.0 15.0 5 59 48.76 3.40 96 Beisel ... 405 17.2 30.5 43.5 57.0 9.5 6 0 43.54 3.82 54.78 -0.42 n Mara . . . N.P. 48.0 1.5 14.5 27.8 40.8 6 1 14 52 4.50 98 Beimel ... 405 44.2 57.0 10.3 23.8 36.5 6 2 10.36 +:t.77 —55.84 +0.73 34 OPPOSITION OF MARS, 1849-60, DECEMBER '4O. 1B4B-C oiHIuuril. i Object. Chronometer HUM at trawli. Mean of wire*- Micr. Planet— 9 (jr. Bar. Thrrroomewn. A. B C. D. E. A «• A i. Air. \V.i. h m A j h. m. a. Rev. a. Bev. Incliea. • ' m Man . . . 8F. M.5 40.0 53.9 6.4 19.5 6 4 53.19 +3.51 98.038 71.9 58.9 m BMM! . . . 405 35.5 48.1 1.5 1-1.3 6 5 48.98 3.94 -56.16 -0.43 TMr. UL 101 Man . . . N P. 6.5 90.0 33.0 46.5 59.0 6 7 33 00 4.M ••:'.* 103 Bewel . . . 4Gj 18.9 99.9 49.3 55.5 6 8 9JI.18 3.97 56.18 +0.57 , "»;, 109 Man . . . B.F. i'.." 39.0 59.9 5.5 18.5 6 13 59.90 3.69 104 BOM! ... 405 34.5 47.5 1.0 14.0 6 14 47.63 4.09 55.43 —0.40 105 Man . . . N.P. 6.0 19.5 32.5 46.0 58.5 6 16 39.50 4.67 106 Beaael ... 405 16.5 99.5 43.0 55.7 6 17 99.5.% 4.11 57.05 +0.56 107 Man . . . 8.F. 58.0 11.5 94.5 38.0 51.0 6 18 94.14) 3.65 108 Boael ... 405 54.0 7.5 90.5 34.0 46.5 6 19 90.50 4.07 55.90 —0.42 108 Man . . . N.P. 50.5 3.7 16.6 30.9 43.0 6 91 16.84 4.67 110 Betttl ... 405 1.9 14.9 97.7 40.5 6 99 14.38 4.09 57.44 +0.68 111 Man . . B.F. 35.0 38.9 51.8 5.0 17.5 6 94 51.38 3.59 lit BCMCI ... 405 91.9 34.9 47.6 1.9 13.8 6 95 47.60 4.09 56.99 —0.43 113 Man . . . N.P. 19.8 33.9 48.9 59.5 13.5 6 97 46.44 4.65 114 Beuel ... 405 17.8 31.0 44.0 57.3 10.9 62844.06 4.06 57.69 +0.59 119 Man . . . B.F. 8.5 19.S 39.8 46.5 59.0 63039.86 3.65 lit Bnxl ... 405 3.0 99.5 43.0 55.5 6 31 99.46 4.04 56.60 -0.39 117 Man . . . N.P. 23.0 6.3 19.5 33.1 45.8 6 32 19.54 4.70 111 Bewd ... 405 4.5 17.5 31.9 44.0 6 33 17.68 4.16 58.14 +0.54 lit . . B.F. 31 .S 44.5 57.8 11.0 94.9 6 35 57.74 3.78 120 Beuel ... 406 41.5 54.5 8.9 21. 0 63654.68 +4.19 —56.94 —0.41 Remarks At the rninmeiieemenl of obaerralionf (being seen through the cold f Irani m of air near the Corriillerai) Man and the comparing >wr were quit* flaring ind unncady. At 4*. the image* were better defined, and capable ol being meanured more accurately a Recorded 99. 81. at win C. /Recorded 58. St. at wire D. I Both obji-eu unueadjr. f Man unsteady. (Micrometer recorded + 3.70 rev. A Good. ». / " M«an N. P. . . Thirty tranoiu . . . 5 5 17.39 -59.163 .... +0.635 . . . . =-.0 19.3S Mi an 8. F. . . Thirty trnnuu . . . 6 8 30.69 — 51.119 .... —0.390 . . . . =0 7.60 b. in. a. b. m. a. Correction for chronometer at 5 5 . , . . —15.37 5 5 1.95 Correction for chronometer at 6 8 . . . . —15.37 Santiago aid. time B. F 5 8 15.95 3 13.30 it 11 & t. t. Mmot In A. R. reduced to arc . . 15.76 A N. 8. llmbi mlcr. In rev, . . . . 1.095 = 19.98 Variation of A. R. in 3m. 13. 4- 3.06 — Variation of declination in 3m. 13». . — 0.09 CMMrvnd P. r. diameter 1H.H9 (*nrr. for dimn. of mfcr. wired . . . — 9.90 ' ii, .en i'ii N. B. diameter .... 17.76 b. m. .. h. m. H A » »l 1 5 , 0.01 A » at S 9 . 0.00 AT SANTIAGO DE CHILE. 35 DECEMBER 87. 1849. I E Chronometer time of transit. 1 Planet— Star. «-• - ' *>-- Thermometers. 1 Object. A. B. C. D. i E. A a. A S. Air. Wet. g £ 6 s. s. s. e. s. h. m. a. Rev. m. s. Rev. Inches. , 0 z 1 Mars . . . N.P. 15.5 28.3 41.7 55.3 8.0 35441.74 +4.53 28.148 70.1 59.1 2 Bessel ... 405 34.5 47.7 0.7 14.0 26.8 3 57 0.74 4.53 —2 19.00 ±0.00 Ther. att. 3 Mara . . . S.F. 22.6 35.6 49.0 2.5 15.0 4 2 49.40 '' 2.49 i 68°. 5 4 Bessel ... 405 41.0 54.0 7.3 20.7 33.5 4 5 7.30 : 3.63 2 17.90 . , . Bar. red. -'•" to 32° F. 28.040 1 Mare . . . N.P. 24.8 38.0 51.5 4.7 17.5 4 6 51.30 3.8? 1 Bessel ... 405 44.2 58.0 11.2 24.6 37.3 4 9 11.06 3.89 2 19.76 0.07 7 Mare . . . S.F. 54.9 7.5 205 34.3 47.0 4 12 20.70 3.33 8 Bessel ... 405 13.0 26.3 39.9 ' 59.7 5.2 4 14 39.26 4.20 2 18.56 —0.87 9 Mars . . . N.P. 44.3 1 57.8 10.8 94.0 36.8 4 16 10.74 5.33 10 Bessel ... 405 4.0 18.0 31.1 44.5 57 3 4 18 30.98 5.33 990.34 ±0.00 11 Mare . . . S.F. 55.9 8.5 21.8 35.1 47 8 4 9021.68 1.01 12 Bessel ... 405 14.3 97.8 41.0 54.5 7.0 4 33 40.93 2.10 3 19.34 —1.09 13 Mare . . . N.P. 51.4 4.5 17.5 30.8 43.5 4 24 17.54 2.43 14 Bessel ... 405 12.2 95.3 38.3 51.4 4.6 4 26 38.36 2.43 2 20.82 ±0.00 i l-i Mars . . . 8.F. 9.0 22.5 35.3 48.5 1.5 43835.36 1.58 16 Bessel . . 405 j 29.0 49.0 55.3 8.8 31.5 4 3055.33 3.60 3 19.96 -1.04 17 Man . . . N.P. 17.7 31.0 44.3 57.8 10.5 43344.28 i.il 18 Bessel ... 405 39.0 58.5 5.8 19.0 32.0 4 35 5.66 2.57 221.40 o.ot 19 Mare . . S.F. 43.2 56.5 9.7 33.0 35.8 4 37 9.64 1.56 90 Bessel ... 405 4.0 17.0 30.9 43.6 56.5 4 39 30.26 9.55 930.63 0.99 31 Mare . . . N.P. 48.8 2.2 15.4 98.5 41.2 4 41 15.29 9.48 99 Bowel ... 405 10.5 24.0 37.9 50.5 3.7 4 43 37.18 9.57 321.96 0.09 n Mare . . . P.P. 48.0 1.3 14.3 97.7 40.5 4 46 14.34 1.58 24 a Bessel ... 405 9.0 22.3 35.5 48.8 51.5 44835.49 9.67 2 21.08 -1.09 95 Man . . . N.P. 31.3 44.3 57.5 11.0 23.7 4 50 57.56 9.89 96 Bessel ... 405 53.7 7.0 90.3 33.5 46.9 4 5320.08 9.89 3 23.53 ±0.00 27 Mare . . . S.F. 44.8 58.0 10.5 34.5 37.3 4 55 11.09 1.85 38 De>sel ... 405 6.0 19.8 33.0 46 2 59.0 4 57 33.80 | 2.89 2 31.78 —1.04 * 29 Mare . . . S.F. 18.5 31.7 44.7 58.9 11.0 5 344.83 1.98 30 Benel ... 405 40.5 54.3 7.9 90.5 33.0 5 6 7.10 3.06 922.28 1.08 31 Man . . . NP. 15.5 29.0 49.1 55.5 8.2 5 9 42.06 3.17 33 Bessel ... 405 39.5 53.7 6.0 19.2 39.0 5 13 5.88 3.26 323.83 0.09 33k Mars . . . P.P. 13.5 26.8 40.0 53.2 6.0 5 13 39.90 2.27 34 Bessel ... 405 36.0 50.0 30 16.5 29.0 5 16 9.94 3.36 3 33.04 1.09 35 Mare . . . N.P. i.O 14.3 27.5 40.7 53.5 5 18 27.40 3.40 36 Bessel ... 405 25.0 38.8 51.2 5.5 18.0 5 30 51.70 3.48 3 24.30 0.08 37 •Mare . . . S.F. 17.0 30.9 43.9 56.5 9.3 S 92 43.24 2.49 38 Bc-scl ... 405 53.5 6.7 90.0 33.0 525 6.68 3.54 2 23.44 1.05 39 Mare . . . N.P. 6.0 19.3 39.5 45.8 58.5 5 27 32.42 3.63 40 Bessel ... 405 31.0 44.9 57.5 11.0 23.8 5 39 57.50 3.64 2 25.08 0.11 41 Man . . . 8 F. 19.3 3-2.5 45.5 59.0 11.8 5 31 45.69 9.63 49 Bessel ... 405 43.5 56.7 9.8 93.3 36.0 5 34 9.84 3.75 3 34.32 1.12 43e Man . . . N.P. 43.3 56.8 9.9 33.0 36.0 5 38 9.80 3.69 44 Berael . . . 4<(5 8.0 93.3 35.9 48.8 1.5 53835.14 3.84 3 25.34 0.15 45 if Mare . . . S.F. 53 5 8.0 19.9 33.5 45.2 5 40 19.08 2.84 46 Hemel . . . 405 17.3 30.5 43.7 57.2 10.0 5 42 43.74 +3.93 -2 34.68 —1.09 38 OPPOSITION OF MARS, 1849-50, DKfKMBKK 47. 1 * ' ' (.11'' 1 1 . (I z Otjtrt. ObrOaHMOctcr UIDO of tmtnt- Mean of wire*. Micr. Plant!- Bur. Bar. A. B. C. D. aV*. A i. Air. Rev. m. a. Rev. Incbea. • ' 47 Man . . . N.P. BMM! ... 405 15.8 49.5 99.0 56.0 49.4 9.0 55.8 99.9 8.9 36.9 5 44 49.94 5 47 8.78 +4.06 4.00 -9 96.54 +0.06 98.148 70.1 59.1 50 Man . . . 8F. Beaael ... 406 91.3 46.8 3S.O 59.8 47.5 13.1 1.9 96.4 14.0 . 54847.80 5 51 U.06 3.03 4.11 - -1.06 Th«. au. 68V 5 Bar. red. 51 MM . . . N.P. 50.5 3.5 17.0 30.5 43.9 5 53 16.94 4.17 ».U4u' sa BcMd ... 406 17.5 30.7 43.8 57.0 10.2 5 55 43.84 4.90 996.90 0.03 63 Man . . . B.F. 54.3 7.5 90.7 34.9 47.0 5 57 90.74 3.91 54 Becad ... 405 19.5 33.8 46.5 0.0 19.7 5 59 46.38 4.33 . 1.11 59 Mm . . . N.P. 54.7 8.0 90.5 34.5 47.9 6 1 90.98 4.33 58 Be^rl ... 406 93.3 35.5 46.8 15.0 6 3 48.76 4.49 997.78 0.09 57 Man . . . S.F. 46.0 • 13.3 95.8 6 6 19.30 3.37 H B-.W-I ... 40.'. 12.3 86.7 39.0 63.4 5.3 6 8 38.98 4.37 996.68 1.00 59 Man . . . N.P. 47.0 0.5 13.5 97.0 39.6 6 10 1H..VJ 4.45 60 Betwl ... 405 14.5 98.5 41.3 66.0 7.8 6 13 41. rJ 4.56 9 97.90 0.10 61 Man . . . B.F. 3.9 17.5 30.5 44.0 56.8 6 15 30.54 3.40 «9 Be,M'l ... 405 31.0 44.0 57.0 10.5 33.3 8 17 57.16 4.47 996.69 1.07 63 Man . . . N.I' 40.5 53.8 6.8 90.9 33.0 690 6.86 4.43 i 64 BtMcl ... 406 9.0 99.3 35.3 48.8 1 5 693 33.38 4.56 1 H . 0.13 P5 Man . . . B.F. 15.5 39.0 43.0 55.9 8.0 6 94 41.94 3.50 BeMel ... 405 43.3 66.3 9.7 93.2 36.0 6 97 9.74 4.60 997.80 1.10 Man . . N.P. 31.9 34.5 47.5 1.0 13.8 6 98 47.60 4.50 • Beawl ... 400 50.5 3.8 16.5 30.3 43.8 6 31 16.78 4.55 939.19 0.05 Man . . . 8.F. 33.5 46.8 59.8 13.3 36.0 6 3359.88 3.44 70 Beuel ... 405 9.8 1S.5 99.5 43.8 55.7 6 3599.46 4.60 999.58 1.16 71 Man . . . N.P. 57.5 10.8 33.8 37.9 50.9 6 37 93.93 4.48 79 BeaMl ... 405 97.3 40.5 53.5 7.0 19.8 6 39 53.60 4.63 II H 0.14 73 MUM . . . B.F. 98.8 49.0 55.9 8.5 91.3 6 41 55.16 3.97 74 BMM! ... 405 • • 11.0 94.0 37.5 50.9 6 44 94.06 i.17 1.90 75 Man ... N.P 47.6 0.7 14.0 97.2 39.8 6 46 13.86 4.61 7« Besael ... 406 18.8 31.9 44.5 58.0 10.7 648 44.5* 4.63 930.66 0.09 77 Man . . . B.F. 17.:, 31.0 44.0 10.9 6 51 44.04 3.99 78 BeaMl ... 405 47.2 0.5 13.3 37.0 39.8 6 54 1.1.56 i-4.45 —999.59 .—1.93 Remarks. A: ll> Mazing and v<>> Mn-l< :i« HIT HI :inv mn>- In inn- ,'iA. 30m. alt d Tlie Mircraiini obwrvaiinni ire heller until 6*. 36m., t Mi rev. win -n • mnium Mil Mazing appearance 'if l» • need. r Very trcrauloui. RtKullf. M. ,i. V V. rlliliU . h. m. i. . 593 19.43 in. «. R'-v. —994.810 .... —0.056 . . / // . =0 1.07 M.4I, H. I' T».i.l> li .. . 5 96 49.35 -•_' SU.Wx . . —1.089 . . . ^.1)31.09 h. m. Correction for chronometer at 5 23 Correction for chronometer at 5 26 AT SANTIAGO DE CHILE. DECEMBER 27, 1849— Continued. Results — Continued. . —16.11 . —16.11 h. m. s. Santiago eid. lime N. P 52256.31 Santiago sid. time S. F 5 26 26.24 Interval . 3 39.93 37 A P. F. limbs in A. R. reduced to arc Variation of A. B. in 3m. 30s. . . . Observed P. F. diameter .... b. m. A o at 5 24 14.58 + 3.29 17.69 A N. S. limb micr. in rev Variation of declination in 3m. 30s. . Corr. for diam. of micr. wires Observed N. S. diameter .... 1.027 = 20.02 — 0.04 — 2.20 17.78 0.00 h. m. A f at 5 28 0.02 DECEMBER 98, 1840. It was found impossible to observe Hie selected star to-night, because of the vicinity of the moon, a klight haze, and its apparently lesser magnitude than is assigned in Bessel's Zones. It wuuld bear no illumination whatever, and could scarcely have exceeded the 10th magnitude. J. M. G. DECEMBER 20, 1840. The remarks of last night are applicable to this, and the haze is somewhat greater. I do not think the star can exceed the 10th or 1 1th magnitude. Efforts to measure its distance from Mars proved wholly ineffectual. J. M. G. DECEMBER 30, 1840. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. O. D. E. An. A I. Air. Wet. •. l. 1. 8. s. b. m. •. Rev. m. s. Rev. Inches. • O 1 Bessel ... 405 3.5 16.8 30.2 43.8 56.7 3 10 30.20 + 1.63 28.178 72.1 59.3 a Mara . . . N.P. 21.0 34.3 47.5 1.0 13.5 3 U 47.43 9.13 +1 17.23 +7.50 3 4a 5» Bessel ... 405 Mara . . . 8.F. Bewel ... 405 37.2 5T..8 n.i 50.8 8.8 3.5 31.5 19.5 17.0 34.5 33.0 30.0 47.3 45.8 3 15 3.50 3 16 21.58 3 -22 19.66 2.15 8.58 2.59 1 18.08 6.43 Ther. alt. 70°. 5 Bar. red. to 32° F. 28.064 6 Mars . . . N.P. 9.5 35.8 49.3 2.0 39335.86 10.05 1 16 20 7.46 7 Bessel ... 405 27.0 40.5 6.8 19.5 3 37 53.46 0.78 8 Man . . . 8.F. 44.5 58.5 34.3 37.0 3 39 11.08 7.39 1 17.62 6.51 9 Bessel ... 405 2.0 15.0 3b.O 41.5 54.5 364 38.20 1.40 10 Mars . . . N.P. 16.5 30.0 43.8 56.3 8.5 3 55 48. 8U 8.94 1 14.60 7.54 11 Bessel ... 405 17.5 31.0 44.5 57.7 10.5 3 58 44.24 0.66 ll! Mars . . . S.F. 34.0 46.8 0.0 13.6 36.0 4 0 0.08 7.09 1 15.84 6.43 11 Bern! . . . 405 52.5 5.8 19.0 33.5 45.0 4 6 18.96 0.47 14 Mars . . . N.P. 6.5 33.7 46.0 58.8 4 7 33.71 7.84 1 13.75 7.37 ' . . . 405 M.2 6.3 19.6 33.0 45.5 4 12 19. 53 16 c Man . . . S.F. 7.7 21.0 34.3 47.7 0.3 4 13 31.20 1 14.68 17 Bessel ... 405 11.5 25.9 38.9 51.5 4.3 4 17 38.14 1.90 18 Man . . . S.F. 26.3 39.5 53.5 5.7 18.8 4 18 52.54 8.27 1 14.40 6.37 19 Bessel ... 405 10.7 24.0 37.3 50.6 3.5 4 20 37.99 2.15 30 Man . . . N.P. 23.8 3D. 8 49.5 3.5 16.2 4 21 49.96 9.46 1 12.74 7.31 -81 Bewel ... 405 41.5 54.6 8.0 21.2 34.0 4 24 7.86 3.20 03 Mars . . . S.F. 55.0 8.7 21.8 35.3 47.8 4 2591.72 8.59 1 13.96 6.39 > as Besscl ... 405 10.0 23.2 36.8 49.3 2.5 4 27 36.36 3.34 24 Man. . . . N.P. 22.0 ai.5 48.8 2.5 15.2 4 28 48.80 +9.65 + 1 12.44 +7.41 38 OPPOSITION OF MARS, 1849-50, DECEMBER 30, I-4O < otillnurd. $ Chrnnomrtrr tlmr of irannit. Mean of wire*. Micr. Planet— Star. •«__ - O**. A. B. D. E. A t. BB*MBI Air. W«. -• & Rrv. m. a. Rev. InebM. • as BeMcl'. . . 405 38.3 51.5 4.6 18.3 31.3 431 4.74 +1.40 98.178 79.1 • | 98 Man . . . B.F. 51.5 S.9 18.5 31.8 45.5 4 39 18.50 7.79 +1 13.76 +6.39 Thf r. an. 17 Brmft . . 405 57.5 11.0 94.9 37.5 50.3 43494.10 1.39 70-.5 »t Man . . . N.P. 9.6 99.8 36.0 49.0 : . 4 35 31.88 8.79 1 11.78 7.40 Bar. red. to 33- F. •MM 29* Bart ... 405 90.5 34.0 47.9 0.5 13.5 4 37 47.14 1.97 ! '•*> Man . . . B.F. 34.0 47.3 0.5 14.0 96.5 4 39 0.46 7.66 1 13 39 6.39 31 BMM! ... 405 7.9 91.0 34.0 47.5 0.5 4 41 34.18 1.48 39 Man . . . N.P. 19.5 33.6 45.8 59.9 11 8 4 43 45.78 8.93 1 11 60 7.45 33 30.5 44.0 57.1 10.5 93.9 4 44 57.08 1.55 34 43.0 58.7 9.8 99.5 35.5 4 46 9.50 8.01 1 19.44 6.46 35 BMM! ... 405 45.0 58.3 11.3 95.0 37.6 4 49 11.44 1.69 36 Man . . . N.P. 56.4 9.6 99.5 36.0 48.7 4 50 93.64 9.00 1 11.90 7.31 37 BMM! ... 405 49.5 9.5 15.8 99.0 41.8 4 59 15.80 1.73 38 Man . . . 8.F. 1.3 14.8 98.0 41.3 54.0 4 53 37.88 8.09 1 19.08 6.33 39 BMM| ... 405 53.5 6.8 90.0 33.3 46.0 4 56 19.93 1.76 40 Man . . . N.P. 4.5 17.0 30.5 43.5 56.9 4 57 30.34 9.90 1 10.49 7.44 41 B««ol ... 405 8.8 99.9 35.9 48.8 1.3 45935.26 1.63 49 Man . . . 8.F. 90.5 33.5 46.5 0.0 13.0 5 0 46.70 8.07 1 11.44 6.45 43 B«Md ... 405 7.9 20.3 33.5 47.0 59.8 5 9 33.56 1.76 44 Mara . . . N.P. 17.0 30.8 43.5 57.9 9.3 5 3 43.58 9.30 1 10.00 7.44 45 Beaael ... 405 57.9 10.5 23.5 37.3 50.9 5 6 33.74 1.87 46 Man . . . N.P. 7.5 91.0 333 46.8 59.0 5 7 33.53 9.28 1 9.78 7.41 47 BeaMl ... 405 38.0 49.0 9.3 15.7 98.3 5 19 9.36 1.93 48/ Man . . . 8.F. 46.9 0.0 13.0 98.3 39.0 5 13 13.04 8.27 1 10.78 6.34 49 BMM! ... 405 5.0 18.9 31.3 44.7 57.5 5 1531.34 9.09 50 Man . . . N.P. 14.3 97.0 40.0 54.0 6.5 5 16 40.36 9.37 1 9.09 7.35 51 BMM| . . 405 47.0 0.5 13.5 96.8 39.5 5 19 13.46 2.15 a Man . . . B.F. 57.8 11.0 94.0 37.5 51.0 5 90 24.38 8.43 1 10.80 6.97 a Brawl ... 405 97.9 40.5 53.2 7.0 90.0 6 32 53.58 3.09 54 Man . . . N.P. 3C.5 49.5 9.3 15.8 98.3 5 94 3.48 9.49 1 8.90 7.33 55 Brnel ... 405 53.5 5.7 18.8 39.5 45.0 S 98 18.90 1.39 M Man . . . B.F. 9.5 15.7 98.8 49.9 55.0 5 97 28.84 7.80 1 9.94 6.51 57 BMM|'. . . 405 59.5 19.9 98.1 39.5 59.9 59936.04 1.37 58 Man . . . N P. 8.3 91.9 34.5 48.3 1.9 5 30 34.70 8.88 1 8.68 7.51 99 BMM| ... 405 3.5 16.6 30.0 43.9 56.0 5 3999.88 1.54 •• Man . . . B.P. 13.8 97.5 40.9 53.8 6.7 5 33 40.40 7.87 1 10.54 6.33 61 BMM! ... 405 16.0 99.5 4J.3 55.5 8.5 535 49.36 1.55 M Man . . . N.P. 94.0 38.9 51.5 4.5 17.3 5 38 51.10 1 8.74 7.37 63 B.-M-I ... 405 37.5 51.0 4.3 17.7 30.5 5 39 4.90 1.61 64 Mara . . . 8 F. 47.5 1.0 14.9 97.5 40.9 5 40 14.08 +8.00 +1 9.88 +6.39 1 AT SANTIAGO DE CHILE. 39 DECEMBER 3O, 18*9— Continued. Remarks. There being a slight haze or dry fog which prevents that flaring appearance so frequently presented by the planet, the night is favorable for obser- vations. . a Recorded 37.5s. at wire D, 50.3s. at E. d Good measures. 6 Recorded 55.3s. at wire A. t Micrometer recorded + 0.27 rev. c Neglected to read micrometer ; observation omitted in / All the succeeding measures are good, mean result. Results. Mean N. P. . . Sixteen transits Mean 3. F. . Fifteen transits h. m. s. . 4 39 41.04 . 44326.04 m. s. Rev. + 1 11.6B7 ... +7.412 . . + 1 13.992 . . . +6.399 . . . . =2 24.46 . . =8 4.71 h. m. Correction for chronometer at 4 40 . . , Correction for chronometer at 4 42 . & P. F. limbs in A. R. reduced to arc . Variation of A. R. in 2m. 45s. ... Observed F. F. diameter 8. . -17.87 , . —17.87 ii . . 19.57 . . + 2.34 . . 31 .91 h. m. s. . . 4 39 23 17 . . 4 42 8.17 . . 9 45.00 A N. S. limbs micr. in rev. . . . Variation of declination in 3m. 45s. . Corr. for diam. of micr. wires . . . Observed N. S. diameter /'.... . 1.013 = 19.75 — 0.07 — 2.20 17.48 h. m. A a at 4 39 H . 0.16 h. m. A a at 4 42 ii . 0.14 DECEMBER 31, 1849. S Chronometer time of transit. Micr. Planet— Star. Bar Thermometers 1 5 Object. A. B. C. D. E. Ad. A A uar. Air. Wet. m i f. l. 1. l. l. h. m. s. Rev. s. Rev. Inches. • • i Mara . . . N.P. 4.5 4 4 30.5 . 56.8 3 M 30.69 +5.45 28.137 74.2 60.6 2 Bessel . . . 405 51.4 3 52 37.98 ±0.00 —7.29 +5.45 -f-v.-IV Ther. att. 3 Mare . . . S.F. 56.5 . 23.0 . , • 49.9 356 22.99 +4.56 74° .2 4 Bessel ... 405 . . 15.9 . . 41.5 . . 3 56 28.23 ±0.00 5.94 4.56 Bar red. to 32° F. 28.012 5 Mara . . . N.P. 96.5 . . 53.0 . . 19.3 3 57 52.97 +5.48 1 Bessel ... 405 • • 46.5 • • 13.0 • • 3 57 59.63 ±0.00 6.66 5.48 7 Mara . . . B.F. 3.3 29.0 . . 55.9 4 0 28.92 +4.66 8 Besiel ... 405 29.0 48.0 • • 4 0 34.88 ±0.00 5.96 4.66 9 Mars . . . N.P. 19.6 39.7 5.0 4 339.15 +5.53 10 Bemcl ... 405 32.8 • • 59.9 • • 4 3 45 88 ±0.00 6.73 5.58 11 a Mara . . . P.P. S9.0 . . S5.5 . . 91.5 4 8 55.55 +4.70 19 Belief . . . 405 48.7 • • 15.3 4 9 1.88 ±0.00 6.33 4.70 U Mara . . . N.P. 41.0 21.0 4 12 7.52 +5.57 14 Bessel ... 405 • • 3.0 15.0 4 12 15.07 ±0.00 7.55 5.57 15 Mara . . . S.F. SI .9 . . : 4«.0 . . 14.0 4 14 47.74 +4.60 16 Bessel ... 405 • • 41.3 . . 8.0 . . 4 14 54.53 ±0.00 6.79 4.60 17 Mare . . . N.P. 55.0 . . 47.5 4 1821.29 +5.61 18 BesMl ... 405 16.9 29.2 43.0 . . 4 18 29.40 ±0.00 8.11 5.61 19 Mara . . . S.F. 57.9 . . 23.5 . . 49.8 4 20 23.59 +4.59 90 Bessel ... 405 17.3 . . 44.0 . . 4 90 30.53 ±0.00 6.94 4.59 21 Mara . . . N.P. 1.3 . . : 28.0 41.0 . . 4 92 27.77 +5.62 93 Be«sel ... 405 23.0 36.0 49.5 3.3 4 92 36.08 ±0.00 8.31 5.62 93 Mara . . . B.F. 59.5 13.0 26.0 39.5 59.3 4 25 26.06 +4.77 94 Benel ... 405 • . 20.2 33.2 46.5 59.9 4 S3 33.16 ±0.00 7.10 4.77 Ml Man . . . NP. 26.0 18.2 4 28 52.24 +5.74 98 Bruiel ... 405 • • 47.3 14.2 • • 4 29 0.63 ±0.00 —8.39 | +5.74 OPPOSITION OF MARS, 1849-60, OB CKMB 1:11 31. IMU-C'ont II1M..I. « of uaiul . \i , Pl.in.-l- 1 , . A. B. 0. D. E. B Am. A 4. Air Wrl. k £ e ,_ fc a. a. a. li. m. a. Rev. a. Rev. Inrhm. • * z 97 Man . . . «.r. 99.3 43.0 58.5 9.7 99.5 4 3956.90 +4.64 98.137 74.9 ' 98 c Beanl . . . 405 . . 50.5 4.0 17.8 30.9 4 33 3.85 ±0.00 -7.65 +4.64 — Tbcr.att 99 Man . . . N.P. 37.9 f r t 30.0 4 36 3.74 +5.64 74- .9 39 BUM*! . . 405 46.5 13.0 96.4 39.0 4 36 I9.92 ±0.00 t.U 5.64 • 10 39- F. 98.019 11 Man . . . S.F. 53.5 7.0 33.5 46.9 4 41 90.08 +4.56 SB Baaaai ... 405 15.0 98.0 41.5 54.5 4 41 98.01 ±0.00 7.93 4.S6 S3 Man . . . N.P. 16.3 99.4 S6.0 8.5 4 45 49.57 +5.56 34 Bnaaul . . . 405 • • 39.9 S9.3 5.0 18.3 4 45 54.06 ±0.00 9.51 5.56 35 Man . . . 8.P. 55.3 8.5 . . 47.5 4 AS 91 .40 +4.51 36 Bewal ... 405 • • 17.8 30.3 • • 56.9 4 55 30.66 ±0.00 9.96 4.51 37 Mara . . . N.P. 95.3 38.3 t f t t 18.0 4 59 51.70 +5.56 38 Bowl ... 405 • • 49.0 9.9 • • •.- 5 0 9.19 ±0.00 10.49 5.56 at Mara . . . 8.K 44.0 S7.5 , 93.8 . 5 1 10.38 +4.54 40 Beaad ... 405 • • 6.5 90.0 33.5 45.5 5 1 90.98 ±0.00 9.88 4.54 41 Man . . . NT. 99.5 , 56.0 9.5 99.0 5 6 55.96 +5.59 BaaMl ... 405 40.5 53.5 33.0 5 7 6.83 ±0.00 10.87 5.59 43 Man . . . S.F. 30.0 . , 9.0 . . S 856.09 +4.54 44 Bcaael ... 405 39.8 53.0 6.8 • • 39.0 5 9 6.96 .•." > 10.94 4.54 • 45 Mara . . . N.P. 5.5 19.0 f 45.5 68.0 5 15 34.04 +5.54 46 BCaWCi • • fj 405 • • • • 49.5 • • 9.5 5 IS 49. 30 ±0.00 10.88 5.54 47 Man . . . 8.F. 19.5 t 38.8 59.9 5.5 5 18 38.96 +4.51 44 Bcaael ... 405 • • 3S.O • • 9.5 • • 5 18 49. 13 I.I " 10.97 4.51 40 Mara . . . N.P. 47.5 0.8 . 97.8 40.5 5 40 14.17 +5.59 60 Beawl ... 405 • • 19.5 95.5 • • 59.0 S 90 95.66 ±0.00 10.49 5.59 SI Man . . . B.F. 98.9 41.5 . 8.0 91.0 S 94 54.69 +4.51 St Bea»el ... 405 51.0 4.5 • • 31.3 595 4.59 ±0.00 9.90 4.51 S3 Man . . . N.P. 93.8 37.9 50.5 3.5 16.5 S 98 50.30 +5.52 54* Bowl ... 405 50.0 3.0 • • 597 9.83 ±0.00 19.53 6.59 Man . . . 8.P. 30.3 43.5 56. S 10.5 . S 31 56.75 +4 55 Beawl ... 405 40.5 53.5 7.5 81.0 34.0 539 7.30 ±0.00 10.55 4.55 57 Man . . . N.P. 31.5 44.8 58.0 94.3 5 35 58.10 +5.51 Bcawl ... 405 • • r.7.s 10.5 94.0 6 36 10.58 ±0.00 19.48 S.S4 59 Mara . . . a.F. 43.9 56.5 9.5 99.5 35.5 5 39 9.44 +4.53 60 BaaMl ... 405 • • 8.0 91.0 34.5 47.5 S 39 41.13 " 11.69 4.53 61 Mara . . . N.P. 34.3 48.0 . . . . S 46 0.98 +5.53 69 405 0.5 u.o • • 40.9 5 46 13.89 ±0.00 19.91 5.53 63 Mara ... 8 P. 37.0 50.5 f 17.5 99.9 S 59 3.57 +4.56 64 Hunt . . . 405 9.3 41.5 S 59 15.40 g , | 11.83 4.56 65 Mara . . N.P. 38.0 51.9 , t 17.8 30.5 5 55 4.39 +5.50 66 Bnael . . . 405 • • S.O • • 44.0 S 55 18.00 ±0.00 13.61 5.50 67 Mara . . . HP. 18.5 39.0 58.9 11.0 S 57 44.94 +4.58 60 Bxael ... 405 • • 44.9 • • • • 93.5 5 57 57.35 ±0.00 18.41 4.59 60 Man . . . X T. 13.5 97.9 54 6 7.0 6 0 40.57 +5.48 79 Baaad . . . 405 91.3 6 055.19 iU.Ofl 14.55 5.46 71 Man . . . 8.P. 40.9 53.5 90.0 39.6 6 5 6.57 +4.49 71 Benal ... 405 . B.j , 45.6 6 5 19.65 ±0.00 -13.08 +4.49 AT SANTIAGO DE CHILE. 41 DECEMBER 31, 1849— Continued. Remarks. Owing to the vicinity of the objects, it was extremely difficult to place each accurately in contact with its wire, when on the meridian wire. The first and second sets of measure* are indifferent. a Recorded 39s. at wire A. 6 Poor measures. c Recorded 32s. at wire E. d Recorded 40i. at wire B ; 53«. at wire C. Results. - h. m. s. >. Rev. / . n Mean N. P. . . Eighteen transits . . 45329.17 — 10.032 .... +5.554 . . . . = 1 48.95 Mean 8. F. . . Eighteen transits . . 4 57 33.44 — 9.058 .... +4.574 . ... =1 29.15 h. m. 9. h. m. s. Correction for chronometer at 4 53 . . + 18.63 . . 4 53 10 54 . t t 4 57 + 18.63 . . 4 57 13.81 • • T . . 4 3 97 A P F. limbs in A. R. reduced to arc . . . 14.61 A N. 8. limbs micr. in rey. . . . . . 0.980 = 19.10 Variation of A. R. in 4m. 3>. . . . . . . + 3.33 Variation of declination in 4m. 3*. . . + 0.11 . . . 17.94 Corr. for diam. of micr. wires . . . — 2.20 Observed N. 8. diameter . . . . . 16.79 h. m. H b. m. // A » at 4 53 . 0.19 A a at 4 57 . 0.10 JANUARY 1, 1850. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A A Air. Wet. s. l. p. •. I. h. m. i. Rev. m. t. Rev. Inches. • • 1 9 3 4 5 Mars . . . N.P. Bessel ... 405 Man . . . B.F. Bessel ... 405 Mara . . . N.P. 12.5 35.5 19.5 34.0 50.3 95.5 48.3 25.5 47.9 3.5 38.8 1.9 38.8 0.2 16.8 59.9 15.5 53.2 13.8 30.1 5.0 27.8 5.0 96.5 43.0 3 15 38.80 3 17 1.66 3 19 38.80 3 91 0.34 3 -23 16.74 +6.40 3.01 5.57 3.19 +3.48 —1 92.86 ' +3.39 • 191.54 9.45 98.188 Ther. att. 71-.5 Bar. red. to 32° F. 28.071 74.5 58.3 6 Bessel ... 405 13.7 96.8 39.7 53.9 6.0 394 39.88 ±0.00 1 93.14 3.48 7 Mm . . . 8.F 55.7 9.9 99.9 35.8 48.6 32992.30 +3.48 e Bessel ... 405 18.9 31.5 44.4 58.0 10.6 3 30 44.54 1.21 1 93.94 9.97 9 Mara . . . N.P. 4.5 18.0 31.0 44.5 57.1 3 33 31. 02 4.79 10 Be.se! ... 405 98.9 41.5 S4.8 8.9 21.0 3 34 54.74 1.46 1 33.72 3.33 11 a Mara . . . 8.F. 53.0 6.5 19.5 39.8 45.8 3 37 19.52 4.15 1 19 Bessel ... 403 15.5 99.0 49.2 55.3 8.1 3 38 42.09 1.90 1 22.50 2.95 13 Man . . . B.F. 1.1 14.5 97.4 40.8 53.3 3 44 27.42 4.49 14 Bessel ... 405 • • 37.5 50.5 4.0 16.6 3 45 50.53 9.11 1 23.11 2.38 15 a Mare . . . N.P. 35.3 48.5 1.7 15.3 97.8 3 49 1.79 5.73 16 Bessel ... 405 0.0 13.5 96.5 39.5 53.5 3 50 96.40 9.35 1 94.68 3.38 17 a Mars . . . N.P. 37.2 50.5 3.5 16.8 99.8 3 53 3.56 5.86 18 Bessel ... 405 2.0 15.9 28.3 41.7 54.5 3 54 38.34 9.48 1 94.78 3.38 19 90 Mara . . . 8.F. Bessel . . . 405 0.5 95.2 38.3 97.0 51.5 40.5 5.0 53.2 17.3 4 7 27.01 4 851.46 4.32 1.97 1 24.45 2.25 f 91 Mara . . . N.P. 34.0 47.9 0.2 13.5 96.5 4 11 0.28 5.39 99 Beseel ... 405 0.0 13.2 96.4 39.8 52.3 4 12 26.34 9.04 1 96.06 3.35 S3 1 M»r« . . . 8.F. 56.8 10.0 93.0 36.5 49.3 4 14 93.12 4.58 94 Bwel ... 405 91.8 35.0 48.0 1.3 14.0 4 15 48.02 +2.23 —1 24.90 +2.35 42 OPPOSITION OF MABS, 1849-60, J\M MM. 1. !-•" I ..mi. in. .1. £ 4 Ob)«ct. Chronometer tune of umn.lt. Mlcr. Planet— <»r. Bar. . -1, .!,., 1. , A. B. C. D. 1 A a. A i. Air. Wet. • 58.3 b. in. a. Rer. m. a. Rev. In. MM • •• Mm . . . N.P. 90.3 33.5 46.5 0.0 19.8 4 17 46.69 +5.69 98.188 74.5 • Bca*el . . . 405 48.7 0.0 13.9 96.5 39.3 4 19 13.14 9.34 -1 96.59 +3.35 n 98 • Mm . . . 8.F. Bend . . 405 Man . . N.P. 51.3 17.0 7.5 5.9 30.4 90.8 18.9 43.4 33.8 31 5 57.0 47.9 44.3 9.3 0.0 4 99 18.10 4 93 43.49 49533.86 5.08 9.77 6.19 1 95.39 9.31 Tber. att. 71-.5 Bar. red. ; - 98.071 at Beucl ... 405 34.1 47.9 0.8 14.9 96.5 4 97 0.56 9.86 1 36.70 3.33 * 3H Man . . . 8.F. 33.9 46.7 59.8 13.3 95.0 4 9859.58 S.98 • Be»el ... 405 59.0 13.0 95.3 38.5 51.9 4 3095.18 3.03 i • 41 9.95 33 1 Man . . . N.P 43.9 56.5 9.5 33.8 35.5 4 39 9.50 6.37 94 Be««l ... 405 10.1 ..... 36.5 50.0 9.5 4 33 36.46 3.09 1 96.96 3.38 » Man . . . 8.F. 55.5 9.9 99.0 35.5 48.9 4 3539.08 5.53 35 Beaael ... 405 91.5 34.7 48.0 1.5 14.9 4 36 47.98 3.99 1 25.90 9.31 37 Man . . . N.P 58.0 11.3 94.5 37.6 50.5 4 41 34. :« 6.73 38 HcMWl ... 405 35.5 38.8 51.8 5.3 18.0 4 43 51.88 3.40 1 37.59 3.33 • Man . . . B.F. 0.8 13.8 97.3 40.5 53.9 4 4597.10 5.83 40 BeaMl ... 405 97.3 40.5 53.5 7.0 19.5 4 46 53.54 3.55 1 96.44 9.98 41 Man . . . N.I1. 13.5 98.8 39.8 53.9 6.0 4 48 39.86 6.98 49 Bewel ... 405 41.0 54.5 8.0 91.0 34.0 4 50 7.70 Ml 1 97.84 3.37 43 Man . . . s.K. 59.5 19.5 35.5 39.3 53.0 4 5335.76 9.99 44 BeMel ... 405 36.3 39.5 59.8 M 19.0 4 53 59.76 0.68 1 37.00 3.34 45 Mar.« . . . N.I1. 17. 7 31.0 44.9 57.4 10.3 4 55 44.13 3.96 46 BeaMl ... 405 46.0 59.9 12.5 96.0 38.5 4 57 19.44 0.70 1 98.39 3.98 47 Man . . . 8.F. 33.4 46.8 0.0 13.5 98.3 4 58 59.98 3.00 48 BeaMl ... 405 1.0 14.5 97.9 41.0 53.5 5 0 37.44 0.73 1 97.08 3.37 49 Man . . . N.P. 50.5 3.5 16.8 30.9 43.0 5 3 16.80 3.94 50 B«ael ... 405 19.0 3S.3 45.5 59.0 11.8 5 4 45.53 0.57 1 38.73 3.37 II Man . . . 8.F. 33.6 46.0 59.9 19.6 95.9 5 7 59.10 4.67 a Beanl ... 405 0.5 14.0 97.0 40.4 53.9 5 9 37.03 9.36 1 37.93 9.31 S3 Man . . . N.P. 9.9 15.3 98.5 41.8 54.5 5 11 98.16 4.54 M BeaMl .... 405 31.3 44.5 57.7 11.0 93.5 5 13 57.60 1.99 1 39.14 3.95 II Man . . . H.F. 49.5 3.5 15.5 '98.0 43.0 5 15 15.70 3.54 M B«Ml ... 405 17.5 30.7 44.0 57.3 10.0 5 16 43.90 1.30 1 98.30 9.94 57 Man . . . N.P. 5.0 18.9 31.9 44.5 57.9 5 18 31.33 4.99 58 Beanel . . . 405 34.3 47.7 1.0 14.4 97.1 590 0.90 1.66 1 99.68 3.33 • Man . . 17.1 30.3 43.3 58.7 9.9 5 91 43.98 3.83 90 Beam! ... 405 45.5 M.S 11.5 95.0 37.7 523 11.64 1.61 1 98.36 9.99 61 Man ... N.P 15.5 98.7 41.7 7.5 594 41.74 4.85 • Br-rl ... 405 44.8 58.0 11.3 95.9 37.5 596 11.36 1.60 1 -."...: 3.95 • Man . . . 8F. 39.0 53.9 5.0 18.9 31.9 598 5.19 3.61 64 Beaael ... 405 7.B 91.9 34.3 47.5 0.9 59934.90 1.34 1 99.08 9.97 • Man . . . N.I1. 51.9 4.5 47.6 31.9 44.0 5 31 17.70 4.67 M Bemel . . . IU:> 33.0 :c,.u 48.3 1.5 14.5 5 33 48.94 1.40 1 30.54 3.97 C7 Man . . . 8.P. 51.5 4.5 17.8 31.3 44.0 5 34 17.80 1.79 1 Bod ... 405 Sl.O 34.9 47.6 1.0 13.3 5 35 47.40 1.47 i ».M 9.95 69u Man . . . N.P. 51.5 4.7 17.9 31.3 40.0 5 37 17.88 4.73 70 II, ..-1 . . . 405 99.5 35.5 48.8 9.0 15.0 5 3N 48.76 + 1.56 --! ..". - +3.17 AT SANTIAGO DE CHILE. 43 JAITUARY 1, 185O— Coiitim&ed. No, for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A*. Air. Wet. 8. B. 8. s. s. h. m. B. Rev. m. s. Rev. Inches. I • nj Mars . . . S.F. 33.5 46.5 59.8 13.2 36.0 5 41 59.80 +3.83 28.142 74.5 58.3 72 Bresel ... 405 3.2 16.5 39.6 43.2 56.0 5 43 29.70 1.64 —1 29.90 +2.19 74 75* Mare . . . N.P. Bessel ... 405 Mara . . . S.F. 5.5 36.8 27.2 18.8 50.0 40.5 32.0 3.3 53.6 45.5 16.5 7.0 58.2 29.5 19.7 .5 45 32.00 5 47 3.20 5 48 53.60 4.93 1.75 3.98 1 31.20 3.18 Ther. alt. 69°. 5 Bar. red. 10 32° F. 28.031 76 Bessel ... 405 57.5 10.8 34.0 37.3 50.2 55023.96 1.77 1 30.36 2.21 77 Mare . . . N.P. 37.0 50.2 3.3 16.9 29.5 5 52 3.38 5.03 78 Beseel ... 405 8.8 33.0 35.2 48.6 1.2 5 53 35.16 1.78 1 31.78 3.25 79 Mara . . . S.F. 59.1 13.5 35.5 18.8 51.5 5 55 25.48 4.05 80 Bessel ... 405 29.8 43.0 56.3 9.5 22.2 5 56 56.14 1.83 1 30.66 3.22 81 i Mara . . . N.P. 3.8 17.0 30.3 43.5 56.2 5 58 30.14 5.09 / 89 Bessel ... 405 35.8 49.0 3.5 15.8 28.5 6 0 2.32 1.88 1 32.18 3.21 83 Mara . . S.F. 31.5 44.5 57.8 11.2 24.0 6 1 57.80 4.15 84 Kessel ... 405 9.5 16.0 29.0 49.4 55.2 6 3 29.02 1.96 1 31.33 2.19 85 Mara . . . N.P. 40.0 53.3 6.4 19.8 32.5 6 5 6.38 5.19 86 Bessel ... 405 13.5 35.8 39.0 53.3 5.2 6 6 38.94 1.98 1 33.56 3.21 87 Mara . . . S.F. 43.3 56.8 9.9 23.3 36.0 6 8 9.86 4.17 88 Bessel . . 405 15.0 98.3 41.3 54.7 7.5 6 9 41.34 1.96 1 31.48 3.31 89 Mara . . . N.P. 90.5 33.7 46.8 0.3 12.8 6 12 46.82 5.18 90 Bessel ... 405 53.5 6.5 30.0 33.9 46.0 6 14 19.84 +1.95 —1 33.02 +3.23 Remarks. There being much flare and unsteadiness about the limbs of Mare, the earlier observations are only moderately good. a Good measures. e Steady— good measures. ft Unsteady. / Planet steady — good measures. c Blazing. g Good. Indeed all these measures are excellent. d When oh.terviug Mara on middle wire there was a mo- A Remarkably steady. mentary quivering as though an earthquake shook i Wonderfully steady. the instrument. Mean N.I'. Mean S. P. Twenly-llirec n.ui-n- Twenty-two tranaiu h. in. CorrviMimi tor chronometer at 4 51 . Correction for chronometer at 4 51 . Results. h. in. s. 4 51 37.53 4 51 49.01 —19.33 —19.33 Rev. — 1 38.192 . . . . +3.29B . . . = 1 4.38 — 1 96.947 . . . . +9.269 . . . . =0 44.23 h. m. s. Santiago sid. Santiago Kid. Interval lime N. P. . . . time 8. F. ... . . . 4 51 18.19 . . 4 51 29.68 11.49 A P. F. limbs in A. R. reduced to arc . Variation of A. R. in lit Observed P. F. diameter . . . . h. m. A p at 4 52 18.67 + 0.15 18.82 A N. 8. limbs micr. in rev. Variation of declination in Hi. Corr. for diam. of micr. wires Observed N. S. diameter . . h. in. A f at 4 5S 1.030=20.05 — 0.00 — 2.20 17.85 O.OTi 44 OPPOSITION OF MARS, 1849-50, JANUARY J», 18»O. 1 rhnmonirtrr lime of IraiuiU U&.R «*.»._. Mirr Planet — Star. Tin rmoaietei*. ; OkJ.ct. A. B. C. 0. E. ..linuul *TII«T«> jnicr. Al. Air. U.t - S J b. m. •. Rer. in. v. Rev. h:'-!,. - , . r. i Mara . . . N.P. 50. 5 3.5 16.8 30.8 43.0 3 11 16.92 +9.49 98.038 74.6 57.9 9 Bewel ... 405 98.5 . . 64.5 8.9 91.0 3 13 54.76 1.63 —9 37.84 t-0.98 Thcr. alt. 3 Mara . . . B.F. 19.0 39.5 45.3 68.8 11.3 3 IS 45.38 1.68 74°. 4 4 B««l ... 405 . 9.9 99.0 36.4 48.0 3 18 91,03 1.68 9 36.65 ±0.00 ".'sjTp t7.ni' 6 Man . . . N.P. 34.4 47.5 0.7 14.9 96.9 3 91 0.74 9.94 6 Bevel ... 405 13.8 96.8 39.9 69.5 5.0 39339.46 9.01 938.79 +0.93 7 Mara . . . S.F. l.S 15.0 IM 41.5 54.3 3 46 98.10 9.99 8 Beatel ... 405 53.5 6.5 90.0 33.8 3 49 6.58 3.99 9 38.48 ±0.00 * 9 a Man . . N.P. 55.8 9.3 93.3 35.7 48.3 3 56 99.96 4.46 10 Betael ... 405 36.5 49.5 9.8 16.0 98.7 359 9.70 3.59 9 40.44 +0.87 lit Mara . . 8.F. 9.9 99.5 35.5 49.0 1.7 4 035.58 4.90 19 Be*tel . . . 40S 49.0 1.7 15.0 98.9 41.0 4 3 14.98 4.19 939.40 0.01 13 Mara . . . N.P. 43.4 56.5 9.7 99.8 35.7 4 S 9.69 1.88 14 BMM! ... 405 94.0 37.3 50.4 3.7 16.5 4 750.38 0.88 9 40.76 +1.00 15 c Mara . . . 8.F. 6S.4 8.9 99.9 35.3 48.0 4 10 91.96 0.94 16 Bern) ... 405 35.0 48.5 1.7 • • 97.5 4 13 1.49 1.01 9 39.4B -0.07 17 Mara . . . N.P. 36.9 49.5 9.8 16.0 99.0 4 15 9.70 9.08 18 Be«el ... 405 • • 31.9 44.0 • • 10.0 4 17 44.06 1.10 941.36 +0.98 19 Mare . . . 8.F. 60.3 3.8 16.5 30.0 43.5 4 90 16.62 1.03 90 Betael ... 405 31.0 44.0 57.9 10.5 93.9 4 99 57.18 1.03 940.56 ±0.00 91 Man . . . N.r. 7.0 30.3 ' 33.5 46.8 59.5 4 34 33.43 2.37 99 Beoel ... 405 49.0 9.3 15.3 98.8 41.3 4 97 15.32 1.41 9 41.90 +0.96 93 Mara . . . 8.F. 45.0 68.9 11.5 94.8 37.3 499 11.36 1.41 91 Beuel ... 405 95.7 39.0 59.3 5.7 18.9 4 31 59.18 1.55 940.83 -0.14 85 Mara . . . N.P. 56.6 10.0 93.9 36.5 49.9 4 3493.10 9.65 96 Bexel ... 405 39.5 53.7 5.5 19.9 31.5 4 37 5.68 1.77 9 49.58 +0.88 97 Mara . . . B.F. 44.3 57.5 10.5 94.9 36.9 4 39 10.68 1.80 98 Beuel ... 405 96.0 39.0 52.0 5.5 18.9 4 41 59.14 1.80 9 41.46 ±0.00 m M«» . . . N.P. 11.1 94.8 38.0 51.5 4.3 4 43 37.94 9.96 30 Bc«Ml ... 405 64.8 8.0 31.0 34.4 47.9 4 46 91.08 1.96 943.14 +1.00 3) t Ma» . . . 8 F. 43.0 56.5 9.3 99.S 35.8 4 48 9.49 9.05 32 Bemel ... 405 95.0 38.3 51.3 5.0 i. .8 45051.48 9.15 9 42.06 —0.10 33 Man . . . N.P. 95.7 39.0 69.0 6.9 18.9 4 59 59.04 : 3.19 34 Bewl • . . 405 . 99.0 35.5 49.0 1.5 4 55 35.38 9.36 9 43.34 +0.93 35 Mara . . . 8.F. 8.5 91.8 35.9 48.3 1.1 4 5734.98 9.94 36 D<— <•! ... 405 51.0 4.5 17.3 31.0 43.5 5 0 17.46 9.34 943.48 —0.10 37 M •• . . N.P. 3S.7 49.0 9.9 16.5 98.9 S 9 9.19 3.43 38 Bowel . . 405 19.5 33.0 46.3 69.5 19.9 5 4 46.08 9.53 9 43.98 +0.90 39 Man . . . B.F. 38.8 69.0 5.9 18.5 31.3 57 6.16 4.53 40 Brwl ... 405 35.0 48.0 l.S 143 5 948.16 9.57 943.00 —0.04 41 Mara . . N P. 17.8 31.0 44.0 57.7 10. S S 11 44.90 3.65 • 9.6 15.5 98.8 49.9 65.0 5 14 98.80 9.70 9 44.60 +0.95 43 Mara . . . B.F. 46.8 0.0 13.1 96.6 39.3 .', 17 13.16 9.87 44 Be—el ... 405 86.5 10.9 5 19 56.63 9.87 943.47 ±0.00 45. M . N.P. 97.* 40.9 53-5 6.8 19.5 S 91 63.40 4.04 46 BeMel . . 405 . . 96.0 38.9 61.6 4.9 5943ti.ll +9.67 —944.71 +1.37 AT SANTIAGO DE CHILE. 45 JANUARY H, 1850— Continued. S Chronometer time of transit. Micr. Planet— Star. Bar. Thermometers. 1 Object. A. B. C. D. E. A a. Ad. Air. Wet. o s. 8. 8. 8. 6. h. m. s. Rev. m. s. Rev. Inches. O O 47 Mare . . . 8.F. 58.3 11.5 24.7 38.0 51.0 5 29 24.70 +1.29 28.038 74.6 57.9 48 Bessel ... 405 43.5 55.8 9.0 22.3 35.0 533 8.93 1.37 —2 44.22 —0.08 Ther. att. 49 Mare . . . N.P. 4.7 18.0 31.2 44.5 57.3 5 36 31.14 2.55 74°. 4 90 Bessel ... 405 90.5 4.0 17.0 30.5 43.9 5 39 17.04 1.72 2 45.90 +0.83 Bar. red. to 33° F 27.912 51 Man . . . 8.F. 33.8 46.9 59.5 12.7 95.3 5 40 59.30 1.69 53 Bessel ... 405 17.5 31.5 44.0 57.5 10.5 5 43 44.20 1.87 2 44.90 —0.18 53/ Mare . . . N.P. 24.5 38.9 51.3 4.5 17.5 5 45 51.20 3.11 M Bessel ... 405 11.3 24.5 37.5 50.0 3.5 5 48 37.36 2.39 2 46.16 +0.72 »* Man . . . 8.F. 4.5 17.7 31.0 44.4 57.0 5 50 30.92 1.76 96 Bessel ... 405 50.0 3.0 16.0 39.5 49.9 5 53 16.14 9.00 2«,22 —0.24 57 Mars . . . N.P. 34.3 37.5 51.0 4.5 17.3 5 94 50.90 9.97 98 Bessel ... 405 11.5 94.8 37.8 51.4 4.0 5 57 37.90 2.09 2 47.00 +0.88 99 Mars . . . 8.F. 51.5 4.5 17.8 31.3 44.0 5 59 17.80 1.95 60 Bessel ... 405 37.5 50.5 3.6 17.9 30.0 6 3 3.76 2.15 2 45.96 -0.20 61 Mars . . . \ !• 97.7 41.0 54.0 7.5 90.3 6 394.10 9.98 69 Bessel ... 405 15.0 38.9 41.3 54.7 7.5 6 6 41.34 9.18 2 47.94 +0.78 63 Mara . . . S.F. 8.0 31.9 34.3 47.7 0.5 6 8 34.34 9.00 64 Bessel ... 405 54.3 7.5 20.5 34.0 4C.7 6 11 20.60 3.94 2 46.26 —0.24 65 Mara . . . N.P. 38.5 93.3 5.5 18.8 31.9 6 13 9.34 3.03 66 Bessel ... 405 96.7 40.0 93.0 6.5 19.5 6 1993.14 3.93 2 47.90 +0.80 67 Man . . . S.F. 10.8 94.3 37.5 90.8 3.5 6 17 37.38 3.01 68 Bessel ... 409 57.6 11.0 94.9 37.9 90.3 6 30 24.12 3.29 2 46.74 —0.28 69 Mara . . . N.P. 38.9 51.5 4.7 18.9 30.8 6 22 4.68 3.03 70 Bessel ... 405 96.5 40.0 53.9 6.5 19.5 6 24 93.14 3.33 3 48.46 +0.71 71 Mare . . . 8.F. 14.6 98.0 41.9 94.9 7.5 6 26 41.16 3.09 79 Bessel ... 405 2.3 15.9 98.5 49.0 95.0 6 29 28.64 +3.25 —9 47.48 —0.16 Remarks. An unfavorable night for observations, either bvcaure of much motion to the planet, and a flaring disc, or a partial obscuration of the comparing star by light cirri, that rendered measures doubtful under ordinary illumination, a Micrometer recorded + 3.46 rev. 6 Somewhat belter than preceding. « Recorded '21 .2*. at wire C. t Seen through haze. c As the light of the east lamp went out just on obser- ving Mars, it was removed, and not replaced until af- ter observing the comparing Ktar. The removal of its weight is shown in the measures. / Good. I The observations that follow are more reliable. Mean N. P. Mean S. F. Eighteen transits Eighteen unlit-its h. m. Correction for chronometer at 4 56 . Correction lor chronometer at 5 9 . Results. h. m. s. 4 56 27.54 5 9 30.04 H. . —20.44 . —90.44 m. ». Rev. — 2 43.667 . . . . + 0.914 — 3 42.701 .... —0.102 Santiago lid. lime N.P. . . Santiago sid. time 8. F. . . Interval . =0 17.81 = 0 1.99 h. m. s. 4 56 7.10 5 2 9.60 6 2.50 A P. F. limbs in A. R. reduced to arc Variation of A. U. in 6m. Si. . . . Observed P. F. diameter .... h. m. A f at 4 97 . . 14.49 + 4.56 19.05 0.02 A N. 8. limbs micr. in rev 1 .016 = 19.80 Variation of declination in 6m. 2». . . — 0.30 Corr. for diam. of micr. wires .... — 2.20 Observed N. 8. diameter . ... 17.40 h. m. " A pat 5 3 0.00 46 OPPOSITION OF MARS, 1849-50, • M \l MC V 4, 1880. C ler lime oTlnnti . Hi an of win** Mi<*r. ri in. i -Star. Bar 1 .. • • * Object. A. B. C. D. E. *• &J Air. Wet. t t Rev. i: •. 1 • . ! i • - . • s. 1 9 Hut . . . N.P. Kernel . . . Saa 98.0 41.3 47.3 54.7 0.5 8.0 13.5 90.5 96.5 34854.50 350 0.33 +3.31 5.01 —1 5.83 -1.70 98.110 70.0 55.4 3 4 5 Mara . . . 8.P. Bond . . . 533 Mara . . . N.P. 17.0 48.4 30.5 35.3 1. 5 43.5 48.5 14.8 57.0 1.5 98.0 9.8 14.5 41.9 35943.56 35348.33 3 56 14.78 0.65 3.91 1.60 1 4.77 9.56 Ther. au. 70-.5 II, :..!. to • r 97.996 e Bonl . . . W3 • • 8.0 91.9 34.5 47.9 3 5791.11 3.33 1 6.99 1.73 7 Man . . . 8.F. 31.9 44.5 58.0 11.3 94.9 3 58 57.85 0.32 8 Be»el . . . 5-J3 36.5 49.5 9.8 16.5 99.0 4 0 9.86 3.93 1 5.01 9.61 9 Mara . . . N.P. 93.9 36.5 49.7 3.0 15.8 4 1 49.64 1.41 10 Bcwel . . . 533 31.0 44.0 56.5 9.5 99.3 4 2 56.66 3.05 1 7.09 1.64 11 Man . . 8.P. 18.8 31.0 45.9 58.8 11.9 4 4 45.90 0.97 19 Bowel . . . 523 95.0 37.5 50.5 4.9 17.0 4 550.80 3.67 1 5.60 9.70 13 Mara . . . N.P. 19.0 95.3 38.5 51.8 4.5 4 7 38.42 1.83 H B«M| . . . 533 19.5 39.9 45.5 58.8 11.5 4 8 45.50 3.60 1 7.08 1.77 ISa Man . . . 8.F. 17.9 . . 43.5 57.9 9.7 4 13 43.49 0.78 16 Be«Ml ... £23 93.8 36.5 49.5 3.0 15.5 4 13 49.66 3.49 1 6.94 9.71 17 Mara . . . N.P. 41.4 54.5 7.8 21.9 34.0 4 16 7.78 1.94 16 Be«el ... 933 48.8 9.9 15.9 28.5 41.3 4 17 15.20 3.63 1 7.49 1.68 19 Man . . . 8.P. 48.0 1.9 14.3 97.7 40.5 490 14.34 1.04 90 Be«el . . . S93 54.3 7.5 90.5 34.0 46.8 4 91 20.69 3.68 1 6.98 9.64 91 Man . . . N.P. 43.4 55.5 8.5 93.0 34.8 4 23 8.64 1.91 99 Boael . . . SS3 50.0 3.9 16.5 39.8 4S.3 4 24 16.36 3.58 1 7.72 1.67 93 Man . . . 8.F. 47.0 0.3 13.4 96.8 39.8 4 96 13.44 1.09 94 Bewel . . . S83 53.5 6.5 19.6 33.0 45.5 4 27 19.63 3.73 1 6.18 9.70 95 Man . . . N.P. 57.7 11 0 94.9 37.5 50.5 4 99 24.18 9.49 98 B«Ml ... 393 6.0 19.9 33.9 45.5 58.9 4 3033.23 4.30 1 8.04 1.71 97 Man . . . 8.F. 38.5 59.9 5.0 18.8 31.9 4 34 5.14 1.50 98 Beaael . . . SO 45.5 59.0 19.9 95.5 38.9 4 35 13.08 4.30 1 6.94 9.70 99 Mara . . . N.P. 36.5 50.9 3.9 16.5 99.3 437 3.14 1.58 30 Bewef ... 593 44.0 57.0 10.9 93.5 36.3 4 38 10.18 3.34 1 7.04 1.76 31 Man . . . 8.F. 6.8 90.9 33.9 46.6 39.5 4 4033.23 1.59 :«» BMM| ... 593 14.9 97.9 40.4 54.0 6.5 4 41 40.46 4.33 1 7.94 9.74 33 Man . . . N.P. 30.5 43.5 57.0 10.3 99.8 4 44 56.83 1.53 34 Bexel ... 5X3 ».a 59.5 5.9 19.0 31.7 4 46 5.66 3.31 1 8.84 1.68 35 Man . . . 8.F. 11.0 94.3 37.5 50.5 3.5 4 48 87.36 0.61 36 B«Ml ... 593 • • 31.5 45.0 • • 11.9 4 49 44.89 3.33 1 7.53 9.71 37c Man . . . N.P. 49.5 55.5 9.0 99.3 35.0 4 59 8.86 1.60 38 Beoel ... 883 51.9 5.0 17.8 31.3 43.8 4 53 17.89 3.34 1 8.96 1.74 •' Mara . . . B.F. 39.9 59.5 5.5 19.0 31.7 4 55 5.58 0.71 • BCMCI ... 533 47.5 0.5 I3.S 97.0 39.5 4 56 13.60 3.47 1 8.09 9.76 • 4U Man . . . N.P. 10.1 93.4 36.5 50.0 9.5 4 5836.50 1.74 49 Boa* . . . S93 19.8 33.0 46.6 69.5 12.5 4 59 46.96 3.49 1 9.76 1.75 43 44 Man . . . B.F. B«Ml . . . MB 33.9 41.6 46.3 559 59.5 8.0 19.8 91.5 95.5 34.0 5 1 59.46 5 3 8.06 0.84 3.59 1 8.60 9.75 44 Mara . . . N.P. 97.5 40.8 53.8 7.5 90.9 5 4 53.96 1.87 46 BMM! ... 593 37.3 50.7 4.0 30.9 5 r< :<.:n +3.66 -1 9.98 —1.79 AT SANTIAGO DE CHILE. JANUARY 4, 1850— Continued. d e • V Chronometer time of trai^it. Micr. Planet— Star. [>.,.. Thermometers. 1 £ Object. A. B. C. D. E. A a. A*. liar. Air. Wet. 1 d fc 8. s. s. 8. B. b. in. s. Rev. 111. B. Rev. Inches. 0 0 til Mars . . . S.F. 49.8 3.0 16.2 29.7 42.5 5 8 16.24 +0.90 28.110 70.0 55.4 48 Besscl . . . 523 58.5 11.5 25.5 39.0 51.5 5 9 25.20 3.80 -1 8.96 —2.90 Ther. att. 49 Mara . . . N.P. 45.7 59.0 12.2 25.5 38.3 5 12 12.14 1.91 74°. 4 50 Beawl ... 523 56.0 9.5 22.5 36.0 48.0 5 13 22.40 3.70 1 10.26 1.79 Bar. red. to 32° F. 27.912 51 Mara . . . B.f. 43.7 56.8 10.2 23.5 36.3 5 15 10.10 0.98 59 Besscl ... 523 52.5 6.2 19.5 32.5 45.2 5 16 19.18 3.87 1 9.08 2.89 53 e Mara . . . N.P. 51.8 4.9 18.2 31.2 44.2 5 18 18.06 2.14 54/ Hi-ssrl . . . 523 2.5 15.2 98.5 42.3 54.7 5 18 28.64 3.94 1 10.58 1.80 55 Man . . . S.F. 7.0 21.5 34.5 47.8 0.5 5 21 34.26 1.12 56 Benel ... 523 • • 30.8 44.0 57.2 10.0 5 92 43.88 4.03 1 /62 9.91 57 Mara . . . N.P. 1.0 14.5 27.8 41.3 53.5 5 34 27.62 2.19 58 Besael . . . 523 • • 25.3 38.5 52.0 4.7 5 25 38.51 4.09 1 10.89 1.83 59 Mara . . . B.F. 55.3 8.7 21.7 35.2 47.9 5 27 21.76 1.22 60 Bcasel ... 523 18.8 32.0 45.5 58.2 528 32.01 4.03 1 10.25 9.81 61 Mare . . . N.P. 24.4 37.8 51.0 4.9 17.0 5 30 50.88 2.29 62 Beuel ... 523 35.5 48.5 2.2 16.0 98.8 5 32 2.20 4.14 1 11.32 1.85 63 Mars . . . S.F. 51.4 5.0 18.2 31.5 43.7 5 34 17.96 1.40 .1 Benel ... 523 • • 15.0 98.9 41.5 54.5 5 35 28.18 4.26 1 10.22 2.86 «s *• Mare . . . N.P. 8.9 21.5 34.7 48.9 1.0 5 38 34.72 9.46 66 Beswl ... 523 90.0 33.0 46.2 0.0 12.5 5 39 46.34 4.25 1 11.62 1.79 67 Mara . . . S.F. 3.7 17.2 30.2 43.5 56.5 5 41 30.22 1.49 68 Benel ... 523 14.5 27.5 40.8 54.9 6.8 5 42 40.76 4.33 1 10.54 9.84 69 Mars . . N.P. 44.6 58.1 11.0 24.5 37.9- 5 44 11.08 2.46 70 Bewel . . . 523 56.5 9.7 23.0 36.5 49.2 5 45 22.98 4.37 1 11.90 1.91 71 Mare . . . S.F. 7.5 20.8 34.0 47.5 0.2 5 47 34.00 1.60 72 Bessel ... 523 18.5 31.5 45.0 S8.5 11.2 54844.94 4.49 1 10.94 9.89 73 Mara . . . N.P. 4.0 17.5 30.5 43.8 56.5 5 50 30.46 2.60 74 Beiscl ... 523 16.2 S9.4 42.5 56.2 8.8 5 51 42.62 4.38 1 12.26 1.78 7M Mara . . . S.F. 10.6 24.9 37.5 51.0 35.0 5 53 37.66 1.54 76 Beuel . . . 523 22.0 35.5 47.5 1.0 13.5 5 54 47.90 4.47 1 10.24 2.93 77 Mara . . . N.P. 30.0 43.2 56.3 9.8 22.5 556 56.36 2.43 78 Benel ... 523 42.5 55.5 8.5 32.5 35.2 5 58 8.84 4.33 1 12.48 1.90 79* Mare . . S.F. 21.5 35.0 48.2 1.5 14.2 5 59 48.08 1.65 60 Benel ... 523 33.2 46.5 0.0 13.3 26.0 A 0 59. W) 4.52 1 11.72 2.87 81 Mare . . . N.P. 43.0 56.5 9.5 22.8 35.7 6 3 9.50 2.47 83 Benel ... 523 56.0 9.2 22.2 35.7 48.4 6 4 22.30 4.50 1 12.80 2.03 83 Man . . . S.F. 40.5 53.6 7.0 20.2 33.2 6 6 6.90 1.63 84 Benel ... 523 51.7 5.5 18.7 32.2 45.0 6 7 18.62 4.49 1 11.72' 2.87 85 Mare . . . N.P. 30.4 43.5 56.7 10.2 92.9 6 8 56.74 2.42 M Bowel ... 523 43.5 57.2 10.2 23.7 36.5 6 10 10.22 4.50 1 13.48 2.08 87 Man . . . S.F. 28.2 41.9 64.7 8.0 20.8 6 11 54.58 1.58 88 Be* el ... 523 40.0 53.4 6.5 19 5 32.5 6 13 6.38 4.48 1 11.80 2.90 89 ( Man . . . N.P. 1.5 15.0 a«.3 41.5 54.5 6 15 28.16 2.52 M Benel ... 523 15.5 98.5 42.0 55.5 7.8 « 16 41.86 4.48 1 13.70 1.96 91 I Man . . . S.F. 19.5 39.7 46.0 59.3 12.9 8 18 45.94 1.83 M Benel ... 533 31.8 45.5 58.5 12.0 25.0 6 19 58.56 +4.76 —1 12.62 —2.93 48 OPPOSITION OF MARS, 1849-50, JAKVAKT 4. 1890-Conllnnrd. I Object. Chronometer lime of transit. Mean of win*. Micr. Planet— Star. Bar. A. B. C. D. 1 A«. A i. Air. Wet. Her. m. a. Rev. Inches. * • 04 as 98 97 99 100 Mara . . . N.P. BcaMl ... BB3 Man . . . 8.P. Beioel ... 593 Man . . . N.P. Beacel ... 593 Man . . . 8.P. Benel . . . 593 59.5 13.9 13.9 95.0 94.5 39.0 13.5 98.7 19.7 98.5 96.5 38.8 38.3 59.8 «0 98.0 39.8 39.5 590 51. 8 6.0 40.0 53.9 39.5 53.3 53.0 5.5 5.0 19.3 53.5 6.8 59.3 6.0 5.8 18.9 ,7.7 39.0 6.3 19.5 6 91 98.00 6 99 39.78 69439.80 6 9551.90 89751.48 699 5.89 6 30 40.09 6 31 53.94 +9.58 4.54 1.58 4.57 9.57 4.48 1.48 -1 13.76 1 19.30 1 14.36 -1 13.99 -1.98 9.99 1.91 —9.97 28.110 Ther. alt. 74.'4 Bar. red. M • 1' 97.919 70.0 55.4 Remarks. The night wu not favorable lor observation*. Frequent cold bl»«u of wind, following a very hot day, generated currents in the strain of air. Then * much snow on the mountain* yesterday evening and latt night — partially the cause, perhaps, of the present atmospheric condition. I do not think the comparing star can exceed the 9.10 magnitude, though stated by Betsel u 8.9. a More steady, i Recorded 7.5>. at wire E. e Both objects very unsteady. . 5 9 44 97 Correction for chronometer at 5 13 . . A P. F. limbs in A. R. reduced to arc . Variation of A. K. in 3m. 93t . —99.54 h. m. 16.60 . 4- 9 36 5 13 6 88 ... 3 92 61 A \. 8. limbs micr. in rev. . . Variation of declination in 3m. 9S Corr. for ilium, of micr. wire* . Observed N. 8. diameter . . . h. in. A p ill 5 M // . . 0.998 = 19.45 4. . . — 0.13 • . . — 9.90 ... 17.19 0.08 Observed P. F. diameter h. m. A* at 5 10 18.96 it . . 0.04 .1 \ M V 111 8, 185O. The night of the 5th, until the planet had pained the meridian, was cloudy. .1 \ M V It 1 0, 1850. Nu. lor relennce. Object. Chronometer time of trannit. Mean of wire*. Micr. Planet— Star. Bar. Thermometer!!. A. . B. C. D. E. An. Ai. Air. Wet. a. a. I. a. a. h. m. .. Rev. m. •. Rev. Inches. • • 1 • Man . . . N.P. Bern) ... 593 19.5 33.9 39.5 48.4 45.7 59.5 59.9 13.0 11.8 95.5 3 41 45.74 3 44 59.59 +9.59 10.04 -3 13.78 -7.59 98.178 87.5 58.7 1 4 1 Mara . . . 8.P. BesMl ... 593 Man . . . N.P. 59.5 5.5 51.8 5.8 18.8 5.0 19.8 31.8 18.0 39.4 45.9 31. f 45.3 58.0 44.3 3 48 19.00 351 31 .W 3 53 IP.OH 1.48 10.04 3.03 3 19.88 ,=. Iticr. an. 68-.0 Bar. red. to 3r F. ... , , • B«Ml . . . SO* • • 19.9 • • 58.9 3 58 39.19 +10.53 —3 14.11 -7.50 AT SANTIAGO DE CHILE. 49 JANUARY 6, 1850— Continued. i .j 1 No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A I. Air. Wet. s. 58.0 8. s. s. s. . b. in. s. Rev. m. s. Rev. Inches. ° ° Mars . . . S.F. 11.2 24.3 37.5 50.2 3 59 24.33 +1.78 28.178 67.5 56.7 8 9 10 Bessel . . . 533 Mare . . . N.P. Bessel ... 533 11.3 53.0 7.0 34.3 5.5 20.3 37.5 18.6 33.5 51.0 33.0 47.0 3.7 44.5 59.2 4 2 37.52 4 5 18.52 4 8 33.40 10.31 2.97 10.59 —3 13.30 3 14.88 —8.53 7.62 Ther. alt. 68°. 0 Bar. red. to 33° F. 28.071 11 Mara . . . P.F. 58.6 13.0 35.3 38.5 51.2 4 19 35.10 1.01 13 Bessel . . . 523 13.0 36.0 39.2 52.4 5.1 4 23 39.14 9.60 3 14.04 8.59 13 Mars . . . N.P. 59.0 6.0 19.0 33.5 45.2 4 34 18.94 1.33 14 Bessel ... £33 8.3 21.3 34.5 48.0 0.8 4 27 34.54 9.05 3 15.60 7.72 15o Mara . . . S.F. 58.0 13.0 25.0 38.5 51.2 4 39 24.94 0.58 16 Besnel ... 533 13.8 25.7 39.0 52.5 5.2 4 32 39.04 9.33 3 14/0 8.75 17 Mars . . . N.P. 13.3 28.5 40.0 53.0 5.7 4 34 39.90 1.39 18 Bessel ... 533 • • • • 55.5 9.3 23.0 4 37 55.69 9.01 3 15.79 7.72 19 Mara . . . S.F. 53.0 5.5 18.5 33.0 44.7 4 40 18.54 0.46 90 Bess«l ... 533 30.5 33.5 47.0 59.5 4 43 33.51 9.94 3 14.97 8.78 til Mara . . . N.P. 48.9 1.5 14.5 38.0 40.8 4 45 14.60 1.69 S3 Berael ... 533 4.5 18.0 31.9 44.7 57.5 4 4831.18 9.47 3 16.56 7.78 23 Mare . . . B.F. 7.5 31.0 34.0 47.4 0.1 4 50 34.00 0.76 94 Bcssel ... 533 94.0 36.8 49.5 3.0 15.5 4 53 49. 7B 9.46 3 15.76 8.70 95 Mara . . . N.P. 25.5 39.0 52.0 5.5 18.2 5 39 52.02 1.08 36 Bessel ... 533 44.5 58.0 in. 8 34.3 37.0 5 43 10.90 8.85 3 18.88 7.77 376 Mara . . . S.F. 47.3 0.5 13.5 37.3 29.5 5 45 13.60 1.30 38 Bessel ... 533 57.0 10.5 23.5 37.0 49.7 5 49 23.54 10.12 4 9.94 8.92 39 Mars . . . N.P. 1.1 14.5 37.5 41.0 53.8 5 50 27.66 2.11 30 Bessel ... 533 31.3 34.0 47.2 0.5 13.9 5 53 47.22 9.99 3 19.56 7.88 31 Mara . . . S.F. 8.0 31.3 34.5 48.0 0.7 5 5534.50 0.81 33 Bessel ... 533 97.0 40.3 53.2 16.8 19.3 5 58 53.30 9.58 3 18.80 8.77 33 Mare . . . N.P. 58.0 11.5 24. S 37.8 50.5 6 0 24.46 1.93 34 BesMl ... 523 18.9 31.5 44. S 58.0 10.7 6 3 44.58 9.77 320.12 7.84 35 Mara . . . S.F. 15.0 98.S 41.5 54.8 7.5 6 541.46 0.94 36 Bessel ... 523 34.3 47.5 0.5 14.0 96.8 6 9 0.62 +9.81 —3 19.16 —8.87 Remarks. Not a very favorable night for observations, a Very unsteady. b A slip of the instrument in A. R. after observing Mar*. Rejected. Results. h. m. ». m. s. Rev. / /; Mean N. P. . . First six transits . 4 14 5.96 — 3 15.123 . . . —7.643 . . . . =328.96 Mean S.F. . . First six transits . . 4 21 14.3:1 3 14.172 . . . 8.651 . . , . 2 48.61 Mean N. P. . . Next three transits . 5 50 14.71 3 19.530 . . . 7.830 . . , . 2 33.61 Mean S.F. . . Next two transits . . 6 0 37.98 — 3 18.980 . . . —8.820 . . . . =251.90 h. m. h. m. 8. h. m. h. in. s. Correction for chronometer at 4 14 . - 28.63 Correction for chronometer at 5 SO . . — 38.83 Correction for chronometer at 4 21 . . — 28.64 Correction ft ir chronometer at 6 1 . . — 28.84 Santiago sid. time N. P. 4 13 37.33 Santiago sid. time N. P 5 49 45.91 Santiago sid. time S.F. ..... 4 30 45.65 S;i lit iliuo sill time ft, F 6 0 9.14 7 8.33 Interval 10 23 2:i 7° 50 OPPOSITION OF MARS, 1849-60, -l\\l MH II. IK50 (nullniK.I. Jiftults — Continued. A r. P. limb- in A. R. rrducrd to arc . . . 14. •-» . + 4.48 A N. B. limb* mirr. in n-v. . . . Variation of i!« <-lmniinn in 7m. 8f. . IMf — o.w Oftuervcd Pi K iliamrtrr , . . 18.74 — a.au A P. P. limb* in A. R. rrdurml to arc . Vnnaiiun of A. R. ill 10m. 93*. . . 8.10 . . -f. 6. SI ObMrved N. 8. diameter . . . . A N. 8. linibn micr. in rev. . . . 17.18 . 0.990=19.39 — 0.44 . . 11. Bl — 2.30 h. m. A f at 4 li . . .0.16 Olwrivi-d N. i*. ihamrirr . . . h. m. A * M 5 M 1K.M .... 0.17 A D it 4 aa . 0.19 A eat 6 9 0.19 JANUARY T, 1890. j A i Object Chronometer time of intuit. Mean of wires Micr. Planet — Star. Bar. Therm omeirre. A. B. C. D. E. An. A I. Air. Wet. «. •. d a. *. h. m. >. Rev. m. •. Rev. Incbe*. • • \ Man . . . N.P. 47.5 0.7 13.8 a?.a 39.9 3 39 13.82 + 0.98 98.163 71.4 :>..- • Bowl . . . 583 0.0 13.0 98.0 39.5 59.5 34386.30 11.66 -4 18.38 —10.68 3 4 3 Man . . . 8.F. Bottl . . 5-2) Man . . . N.P. 18.0 30.5 S3.3 3S.5 43.5 8.5 4S.5 58.5 19.8 58.8 10.0 33.0 11.5 33.0 45.7 3 46 45.46 3 50 56.70 3 55 19.66 1.71 13.59 9.19 4 11.84 11.81 Thcr. all. 69'. 5 Bar. red. to 33" F. B.M 8 Bern! . . . S33 5.3 19.5 33.5 46.0 58.7 3 59 32.40 13.99 4 13.74 10.80 7 Mara . . . B.P. 8.0 18.5 33.7 46.0 58.8 4 1 39.60 9.00 8 Be«el ... $33 17.8 31.0 44.5 5H.2 11.0 4 5 44.50 13.75 4 11.90 11.75 9 Man ... N.P 33.5 45.9 58.0 11.5 94.9 4 7 58.38 0.84 10 Boat) . . . saa 45.5 SB.O 19.0 35.3 38.0 4 13 11.96 11.58 4 13.68 10.74 11 Man . . . 8.F. 43.3 55.5 8.5 33.0 34.7 4 15 8.58 1.49 IS Benel . . . 583 54.8 8.3 91.5 35.0 47.5 4 1931.36 13.37 4 13.78 11.78 13 Man . . . N.P. 37.9 50.5 3.7 17.0 89.7 4 93 3.68 8.83 14 Bn*«l . . . 583 • • 50 18.0 31.5 44.3 4 96 18.06 13.59 4 14.44 10.77 U Man . . . 8.F 37.0 50.3 3.5 16.8 99.5 4 38 3.40 1.98 16 Brawl . . . 583 50.3 3.5 16.8 30.3 43.0 4 32 16.76 13.7-J 4 13.36 11.74 17 Man . . . NP. 58.7 9.8 99.8 36.3 49.0 4 34 33.90 3.18 18 Best?) . . . 583 11.5 94.5 37.7 51.3 43.0 4 38 37.58 13.91 4 14.68 10.78 ID Mara . . . S.F. 98.5 41.5 54.7 8.1 81.0 4 40 54.76 3.43 90 Bowl ... 933 49.0 55.5 8.5 83.0 34.8 4 45 8.56 14.33 4 13.80 11.80 21 Mara . . . N.P. 95.5 .165 51.5 5.3 17.8 4 48 51.70 1.81 .•- BMMI . . . -•-' i • • 53.5 6.7 19.8 39.5 4 S3 6.51 13.63 4 14.81 1MB. 93 Man . . . 8.F. 39.3 59.5 5.7 19.0 31.4 4 55 5.58 0.73 94 Bowl . . . 533 53.5 7.0 90.0 33.5 46.0 4 59 2U.no 13.59 4 14.43 11.86 M. Mara ... N.P 48.3 59.5 19.7 98.9 38.8 5 1 13.70 1.73 98 BMW! ... 583 9.0 15.0 98.0 • 54.5 5 588.30 13.51 4 15.60 10.78 01 Man . . . RF 11 3 95.0 38.9 51.5 4.3 5 7 38.04 0.86 98 Bmd . . . 583 98.5 39.5 63.0 6.5 19.9 5 U 59.94 13.73 4 14.90 11.87 • Mara . . . N P. 39.0 59.9 .'..» 18.3 5 13 53.16 1.78 30 B*M»| . . . 3*1 41.0 A4.9 7.5 90.5 33.5 & 18 7.34 13.78 4 15.18 10.94 31 Mir. . . . K.F. 40.8 9.8 16.8 99.0 690 9.86 0.98 :w H..«I 51.8 S.O 18.5 31.8 44.5 5 34 18.33 13.00 4 15.46 19.08 *1 ' Man . . 98.0 39.5 ca.7 6.0 18.8 58553.60 3.14 M B.-—1 ... 093 41.5 58.8 10.0 93.5 M.9 5 90 10.00 + 13.00 -4 17.40 -10.46 AT SANTIAGO DE CHILE. 51 JANUARY 7, 185O— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. Aa. A A Air. Wet. 8. a. s. e. s.* b. in. 8. Rev. m. a. Rev. Inches. • • 35c Mare . . . S.F. 29.5 43.8 56.0 9.3 33.3 5 31 55.96 +1.23 28.163 71.4 56.8 36 Beseel ... 533 45.8 59.0 12.0 . . 38.5 5 36 12.18 13.15 —4 16.22 —11.93 37 38 3D Han . . . N.P. Bessel ... 533 Mara . . . 8.F. 8.3 96.0 48.3 31.6 39.5 1.5 34.5 52.5 14.5 48.4 6.0 38.3 1.0 18.8 41.0 5 38 34.72 5 43 52.56 5 48 14.70 2.35 13.13 1.39 4 17.84 10.88 Tner. att. 69°. 5 Bar. red. to 32° F. 38.052 40 Be«Ml ... 533 6.0 19.0 45.5 58.0 5 52 32.14 13.27 4 17.44 11.88 41 c Man . . . N.P. 57.2 10.2 23.3 37.0 49.7 5 54 23.48 2.53 43 Bessel ... 523 15.8 38.8 43.0 55.5 8.5 558 42.13 13.66 4 18.64 11.14 43 Mara . . . S.F. 11.0 34.5 37.8 51.0 3.7 6 0 37.60 1.53 44 Benel ... 523 29.0 43.3 55.3 9.0 31.5 6 4 55.40 13.55 4/17.80 13.03 45 Mara . . . N.P. 5.5 18.5 31.8 45.3 58.0 6 6 31.82 2.56 46 Bessel ... 533 34.5 37.8 51.0 4.5 17.3 6 10 51.00 13.53 4 19.18 10.97 47 Mare . . . S.F. 48.0 1.5 14.5 37.8 40.5 6 13 14.46 1.55 48 Bewel ... 523 6.4 19.5 33.5 46.0 58.5 6 17 32.58 13.54 4 18.13 11.99 49 Mare . . . N.P. 10.3 33.5 36.5 50.3 3.0 6 19 36.70 2.63 50 Bessel ... 533 30.3 43.5' 58.5 10.0 33.5 6 3356.56 13.62 4 19.86 10.99 Sid Man . . . S.F. 13.5 35.5 38.5 53.0 4.6 6 35 38.63 1.61 Si Bessel ... 533 31.0 44.0 57.0 10.5 33.3 639 57.16 13.61 4 18.54 13.00 53d Mare . . . N.P. 33.0 46.0 58.5 13.8 35.5 6 31 59.36 3.63 54 Benel ... 523 53.5 6.5 19.8 33.3 46.0 6 36 19.80 +13.74 —430.44 —11.13 Remarks. Observations during the night extremely variable in accuracy or value, owing to frequent changes in atmospheric conditions, a Blazing and unsteady. c Steady. ft Very unsteady. ./ Good. Results. Mean N. P. Mean S. F. Fourteen transits Thirteen transits h. m. Correction for chronometer at 5 7 , Correction lor chronometer at 5 7 b. m. s. 5 7 8.11 5 7 19.31 B. . —31.67 . —31.67 m. s. — 4 16.183 — 4 15.075 Rev. — 10.848 . -11.885 . = 3 31.03 = 3 51.24 b. m. s. Santiago sid. time N. P 56 36.44 Santiago sid. time B. F 5 647.64 Interval ... 11.20 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 11> Observed P. F. diameter .... h. m. A p at 5 « 16.63 + 0.10 16.73 A N. S. limbs micr. in rev. Variation pf declination in Hi. Corr. for diam. of micr. wires . Observed N. S. diameter . h.m. A f at 5 9 1.037 = 30.31 — 0.00 — 2.30 18.01 0.25 52 OPPOSITION OP MARS, 1849-60, J \M \l< ^ - IM60. j C liii'hinii •If r limr of Iran* t. \j. . ••• \\ • • Micr. 1- M -Star. Bar. 1 : . • ,,... - Object. A. B. r. U. E. A«. A i. Air. Wet. • 4 Rev. Rev. [.,;,. • • X 1 Man . . . N P. 50.0 3.9 16.5 99.5 49.S 4 1 16.34 .1.33 98.151 79.9 56.6 9 BcMd . . . 523 59.0 19.0 95.0 38.5 59.9 4 695.34 15.14 —5 9.00 —13.81 3 1 5 Man . . . S.K. B«MI . . . saa Man . . . N.P. 47.8 55.5 4S.8 1.3 9.9 0.0 14.5 92.9 13.3 97.8 36.0 96.5 40 5 48.5 39.9 4 9 14.38 4 14 92.98 4 16 13.16 0.53 15.48 1.81 3 7.90 14.95 Ther. an 70-.5 B.r n-d. H . . 6 B«*Mi . . . sea 56.0 9.3 99.5 36.0 48.5 4 91 92.44 15.79 5 9.98 13.96 7 Man . . . 8.F. 59.S 5.5 18.5 39.3 45.0 4 93 18.76 1.04 8 Beml . . . 133 1.0 14.0 97 0 40.0 532 4 9897.04 16.00 5 8.98 14.96 • Man . . . N.P. 38.3 59.0 5.0 18.5 39.5 4 31 5.30 9.17 10 Be»«j| ... 393 • • 9.U 15.9 98.5 41.9 4 36 15.01 16.18 5 9.71 14.01 11 Man . . . P.P. 93.7 37.9 50.8 3.5 169 4 37 50.28 1.17 19 Bowel . . . 883 • • 46.3 59.3 19.7 95.5 4 44 S9.33 16.18 5 8.05 15.01 : Man . . . N.P. 48.9 1.3 14.5 97.8 40.5 4 45 14.46 2.46 14 BtMtl . . . 523 59.0 11.9 95.9 38.8 51.5 4 5095.34 16.42 5 10.88 13.96 IS Man . . . 8.F. 53.7 a - 90.0 33.4 46.3 4 5990.04 1.73 18 Bttaol ... 933 3.0 16.5 99.5 43.0 55.8 4 57 99.56 16.80 5 9.52 15.07 Mun. . . . N.P. 50.6 3.5 16.5 30.9 49.8 5 0 16.72 2.26 18 Bexel . . . 333 • • 14.5 27.5 40.0 53.5 16.43 5 10.54 14.17 19 Man . . B.P. 10.0 93.9 36.5 49.8 2.5 5 736.40 1.74 90 Beawl ... £33 19.8 33.2 46.2 59.7 19.5 5 12 46.28 16.80 5 9.88 15.06 91 Man . . NP. 94.5 37.7 51.3 4.3 17.0 5 14 50.96 1.51 23 lle«el ... 523 35.8 49.0 8.2 15.8 98.5 590 9.26 15.55 5 11.30 14.04 Man . . . 8.F. 37.5 50.5 4.0 17.5 30.9 593 3.94 0.39 94 Btwl ... 523 49.3 9.5 16.0 99.5 49.2 598 15.90 15.60 5 11.96 15.91 23 Man . . . N.P. 36.9 49.4 2.5 15.8 98.5 5 31 2.48 1.53 95 Beanl ... 523 48.5 2.0 15.0 98.5 41.9 5 36 15.04 15.74 5 12.56 14.91 97 Man . . . B.F. 31.0 44.5 57.5 10.9 93.5 5 37 57.48 0.81 98 Bend . . . 523 44.7 56.0 9.0 99.5 35.9 5 43 9.08 15.1-2 5 11.60 15.91 91 Man . . . N.P. 36.0 411.3 9.5 15.8 98.4 545 340 1.79 30 Bevel ... 593 • • 9.0 16.0 99.5 49.3 5 50 15.83 15.75 5 13.43 14.03 31 4 Man . . . 8.P. 34.5 47.5 1.0 14.9 97.0 559 0.84 0.68 a Boael . . . 5*3 46.8 0.0 13.3 96.5 39.5 5 57 13.92 15.84 5 19.38 15.14 33c Man . . . N.I'. 95.5 30.5 50.5 5.5 1D.5 6 6 52.30 1.78 :n BCMet . . . 523 40.5 53.9 6.5 90.9 33.0 6 19 6.68 15.94 5 14.38 14.16 35 Man . . . BF. 4.5 17.8 30.8 44.9 57.0 6 14 30.36 0.76 at Bend . . . 593 17.5 31.0 44.9 57.5 10.2 6 19 44.08 15.90 5 13.32 15.14 X Man . . . N.P. 8.3 91.3 34.8 48.3 1.9 6 21 34.78 1.79 Be«ael . . . 523 93.5 36.5 49.H 3.0 16.0 6 98 49.76 16.00 5 14.98 14.98 » Man . . . U.K. 13.0 96.9 39.5 59.5 5.3 6 98 :<9.30 0.63 « Bewtl . . . SS3 J7.0 40.9 53.2 6.5 19.5 6 3353.98 + 15.89 —5 13.98 —15.96 irkt. • Ttor d fmiiion being ordinarily good, and mnlinn of the p!anei nteady, thin may be regarded a vrry fair night for ob>ervalion>. The «tar cannot nccrd UK lOtk manilm.l.-. OI;.HK| m<-a- • t HUum and very uiiUeady. ,. .1 HI. III. .11 tMII I AT SANTIAGO DE CHILE. JANUARY 8, 1850— Continued. Results. 53 h. in. s. m. H. Rev. / // Mean N. P. . . Ten transits ..59 20.89 — o 11.606 .... —14.065 . . . =434.13 Mean 3. F. . . Ten transits . . 5 16 39.33 -5 10.677 .... —15.101 . . . =454.32 b. in. s. h. m. s. Correction for chronometer at 5 9 . . . —34.68 5 8 46 31 Correction for chronometer at 5 17 . . . —34.60 5 16 4 63 7 18 32 // H A P. F. limbs in A. R. reduced to arc , . . 13.93 A N. S. limbs micr. in rev 1.036=20.19 Variation of A. R. in 7m. I8>. . . . . . . + 4.09 Variation of decimation in 7m. 18«. — 0.35 18 02 Corr. for diain. of uiicr. wires ... — 2.20 Observed N. S. diameter ..... 17.64 h. m. // h. m. // 40 at 5 It . 0.30 A pat 5 19 . 0.32 T JANUARY 0, l---.il. No. for reference. Object. Chronometer time of transit Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A t. Air. Wet. - s. s. s. s. h. m. s. Rev. m. s. Rev. Inches. • « 1 Man . . . N.P. 41.2 54.3 7.5 21.0 33.7 332 7.53 + 0.54 28.096 71.3 53.8 2 3 4 Bessel . . . 5-23 Man . . . 8.F. Brssel ... 533 41.3 47.5 46.5 54.2 1.0 59.7 7.6 14.5 13.0 31.2 37.5 96.0 34.0 40.9 39.0 3 38 7.64 343 14.14 3 48 12.84 17.66 0.63 J8.74 —6 0.19 558.70 -17.12 18.19 Ther. att 73°. 0 Bar. red to 32° F. 27.978 5 Mara . . . N.P. 10.0 23.0 36.3 49.5 2.2 3 53 36.18 1.84 6 Bessel ... 533 10.9 23.5 36.5 50.0 9.8 3 58 36.60 19.03 6 0.42 17.18 7 Mare . . . 8.F. 49.5 3.5 16.0 28.8 4 2 3.59 1.40 8 Bessel . . 533 • • 49.2 2.2 15.7 38.3 4 8 3.21 19.55 5 59.63 18.15 9 Mare . . . N.P. 11.5 35.0 38.3 51.3 4.0 4 11 38.00 3.97 10 Bessel ... 533 19.5 26.0 39.0 53.5 5.3 4 17 39.04 30.17 6 1.04 17.20 11 Mars . . . 8.F. 33.0 46.3 59.5 1S.8 25.5 4 21 59.42 0.83 19 Bessel ... 533 33.5 47.0 0.0 13.5 26.3 4 38 0.04 19.09 6 0.69 18.16 . 13 Mare . . . N.P. 15.5 38.8 43.0 55.3 8.0 4 49 41.92 1.18 14 Bessel ... 523 17.5 31.0 44.0 57.5 10.2 4 48 44.04 18.51 C 2.12 17.33 IS Mara . . . B.F. 30.9 43.5 56.5 10.0 32.6 4 SO 56.56 0.40 U Ressel ... 523 31.5 44.7 58.0 11.5 34.0 4 56 57.94 18.68 6 1.38 18.28 17a Mare . . . N.P. 97.2 40.5 53.5 7.0 19.8 4 58 53.60 1.58 18 Ressel ... 523 30.5 43.5 56.5 9.8 33.8 4 4 56.62 18.92 6 3.03 17.34 19 Mare . . . 8.F. 16.8 30.0 43.0 58.5 9.9 5 743.10 0.90 20 ^essel ... 523 18.7 33.0 45.0 58.5 11.2 5 13 45.08 19.23 6 1.98 18.33 21 Mare . . . N.P. 30.0 43.5 56.5 10.0 99 5 5 15 56.50 1.11 23 Bessel ... 533 33.5 46.6 59.7 13.3 36.0 5 21 59.83 18.43 6 3.33 17.32 23 Mare . . . 8.F. 49.3 55.5 8.5 22.8 34.5 5 24 8.72 1.31 34 Bessel . . 523 45.0 58.3 11.3 24.8 37.5 5 30 11.36 19.73 6 2.64 18.43 25 Mare . . . N.P. 7.8 21.3 34.3 47.7 0.5 5 33 34.30 2.70 96 flpssel ... 533 11.7 25.0 38.3 51.7 4.5 5 38 38.33 20.07 6 3.92 17.37 97 Mara •. . . 8.F. 10.5 23.8 37.0 50.5 3.0 5 40 36.96 1.00 28 Bessel .' ... . 533 12.8 36.0 39.4 53.0 5.8 5 46 39.40 19.46 6 2.44 18.46 98 Mare . . . N.P. 18.0 31.5 44.5 58.0 10.5 S 49 44.50 2.46 30 Resnel ... 523 33.6 36.0 49.0 2.5 15.9 5 55 49.06 + 19.87 —8 4.56 - 17.41 54 OPPOSITION OF MARS, 1849-50, .1 \\< Mil :>. No. Cot reference. 0«Jeel. Chronometer time of iraani. Mean of wire*. Micr. Planet— Star. Bar. i-'i.rn, tm •• r- A. B. C. D. E. A a. A 4. Air. a. a. a. a. a. h. m. a. Rev. m. a. Her. ln.'li. -. • • 31 Man . . . 8.F. S3. 9 (.5 19.6 33.0 46.6 5 58 1U.6J +1.57 98.096 71.3 53.8 m Benel . . . 583 97.9 11.0 94.8 37.5 90.3 6 494.10 19.90 -6 4.48 —18.33 33» 34 35 Man . . . N.P. BemI . . . 583 Man . . . 8.F. 1S.5 81.9 3».3 98.8 35.0 98.5 49.0 48.0 6.0 55.5 l.fi 11.9 8.9 14.9 39.0 6 6 49.00 6 19 48.04 6 15 5.80 0.81 18.95 1.43 6 6.04 17.44 TlM-r. alt. 79V 0 Bar. red. I.. :i-j r. 87.978 38 BOM) ... 903 43.7 96.5 10.7 94.0 36.8 6 91 10.34 19.89 6 4.54 18.39 37 Mar. . . . N.P. 43.5 57.0 10.5 94.0 36.8 6 83 10.36 1.33 38 Beaeel . . . 593 51.0 4.4 17.3 30.6 43.9 6 99 17.30 18.86 6 6.94 17.53 39 Man . . . 8.F. 91.9 4.5 17.5 31.0 43.6 6 31 17.56 0.30 40 Beeael . . 983 46.5 9.5 93.0 36.5 49.9 6 37 29.94 + 18.80 -4 5.38 -18.50 Remarks. Sight vi-r> fair for observations almost throughout. The opinion liist formed respecting tbe magnitude ol the comparing star is unchanged. • Badly defined and unsteady. b Excellent. Results. MeanN. P. . . Mean 8. F. . . Ten transit* . . Ten transits . . h. m. s. . 5 2 36.49 . 5 11 06.45 m. i. Rev. — 6 3.150 .... —17.323 . . — 6 9. 178 .... 18.314 . . f // . . =5 37.68 . . =556.93 h. in. Correction for chronometer at 5 3 . Correction for chronometer at 5 11 . . 8. . . —37.47 . . -37.49 Santiago nil. time N. P h. m. «. . . 5 1 59 09 . . 5 10 48 96 Interval . . 8 49.94 A P. F. limb* in A. Variation of A. R. i Observed P. F. dian h. H. A«at 5 5 . . R. reduced to arc . ii 8m. 50t. . . . . . 14.58 . . + 4.60 19.18 A N. 8. limbs line, in rev Variation of declination in Hm. 50*. . Corr. for iliain . of micr. wire* . . . Observed N. 8. diameter 0.991—19.31 — 0.40 — 9.80 16.71 • Mi . 0.3B h. m. aV • at • U .1 \ \ 1 Mi \ 10, 1 • .11. £ d Object. Chronometer lime of transit. Mean of wires. Micr. Planet— Star. Thermometer*. A. R. C. D. E. A.. A*. Air. U.i. a. a. a. a. a. h. m. a. Rev. m. a. Rev. fed*, • • 1 ) ' • 3B6 41.9 54.5 7.5 81.0 33.7 355 7.98 -19.49 98.140 70.5 53.8 a Man . . N.P. 35.9 48.8 1.8 15.3 88.0 4 3 1.89 0.46 +7 54.94 + 18.01 Beeael ... 396 Man . . . 8.P. 40.0 35.7 S3.7 49.8 7.0 8.0 90.9 IS. 5 33.0 98.8 4 8 6.88 4 16 9.19 18.84 1.83 7 55.94 11.01 Ther. alt. TIM Bar. red. g x> r. Beaeel . . . 396 1 35.9 48.3 1.6 14.5 4 17 48.39 19.97 . ~ "'j 1 Man . . . N.P. 15.9 88.8 41.3 54.7 7.8 49541.32 0.87 753.00 19.10 Beeael . . . 3M 53.0 6.8 19.3 38.8 45.9 4 97 19.30 !.' ' . Man . . . 8.P. 4... 0.0 13.9 86.5 4 34 13.08 -1.69 +7 53.78 1 11.00 AT SANTIAGO DE CHILE. 55 JANUARY 10, 1 »:,(> < .Milin.i. ,1. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A. Ad. Air. Wet. 8. a. 8. 8. 8. h. m. s. Rev. m. s. Rev. Inches. ° • 9a Be*8el ... 396 36.5 49.7 3.0 16.3 39.0 4 37 2.88 —12.42 28.140 70.5 53.9 10 Man . . . N.P. 28.8 41.8 55.1 8.2 31.0 4 44 54.98 0.44 +7 52.10 +11.98 11 13 13 Bessel ... 396 Mare . . . S.F. Bessel ... 396 45.0 37.8 2.0 57.8 51.9 15.2 11.2 4.4 3H.5 24.5 17.6 41.5 37.2 30.3 54.3 4 47 11.14 4 55 4.26 4 58 38.30 13.16 1.19 11.92 7 53.12 10.97 Ther. att. 71°. 1 Bar. red. to 34° F. 28.024 146 Mars . . . N.P. 53.5 6.5 19.5 33.0 45.5 5 6 19.60 ±0.00 7 51.30 11.99 15 Berael ... 396 17.0 29.2 42.5 56.0 8.7 5 9 42.68 —6.83 16 1 Mara . . . S.F. 8.3 21.5 34.7 48.0 0.8 S 17 34.66 +4.12 751.98 10.95 17 Bessel ... 396 59.0 13.3 95.5 38. 8 11.5 5 19 35.40 —6.63 >. 18 c Man . . . N.P. 50.5 4.0 17.2 30.5 43.2 5 37 17.08 +5.26 7 51.68 11.89 19 Bessel ... 396 45.0 58.3 11.3 24.8 37.5 5 29 11.34 —6.16 20 Man . . . S.F. 36.3 49.8 3.0 16.5 99.9 5 37 2.94 +4.81 7 51.60 10.97 91 Beesel ... 396 19.0 32.5 45.3 58.5 11.5 5 38 45.36 —5.96 994 Man . . . N.P. 9.5 32.5 35.5 48.9 1.5 5 46 35.58 +5.93 7 50.22 11.89 93 Bessel ... 396 13.4 96.6 39.7 53.0 5.8 5 48 39.70 —5.79 94 Mara . . . S.F. 5.1 IS. 4 31.5 44.7 57.5 5 56 31.44 +5.19 7 51.74 10.91 93 Bessel ... 396 34.9 37.6 50.8 4.9 17.0 5 58 50.76 —5.45 * Man . . . N.P. 14.5 97.5 40.5 53.8 6.5 6 6 40.56 +6.40 7 49.80 11.85 97 Bessel ... 396 13.0 36.3 39.5 52.8 5.5 6 8 39.40 —5.39 98 Mara . . . S.F. 3.5 17.0 30.9 43.5 56.9 6 16 30.08 +5.54 7 50.68 10.93 29 Bessel ... 396 54.3 7.5 90.6 34.0 46.8 6 18 30.64 —5.28 30e Man . . . N.P. • • • • 9.5 23.0 36.2 6 26 9.79 +6.70 7 49.08 11.98 31 Bessel ... 396 40.0 53.2 6.5 19.8 39.5 6 99 6.40 —5.29 32 Man . . . S.F. 30.2 43.5 56.5 9.5 93.5 6 36 56.44 +5.56 7 50.04 10.78 33 Bessel ... 396 9.3 39.5 35.7 49.0 1.8 6 39 35.64 —4.91 34/ Man . . . N.P. 57.0 10.2 93.3 36 5 49.3 6 47 23.36 +6.89 7 47.62 11.80 3S Besse) ... 398 8.5 21.7 35.0 48.2 1.0 6 49 34.88 —4.95 »f Mars . . . S.F. 58.0 11.2 94.5 37.8 50.5 6 57 24.40 +5.90 +7 49.62 +10.85 Remarks. A bright, clear night, which renders all objects wonderfully distinct ; but a cold 8E. wind succeeding a warm day, creates currents in the air, nnd renders their images somewhat unsteady. Altogether, the night is a very fair one. The star is fully of the assigned magnitude, a Excellent. d Tolerably steady. b Very unsteady. , Indifferent. c Blazing. / Good. Results. h. m. s. m. s. Rev. i a Mean N. P. . . Nine transits . , . 526 1.55 + 7 51.004 . . .+ 11.935 . . . . =3 52.61 Mean 8. F. . . Nine transits . . . 53698.82 + 7 51.978 . . . + 10.930 . . . . = 3 33 03 h. m. 8. h. in. s. Correction for chronometer at 5 96 . . . . —40.38 Correction for chronometer at 5 36 . . . —40.39 5 35 48 43 Interval 10 27 26 A P. F. limbs in A. R. reduced to arc . . . 14.61 A N. 3. limbs micr. in rev . 1.005=19.59 Variation of A. R in 10m. 27i. . . , . . + 4 95 Variation of declination in lOwt 07 — 0 47 Observed P. F. diameter . . 19.56 Corr. for diam. of micr. wires . . . — 3.90 Observed N. S. diameter .... . . 16.92 h. m. I h. m. „ A p at 5 91 . . . 0.24 A p at 5 31 . 0.24 56 OPPOSITION OF MARS, 1849-50, JJ MM! 111. l«»0. C IT lime • • U »MMn llf M|. mm \t.,.. I' • ' -Slur. n__ i • ' ' ' " k Ohtccl. A. B. 0. D. E. Hllcr. Ac. At Otu. Air. *r« - a 1 •>__ i • • 1 •CT. in* •• BCT. i » •• - 1 BOM) . . . 396 48.8 9.5 15.8 98.3 41.9 3 48 15.39 —3.91 73.4 58.8 > Man . . . N.P. 56.8 11.8 94.8 1 1 50.8 35594.88 +5.56 +7 9.56 +8.77 3 4 I B«wl . . . 396 Man . . 8.P. B«wl . . . 398 50.3 0.5 98.0 3.3 13.5 41.3 16.5 98.5 54.3 99.8 40.0 7.8 49.5 59.8 90.5 4 0 16.56 4 7 26.86 4 11 54.38 —4.14 +3.58 —3.66 7 10.08 7.79 Ther. all. 79-. f> Bar. red. to 39- F. • Mm . . . N.P. 37.0 50.0 3.9 16.5 99.9 4 19 3.18 +5.07 7 8.80 8.73 7 Bewrl ... 396 37.3 50.7 3.8 17.9 99.9 4 91 3.98 —3.54 8 Man . . . 8.F. 0.6 13.5 97.0 39.5 4 98 13.54 +4.35 7 9.56 7.89 9 BrwH ... 396 96. S 10.0 93.0 36.5 49.9 4 3099.84 —3.43 10 Man . . . N.P. 5.3 18.5 31.5 44.8 57.5 4 37 31 .52 +5.99 7 8.68 8.65 11 Beoel . . . 396 54.5 7.5 90.8 34.0 46.8 4 39 90.79 —3.19 18 Mara . . . B.F. 3.5 16.5 99.5 43.0 55.7 4 46 99.64 +4.59 7 8.99 7.78 13 Bernl ... 396 S8.5 41.5 54.7 8.0 90.8 4 48 54.70 —3.04 14 Mare . . . N.P. 36.9 49.9 9.4 15.8 98.5 4 56 9.49 +5.69 7 7.79 8.73 15 BMK! ... 396 85.5 39.0 59.9 5.5 18.9 45859.08 —9.73 U Man . . . 8.K. 33.5 47.0 0.9 13.5 96.9 5 6 0.08 +4.99 7 8.00 7.65 17 Betwl ... 396 18.5 39.0 45.0 58.0 11.9 5 7 45.14 —9.44 IS Man . . . N.P. 95.8 39.0 59.0 5.9 18.0 5 14 59.00 +6.16 7 6.86 8.60 19 BCMCI ... 396 17.5 30.7 43.8 57.0 9.8 5 16 4:1.76 —4.07 20 Man . . . 6.F. 94.5 38.0 51.9 4.9 17.0 5 9351.18 +3.63 7 7.32 7.70 91 B«Md ... 316 7.5 S0.5 33.6 47.0 59.8 5 96 33.68 —4.09 99 Mare . . . N.P. 14.9 97.5 40.5 54.0 6.8 5 33 40.60 +4.58 7 6.99 8.67 93 Bevel ... 396 58.0 11.9 94.5 37.8 50.5 5 35 94.40 -3.60 Ma Mara . . . 8.F. 5.5 18.8 32.3 45.5 58.9 5 49 32.06 +4.03 7 7.66 7.63 95 Bewl ... 396 96.8 40.9 53.5 7.0 19.8 5 45 53.46 —3.49 96 Mara . . . N.P. 32.7 46.0 59.0 19.5 95.0 559 59.04 +5.15 7 5.58 8.57 97 88 Bern! ... 396 Man . . . B.F. 10.5 17.9 93.8 30.5 37.0 43.5 50.4 57.0 3.9 9.5 5 .'4 36.98 6 1 43.54 —3.38 +4.96 7 6.56 7.58 » BMW! ... 396 41.8 54.8 8.0 91.5 34.9 6 3 8.06 —3.93 X Man . . . N.P. 47.0 0.3 13.3 96.7 39.5 6 10 13.36 +5.33 7 5.30 8.56 31 B««Ml . . 396 14.0 97.0 40.3 53.8 6.5 6 11 40.39 -9.74 3i Man . . . S.F. 90.5 33.8 47.0 0.5 13.9 6 18 47. or +4.89 7 6.68 7.63 33 Bend ... 396 52.0 5.9 18.5 31.5 44.5 6 90 18.34 —3.08 34* Mara . . . N.P. 56.3 9.5 99.5 36.0 48.8 6 97 99.69 +5.40 7 3.98 8.46 35 B«MC| ... 396 40.7 54.0 7.9 90.5 33.4 699 7.16 —3.05 J6r Man . . . B.F. 47.0 0.0 13.9 96.3 39.5 6 36 13.90 +4.45 +7 6.04 +7.50 Remarks. l.irlii. haiy cirri over man of ihe northern and northeastern portion of the nky during nearly nil Ihr period of observation. The effect WM local oft" the flaring light "> often mentioned In Utoc mcanurcii, and to permit greater certainly in the contact*. a (Hazing. i 111 defined and uiuicadr. c Uniteady. Retulli. * Mean N. P. . . MM* B.F. . . Ninr Iran-Hi . . Nineinmlli . . h. m. t. . 5 14 7.74 . . 5 93 98.55 m. *. + 7 fl.987 + 7 7.809 Rev. . +B.638 . . . . . +7.675 . . I It . =2 48.35 . . sc 9 99.58 AT SANTIAGO DE CHILE. JANUARY 11, 1850-Continned. Results — Continued. 57 h. m. s. . —44.33 b. m. s. . . 5 13 23.41 . —44. as . . 5 22 44.23 . . 9 20.81 A P. F. limbs in A. R. reduced to arc . . Variation of A. R. in 9m. 21.. .... 13.53 . + 4.15 17.63 A N. S. limbs micr. in rev. . . . Variation of declination in 9m. 21*. . . 0.963 = 18.77 — 0.42 — 2.20 h. m. A p at 5 10 . . 0.18 Observed N. S. diameter .... h. m. A 0 at 5 IB 16.15 a . 0.16 JANUARY 13, 1850. i Chronometer time of transit. \| 1,. 1- Planet— Star. Bar. Thermometers. 1 Object. A. B. C. D. E. Biicr. A a. A*. Air. Wet. £ 1 i. i. a. •• l. n. m. a. Rev. m. 8. Hev. Inches. • • , Be««el ... 396 93.7 37.0 50.3 3.5 16.3 3 38 50.14 +1.65 38.066 74.5 59.2 9 MOT . . . N.P. 53.0 6.4 19.5 33.5 45.3 3 45 19.34 6.98 +6 39.30 +5.33 Ther. alt. 3 Beaael ... 396 93.5 35.5 48.6 3.3 15.0 3 48 48.76 1.60 73° .5 4 Mara . . . 8.F. 53.5 5.5 18.5 ' 33.0 44.7 3 55 18.64 6.11 6 39.88 4.51 Rar. red. to 32° F. 37.943 5 Bewel ... 396 37.0 49.8 3.0 16.5 99.9 358 3.10 9.19 6 Mara . . . N.P. 5.3 18.5 31.5 45.0 57.3 4 4 31.50 7.57 6 28.40 5.38 7 Bessel ... 396 13.6 97.5 41.0 54.5 7.9 4 8 40.76 0.38 8 Mara . . . 8.P. 43.6 57.0 10.9 23.5 36.9 4 15 10.10 4.83 6 39.34 4.45 'i BesKl ... 396 55.0 8.5 21.6 35.0 47.7 4 1891.56 1.98 10 Mara . . . N.P. • • 36.0 49.3 3.5 15.8 4 94 49.29 6.73 6 27. 73 5.44 11 Beaael ... 396 18.1 31.1 44.5 58.0 10.5 4 96 44.44 0.37 19 Mare . . . 8.F. 47.0 0.2 13.3 96.8 39.5 4 33 13.36 4.83 r, H •-! 4.46 13 Beiael ... 396 99.3 35.5 48.8 2.0 15.0 4 34 48.74 0.36 14 Mara . . . N P. 49.5 2.7 16.0 99.3 43.0 4 41 15.90 5^76 697.16 5.40 . 15 Bewel ... 396 95.5 38.8 59.0 5.3 18.0 4 43 51.92 0.44 16 Man . . . 8.F. 53.8 7.0 90.3 33.5 46.3 4 49 90.16 4.83 6 28.34 4.38 17 Bowel . . 396 36.3 49.5 9.5 16.0 98.8 4 51 9.60 0.68 18 Mara . . . N.P. 3.0 16.3 99.8 42.8 55.5 4 57 99.46 6.03 6 36.86 5.35 19 Besnel ... 396 40.8 54.3 7.6 91.9 33.8 5 0 7.54 0.95 90 Man . . . 8.F. 8.5 91.5 35.3 48.8 1.5 5 6 35.12 5.31 6 27.58 4.36 91 Bessel ... 396 48.8 3.0 15.9 28.5 41.9 5 8 15.14 1.13 93 Mara . . . N.P. 15.3 98.5 41.5 55.0 7.5 5 14 41.56 6.40 636.42 5.38 23 Benel . . 396 53.8 6.0 19.9 33.5 45.3 5 16 19.16 1.36 M Mara . . 8.F. 19.3 39.3 45.7 59.3 11.8 5 93 45.64 5.59 6 26.48 4.33 95 fl.-swl ... 396 0.5 13.5 97.0 40.5 53.3 5 34 36.94 1.39 96 Mara . . . N.P. 96.5 39.5 53.9 6.1 18.9 5 30 53.78 6.64 6 35.84 5.25 97 Bewel ... 396 5.7 19.0 39.3 45.5 58.9 5 32 33.13 1.50 38 Mara . . . 8.F. 33.3 45.8 59.3 12.5 35.3 5 38 58.98 5.81 6 36.86 4.31 99 Beaael ... 396 0.5 13.5 97.0 40.3 53.0 5 39 98.84 1.57 30 Mara . . . N.P. 96.0 39.2 53.3 5.5 18.2 5 46 52.34 6.92 6 35.40 5.35 31 Berne) ... 396 36.3 .'19..r. 52.5 6.0 18.5 5 56 52.56 1.73 33 Mara . . . 8.F. 53.0 5.5 18.8 33.9 45.0 6 3 18.70 6.00 6 26.14 4.97 33 Bewel ... 396 31.3 34.0 47.5 1.3 14.0 6 4 47.60 1.74 34 Man . . . N.P. 46.3 59.5 13.5 35.8 38.5 6 11 13.50 +6.93 +6 24.90 +5.19 OPPOSITION OF MABS, 1849-50, I C brononu let lime at Duul U Micr Planet— Sl;ir. Bar. I ',. 1 ,..., itirn. e Object. A. B. C. D. E. At. fcK Air. Wet. & b ID • !!••». m. 0. Re». Inchtt. • • 4 as Beste! . . . 3M 39.9 M.3 S.6 19.0 31.7 8 13 5.54 4.1.8! 98.066 74.5 59.9 36 Man . . . 8.F. 5.0 18.3 31.5 44.8 67. 5 8 1931.49 6.13 - < B.M +4.39 Tber. att 37 38 BMM! . . 396 Mm . . . N.P. 31.0 3.5 S9.5 18.5 5.2 99.5 19.0 43.3 31.8 98.0 891 3.50 6 97 99.74 1.77 6.95 694.94 S.18 73-. 5 Bar. red. to 32" K 37.943 J» Bea*ri . . . 396 41 .« 55.0 8.0 21.5 34.9 699 8.06 1.74 40 Mar. . . . 8.F. 7.0 ao.a 33.3 40.8 59.5 6 3533.38 +5.93 +699.30 +4.91 Remarks. Somewhat haxy, •>" fa»ornble to clear, .harp outline, of fijure. and apparent .teadinea. of motion. The measure, are pnerally rery food. Result*. h. m. «. . 5 6 97.43 m. a. Rev. + 6 28.615 .... +5.315 . . . . =143.58 . 5 15 58.55 + 6 97.452 .... +4.360 . . . . =124.96 h. m. 46 60 h. m. >. ..55 40.83 46 63 . . 5 15 11.93 . . 931.10 12 55 . 0.955—18.61 Variation of A. R. in 9». 31« . . + 3.W . . 16.40 Variation of declination in 9m. 31s. . Corr. for diam. of micr. wire. . . . — 0.43 — 2.90 15.98 b. m. A a at 5 9 . 0.11 h. m. A p at 5 19 H .... 0.09 JASTCARY 13, 1850. 8 Chronometer time of transit. Micr Planet— Star. 1 Bar. Thermometer.. Object. A. B. C. D. E. A«. A I. Air. Wet. 1 i .. m >. •• a. h. m. >. Rer. m. a. Rev. Inchet. • • i BMMl ... 396 54.3 7.5 90.5 34.0 47.0 34490.66 +1.59 97.976 77.3 61.5 9 Man . . . N.P. 45.8 59.0 19.3 35.3 38.0 3 50 19.06 3.83 +551.40 +9.94 Ther. att. 3 Be»*l ... 396 49.0 9.0 16.5 99.0 49.0 3 53 15.50 1.85 7S-.7 4 Mai. . . . 8.F. 41.5 65.0 8.0 91.5 34.3 3 59 8.06 9.95 569.56 1.10 Bar. red. to 3S° F. 97.849 6 Bewel . . 396 .1.5 16.5 99.5 43.5 56.6 4 1 29.90 9.13 6 Mara . . . N.P 8.0 91.9 34.5 47 .4 4 7 91 . 19 4.35 551.99 9.99 7 B«Ml ... 396 0.5 13.5 97.0 39.8 4 15 13.59 9.99 8 Man . . . B.P. 39.0 59.9 6.3 18.6 3.3 4 91 5.68 > 4.03 569.09 1.10 9 BeMl ... 396 17.0 30.3 43.5 57.0 9.8 4 99 43.69 , 9.96 10 Man . . . N.P. 7.5 91.0 34.9 47.6 0.9 4 98 34.08 5.08 560.56 9.13 11 B«Ml . . . 3BD 0.5 14.0 97.0 40.5 63.9 4 30 97.04 3.11 19 a Man . . . 8.F. 59.9 5.3 18.6 31.8 44.6 4 36 18.46 . 4.19 651.49 1.06 11 B«wrf ... 3*6 57.0 10.3 83.3 36.8 49.5 43893.3f> 0.50 14 Man . . N.P 47.0 0.9 13.4 96.6 3U.5 4 44 13.38 +9.69 +5 49.94 +».i a AT SANTIAGO DE CHILE. 59 JANUARY 13, 1850— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. rherinometers. A. B. C. D. E. A a. Aj. Air. Wet. 8. 8. 8. 8. 8. ' ll. 111. 8. Rev. 111. S. Rev. Inches. O O 15 Bessel ... 396 26. 3 39.5 52.7 6.0 18.7 4 45 52.64 +0.43 27.976 77.3 61.5 16 Mars . . . S.F. 17.0 30.3 43.5 56.9 9.6 4 51 43.46 1.53 +5 50.82 +1.09 17 18 b 19 Bcssel ... 396 Mare . . . N.P. Bef8tl ... 396 56.3 45.0 52.0 9.2 58.1 5.0 32.5 11.2 18.3 35.7 34.5 31.5 48.3 37.3 44.2 4 53 33.40 4 59 11.22 5 1 18.30 0.46 3.62 0.87 5 48.82 2.16 Ther. att. 73°. 7 Bar. red. to32°F. 27.849 30 Mara . . . N.F. 43.5 55.5 8.5 23.0 34.8 5 7 8.66 1.87 5 50.46 1.00 21 Bessel ... 396 25.3 36.8 51.8 5.0 17.8 5 851.74 0.93 23 Mars ... N.P. 14.2 27 -.5 40.5 53.8 6.5 5 14 40.50 2.95 5 48.76 2.03 23 Bessel ... 396 58.2 13.0 25.0 38.4 51.3 5 17 34.96 1.05 24 Mara . . . S.F. 48.6 2.0 15.3 28.5 41.3 5 23 15.10 9.11 550/14 1.06 - 35 Bessel ... 396 16.8 30.9 43.3 56.8 9.5 534 43.33 1.98 26c Mara . . . N.F. 6.0 19.3 33.5 45.5 58.5 5 30 32.36 3.32 5 49.04 2.04 27 Beisel ... 396 44.5 57. 7 11.0 94.5 37.0 5 32 10.94 1.31 38 Mara . . . S.F. 34.0 47.5 1.0 14.3 26.8 5 38 0.75 9.36 5 49.81 1.05 29 Bessel ... 396 9.5 22.8 36.0 49.5 3.3 5 39 36.02 1.60 30 Mat> . . . N.P. 58.5 11.6 84.7 38.0 50.7 5 45 34.70 3.58 5 48.68 1.98 31 Bessel . . 398 27.0 40.5 S3.5 6.9 19.7 5 46 53.53 1.59 33 Mara . . . S.F. 16.5 39.7 42.7 56.0 8.8 5 53 43.74 2.48 5 49.22 0.96 33 Bessel ... 396 0.5 13.7 27.0 40.3 53.0 5 5436.90 1.55 34 Mara . . . N.P. 48.5 1.5 15.0 38.0 41.0 6 0 14.80 3.53 5 47.90 1.06 35 Berne! ... 396 30.3 43.5 56.6 10.0 22.8 6 1 56.64 1.73 38 Mara . . . 8.F. 19.2 31.4 44.7 58.3 11.0 6 7 44.90 +2.71 +5 48.96 +0.98 Remarks. During the first hour, light cirri interposed, rendering the comparing star indistinct. The night was without much atmospheric fluctuation, and measures very generally good. a Clear. i Steady ; very good. f. Recorded 27. 5«. at wire C. Results. h. in. s. m. s. Rev. / /' Mean N.P. . . Nine transits . . 4 57 49.35 + 5 49.591 . . . . +2.099 . . . . =0 40.91 Mean H. K. . . Nine transit* ..56 30.86 + 5 50.531 . . . . + 1.047 . . . . =0 20.41 h. in. S. h. m. s. Correction for chronometer at 4 58 . ... — 49.10 Santiago nid. time \ P . 4 57 0.25 Correction for chronometer at 5 6 . ... — 49.11 Santiago sid. time 8 F 5 5 31 75 8 31.50 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 8m. 31t. . . Observed P. F. diameter . . . h. m A f at 4 54 14.10 + 3.14 17.24 0 04 A N. 8. limbs micr. in rev 1.052 = 20.50' Variation of declination in 8m. 31i. . . — 0.37 Corr. for diam. of micr. wires .... — 9.90 Observed N. S. diameter .... 17.93 h. in. at 5 3 0.02 60 OPPOSITION OF MARS, 1849-60, JTAKVARY 14, 1BSO. | »!.,.!. Chronometer lime of tranilt. M , • | • - Micr. Planet— Star. Bar. Thrrroomrtew. A. B. C. O. E. A a. it!. Air. Wei • §, >. h a. b. in. «. B«T. m. a. Kcr. 1- !..- • * 1 BNM! . . . 386 7.S 90.5 34.0 '47.3 59.8 3 38 33.76 -0.04 M U| 71.0 41.4 • 3 4 5 Mm . . . N.P. BMM! . . . 396 Man . . . 8.F. B«Ml . . . 396 9S.3 38.5 98.8 5.9 38.5 59.0 10.S 18.5 51.6 5.) 93.5 31.5 4.9 18.5 37.0 44.8 17.6 31.9 49.8 57.5 3 4351.58 347 5.08 35993.99 4 9 31 .50 —1.93 +4.33 9.91 4.41 +5 17.89 5 18.46 -1.18 4.19 Tim. an 79-. 0 Bar. red. ... a i- I7.M • Man . . . N.P. 9B.1 35.3 48.5 1.8 14.5 4 14 48.44 3.31 5 16.94 1.10 7 B«Mel ... 306 96.3 39.5 59.5 6.0 18.5 4 16 59.56 3.55 8 Man . . . 8.F. 44.9 57.7 10.7 94.0 3S.8 4 99 10.68 1.44 5 18.19 9.11 » Bd«l . . . 396 95.1 38.3 51.3 4.5 17.5 4 93 51.34 3.35 10 Mara . . . N.P. 41.8 54.8 8.0 91.4 34.9 499 8.04 9.33 5 16.70 1.13 11 Brmrt . . . 396 90.0 33.9 46.3 59.6 19.9 4 3046.96 3.45 19 Man . . . S.F. 37.8 51.0 4.0 17.3 30.0 4 39 4.09 1.43 5 17.76 9.03 13 Btwel ... 396 91.4 34.5 47.6 1.0 13.7 4 37 47.64 3.64 M Man . . N.P. 37.5 51.0 4.9 17.5 30.9 4 43 4.08 9.50 5 16.44 1.14 IS B«Ml ... 396 14.0 97.9 40.3 53.5 6.5 444 40.30 3.65 16 Man . . . 8.F. • • • • 58.5 11.0 93.5 4 49 56.49 1.59 5 18.19 9.08 17 BMMi ... 396 99.5 49.8 56.0 9.9 99.0 4 51 55.90 4.09 18 Man . . . N.P. 45.5 58.5 11.8 95.9 38.0 4 57 11.80 9.85 5 15.90 1.17 18 B«Ml . . •: 396 44.5 57.8 11.0 94.9 ,35.8 4 59 10.86 4.39 9ft Man . . . B.F. 1.9 14.5 97.5 41.0 53.8 5 4 97.60 9.14 5 16.74 9.05 91 Bcwel . . . 396 47.1 0.3 13.5 96.8 39.5 5 6 13.44 4.38 • Man . . . N.P. 9.4 15.7 99.0 43.4 55.0 5 11 98.90 3.15 5 15.46 1.93 93 BcMri ... 396 59.1 5.3 18.5 32.0 44.5 5 13 18.48 4.49 94 Man . . . 8.F. 8.5 99.0 35.0 48.5 1.9 5 18 35.04 9.98 5 16.56 9.91 • BMM! ... 396 58.3 11.8 95.0 38.5 51.9 5 90 94.96 4.76 91 Man . . . N.P. • • • • 40.5 53.5 6.9 5 95 40.39 3.58 5 15.33 1.90 97 B«wel ... 396 6.5 19.6 39.8 46.9 38.8 597 33.78 4.85 IB Man . . . 8F. 99.5 35.8 49.0 9.4 15.1 5 33 48.96 3.68 5 16.18 9.17 99 | 11.3 94.6 37.7 51.0 3.8 5 34 37.68 4.90 4» 30 « Man . . . N.P. 98.3 39.6 59.5 5.9 18.7 53959.60 3.58 5 14.99 1.39 31 Bonl ... 396 14.8 98.9 41.9 54.5 7.9 5 41 41.18 4.99 • Man . . 8.F. 30.8 44.0 57.9 •10.5 93.9 5 46 57.14 9.67 5 15.96 9.39 33 B«MCl ... 396 99.0 3S.3 48.5 1.5 14.5 54848.36 5.19 34 Mara . . . N.P. 36.3 50.3 3.9 16.5 99.9 554 3.10 3.86 5 14.74 1.33 as BMM! ... 396 17.6 31.0 44.0 57.3, 10.3 55544.04 5.59 M Man . . . B.F. 33.5 46.8 0.0 13.5 • I 6 1 0.00 3.35 5 15.96 9.94 17 BMM! ... 396 97.0 40.9 53.4 6.8 19.5 6 9 53.38 3.17 •-- Man . . . N.P. •11.4 54.8 7.8 91.3 34.0 6 8 7.86 1.94 5 14.48 1.93 31 B*»H ... 386 38.7 59.0 5.9 18.5 31.0 6 11 S.OB 3.70 «• Man . . . 8.F. 53.5 7.0 90.9 33.5 46.9 6 16 90.08 1.43 5 15.00 9.97 41 BtMd . . . 396 58.0 • 99.5 36.0 48.3 6 18 99.49 4.01 49 Man . . . N.P. 9.8 93.3 36.3 49.8 9.5 69336.34 9.70 5 13.93 1.31 43 Brorl . . . 3M 59.0 19.9 95.3 38.6 51 ..'. 69595.33 3.99 11 ; Man . . . 8.F. B«. 396 13.7 97.0 •T..S 40.9 48.7 53.5 9.9 6.9 15.0 8 30 40.19 6 33 48.7V 1.71 3.45 5 14.80 9.93 4t Man . . . N.P. • • 49.5 9.5 15.8 96.5 6 38 9.99 +9.10 +5 13.44 -1.95 AT SANTIAGO DE CHILE. 61 JANUARY 14, 185O— Continued. No. for reference. Object. Chronometer time of transit. . Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A I. Air. Wet. 8. S. 8. 8. 8. h. m. 8. Rev. m. 8. Rev. Inches. • « 47 Bessel ... 396 54.5 7.8 31.0 34.0 47.0 6 40 20.86 +3.83 28.110 71.0 61.4 48 Mars . . . 8.F. 32.0 35.2 48.8 1.5 6 45 35.27 +1.66 +5 14.41 —2.17 Remarks. Bright nnd cloudless, with rapidly cooling atmosphere, the planet flaring and unsteady during nearly all the observations. a Good. Results. h. m. s. m. x. /Rev. i it Mem N. P. . . Twelve transits . . 5 17 24.59 + 5 15.502 . . . — 1. 316 . . . . =0 23.70 Mean 8. F. . . Twelve transits . 53445.08 + 5 16.512 . . . —2.165 . . . . =848.30 h. m. 0. h. m. s. Correction for chronometer at 5 17 . . . . —51.43 . . 5 16 33.16 Correction for chronometer at 5 35 . . . . —51.44 Santiago aid. time 8. P. .... . . 5 23 53.64 7 30.48 it // A P. F. limbs in A. R. reduced to arc . . . 15.15 A N. S. limbs micr. in rev . 0.949 = 18.50 Variation of A.R. in 7m. 20« . . +2.42 Variation of declination in 7m. 20>. . — 0.31 . . 17.57 Corr. for diarn. of rnicr. wires . , . — 3.20 Observed N. S. diameter . . . 15.99 b. m. it h. m. // A o at 5 14 . 0.03 A a at 5 31 . 0.04 JAITUART 15, 185O. No. for reference. Object. Chronometer time of transit. Mean of wiren. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A* Air. Wet. s. 8. s. s. •. b. m. s. Rev. m. i. Rev. Inches. 0 0 1 Bewel ... 396 44.2 57.4 10.3 24.0 36.6 4 3 10.50 +8.61 28.091 76.0 62.7 S Mars . . . N.P. 31.5 44.7 57.7 11.2 94.0 4 7 57.82 2.37 +4 47.32 —4.24 3 4 5 Becse) ... 396 Mara . . . B.F. Bessel ... 396 19.4 7.4 4.5 32.5 20.8 17.8 45.5 33.8 30.8 59.0 47.6 44.9 11.8 0.0 57.0 4 11 45.64 4 16 33.92 4 18 30.86 6.51 1.19 6.87 4 48.28 5.32 Ther. alt. 75°. 2 Bar. red. to 32° F. 27.963 8 Mars . . . N.P. 51.0 4.5 17.5 30.8 43.5 4 23 17.46 2.58 4 46.60 4.29 7 BesKl ... 396 35.5 48.5 1.7 15.0 38.0 4 25 1.74 7.11 8 Mara . . . 8.F. 92.7 36.3 49.3 3.7 15.5 4 29 49.30 1.87 4 47.56 5.34 • Benel ... 396 4.8 18.0 31.1 44.5 57.3 4 31 31.14 7.33 10 Mars . . . N.P. 51.5 4.7 17.8 31.3 44.1 4 36 17.88 2.92 4 46.74 4.41 11 Bessel ... 396 35.5 48.7 1.8 15.3 28.0 4 38 1.86 5.66 12 Mars . ... 8.F. 93.0 36.2 49.4 2.6 15.5 4 42 49.34 0.41 4 47.48 5.25 13 Bessel ... 396 2.0 15.1 28.3 41.5 54.3 4 44 28.24 5.41 14 Mars . . . N.P. 48.3 1.5 14.7 38.0 40.7 4 49 14.64 1.11 4 46.40 4.30 U Bessel . . . 396 37.7 50.8 4.0 17.4 30.3 4 51 4.02 5 66 16 Mars . . . 8.F. 24.7 38.0 51.2 4.5 17.3 4 55 51.14 0.37 4 47.12 5.39 17 Bessel ... 396 3.5 16.9 30.2 43.5 56.1 4 57 30.04 5.83 18 Man . . . N.P. 49. 5 2.6 15.7 29.0 42.0 5 3 15.76 + 1.44 +4 45.72 —4.39 62 OPPOSITION OF MARS, 1849-50, JA \l lit r i*v,i H.-.O -C oiitli ....I. . * Planet— -Star. 1 • ' • r ''.,.• • i - i. - • . Mtcr. Bar ObjMU A. B. 0. £. A«. At Air. Wet. • R»v Rev. i • • nev. ni- •• i , , r- - . 1» Pt|rrt . a* 33.0 46.9 59.9 19.7 95.4 A 359.30 +5.98 98.091 76.0 69.7 90 Man . . . B.F. 90.0 33.9 46.3 59.5 19.5 5 8 46.30 0.65 +4 47.00 -5.33 Tlwr.au. 91 aia B«*el ... 3K Man . . . N.P. 3.5 47. S 16.8 1.5 99.8 14.5 439 98.0 58.0 40.5 5 10 99.86 5 15 14.40 6.93 1.76 4 44.54 4.47 a •-• Bar. re*, to a r. 97.983 93 Be»el ... 396 38.0 51.9 4.3 17.8 30.5 5 17 4.38 6.35 M •fan . . . B.F. 94.7 38.9 51.3 4.5 17.5 5 91 51.34 0.99 4 46.88 5.43 95 Bwel ... 396 54.0 7.9 90.4 33.8 46.3 59390.34 6.45 96 Man . . . N.F. 39.5 53.0 6.3 19.4 33.9 598 6.08 3.03 4 45.74 4.49 97 Bcaad . . . 396 14.6 97.7 41.0 54.3 7.0 5 39 40.99 6.55 98 Man . . 8.F. • • 14 5 97.5 40.8 53.5 5 34 97.47 1.18 4 46.55 5.37 99 B«Ml ... 396 50.5 3.6 16.8 30.5 43.1 5 36 16.90 6.63 30 i Man . . . N.P. 36.0 49.9 9.5 15.8 98.5 5 41 9.40 9.90 4 45.50 4.43 31 Re«Ml ... 396 45.7 59.0 19.3 95.7 38.5 5 43 13.94 7.09 32 Man . . . B.F. 39.5 45.5 58.8 19.9 95.0 5 47 58.80 1.60 4 46.56 S.49 33 Benel ... 396 11.5 94.5 37.7 51.1 3.7 5 49 37.70 6.95 34e Man . N P 8.5 91.6 35.0 47.8 5 54 31.69 9.49 4 43.99 4.53 35 Bevel ... 396 35.5 48.8 9.0 15.3 98.0 5 56 1.99 6.95 38 Man . . . B.F. SI. 3 34.5 47.5 1.0 13.7 6 0 47.60 1.49 4 45.68 5.53 374 BeaKl ... 396 54.4 7.5 90.8 34.9 46.8 6 9 30.74 7.09 38« Mara . . . N.P. 39.3 52.4 5.5 18.8 31.5 6 7 5.48 9.48 4 44.74 4.54 39 BMM! ... 396 8.4 at .5 34.8 48.0 0.5 6 834.64 7.19 40 Man . . . B.F. 54.0 7.0 90.9 33.6 46.4 6 13 90.34 1.63 4 45.80 5.49 a BefMl ... 396 93.5 36.8 50.0 3.9 16.0 6 14 49.90 7.39 49 Man . . . N.P. 8.0 91.3 34.5 47.8 0.5 6 19 34.49 9.87 4 44.53 4.45 43 Benel ... 396 46.5 &9.B 13.0 98.5 39.0 6 91 12.99 6.15 44 Man . . . B.F. 39.0 45.9 58.5 11.8 94.5 8 95 58.40 0.70 4 45.48 S.4S 45 BCMTI . • . 396 &9.3 19.5 95.5 39.0 51.5 6 9795.56 6.49 48 Man . . . 8.P. • • 56.5 9.5 93.0 36.0 6 39 9.65 1.04 4 44.09 5.38 47 BeMel . . 396 58.0 9.5 99.6 36.5 49.0 6 3599.76 6.53 48 Man ... N.F 41.5 66.0 8.9 91.6 34.3 6 40 8.12 +1.95 ,-4 45.36 —4.58 A remarkably clear niftil, witbnul the •uoofbout. a Umteady. t steady. r Very good. Remarks. vi.iblc baxe or cloud, and the .tar. -Inning with nninual luMre. The observations an very fair i Micrometer recorded t 8 09 rev. t Uood. Mean N.P. . . Eleven tnnntu . Mean B. F. . . Eleven traiuiu . Mean B. P. . . One tnnwt . . Mean N. F. . . One trnn.lt . . b. in. Correction for chronometer at 5 15 . Correction for chronometer at 5 9i . h. m. i. . . 5 14 57.09 . . 5 91 39.43 . . 6 33 9.65 . . 6 40 8.19 b. m. a. . — 54.05 . - 54.08 5 14 3 04 Resultt. m. «. + 4 45 613 Rev. -4 406 . . — 1 25.87 4 46.745 .... 4 44 090 5.375 . . I :i-'i . . 1 44.76 . . 1 44.85 — 1 99.96 h. m. Correction for chronometer at 6 32 . Correction for chronometer »t 6 40 . b. m. ". . - 54.19 54.90 6 31 15.46 Santiago rid. time H, F S 90 45.37 6 42.33 Kantii«o«irt time N. F. Interval . . . . 6 39 13.92 7 58.46 Interval AT SANTIAGO DE CHILE. 63 JASTTARY 15, 185O— Continued. Results — Continued. A P. F. limbs in A. R. reduced to arc . . Variation of A. R. in 6m. 42s Observed P. F. diameter 16.98 . + 1.95 18.93 A \. 8. limbs micr. in rev Variation of declination in 6m. 42s. . Corr. for diani. of micr. wires . . . . 0.969 = 18.89 — 0.29 — 2.20 16 40 A P. P. limbs in A. R. reduced to arc . . 19.05 . — 2.34 A N. S. limbs micr. in rev Variation of declination in 7m. 58s. . . 0.800 = 15.59 + 0.35 Observed P. F. diameter ... . . 16.71 Corr. for diani. of micr. wires . . . — a. 20 13.74 h. m. A p at 5 12 . . /< 0.09 h. m. A 0 at 6 29 // 0 12 A o at 5 18 0.11 A p it 6 37 0.11 JANUARY 16, 1850. I Chronometer time of transit. lean of wires. Micr Planet — Star. P 'hermometers. 1 Object. A. B. C. D. E. A a. At DWi Air. Wet. g £ d l. i. •• l. 0. b. m. >. Rev. m. i. Kev. Inches. O O . 1 Beuel ... 396 41.3 54.5 7.6 31.9 33.8 350 7.68 +8.73 38.039 74.5 61.0 3 Man . . . N.P. 3.5 15.8 38.8 42.0 54.8 35428.78 1.43 +4 31.10 -7.30 Ther. att. 3 Beuel ... 398 33.0 36.0 49.0 2.5 15.2 3 56 49.14 8.93 73°. 7 4 Mara . . . 8.F. 44.6 58.0 11.1 34.5 37.3 4 1 11.10 0.64 4 31.96 8.39 Bar. red. to 32° F. 27.912 5 Beuel ... 396 11.8 35.0 38.0 51.5 4.5 4 4 38.1« 9.55 6 Man . . . N.P. 33.5 45.7 58.7 13.1 94.7 4 8 58.74 9.18 4 90.58 7.37 7 Bessel ... 396 18.0 31.3 45.0 58.5 11.0 4 10 44.76 9.58 1 Man . . . S.F. 40.6 53.6 6.8 20.3 33.2 4 15 6.90 1.95 4 33.14 8.33 9 Benel ... 396 13.1 36.3 39.5 53.8 5.2 4 16 39.36 9.95 10 Man . . . N.P. 33.7 47.5 0.5 13.5 26.3- 4 21 0.30 9.59 4 20.94 7.36 11 Beuel ... 396 22.3 35.3 48.5 1.3 U.5 4 S3 48.38 9.06 19 Man . . . 8.F. 43.7 57.0 10.0 33.5 36.3 437 10.10 0.74 421.73 8.33 13 Beuel ... 396 31.5 34.7 48.0 1.3 14.0 4 38 47.90 8.88 14 Man . . . N.P. • • 55.3 8.3 91.5 34.3 433 8.33 1.49 4 30.33 7.39 15 Benel . . 396 46.5 59.8 13.0 36.5 39.0 4 40 13.96 9.17 16 Mara . . . S.F. 7.7 31.3 34.0 47.5 0.5 4 44 34.18 0.74 4 21.22 8.43 17 B0*a»I *XM tfmfl ... ow 33.3 46.5 59.5 13.0 35.3 4 45 59.60 9.49 H Mara . . . N.P. 53.3 6.5 19.7 33.0 45.7 4 50 19.62 1.94 4 20.03 7.48 19 Beuel ... 396 38.8 43.2 55.2 8.5 21.2 4 51 55.18 9.50 90 Man . . . S.F. 50 Jl 3.5 16.5 30.0 43.5 4 56 1C.S6 1.13 4 31.38 8.38 91 Bessel ... 396 26.2 39.3 53.5 6.0 18.6 5 0 53.59 9.73 93 Mara . . . N.P. 45.5 59.0 12.3 95.8 38.5 5 5 13.23 3.38 4 19.70 7.45 93 Beuel ... 396 38.3 41.5 54.5 8.0 30.5 5 6 54.54 9.86 94 a Mara ... S.F 49.0 2.2 15.3 38.6 41.3 5 11 15.28 1.40 4 30.74 8.46 95 Beuel ... 396 48.0 1.3 14.5 97.8 40.5 5 13 14.43 10.01 36 Mara . . . N.P. 7.5 90.5 34.0 47.5 0.2 5 17 33.94 2.51 4 19.52. 7.50 97 Beuel ... 396 0.0 13.4 26.5 39.8 52.5 5 19 26.44 10.32 28 Mara . . . 8.F. 31.0 34.3 47.5 0.5 13.5 5 23 47.34 1.78 4 20.90 8.44 39 Bewel ... 396 10.0 23.7 37.0 50.3 3.0 5 25 37.30 10.30 304 Man ... N.P 33.5 45.8 58.7 12.2 95.0 5 29 58.84 2.74 4 21.54 7.58 31 Beuel ... 396 35.0 88.3 51.9 4.5 17.5 5 31 51.98 9.47 * Man . . . S.F. 44.5 58.5 11.5 35.0 37.7 536 11.44 +0.99 +4 20.16 —8.48 64 OPPOSITION OF MARS, 1849-60, g rliriiniMilftrr timr of Iran-it. Planet— Blar. Tbrrmoateten. M 'i • v Micr I'. . r 1 Object. A. B. C. D. E. Aa. A A Air. W ! 4 Re». IU. 1. ROT. 1: i. -. • • 31 Hemtl . . . 3H 48.0 1.4 14.6 98.0 40.5 5 38 14.50 +9. .15 • m 74.5 61.0 M« Man . . . N.P. 7.5 90.5 33.5 46.8 59.7 5 43 33.60 9.04 +4 19.10 -7.51 Tlier. att. as Be»el . . . 396 49.9 55.9 8.4 91.8 34.5 5 44 8.49 9.65 73V 7 a Man . . . 8.F. 1.7 15.5 98.5 41.8 54.8 54891.46 1.18 4 90.04 8.47 Bar. rat toli r 97.919 37 B«wl ... 396 46.0 59.4 19.9 95.8 38.3 5 50 19.34 9.90 mt Man . . . N.P. • • 18.3 31.9 44.5 57.9 5 54 31.90 9.30 4 18.86 7.60 m Bewel ... 386 e.o 91.0 34.3 47.5 0.9 55634.90 9.99 ¥> Man . . . S.F. 87.5 41.0 54.3 7.5 90.3 6 0 54.19 1.49 4 19.92 8.57 41 Bend ... 396 5.9 18.6 31.5 45.0 57.7 6 9 31.60 10.59 41 Mara . . . N.P. 34.3 37.5 50.5 3.5 16.5 6 6 50.46 9.93 4 18.86 7.60 43 Bewel ... 396 9.3 99.5 35.5 49.0 1.5 6 835.56 8.76 44 Man . . . B.F. 99.0 49.9 55.5 8.7 91.5 6 19 55.38 0.19 4 19.89 8.57 45 Be*acl ... 396 14.9 97.5 40.6 54.0 5.8 6 14 40.49 8.44 46 Man . . . N.P. 39.9 45. 1 58.8 19.9 95.0 6 18 58.66 0.84 4 18.24 7.60 47 Bevel ... 386 11.0 94.9 37.5 00.6 3.5 6 90 37.36 8.57 48 Man . . . S.F. 30.0 43.5 56.5 9.8 99.5 6 94 56.46 0.03 4 19.10 8.54 49 Bern! ... 386 49.0 55.9 8.3 91.7 34.5 697 8.34 8.61 SO Mara . . . N.P. 59.8 13.0 96.0 39.3 59.0 6 31 96.09 0.95 4 17.68 7.66 51 1' > i 396 57.0 10.9 93.4 36.8 49.5 6 33 93.38 9.31 • Man . . . B.F. • • 99.7 49.5 56.0 8.5 6 37 42.57 0.73 4 19.19 • 8.58 53 Beaael ... 396 91.5 34.5 47.5 1.0 13.6 6 39 47.69 8.98 54 Man . . . N.P. 39.0 59.1 5.4 18.6 31.3 6 44 5.98 +1.93 +4 17.66 —7.65 Remarks. Until tbe planet paned the mciidinn, there wa» much flickering light and unsteadiness of motion. No cloud visible, and only a dry haze over the valleyi; yet, even nan near tbe zenith could not be seen with the distinctness of last night, a More Heady. c Steady, i An evident Blip or the teleacope in A. R. Rejected. d Perfectly Heady. Mean N. P. . . Thirteen tranniti . Results. h. m... 5 90 42.08 5 91 34 61 m. «. Rev. -|-4 19.499 .... —7.498 . •f. 4 90 638 8 451 ; ; . . . =996.14 — 9 44 71 h. m. Correction for chronometer at 5 91 . •. . . —56.68 h. m. >. . . . 5 19 45.40 . . —56.68 . . . 5 90 37.93 . . . 59.53 A P. F. limb* injt. R. reduced to arc . // . . 18.13 . . 0.953—18.57 Variation of A. R. in 53>. . . + 0.99 Variation of declination in 53t. . . — 0.04 OhMrred P. P. diameter . . 18.35 . . — 9.90 b. m. A f at 5 18 . . // .0.16 Observed N. 8. diameter . h. m. A pat 5 18 . . 16.33 • . 0.18 AT SANTIAGO DE CHILE. 65 JANUARY IT, 185O. g Chronometer time of transit. Micr. Planet— Star. Thermometers. Object. A. B. C. D. E. A a. A ,!. Bar ar. Air. Wet. 1 s. 8. s. 8. 8. h. in s. Rev. m. s. Rev. Inches. > • i Bessel ... 396 55.8 9.2 32.9 35.7 48.5 3 48 22.28 +7.14 28.045 71.1 59.9 9 Mare . . . N.P. 54.7 8.0 21.0 34.3 46.8 3 53 20.96 —3.20 +3 58.68 —10.34 Ther. att 3 I ... 396 59.0 12.5 95.5 38.9 51.5 3 54 25.48 +3.72 70". 7 4 Mare . . . S.F. 58.5 11.7 24.8 38.3 51.0 3 58 24.86 -7.56 3 59.38 11.98 Bar. red. to32°F. 27.931 5 Bessel ... 396 29.0 42.3 55.5 9.0 21.7 4 0 55.50 +4.17 6 Mare . . . N.P. 97.3 40.5 53.6 7.0 19.8 4 4 53.64 -6.24 358.14 10.41 7 Bessel ... 396 98.3 41.5 54.5 7.9 19.6 4 6 54.36 +4.39 8 Mare . . . S.F. 97.5 40.8 54.0 7.2 20.0 4 10 53.90 —6.98 3 59.54 11.37 9 Bessel ... 398 93.8 37.0 50.2 3.5 16.2 4 12 50.14 +4.65 10 Mars . . . N.P. • • 35.2 48.2 1.4 14.3 4 16 48 17 —5.68 3 58^03 10.33 11 Bessel ... 396 V.6 20.6 33.8 47.4 0.2 4 18 33.99 +4.91 12 Mare . . . S.F. 6.6 19.8 33.0 46.3 59.0 4 22 32.94 —6.44 3 59.02 11.35 13 Bessel ... 396 51.5 4.9 18.1 31.9 44.0 4 24 17.94 +5.05 14 Mare . . . N.P. 49.5 9.5 15.5 28.8 41.3 4 98 15.59 —5.40 3 57.58 10.45 15 Bessel ... 396 10.5 94.3 37.3 51.5 3.5 4 34 37.49 +5.30 16 Mare . . . g.F. 9.7 93.0 36.0 49.5 9.2 4 38 36.08 —6.15 358.66 11.45 17 BnsKel ... 396 1.0 14.2 97.3 40.5 53.9 4 40 27.24 +5.50 18 Mare . . . N.P. 58.3 11.4 24.6 38.0 50.8 4 44 24.62 —4.97 357.38 10.47 19 Bewel ... 396 14.6 97.8 41.0 54.3 7.0 4 48 40.94 +5.74 90 M«re . . . S.F. 13.0 96.0 39.2 52.5 5.2 4 5239.18 —5.73 3 58.24 11.47 91 Beimel ... 396 0.1 13.3 26.3 39.6 59.3 4 54 26.32 +6.09 92 Mare . . . N.P. 56.0 9.5 33.0 36.5 4t.l 4 5822.84 —4.30 3 56.52 10.39 33 H'-^t . . 395 2.3 15.5 98.9 41.8 54.5 5 0 28.48 +6.28 34 Mars . . . S.F. 0.9 13.4 26.5 40.0 52.6 5 4 26.54 —5.21 358.08 11.49 95 Bessel ... 396 34.0 47.9 0.9 18.7 96.5 5 6 0.39 +6.43 26a Mare . . . N.P. 31.0 44.9 57.5 10.7 93.5 5 9 57.38 —4.09 3 57.06 10.52 •'.-. Bessel ... 496 13.3 36.5 39.5 53.0 5.6 5 11 39.58 +5.72 98 Mare . . . 8.F. 11.5 24.7 37.9 51.0 3.8 6 15 37.78 —5.84 3 58.20 11.56 99 B(*i*sei . . . 396 58.0 11.8 94.2 37.4 50.5 5 17 21.38 +5.66 Ml Mare . . . N.P. 55.3 8.5 91.6 34.8 47.5 591 91.54 —4.90 3 57.16 10.56 31 Bessel ... 396 35.0 48.3 1.5 14.7 27.5 5 23 1.38 +5.76 as Mare . . . S.F. 33.3 46.5 59.5 13.0 25.5 S 26 59.56 —5.67 3 58.18 11.43 33 Bessel ... 396 23.5 36.5 49.8 3.2 16.0 5 38 49.80 +5.90 34 Mare . . N.P. 30.9 33.5 46.5 0.0 13.7 5 32 46.58 —4.66 3 56.78 10.56 55 Bessel ... 396 6.5 90.0 33.0 46.5 59.0 5 34 33.00 +5.87 36 Mare . . . S.F. 4.4 18.0 31.0 44.5 57.3 5 38 31.02 —5.54 3 58.03 11.41 37 c Befttl ... 396 12.0 ,35.0 39.0 52.5 5.3 5 40 38.74 +6.08 38 if Mars . . . N.P. 9.5 22.8 35.8 49.0 1.8 5 44 35.78 —4.56 3 57.04 10.64 38 Besiiel ... 396 13.6 27.0 40.0 53.4 6.1 5 46 40.02 +6.16 40 Mare • . . . 8 F. 11.5 24.7 37.8 51.2 3.8 5 50 37.80 —5.39 3 57.78 11.55 41 Benel ... 396 2.0 15.3 28.3 41.5 54.2 5 5298.92 +6.26 4S Mare ... N.P. 58.9 11.4 24.6 37.8 50.5 5 56 24.50 —4.37 3 56.28 10.63 43 Bruel ... 396 56.3 9.5 22.6 36.0 48.5 5 58 22.58 +6.28 44 Mare . . . S.F. 53.8 7.2 20.2 33.5 46.3 6 220.18 —5.27 3 57.60 11.55 45 ... 396 43.7 57.2 in.: :i 93.5 36.3 6 4 10.18 +6.22 « Mar. . . . N.P. 40.9 53.4 K.r, 19.8 32.5 6 8 6.58 -4.46 +3 56.40 — 10.H8 66 OPPOSITION OP MARS, 1849-60, .1 VM XKY 17, I85O- Continued. No. fin Object. nnini'lcr liln. Mean of trim. Mlcr. Planet — Star. Bar. •neter*. A. B. C. H. E. A *. A A Air. XV el. • - -. •. • - h. m. •. Her. m. a. I!, v- • • 47 B~Ml ... 306 M.e 57.3 50.5 3.8 16.5 6 950.53 +0.39 : 71.1 48 Mara . . . 8.F. SI. 3 34.5 47.8 1.8 I3.< 6 13 47.68 -5.91 +3 57.16 —11.60 49 Mr SI BMM! ... 3*6 M»n . . . N.P. Bewil . . . 386 91.3 I7.S 3.3 34. 5 30.5 15.5 47.5 43.5 98.6 1.0 57.0 49.9 13.7 9.6 54.5 6 15 47.60 6 19 49.6-2 6 91 SB. 63 6. TO —4.39 +6.47 3 56.03 10.63 Then. nn. 70'. 7 Bar. red. 27.931 98 Mara . . . 8.F. S9.S 14.5 95.6 38.8 51.5 69535.59 —5.17 356.96 11.64 S3 B«Ml ... 396 44.0 57.5 10.5 94.0 36.5 6 87 10.50 +6.58 M Mara . . . N.P. 39.8 53.0 6.9 19.5 33.3 631 6.14 -4.10 3 55.64 10.68 55 Bcaael ... 396 48.5 9.0 15.5 38.8 41.9 6 37 15.30 +6.30 98 Man . . . S.F. 45.8 59.0 12.0 25.5 38.2 6 41 11.96 —5.35 358.78 11.65 S7/ Bern! ... 396 13.0 36.0 39.3 53.8 5.5 6 44 39.23 +6.90 58 Man . . . N.P. 8.8 81.8 35.0 48.3 1.0 6 4834.98 —3.80 355.74 10.70 59 Bewel ... 396 3S.S 48.8 9.0 15.5 88.0 6 50 1.96 +6.S8 00 Mara . . . 8.F. 39.0 45.3 56.5 11.6 94.5 6 53 58.40 -5.49 +3 56.44 -11.77 Remarks. Mara wa> extremely unsteady and Airing during the early pan of Die evening; but shortly after passing the meridian, and until the close, all the nearara were made under favorable circumstances. a More steady. d Very steady. I Good. t Fine. r Recorded 13t. at wire A. / Recorded fJi. 43m. Results. Mean N. P. . . Fifteen transit* . . Mean 8. F. . . Fiiti-«-n transits . . h. m. s. . 5 19 50.85 . 59634.33 m. F. Rev. + 3 56.963 .... — 10.539 . + 3 58.003 .... —11.505 . . . . =3 35.33 , . . =344.33 h. in. Corri'i-tion for chronometer at 5 20 m. ». . —1 0.01 Santiago Rid. time N. P h. m. t. . . 5 18 50.84 . — 1 0.09 . . 5 35 34.91 . . 6 33.37 A f. F. limho in A. R. reduced to nrc . Variation of A. R. in Am. 33>. . . Observed P. F. diameter . . 15.00 . . +1.40 . . 17.00 A N. R. limbs iiiii'r. in rev. . . . Variation «f declination in 6m. 33k. Corr. for riinm. of micr. wires . rvi-d N. S. chamrtcr . 0.973=18.9* - o.ae — 3.20 16.50 h. m. A o at 5 17 . 0.33 h. m. A a at 5 83 . 0.34 JABTCARY 18. 1 v.ii. i I'lirnnoraeter lime of trani.it. Planet— Star. Thermometeri. - Vt Bar t Object. A. B. C. 1). i;. An. A*. Air. Wet. k J | fi e • s. l, H. h. m. i. Rev. m. a. Rev. Inches. . Z 1 Beswl ... 396 13.8 39.5 53.0 5.7 4 0 39.53 +5.91 . ._,,_, 70.5 55.4 9 Mara . . . N.P 51.4 5.5 18.5 31.8 44.5 4 4 18.34 -7.41 +338.83 —13.33 Ther. ntt. Bewl . . . 3M 17.5 30.5 43.5 57.9 7.8 4 6 43.70 +5.59 72°. 4 4 Mara . . . H.I- . . II. 0 33.8 37.9 50.0 4 10 33.90 -8.69 3 40.90 14.96 lt.it. r-.l 37.963 So B' ••«•! . . . 806 IS.O 38.5 41.5 :,:>.« 4 31 41.50 • • * Mara . . . N.P. 53.5 7.-J 80.8 33.4 46.0 4 3580.06 —7 33 +3 38.56 -13.33 AT SANTIAGO DE CHILE. 67 JANUARY 18, 185O— Continued. ^ Chronometer time of transit. Planet — Star. thermometers. '= ' Micr. Bar. • I Object. A. B C. D. E. A a. A° F. 27.952 11 Beawl ... 396 54.5 6.0 21.2 34.6 47.3 4 48 21.12 +6.44 12 Mare . . . S.F. 34.3 47.5 0.7 14.0 26.5 4 52 0.60 —7.89 3 39.48 14.33 13 Beaoel ... 396 11.3 24.5 37.8 51.1 3.7 4 53 37.68 +6.67 14 Mara . . . N.P. 16.0 29.5 4-2.2 4 57 16.06 —8.77 3 38.38 13.44 15 Beise! ... 396 29.5 43.5 55.5 9.0 2-2.0 4 59 55.74 +6.98 16 Mara . . . S.F. 7.2 20.2 33.5 46.5 59.9 5 3 33.32 —7.43 3 37.58 14.39 17 Benel ... 396 57.7 10.8 44.0 37.5 50.2 5 5 24.04 +7.10 W Mare . . . N.P. 34.5 48.3 1.7 14.8 27.5 5 9 1.34 — G.32 3 37.30 13.42 19 Basel ... 396 23.2 36.4 49.8 3.0 15.8 5 10 49.60 +7.27 30 Mara . . . 8.P. 2.5 15.5 28.7 .42.0 54.8 5 11 28.70 —7.22 339.10 14.49 •Jl Benel ... 396 50.0 4.0 16.8 30.5 43.2 5 16 16.90 +7.36 33 Mara . . . N.P. 29.3 4-2.5 55.5 8.7 21.5 5 19 55.50 —9.07 3 38.60 13.43 • Bewel ... 396 16.3 39.4 42.5 58.0 8.7 5 31 42.58 +7.50 . 24 Mara . . .s.F. 55.5 3.5 21.7 35.1 47.7 53521.70 -6.89 3 39.12 14.39 •25 Beuel ... 396 47.5 0.5 13.8 37.3 40.0 5 27 13.80 +7.72 M Mara . . . S.F. 96.7 53.0 6.2 19.0 5 305!. 94 —6.72 3 39.14 14.44 K B-s»el . . 396 3.0 16.5 29.7 43.0 55.7 5 33 29.58 +7.85 28 Man . . . N.P. 41.0 54.3 7.4 20.5 33.5 5 37 7.34 —5.46 3 37.76 13.32 89 Bewel ... 396 46.7 0.0 13.0 26.3 39.0 5 39 13.00 +8.02 30 Man . . . N.P. 24.5 37.8 50.8 4.5 17.0 5 43 50.92 —5.43 3 37.92 13.45 31 Beuel ... 396 4.0 17.7 30.3 43.8 56.5 5 44 30.44 +8.03 • Mara . . . S.F. 43.8 56.4 9.4 23.0 35.6 5 48 9.53 —6.41 3 39.08 14.44 33 Bexel ... 396 40.5 44.0 7.0 20.5 33.0 5 50 7.00 +8.20 34 Mara . . . N.P. 18.8 31.8 45.0 58.3 11.2 5 53 45.03 —5.37 3 38.02 13.57 35 Bc««el ... 398 4.3 17.5 30.5 44.0 56.5 5 55 30.54 +8.37 36 Mara . . . S.f. 43.2 56.5 9.3 22.5 35.5 5 59 9.38 —8.22 3 38.84 14.59 37 Bewel ... 396 25.0 38.0 51.2 4.5 17.0 6 0 51.14 +7.05 38 Mara . . . N.P. 2.5 15.5 38.5 42.0 54.5 6 4 28.60 -6.54 3 37.46 13.53 39 Beoel ... 396 45.0 58.5 11.5 24.8 37.5 6 6 11.46 +7.98 40 Man . . . S.F. 23.7 37.0 50.2 3.5 16.2 6 950.13 -6.76 3 38.66 14.74 41 Beuel ... 396 4-J.3 55.5 8.5 23.0 34.8 6 12 8.62 +7.16 4N Mara . . N.P. 19.5 32.5 45.8 59.4 12.3 6 15 45.88 —6.41 3 37.26 13.57 « Brswl ... 396 8.2 21.5 34.5 48.0 0.7 6 17 31.58 +7.20 44 Man . . . .•>.!••. 46.5 0 0 13.0 26.5 39.2 6 21 13.04 —7.31 3 38.46 14.51 45 Bexsel ... 396 14.5 27.7 40.8 54.1 7.0 6 23 40 82 +7.19 46 Man . . . N.P. 51.0 4.5 17.5 31.0 44.0 6 27 17.60 -5.39 3 36.82 13.58 47 Benel ... 396 0.5 13.5 96.5 40.2 53.0 6 39 36.74 +7.14 48 Mara . . . S.F. 38.5 51.5 4.5 18.2 31.0 6 33 4.74 —7.39 +3 38.00 —14.53 Remark*. A most uiilavor.iblu night fur obtervatioiirt, both objects being very unsteady throughout. O.K or two of the measure* towards the close- can In- regarded a< "good;*' rii'i oiin-t- •• lair '* only. a Mn-iuui'-t'T rr.-urclt-d -{-,">. i'9 n-v. 68 OPPOSITION OF MARS, 1849-50, JANUARY 18, 185O-<'ontliiu«l. Mran N. P. Mew 8. P. Twelve tnuuttfl Twi-In- i h. in. Correction for chronometer at 5 95 Concetion for clinuioinvu-rat .'• -"J Results. h. in. >. S 91 97.44 in - — 1 3.31 -1 3.34 hi. -. Rev. + 337.903 . . . —13.447 + 3 38.943 . . . —14.44* Santiago rid. time N. I'. . . . Santiago »id. time 8. P. . . . I 1. 1 -.>.il , =4 n.08 -I 4I.UI b. MI. -. 5 93 34.13 598 3.35 4 39.99 A P. P. limb* in A. R. reduced to arc Variation of A. R. in 4m. :»i. . . Obwnred P. P. diameter .... 15.57 + 0.84 16.41 h. in. A f at 5 99 0.98 A N. 8. limb* iiiii-r. in rt'V. \ :iri:iiiini "I il>-< Imalion in 4m. t'"rr. lor iliain. ot' mi. r. wire* Observed N. 8. diameter . . 1.009=19.53 — 0.19 - 9.90 17.14 h. in. A p at 5 96 , 0.30 .1 \ M \ It 1 19, 185O. 1 i Object. Chronometer time of tran-n. Mean of wire*. Micr. • Planet— Star. Bar. Tbcrnoiii' -ii i- A. B. C. D. E. A«. A i. Air. \\ , • b. m. «. Rev. m. m. Rev. Incbet. • • i 9 3 4 Mara . . „ N.P. BwaeJ ... 405 Man . . . 8.F. BMM! ... 405 12.7 14.0 41.5 96.0 97.5 54.5 55.5 38.8 40.5 7.5 8.5 59.3 54.0 91.0 91.6 4.8 6.5 33.5 34.9 4 48 38.99 4 59 40.50 5 19 7.60 5 16 8.35 +10.87 — 5.54 + 7.96 — 8.19 —4 1.58 —4 0.75 +16.41 +15.45 1 ,«M Ther. att. 69° .9 Ha/, red. : • 1 m •• • 67.5 56.0 Remarks. Much dry haze, with light cirri, and an eitrrmcly minute -tnr, combined to fru.^trati' i-ilorin to obnerve. There i> aim a difference in the observed and computed R. A. of the Mar, amounting to more than tifteeu seconds ; and we cannot eianiiiiv it for want of a copy of Bemel't Zones. Results. h. m. «. Mean N. P. . . . One transit ... 4 48 38.99 McuS.F. . . . i in.- train-it . . .519 7.60 h. m. m. i. Common for .•liionom.-ti-r ai 4 49 . . . — 1 6.52 Correction for chronometer at 5 U . . . — 1 6.57 — 4 1.510 -4 0.750 R.-v. + 16.410 + 15.450 Santiago «id. time N. P. Santiago Kid. time S. P. Interval .... = 5 19.83 = 5 1.19 b. m. •. 4 47 XI. 40 5 11 1.03 • - H A P. F. liuiliK in A. R. reduced to arc Variation of A. R. in -a,n. •&,. . . Obaerrcd P. P. diameter . h. m. A f at 4 M . 19.45 + 3.99 1J.74 6 N. 8. liinh.- ini.-r. in rev 0.960=18.71 Variation of derlinaiioii in 23m 99>. . . — 0.86 Corr. lor iliain. of inirr. wirea ... — 9.90 Observed N. S. diameter ... . 15.65 h. in. A f at 6 13 0.39 AT SANTIAGO DE CHILE. 69 JANUARY 'ill. 1850. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A in necessary for satisfactory measures. Results. Mean N. P. Mean S. F. .Six transits Six transits h. m. Correction for chronometer at 4 55 Correction for chronometer at 5 1 b. m. s. 4 55 5.33 5 1 13. 8B m. s. — I 9.82 — 1 9.83 m. B. — 4 13.352 — 4 12.440 Hantingo Bid. time N. P. Santiago aid. time S. F. Interval Rev. + 13.587 + 12.773 = 4 24.81 = 4 8.93 h. in. s. 4 53 55.51 5 0 4.05 6 8.54 A I'. F. limbs in A. R. reduced to arc Variation of A. R. in 6m. St. . . Observed P. F. diameter . 13.68 + 0.64 14.32 A N. S. limbs micr. in rev 0.815 = 15.88 Variation of declination in 6m. 8s. . — 0.21 Corr. for ilium, of micr. wires ... — 3.30 "I,-, tvcd N.S. diameter . . . 13.47 h. in. A f at 4 58 . 0.28 h. m. A p at 5 2 0.26 70 OPPOSITION OF MARS, 1849-50, JANUARY •!. 1800. 1 Chronomrlrr time of lr.. icaji of wirrn. Micr. Planet— Star. Rmr m t M : Object. A. B. 0. 1). E. A A d* •aWi Air. Wn. Her. m. a. Rev. Inchn. • • Mm . . . N.P. 38.0 49.9 9.4 15.5 98.4 4 90 9.30 +5.00 98.144 67.6 54.9 • Bern! . . . 405 57.0 10.5 93.8 37.5 50.0 4 94 93.76 — S.»8 -491.46 +10.96 Thi-r. all. Man . . . S.r. 34.5 47.8 1.0 14.3 97.9 4 97 0.09 +4.75 68'. 3 . Btaaal . . . 405 55.0 8.5 91.6 35.0 48.0 4 31 91. «u -5.48 4 90.68 10.93 Bar. ml. to34-F. - I 1 s Man . . . N.P. 8.3 19.5 39.5 45.8 58.7 4 3332.66 +5.89 • B«Ml ... 405 98.0 41.3 54.5 7.7 90.5 4 37 54.40 —5.99 491.84 11.04 7 Man . . . 8.F. 47.0 0.3 13.3 96.6 39.4 4 40 13.33 +5.10 8 Bowl . . . 405 7.S 30.5 33.5 46.8 se.s 4 44 33.50 -5.08 4 90.18 10.16 9 Mm . . . N.P. 50.5 '3.5 16.5 30.0 49.8 4 47 16.66 +6.91 10 BeaMi ... 405 11.9 95.0 38.0 51.3 4.3 4 51 37.96 —4.87 4 91.30 11.08 11 Mara . . . 8.F. 99.5 35.5 48.6 9.0 14.6 4 53 48.64 + 5.57 li BOM! ... 405 49.0 55.5 8.5 91.8 34.5 4 58 8.46 —4.57 4 19.89 10.14 11 Man . . N.P. 45.7 69.0 19.1 95.7 38.3 5 0 19.16 +6.63 M Banal ... 405 7.5 91.0 34.0 47.5 0.9 5 4 34.04 —4.48 4 31.88 11.11 IS Man . . . 8.F. 49.9 S5.5 8.5 91.8 34.5 5 7 8.50 -1-5.93 . 1C BOM! . . . 405 9.5 15.5 99.0 49.5 55.0 5 11 96.90 —4.19 490.40 10.19 17 Man . . . N.P. 16.0 99.3 44.5 55.8 8.5 5 13 49.49 18 Bern! ... 405 17.0 50.3 4.0 17.5 30.9 5 18 3.60 -3.97 4 91.18 10.98 19 Man . . . 8.F. 8.5 93.0 36.0 49.5 9.9 5 91 36.04 +6.99 90 Bmel ... 405 30.3 43.5 56.6 10.0 93.7 5 95 56.69 -3.79 4 90.58 10.08 SI Man . . . N.P. 34.8 48.0 1.9 14.5 97.9 598 1.14 +4.40 • Beaael ... 405 9.5 93.6 38.0 48.8 5 38 92.63 -8.57 491.49 10.97 83 Man . . . S.K. 49.0 55.3 8.5 91.9 34.5 535 8.44 +3.59 94 Bend ... 405 15.8 99.0 49.4 55.0 5 3» 98.95 —8.47 4 90.51 10.06 9ft Man . . . N.P. 4.5 17.5 30.5 43.5 6 43 17.40 +4.86 • Beanl ... 405 19.5 96.0 39.0 59.9 5.9 5 47 38.96 -6.57 4 91.68 11.33 97 Man . . . a.F. 40.5 53.8 6.8 90.3 33.0 5 51 6.88 ,4.04 98 Be«el ... 405 1.0 14.5 97.5 41.0 53.5 5 55 97.50 -6.09 490.6) 10.13 90 Man . . . \ r 1.7 15.0 41.5 51.7 5 SB 98.18 +4.80 30 Beaael . . . 405 94.5 37.5 • • 4.5 17. U 6 350.63 -6.0» 4 99.45 Bt.fJ 31 Man . . . r- 1 8.4 91.5 34.5 48.0 0.5 6 19 34.58 + 4.14 39 Boael . . 405 99.5 43.0 56.0 9.5 99.0 6 16 56.00 -8.01 491.49 10.15 33 Man . . . N.P. 0.5 13.5 98.6 40.9 59.8 69098.79 +6.37 34 Binael ... 405 99.7 38.0 49.9 9.5 153 694 4B.14 -5.56 4 92.49 10.93 X Man . . . 8.P. 94.9 37.5 M.5 3.8 16.5 6 98 50.50 • '• 4.31 36 Brawl ... 405 45.5 58.3 19.0 95.5 38.9 6 33 II. (M -5.64 —4 91.44 +9.95 Remark*. Alth'iuch • inferably favorable night, the mea«iree are by no iiicaiu uiMhctor) . The comparing itar i> . in -. tm. ( " MraaN.P. . . Nmr iran-itu . . . 5 16 13.98 — 4 91.733 . . . . ; 11. Ml . . . ru3.-M.80 Mean 3. P. . . . Nin<- inm-u* . . .', 94 0.76 — 4 W.IUH . . 10. IK) . . . . a 17.10 AT SANTIAGO DE CHILE. 71 h. m. Correction for chronometer at 5 16 . Correction for chronometer at 5 24 , JANUARY 21, 185O— Continued. Results — Continued. m. s. — 1 13.16 — 1 13.18 h. m. s. Santiago sid. time N. P 515 0.12 Santiago fid. time 8. F 5 22 56.58 Interval . . 7 56.46 A P F. limbs in A. R. reduced to arc- Yariation of A. R. in ?m. 56*. . . . Observed P. F. diameter .... h. m. A p at 5 17 . 16.57 + 0.54 17.11 0.33 AN.S. limbs micr. in rev 0.908=17.70 Variation of declination in 7m. 56s. . . — 0.27 Corn for diarn. of micr. wires .... — 2,20 Obsi:rv>-d .V. 3. diameter ..... 15.23 li. m. " Ap nt5 25 0.31 JANUARY 33,1850. • V Chronometer time of transit. Planet — Star. thermometers I Wean of wires. Micr. Bar. I !: Object. A. B. C. D. E. A jr. A«l Air. Wet. £ 0 8. 9. 8. •. 8. h m s. Rev. m. s. Rev. Inches. 0 0 R 1 Mars . . . N.P. 50.5 4.0 17.5 30.5 43.2 4 10 17.14 +4.47 28.078 ' 69.4 52.7 •! Bessel ... 405 . . 30.0 43.5 56.5 9.2 4 14 43.90 —4.11 —4 26.06 +8.58 Ther. an. 3 Mars . . . 8.F. 48.3 1.5 14.7 28.0 40.6 4 17 14.69 +3.53 70°.0 4 Bessel ... 405 13.5 St. 5 39.8 53.8 5.5 4 21 39.62 —4.11 4 25.00 7.64 liar. red. to 32° F. 27.965 & Mars . . . N.P. 7.8 91.0 34.9 47.6 0.3 4 23 34.18 +4.77 6 Besscl ... 405 34.0 47.5 0.5 14.0 26.5 438 0.50 -3.91 4 96.39 8.68 : Mars . . . S.F. 27.5 40.8 54.0 7.5 20.3 4 99 54.03 +4.01 8 Befisel ... 405 6.0 19.5 39.8 45.5 4 34 19.35 —3.66 4 25.33 7.67 9 Mars . . . N.P. 4.7 17.2 30.5 43.7 56.4 4 36 30.50 +5.90 10 Be* el ... 405 30.5 43.8 56.6 10.0 99.6 4 40 58.70 —3.49 4 26.20 8.69 11 Man . . . S.F. 24.5 37.8 51.0 4.3 17.0 4 42 50.99 +4.47 19 Bi-wl ... 405 49.8 3.2 18.3 29.6 43.4 4 47 16.96 —3.19 4 25.34 7.66 13 Mars . . . N.P. 40.6 53.5 6.8 20.3 32.8 4 49 6.80 +5.58 14 Bewel ... 405 6.0 19.9 39.3 45.8 58.4 4 53 32.34 —2.98 4 25.54 8.56 15 Mars . . . 8.F. 19.8 28.0 39.0 52.3 5.2 4 55 39.06 +2.83 10 Be«. Rev. m. •. Rev. Inrhm. • • • Man . . . 8.F. 91.8 5.9 18.3 31.6 44.5 6 5 18.98 +3.97 •- .- 69.4 59.7 • B«Mt ... 405 17.8 31.0 44.3 57.7 10.5 6 9 44.98 —3.55 -435.96 +7.59 37 a • Man . . . N.P. Bcmtl ... 405 Man . . P.P. 33.9 0.0 55.8 46.9 13.1 d.S 59.5 96.3 91.5 19.5 - 3S.O 95.9 59.4 47.6 6 II 59.39 6 16 a».31 6 1891.56 +4.65 -3.64 +4.09 497.00 8.99 Th.T. an. 70'. 0 Bar. red. to :w F. 97.965 • B«*H . . . 405 91.1 31.3 47.5 1.0 13.5 6 99 47.48 —3.50 4 35.99 7.59 41 Mm . . . N.P. 37.5 Sfl.7 3.7 17.9 30.0 6 9.1 3.83 +4.82 49 B«Ml ... 405 4.5 17.8 30.5 44.0 57.0 6 99 30.76 —3.58 4 26.94 8.38 43 Man . . . S.F. 9.5 99.7 35.8 49.9 1.9 6 31 35.89 +4.M 44 Bf«el ... 405 38.0 48.8 1 15.9 97.8 6 33 1.96 -3.59 4 96.14 7.54 45 Man . . . N.P. 43.6 57.0 10.1 93.5 36.3 6 33 10.14 +5.01 46 Bewl . . . 405 10.4 93.8 37.5 50.7 3.5 6 49 37.18 —3.36 4 97.04 8.37 47 Maw : . . 8.F. 44.1 57 .« 10.9 94.3 37.0 6 45 10.88 +4.17 4* Be»el ... 405 10.8 94.0 37.1 50.5 3.9 6 49 37.1? —3.37 —4 96.96 +7.54 Remarks. Very favorable Tor observations. Tile great difficulty in with the very small star ; it was, however, a liltlt: mon- iii-nnn than last night, a Very steady. c Bemmiiilly -h :nl\ . » Recorded 91. 7«. at wire E. Results. M' an V. P. . . Twelve transit* . MI. in S. F. . . Twelve Inn- h. m. i*. . 5 34 6.27 . • 5 30 44.50 m. >. Rev. — 4 26.638 . . . . + 8.487 . — 435.602 .... +7.640 . / c . . =945.49 . . =998.90 h. m. Correction t"r rhronomfter at 5 24 . I'lirnriniii I'cir rhronoineliT at J 31 . . A P. F. limb» in A. R. reduced to arc . Variation of A. R. in 6m. 38t. . . . Observed P. F. diameter m. «. . — 1 16.88 . —1 16.90 . . 15.55 . . + 0.91 . . 15.76 Santiago Bid. time N.P h. m. >. . . 5 29 49.39 . . 5 39 97.60 . . 6 38.21 A N. n. hrnli- micr. in rev •lonul d' rim iii.'ii ill 6m. 3Ht. . Cmr. lor ili.um'l'T nt inirr. wirrf . . Otxervcd N. 8. diameter .... . 0.847=16.51 — 0.91 — 9.90 14.10 h. m. A o a- 5 35 n . 0.18 h. m. A Dill 5 39 . H . 0.16 JANUARY S3. l-.-.o. t Chronometer time of Irnn-il. Planet— Star. Micr Bar Object. A. B. C. D. E. A«. At Air. Wet. X & 1 Man . . . N.P. 14.8 97.0 40.9 53.5 tua 49340.34 +3.60 71.1 53.5 1 Be«el ... 405 . . 55.0 7.5 . . 34.0 4 98 7.84 -497.50 +6.98 Tiler, alt Man . . . B.F. 96.8 40.0 53.3 6.5 19.5 4 30 53 99 +4.90 71'. 0 4 Bewel ... 405 53.5 6.5 19.6 45. 8 4 35 19.64 — 1.15 : • 5.35 Bar. red. M • • Man . . . \ r 90.9 33.0 46.4 50.5 12.1 4 87 46.34 +9.78 BMW) ... 405 47.5 0.5 I3.S 97.3 40.0 4 49 13.82 -3.44 —497.58 +6.99 AT SANTIAGO DK CHILE. 73 JAM Mil '..I, IN ><> n.ii.'l. 1 ,.,i,,. i. , nun- .if iiiin.ii. . -Hiar, \ 14 ^ * \1 Ha OtJtM, A. 1 C. D, K. Vf> nn fn wlf*f» A u. *l. Air IVat. k fl •• - - «• - Ii m. a. Bar. m a. U-*. • • 7 Mara . . . H.K. 10.4 W.4 45.S 11.9 4 M 1 -,.•)! 71.1 • lltaMl . . 44.* • 4 48 1-4..H —4,13 — 49D.M +S.3J •rii«r,aii. ( Man . . . H.r. 41.1 13.0 114.4 4 41 13.10 +9.47 It Baaaal ... 404 14.4 97,4 40,8 *.4 4 940.M 4*7.5* 8.18 tint trlt. 11 Man . . .IP. ., . 43,0 M.9 9.4 : 4 448.W • • 19 BeM*l . . . 40.', 9.4 93.0 08.11 4 099.W -3,:,t 498,44 4.41 11 Man . . . N.P. 97.4 40.4 41.7 lt.4 * 1*4384 14m 0*aMl . . . 406 • • • • 9!.( 3i,0 47.4 Jl.44 —3.33 497.W *.9» 1* Man . . . H.r. 34.4 47.7 0.* 14.3 98.V 4 1* *,*4 +9.91 " •MM! ... 404 1.3 14.4 97.7 41.* 41.* -3.11 4».1» 4,39 17 Man , . . H.r. M 11. 0 9*,* 40.4 U.I 4949I.M +3.90 1* Bawl . . . 401 «,4 41.4 «.3 91.0 *M44.*4 . 8. IB 1* Man . . . H.P. 47.9 1.0 14.1 97.4 40.9 4 11 14.9* BeM*l M,* 9S.9 41.0 44.4 7,9 41441.10 , 4,11 91 Man . . . H.P. 9.4 14,4 9t.9 44.* 4379*.«9 +3.44 •••- u«~i • ' • m K.I 41.4 41,7 10,* 99.7 .-, 41 5«.*4 • *.IO 93 Mar. . . . g.r. 14.0 97.4 40.4 u.* *,4 44340.48 +9.07 94 H—~l ... 406 41.9 44,4 7.4 91.* ».* 44* 7.44 -9.44 4.39 94* Man . . ».p. *.* 19.4 39.4 4*.* • 4 It.M +9.77 " B«a*l ... 40* 9t.4 • • 40.4 4»,7 U.* * 04t.W 4 MM *.3f Mar. ... M.P. lt.4 31.4 44.4 47.4 II.* * IS 44.80 +3,44 " ••aaaf ... 4*4 •M l«.7 3*.9 • 9* 19, «4 : 8.13 19 MM ... M.p. 3t.3 4*,4 4.9 17.9 30,4 • 91 4,14 +3.4* 1* •Mad ... 4*4 *,3 U,4 3».& ta,4 (97M.9* -9.M 4M.19 *.I9 t Man ... «,P. 40.1 U.4 (.4 1*.4 • » «,«• * ••Ml. . . 404 7.4 90.3 13.4 4*,* *.* *M».« • 497.01 4.13 a MM . . . H.r. *.* »,* 4*,* 9.4 • 1714.M +1.49 M ••a** ... 4*4 M 17.1 10.4 • 49 4.1* -9.74 49t.lt «,l* » MM . . , «.P. 41.4 4,* 17.4 3*.* 41.7 • 44 17.49 +9.07 m • «aaa| . . 4*4 I*.* «.* 44.* 11.4 ( 4* 44.9* -9.*l ; 4-*.9* //•^•«. Th«f* w«n no wwtM* yM«MwMt» In dM •kwnrMimw of (o nlftii. Th* «u/ ww M*n MNMWtMl mar* i,ili,»rd. Result* — Cuntimiid. A P. r. limb. In A. R. mltieed to are . . . 14.74 A N. a. limb* mlcr. In rrr. . . . .0.855=16.66 Variation of A. R. in 8m . . — 0.04 Variation ••> tin imation in 8m. ... — 0.94 Obteived P. F. diameter ... , . . 14. "0 I'orr. tor ilinin. of mirr. wire* . ... — 9.90 Ob- r . . . 14.29 6 P. P. llmbu in A. R. reduced to arr . . . 14.45 & N. S. limbo mirr. in m. . . .0.814 = 15.88 Variation of A. R. iu 36. . + 0.00 Variation of declination in 96t. ... — 0.01 Obaenred P. P. diameter .... . . . 14.45 i.im. nf mirr. wire* . ... — 2.20 ObM'rved N. S. ili:iinetrr . . . . . 13.65 b. m. • h. m. 4 f at 5 3 . . . . 0.13 A pat 6 26 . . . 0.14 AotttU . 0.11 A f at 6 *8 . 0.19 .! \ M \ H \ 94, 1850. . § Chronometrr lime of transit. , Mirr. Planet— Star. Bar. riictin «- Object. A. B. C. b. E. A«. 6.1. Air. Wei 0 ». ». a. •. a. b. m. a. Rev. m. a. RfT. Inehea. • • Z 1 Man . . . N r 3S.4 46.0 59.0 19.7 95.4 4 1859.10 +304 3d. 069 73.9 56.6 9 Beaael . . . 40S . . 11.0 94.4 37.6 51.0 4 93 24.45 —0.93 —4 25.35 +3.97 The r. art. 3 Man . . . 8.F. 45.8 59.5 13.5 95.5 39.0 4 40 12.46 + 1.56 71-.8 4 BeaMl . . . 405 . . 24.3 37.3 50.7 3.5 4 44 37.35 —1 .6-2 494.89 3.18 Bur. red. to 33- F. 27.971 .1 Man . . . N.P. 14.5 98.0 41.0 54.3 7.0 4 47 40.96 +2.78 " 6 Beaael ... 405 40.0 J3.5 7.0 S0.9 33.9 4 53 6.78 -1.38 4 25.83 4.16 7 Man . . . 8.F. 37.0 50.3 3.4 18.7 99.5 4 54 3.38 +9.34 8 Betnl ... 405 8.5 15.3 98.3 41.5 54.9 4 5828.35 —1.03 424.98 3.37 1 Man . . . N.P. 9.8 93.0 38.1 49.5 S.3 5 035.14 +2.28 10 BMW| ... 405 35.8 49.0 9.3 13.5 98.3 5 5 9.18 —1.77 426.04 4.05 11 Man . . . BF. SS.5 5.8 18.8 33.9 45.0 5 7 18. M +1.81 u Beaael ... 405 17.5 31.0 44.0 57.2 9.7 5 11 43.88 —1.44 425.03 3.35 13 Man . . . N P 4..1 17.4 30.5- 43.8 56.5 5 13 30.50 +2.83 14 BcawJ ... 405 30.2 43.3 56.4 9.8 92.5 5 17 56.44 — 1.91 4 25.94 4.04 15 Man . . . «.F. 94.3 37.5 50.5 4.0 16.8 5 19 50.62 +9.17 18 BMMI! ... 405 49.5 9.6 15.7 99.1 41.6 5 24 15.70 —1.14 495.08 3.31 17 Man . . . N.P. 38.5 51, R 4.8 18.9 31.0 598 4.86 +3.37 It BeaMl ... 405 4.5 17.8 31.0 44.3 57.0 5 30 30.99 -0.68 4 98.06 4.05 19 M>r> . . B.P. 3.5 16.8 29. B 43.9 52.8 53998.8! +2.41 M Bcnel ... 405 98.3 at. 7 54.6 8.0 90.6 53854.64 —0.83 494.83 3.93 • Mara . . . N.P. 33 5 17.0 0.0 13.3 96.0 5 38 59.96 + 1.37 Bowl ... 405 SV.S U.7 98.9 39.5 53.9 5 43 26.03 -9.66 426.06 4.03 • Man . . . 8.P. 54.8 8.0 91.9 34.5 47.3 5 4591.16 +1.13 94 Beoel ... 405 90.0 33.1 46.5 59.5 12.0 5 49 46.94 -3.04 4 25.08 3.17 M.n . . . N.P 10.6 83.8 38.8 50.3 9.8 5 51 36.86 +9.27 98 BMW! . . . 40.'. S6.fi 49.8 9.7 16.9 98.9 556 a.84 -1.71 4 25.98 3.98 97 Man . . . B.P. 48. .1 0.0 13.0 96.4 39.1 5 58 13.00 +1.87 • BtM«l . . . 4". 11.1 95.6 38.! 51.5 4.3 6 1 38.99 —1.94 4 25.42 3.11 Man . . . N.P. 13.2 96.4 39.4 59.8 5.5 6 4 39.46 + 1.79 10 BnMl ... 405 39.0 j.'.a 18.6 31.4 6 9 3.38 -8.94 4 25.9} 4.03 • M.r. . . . B.F. 98.8 42.0 55.3 8.5 91.4 6 10 55.18 + 1.16 B«M«| . . 406 S3.6 7.4 sn.4 33.6 46.9 8 1590.94 —1.91 -495.06 +3.07 AT SANTIAGO DE CHILE. 75 JAM'ARY !S4V, 1850— Continued. No. for rel'rrtm'c. Object. Chronometer time of transit. Mean of wires. Micr. Planet — star. Gar. ?hermometers. A. B. C. D. B. A a. &j. Air. Wet. s. a. s. s. s. b. m. s. Rev. m. s. Rev. Inches. • • 33 Mare . . . N.P. 7.7 20.8 33.8 47.1 0.0 6 17 33.90 + 1.66 28.089 73.2 56.6 34 Bessel ... 403 33.4 46.5 59.6 13.0 25.7 6 21 59.64 —2.32 —4 25.74 +3.98 35 36 37 Mara . . . S.F. Bessel ... 405 Mars . . . NP. 0.7 as. 8 26.0 13.8 39.0 39.2 96.8 52 1 52.3 40.3 5.5 5.5 53.0 18.3 18.5 6 21 26.92 6 28 52.14 6 30 52.30 +1.07 —1.95 +1.47 4 25.22 3.02 Tber. att. 71-.8 Bar. red. to 3i° F. 27.971 38 Bessel ... 405 51.8 4.8 18.0 31.5 44.3 6 35 18.06 —8.47 4 25.76 3.94 39 Mara . . . S.F. 25.8 38.5 51.5 4.8 17.8 6 37 51.56 + 1.22 40 Bessel ... 405 49.9 3.0 16.4 29.9 42.5 6 42 16.34 —1.83 4 24.78 3.05 41 42 Mara . . . N.P. Bessel . . . 405 58.3 24.0 11.5 34.8 37.3 50.5 37.8 4.0 50.8 16.7 6 41 21.62 6 48 SO. 50 +1.65 —2.06 4 2/88 3.91 43 Mara . . . SF. 5.5 18.6 31.8 45.0 58.0 6 51 31.78 +1.25 44 BCTS-! ... 405 30.5 43.5 56.6 10.0 92.8 6 55 56.68 —1.84 —4 24.90 +3. OS) Remarks. There has been but one more favorable night since the commencement of observations— that of December 17. Both objects are sharply defined, and are entirely free from flickering motion. Whether the star ia variable or not it would be difficult to pronounce, yet it has certainly been better seen during the Uul two nighu. Mean N. P. Mean B. F. Eleven transit* Eleven transit* h. m. Correction for chronometer at 5 38 . Correction fur chrnnometer at 5 46 . Results. h. m. ,-. S 37 43 51 5 45 39.53 — 1 24.97 — 1 24.29 Of. I. — 4 25.868 — 4 25.005 Rev. +4.013 . +3.177 . =1 18.21 =1 1.92 b. m. s. Santiago Kid. time N.P 5 36 19.34 Bantiinio sid. time S. F 5 44 15.34 Interval 7 56.00 A P. F. limb* in A. R. reduced to arc Variation of A. R. in 7m. 56>. . . . I iDMirved P. F. diameter .... h. m. A o at 5 96 12.94 - 0.32 12.62 0.06 A N. S. limb micr. in rev 0.836 = 16.99 Variation of declination in 7m. 56». . — 0.93 Corr. for uiam. of micr. wires ... — 9.90 Observed N. B. diameter 13.86 b. m. " A f at 5 38 0.08 JANUARY US, 1850. I Chronometer time of transit. Planet— Star. Thermometers. Micr j £ Object. A. B. C. D. E. At At Air. Wet. 1 £ s. s. s. s. s. b. m. s. Rev. m. s. Rev. Inches. 0 e i Mars . . . N.P. 13.0 23.7 38.4 51.7 4.5 4 21 38.46 +4.63 28.110 75.6 58.4 o Bessel ... 405 33.0 46.0 59.0 12.5 95.0 4 35 59.10 , 2.46 —4 20.64 +2.17 Ther. att. 3 Mara . . . tf.F. 49.9 9.4 15.5 28.8 41.7 4 98 15.99 1.96 75°. 0 4 Bessel ... 405 29.0 35.3 48.6 1.9 4 39 35.15 0.70 4 19.63 1 26 Bar. red. to 33° F. 27.983 5 Mare . . . N.P. 4.8 17.9 31.3 44.6 57.5 4 34 31.33 9.46 6 Sessel ... 405 25.5 38.5 51.8 4.3 18.0 4 3851.S2 0.44 4 30.40 2.03 7 Mars . . . S.F. 52.6 6.0 19.3 32.5 45.3 4 41 19.12 1.66 8 Besscl ... 405 11.5 95.2 38.8 52.1 4.8 4 45 38.48 +0.44 —4 19.36 +1.93 76 OPPOSITION OF MARS, 1849-50, J \ \ i -. 1 lYM, lhSO-< OMU HIM ll. " 111" iT'jnml 1 -Star u >],, r. - •"OMMt Bar. 1 Objoct. A. B. c. I). : A a. Ai. Air. Wet. k & o Ill V | I • • Z nrv. g Mui . . . NT. 14.3 97.S 40.7 54.0 4 4840.69 +3.79 98.110 75.6 58.4 10 B«Ml ... 405 . . 48.9 1.5 14.7 97.5 4 53 1.38 1.76 —490.76 +9.03 Tber. an. 11 19 Man . . 8.F. BciMl . . . 405 6.7 97.9 19.8 39.5 39.8 59.6 46.3 6.0 59.9 16.8 4 55 3J.96 4 59 1 3.98 9.11 4 19.86 1.17 70V 5 Bar ml. to 39- F. 97.983 13 Man . . . N.P. 11.1 94.9 37.5 50.8 3.5 5 1 37.49 4.45 14 B«Ml . . 405 31.8 45.0 58.0 11.4 94.9 5 558.08 9.49 4 90.66 9.03 IS Man . . . B.P. 96.5 39.7 59.7 6.3 19.0 5 7 59.84 3.80 16 BttKl ... 405 46.0 59.5 19.6 96.0 38.6 5 19 19.54 9.57 4 19.70 1.93 17 Mara . . . N.P. 49.0 2.9 15.5 98.8 41.5 5 14 15.40 4.96 18 Ban! ... 405 9.1 99.6 36.0 49.3 2.0 5 18 35.80 9.85 4 90.40 9.11 18 Man . . . s.I. 99.3 49.6 55.8 9.8 91.8 5 20 55.74 3.68 90 Be»el ... 405 490 9.3 15.5 98.8 41.5 5 95 15.49 9.45 4 19.68 1.93 91 Man . . N.P. 47.5 0.6 13.8 S7.3 40.0 5 97 13.84 4.64 89 Beuel ... 405 6.0 91.5 34.5 48.0 0.5 5 .11 34.50 9.67 4 90.68 1.97 83 Man . . . B.F. 10.6 93.8 37.0 50.4 3.3 5 34 37.00 4.19 94 BOM! ... 405 30.0 43.5 56.5 9.8 99.7 5 38 56.50 3.00 4 19.50 1.19 93 Man . . . N.P. 46.7 1.9 15.1 41.0 5 43 14.98 5.17 98 Be«Kl ... 405 8.8 93.0 35.3 48.6 1.5 5 47 35.34 3.91 4 30.96 1.96 87 Man . . . S.F. 90.0 33.5 46.5 59.8 19.5 5 4946.46 4.68 96 Beimel ... 405 39.5 53.8 6.0 19.3 33.0 554 6.10 3.59 4 19.64 1.16 99 Man . . . N.P. 98.5 41.6 54.7 8 0 90.8 5 55 54.72 5.82 3U Beaael . . . 405 48.6 9.0 15.0 98.5 41.0 6 0 15.02 3.87 490.30 1.95 31 Man . . SF. 91.5 34.6 47.7 1.2 13.6 6 3 47.76 9.89 3i Bc*Ml ... 405 41.0 54. 2 7.9 9U.6 33.5 6 7 7.30 1.55 4 19.54 1.97 33 Man . . . N.P. 44.4 57.5 10.5 93.8 36.9 6 10 10.48 3.48 34 B«M| ... 405 4.5 17.8 30.9 44.3 57.0 6 14 30.SU 1.51 1 • , • 1.97 X Man . . . B.P. 13.0 96.3 39.4 59.8 5.5 6 17 39.40 9.56 36 Betucl ... 405 3J.5 45.5 58.7 19.1 94.7 6 91 58.70 1.40 4 19.30 1.16 37 Man . . . N.P. 1.8 15.0 98.0 41.4 54.3 6 94 98.10 3.4U 38 BMM| ... 405 91.8 35.1 48.4 1.8 14.5 6 98 48.33 1.55 4 90.93 .1.94 3» Man . . . 8.F. 91.5 35.8 48.8 3.3 14.9 6 30 48.86 9.70 40 BCM«| ... 405 41.8 55.4 8.5 91.8 34.5 6 a5 8.40 1.44 4 19.54 1.96 4. Man . . . N.P. 33.8 47.0 0.9 13.5 96.9 637 0.14 3.51 4* Bcwtl ... 405 54.0 7.9 90.5 34.0 46.5 6 41 90.44 1.55 4 90.30 1.96 41 Man . . . 8.F. 6.8 19.8 39.8 46.9 56.8 6 43 .13.88 9.59 44 Bowl ... 405 95.5 .19.0 54.1 5.5 18.3 6 47 59.08 +1.99 -4 19.90 +1.93 Remurks. Wry favorable for obtervationt throughout, and th*1 meaiiurvR gem-rally good except at Aral, when an cxce** of light rendered the itar extremely induunct. Results. .p. Mm, 8. Eleven tran»ll» Klevtn lran.it- h. MI. i. - • ; 5 35 44.41 m. •. - 4 SO 451 — 4 19.541 Kt-v. + 9.010 + 1.916 = 0 39.17 =•0 93.70 AT SANTIAGO DE CHILE. 77 b. m. Correction for chronometer at 5 29 Correction for chronometer at 5 36 JANUARY •;-.. 1H5O— Continued. Results — Continued. m. s. -I 27.38 -1 27.38 Santiago sid. time N. P 5 Santiago sid. time S. F 5 Interval .m. s. 27 31.31 34 17.03 6 45.72 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 6m. 46«. . . Observed P. F. diameter .... h. m. A p at 5 30 13.65 — 0.30 13.15 0.04 A N. S. limbs micr. in rev 0.794 = 15.47 Variation of declination in 6m. 46>. . . — 0.18 Corr. for diam. of micr. wires ... — 2.20 Observed N. S. diameter 13.09 h. m " A p at 5 36 0.02 JANUARY •-!('.. 1850. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A A Air. Wet. 8. •. s. s. 8. h. m. >. Rev. ""/• Rev. Inches. « • 1 Mara . . . N.P. 59.5 13.5 95.6 39.0 51.6 4 33 25.84 +3.03 28.121 76.3 59.1 3 Bessel ... 405 10.5 34.5 37.5 50.8 3.5 4 36 37.36 2.70 —4 11.52 +0.32 •3 a 4 56 Mara . . . 8.F. Bmel ... 405 Mara . . . N.P. 13.7 •24.5 59.2 27.0 38.0 11.8 40.0 51.3 95.0 53.5 4.7 38.5 6.2 17.5 50.8 4 3b 40.08 4 42 51.90 445 25.06 9.56 3.78 4 41 4 11.19 —1.23 Ther. att. 74". 3 Bar. red. to 32° P. 27.996 ft Bessel ... 405 10.3 94.0 37.0 50.0 3.0 4 49 36.86 4.19 4 11.80 +0.32 7c Mare . . . S.F. 96.0 39.4 53.4 6.0 18.8 4 57 52.52 3.88 8 Bessel ... 405 37.0 50.2 3.4 16.6 39.5 4 2 3.34 4.58 4 10.83 —0.70 9 Mara . . . N.P. 50.0 3.0 16.3 29.6 42.2 5 6 16.22 5.08 10 Bessel ... 405 1.5 15.0 98.0 41.5 54.3 5 10 28.06 4.81 4 11.84 +0.37 11 Mara . . . S.F. 43.2 5fi.5 9.5 23.0 35.6 5 12 9.56 4.50 at Bessel ... 405 54.0 7.5 20.5 33.8 46.5 5 16 20.46 5.23 4 10.90 —0.73 13 e Man . . . N.P. J1.5 44.8 58.0 11.5 94.0 5 17 57.96 5.56 14 Bessel ... 405 43.5 55.5 9.8 23.3 35.8 5 S3 9.58 5.34 4 11.62 +0.22 15 Mara . . . 8.F. 46.0 59.2 12.5 25.7 38.4 5 25 13.36 4.95 16 Be»«el ... 405 56.8 10.0 93.3 30.8 49.0 5 9933.14 5.78 4 10.78 -0.83 17/ Man . . . N.P. 47.5 1.0 14.2 27.5 40.2 5 31 14.08 2.56 18 Benel . . 405 59.7 96.3 39 5 53.0 5 35 26.35 9.30 4 12.27 +0.26 1»« Man . . . S.F. 49.5 3.0 16.0 99.5 43.3 5 38 16.04 1.67 90 Bewel ... 405 0.5 13.5 36.5 39.8 59.7 5 42 96.60 2.41 4 10 56 —0.74 21 Man . . . N.P. 46.8 0.1 13.1 26.3 38.9 5 44 13.04 2.45 29 Bessel ... 405 58.5 11.8 24.5 38.0 50.7 5 48 24.70 2.30 4 11.66 +0.15 93 Man . . . S.F. 25.3 38.5 51.5 5.0 17.8 559 51.62 1.61 34 Bessel ... 405 36.9 49.5 2.5 15.6 38.5 5 57 2.50 2.33 4 10.88 —0.72 35* Mara . . . N.P. 19.5 32.8 46.0 59.5 12.1 5 58 45. UB 2.69 26 Beisel ... 405 31.2 44.5 57.5 11.0 33.6 6 9 57.56 9.49 4 11.58 +0.13 97 Man . . . e.lf. 32.5 45.7 S8.8 12.3 25.0 • 6 4 58.86 1.91 98 De»«el ... 405 43.9 56.5 9.5 33.0 35.5 6 9 9.54 9.62 4 10.68 —0.71 99 Man . . . N.P. 19.5 33.5 46.8 0.9 13.1 6 10 46.63 2.55 30 Rente] ... 405 31.8 45.0 58.5 11.8 24.5 6 14 58.32 2.48 4 11.70 +0.07 31 Mara . . . S.F. 46.3 59.7 12.8 26.3 39.0 6 20 li!.KH 1.84 33 Beswl ... 405 56.5 10.2 23.5 36.5 49.5 6 24 W.S4 2.58 4 10.38 -0.74 33 t Mara . . . N.P. 55.5 9.0 91.8 35.3 47.8 6 97 21.88 2.86 34 Bessel ... 405 • • 30.8 33.5 47.0 59.5 6 31 33.60 3.91 4 11.72 —0.05 35 Mara . . . S.F. 34.8 33.0 51.0 4.5 17.2 6 33 51.10 2.23 36 Bewel ... 405 35.0 48.5 a.o 15.5 *7.8 638 1.76 +2.99 —4 10.66 —0.74 78 OPPoarnoN OF MARS, 1849-50, JAMMIY Rtmarlcs. Much hatr rendered the ?tar almoti mvi.iblr thrnnjthout the mjht. a Trlnrope accidentally touched after observing Mar*. e Marc dininri and utendjr. Rcjerti-d. / Flarinf and uuiteady. i Toal fmb wind ri«ing , chancing the refraction r»|.i. ly. g Very un.tradj . r Flaring. * Vi-ry Meady. i Bccordcd 44 Jt. at wire K. i The Htht waa chan(«d. Results. h. m. a. *. Rev. ' H MranN.P. . . Nine tren-iu . . . 5 30 39.63 — 411.745. . . . +0.177 . . . . =0 3.45 M«an 8. F. . Nine inuuiu . . . 5 45 40.61 — 4 10.708 .... —0.738 . . . . =0 14.40 h. m. m. 0. b. m. a. Correction for chronometer at 5 30 . • . —1 :"0.45 5 38 59.18 Correction for clir«iiinni> ti'r at 5 48 • • . —1 30.48 5 44 10.13 15 10.95 it A P. F. lim(» in A. R. reduced to arc . . . 15.55 A \. 8. limbs micr. in rer. . . . . 0.916=17.85 — 1.63 Variation or declination in 15m. lit. — 0.40 13.93 Corr. fordism, of micr. wires . . . — 3.90 15.35 h. m. n h. m. A • at 5 31 . o.oo A oalS 46 . . . 0.01 J A .\V.\Il V 2T. IS5O. | Chronometer time of transit. Planet— Star. Thermometera - ; Alicr. Bar. •jj MfMb A. B. C. D. B. & a. A*. Air. Wet. 1 6 a. a. a. >. a. b. m. a. Rev. m. a. Rev. Inches. • • i i Man . . . N.P. 44.5 58.0 11.5 34.8 S7.5 4 17 11.36 -fl.03 80.9 63.8 lm Bemi ... 405 45.3 11.6 35.9 37.7 4 91 1 1 .6) 3.19 —4 0.38 —1.56 Thrr. att. 3 Man . . . R.F. C.l 19.3 39.4 45.8 58.9 4 34 33.36 1.15 76°. 0 4 Bnael ... 405 . . 18.5 . . 44.8 57.5 43831.43 3.53 359.13 9.37 Bar. rnl. toWF. 97.955 5 Man . . . N.P. 9.4 15.5 98.6 41.8 51.6 4 9038.58 9.14 6 BeMd ... 405 8.5 15.8 99.0 49.5 55.0 4 34 38.96 3.70 4 0.38 1.56 7 Man . . . 8.P. 4.6 17.8 31.0 44*4 57.0 43630.06 1.58 1 Beaacl . . . 405 4.3 17.5 90.8 44.9 *:. 4 4090.C8 3.83 359.79 a. 25 9 Kan . . . N.P. 50.8 4.0 17.3 90.6 43.5 4 43 17. 'Jl 9.93 * 10 B«Ml ... 405 51.0 4.9 17.4 90.5 43.8 4 46 17.38 3.81 4 0.14 1.59 11 Man . . . 8.F. 13.4 SS.8 98.8 SB.9 4.6 4 48 38.76 1.79 13 Be»Kl ... 405 11.3 34.8 37.5 51.0 3.9 4 5-1 97. i '.9 4.08 358.76 9.36 19 Man . . . \ r. 31.8 45.9 58.9 11.6 94.3 1 4 54 58.39 9.79 14 •MH! . . . 405 . 45.8 68.8 13.0 95.0 4 58 58.80 4.39 4 0.58 1.67 Man . . . N.P. 39.8 43.0 56.0 9.5 93.9 5 056.10 9.96 ••Ml ... 405 30.1 43.9 56.4 9.5 33.3 5 4 66.30 4.50 4 0.30 1.54 Man . . . N.P. 36.8 50.0 3.3 16.5 99.3 5 7 3.18 3.08 IS B*Ml . . . 405 95.8 50.1 3.9 16.5 99.0 5 11 3.19 4.67 359.94 1.50 If Men . . . B.P. 55.9 8.S 31.5 94.8 47.7 51391.56 1.00 M •«•! ... 405 640 7.5 30.5 31.0 46.6 5 17 30.53 i.a 3 58.96 9.39 M Ma^ . . . N.P. 9.8 16 I 39.3 49.6 55.9 5 1939.<20 1.75 If •••1 ... 409 9.5 S9.0 49.5 53.0 5 S3 £8.97 +3.36 —3 59.77 -l.«l AT SANTIAGO DE CHILE. 79 JANUARY 3T, 185O-Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. I). E. An. ** Air. Wet. 8. e. s. s. 6. " h. m. s. Rev. m. s. Rev. Inches. • 0 23 Mars . . . S.F. 5.1 18.3 31.5 44.8 57.5 595 31.44 +1.18 28.0S6 80.2 62.8 24 Bessel ... 405 . . 17.5 30.5 44.0 56.5 5 29 30.53 3.56 —3 59.09 —2.38 23 96 27 Mara . . . N.P. Bessel ... 405 Mars . . . S.F. 19.2 12.5 24.5 25.7 25.5 37.8 38.8 38.7 50.8 52.2 52.3 4.0 4.5 4.6 16.8 5 31 38.68 5 35 38.72 5 37 50.78 2.10 3.77 1.41 *4 0.04 1.67 Then att. 76.°0 Bar. red. to 32° F. 27.955 .- Bessel ... 405 23.0 36.2 49.5 3.0 15.5 5 41 49.44 3.84 3 58.66 2.43 99 Mars . . . N.P. 39.4 52.6 5.8 19.3 32.0 5 44 5.82 2.19 30 Bessel ... 405 39.3 52.5 5.5 18.8 31.8 5 48 5.58 3.88 3 59.76 1.79 31 Mars . . . 8F. 38.0 51.5 4.5 17.8 30.5 5 51 4.46 1.70 33c B<*sel ... 405 37.3 50.5 3.5 29.8 5 55 3.62 4.05 3*9.16 2.35 33 Mara . . . N.P. 16.8 30.4 43.3 56.8 9.5 5 56 43.36 2.33 3» Bessel ... 405 ; 1C. 5 30.0 43.0 56.5 9.0 6 0 43.00 3.98 3 59.64 1.65 35 Mara . . . 8F. 11.0 94.4 37.4 50.5 3.5 6 2 37.36 1.55 36 ... 405 9.8 23.0 36.0 49.5 2.3 6 636.12 4.00 3 58.76 2.45 37 Mars . . . N.P. 7.4 20.5 33.5 46.8 59.5 6 8 33.54 2.33 36 39 •40 Bessel . . . 40.') Mars . . . P.P. 58.0 57.0 19.5 11.5 10.2 32.8 94.8 23.5 46.3 38.0 37.0 59.0 50.3 49.8 6 12 32.80 6 90 94.52 6 94 23.50 4.00 1.89 +4.42 . 3 59.26 -3 58.98 1.67 —2.53 Bes.el ... 405 Remarks. An almost unvarying atmospheric condition throughout the observations. This rendered the image sharp, and the apparent motion of the planet across the field very uniform. The star was much more distinct than last night, though there was considerable haze. a Recorded 12. Bi. at wire C. e Recorded 98. St. at wire E. 4 Recorded S. F. Results. b. m. a. Mean N.P. . . Eleven transit!) . . . 5 12 7.74 Mean 8. P. . . Nine transits . . 522 16.91 h. m. m. R. Correction for chronometer at 5 12 . . . — 1 33.95 Correction for chronometer at 5 22 — 1 33.97 m. s. • 4 0.006 - 3 59.024 Hev. — I .627 — 2.383 Santiago sid. time N. P. Santiago eld. time S. F. Interval = 0 31.71 = 0 16.43 h. m. B. 5 10 33.79 S 90 42.94 10 9.15 A P. F. limbs In A. R. reduced to arc Variation of A. R. In 10m. 9«. . . Observed P. F. diameter .... h. m. A p at 5 13 14.73 — 1.43 13.110 0.03 A N. 8. limbs micr. in rev 0.755 = 14.79 Variation of declination in 10m. 9s. . . — 0.30 Corr. for dlam. of raicr. wires ... — 2.20 Observed N. 8. diameter — 12.29 h. m. & f at 5 93 0.05 80 OPPOSITION OF MARS, 1849-50, JANUARY *8. 18SO. I ti Object. Chronometer time of iraniil. .Mean of wires Micr. Plain-l— Star. Bar. TlifrniomHen A. B. C. 11. E. Ac. At Air. Wet. a. a. a. a. > h. m .. BCT. m. ». Rer. : 1 • • 1 9 3 4 5 Man . . . 8.P. ItHMl . . . 405 M.4 35.8 19.8 43.4 98.5 50.5 48.8 33.9 56.5 3.5 46.5 9.8 55.5 16.8 14.8 59.0 99.6 99.6 43948.80 4 36 33.03 4 38 .Vi.il 4 49 41.8R 4 46 3.54 +0.89 4.»4 1.96 5.13 1.05 -344.93 345.34 -4.05 3.17 * • Ther. all. 75°4 Bar. ml. to33-F. 97.959 77.6 59.9 Man . . . N.P. B*»el ... 405 Man . . . 8.F. 30.4 15.5 37.3 6 Bewi . . . 405 . . . . 48.5 1.5 14.5 4 49 4S.:H 5.38 3 44.80 4.33 7 M.r. . . . N.P. 91.0 34.5 47.8 1.9 13.6 4 53 47.09 9.97 8 BCMTI ... 405 M 90.0 33.9 46.7 59.0 4 56 33.14 5.69 345.53 3.95 1 Mm . . . 8.P. 55.5 8.8 93.4 35.5 48.9 45833.08 1.66 10 Brnel ... 405 • • 53.9 6.5 90.0 32.5 5 9 6.45 5.69 344.37 4.03 11 Man . . . N.P. 48.0 1.9 14.5 97.9 40.5 5 6 14.49 1.57 H Bonl ... 405 33.8 45.5 59.8 13.9 96.0 5 959.86 4.85 345.44 3.98 13 Mara . . . 8.F. 30 48.0 1.9 14.5 97.3 *5 19 1.14 0.90 14 Bevel ... 405 • • 39.8 45.9 68.8 11.9 5 15 45.40 4.93 3 44.96 4.09 1C Man . . . N.P. 91.0 34.3 47.5 0.5 13.5 5 17 47.38 | 1.77 It Bevel ... 405 • • 91.9 • • 47.0 69.5 5 91 33.79 5.00 346.43 3.93 17 Man . . . S.F. K.O 99.3 49.4 55.6 8.4 593 49.34 1.13 18 Beoel ... 405 • • 14.9 97.0 40.9 63.0 59797.00 5.18 344.66 4.05 18 90 Man . . . N.P. Bevel ... 405 51.9 9.5 54.3 99.4 7.3 36.0 90.5 48.8 33.5 5 99 23.58 533 7.30 1.98 5.19 3 44.73 3.91 81 Man . . . 8.P. 41.8 55.9 8.9 91.5 34.3 535 8.90 1.33 93 Bevel ... 405 95.5 36.8 59.0 5.3 18.0 5 3851.93 5.34 343.73 4.01 S3 Man . . . N.P. 98.5 39.8 59.9 6.1 19.9 5 40 59.90 9.33 94 BOM! ... 405 11.5 94.5 37.5 51.1 3.6 5 44 37.61 5.69 3 44.74 3.90 as Man . . . B.P. 1.8 15.9 98.4 41.5 54.4 5 4698.96 1.64 91 Bwd ... 405 • • 58.5 11.6 95.1 37.7 550 11.63 5.69 3 43.37 4.05 97 Man . . . N.P. 16.8 30.9 43.4 66.8 9.5 5 53 43.34 9.69 98 Bevel ... 405 1.5 14.8 97.8 41.9 63.8 5 57 97.89 5.90 344.48 3.98 99 Man . . . 8 P. 8.8 90.3 33.3 46.8 59.5 5 59 33.34 1.96 30 Bevel ... 405 50.5 3.8 16.8 30.3 49.7 6 3 16.89 5.98 3 43.48 4.09 31 Man . . . N.P. 7.S 90.5 33.6 47.0 59.8 6 533.69 1.21 . a B«Ml ... 405 • • 6.0 18.0 31.4 44.3 6 9 18.08 4.40 3 44.46 3.19 33 Man . . . S.F. 13.5 97.0 40.3 53.5 6.5 6 11 40.16 0.98 34 BeaMi ... 405 67.0 10.5 93.5 36.8 49.5 6 1593.46 4.31 3 43.30 4.03 35 Man . . . N.P. 9.8 99.5 35.8 49.1 9.0 6 18 35.80 1.05 X BevH ... 405 54.4 • • 90.7 34.0 46.8 69990.70 4.33 344.90 3.98 37 Man . . . 8.P. 49.3 9.3 15.5 98.8 41.5 6 35 15.48 1.88 38 BoMl ... 405 39.9 46.3 50.5 19.6 94.8 69859.90 6.03 3 43.79 4.15 • Man .... N.P. 19.8 33.0 46.0 59.5 19.1 6 31 46.08 9.93 49 ••Ml ... 405 . . 17.3 30.5 43.7 56.5 6 35 30.40 6 96 344.39 3.33 41 Man . . . B.P. 44.8 57.8 11.0 94.3 37.9 63811.03 9.34 49 ••Ml. . 405 97.8 41.0 54.3 7.5 90.3 6 41 64.18 1 6.41 3 43.16 4.07 43 Man . . . N.P. 53.5 7.5 90.5 34.3 46.8 6 44 90.59 3.35 44 BMW! ... 405 38.8 51.8 6.0 18.0 31.0 6 48 4.99 6.85 3 44.40 3.50 43 •• Man . . . B.P. Bevel ... 405 19.0 54.8 95.0 38.3 91.9 61.5 34.5 4.5 47.9 6 61 38.96 6 6591.10 1.66 +5.81 -349.84 —4.95 AT SANTIAGO DE CHILE. 81 JANUARY 88, 1850— Continued. Remarks. Most of the observations have been made with extreme difficulty. The star is so indistinct as to be scarcely observable at all. This, in a manner, nay account for the great discrepancies at times ; but it is considered proper to give everything precisely as observed. a Recorded 53.69. at wire A. Results. h. m. s. m. s. Rev. / n Mean S. F. . . Twelve transits . . . 5 41 44.38 — 3 43.826 .... —4.088 ... =1 19.67 Mean N. P. . . Eleven transits . . . 5 41 49.16 — 344.977 .... —3.265 ... =1 3.63 h. m. m. e. h. m. s. Correction for chronometer at 5 42 . . —1 37.55 . . . 5 40 6.83 Correction for chronometer at 5 42 . . —1 37.55 Santiago aid. time N. P. ... . . . 5 40 11.61 . . . 4 78 A P. F. limbs in A. R. reduced to arc . . 17.26 . . 0 823 — 16 04 Variation of A. R. in 5« . . — 0.01 Variation of declination in 5». . . . . — 0.00 17.35 Con*- for diam. of niter, wires . . . . — 2.20 Observed N. S. diameter . . . . . 13.84 h. m. ii b. m. » A t at 5 42 . . 0.08 A p at 5 42 . 0.07 JANUARY •;•.'. 185O. No. for reference. Object Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. £. An. A A Air. Wet. 8. r. l. >. S. h. m. •. Rev. m. s. Rev. Inches. • e 1 Mars . . . N.P. 17.8 31.3 44.4 57.6 10.5 4 19 44.39 +1.44 28.088 71.9 59.9 a Bessel ... 405 . . 58.7 11.5 95.9 . 4 23 11.71 6.05 -327.39 —4.61 3 4 5 Mara . . . 8.F. Beuel ... 405 Mara . . . N.P. 15.6 39.0 29.9 52.5 49.3 9.2 5.5 55.5 99.5 18.9 8.5 35.0 31.6 4 38 42.23 4 33 9.07 4 35 5.50 0.76 6.16 1.74 396.85 5.40 Ther. att. 70°. 8 Bar. red. to 32" F. 27.973 C Bond ... 405 • • • • 33.0 • • 58.9 4 38 32.89 6.40 3 97.39 4.66 7 Mara . . . B.F. 99.9 35.6 48.5 9.0 14.6 4 40 48.58 1.16 8 lli-.--.-l ... 405 1.5 14.8 38.9 40.5 4 43 14.65 6.66 3 96.07 5.50 • Man . . . N.P. 54.8 8.5 91.6 35.9 47.8 4 46 21.58 3.05 10 BeHel ... 405 91.5 34.8 47.8 1.9 13.7 4 49 47.80 6.71 3 96.22 4.66 lla Mara . . . S.F. 14.1 87.3 40.5 53.8 6.8 4 54 40.50 1.56 12 II.-.— -1 ... 405 40.9 53.5 6.5 19.8 32.5 4 58 6.50 7.03 3 96.00 5.46 13 Mara . . N.P. 36.9 50.9 3.5 16.8 99.5 5 0 3.52 3.54 14 Beuel ... 405 3.8 17.8 30.9 43.5 56.3 5 3 30.32 7.19 336.80 4.65 15 Man . . . S.F. S.5 18.7 31.8 45.3 S8.0 5 731.86 3.03 16 11. ---.-1 . . . 405 31.5 44.6 57.7 11.1 93.6 i 10 57.57 7.38 3 25.71 S.36 17 Mara . . . N.P. 56.6 9.8 93.8 36.2 48.8 5 13 22.84 3.94 u Beuel ... 405 23.2 38.7 49.8 3.2 15.8 5 16 49.74 7.61 3 96.90 4.67 19 Mars . . . S.F. 39.0 45.5 58.8 12.0 34.8 5 18 58.62 0.79 20 Bemel ... 405 58.0 11.2 94.9 37.7 50.3 5 22 24.28 6.21 3 25.66 5.42 31 Mara . . . N.P. 57.5 10.6 23.7 37.0 49.8 5 34 23.72 1.57 32 II. — I ... 405 37.8 50.5 4.3 16.5 5 27 50.68 6.95 326.96 4.68 93 Mara . . . S.F. 28.8 49.0 55.3 8.5 21.3 5 39 55.18 0.78 34 Bes»el ... 405 54.6 7.7 90.8 34.3 46.8 5 33 20. K> +6.21 —325.64 —5.43 11 OPPOSITION OP MASS, 1849-50, J \M \l IV «9, lN5U-fontl ......I. ; C trrtimc of mn>i . v Mfcr. r ajaj -Star. i . T . -:\ .1 Ob|«t A. B. C. D. E. A«. A A nut. Air. 6 R»v Rrv. i . • • m BFT. m. •. Mi • - 25 Man . . . N.P. 91.5 34.8 47.7 1.4 13.8 5 36 47.84 +1.66 98.088 71.9 59.9 98 B«Ml . . . 405 . . 1.5 14.5 97.8 40.3 5 40 14.43 6.34 —396.59 -4.68 97 w » Man . . . f.r. Bei*eJ . . 405 Mui . . . N.P. 11.0 31.5 95.1 M.9 49.8 38.9 37.3 9.8 51.4 50.8 16.3 4.8 3.4 98.8 17.6 5 48 37.34 5 48 9.84 S 4751.49 1.00 6.46 1.80 395.50 8.46 Ther. an. 70-. 8 Bar. red. 10 33* F. 97.973 X Bowl . . . 40S 51.6 4.8 18.0 31.4 44.1 5 51 17.98 6.61 3 96.56 4.81 31 HUB . . . 8.F. 1.9 14.5 97.7 41.3 83.7 5 5397.68 1.97 a Bevel ... 405 96.5 39.5 53.5 6.0 18.8 5 56 52.66 6.83 3 94.98 5.56 33 Mara . . . N.P 33.4 46.7 59.8 19.8 95.5 558 59.64 3.19 34 Be*atl ... 40} 0.0 13.0 96.1 39.5 59.9 6 326.16 6.89 996.53 4.70 39 Mm . . . P.P. 49.5 •-. 15.7 S9.1 41.8 6 4 15.79 1.59 X Bmrl . . . 405 14.6 97.5 40.8 54.5 6.8 6 7 40.84 7.11 395.19 5.59 37 M«ra . . . N.P. 59.6 19.8 96.0 39.5 51.9 6 996.00 9.15 SB BCMel ... 405 96.1 . 53.3 5.8 18.5 6 19 53.38 6.90 396.38 4.75 39 Mtn . . . 8.P. 36.2 49.3 9.5 15.8 98.5 6 15 9.46 1.73 40 Beaael ... 405 1.9 14.5 97.5 41.0 53.8 6 18 97.56 7.25 395.10 5.59 •41 Man . . . N.P. 69.3 19.5 95.7 30.5 51.8 6 91 95.76 9.44 49 Bwttl . . 405 95.5 38.6 51.6 5.9 17.8 6 94 51.74 7.90 395.98 4.71 43 Man . . . 8.F. 13.6 97.1 40.0 53.5 6.3 6 26 40.10 1.78 44 Beaael ... 405 38.8 SI .8 4.8 18.4 31.0 630 4.96 +7.30 -334.86 —5.59 Remarks. Planet and nar without much flickering motion or flaring light, and the latter evidently more distinct thin lut night after the twilight paned. It a a*en very clearly In the unilluminnted telencopc, and might have been measured during twilight. a Recorded 30. 5f. Mr.n N. P. Mean 8. F. Variation of A. K. In 6m. Obwmd P. F. diameter h. m. A» atiSJ . JtWwto. h. m. a. m. a. Rev. / » •en irararu ... 5 33 9.93 — 3 36.699 .... —4.694 . .' . . =1 31.41 •en transit! . . . 5 39 30 03 — 3 35.590 .... —5.468 . . . . =146.57 h. m. m. >. b. m. t. •tec at 5 93 . . . — 1 41.13 Rantlago >(d. time N.P 5 91 91.79 •trr at 5 99 . . . —I 41.14 Santiago fid. time 8 F. . 5 37 3d 88 Interval 6 17.09 „ a •duced to are ... 16.63 A N. 8. limb* micr. in rev . 0.774 = 15.09 i. 17i —1.30 Variation of declination in 6m. 17«. . — 0.19 r 15 33 Corr. for diani. of micr. wircf . . 2.90 Obaeived N. 8. diameter .... 19.77 .. h. M,. „ . . . 0.10 A f at 5 99 0 II .1 \M \M1 30, IRAQ. Cloudy. AT SANTIAGO DE CHILE. 83 JANUARY 31, 1850. 1 Chronometer time of transit. Planet— Star. Thermometers B • Micr. Bar Object. A. B. C. D. E. A 0. A£ Air. Wet. 1 _ 0 8. 8. 8. 8. B. h. m. s. Rev. m. s. Eev. Inches. o a Z 1 Mara . . . N.P. 18.5 31.8 45.4 58.3 11.0 4 34 44 93 + 1.23 28.127 73.0 61.0 2 Brssel ... 405 59.8 13.5 36.8 40.5 53.6 4 37 96.64 «.47 —3 41.79 —7.24 Ther. an. 3 Mars . . . P.P. 7.5 30.8 31.0 47.4 0.2 4 39 33.98 0.42 72°. 0 4 Brssel . . 405 .. 1.6 14.8 28.1 40.8 4 42 14.73 8.33 3 40.75 7.91 Bar. red. to 32° F. I 1 28.008 5 Mare . . . N.P. 38.5 51.5 4.5 18.0 30.6 4 44 4.63 1.39 6 Bessel ... 405 30.3 33.5 46.5 59.5 12.5 4 46 46.46 8.46 3 41.84 7.17 7 Man . . . S.F. 11.5 94.8 38.5 51.5 4.3 4 48 38.19 0.70 8 Bessel ... 405 59.7 5.9 19.1 33.4 45.0 4 51 19.02 8.74 2 40.90 8.04 9 Mars . . . N.P. 47.4 0.5 13.6 97.0 39.5 4 53 13.60 1.71 10 Bessel ... 405 41.8 55.5 8.8 33.4 4 55 55.53 8.93 3 41.93 7.21 11 Mars . . . S.F. 1.9 14.5 37.5 40.8 53.8 4 58 97.56 1.11 12 Bessel ... 405 41.8 55.0 8.0 31.5 34.3 5 1 8.13 9.15 9 40.56 8.04 13 Mara . . . N.P. 13.0 96.9 39.5 99.8 5.6 5 4 39.43 3.07 14 Bessel ... 405 • • 8.9 31.3 34.5 46.5 5 7 21.00 9.31 9 41.58 7.24 15 Mara . . . S.F. 9.6 15.7 38.8 43.9 54 8 5 9 98.83 0.45 16 BesMl . . 405 43.5 56.5 9.5 93.8 35.3 5 19 9.59 8.49 340.70 7.97 17 Man . . . N.P. 96.4 39.3 52.5 5.6 18.5 5 13 53.48 1.34 18 Bessel ... 405 7.5 90.5 33.5 47.0 59.6 5 16 33.63 8.51 3 41.16 7.17 19 Man . . S.F. 33.8 37.0 50.3 3.5 16.3 5 1850.16 0.69 SO Besstl ... 405 4.5 17.5 30.5 43.8 56.5 5 91 30.56 8.64 3 40.40 7.95 91 Mara . . . N.P. 53.0 6.9 19.4 33.6 45.3 5 93 19.30 1.49 99 Bessel ... 405 34.5 47.5 0.6 13.8 98.5 596 0.58 8.76 9 41.98 7.97 23 Mars . . S.F. 93.0 36.5 i 49.8 3.0 16.3 5 37 49.79 0.86 94 Bessel ... 405 • • 16.8 99.8 43.3 56.6 5 30 30.03 8.83 9 40.31 7.97 25 Mara . . . N.P. 31.1 44.1 57.3 10.5 33.9 5 33 57.34 1.78 96 Bessel ... 405 13.0 95.9 38.5 51.6 4.5 5 35 38.38 9.01 9 41.19 . 7.33 97 Mara . . . S.F. 19.3 33.4 45.5 58.8 11.5 S 37 45.48 1.06 98 Beuel ... 405 59.8 13.7 96.0 39.5 52.9 5 40 96.04 9.13 9 40.56 8.07 99 Man . . . N.P. 18.8 39.0 45.0 58.4 11.9 5 49 45.08 1.95 30 • Bessi-l ... 405 59.8 19.8 95.8 39.3 51.8 5 45 95.88 9.19 9 40.80 7.34 • Man . . . S.F. 38.0 41.0 54.0 7.5 90.3 5 48 54.16 1.30 32 a Bessel ... 405 • • 33.7 47.2 0.9 5 51 33.87 9.39 9 39.71 8.09 33* Mara . . . N.P. 43.9 56.6 9.5 93.0 35.5 5 54 9.56 3.13 34 Bend ... 405 93.7 36.8 1 49.8 3.5 16.4 S 56 49.84 9.90 9 40.98 7.08 39 Mara . . . S.F. 7.8 31.0 34.3 47.6 0.4 6 0 34.33 1.39 36 Bessel ... 405 47.5 0.6 13.7 37.3 39.8 6 3 13.78 9.47 3.39.58 8.08 37 Mars . . . N.P. 51.6 5.3 18.3 31.6 44.4 6 5 18.93 j 1.99 38 Bessel ... 405 32.5 58.7 19.1 25.0 6 7 58.80 8.48 34058 ! 7.19 39 Mara . . . 8.F. 43.0 55.9 8.5 91.8 34 5 6 10 8.40 0.30 40 Bessel ... 405 31.5 34.8 48.0 1.5 14.3 6 12 48.00 8.43 9 39.60 8.12 41 Mara . . . N.P. 33.0 36.0 49.4 9.4 15.4 6 14 49.24 1.03 43 i Bessel ... 405 3.3 29.5 55.8 6 17 39.62 8.39 2 40.36 7.31 43 Mara . . . S.F. 41.5 55.0 8.3 91.5 34.5 630 8.16 0.63 44 Bessel ... 405 91.5 34.4 47.5 1.0 13.6 6 33 47.60 8.69 2 39.44 8.06 45 Mars . . . N.P. 91.5 34.5 47.7 1.0 13.6 6 36 47.66 1.38 48 Beswl ... 405 1.6 [14.6 98.0 41.9 53.8 6 39 97.84 +8.67 —9 40.18 —7.99 84 OPPOSITION OF MABS, 1849-60. J\M MO .11. iv.ll i ..in. „„..!. £ i fMjtct. Cbronnmelcr time of lrmn.il. Micr. Planet— Sur. Bar. r mm •M*n A. B. C. D. E. A«. 4JL Air. \v.i Rev. m. a. Her. Inch*.. • • 47 Man . . . 8.F. 96.0 30.1 59.3 5.0 18.5 6 31 59.30 + 0.68 mju 73.0 (1.0 • BCM«| . . . 405 . . 18.3 31.9 44.7 57.5 C 34 31.39 8.75 —9 39.03 —8.07 4» 90 SI lf«n . . . N.P. BMM! . . . 405 Man . . . S.P. 37.9 17.S 11. 8 50.5 30.8 95.0 3.5 43.8 38.0 16.8 57.1 51.3 99.5 9.8 4.3 ( 37 3.60 6 37 43. fO « 4938.00 ' 1.19 8.61 0.71 9 40.30 7.48 Ther.atl. 79' .0 Bar. red. IP a >• 38.008 • Bewel ... 405 50.8 3.7 17.0 30.9 49.8 6 45 16.80 +8.87 | H •«! —8 16 Lut night wa* cloudy, and this afternoon there has been a Know-storm on the Cordillera*, N.E. from Santiago; but the whole evening has been extremely favorable for obit nation*, and the m ensures are regarded an tolerably good — the star bearing illuininalion pretty well. a Hurried. (There was an apparent dip in declination after obaerr- ing the *ur on wire B. Mi-an N. P. Mean 8. F. Tlurtetn tramiiu Thirteen traneiu Correction for chronometer at 5 34 Correction for chronometer at 5 40 Jieaults. h. m. •. 5 34 96.59 5 38 36. 08 m 8. — 1 48.06 — 1 48.08 m. •. — 9 41.011 — 9 40.031 Rev. + 7.935 + 7.989 , Santiago >id. time for N. P. Santiago sid. lime for 8. F. Interval = 991.01 = 9 35.70 h. m. -. 5 39 38.46 5 37 48.00 5 9.54 A P. F. limbi in A. R. reduced to arc Variation of A. R. in Sm. 9i. . . . Obat-rred P. F. diameter . h. m. A«al5 34 . 14.70 - 1.40 13.30 0.15 A N. 8. limbi micr. in rev 0.754 = 14.69 Variation of declination in 5m. 9>. . . — 0.07 Corr. for diam. of micr. wirea ... — 9.90 Observed N. 8. diameter 1-J. u h. m. n A f al 5 39 0.17 OPPOSITION OF MARS: 1851-52. DECEMBER 16, 1851. No. for reference. Object. Chronometer time of transit. Mean of wire: Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. Ad. Air. Wet. B. V. 9. >. g. b. m. a. Her. m./*. Rev. Inches. • • 1 Mara . . . S.P. 25.0 37.5 50.0 2.5 16.0 6 40 50.20 — 3.761 28.040 61.3 56.2 2 B. A. C. . . 3181 11.5 34.5 37.0 49.5 2.0 6 43 36.90 7.79 —2 46.70 +4. . . . S.P. 38.5 51.0 3.5 15.8 38.5 7 14 3.46 6.66 8 B. A. C. . . 3181 25.0 37.5 3.6 15.5 7 16 50.16 11.02 2 46.76 4.36 9 Mara . . . 8.P. 30.8 33.5 46.0 58.5 11.0 7 18 45.96 7.091 10 B. A. C. . . 3181 7.5 30.5 32.8 45.1 58.0 7 21 32.78 11.43 3 46 82 4.33} 11 Mare . . . S.P. 19.5 32.0 44.6 57.0 9.5 7 23 44.52 3.00 13 B. A. C. . . 3181 6.5 19.0 31.5 44.0 56.5 7 36 31.50 7.35 2 46.98 4.35 13 Mare . . . S.P. 30.5 43.0 55.5 8.0 20.7 7 38 55.54 3.31} M B. A. C. . . 3181 17.4 30.0 43.3 55.0 7.5 7 31 42.44 7.67 2 46.90 4.351 156 Man . . . S.P. 40.5 53.0 5.5 17.8 30.5 7 34 5.46 3.55 16 B. A. C. . . 3181 • • 39.5 32. 5 4.5 17.5 7 38 52.20 7.91 346.74 4.36 17 Mare . . . S.P. 32.0 45.5 57.2 9.5 32.5 7 39 57.34 4.92 18 B. A. C. . . 3181 19.0 31.5 44.0 56.5 9.5 7 43 44.10 9.34 2 46.76 4.42 19 Man . . . S.I1. 46.8 59.5 19.0 34.5 37.0 7 45 11.96 5.15 30 B. A. C. . . 3181 33.5 46.5 59.0 11.3 34.0 7 47 58.86 9.60 2 46.90 4.45 31 Mare . . . N.F. 0.2 12.8 35.3 38.0 7 50 12.78 4.50 23 B. A. C. . . 3181 33.5 46.0 58.5 11.0 24.0 7 52 58.60 9.90 2 45.82 5.40 S3 Mare . . . N.F. 38.0 50.5 3.0 15.6 28.3 7 55 3.06 4.77^ 34 B. A. C. . . 3181 23.8 36.5 49.0 1.5 14.3 7 57 49.00 10.14 2 45.94 5.36J S5r Mare . . . N.P. 15.0 27.5 40.0 53.5 5.3 8 0 40.06 5.31 36 B. A. C. . . 3181 0.5 13.5 36.0 38.5 51.5 8 326.00 10.70 2 45.94 5.39 27 Mare . . . N.F. 3.0 15.5 38.0 40.. 1 53.2 8 5 28.04 5.52 28 B. A. C. . . 3181 48.8 1.5 14.0 26.5 39.0 8 8 13.96 10.94 2 45.92 5.42 . 39 Mare . . . N.F. 43.0 55.5 8.0 30.5 33.5 8 10 8.10 5.68 30 B. A. C. . . 3181 39.0 43.5 55.0 6.5 19.3 8 13 54.46 11.14 2 46.36 5.46 :iirf Mare . . . N.F. 3d. 8 46.2 59.0 11.5 24.0 8 14 58.90 5.911 32 B. A. C. . . 3181 30.0 32.5 45.0 57.8 10.2 8 17 45.10 11.43 2 46.20 5.501 33 Mara . . . N.F. 55.5 8.0 30.5 33.0 45.5 83020.50 5.99 34 B. A. C. . . 3181 41.3 53.5 6.5 19.0 31.5 8 33 6.36 11.57 2 45.86 5.58 35 Mara . . . N.F. 17.2 30.0 42.5 54.8 7.5 8 25 42.40 8.14 36 B. A. C. . . 3181 3.3 15.5 40.4 53.5 8 28 28.16 —11.74 —2 45.76 +5.60 86 OPPOSITION OF MARS, 1851-52, I)K< KMBKK 18. 1KA1-C ontlnurd. i Object. rhronomrii-r time of transit. • Iran of wire* Micr. Planet-Star. Bar. Thennoa , Ma A. B. C. D. E. A«. A. t'orr. for diara. of micr. wire* . . Observed N . 8. diameter .... Santiago sid. time N. F. Santiago sid. time 8. P. Interval . . 1.915 = 93.68 — 6.78 — 9.90 14.70 b. m. s. . 6 46 17.50 . 8 46 4.50 13.00 A P. F. limb, in A. R. reduced to are Variation of A. R. in 13. Observed P. P. diameter . b. m. A f at 7 18 A fM8 15 10.80 • 0.05 10.75 0.08 0.09 A N. S. limbs micr. In rev. . Variation of declination in 13.. Corr. for diam. of micr. wires Observed N. S. diameter . . h. m. A p at 8 48 A f u 8 48 0.790=15.40 — 0.06 13.14 0.06 0.07 DECEMBER IT, I- .1 . Cloudy. DECEMBER 18, Cloudy. AT SANTIAGO DE CHILE. 87 DECEMBER 19. 1851. 4 Chronometer time of transit. Planet— Star. Thermometers • M nnn nf nrirn M ' ~- Ttar | Object. A. B. C. D. ''. E. 1 A a. A A Air. Wet. 1 I B. 9. 8. B. ,. ' b. m.B. Rev. i. Rev. Inches. i • X i Berael . . . 275 . 36.8 72 36.80 -10.47} 28.095 53.5 49.6 2 Mars . . . S.P. . . 33.5 • . . 73 33.50 5.10 +56.70 +5.37} Ther. att. 3 Bessel ... 375 t t 4.0 , 7 8 4.00 10.98 61°. 2 4 Han . S.P. 0.2 7 9 0.20 5.43 56.20 5.56 Bar. red. to 32° F. 28.010 5 Bessel ... 375 53.0 . . 7 10 53.00 10.99 6 Mare . . . S.P. 49.0 . . 7 11 49 00 S-SB 5R.OO 5.43 7 Beuel ... 275 2.5 15.3 7 13 15.14 11.29 8 Mara . . . S.P. 58.5 11.0 7 14 10.99 5.82 55.85 5.47 9 Bessel ... 275 11.0 34.0 36.3 7 15 36.32 11.49t 10 Mara . . . 8.P. 7.6 30.0 33.6 • • 7 16 32.62 5.91} 56.30 5.51 11 Be?sel ... 275 16.5 20.5 43.S . . . 7 18 4S.05 11.88* 13 Mara . . . S.P. 12.7 35.3 37.5 . . 7 19 37.72 6.10 55.67 5.73} 13 Bewel ... 875 91. » 33.5 46.9 7 21 46.11 11.96} 14 Man . . . S.P. 17.0 89.9 42.5 • • 79343.35 6.41} 56.24 S.55 15 Beuel ... 375 t t 11.9 94.5 t 7 94 94.44 13.18 16 Mare . . . 8.P. 55 0 7.7 90.3 • • • • 7 25 90.21 6.52} 55.77 5.65} 17 BesMl ... 275 35.4 47.5 0.5 . . 7 37 0.35 12.36 18 Mar. . . . %P. 31.0 43.5 56.9 • • 7 37 56.13 6.70 55.77 S.66 19 Bessel ... 275 13.5 36.3 38.8 , t 7 39 38.71 13.56} 20 Mare . . . 8.P. 9.5 92.0 34.8 • • • • 7 30 34.65 7.05} 55.94 5.51 21 Beiwel ... 275 30.5 34.5 47.0 . 7 32 46.55 12.92} 33 Mara . . . N.P. 18.8 43.7 7 33 43.86 6.50 67.31 6.42} S3 Benel ... 375 11.8 34.5 37.0 t t . f 7 35 36.98 13.18} 34 Mare . . . N.F. 8.6 31.9 33.8 • • • • 7 36 33.75 6.67 66.77 6.51} as Beuel ... 875 . , 96.8 39.3 t . 73839.94 7.84 36 Man . . . N.F. 10.5 33.5 36.0 • • 73635.88 1.31} 56.64 6.53} 87 Bewcl ... 375 11.0 93.5 36.9 741 30.11 8.96} S8« Mare . . . N.F. 7.5 30.3 32.8 • • 7 49 33.75 2.00 56.64 6.56} 29 Bewel . . . S7S 13.3 35.8 38.5 , . 74438.38 8.68} 30 Mare . . . N F. 9.7 9i .a 34.6 • • 7 45 34.38 3.10 56.00 6.58} 31 Be»el ... 275 45.S 58.0 10.5 . 7 47 10.55 8.91 33 Man . . . N.F. 42.5 55.3 7.5 . . . . 7 48 7.65 2.;o 57.10 0.58 33 Bern! ... 275 52.0 4.5 17.9 7 50 17.11 9.08 34 Mara . . . N.F. 48.6 1.3 13.6 7 51 13.68 3.47 56.57 6.61 as Bewel ... 375 19.5 32.0 45.0 7 52 44.71 9.19 36 Mara . . . N.F. 16.9 28.8 41.3 7 53 41.32 3.59} 56.61 6.59} 37 Bessel ... 875 S9.8 13.5 35.0 t 7 55 24.98 9.41} 38 Man . . . N.F. 56.5 9.0 21.5 • • 7 56 81.55 2.77 56.57 6.64} 30 Busel ... 275 31 .5 44.2 57.0 7 58 56.78 9.59} 40 Mara . . . N.F. 28.3 41.0 53.5 7 59 53.48 3.91 56.70 6.68} 41 Beiiel ... 375 20.0 33.8 45.9 . 8 1 45.21 9.75 43 Mara . . . 8.P. 38.S 41.0 . . 8 3 40.99 3.79 55.78 5.96 43 Bow,! ... 275 0.0 12.9 25.3 8 4 25.98 9.89 44 Mara . . . S.P. 56.3 8.5 91.0 8 521.13 3.93 55.84 5.96 45 Beuel ... 375 13.5 98.0 38.6 . 8 7 38.5b 10.08 46 Mara . . S.P. 9.0 21.5 34.3 . . 8 8 34.15 —4.08 +55.57 +6.00 , - OPPOSITION OF MARS, 1851-52, I>KC KMHKK 1», IHSl-toiHI,.,, .1. No. for reference. Object. Chronometer time of traiuit. M. t Mfel • Micr. Planet— Star. Bar. I'll' riiiniMt I. r- A. B. C. 0. B. An. A* Air. Wet. h. m. a. Rev. a. Rev. Inchea. • • 47 Beaeel ... 375 . 14.5 97.0 . . 8 10 96.99 -10.18 98.087 51.5 49.6 48 Man . . . 8.P. S7.9 9.7 92.5 . . . . 8 11 22.35 4.14 +55.36 +6.04 49* SO SI BeaMl ... 975 Man . . . S.P. Beaael . . . 975 98.5 94.0 96.9 41.0 36.5 39.0 53.6 49.0 51.4 • • 8 12 53.96 8 13 49.05 8 16 51.41 10.32 4.23 10.40 55.47 6.09 Ther. att. 60'. 5 Bar. red. ... M i: 28.002 9 Man . . . N.F. 92.5 35.1 47.7 • • 8 17 47.65 3.634 56.94 6.774 53 54 Beaael ... 975 Man . . . N.F. 21.5 18.6 34.1 31.5 47.0 44.0 • • • • 8 19 46.75 890 43.92 10.484 3.71 57.17 6.774 55 Beaael ... 275 49.2 2.0 14.5 f . 8 92 14.45 10.58 56 Man . . . N.F. 45.6 58.3 10.8 • • • • 8 23 10.78 3.764 56.33 6.814 57 c 58 Beaael ... 975 Man . . . N.F. 28.0 24.6 40.6 37.9 53.2 49.9 ' • • 8 24 53.15 8 25 49.78 10.704 3.89 56.63 6.814 59 Bowel ... 975 0.0 19.8 25.3 . 8 29 25.95 10.86 60 Man . . . N.F. 56.9 8.8 21.4 • • • • 83091.35 3.954 56.10 6.904 61 BeMel ... 975 49.6 55.0 8.2 f 8 32 7.81 11.02 •» Man . . . S.P. 38.0 50.4 3.4 8 33 3.15 4.90 55.34 6.12 83 BeaMl ... 975 48.0 0.5 8 35 0.49 11.14 64 Man . . . N.F. 31.6 44.3 57.0 • • . . 8 35 56.85 4.16 56.36 6.98 • 65 BeaMl ... 975 93.5 36.0 48.5 8 37 48.55 11.33 66 Man . . : S.P. 18.5 31.0 44.0 • • . . 8 38 43.72 5.10 55.17 6.23 vit BeaMl ... 975 0.5 13.5 96.0 . 8 41 25.88 11.63 68 Man . . . N.F. 57.0 9.5 22.0 • . • . 8 42 22.05 4.61 56.17 7.02 6V Beuel ... 975 35.5 48.3 1.0 8 44 0.81 11.72 70 Man . . . 8.P. 31.0 43.5 56.0 • . 8 44 56.05 5.49 55.24 6.30 71 73 Beaael ... 975 Man . . . N.F. 51.9 47.5 4.0 0.5 16.5 13.0 • • 8 46 16.45 8 47 12.88 11.794 -4.80 +56.43 +8.994 At the ( tore filling. Remarks. nt of observation* both object* were flaring and very unsteady, the atmoaphere being loaded with moisture, and iu tempera o 'mage tolerably uliarp. * Very iharp, but not perfectly mcady. c Sharp and steady. The white zone about the north pole of Mars distinctly viitible and marked by a dark line, the r.one appearing nearly one-nixlll of tin- di ameter of the planet. d Recorded Wk. 34m. Results. h. in. tt. MeanB. P. . . Firm ten tranniu . 7 18 7.71 Mean N. P. . . Pint ten Iranriu . 7 46 43.83 Mean 8. P. . . Neit flve traniiti . 8 821.53 Mean N. F. . . Neit five tran>lt» . 893 34.70 Mean 8. P. . . La«t three transit* . . 8 38 54.31 Mean N.P. . . La«t three traniita . . 8 41 50.59 h. m. m. >. Correction for chronometer at 7 18 . . . —1 21.46 Correction for chronometer at 7 46 . . . —1 21.64 fl. Rev. / /' f 56.044 . . . . +5.544 . . . . =1 48.05 H.W - . . . 6.573 . . . 9 8.01 55.604 . . . . 6.010 . . . 1 57.13 56.494 . . . . 6.817 . . . 2 12.89 55.250 . . . . 6.917 . . , , . 9 1.17 + 56.390 . . . . +6.898 . . , . =9 16.39 h. m. >. Santiago Kid. 7 16 46.95 S M,'l IJI 1 M.|. time N. F 7 45 M.I!) Interval . 28 35.94 AT SANTIAGO DE CHILE. DECEMBER 19. 1851— Continued. Results — Continued. 89 A P. F. limbs in A. R. reduced to arc ... 9.70 Variation of A. R. in 28m. 36« + 3.55 Observed P. F. diameter 13.25 h. m. m. s. Correction for chronometer at 8 8 . . . —121.70 Correction for chronometer at 8 23 . . . — 1 21.74 A N. S. limbs micr. in rev 1.029 = 20.05 Variation of declination in S8m. 36*. . — 4.24 Corr. fordiam. ofmicr. wirea ... — 2.20 Observed N. S. diameter 13.61 h. m. s. Santiago sid. time S. P 8 659.83 Santiago sid. time N. F 8 22 19.96 Interval . 15 13.13 A P. P. limbs in A. R. reduced to arc Variation of A. R. in 15m. 13t. . . . Observed P. F. diameter .... Correction for chronometer at 8 38 Correction (or chronometer at 8 41 13.35 + 1.91 15.38 — 1 91.78 — 1 21.79 A N. 8. liuiba micr. in rev 0.807=15.73 Variation of declination in 15m. 13>. . — 2.25 Con. for diam. of micr. wires ... — 2.20 Observed N. S. diameter .... 11.97 h. m. a. Santi.ipoeid. lime S. P 83732.53 Santiago sid. time N. F. / 84038.80 Interval 2 56.87 A P. F. limbo in A. R. reduced to are . . . 16.05 Variation ol A. R. in 2m 56. + 0.31 Observed P. F. diameter 18.37 h. m. Apat7 18 0.10 A |l at 7 46 0.11 A pat 8 8 0.09 A N. 8. limbs micr. in rev 0.781=15.32 Variation of declination in 3m. 56>. . . — 0.44 Curr. for diam. of micr. wires ... — 3.30 Observed N. S. diameter . . . . 19.58 h. m. A pat 8 S3 0.10 A f at 8 33 0.08 A pat 8 41 0.11 DECEMBER Mil. 1851. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers A. B. C. D. E. A a A,!. Air. Wet. a. •. a. l. a. h. m. a. Rev. m. i. Rev. Inches. • • la Man . . . 8.F. 31.3 43.5 56.5 9.0 99.0 7 356.44 — 9.04 98.073 53.3 51.0 a 3 4 Bc«el ... 975 Man . . . 8.F. Benel . . . 27r> 4S.5 58.9 93.0 90.5 10.8 35.0 93.9 48.0 46.0 36.0 0.5 7 590.66 7 14 10.74 7 15 35.32 + 5.87J -9.61 + 4.90 —194.93 1 94.58 -14.91J 14.51 Ther. alt 60°. 4 Bar. red. to 32° F 27.990 5 Man . . . BF. 44.5 57.0 9.7 99.9 7 19 9.63 —10.00 8 Bemel ... 975 9.5 92.5 35.0 47.3 7 90 34.66 + 4.46 1 95.93 14.46 7 Man . . . 8.F. 9.0 91.7 34.3 46.8 . 7 91 34.33 —10.26 81 (Jewel ... 975 34.3 46.5 59.0 11.5 7 92 59.11 + «-lB, 1 24.88 14.444 * Man . . . 8.F. 33.0 45.8 56.0 10.5 7 95 58.11 —10.47 10 Bessel ... 975 10.5 93.1 3S.5 7 97 93.03 + 3.8.1* 1 94.91 14.324 11 Man . . . P.F. 3-2.8 45.5 58.0 10.5 . . 7 29 57.98 —10.71 13 Uessel . . .275 58.0 10.3 23.0 35.5 7 31 23.98 + 3.65 1 94.98 14.36 II Man . . . 8.F. 15.3 97.5 40.5 53.0 7 33 40.33 — 10.924 14 Bmml ... 975 40.5 53.1 5.5 18.0 7 35 5.56 + 3.35 1 25.33 14.274 15 Mars . . S.F. 6.0 18.5 31.0 43.5 7 38 31.03 —11.16 16 Besnol ... 375 31.5 44.0 56.8 9.0 7 39 56.61 + 3.06 1 25.58 14.33 17 Man . . . S.F. M 90.8 33.3 45.8 . . 7 M 33.26 —11.47 18 c Beswl ... 975 33.5 46.9 59.9 11.9 • • 7 42 58.76 + 9.78 1 85.50 14.25 19 Man . . . S.F. 17.2 99.fl 43.0 54.6 7 48 43.13 — 6.634 90 BesMl ... 975 43.5 55.9 8.0 90.5 7 SO 7.84 + 7.48 -1 25.71 —14.114 12 90 OPPOSITION OF MAKS, 1851-52, DECEMBER MO, Ix.M C ontlunr.l. 1 Chronometer tun* of Iran-it. V. i u ' Micr. Planrt— Slar. Bar -T 1 J ' ' ' Object* A. B. C. D. E. A «. Ai. Air. \\ • i i i. Inrhf*. • • m i. . ttt. a. 91 Man . . . 8.F. 50.0 11.5 94.0 37.0 . . 7 5994.16 — 6.89 •MM 53.3 51.0 • BCMPI . . . 975 91.5 37.0 49.7 9.9 . . 75349.64 + 7.98 —1 «5.48 —14.08 Ther. ait. 83 Mir* . . . S.F 95.0 37. B 50.9 9.5 . . 7 55 50. 1 1 — 7.061 60'. 4 94 Be»el ... 975 50.3 3.0 15.5 98.0 7 57 15.49 + 7.04 1 95.38 14.104 liar. red. 10 38' F. tr.M IS M«ra . . . 8.F. 95.9 37.5 50.5 3.0 . . 8 1 50.33 - 7.6S M Bowl ... 975 51.0 3.5 16.0 98.5 • • 8 3 16.04 + 6.30 1 95.71 14.05 0 Man . . . B.F. 46.6 59.3 11.7 94.9 8 5 11.73 - 7.76 98 Beaael ... 975 19.5 94.9 37.5 50.0 • • 8 6 37.51 + 6.93 1 95.78 13.90 • Mar. . . . B.P. 4.5 17.0 99.5 49.0 8 8S0.S3 — 7.90 30 BOM! ... 975 30.8 43.3 56.0 6.3 • • 8 955.89 + 6.06 1 98.36 13.96 31 Man . . . 8.F. 90.5 33.3 45.8 58.0 8 11 45.68 — 8.43 • Bend ... 975 46.0 58.8 11.9 93.8 • • 8 13 11.94 + 5.50 1 95.56 13.93 33 Mara . . . 8.F. 8.8 91.5 34.0 46.5 . 8 IS 33.98 — 8.57 34 BciMl ... 975 47.0 59.8 19.0 • • 8 18 59.58 + 5.36 1 95.60 13.93 •J Man . . . 8.F. 5.9 17.5 30.4 49.8 t t 8 19 30.96 — 8.69 • Hotel ... 975 30.5 43.0 55.6 8.9 8 90 55.61 + S.18J i as. 35 13.87J ._-.„-,' 53.0 51.1 37 Man . . S.F. 37.2 49.5 9.9 14.8 . . 8 93 9.91 — , 79 Thcr. an. 38 Bowl ... 975 3.0 15.5 28.0 40.5 894 98.04 + 5.03 1 95.83 13.89 50*. 5 Bar. red. »« Mara . . . 8.F. 48.8 1.5 13.5 96.5 . . 8 97 13.86 — 9.03 to 39* F. m.»H 40 B«*cl ... 975 14.8 97.5 40.1 59.5 • • 8 98 40.01 + 4.89 —1 96.15 -13.85 Remarks. A man unfavorable night throughout ; M no time w«« tile planet cither well deHned or steady ; and, consequently, the measure! are not s»ii«farlory. a Bad meainrei of both objeru. g and Huml ; star just visible ; entirely obscured at c Recorded 7*. 4Jm. meridian i nin.-ii . Results. b. in a. MeaaS. P 74854.39 m a. Her. — 1 95.401 ... — 14.173 . I It . . —4 36.93 b. in. m. a. direction for chronometer at 7 40 . . . — 1 35.90 Santiago «id. time S.F h. m. •. . . 7 47 90.00 h. m. A f at 7 49 M 0.23 DECEMBER ill, i - . I . £ e Oojwft. Chronometer time of tranrit. Mean of (rim. Mirr. Planet— Star. Bar. Thermometera. A. B. C. D. E. A«. AJ. Air. Wet. a. a. ». a. a. b. m. a. K.-v. «... Rev. Inchea. • • 1 Man . . . K.F. 91.7 34.5 46.8 50.5 19.9 63846.94 -4.974 H m 53.0 47.3 9 >• 4 BCMI ... 975 Mara . . . B.P. B~»l . . 975 9.5 90.8 9.6 15.5 33.6 15.0 98.0 46.9 97.3 40.5 58.8 40.0 53.9 11.5 59.6 6 40 97.94 6 4946.18 6 44 97.48 1.73 4.57 -8.144 -1 41.00 —1 41.30 —9.544 -9.494 Ther. an. ei-.o I! IT, r. .1 to 31 r 37.983 AT SANTIAGO DE CHILE. 91 DECEMBER : 1 . 1851— Continued. t Chronometer time of transit. Planet— Star. Thermometers. 1 Mean of wires. Micr. Bar. £ Object. A. B. C. D. E. A a. A ii. i Air. Wet. s c £ 8 8. a. s. 8. h. in. s. Rev. in. s. Rev. Inches. ' ° 5 Mare . , . S.F. 18.8 31.3 43.5 56.2 9.0 6 48 43.74 -4.96* 28.079 53.0 47.3 6 Bessel ... 275 0.0 13.5 35.0 37.8 50.5 6 4825.16 MH —1 41.42 —2.46 Ther. alt. 7 Mare . . . S.F. 57.5 10.0 32.5 35.2 48.0 6 50 32.64 5.96 61°. 0 8 Bessei ... 375 38.6 51.0 4.3 16.5 39.5 6 52 3.98 2.87J 1 41.34 2.384 Bar. red. to 32° F. 27.993 9 Mars . . . S.F. 34.0 46.5 59.3 11.5 24.6 6 53 59.16 5.64 10 Beimel ... 375 15.5 38.3 40.5 53.3 5.8 6 55 40.64 3.30 1 41.48 2.44 lla Mara . . . S.F. 34.0 36.8 49.3 1.6 14.5 6 57 49.34 5.90 13 Bessel ... 375 5.5 18.0 30.5 43.0 55.6 6 59 30.53 a. 52 1 41.38 9.38 13 Mara . . . S.F. 59.3 11.8 34.3 37.0 49.8 7 1 34.43 6.23 14 Bessel . . . 275 41.0 • • 6.3 18.8 31.5 7 3 6.27 3.92 1 41.85 2.31 IS Mare . . . S.F. 53.5 6.0. 18.5 31.3 43.7 7 8 18.58 6.95 16 I1---I ... 375 34.5 47.8 0.3 13.6 35.3 7 10 0.08 4.65 1 41.50 3.30 17 Man . . . S.F. 53.5 5.3 17.5 30.3 43.0 7 13 17.70 ' 7.18 18 Bessel ... 375 34.3 46.8 OM 13.0 34.5 7 13 59.43 4.98 1 41.72 8.32 19 Mara . . . S.F. 39.5 43.3 54.8 7.3 90.0 7 15 54.78 7.48 • Be«el ... 375 11.5 34.0 36.5 49.0 1.5 7 17 36.50 5.30 1 41.74 9.18 21 Man . . . S.F. 19.4 31.6 44.3 56.5 9.5 7 19 44.38 7.76 22 Bi-.se! ... 375 1.0 13.5 38.1 38.5 51.0 7 31 96.03 5.56 1 41.76 3.30 33 Mars . . . S.F. 47.5 0.2 13.8 35.5 7.35 0.30 8.40 34 BesMl ... 375 16.8 29.5 43.3 54.5 7.0 7 38 43.00 6.35 1 41.80 9.15 35 Man . . . S.F. 33.3 46.0 58.5 11.0 33.5 7 38 58.48 —2.02 36 BeMel . . . B7S 15.5 87.5 40.5 53.0 5.5 7 30 40.40 +0.10 1 41.94 2.13 37 Mara . . . S.F. 7.7 30.5 33.0 45.5 58.3 7 33 33.00 —3.07 M Berael ... 375 49.5 3.5 15.0 37.5 40.1 7 34 14.93 0.05 1 41.92 3.03 39 Mara . . . S.F. 9.0 31.6 34.3 46.8 59.2 736 34.14 3.39 30 Berael ... 375 Sl.O 3.5 16.3 38.8 41.5 7 38 16.18 ' 0.40 1 43.04 1.99 31 Mars . . . S.F. 53.5 6.3 18.8 31.3 44.0 7 43 18.74 2.69 33 Beuel ... 375 35.5 48.1 0.6 13.4 38.0 7 45 0.72 0.76 1 41.98 1.93 33 Man . . . 8.P. 16.0 38.6 41.4 53.5 6.3 7 46 41.12 •••) Ml BeMel . . . 975 58.1 10.6 83.3 35.5 48.5 7 48 33.18 0.931 1 43.06 1.93 35 Mara . . . S.F. 13.0 34.6 37.0 49.5 3.5 7 50 37. 13 3.09 36 BeMel ... 375 54.3 7.0 19.6 33.0 44.5 7 5i 19.46 1.17 1 43.34 i.m 37 Man . . . S.F. 13.3 35.8 38.4 50.8 3.5 7 57 38.36' 4.05 38 Be»«el ... 375 55.5 8.0 30.5 33.0 46.0 7 59 30.60 3.97 1 43.34 1.78 39 Mara . . . S.F. 7.0 19.5 33.2 44.8 57.5 8 1 32.16 4. Iff 40 Bes«el . . . 275 49.5 14.8 98.8 39.8 8 3 14.59 3.40 1 43.43 1.79J 41 Mars . . . S.F. 44.0 50.8 9.3 31. B 33.4 8 5 9.06 4.35 • Bessel ... 375 96.7 39.1 51.8 4.3 16.9 8 651.70 3.RO 1 43.64 1.75 43 Mars . . . S.F. 39.0 53.0 4.5 17.3 30.0 8 9 4.56 4.46 44 Beuel ... 375 23.0 34.5 59.8 13.5 8 10 47.20 2.81 1 42.84 1.85 45 Mars . . . S.F. 1.5 13.5 36.8 39.0 51.6 8 14 26.48 5.40 46 Beani-l . . . 375 44.0 56.5 9.0 31.7 34.3 B 16 9.10 3.79 ( -4:2.112 1.61 47 M»r« . . . S.F. 36.6 49.3 3.8 14.3 97.0 8 18 2.00 5.5-2 48 Bemel ... 375 19.3 3J.O 44.5 58.8 9.5 8 19 44.40 3.87 1 42.40 1.65 49 Mir* . . . 8.F. 17.5 30.5 43.0 55.5 8.0 8 31 42.00 5.65} 50 Bi-iwl ... 375 0.5 13.3 35.8 38.2 50.8 8 33 25.70 —4.02 —1 42.80 —1.631 92 OPPOSITION OF MARS, 1851-52, DKCBMBKR 81. 1K»1— Continued. ; i Objtct. Chmmnitrr l'n>e cTuan-H. Mean of wlit». Mlcr. Plant— Star. Bar. A. B. C. D. E» A «. A i. Air. Rev. „,... Rev. Inches. • • H Mm . . . S.F. 45.8 58.5 11.0 S3.5 36.3 895 11.09 -5.791 -,-."-.' 48.5 46.5 5« BwwJ ... 875 98.5 . . 53.8 16.6 89653.64 4.15J —1 43.6* —1.57 53 M 45 Man . . . P.F. BOM! ... 975 Man . . . 8.F: 45.8 98.8 11.0 58.5 93.5 54.9 36.2 9?.8 6.5 48.5 36.9 19.0 1.3 8 99 11.08 8 30 53.99 8 33 36.10 5.90 4.9*1 6.03i 1 49.91 1.611 Ther. alt. W.5 Bar. it-d. in 33" F. 47.877 58 Bessel ... 975 53.6 6.5 19.0 31.3 44.9 8 35 18.93 5.37 1 49.83 1.561 57 Ma« . . . SF. 6.3 18.6 31.3 43.7 56.7 8 37 31.33 1.91 58 tend ... 375 48. S l.C 14.9 96.8 39.5 8 39 14.96 5.45 1 43.94 1.46 • Man . . . B.F 36.8 48.3 l.fi 14.3 97.0 841 1.80 6.93 60 Bessel ... 275 . 19.5 33.3 44.« 57.5 9.6 8 49 44.70 5.50 1 49.90 1.43 81 Man . . . S.F. 95.0 37.6 50.3 3.6 15.3 8 44 50.16 7.00 • • Bessel .* . . 975 S0.7 33.3 45.8 58.3 8 46 33.23 5.58 1 43.06 1.49 83 Man . . . 8.F. 47.0 59.5 13.1 94.6 37.3 8 48 19.10 7.151 M Besttl ... 975 30.1 «.8 55.5 7.6 90.3 8 5055.29 —5.75 —1 43.19 -1.401 Remarks. Good image* and tolerably steady all nitlii. The d..rk line Imuiuling ihr north |>»lar lone i> not as distinct an on the night before latt, nor do I perceive the brownish-red portion on the »<>iitlita»t quarter ol Un1 planet. a Measures close. ' Measures oprn. Results. Mean 8. F I-. m. s. 7 44 30.61 m. i. Bfv. — 1 43.144 .... — 1.945 0 37.81 h m. Correction for chronometer at 7 44 . m. s. — I 97.«8 h. m. 45 . h. m. s. famiafotid. time 8. F 74353.93 0.04 lilll.MIU.lt *», 1 - , 1 . i Chronometer time of irni, -it. Planet — Har. Thermometers. Object. A. B. C. 1). B. A«. A*. Air. Wet. i a. s. s. a. a. h. in. s. Rev. m. s. Rev. Inchea. • • i Man . . ff. 34.5 37.9 48.6 9.3 14.8 6 33 48.68 - O.UI 97.858 60.0 53.5 • Brssel . . . VTS 96.0 . . 51.3 3.6 16.5 6 35 51.99 11.161 —8 1.54 + I0.95J Thcr. alt. • Man . 19.5 39.9 44.* 57.8 8.9 6 38 44. W 1.351 65'. 4 4 Bewel ... 975 . . • . 46.3 58.8 11.5 6 4046.99 11.75 9 1.81 in -MI Bnr '"I- 10-39' to3TF. M M « Man . . . B.F. S4.S 47.3 59.8 19.4 95.0 6 4959.80 1.87 • Bess«l ... 975 36.1 48.3 1.5 • • M.I 645 1.31 19.19 8 1.51 10.45 7 Man . . . B.F. 58.3 3.8 17.5 30.9 49.7 < 48 17.30 9.181 1 Bwri . . . 975 54.9 • • 31 6 44.6 6 50 19.30 —19.75 -8 9.00 + 10.561 AT SANTIAGO DE CHILE. 93 DECEMBER 33, 1851— Continued. si g c Chronometer time of transit. Micr. Planet — Star. Bar. Thermometers. 1 S, Object. A. B. C. D. E. A a. A i. Air. Wet. S 6 8. s. 8. a." ii. m. 8. RUT. m. s. Rev. Inches. 0 „ 2 9 Mare . . . S.F. 52.8 5.3 18.0 30.5 43.3 6 56 17.96 + 5.13 27.958 60.0 53.5 10 Bessel ... 275 54.2 7.5 20.0 32.6 45.1 6 58 19.88 — 5.50 —2 1.92 +10.63 Ther. att. 11 Mare . . . S.F. 14.5 36.8 39.5 52.0 4.6 7 0 39.48 + 4.76 65°. 4 12 Bessie! ... 375 17.0 29.6 42.1 54.5 7.0 7 2 42.04 — 5.92 9 2.56 10.68 Bar. r«'d. to 32° F. 27.860 13 Mare . . . S.F. 0.5 13.0 25.6 38.3 51.0 7 5 25.68 +4.33* 14 Bessel ... 275 3.2 15.6 38.2 40.8 53.5 7 7 28.26 — 6.32 2 3.58 10.65* 15 Mars . . S.F. 42.3 54.8 7.5 20.1 32.8 7 10 7.50 + 3.99 16 Bessel ... 275 44.3 9.5 32.0 34.6 7 12 9.40 — 6.70 9 1.90 10.69 17 Mare . . . S.F. 30.5 43.0 55.5 8.0 20.8 7 14 55.56 + 3.45 18 Bessel ... 375 32.5 45.3 57.8 10.3 23.0 7 16 57.76 — 7.39 2 /2.20 10.84 19 Mars . . . S.F. 48.0 0.5 13.3 25.6 38.4 7 19 13.16 + 3.15* 90 Bessel ... 275 50.3 3.0 15.6 38.1 40.5 7 21 15.50 — 7.59* 2 2.34 10.75 21 Mars . . . SF. 9.0 21.8 34.3 46.8 59.4 7 83 34.28 + 2.86 92 Bessel ... 275 11.7 24.5 37.0 49.5 2.0 7 35 36.94 — 7.96 2 2.68 10.82 S3 Mara . . . S.F. 41.5 54.0 6.5 31.7 728 6.56 + 2.51 M Bessel ... 275 43.8 58.8 9.0 21.5 34.9 7 30 9.06 — 8.31 2 3.50 10.82 25 Mars . . . P.P. 41.5 54.5 6.8 19.5 32.3 7 33 6.92 + 5.69 26 Betsel ... 275 44.3 57.0 9.5 32.0 34.5 7 35 9.46 — 5.22* 2 9.54 10.91* 27 Mara . . . B.F. 46.8 59.5 11.6 24.5 37.0 7 37 11.88 + 5.26 98 Bessel ... 275 49.7 2.0 14.9 27.5 40.0 7 39 14.82 — 5.65* 9 2.94 10.91* 99 Mara . . . B.F. 5.0 17.8 30.3 42.7 55.5 7 41 30.26 + 5.01 3U Brasel ... 375 7.7 90.5 33.0 45.5 58.2 7 43 32.98 — 6.09 3 9.72 11.03 31 Mars . . . B.F 39.5 53.3 4.6 17.2 30.0 7 46 4.72 + 4.65* 32 Besstl ... 275 49.5 55.9 7.5 20.3 33.8 7 48 7.04 — 6.37* 9 9.92 11.03 33 Mara . . . S.F. 53.3 4.6 17.3 99.8 42.4 7 50 17.28 + 4.44 34 Bessel ... 275 54.6 7.5 30.1 32.6 45.0 7 52 19.96 — 6.65 2 3.6H 11.09 35 Mara ... S.F 29.3 41.6 54.3 6.6 •fj 8 0 54.20 + 3.30 36 Bessel ... 975 32.0 44.5 57.1 9.9 82.5 8 3 57.20 -7.88* 2 3.00 11.18* 37 Man . . . S.F. 4.5 17.0 29.5 43.3 54.7 8 7 29.58 + 3.74 38 Bessel ... 275 7.5 90.3 33.0 45.1 57.8 8 9 32.74 — 8.48* 2 3.16 11.22* 39 Mars . . . S.F. 13.8 35.3 38.0 50.5 3.0 8 II 37.92 + 9.61* 40 Bessel ... 875 15.7 9H.S 41.0 53.5 6.0 8 13 40.94 — 8.63 3 3.09 11.34* 41 Mars . . . SF 14.3 36.8 39.3 4.6 8 15 39.38 + 9.55 42 B.-ssel . . . 27J 17.5 30.9 42.7 55.3 7.6 8 17 42.64 — 8.79 9 3.36 11.34 43 Mar* . . . B.F. 50.8 3.5 16.0 28.6 41.3 8 20 16.04 + 4.77* 44 Bessel ... 975 54.5 7.0 19.7 32.3 44.9 8 92 19.68 — 6.59 2 3.64 11.38* a Mars . . . S.F. 43.3 55.8 8.3 20.8 33.5 8 26 8.32 + 4.43 46 Bessel ... 275 46.5 59.5 H.O 24.5 37.0 8 28 11.90 — 6.96 2 3.58 11.39 47 Mura . . . S.F. 14.6 27.2 39.6 5-2.'! 4.9 8 30 39.70 + 4.37 48 Bessel ... 275 17.9 30.6 43.3 55.8 8.3 8 32 43.18 — 7.10 3 3.48 11.47 49 a Mars . . . S.F. 13.9 26.5 39.0 51.5 4.0 8 34 38.98 +4.26 97.950 50 Bessel . . . ST.5 17.5 30.3 4-J.li 55.0 7.8 8 38 42.74 —7. SI 3 3.76 11.47 Ther. att. 91 a Mara . . . S F 14.8 27.3 40.0 52.5 4.6 K 3.J 39.81 +4.19 61. °8 41 Bessel ... 275 19.5 U.I 43.7 56.2 8.8 8 40 43.86 —7.32 3 4.02 11.51 Bar. red. to 32° F. 27.861 53 Mara . . . S F. 13.5 96.3 38.5 51.0 3.8 8 42 38. CO +4.55 54 Bessel . . . 275 17.0 99.8 42.3 5l.f, 7.5 8 44 42.24 —7.35 —2 3.64 +11.60 94 OPPOSITION OF MABS, 1851-52, lli:< KMIIKR -«H. 1*31— Contlnurd. Remarks. An extremely rtne night, nVAnition superb, and motion steady. The line bounding the urn.- i- . u,|. uily darkest near th«- »••-!• -rn limb, Mid ihe inn. itself apparently smaller than when lirr-l seen. There Is no star in the place given in the K.uhemms. and an error of a luinuli- in tin- ilf.-lination was probably made in Brssel, or in the Washington obserratioas. • Wary motion in thc«e two observation*. Mean 8. P h. in. ». 73!) 13.53 h. in. Correction for chronometer at 7 39 . . . b. m. A f at 7 40 Ml - — 1 29.96 in -. Rev. -9 9.7JO .... +10.975 . . Santiago sid. lime 8. F. . 0.18 h in. >. 7 37 43. 55 DECEMBER 23, 1851. Cloudy. DECEMBER »*, I - • I . g Chronometer time at transit. Planet— Star. Thermometen. 1 'lean of trirm Ml'T Bar. i: Object. A. B. C. D. E. A*. A I. Air. Wet. <£ Rev K£V. 1 Ml In ~ • • 4 incnCH. 1 Mara . . . U.K. U.O 96.8 30.9 51.6 4.3 7 95 39.18 -9.97 38.070 57.7 53.3 2 25.5 7 36 95.50 1.37 —46.32 —1.70 HUT . all. 3 Man . . . S.P. 6.6 19.3 31.3 . . . 7 38 31.61 3.15 64VO 4 5.5 18.3 7 39 18.15 1.48 46.54 1.67 Bar. r. il. to 33* K. 27.975 S Man . . . 8 f. 94.8 37.3 49.8 . . . . 7 3-2 49.81 3.37 a Washington . . . 11.0 34.3 36.9 • • • • 7 33 36.41 1.75 46.60 1.63 7 Man . . . S.F. 37.0 49.5 9.3 . , . 7 36 9.91 3.69 8 Wa-hingtou . . . • • 36.0 48.5 • • 7 36 48.50 1.99 46.39 1.63 9 Man . . . S.F. 6.3 18.8 31.3 . , . 7 38 31.38 3.64 10 Washington . . . 59.5 5.3 17.6 7 39 17.71 9.U9 46.31 1.55 11 Man . . . S.F. 96.8 39.5 59.0 . . . 7 40 .'.Mil 3.84* n Washington . . . 13.5 96.3 39.0 • • 7 41 38.85 3.96) 46.84 1.58 13 Mara . . . S.K. 15.8 98.5 41.0 . , . 7 49 41.01 3.96 14 Wuhinfion . . . 9.5 15.3 98.0 • • • • 7 4397.85 3.46| 46.84 1.49| IS Man . . . 8.F. 58.5 11.0 93.5 . . . 7 4523.58 4.119 It Washington . . . • • 57.6 10.0 • • 7 46 10.05 9.65 46.47 1.44 17 Man . . . S.F. 50.8 3.5 15.6 . . . 7 49 1S.88 4.97 IB Washington . . . 37.5 50.9 9.5 • • 7 50 9.68 I.M 46 80 1.47 19 Man . . . 8.F. 11.:, 94.0 37.0 . . , 7 59 36.75 4.45 90 Washington . . . 58.3 U.S 93.6 • • 7 53 93 88 3.04 46.87 1.41 tl Man . . . 8.F. 44.0 56.6 9.9 t f f . 756 9.18 4.65 91 Washington . . . 30.5 43.5 • • 7 55 55.91 3.9* 46.73 1.43 93 Mara . . . 8.P 58.4 11.0 93.5 m , . 7 57 93.55 4.75 M 58. 0 10.6 -.. 7 58 10.55 3.34 47.00 1.41 • Man . . . 8.F. 34.9 46.8 SV.9 7 59 »0.3I 4.9BI M Washington . . . 33.6 • • . . • 8 0 46.CV 3.56 47.38 1.34J 97 . Mara . . 8.F. 9D.9 ».« 45.4 . 8 -J 4.'..:w 5.97 M Washington . . . -<.l 90.0 39.6 . _ _ 8 3 33. 51 -3.98 —47.13 -1.99 AT SANTIAGO DE CHILE. 95 DECEMBER -J 1. 1851— Continued. i 1 Chronometer time of transit. Micr. Planet — Star. Bar. Thermometers. [ Object. A. B. C. D. E. A a. AJ. Air. Wet. h C 4 8. 8. 8. 8. a.* h. 111. s. Rev. 8. Rev. Inches. • • 99 Mara . . . S.F. 9.3 22.0 34.5 . 8 5 34.51 —5.39 28.070 57.7 53.3 30 Washington . . . 9.2 91.8 . . . . 8 6 21.75 4.08 —47.94 —1.31 Ther. att 31 Mara . . . S.F. 15.3 28.0 40.7 f f , . 8 8 40.56 5.44 64°. 0 33 Washington . . . . . 15.0 27.8 . . . . 8 9 27.65 4.21* 47.07 1.22J Bar. red. to 32" F. 27.975 33 Mars . . . S.F. 8.0 20.5 33.2 8 11 33.15 5.60 34 Washington . . . 55.5 7.5 20.5 • • • • 8 12 -20.4-3 4.34 47.27 1.26 35 Mars . . . S.F. 37.0 49.8 , . . S 14 2.29 5.65i 36 37 0 8 14 49.54 4.45 47.25 i aoA 37 Mara . . . 8F. 3S.5 0.5 8 17 0.64 5.70J i.«\>f 38 Washington . . . 35.5 48.0 • • 8 17 48.00 4.53 <<«7.36 I.NI 3D Mara . . . S.F. 4.6 16.5 29.0 p 8 19 29.28 5.76 40 Washington . . . 51.6 4.2 16.8 • • • • 8 20 16.78 4.62 47.50 1.14 41 Mars . . . S.F. 44.0 56.7 9.2 . 8 29 9.21 6.-12 43 Washington . . . 41.3 56.5 8 22 56.65 5.11 47.44 1.11 a Mara ... S.F. 30.0 49.5 55.0 . 8 24 55.08 6.35 44 Washington . . . 99.8 42.5 • • 8 35 42.40 5.9H 47.32 i.i"; • Mam . . . S.F. 9.5 2J.3 34.6 . . . 8 96 34.71 6. 474 • Washington . . . • • 9.9 23.3 • • • • 89722.35 5.41, 47.64 1.06 47 Mart . . . S.F. 3.2 15.8 28.3 . . 8 3028.35 6.52 48 Washington . . . 51.0 3.0 16.0 • • • • 8 31 15.92 5.47* 47.47 1.041 49 Mara . . . S.F. 33.8 46.3 58.5 t t 8 3) 58.78 6.65 50 Washington . . . 91.5 34.0 46.8 • • • • 8 33 46.68 5.571 47.90 1.07) 61 Mare . . . S.F. 59.5 12.0 8 34 12.00 6.72 • Washington . . . • • 47.3 59.3 • • • • 83559.55 5.66 47.55 1.06 53 Mara . , . S.F. . , 11.3 23.5 . 8 38 23.65 6.73 54 Washington . • 46.5 59.0 11.6 • • 8 39 11.61 5.70 47.96 1.03 55 Mara . . . B.F. 54.8 7.5 90. 0 . , g 8 41 90.01 6.68 56 Washington . . . 42. 6 55.5 7.6 8 49 7.81 5.95 47.80 0.93 57 Mara . . . S.F. 5.S 18.8 30.5 . . 84330.95 6.981 58 Washington . . . 53.6 6.3 18.8 • • 8 44 18.89 6.08 47.87 0.90| 59 Mara . . . S.F. 29.0 41.5 54.3 . . 8 45 54.18 7.01 60 Washington . . . 17..'! 30.0 43.5 • • • •. 8 46 49.51 6.19 48.33 0.89 61 Mara . . . S.F. 34.7 47.5 0.2 . 8 48 0.05 7.05 03 Washington . . . • • 35.5 48.2 • • 8 48 48.10 6.15 48.05 0.90 63 Man . . . S.F. 52.3 4.5 17.5 . . 8 50 17.35 7.01J 27.970 54.0 52.5 64 Washington . . . 40.5 53.0 5.5 • • • • 8 51 5.58 —8.91 mM — 0.80J Remarks. Definition of planet sharp ; but its motion wavy throughout. The comparing star so very dim that it would bear only the least possible light, which rendered the contacts doubtful, and only second rate. Results. h. m. 8. s. Rev. ' H Mean S. F . . . . 8 9 27 67 47 234 1 258 — 0 24 52 h. m. m. 8. h. m. 8. Correction for chronometer at 8 9 ... - 1 36.17 Santiago sid. time S. F 8 7 51 .50 h. m. « A p al H i:< K'liu.H :'.. I---.I. : Mirr : o h m •. i . Her [M H • £. i i 3 1 1 | Man . . . 8.F. Washington . . . Man . . . 8 F. Wuhingion . . . Man . . . 8.F. 38.0 45.0 49.0 6.5 40.5 56.0 l.t 53.8 10.5 14.5 31.8 33.0 5.8 97.0 39.8 7 94 53.17 7 96 10.41 7 41 14.38 7 4331.75 7 50 32.96 7 51 51 46 + 3.80 • + 9.85 —10.65 + 9.34 11 97) -1 17.84 1 17.37 1 18 SO +13.15 13.50 13 611 98.019 Cher, an 65- .6 Bar red. to 31 K. 97.919 57.5 7 Mara . . . 8.F. 90.3 7 53 J0.26 a » 10 Wuhingtoo . . . Man . . . 8.F. • • • 38.3 15.5 33.9 • • . . 7 54 3C.26 7 56 15.46 7 57 33.16 —11.41 + 9.061 —11.6-2 1 18.00 1 17.70 13.69 13.68| 11 Man . . . 8.F. 30.5 7 59 30.46 + 6.75 11 Washington . . . 48.5 8 U 48.46 — S.'JOJ 1 18.00 13.651 13 Man . 8 F 94 6 8 9 94 56 . 1 I M Wa-lmiptnn 43.0 8 3 42 96 — 7.24 1 18.40 13.7SJ IS Man . . . 8.F. 11 5 8 5 11 46 + 6.35 IS Washington . . . 99.5 8 6 99.46 — 7.37 1 18.00 13.79 17 Mara . . . 8.F. 48-3 8 7 48 96 + 6.371 18 6.5 8 8 6.46 — 7.63 1 18.90 13.891 19 90 Man . . 8.F. Washington . . . • • 36.5 54. C • • • • 8 11 36.46 8 19 54.56 + «.92 — 7.571 1 18.10 13.78| U Man . . B.F. 15.5 8 14 15.46 + 6.16 •-•-• YVathtnfton . . . 34.0 8 15 33.96 — 7.69 1 18.50 13.85 • Man . . . B.F. 14.5 8 17 14.46 + 6-07t .; Wellington . . . 33.0 8 18 33.98 — 7.83 1 18.50 13.90| • Man . . . si 6.5 8 90 6.46 + 5.99 • Washington . . . 95.0 8 91 94.96 — 7.88 1 18.50 13.67 V •-•- Man . . . B.F. • • • • 53.9 11.5 • • B 99 53.16 8 94 11.46 + 5.81 — 8.10J 1 18.30 13.9IJ •.•• Man . . . B.F i | 8 96 41.96 + 5.71 30 0.8 8 98 0.76 — 8.99 1 18.80 14.00 31 Man . . . B.F. 98.8 - - i . + 5.67 38 45.5 8 30 45.46 — 8.331 1 18.70 14.001 33 Man . . . B.F. 9.5 8 39 9.46 + 5.58 3lo 91.0 8 33 90.96 — 8.49 1 18.50 14.00 35 36 Man . . . B.F. • • • • 10.5 50.0 • • • • 835 30.46 8 36 49.96 + 5.57 — 8.48 1 19.50 14.05 37 Mtn . . . 8.P. 33.0 8 3939.96 +5.49 38 WftahJnfton . . . 59.0 8 4051.96 -8.59 1 19.00 14.08 » 40 Man . . . B.P. • • • • 4«.0 6.0 • • • • 841 45.96 8 43 4.96 +S.35J —8.69 —1 19.00 +14.041 Remark*. Definition good, but motion wavy ai hut nlgbi. There bring no itar in the place given In the Epheneris, and th« nonreM being that observed last •Ight, coupattMMM were made with it. They ate not considered entirely »annfacioi) , far Uie ume reason*. Oa recumputaiiou next da> an error was ulalaed IB DM calculated declination amounting to 90>. • R.-rorHod 31s. at win C. Mean S. F. AT SANTIAGO DE CHILE. DECEMBER £5, 1851— Continued. Results. h. in. s. 8 11 36.68 m. s. Rev. — 1 18.390 . . . +13.807 . . h. ui. m. s. Correction for chronometer at 8 13 , . . —139.43 Santiago sid. lime 8. F. / // 4 29.10 h. nt. a. 8 9 57.45 !i. in. A pat 8 Jl 0.22 DECEMBER 86, IV. 1 . No. for reference. Object. Chronometer time of transit. 1 Wean of wires. Micr. Planet— Star. Bar. lermouieters. A. B. C. D. B. A a. Ad. Air. Wet. a. B. 8. a. a. b. m. >. Rev. lllyfl. Rev. Inches. • 0 1 Man . . S.F. . 34.6 47.2 59.8 f t 6 50 47.18 -7.331 27.974 66.2 55.8 3 Rumkrr . . 2800 53.6 6.4 19.0 . . 6 52 6.32 +1.65 — 1 19.14 -s.9ei 3 4 6 Mara . . . S.F. Kuinker . . 3800 Man . . . B.F. • • 37.9 46.6 47.9 40.5 59.3 0.3 53.0 12.0 13.8 • • 6 54 40.45 6 55 59.98 6 58 0.33 -7.63 + 1.361 —7.89 1 18.83 9.011 Ther. nit. 68°. 7 Bur. rod. t" 32° F. 27.865 8 Rumker . . 3800 • • 6.8 19.5 32.0 • • 6 59 19.43 +1 01 1 19.10 8.90 7 Mara . . . B.F. , . 47.3 0.0 19.5 , . 7 3 59.93 -3.80 8 Rumker . . 3800 • • 6.8 19.5 39.0 • • 7 4 19.43 +6.07 1 19.50 8.87 1 Mara . . . S.F. t f 46.5 59.0 11.6 f f 7 5 59.02 —3.04 10 Kuinker . . 3800 • • 5.8 18.5 31.0 • • 7 7 18.43 +5.84 1 19.40 8.88 11 Mara . . . S.F. 3.3 15.0 27.5 , . 7 9 14.93 —3.25 M Rumker . . 3800 • • 31.9 34.3 46.7 • • 7 10 34.98 +5.601 1 19.36 8.851 13 Man . . . S.F. . , 16.8 38.8 41.3 . . 7 12 28.75 —3.46 14 Rumker . . 2t(K) • • 35.5 48.9 0.6 • • 7 13 48.08 +5.31 1 19.33 8.77 15 Mare . . . S.F. t 4.0 16.7 39.3 f f 7 16 16. C2 —3.73 16 Rumker . . 3800 • • 33.6 36.0 48.5 • • 7 17 36.02 +5.03 1 19.40 8.76 17 Mara . . . B.F. t m 57.9 9.7 33.3 t f 7 19 9.79 —3.931 18 Rumker . . 3800 17.0 39.5 43.0 • • 7 90 39.48 +4.77 1 19.78 6.701 19 Mara . . . B.F. . . 57.8 10.3 99.9 , f 7 93 10.33 —3.69 90 Rumker . . 3800 • • 17.3 39.9 43.5 793 39.88 +4.75 1 19.56 8.64 SI Man . . . H.F. t m 58.3 10.8 33.3 m f 7 95 10.75 —4.91 S3 Rumker . . 3800 18.0 30.5 43.0 • • 7 28 30.48 +4.41 1 19.73 8.63 23 Mara . . . e.f. t . 59.3 11.6 94.2 . . 7 98 11.65 —4.19 24o Rumker . . 3600 • • 18.6 31.3 43.8 • • 7 29 31.32 +4.421 1 19.57 8.611 35 Man . . . B.F. t 11.3 33.% 36.3 . 7 33 93.73 -4.70 9C Kuinker . . S800 31.3 43.6 56.0 7 34 43.58 +3.89 1 19.86 8.59 37 Man . . . B.F. 58. 8 11.5 34.0 . . 7 36 11.43 —4.871 38 Rumker . . 3800 • • 18.8 31.4 44.0 • • 7 37 31.38 +3.63 1 19.96 S.fOt 29 Man . . . P.F 1.1 13.8 96.3 7 39 13.72 —5.011 30 Rumker . . 3800 21.0 33.6 46.3 • • 7 40 33.69 +3.45 1 19.90 8.461 31 Mara ... S.F , 6.8 19.4 31.8 7 42 19.39 —5.331 33 Rumker . . 3800 27.0 59.0 • • 7 43 39.50 -r3.2Ul 1 30.18 8.44 33* Mara . . . S.F 16.0 38.5 41.5 t , 7 45 28.65 —5.38 31 Rumker . . 3800 36.4 48.5 1.5 7 46 48.78 4-3.011 1 20.13 8.391 35 Man ... S.F t t 33.4 45.0 57.5 i ( 7 49 44.95 -5.49 38 Rumker . . 3800 • • 53.6 5.3 17.8 7 50 5.22 +9.83 —1 20.37 —8.32 13 98 OPPOSITION OF MASS, 1851-52, DKCKMMI It •;.;. i-'.l < ..i.ni.i.,,1. No. for rrfrr. Object. Chronoaeler lime of tr.m»ct. Yfranofwlm. Mlcr. IManri— Star. Bar. riirriiioroetrr* A. B. C. D. E. A* AJ. Air. Rev. m. «. Rer. Inche.. • • 37 Mara . . . S.F. . 49.9 S5.S 8.0 . 751 55.45 -5.63 97.968 60.0 SB Bunker . . MOO . . 3.4 15.6 96.4 . . 7 53 15.78 +3.67 -1 90.33 -8.30 at 40 41 Man . . . 8 P. Rumker . . 9800 Man . . . 8 P. • • 30.* SO. 7 80.7 48.8 3.3 33.3 SS.3 15.6 15.8 • • 7 55 49.75 767 3.15 75833.25 —5.76 +9.53 —5.86 1 90.40 8.98 Tb*r. all. 66' .0 Bar red. f.33* P 97.867 4) Rumker . . 9800 • • 41.6 54.3 6.6 • • 75954.13 +9.38 1 90.87 8.89 43 Man . . . 8.P. . 18.9 31.5 44.1 . 8 1 31.48 —5.90 44 Rumker . . 9*00 • • 39.5 M.I 4.6 8 9 53.05 +9.91 1 90.5} 8.90 45 Man . . . 8. P. . . 19.5 33.3 f f . 8 4 33.16 ' —6.03 46 Ruinker . . 3800 . . 40.5 53.0 S.5 • • 8 5 53.98 +9.11 ! •.• 8.13 47 Man . . . B.P. . . 4.5 17.5 30.0 f t 8 7 17.31 —6.15 48 Rumker . . MOO . . 38.0 36. 5 51.0 . . 8 8 38.48 + 1.98 1 91.16 8.11 49c Man . . . 8.P. _ 54.8 6.5 . 8 94 54.05 —5.09 SO Rumker . . 2800 . . 8.8 15.5 87.8 • • 8 96 15.35 +9.961 1 81.30 8.001 51 Mar. . . . B.F. . . 38.5 SI .8 3.6 8 97 51.08 —5.08 . W Rumker . . 8800 . . 59.7 13.5 31.8 • • 8 39 13.33 +9.8.11 1 91.94 7.911 S3 Man . . . 8.F. . 32.8 45.3 S7.6 8 30 45.33 —5.11 M Rumker . . 8800 • • S4.0 6.5 19.1 • • 833 6.53 +9.811 1 31.30 7.931 ss Man . . . 8 F . , 15.5 88.0 40.6 8 33 38. 09 —5.151 58 Rumker . . 3800 • • 36.8 49.4 8.0 • • 8 34 49.38 +9.70 1 91.36 7.BS1 S7 Man . . . 8.P. 55.5 8.0 90.5 8 36 7.98 —5.16 58 Rumker . . 2800 • • 17.0 39.6 43.0 8 37 99.53 +8.69» 1 31.54 7.781 59 Man . . . 8.P. t 33.8 45.6 58.3 t 4 8 38 45.53 —5.19 80 Rumker . . 8800 • • 54.6 7.3 19.9 • - 8 40 7.35 +9.6SJ 1 91.73 7.B41 81 Man . . . 8.P. . . 10.5 93.0 35.5 t . 8 41 99.98 —5.98 83 Rumker . . 8600 34.3 44.8 57.3 • • 8 49 44.73 +9.50 1.91.74 7.78 63 Man . . . 8.P. 53.0 5.6 19.0 844 5.53 —5.34 64 Rumker . . 9000 • • 14.5 87.0 39.7 • • 8 45 97.05 +9.511 —1 31.53 -7.751 • Recorded 44. 8i. at wire D. t Mt.uure open. Remarks. Fine night ; definition good, and measure* satisfactory. c Tiimming lump.*. Retultt. MeanS. P. . Mean 8. P. . Twenty- four tnniiu . La>t right trinMU . . h. m. •. . 7 30 30.16 . 8 34 40.05 m. «. Rev. — 1 19.880 .... —8.565 . — 1 91.467 .... —7.859 . / H . . . =946.93 ... =9 33.17 Correction for Correction for b. m. A* at 7 £9 . h. m. chronometer at 7 X . chronometer at 8 34 m. p. . — 1 43 98 . —1 43.14 . 0.15 h. m. «. 7 38 47 18 . . . 8 33 56.91 h. m. A » at 8 33 . 0.19 AT SANTIAGO DE CHILE. 99 DECEMBER 37, 1S51. ! Ill .11 »8, 1891. j Chronometer time of transit. Planet— Star. Thermometers. | Object. A. B. c. D. E. A a. A A Air. Wet. I i 1 46.0 7 19 45 <6 +3 56 •'-• 'i',l 54.7 50.4 9 Man . . . 8.F. . . . 34.5 . . . . 7 13 94.46 —9.63 +38.50 —6.19 Ther. Ml. 3 Basel ... 975 . . 54.5 . . . 7 14 51.46 +3.96 63- .0 4 Mars ...HP 3) 0 7 15 31.96 -1.93 37.50 5.19 11 ir ml. til W r. 27.959 5 Bess«l ... 975 . . . . 59.5 . . . . 7 16 59.46 +3.09 6 Mara . . . 8.F. • • • • 30.0 • • • - 7 17 37.96 — S.89J SB. 50 5.9*1 7 BesMl ... 975 . . . . 15.3 . . . . 7 19 15.96 +9.85 • 6 Man . . . N.P. 53.3 7 19 53 Stf 3 30 38 00 5 05 9 Bevel ... 975 39.0 . . 791 31.96 +9.69 10 a Man . . . 8.F. 6.8 7 92 6 76 — 3 95 34 80 5 91 11 Bea««l ... 975 44.0 79343.96 +9.551 19 Man . N P. 91 5 7 94 91 46 2 54 37 50 S 094 13 Beasel . . . 975 11.0 797 10.96 +9.33, 14 Man . . . 8.F. • • • • 49.3 • • • • 7 97 49.36 —3.58 38.30 5.88( 15 Base) ... 975 . , . . 17.9 . 799 17.86 +9.14 1C Man . . . N P. 55.3 7 99 55 96 9 81 37 40 4 95 17 BeMd ... 975 34.0 7 31 33.96 +9.09 IS Mars . . . 8.F. • • 13.9 • • 7 11 13.16 —3.80 38.90 5.89 11 Bern) ... 975 '. , 54.9 f f t t 7 33 51.16 +I.87J M Man . . . N.P. • • • • 31.0 • • 7 34 30.86 —3.03) ' 36.80 4.91 n Bern) ... 975 • • . 98.0 7 3897.96 +1.46J a Man . . . B.F. 6.3 739 6.96 —«. lit +38.30 —5.58 AT SANTIAGO DE CHILE. 101 DECEMBER 38, 1851— Continued. No for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A A Air. Wet. s. 8. fl. s. B. h. m. s. Ifev. s. Rev. Inches. • • 23 24 25 26 27 28 29 :-..i 31 33 33 34 35 36 37 38 39 40 41 42 B 44 45 •I., 47 48 49 50 51 52 53 64 55 58 SI X 59 60 61 63 63 64 65 66 67 68 Bessel . . . 275 Mara . N P +1.41 —3.41 +1.36 —4.29 +1.3.H —3.56 +1.121 —4.49 +3.36 -1.43 +3.16 —2.40 +3.06 —1.591 +2.93 —3.54 +383J -1.791 +2.69 —3.71 +2.64 —1.92 -•- t-m —2.81 +3.50 — 3.1)0 +3.45 —2.92 +2.37 —2.07 +3.35 —3.00 +2.25 —2.23 +2.14 —3.15 +2.09 —2.271 +1.92, —3.23 +1.85 -2.4J +1.81 —3.33 +1.77 —2.45 +36.70 37.80 36.80 37.90 3f6o 37.60 36.50 37.90 36.30 37.30 36.00 37.00 36.00 37.40 35.70 37.40 36.00 36.80 35.60 36.20 35.40 36.60 +35.40 —4.82 5.65 4. fi; 5.611 4.69 5.56 4.651 5.47 4.62 5.40 4.56 5.39 4.50 5.37 4.44 5.35 4.47 5.29 4.36J 5.151 4.27 5.14 —4.22 28.051 Ther. ntt. 63°. 0 Dar. red. to 32° F. 27.959 54.7 50.4 31.8 7 41 31.76 7 42 40.16 7 43 17.96 7 44 40.96 7 45 17.76 7 47 30.36 1 48 8.S6 7 49 38.26 7 50 14.56 7 51 41.56 7 52 19.16 7 53 39.46 7 54 15.96 75622.36 7 57 0.28 7 58 17.96 7 58 54.36 8 0 12.96 8 0 50. 2fi 8 2 7.08 8 2 43.06 8 3 48.96 8 4 25.96 8 5 30.36 8 556.36 8 6 56.98 8 7 34.36 8 8 58.66 8 9 34.36 B 10 38.06 8 11 15.46 8 13 57.46 8 14 33.46 8 IS 38.66 8 16 15.46 8 17 24.36 8 17 59.96 8 31 9.46 8 21 45.66 8 23 49.36 8 33 34.76 8 24 30.36 8 35 6.96 8 38 9.96 8 38 45.36 Bessel ... 275 Mars . . . 8 F. Bessd ... 275 Mara . . . N.P. Bessel ... 275 Mars ... 8 P. • • • • 4(1.2 18.0 41.0 17.8 30.4 8.3 • • Bessel ... 375 Mara . . . N.P. Bessel ... 375 Mais . . . 8. P. 38.3 14.6 41.6 19.3 • '• Bemel ... 375 Mara . . N P. 39 5 16 0 Bessel ... 275 Mara . . . 8 F. • • .. . 33.4 0.3 • • Kernel ... 975 Mara . . . N.P. Betwl ... 875 Mara . . . 8.F. • • • 18.0 54.3 13.0 50.3 • • • • Bessel ... 375 Mars . . . N P. • • • • 7.1 43 1 • • • • Bessel . . .275 Mara . . . 8.P. 49 0 36.0 Berael ... 373 Mare . . . N.P. • • • • 20.3 56 3 • • • • Bessel ... 375 Man . . . 8.F. • • • • 57.0 34.4 • • Bexel ... 375 Mara . . . N.P. • • • • 58.7 34 4 • • • • Berael ... 375 Man . . . 8.F. Beisel ... 275 Mare . . . N.P. • • • • 38.1 15.5 57.5 33.5 • • • • Bessel ... 375 Man . . . 8.F. • • • • 38.7 15.5 • • • • Bessel ... 375 Mara . . . N.P. 24.4 0.0 • • • • Be»el ... 375 Mare . . . 8.P. It. — 1 ... 375 Mara . . . N.H. Bessul ... 275 Mars . . . 8.F. lleiiel ... 375 Mars . . . N.P. • • • • 9.5 45.7 49.4 34.8 30.4 7.0 10.0 45.4 • • • • 102 OPPOSITION OF MARS, 1851-52, DECEMBER »8, IM1— ConUnnrd. 1 2 0||Mt Chronornrtrr lime of lran.il. HHB ••• Bta - Mier. PUnn— Star. Bar. Tbenaomeien. A. B. 0. U. E. A«. A i. Air. W., Rev. •. Rev. iMta • • m it BoMl . . . 975 Man . . . 8.F. 897 50.38 89898.78 +1.73 —3.35J +36.40 -s.oe. 98.051 54.7 50.4 . . . . 96.8 . , . 71 n a 74 75 M 77 71 7> B«M| . . . 875 - - 94.0 89923.98 89958.96 8 31 49.96 8 32 19.96 8 33 4.96 8 33 39.66 834 97.98 835 4.46 835 54.96 +1.71 -9.55 +1.65J -3.371 +1.60, — 3.54J +1.60 —3.39 +1.57 35.00 36.30 34.70 36.50 4.98 5.03 4.15 4.99 Thrr. alt. 63'. 0 Bar. red. to W F. 47.959 Man . . . N.P. Be«ael ... 975 Man 8 F • • • • 59.0 43 0 • • • • 19.3 Bowl ... 275 Man . . N.P. • • 5.0 39.7 • • • • Bern! ... 975 Man . . . 8 F. • • 28.0 4.5 BwwH . . . 975 55.0 80 Man . . . N.P. . . • • 30.0 • • • • 8 36 99.96 —2.561 35.00 4.l3i 81 Bawl ... 975 I .. 14.5 , . , . 8 37 14.46 +1.58 m Man . . . 8.F. . . • • 50.5 • • • • 8 37 50.46 —3.411 36.00 4.991 a 84 BtMl ... 975 Man . . N.P. • • • • 40.7 91.6 • • 8 38 46.66 83991.56 +1.55 —2.53 +34.90 -4.08 Remarks. iharp and steady, and measures satisfactory. The Hue bounding the white zone not 10 dark as when last observed. Dark patches visible preceding quadrant. a Evidently iu error, and therefore rejected. Mean 8. F. . . Twenty transit! • Resultt. h. m. s. . 8 0 .15.54 . 8 0 43 13 m. i. Rev. + 37.345 .... —5.447 + 36 167 4 583 / n . . . . =146.18 1 29.33 h. m. Correction for chronometer at 8 1 . . m. •. . — 1 50.90 h. m. a. . . . 7 58 45 34 Correction for chronometer at 8 1 . . . — 1 50.90 . . . . 7 58 51.93 .... 6.58 A P. P. limb* in A. R. reduced to are . Variation of A. R In 7f. . . . n . . 17.67 0 03 A N. S. limb* micr. in rev. . . it . . . 0.864 = 16.84 0 03 Observed P. F. diameter . . 17 64 9 90 h. m. A.at7S8 // . 0.09 Observed N. 8. diameter . . h. m. A X at 7 58 . . . . 14.63 n 0.07 DECEMBER »9, i - . i . j Object. Chronometer time of transit. Me*n of wires. Mlcr. Planet— Star. Bar. Thermometers. A. B. C. D. E. Ac. 4 A Air. Wet. a. a. a. I. - h. m. >. Rev. m. •. Rev. Inches. • • 9 3 4 Man . . . M.P. Rwnker . . 9799 Man . . . BF. Ranker . . 9799 • • • 10.1 99.5 1.0 18.8 93.0 48. 1 13.5 31.5 35.5 54.5 96.1 44.5 • • 6 47 33.99 « 50 43.03 6 53 13.59 65531.58 +3.7IJ 9.65 9.88 +2.43 -3 19.10 + 1.08J +0.45 28.068 Ther. alt. 63'. 0 Bar. red. 10 31' F. tOMt 54.3 53.3 AT SANTIAGO DE CHILE. 103 DECEMBER 29, 1851— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. &A Air. Wet. s. 8. 8. t 8. 8. h. ni. s. Rev. m. s. Rev. Inches. 0 5 Mars . . . N.P. f 96.0 8.5 Sl.O . 6 57 8.48 +3.92 28.080 54.5 53.3 6 Rumker . . 9799 15.5 28.0 40.5 . 7 0 27.98 2.64 —3 19.50 +1.28 7 8 9 Mars . . . 8.F. Ruiuker . . 2789 Mars . . . N.P. • • 44.0 2.6 35.2 56.5 15.6 47.8 9.0 28.0 0.5 « 7 1 56.48 7 5 15.38 7 6 47.82 3.04 3.43 3.60 3 18.90 0.61 Thrr. att. £2°. 5 Bar. red. to 3-2° F. 27.990 10 Ruiuker . . 2799 • • 55.3 7.8 20.5 • • 7 10 7.85 2.08 3 20.03 1.52 11 Mar. . . . S.F. . 4.5 17.2 29.8 , 7 12 17.15 2.42! 13 Rumker . . 2799 23.7 36.3 48.8 • • 7 15 36.25__ 1.56i 3 19.10 0.86 13 a Mars . . . N.P. , . 6.0 18.5 31.0 . . 7 17 18.48 2.83 / 14 Rumker . . 2799 • • 28.2 38.8 51.2 • • 7 20 38.72 1.25 320.54 1.57 15 Mars . . . 8.P. . . 20.4 33.0 45.5 . 7 22 33.95 1.84 16 Rumker . . 2799 • • 40.0 52.5 5.2 • • 7 25 52.55 0.95 3 19.60 0.89 17 Mam . . . N.P. . . 14.3 26. 8 39.3 . . 7 27 26.78 s.se. IS Rumker . . 2799 • • 35.0 47.5 0.0 • • 7 30 47.48 0.61 320.70 1.771 19 Man . . . S.F. , r 14.0 26.8 39.3 . . 7 34 26.68 3.71 SO Rumker . . 2799 • • 34.0 46.6 59.2 7 37 46.58 2.70 3 19.90 1.01 21 Mars . . . N.P. , , 15.3 27.8 40.3 . f 7 46 27.78 3.6fJ 22 Rumker . . 2799 • • 36.5 49.0 1.5 • • 7 49 48.98 1.67 3 21.20 2.01} 93 Mars . . . 8.F. . . 16.0 28.5 41.0 t f 7 51 23.48 2.70 94 Rumker . . 2799 30.2 48.0 1.4 • • 7 54 48.78 1.4:t; 3 20.30 1.96i 25 Mars . . . N.P. f 12.0 24.6 37.3 . 7 5824.58 3.34 38 Rumker . . 2799 • • 33.5 46.5 58.8 • • 7 59 46.25 1.35 331.67 3.09 27 Mars . . . S.F. . 5.8 18.3 30.9 . 8 1 18.33 2.37 S8 Rumker . . 2799 • • 26.6 39.2 51.6 • • 8 4 39.12 l.OOj 320.80 1.364 29 Man . . . N.P. . 14.2 26.6 39.4 8 6 26.72 3.05 3V Rumker . . 2799 • • 36.3 49.9 1.4 • • 8 9 49.18 0.831 3 22.46 ! a. Si; 31 Mars . . . 8.F. . . 3.0 15.6 28.1 t f 8 11 15.55 2.161 33 Ruraker . . 2799 • • 24.2 36.7 49.3 • • 8 14 36.72 0.6-4 331.17 1.54 331, Mars . . . N.P. , . 7.5 20.3 32.6 8 16 211.12 5.13 34 Rumker . . 2799 • • 30.0 43.6 54.0 • • 8 19 4-2. 18 2.78| 3 22.06 2.34i 35c Mars . . . 8 F. r f 52.8 5.3 17.8 8 33 5.28 4.07 35 Rumker . . 2799 14.5 27.0 39.5 • • . 8 35 26.98 +2.43 —3 21.70 +1.64 Remarks. Up to the moment of commencing work, the images, and particularly of Man*, were flaring and unsteady. Afterwards they became more satisfactory t and dually excellent. it Very sharp, but wavy. c Interrupted by clouds. b Barely visible through clouds. Results. h. m. s. m. 8. Rer. H Mean N. P . . . Nine transits . . 7 31 18.19 — 320.773 . . +1.764 . . . . =34.38 Mean 8. F . . . Nine transits . . . 7 36 37.16 — 319.9*8 . . . +1.070 . . . . =30.65 h. in. rn. s. h. m. s. Correction for chronometer at 7 31 . . . — 1 53.49 Correction for chronometer at 7 36 . . . — 1 53.51 . . 7 34 43 65 - 5 18.95 104 OPPOSITION OF MAES, 1851-52, DECEMBER 89, lh,M-< oiitlniinl. Rttult* — Continued. A P. K. limb' In A. R. reduced to Me . Variation of A. R. in Sm. 19*. ... Observed P. V. diameter h. m. A » at 7 31 . . 19.38 . . + 9.56 . . 14.94 M . 0.03 A V 8. liratx mi.-r. in rev. . . . Variutlnn of declination in 5m. 19«. Corr. for dinm. ofmicr. wirea . . Observed N. 8. diameter . . . h. m. A f at 7 38 . . 0694=13.53 + 1.98 . . — 9.90 . . 19.61 M . 0.09 DECEMBER 3O, 1891. 1 Chronometer time of transit. Planet— Star. Thermometer* 1 Mean of wire*. ' M' D.p Object. A. B. C. D. £. A a. Ad. PBBi Air. Wet. a. a. a. a. a. h. m. a. Rev. m. >. Rev. Inches. 4) . • 1 Man . . . 8.F. . 37.0 49.0 1.5 . 6 40 49.15 +14.00 38.054 54.5 53.9 8 Ramker . . 979» . . 43.5 55.0 7.5 . . 6 44 55.33 — 4.44 -4 6.17 + 18.44 Ther. Mt. 3 Man . . . N.P. t 6.5 18.5 30.5 . . 6 47 18.48 +14.43 68. °4 4 Runiker . . 3799 . . 13.0 36.0 38.5 . . 6 SI 95.81 — 4.98 4 7.33 19.40 Bar. red. to3i-F. 27.951 5 Mara . , . 8.F. . . 4.0 16.5 39.3 . . 6 53 16.58 + 13.171 6 Rumker . . 3799 • • 10.5 33.0 35.6 • • 6 57 93.0) — 5.45 4 6.44 18.631 7 Man . . . N.P. . 53.8 6.5 19.1 C 59 6.45 + 13.84 8 Kumker . . 3799 1.5 14.0 88.5 • • 7 3 13.98 - 5.86 4 7.53 19.50 9 Man . . . 8.F. 33.3 44.8 57.5 m f 7 4 44.85 + 13.43 10 Rumker . . 9799 • • 38.8 • • 4.0 • • 7 851.3U -6.481 4 6.54 18.841 11 Man . . . N.P. 48.5 1.0 13.5 . 7 11 0.98 fl9.»3t 19 Rumker . . 9799 • • 56.7 9.0 91.5 • • 7 15 9.05 — 6.81 4 8.07 19.741 13 Mara . . . 8.F. t t 44.0 56.8 9.3 . 7 16 56.88 +11.74 14 Rumker . . 9799 • • 51.3 4.0 16.5 • • 7 91 3.88 -7.8H 4 7.30 18.991 15 Mara . . . N.P. . . 39.4 59.0 4.5 789 51.95 + 13.90 16 Rumker . . 9799 . . 47.8 0.5 13.1 • • 797 0.45 -7.831 4 8.50 19.831 17 Man . . . B.F. . . 30.0 49.S 55.1 . . 78849.59 + 11.141 18 Runiker . . 9799 • • 37.7 50.4 3.0 • • 7 3350.35 — 7.9»1 4 7.83 19.14 19 Man . . . N.P. t 55.9 7.8 90.4 t 7 35 7.78 + 11.58 90 Rumkor . . 9799 • • 4.5 17.9 99.8 • • 7 39 17.15 — 8.33 4 9.37 19.96 11 Man . . . B.F. t , 50.0 8.5 15.0 m t 7 41 9.48 +10.6.11 « Rumker . . 9799 j . . StJ.O 10.6 93.0 • • 7 45 10. S3 - 8.66 4 8.04 19.391 • Mara . . . N.P. . , 1.5 14.3 96.6 t 7 47 14.19 +11.041 84 Rumker . . 9799 11.3 93.8 36.5 • • 7 51 33.85 - 9.06 4 9.73 80.101 U Mara . . . BF. 6.9 19.5 34.0 . . 7 S3 19.45 + 10.03) » Ramker . . 9799 • • 15.5 98.9 40.6 • • 7 67 98.0B -9.361 4 8.64 19.40 87« Mara . . . N.P. t t 3.0 15.7 38.0 m t 7 59 15.55 +10.671 98 Ramker . . 9799 • • 13.3 95.8 38.4 • • 8 395.83 - 9.63 4 10.37 80.301 • Mara . . . 8.P. f t 16.4 98.8 41.4 . , 8 598.85 + 9.78 3V Ranker . . 9799 • • 95.5 3H.O 50.6 • • 8 938.09 — 9.86 4 9.17 19.58 91 1 Man . . . N.P. . . 4.5 16.8 39 5 . 8 11 18.99 +10.37 38 Ranker . . 9799 . . 14.8 87.8 40.0 • • 8 15 87.38 -10.161 4 10.40 80.531 33 Man . . . BF. 44.5 57.0 9.5 . 8 16 56.98 + 9.48 34 Ranker . . 8719 . . 51.0 6.6 19.1 • • 881 6.55 —10.33 —4 9.57 +19.81 AT SANTIAGO DE CHILE. 105 DECEMBER 30, 1851— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Siar. Bar. Thermometers. A. B. C. D. E. A a. A<5. Air. Wet. 8. s. s. s. s. h. m.s. Rev. m. s. Rev. Inches. . • • 35 Mare . . . N.P. . 56.6 9.2 21.7 t 8 23 9.15 +10.25 28.040 54.5 52.2 36 Rumker . . 3799 . . 7.5 20.0 32.6 . . 8 27 20.02 —10.41; —4 10.87 +20.66J 37 38 39 Mars . . . 8.F. Rumker . . 3799 Mars . . . N.P. • • 50.3 0.2 27.0 3.0 12.8 39.6 15.5 25.3 52.2 • • 8 29 2.92 8 33 12.75 B 34 39.58 + 9.29 —10.56 +10.03 4 9.83 19.85 Ther. an 66°. 4 Bar. red. to 3-r P. 27.938 40 Rumker . . 2799 38.4 51.0 3.5 • • 8 38 50.95 —10.71 —4 11.37 +20.74 Remarks. Fine night. Images sharp and clear; but a fresh wind from the northward occasionally created tremor in the instrument. a Flaring and unsteady. A Steady and sharp again. Results. h. m. c. • m. s. Rev. / n Mean B. F 7 35 2 05 — 4 7.943 .... +19.198 . . . . = 6 14.17 Mean N. P 7 41 6 10 — 4 9.344 .... +20.079 . . . . =6 31.34 h. m. m. s. h. m. s. Correction for chronometer at 7 35 . . —1 56.25 7 33 5 80 Correction for chronometer at 7 41 . . — 1 56.26 7 39 9 84 it A P. P. limbs in A. R. reduced to are . . . 21.01 A N. 8. limbs micr. in rev . 0.881=17.17 Variation of A. H. in 6m. 4f. . . . . 3.11 Variation of declination tn 6m. 4t. . — 1.49 Observed P. F. diameter . . ' 17.90 Corr. for diam. of micr. wires . . . — 2.20 Observed N. S. diameter .... 13.48 h. m. n h. m. // A f at 7 35 . . . 0.33 A D at 7 41 . 0.34 DECEMBER 31, 1831. t Chronometer time of transit. Planet — Star. Thermometers. j Mean of wires. Micr. b Bar. Object. A. B. C. D. E. A a. Ad. 1 Air. Wet. S 6 X a. s. 8. 8. s. h. m. s. Rev. s. Rev. Inches. « 0 1 Man . . . S.f. 34.8 6 54 34.76 —5.07 27.975 61.4 52.0 2 Bessel ... 277 13.0 . . 6 55 12.96 +7.35} —38.20 —12.42} Ther. att. 3 Mars . . . N.P. 41 0 6 56 40 96 -•1 65 4 Beisel . . . 877 . . . . 19.8 6 57 19.76 +7.10 38.80 11.75 Bur. red. to 33° F. 27.867 & Mars . . . S.F. 58.8 6 58 58.76 —5.61} 1 Bessel ... 277 • • 36.0 6 59 35.96 +7.04 37.20 12.65} 7 Mars . . . N.P. 25.7 t t t t 7 1 25.68 —4.88} 8 Bessel ... 277 . . 4.2 • • • • 7 2 4.16 +6.77 38.50 11.65} 9 Mars ... S.F. 8.2 7 5 8.16 —6.03} tf Bessel ... 277 • • • • 45.6 7 6 45.56 +6.36} 37.40 12.42 11 Mars . . . N.P. 3.5 7 8 3.46 —5.34 12 Bessel ... 277 42.0 7 841.96 + 6.29} —38.50 —11.63} 14 106 OPPOSITION 0» MARS, 1851-52, HKCKMBKIt SI. 1881-Contlnurd. i i Object. Chrcmoin.hr Ulue of trmniil. Mcin of Kirn Mtcr. Planet— Sur. Bar. A. B. C. U. E. A «. Ad. Air. Wet Her. a. ter. Inebe*. • 13 14 IS u 17 II IB 90 • • S3 04 95 96 87 96 • • 30 31 a m 33 34 • 38 37 38 • 40 41 48 43 44 45 41 47 48 49 M SI 6* a M M»n 8 F 93. 3 1 10 93.98 7 11 0.46 7 19 43.B6 7 13 2i.T6 7 IS 46.96 7 16 94.16 7 18 48.96 7 IB 27.46 7 91 17.96 7 91 55.36 7 S3 58.06 7 94 37.76 7 98 10.96 798 49.46 7 98 15.46 7 98 54.46 7 30 15.96 7 30 51.46 733 8.96 7 33 49.96 7 35 15.46 7 3553.58 7 38 7.46 7 3846.36 7 41 17.76 7 41 56. 36 7 4339.46 7 44 19.46 7 46 94.56 7 47 3.46 7 54 4.76 75446.46 8 11 96.48 8 19 6.56 8 13 16.98 8 13 58.26 8 IS 15.58 8 15 55.96 8 17 31 .88 8 18 13.16 8 95 10.76 89551.46 -6.38 +6.13} —5.31 +s.e?} -6.60 +5.67} -6.03J +5.45 — 7.0J +5.271 -6.a +5.14 —7.16 +4.9H} -6.44 +4.87 -7.:i-j +4.74} —6.63 +4.49 -7.69 +4.31} —6.95 +<•*! —7.91 +4.09 —7.19 +4.0U -8.10 +3.67 -7.71} i3.2<} -9.06 +a.36 -8.89 +1.89} -9.68 +1.88 -B.OB +l.Mt —10.41 + 0.8S -38.90 36.80 37.90 39.20 38.10 39.70 38.50 39.00 39.90 40.00 38.10 40.80 38.60 40.00 38.80 41.70 40.10 41.60 40.40 41.90 —40.70 -19.49* 11.191 19.97} ll.-i-l 19.98} 11.36 19.15} 11.31 19.10 11.19 19.00} 11.90} 19.01 11.13} 11.87 10.86 11.63 10.71} 11.54 10.69} —11.36 97.875 Tht»r. an 68'. 4 Bar. red. to ar f 97.876 Th»r. utt 66' .0 Bar. r*d. to 3J' F. IT.87! 61.4 5S.5 59.0 51 8 Btmtt ... 077 Mar» NP • • 0.5 44 0 • • • • Beeaci ... an Mira . . . 8.F. • • • • 99.8 46 3 • • • • Bc«el . . 977 Mm . . . N.P Be*Ml ... 877 Man . . . 8.F. Bewel ... 377 Mm . . . N.P. • • • • 94.9 48.3 S7.S 17.3 56.4 58.1 • • • • Bewel ... 977 Mara . 8F • • • • 37.8 11 0 • • Beoel ... 977 MM. . . . N.P. BrtMl . . . 977 • • 49.5 15.5 54.5 . Mara . . . 8.F. 15.3 Beeael ... 977 Mara ... N.P • • • • 54.5 9.3 • • • • Beaeel ... 977 Mara . . . 8.F. Beeael . . . -zn Man . . . N.P. • • • • 49.3 15.5 53.8 7.5 • • Beaeel ... 977 Mara . . . 8.F. Be»el ... 977 Man . . . N.I'. Beeetl . . . 977 Mara . . . B.F. . . . . 48.3 17.8 56.4 • • . . • • 39.5 IB 5 • • • • 94. C BeMtl ... 977 Man . . . N*. 3 5 4.8 Bratrl . . 977 Mara . . . 8.F. • • • • 48.fi 96. S • • • • BMWI ... 977 Man . . . N.P. • • • • 6.6 i7.0 • • • • Beuel ... 977 Man . . . 8.F. • • 58.6 15.8 • • Beatel . . . 977 Mara . . . N.P. • • • • 56.0 38.0 • • • • Beeec! ... 977 Mara . . . 8.P. • - 13.2 10.8 • • BWK| ... 977 • • • • 61.5 • • Remark*. Finf ntfht. Imaged clean and iwadjr. There l> to link difference in right attention thai the mMunret are made hn.iilr. and not to well at It Oba*n>atl»-C onllniud. i rhnuionrifr lime of tnn.it. Planet— Star. Thermometer* ; V .' '\ • Micr. Bar. • OHM. A. B. C. D. E. A* A4 1 34.17 5.74 M Man . . . N.P. , r I.I 13.6 96.3 . 8 36 13.67 —1.93 M Beeael ... 977 • • 36.6 49.9 9.0 • • 8 37 49.37 +3.60 1 35.60 4.83 57 Man . . . BF. . 39.8 59.4 4.8 f f 8 38 52.33 —2.04 58 Bewd ... 977 • • 14.3 96.8 39.3 • • 840 96.80 +3.63 1 34.47 5.67 at Man . . . N.P. 19.5 33.0 44.6 8 41 32.03 1^35 m Beuel ... 377 • • 55.0 7.7 90.9 • • 8 43 7.63 +3.57 —1 35.60 —4.83 Remarks. Snperb night, and very «aiiafaciory meaaure*. a Micrometer recorded 2.871 rev. Mean 8. f Results. h. m. t. . . 7 54 13.50 m. s. Rev. — 1 33 736 . . 6 964 . . i ii . . 9 9 08 Mean N. P. . ... . . 7 57 29.10 — 1 34.021 . . . —5.397 . . . . 1 45.19 b. m. m. i. — 9 1.09 h. m. i. . . 7 S3 12.48 . . —9 1.09 . . 7 55 98.08 . . 3 15.60 A P. F. limb* in A. R. reduced to arc n . . . 19.97 // . O.W7— 16.90 Variation nC A. R. In 3m. I6i . . . . . 1.89 — 0.85 Observed P. F. diameter .... h.m. A»at 7 53 . . . 17.38 • . 0.10 Curr.for diam.of micr. wirei . . . Olmrved N. H. diameter .... h.m. A a HI 7 56 — 9.90 13.85 , B.tt AT SANTIAGO DE CHILE. 109 JANUARY », 1853. c Chronometer time of transit. Micr Planet— Star. Bar. Thermometers. 1 Object. A. B. C. D. E. A a. A A Air. Wet. •r £ 6 8. B. 8. 8. 8. h. m. s. Rev. m. s. Rev. Inches. o 0 2 1 1 Bessel ... 975 . 13.6 26.5 39.0 6 24 26.37 +5.59 27.948 62.5 56.2 2 Mars . . . S.F. . . 50.8 3.0 16.0 6 27 3.27 3.47 +2 36.90 —2.12 Ther. an. 3 Bessel ... 275 17.5 30.2 43.2 t t 6 30 30.30 5.15 68°. 7 4 Mara . . . N.P. . . 53.0 5.6 18.4 6 33 5.67 3.91} 2 35.37 1.23} Bar. red. to 32« F. 27.839 5 Bessel ... 275 34.3 47.0 59.5 6 31 46.93 4.78} 6 Mara . . . S.F. 10.6 93.5 36.0 • • 6 37 23.37 2.68 2 36.44 9.10} 7 Bessel ... 975 t t 1.3 13.5 26.5 m f 6 39 13.77 4.33 8 Mara . . . N.P. • • 36.3 49.5 1.5 • • 6 41 49.10 3.26 2 35.33 1.07 9 Bessel ... 275 11.8 24.4 37.6 6 43 24.60 3.98 10 Mare . , . S.F. • • 48.2 0.6 13.3 6 46 0.70 2.07 2 36^10 1.91 11 Bessel ... 275 25.5 38.0 50.6 • • 6 47 38.03 3.60 12 Mare . . N.P. • • 0.5 13.0 95.5 . . | "6 50 13.00 2.53} 2 34.97 1.06} 13 Bessel ... 275 30.6 43.3 56.0 f f C 51 43.30 3.96 14 Mara . . . S.F. 6.6 19.2 31.8 6 54 19.20 1.48 2 35.90 1.78 .15 Bessel ... 275 t t 50.0 9.6 15.2 . 6 56 2.60 2.99 16 Mara . . . N.P. • • 37.0 49.5 • • 6 58 36.94 2.07 2 34.34 0.92 17 Bessel ... 975 59.5 12.0 94.5 . 7 0 12.00 2.64 18 Mara . . . S.F. • • 34.8 47.4 0.0 7 9 47.40 1.09 2 35.40 1.69 19 Bessel ... 975 r t 3.0 15.5 98.0 , t 7 4 15.50 2.17} 90 Mara . . . N.P. • • 36.8 49.4 2.0 7 6 49.40 1.43} 2 33.90 0.74 91 Besael ... 975 . . 13.4 95.8 38.4 . 7 825.87 9.01} 92 Mara . '. . B.F. • • 48.0 0.5 13.5 7 11 0.67 JJ.50 2 34.80 1.51} 93 Be»sel ... 275 . . 9.5 99.9 34.8 7 14 23.17 6.46} 94 Mara . . . N.P. 43.0 55.8 8.5 7 16 55.77 5.89 2 33.60 0.57} 25 Bessel ... 975 . 12.5 25.0 37.5 7 18 25.00 6.23} 26 Mara . . . B.F. • ' 46.8 59.3 11.9 7 20 59.33 4.84 2 34.33 1.38} 97 Bessel ... 975 , , 10.5 93.0 35.6 7 22 23.03 5.97} 98 Mara . . . N.P. • • 43.8 56.4 9.0 7 94 56.40 5.44 2 33.37 0.53} 29 Bessel ... 975 , 5.5 18.0 30.5 7 28 18.00 5.70} 30 Mara . . . B.F. • • 39.5 52.0 4.5 7 98 52.00 4.44 2 34.00 1.96} 31 Be*sel ... 975 . 98.6 41.3 54.0 . 7 33 41.30 5.32} 33 Mara . . . N.P. • ' 1.5 14.0 26.6 7 36 14.03 5.00 2 32.73 0.32} • 33 Bessel ... 975 , 2.3 15.0 27.5 7 38 14.93 5.13 34 Man . . . 8.F. • • 36.0 48.6 1.2 7 40 48.60 4.03} 2 33.67 1.10} 35 Bessel ... 975 t t 58.3 11.0 23.6 . 7 49 10.97 4.94 36 Mars . . . N.P. 30.8 43.5 56.6 7 44 43.43 4.71 2 32.46 0.23 37 Bessel . . . 275 t 6.2 18.8 31.3 . 7 46 18.77 4.69 38 Mara . . 8 F 39.5 52.2 4.6 7 48 52.10 3.72 2 33.33 0.97 39 Bessel ... 275 55.5 8.1 20.6 7 50 8.07 4.34 40 Mara . . . N.P. • • 97.6 40.3 52.8 • • 7 52 40.23 4.25 2 32.16 0.09 41 Besxel ... 275 , 45.0 57 5 10 0 7 53 57.50 4.27 49 Mars . . . S.F. • • 1 .-.ii 30.6 43.2 7 56 30.60 3.45 2 33.10 0.82 43 Bern! ... 275 . f 41.0 53.5 6.2 7 57 53.57 4.14 44 Man . . . N.P. • • 12.5 25.1 37.8 • • 8 0 25.13 4.14 2 31.56 u.oo 45 Bessel . . . 275 f f 41.5 54.3 6.8 8 1 54.20 3.97 46 Mars . . S.F. 14.4 27.0 39.6 8 . 7 33 .2.28 7 37 48.61 m. •. — 3 4.34 — 9 4.95 m. i. + 9 34.00S. + 930.674. Rev. — 1 .916 — 0.319 = 0 93.70 = 0 6.99 b. m. i. Santiago lid. time 8. F 7 31 18.04 Santiago fid. time N. P 7 35 44.36 Interval 4 96.33 A P. F. limbs in A. R. reduced to are Variation of A. R. in 4m. 94i. . . Obterved P. F. diameter b. m 7 30 19.96 • 3.79 17.94 0.09 A N. 8. limb. mic. In rev 0.897=17.48 Variation of declination In 4m. S6t. . . — 1.18 Cotr. for diam. ofmicr. wirei . ... — 9.80 Observed N. 8. diameter 14.1* h. m. A f at 7 34 • 0.00 JAM'AKY 3, IBS*. Cloudy. AT SANTIAGO DE CHILE. Ill JANUARY 4, 1858. \o. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers A. B. 0. I). E. A a. &l. Air. Wet •. 8. S. 8. a. h. m. s. Rev. m. g. Rev. Inches. • 0 In Man . . . S.F. 47.6 0.3 13.5 25.7 6 35 0.46 +4.69 28.096 58.5 55.0 2 B.C. . . . 18132 . . 15.0 28.0 40.5 53.3 6 40 27.88 —1.781 —5 37.42 +6.471 a 4 5* Mara . . . N.P. B.C. . . . 18132 Mare . . . 8.F. 21.0 49.8 35.5 33.5 3.5 48.3 46.0 15.3 1.0 58.5 27.8 13.6 11.5 40.5 36.5 6 42 46.10 6 48 15.16 6 50 0.96 +4.97 —2.47 +3.22 5 39.06 7.44 Ther. att 65V7 Bar. red. to 3-1" F. 27.996 6 H.C. . . . 18139 3.5 16.5 29.0 41.7 54.5 6 55 29.04 —3.351 528.08 6.571 7 Mare . . . N.P. 9.0 31.6 34.3 46.8 59.6 6 57 34.24 +3.72 8 H.C. . . . 18132 38.5 51.0 3.8 16.6 29.5 7 3 3.88 —3.87 5 39.64 7.59 9 10 Man . . . S.F. H.C. . . . 18132 18.8 48.0 31.5 0.5 44.0 13.5 56.5 26.0 9.5 38.5 7 8 44.06 7 14 13.30 +2.24 -4.681 5 29^24 6.92J 11 Mare . . . N.P. 9.7 22.7 35.3 47.9 0.5 7 16 35.22 +2.81 12 H.C. . . . 18133 40.5 63.9 6.0 18.S 31.3 739 5.90 —5.34 5 30.68 7.95 H 14 Mare . . . S.F. H.C. . . . 16132 25.5 65.5 38.9 8.1 51.0 21.0 3.5 33.6 16.4 46.9 7 23 50.92 7 2930.88 +1.41 — 5.751 529.96 7.161 15 c Man . . . N.P. 5.2 17.8 30.5 43.3 56.0 7 31 30.56 +1.90 16 H.C. . . . 18132 38.5 49.5 2.0 14.6 27.4 7 37 2.00 -6.14 5 31.44 8.04 17 Mara . . . S.F. 41.6 51.2 6.8 19.5 32.3 7 39 6.88 +0.81 18 H.C. ... 18132 19.0 S4.7 37.5 60.3 3.0 7 44 37.50 —6.63 5 30.62 7.43 19 Mare . . . N.P. 20.3 33.0 45.6 58.0 11.0 7 46 45.58 +4.36 SO H.C. . . . 18132 68.5 5.0 17.8 30.4 43.9 7 52 17.78 —3.84 5 33.20 8.30 31 Mara . . . S.F. 38.6 51.3 3.5 16.5 39.4 7 54 3.86 +3.17 93 H.C. . . . 18132 10.3 93.0 35.8 48.9 0.8 7 59 35.69 —4.39 5 31 .76 7.56 93 i Mure . . . N.P. 1.9 14.6 27.3 39.9 52.6 8 1 37.26 +3.82 94 H.C. ... 18132 34.6 47.5 0.3 13.0 95.8 8 7 0.21 -4.761 5 32.98 8.554 95 Mare . . . S.F. 33.3 45.8 98.5 11.0 23.8 8 8 58.46 +2.80 26 H.C. . . . 1813J 5.0 18.0 30.5 43.8 56.0 8 14 30.54 —5.02 5 32.08 7.89 97 Mare . . . N.P. 5.6 18.5 31.5 44.9 57.0 8 16 31. 3« +3.39 •X H.C. . . . 18132 69.5 5.2 17.8 30.5 822 5.18 —5.33 533.82 8.72 39 30 31 33 Mare . . . S.F. H.C. . . . 18132 Mara . . . N.P. H.C. . . . 18133 35.5 11.5 61.0 96. 1 51.9 94.9 3.6 38.0 4.0 36.8 16.5 50.8 16.5 49.3 99.0 3.5 39.5 2.0 41.8 16.3 8 24 3.94 8 29 36.76 8 32 16.38 8 37 50.74 +2.53 —5.501 .+3.34 —5.62 5 32.82 — S 34.36 8.021 +8.96 28.089 Ther. att. 64°.6 Bar. red. to 32° F i7.992 54.7 52.0 Remarks. a Flaring. * Flaring and tremulous. c Sharp. d Steady. All following measures fine. Mean S. P h. m. a. . 7 30 2S 70 Results. m. a. Rev. —5 30.247 . . . +7.247 . — S 31.773 . . . +8.186 . / // . . . =3 31.34 ... =3 39.54 h. in. a. . . . 7 28 18 00 Mean N. P. . . . 7 38 10 84 n. m. Correction for chronometer at 7 30 . Correction for chronometer at 7 38 . A P. F. limbs in A. R. reduced to arc . Variation of A. R. in 7m. 42>. . . . m. 8. . — 2 10.70 . —2 10.79 H . . 32.89 . . — 5.23 17.66 . . 7 36 0 13 . . 7 42 13 A N. S. limits inirr. in rev. Variation of declination in 7m. 42). Corr. for diam. of niicr. wiri*s . // . . 0.939 = 18.30 . . — 2.14 . . — 2.20 h. m. i p «i 7 11 // . O.ll b. m. A p at 7 39 n . 0.14 112 OPPOSITION OF MAES, 1851-52, JA*t* ARY 5. 1M«. Chronometer time of iran.it. Ml. r Planet — Star. Bar. 'ht-rmometern. 1 Object. A. B. C. U. K. •JOn A* A*. Air. Wei. 1 J Rev , H Key. in. •• 1 Man . . . S.F. . 15.5 98.9 41.0 . 7 498.93 -f 3.09 98.031 71.5 58.7 > Bevel . . . 978 . . . . 98.0 7 6 15.98 +13.944 -1 47.03 —10.934 Ther. att. 3 Man . . . NP. 36.5 49.9 9.0 14.7 97.5 7 9 1.98 —4.90 67'. 0 4 Bevel ... 978 94.5 37.3 50.0 9.7 15.5 7 10 40.00 +5.71 1 48.03 9.91 Bar. red. to 33* F. 27.917 5 Man . . . S.F. 44.5 57.9 10.0 99.5 35.4 7 14 9.93 —5.41 6 Bevel ... 978 • • 44.7 57.4 10.0 99.6 7 15 57.35 + 5.31 1 47.43 10.73 7 Man . . . NP. 94.5 37.0 49.6 9.3 15.0 7 17 49.68 —5.33 8 Bevel ... 978 13.0 95.6 38.0 50.8 3.5 7 19 38.18 +5.054 1 48.50 10.984 9 Man . . . S.F. 44.8 57.4 10.0 92.5 7 91 57.35 —5.73 10 Hovel ... 978 90.0 39.8 45.5 58.0 10.6 7 93 45.38 +4.854 1 48.03 10.it 11 Man . . . N.P. 9.8 33.6 35.3 48.0 0.5 795 35.94 -3.064 19 Bevel ... 978 59.0 11.6 94.4 37.0 50.0 79794.40 +4.624 1 49.16 9.69 13 Man . . . S.F. 19.5 39.4 45.0 57.6 10.5 7 9945.00 -6.10 14 Bevel ... 978 7.5 905 33.3 46.7 58.5 7 31 33.10 +4.374 1 48.10 10.474 15 Man . . . NP. 91.5 34.9 48.8 59.3 13.0 734 46.76 —5.47 16 Bevel . . . 978 10.5 93.5 36.0 48.5 1.3 7 36 35.94 +4.14 1 49.18 9.61 17 a Mar. . . . S.P. 11.5 94.5 37.0 49.8 9.3 7 38 37.03 -6.43 18 Benel ... 976 0.0 13.5 35.3 37.6 50.7 7 4095.39 +3.97 1 48.90 10.39 19 Man . . . N.P. 13.6 38.5 39.3 52.0 4.5 7 43 39.18 —5.814 90 Bevel ... 978 3.5 16.4 29.3 41.6 54.6 7 45 99.06 +3.74 1 49.88 9.554 91 Man . . . S.F. 0.5 13.0 38.0 38.6 51.5 7 4895.93 -6.84 91 Bevel . . . 978 49.8 3.5 15.1 97.8 40.5 7 50 15.14 +3.33 1 49.33 10.17 93 Man . . . N.P. 12.5 95.4 38.0 5.5 3.3 7 55 37.94 -6.17 94 Bevel ... 978 3.0 15.8 98.5 41.0 53.8 7 57 28.43 +3.18 1 50.48 9.35 95 Man . . . S.F. 58.5 9.3 33.0 34.5 47.5 75991.94 —7.074 98 BeaMl ... 978 46.3 5S.O 11.5 94.9 36.8 8 1 11.56 +3.00 1 49.63 10.074 97 Man . . . N.P. 43.6 55.3 7.8 90.3 33.0 8 3 7.80 -6.33 » Bevel . . . 978 33.1 46.0 58.6 11.9 94.0 8 458.58 +3.854 1 £0.78 9.184 9* Man . . . S.F. 35.0 47.6 1.4 13.8 98.7 8 7 0.90 —7.31 30 Bevel ... 978 94.6 37.5 51.3 3.8 16.8 8 8 50.78 +2.76 1 49.88 9.97 31 Man . . . N.P. 35. H 48.5 1.3 13.7 98.5 8 19 1.14 -«.47 a Bevel . . 978 97.0 39.6 53.4 5.0 17.8 8 13 53.36 +3.59 1 51.33 9.06 33 Man . . . S.F. 95.5 38.9 50.6 3.4 16.3 8 15 50.80 —7.33 34 Bevel ... 978 15.5 98.4 41.1 53.6 6.5 8 17 41.03 +9.51 1 SO. 23 9.84 35 Man . . N.P. 34.1 46.7 59.4 11.8 94.8 8 19 59.36 -8.58 39 BeaMl ... 978 95.6 38.3 51.0 3.7 16.5 8 91 51.09 +9.37 1 51.66 8.95 98.009 57.0 53.0 37 Man . . . S.F. t . 97.7 40.9 59.5 893 40.17 -7.40 Ther. att. 38 Bevel ... 978 8.5 18.3 31.0 43.7 58.5 89531.00 +3.39 1 50.83 9.69 BJJ'°r°ed ,'.','••• P. 3B Man . . . N.P. 9.6 15.4 98.1 40.5 53.3 89797.98 —6.57 37.905 40 Bevel ... 978 54.5 7.1 90.0 39.6 45.5 8 99 19.94 +9.30 —1 51.96 —8.87 I Remarks. Then wai no tharp inner during ihe observation!, and the planet wai tllfhily tremulous and wary all the time. a Illurnd and tremuloui. AT SANTIAGO DE CHILE. 113 JANUARY 5, 1853— Continued. Results. h. m. s. . 7 44 19.73 m. s. Rev. — 1 48.856 . . . —10.281 / // . . =320.43 Mean N. P. . . . Ten transits . . h. in. . 7 48 54.70 m. B. 2 13.44 — 1 50.084 ... — 9.446 . . =3 4.10 h. m. s. . . 7 48 6.28 C f ometerat 7 49 2 13 48 . 7 46 41 82 r . . 4 34.94 A P. F. limbs in A. R. reduced to arc . Variation of A. R. in 4m. 35». . . . // . . 18.4-2 . . — 3.25 . . 15.17 A N. S. limbs micr. in rev. .... Variation of declination in 4m. 35». . . 0.838=16.33 — 1.28 — 2.20 h. m. A a at 7 43 // . 0.19 Observed N. S. diameter .... h. m. A o at 7 48 12.85 // . 0.16 JANUARY 6, 1853. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Ptanet— Star. Bar. Thermometers. A. B. C. D. E. An A from thai of a light to a dark red copper. Mean 8. F. . . . Eight transits . Mean N. P. . . . Eight transits . h. m. Correction for chronometer at 7 58 . Correction for chronometer at 8 3 , Results. h. m. s. 7 58 14.37 8 9 £9.27 m. a. — 9 16.63 — 9 16.64 m. s. + 9 41.957 . + 3 39.990 . Rev. — 3.537 -9.668 1 8.94 0 53.00 b. in. s. Santiago rid. time 8. F 75557.74 Santiago sid. time N. P 80 49.63 Interval . 4 44.89 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 4m. 45s. . . OjKrvedP.F. diameter . . . . I-. m. A o at 7 55 19.00 — 3.51 15.49 0.07 A N. 8. limbs micr. In rev 0.856= 16.94 Variation of declination in 4m. 45l. . — 1 .38 Cotr. for diam of micr. win-a ... — 8.90 Observed N. S. diameter 13.36 h. m. " A t at 7 69 0.04 JANUARY 1, 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. £. An. 4 A Air. Wet. a. a. a. s. a. h. m. a. Rev. m. a. Rev. Inchea. e • 1 Beesel . . . 978 34.5 47.0 59.8 19.5 35.9 6 48 59.80 +6.55 37.960 58.9 54.3 2« Mara . . . S.F. 98.9 41.0 53.5 6.3 19.9 6 53 53.64 —7.61 +4 53.84 —14.16 3 4« 5 Benel ... 978 Man . . . N.P. Beaael ... 978 91.5 13.6 99.8 34.3 96.8 35.8 47.0 39.9 48.3 59.7 52.0 0.6 19.4 4.5 13.5 6 58 46.98 7 3 39.33 7 5 48.90 +5.13 —8.00 +4.70 4 53.94 13.13 Ther. att. 66".3 Bar. red. H • h'. 97.858 It Man . . . 8.F. 15.6 98.8 41.9 53.6 6.6 7 10 41.16 — 9. 18J 459.96 13.88| 7 Benel ... 978 41.0 53.8 6.5 19.0 39.0 7 13 6.46 +7.49 8 Man . . . N.P. 39.5 45.3 58.0 10.5 23.5 7 17 57.96 —5.58 451.50 13.00 It Bessel ... 978 47.7 0.5 13.3 95.8 38.6 7 90 13.18 +7.05 10 Man . . . 8.F. 40.9 59.8 5.5 18.9 31.0 795 5.54 -6.63 4 59.36 13.67 11 Beuel . . . 978 19.5 39.3 45.0 57.5 10.3 7 97 44.93 +6.63) 11 Man . . . N.P. 10.1 99.8 35.5 48.9 1.0 7 33 35.53 -6.19 4 50.60 19.75, 13 Beaael . . . 978 93.0 34.7 47.3 0.0 13.7 7 34 47.34 +6.39 14 Man . . . 8.P. 13.3 96.0 38.5 51.3 4.9 7 3938.66 —7.20 4 51.39 13.59 15 Benel ... 978 90.3 33.0 45.8 58.5 11.3 7 41 45.76 +5.87 Iti Mara . . . N.P. 10.0 -•-.- 35.6 48.9 0.8 7 46 35.48 -6.6li 449.79 19.4(>t 17 Beaael . . . 978 49.0 54.8 7.5 90.0 39.8 7 49 7.38 +5.68 18 Mara . . . 8.F. 39.5 45.3 58.0 10.5 23.5 7 53 57.96 -7.63 4 50.58 13.91 19 Beaael ... 978 6.0 18.8 31.3 44.0 56.6 7 56 31.34 +5.45) 90 Man . . . N.P. 55.5 8.9 90.8 33.4 46.0 8 1 90.78 -6.84 4 49.44 19.99) 91 Besael ... 978 5.9 18.0 30.6 43.3 56.1 8 3 30.64 +5.96 91 Man . . . a.F. 55.0 7.5 90.6 33.0 46.0 8 8 30:49 -7.76* 4 49.78 13.03) 93 Beaael ... 978 30.8 43.5 58.9 9.0 91.7 8 10 56.94 +S.OH . 94. Man . . . N.P. 18.9 39.0 44.6 37.3 10.0 8 IS 44.43 -7.01 +4 48.18 -19.08, AT SANTIAGO DE CHILE. 115 JAarUARY T, 1853— Continued. o Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A<5. Air. Wet. 8. l. 8. 8. 8. . b. m. 8. Rev. m. s. Rev. Inches. • • 25 Bessel ... 978 18.5 31.2 44.0 56.4 9.0 8 17 43.82 +4.98 27.940 55.2 52.3 98 Mara . . . S.F. 7.5 90.4 33.0 45.6 58.4 8 23 32.98 —7.82 +4 49.16 —12.80 27 28/ 99 Bessel . . . 278 Mars . . . N.P. Bessel ... 978 56.0 43.6 8.7 56.5 46.6 21.5 9.2 59.0 34.0 21.8 11.8 46.8 34.5 24.5 8 24 21.40 829 9.12 8 30 59.14 +4.S3i -•-7.01 +4.82 4 47.72 ,» Ther. att. 65°. 0 Bar. red. to 32° F. 27.842 30 Mara . . . S.F. S9.5 35.0 47.6 0.3 13.1 8 35 47.70 — 7.77 4 48.56 12.59 31 Bessel ... 278 6.2 19.0 31.6 44.2 57.0 8 37 31 .60 +4.82 33 Mars . . . N.P. 53.5 5.9 18.5 31.3 44.0 8 42 18.64 —6.84 +4 47.04 —11.66 Remarks. / a Blurred and tremulous. d Dim and blurred again. » Worse. e Steady. c Tolerably good, though wavy. /Good. Results. b. m. i. m. s. Rev. / '1 Mean 8. F. . . Eight transit! . . . 7 46 14.76 + 4 51.070 ... — 13.357 . . • • =490.33 Mean N. P. . . Eight transits . . . 7 53 40.14 + 4 49.555 ... — 12.407 . . . . =4 1.81 h. m. m. s. h. m. s. Correction for chronometer at 7 46 . . . — 2 19.98 . . . 7 43 54.78 Correction for chronometer at 7 54 . . —2 19.99 . . . 7 51 20.15 . . . 7 25 37 A P. F. limbs in A. R. reduced to arc . . . 22.7-J A N. 8. limbs micr. in rev. . . . . .0.950=18.52 Variation of A. R. in 7m. 25t. . . . . . . —5.71 17.01 Variation of declination in 7m. 25*. . . —2.17 Observed N. S. diameter . . . . . 14.15 h. m. ii b. m. « A a at 7 41 . tM A o at 7 49 . 0.21 JANUARY 8. 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. Ao. AJ. Air. Wet. s. r. s. l. s. b. m. i. Rev. m. s. Rev. Inches. a • la Bessel . . . 278 6.2 19.0 31.6 44.3 57.1 625 31.64 — 3.67J 28.012 56.0 51.0 9 Mars . . . N.P. 45.5 57.6 10.5 23.2 36.0 6 99 10.56 +4.45 +3 38.92 +8.12, 3 4 9 Bessel ... 978 Mars . . . S.F. Be.se! ... 878 52.2 32.9 14.2 5.0 44.6 27.0 17.8 57.6 39.7 30.5 10.9 52.3 44.0 23.0 5.0 6 31 17.90 6 34 S7.52 6 37 39.64 —4.10 +3.11, —4.75 3 39.62 7.21, Ther. att. 62°. 6 Bar. red. to 32° F. 27.920 6 Mara . . . N.P. 53.0 5.5 18.0 30.7 44.0 6 41 18.21 +3.52 3 38.60 8.27 7 Bessel ... 278 32.5 45.3 58.0 23.4 6 43 57.96 —5.24 8 Man . . . S.F. 11.3 24.0 36.8 49.5 2.3 6 47 36.78 +2.31 3 38.82 7.55 9 Ressel ... 978 27.2 40.0 52.8 5.4 18.2 6 49 52.72 —5.70, 10 Mara . . . N.P. 5.0 17.5 30.3 42.8 55.5 6 5.1 30.22 +9.75 +337.50 + 8.45i 1 1 fl OPPOSITION OF MARS, 1851-52, JANVARY 8, IWUt-rontlnnrfl. 6 Object. Chronometer time of intuit. Mean of wire. Mlcr. Plinel-Sur. Bar. Thermometer* A. B. C. D. E. AtV &l. Air. Wet. b. m. a. Rev. m. m. Bcr. K .... • • 11 Bwcci . . . ST8 a.« 45.3 58.0 10.7 93.4 85558.M -6.18 97.989 53.0 W.7 19 Man . . . 8.F. 10.8 93.5 36.9 48.7 1.7 6 59 35.18 +1.61 +338.18 +7.79 13 14 15 Bcawl . . . 878 Man . . . N.P. Ham) ... 978 98.9 5.0 93.9 41.0 17.8 35.9 51.6 30.5 48.5 6.3 "43.9 1.9 19.0 55.6 14.0 7 1 53.61 7 530.42 7 848.56 —3.67 +4.92J —4.90 3 36.80 8.59J Ther. an. Bar. red. to ar r. 27.900 16 Man . . 8.F. 0.5 13.4 96.9 38.8 51.5 7 19 96.08 +3.81 3 37.59 8.01 17 Beaael ... 978 7.0 19.8 32.4 45.0 57.8 7 14 32.40 —4.61 18 Man . . . N.P. 43.4 56.0 8.8 21.3 34.9 7 18 8.74 +4.93J 336.34 8.84J M Be*Ml ... 978 47.0 59.8 19.4 94.8 37.5 7 20 12.30 —4.87 Man . . . 8.P. 14.0 36.5 49.3 1.9 14.8 7 33 49.30 +3.221 337.00 8.091 Sit Btwel ... 978 49.S 2.5 15.0 97.5 40.4 7 34 14.98 -4.96 • Man . . . N.P. M.t 37.0 50.0 2.5 15.5 7 37 49.90 +4.90 334.92 9.16 •• Bcwl ... 978 99.9 49.1 54.9 7.5 90.4 7 39 54.83 -4.45J M Man . . . 8.F. 5.3 18.0 30.6 43.3 56.9 7 43 30.68 +4.02 335.86 8.47J as Beaiel ... 978 9.6 98.5 35.1 47.8 0.5 745 35.10 -4.64J M Man . . . N.P. 44.0 56.8 9.6 92.0 35.0 7 49 9.48 +4.6CJ 334.38 9.25 97 Beuel ... 978 6.5 19.9 31.8 44.5 57.3 7 51 31.86 -4.871 • Man . . . 8.F. 41.5 54.5 7.9 19.8 32.5 755 7.10 +»•"! 335.24 8.65 • Beniel . . . 878 , . 51.3 4.9 16.8 99.8 7 57 4.19 —5.05 30 Man . . . N.P. 19.5 95.9 38.0 50.7 3.3 8 0 37.94 +4.50* 333.75 9.55} 31 B«M«| ... 978 17.5 30.9 43.0 55.7 8.2 8 9 49.99 —5.14 32 Man . . . 8.F. 51.7 4.6 17.9 29.8 42.3 8 6 17.19 +3.674 3 34.20 8.811 334 Benel ... 278 K.8 99.5 42.2 54.8 7.6 8 843.18 -5.94 34 Man . . . N.P. 50.0 9.5 15.3 97.7 40.4 8 12 15.18 +4.46 333.00 9.70 35 Brawl ... 978 37.0 50.0 2.8 15.5 98.9 8 15 2.70 — 5.38» • Man . . 8.F. 11.5 94.0 36.8 49.4 2.3 8 18 36.80 +3.63 3 34.10 9.01} 37 Brawl ... 978 3.6 15.4 98.0 40.6 53.4 89038.00 — 5.4IJ 38 Man . . . N.P. 35.0 47.7 0.5 13.9 85.7 8 24 0.44 +4.45 332.42 «.86» »• Berael ... 978 36.9 48.7 1.5 14.3 27.0 896 1.54 -5.48 40 Man . . . 8.F. 9.5 sa.a 34.8 47.5 0.9 8 99 34.84 +3.70 333.30 9.18 41 Beawl ... 978 53.0 5.6 18.4 31.1 43.8 8 31 18.38 -5.48 4S Man . . . N.P. . . 37.3 50.9 2.7 15.5 8 34 50. Oy +4.56 331.71 10.04 43 BcMrt ... 978 15.5 28.3 41.0 53.6 6.5 8 36 40.98 — 5.44J 44 Man . . . 8.F. 48.9 1.0 13.6 96.3 .19.0 8 40 13.60 +3.87 +332.62 +9.3IJ Remarks. a During all the obfervalioni to No. 20 Incliuivc, both object* were badly defined and wavy. t Rrrordtd I7.:». at wire I). c Slightly Improving. ./ Bclli-r. e AH the re«l good memurci. Result*. h. m. •. m. P. Rrv. M. an N P. . . Fint five tnnatu . . < 53 31.64 + 337.632 . . . + H.4M . . . . =344.95 Mnn 8. F. . . Pint Are tranilu . . 85941.17 338.998 . . . 7.733 . . . . 3 30.60 Mean K. P. . . I.Mt »n tnin«lt> . . 8 697.17 3 33. 363 . . . 9.595 . . . . 3 7.01 Mc.n B. F. . . Lau ill inn. in . . 8 19 13.36 + 334.920 . . . + 8.906 . . . . ±=953.62 AT SANTIAGO DE CHILE. JAM'ARY 8, 1853— Continued. Results — Continued. 117 h. in. m. a. •2 °°.66 h. in. 8. 6 51 8.98 1 t 7 0 2 22 67 6 57 18 50 ' 6 9.52 A P. F. limbs in A. R. reduced to arc . Variation of A. R. in 6m. 10s . . 8.94 . . +. 4.92 . . 13.86 A N. 8. limbs micr. in rev Variation of declination in 6>n. 10s. . Corr. for diam. of micr. wires . . . . 0.726 = 14.15 + 1.82 — 2.20 b. m. m. i. 2 22 80 Observed N. s. diameter .... 13.77 h. m. n. 8 4 4.37 .„ 2 22 81 8 9 50 55 5 46.18 A F. F. limbs in A. R. reduced to arc n . . 12.85 . . + 4.61 A N. S. limbs micr. in rev Variation of declination in 5m. 46f. . // . 0.687 = 13.39 + 1.71 . . 17.46 — 2.20 h. m. A 0 at 6 49 ;' . . 0.17 Observed N. S. diameter .... / h. m. 12.90 // . . . 0 16 A oat 6 55 . 0.15 A 021 8 8 . 0.15 JANUARY 9, 1859. « Chronometer time of transit. Planet— Star. Thermometers. i M f ' Micr. H-lr i Object. A. B. C. D. E. A a. At uar. Air. Wet. s m i 8. - s. 8. •• h. m. s. Rev. m. 8. Rev. Inches. • a 1 Bemel ... 978 40.3 52.8 5.5 18.2 31.0 6 43 5.54 +6.90 38.031 58.7 54.0 9 Man . . . S.F. 32.0 45.0 57.6 10.3 33.2 6 46 57.62 3.34 + 3 52.08 —3.56 Ther. att. 3 Bessel . . . 378 42.4 55.2 7.6 30.5 33.3 6 49 7.80 6.44 66°. 8 4 Mara . . . N.P. 33.0 45.5 58.3 11.0 33.8 6 52 58.32 3.741 350.52 2.691 Bar. red. to 32° F. 27 928 S Benel . . .378 33.5 46.3 59.0 11.6 24.5 6 54 58.98 6.04 6 Mara . . . S.F. 24.6 37.5 50.3 3.0 15.9 6 58 50.26 2.61 3 51.28 3.43 7 Benel ... 378 46.8 59.5 12.3 24.9 37.6 7 1 12.20 5.671 8 Mare . . . S.F. 37.6 50.5 3.4 15.9 28.5 7 5 3.18 2.39 350.98 3.281 9 Bcssel ... 278 23.5 36.3 49.0 1.7 14.5 7 7 49.00 5.14 10 Mare . . . N.P. 13.3 25.7 38.5 51.2 4.0 7 11 38.52 3.79 3 49.52 2.35 11 Bessel ... 978 13.8 28.7 39.3 59.0 4.6 7 14 39.38 4.81 13 Mare . . . N.P. 2.8 15.7 28.4 41.0 53.8 7 18 28.34 3.511 3 49.06 .3.291 13 Be.se! ... 378 39.1 44.7 57.5 10.0 23.9 7 90 57.44 4.47 14 Mars . . . S.F. 22.0 31.5 47.3 0.0 12.8 7 24 47.32 1.53 3 49.88 2.94 15 Bessel ... 978 28.9 41.0 53.8 6.3 19.0 72653.68 4.11 16 Mars . . . N.P. 16.6 29-2 42.4 54.6 7.5 7 30 42.06 3.04 3 48.40 2.07 17 Bessel ... 378 16.5 29.0 42.0 54.5 7.4 7 3241.88 3.881 18 Mara . . . S.F. 5.5 18.3 31.0 43.7 56.5 7 36 30.98 1.101 3 49.10 2.78 19 Be.se! ... 278 3.0 16.0 38.6 41.2 54.0 7 3828.56 3.631 20 Mara . . . N.P. 50.7 3.5 16.3 28.7 41.3 7 42 16.08 1.72 3 47.52 1.911 21 Be.se! ... 978 59.0 11.7 24.3 37.0 49.8 7 44 24.36 5.40 23 Mara . . . S.P. 47.5 0.2 13.0 25.4 38.3 7 48 19.88 3.87 3 48.52 2.53 23 Bessel . . 278 47.0 0.0 13.6 25.2 38.0 7 50 12.56 5.23 34 Mara . . . N.P. 34.0 46.8 59.3 12.0 24.8 7 33 59.38 3.51 3 46.82 1.72 25 Bessel ... 278 39.4 51.3 5.0 17.7 30.3 7 56 4.74 5.01 26 Mars . . . S.F. 27.3 40.0 52.6 5.0 18.2 7 59 52.62 +2.611 +3 47.88 —2.391 118 OPPOSITION OF MARS, 1851-52, j V\l VI .Y 9. 1 HS4-fontl« .i,.i. J ( Planet- -Star I Micr Bar OtjWt. A. B. c. D. E. A*. A 4. Air. Wet. g * 97 B*anl ... 878 16.3 99.0 41.6 64.3 7.9 8 1 41.68 +5.00 97.990 65.3 • 4 H Man . . . N.P. 9.6 15.3 98.0 40.5 53.5 8 597.98 3.46 -j 3 46.30 —1.64 99 30 31 B«M*J ... 978 Man . . . 8.F. Beacel ... 978 10.3 67.5 53.9 93.9 10.9 6.0 36.0 99.8 18.8 48.5 35.5 31.4 1.3 48.3 44.9 8 735.86 8 11 99.86 8 15 18.79 4.84 9.56 4.69 3 47.00 Ther.att. 63°. 0 Bar. red. u> a i-. I7.8M 39 Man . . . N.P. 38.8 51.5 4.3 16.9 99.7 8 19 4.94 3.35 3 45.53 1.34 31 Be***) ... 978 30.6 43.3 56.0 8.6 91.5 890 56.00 4.59 Mm Man . . . 8.F. 17.0 99.6 49.6 55.9 7.8 8 94 43.44 9.47 346.44 9.19 as Beaacl ... 978 ' 4.8 17.6 30.4 43.0 56.0 898 30.36 4.48, * Man . . . N.P. 49.8 9.3 15.9 97.6 40.4 830 15.10 3.33 3 44.74 1.13J 37 B«Mel ... 878 96.0 38.6 51.4 3.9 16.8 S 31 51.34 4.46» IB Man . . . 8.P. 11.5 94.3 37.0 49.8 9.5 8 3537.09 9.59 3 45.68 1.87J 39 Beaael ... 978 54.3 7.0 19.8 39.3 837 6.96 4.48J 40 Man . . . N.P. 95.6 38.9 61.9 3.7 16.6 840 51.06 +3.50 +3 44.10 -0.881 Remarks. Nifht very (air, and obtenratloiu ulUfaciory, though both objeeu were wary in motion, a Recorded 37.6«. at wiie C. MM 8. P. . . M.-«n N. P. . . . Tea yuuitt . b. m. a, . . 7 41 11.79 . . 7 4834.11 m. i. . . —9 95.50 . . —935.51 • . . . 94.51 . . . 6 10 Result*. m. •. Rev. + 3 48.884 .... —9.790 . + 347.950 .... —1.805 . i it . . =053.01 . . =0 35.18 h. m. •. . . 7 36 46 33 Correction for chr Correction for chr A P. P. limb* In A Variation of A. R. OW«UI< P. P. dii b. m. A»at737. . . b. m. onomcter at 7 41 . onometer at 7 49 . . R. rednced to are In 7«t. 99>. . . . Santiago M.I. time N. P . . 7 46 8 60 . . 7 SB 38 A N. 8. limbs micr. in rcr. . . . Variation of declination in 7m. 93>. . Corr. for diam. of micr. wirei . . Observed N. 6. diameter . . . b. m. A f at 7 44 . • . 0.915 = 17.83 — 9.90 — 9.90 13.43 II . 0.03 . . . 18.41 H . 0.05 JAJfTJARY 10, 1859. i OBJM, Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometen. A. Fl C. D. E. A 4k A j. Air. Wet. i - a, a. ft. a. h. m. a. Rev. a. Rev. Inches. • • i Man . . . 8.P. t , g t 94.6 I • . 6 47 94.58 +3.50 98.003 60.0 55.7 9 Bc«rl . • . 978 . . . . 19.0 • • . . 6 48 11.98 7.95 —47.40 —4.45 3 Man . . . N.P. 31.0 43.8 66.8 6 49 43.H9 4.33J Ther. alt. 66' .0 4 ••awl ... 978 . . 90.3 33.0 45.6 . . 6 50 33.99 7.88 49.10 3.5.SJ Bar. red. to a i. ••. •.., . 6 Man . . . 8.P. . . 10.6 93.9 35.8 . . 6 5993.19 3.33 * •MM! ... 978 • • 68.1 10.6 93.6 • • t 53 10.89 +7.79 —47.70 -4.39 AT SANTIAGO DE CHILE. 119 JANUARY 1O, 1853— Continued. No. for rercrence. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A 0. A - 1.54 3 80 54 00 2 26 73 Man . . . 8.F. 41.7 8 23 41.68 | , , 74 BraMl 778 35.0 8 24 34 98 3.73 53 30 3 04 75 76 Man . . . N.P. Bevel . . . 278 • • 99.3 23.6 • • • • 82529.28 8 26 33 58 1.54 3.76 54.30 2 22 77 78 7* M 61 81 Man . . . 8.F. Bevel ... 978 Man . . . N.P. Bevel ... 978 Man . . . B.P. Bevel 978 • • • • 98.6 21.3 18.6 13.5 30.6 24.2 • • • • 827 38.58 8 98 21.28 8 29 18.58 8 30 13.48 8 31 30.58 8 3J 24 18 0.71 3.77 1.60 3.75 0.7I| 3 63 53.70 54.90 53 60 3.06 2.15 8911 83 Mara N P 22.0 8 33 21 98 1 50 M Bevel . . 978 16.8 8 34 16.78 3 50 54 80 2 09 M Mara . . 8 F. 18.3 8 35 18 28 0.73 86 87 88 88 (0 91 Bevel . . . 978 Mara . . . N.P. Bevd ... 978 Man . . . 8.F. BeavJ ... 978 Man . . . N.P. • • • • 12.3 7.3 9.5 53.5 47.6 : :: • • • • 6 36 12.28 837 7.98 8 38 2.48 8 38 53.48 8 39 47.58 8 40 35 28 3.63 1.61 3.62 0.76 3.66 1.671 54.00 55.20 54.10 2.90 2.01 2.90 n Bevel ... 978 • • • • 30.6 • • • • 8 41 30.58 +3.65 -55.30 -1.97J Dutil 7*. 90». the imaf n nrjr laUifactory. Remarks. 1 very well defined, nor their motion! itrady, but alter that time both object! were eitremeljr tnarp, and the AT SANTIAGO DE CHILE. 121 JA1TCART 10, 1833— Continued. Results. Mean 8. F. . . Twenty-three transits Mean N. P. . . Twenty-three transit* h. in. h m. a. . 7 47 49.60 75019.10 m. H. 2 27. P3 m. s. Rev. — 0 50.974 .... —3.612 — 0 53.256 .... —2.735 ; // . .. . =1 10.40 . . . =0 53.30 h. in. 8. . . . 7 45 21 77 . —8 27.63 ' . . . 7 47 51.27 ... 2 29 50 A P. f. limbs in A. R. reduced to arc Variation of A R. in 3m 30*. . . // . . 19.33 . . 2 13 A N. S. limha mic.in rev. . . . It . . 0.877 = 17.09 0 75 . . 17.10 . . 2 20 h. m. A p at 7 46 . 0.06 Observed N. S. diameter . . . h. m. A o at 7 48 . . 14.14 // . 0.05 .1 \ M \ |{ V 11, 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. /,. A J. Air. Wet. h. m. s. Rev. m. a. Rev. Inches. O 0 1 BMM! ... 378 . 53.3 5.7 18.5 31.4 7 59 5.85 +4.361 28.093 56.3 52.0 2 Mare . . . S.F. 6.0 18.8 31.3 44.0 56.8 8 131.38 3.79 +2 35.53 — 0.571 3 4 5 Berael ... 378 Mare . . . N.P. Bessel ... 278 18.8 41.5 43.5 30.0 54.0 56.4 43.5 6.8 9.3 55.3 19.5 21.7 8.3 32.3 34.5 8 3 42.54 8 6 6.83 8 8 9.08 4.12J 4.50 4.04 334.38 +0.37i Ther.a(t. 64°. 2 Bar. red. to 32° F. 27.997 6 Mare . . . S.F. 8.5 31.4 34.3 46.8 59.7 8 10 34.13 3.63 225.04 —0.41 7 Bessel ... 278 50.5 3.4 16.0 88.8 41.6 8 13 16.06 4.01} 8 Mare . . . N.P. 14.3 37.0 39.6 53.4 5.0 8 14 39.64 4.501 2 23.58 +0.49 9 Bemel ... 378 59.3 11.8 84.7 37.5 50.3 8 16 84.72 3.96 10 Mare . . . S.P. 33.8 36.5 49.0 1.7 14.8 8 18 49.16 3.63| 2 24.44 — 0.331 11 Bes«el . . . 278 5.5 18.8 31.3 44.0 57.0 830 31.33 3.90i 13 Mare . . . N.P. 38.7 41.5 54.4 7.0 19.8 8 33 54.38 4.58 2 22.96 +0.671 13 Beuel ... 378 19.6 33.4 45.8 56.0 10.8 8 34 45.23 3.93 14 Mare . . . S.F. 43.5 56.5 9.0 31.6 34.7 637 9.06 3.80 2 33.84 —0.13 15 If Bessel ... 278 Mare . . . N.P. 33.4 45.8 36.0 58.5 48.8 11.4 0.7 34.0 14.5 36.8 8 38 48.68 8 31 11.30 3.92 4.70 3 23.62 +0.78 38.068 55.2 52.5 17 18 19 Bewel ... 878 Mare . . . 8.F. Beuel ... 378 29.8 53.3 33.0 43.5 44.6 55.3 18.0 8.0 30.8 10.2 30.8 44.3 33.0 8 3255.38 8 35 18.40 8 36 57.46 3.94 3.961 3.961 233.12 +0.02J Ther. att. 63°. 0 Bar. red. to 32° F. 27.976 20 Mare . . . N.P. 54.0 6.8 19.5 32.3 45.0 8 39 19.53 +4.86 +2 22.06 +0.871 Remarks. Early pan nt the night cloudy; alter it cleared away, the measures were very fair. h. m. s. 8 18 40 43 Remits. m. >. Rev. + 3 34 394 0 285 i it Mean N. P. . . Five transits . . . h. m. Correction for chronometer at 8 19 . . . 8 22 50.31 m. s. . —2 29.34 . —3 29.35 + 3 33.100 .... +0.639 . Santiago sid. time S.F , . . 0 12.45 h. m. s. . . 8 16 11.08 . . 8 20 20 96 . . 4 9 88 & P. F. limbs in A. R. reduced to arc . Variation of A. R. in 4m. lOi Observed P. F. diameter it . . 19.41 . . — 3.66 . . 15.75 A N. S. limbs micr. in rev. ... Variation of declination in 4m. 10*. . Corr. for diam. of micr. wires . . , // , . 0.924 = 18.01 — 1.26 — 2.30 , . 14 55 h. m. A f ai 8 15 n . 0.00 b. m. A 0 at 8 19 . // 0.01 16' 122 OPPOSITION OF MARS, 1851-52, JAM ART It. 1859. 1 rhronomi-lrr lime of traniil. \|. Ill •' U ' • Micr. Planet— Star. Bar. 1 „. <•,...«,.:• • A. B. C. D. B. A«. A I. Air. Wet. 1 - |f , . 'm § I ACT* ni- •• 1 Bn~l . . . 978 9.8 15.5 98.9 . t 6 46 15.50 +3.3IJ 98.013 54.0 50.0 • Man . . . B.P. . . 14.3 98.8 39.7 6 47 96.93 3.97 +1 11.43 +0.6SJ Tbcr. lit * Bwd ... 978 7.0 19.6 39.5 t 8 49 19 70 3.05 63- .9 4 Man . . . N.P. • • 17.0 99.5 49.9 • • 6 5039.57 4.68 1 9.87 1.63 Bar i.-.l. lo32'F. 5 BnMl ... 978 35.5 48.9 1.0 . , 6 59 48.33 9.90 "'"'""' •• Man . . . 8.P. • • 48.3 69.0 19.7 • • 6 5359.33 3.63 1 11.10 0.79 7 B«ad . . 978 f . 99.4 35.0 47.7 , . 6 55 35.03 9.63 8 Man . . . N.P. • • 39.0 44.5 57.0 • • 6 56 44.50 4.31 1 9.47 1.68 * BnMl ... 978 46.0 58.6 11.5 t 6 58 58.77 9.40 U Man . . . 8.F. • • 56.6 9.3 99.0 • • 7 0 9.30 3.95 1 10.53 0.85 11 •••Ml ... 978 _ 91.5 34.0 46.8 7 4 34.10 1.80 Man . . . N.P. • • 30.4 43.0 55.5 • • 7 5 43.97 3.65 1 8.87 1.85 U Baaid ... 978 f r 10.9 93.0 35.6 f m 7 793.93 i.es» 14 Man . . . S.F. • • 90.3 33.0 45.5 • • 7 8 32.93 3.68 1 10.00 O.HSJ If BnMl ... 978 t 11.7 94.4 37.9 7 10 34.43 1.48 U Man . . . N.P. • • 90.4 33.1 45.6 • • 7 11 33.03 3.39 1 8.60 1.91 17 •••d ... 978 t 9.3 93.0 34.8 . 7 13 93.03 1.39 18 Man . . . 8.F. • • 18.8 31.5 44.9 • . 7 14 31.50 9.40 1 9.47 1.01 19 Bnwl ... 978 . 5.6 18.9 31.0 . 7 16 18.27 1.06 99 Man . . . N.P. • • 13.5 96.3 39.0 • . 7 17 96.97 3.15 1 8.00 9.09 91 BnMl ... 978 3.5 16.3 98.5 . 7 19 16.10 0.97 » Man . . . 8.P. • • 19.5 95.4 38.0 • • 7 9035.30 9.30} 1 9.90 1.231 S3 Bowl ... 978 . . 39.0 44.8 57.4 . 7 93 44.73 0.78 94 Man . . . N.P. • • 40.1 53.6 5.3 7 93 52.67 9.86 1 7.94 9.08 95 B««el ... 978 . . 37.4 50.1 9.6 . 7 95 50.03 0.63J • Man . . . B.P. • • 46.9 58.8 11.5 • • 7 98 58.83 1.95 1 8.80 1.3IJ 97 BnMt ... 978 , f 39.3 45.0 57.8 . 7 98 45.03 0.59 18 Man ... N.P. • • 39.8 59.3 •5.1 • . 7 99 53.40 3.73 1 7.37 9.31 » Btapcl ... 978 19.3 31.7 44.5 . 7 31 31.83 1.831 30 Man . . . 8.P. 97.4 40.1 59.6 • • 7 39 40.03 3.31 1 8.90 1.47J 31 BeaMl ... 978 f t 39.3 53.0 4.6 . 73551.97 1.69 * Man . . . N.P. 46.9 58.8 11.5 • • 7 .16 68.83 3.99 1 6.86 9.30 a BnMl ... 978 53.1 5.7 18.5 . 7 39 5.77 1.59 94 Man . . . B.P. • • 1.0 13.6 96.9 • • 7 40 13.60 2.97| 1 7.83 1.45J • BnMl . . . 378 t 36.9 49.5 9.9 7 41 49.53 1.38 36 Man . . . N.P. • • 43.4 56.0 8.6 • . 7 4956.00 3.81 1 6.47 3.43 01 BwMl ... 978 t t 9.0 14.8 97.4 . 7 44 14.73 1.39 38 Man . . . B.P. • • 9.5 99.3 34.5 • • 74593.10 9.89 1 7.37 1.57 • BnMl ... 978 . , 46.5 59.3 19.0 . 74659.97 1.90 48 Man . . . N.P. • • 53.6 5.4 18.1 • . 7 48 5.37 3.69 1 6.10 9.49 a BMM| ... 978 t 39.6 45.3 58.0 7 49 45.30 1.12J 49 Man . . . 8.P. • • 39.9 59.5 5.1 • . 7 50 53.50 9.76| 1 7.90 1.64 4J. B«a*d ... 978 . , 43.6 56.4 9.0 . 75356.33 1.00 41 Man ... N.P. • • 49.5 9.9 15.0 . . 7 55 9.93 3.60 1 5.90 9.60 4»r •Mad ... 178 t 6.0 18.8 31.5 7 56 18.77 0.93 41 Man . . . B.P. • • IS.S 95.5 38.3 '• • 7 57 95.43 4-9.73 + 1 6.66 +180 AT SANTIAGO DE CHILE. 123 JANUARY 12, 1858— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. I). E. A a. Atl Air. Wet. 8. 8. a. 8. B. h. m. s. Rev. m. «. Rev. Inches. O 0 47 c Bemel ... 278 37.6 50.3 3.0 7 58 50.30 +0.94 27.980 54.0 48.5 •1-.1 Mara . . . N.P. • • 43.2 55.6 8.5 7 5955.77 3.55} +1 5.47 +2.611 49 c SO 51 Bessel ... 378 Mars . . . B.F. Bessel ... 378 42.0 47.3 16.3 55.0 0.0 29.0 7.6 12.8 41.7 • • 8 19 54.87 8 21 0.03 8 22 29.00 1.93 4.13J 1.88J 1 5.16 2.20J Ther. an. 63°. 5 Bar. red. to 32° P. 27.886 Set Mars . . . 8.F. 81. 0 33.8 46.3 8 23 33.70 4.11t 1 4.70 9.23 S3 i:.--.'l ... 378 1.3 14.0 36.8 8 25 14.03 1.95 54 Mars . . . N.P. 5.2 18.0 30.5 • • 8 26 17.90 5.00 1 3.87 3.05 55 58 Bessel ... 278 Man . . . N.P. 6.0 9.5 18.8 23.3 31.4 35.0 • • 8 28 18.73 8 29 22.27 1.91 5.02 1 3.54 3.11 57 Bexel . . . 278 f f 34.5 47.9 59.8 . 8 30 47.17 1.95 58 Mara . . . 8.F. 38.8 51.5 4.3 • • 831 51.53 4.36 1 4.36 3.31 59 Besoel ... 378 . 53.5 6.2 19.0 8 33 6.23 1.90 10 Mare . . N.P. 56.7 9.5 23.2 . ' 8 33 9.47 +5.14 +1 3.24 +3.24 Remarks. Object! blurred, dim and unsteady, and the measures not very satisfactory until towards the close ot tne observations. < Recorded 54m. at wire C. d Observations interrupted by clouda. I: Steady, though blurred. t All the rest sharp and steady. c Just visible through clouds. Results. h. m. a. m. s. Rev. ( H Mean 8. F. . . First twelve transits . . 7 33 13.15 + 1 8.982 ... +1.223 . . . =023.84 Mean N. P. . . First twelve transits . . 7 36 33.30 1 7.577 . . . 9.157 . . •'; 0 42.04 Mean 8. F. . . Last three transits . . 8 35 28.43 1 4.740 . . . 9.248 . . 0 43.81 Mean N. P. . . Last three transits . . 83936.55 + 1 3.550 . . . +3.133 . . . =1 1.06 h. m. m. s. h. m. 8. Correction for chronometer at 7 23 . . . —2 33.11 Correction for chronometer at 7 37 . . . —332.11 7 34 1 19 Interval 3 20.15 n A P. F. limbs in A. R. reduced to are . 21.07 A N. 8. limbs micr. in rev. . . . 0.934 = 18.20 Variation of A. R. in 3m. 2* — 3.00 Variation of declination in 3m. 20j. . . — 1.00 Observed P. F. diameter 18.07 C'orr. for diam. of micr. wires 9.20 Observed N. 8. diameter .... 15.00 h. m. m. s. h. m. t. Correction for chronometer at 8 25 . . . —332.22 Santiago sid. time 8. F 622 56.20 Correction for chronometer at 6 29 . . —2 32.22 8 37 4.33 4 8.13 M A P. F. limbs In A. R. reduced to are . . . 17.85 A N. 8. limbs micr. in rev. .... 0.885=17.25 3 73 Variation of declination in 4m 8* Observed P. F. diameter . . . . . . . 14.13 Corr. for diain. of micr. wires . . . — 9.20 13.80 h. m. „ h. m. A p at 7 20 . . . 0 02 A f at 8 22 n lu A , at 7 23 . . . 0.04 A t at 8 36 . 0.05 llM OPPOSITION OP MARS, 1861-62, JAM ART 13, 18»». | <**«. CbnNMiafter Urn* of tranatt. M ran of wire* Mirr. Planet— Star. Bar. Thermoa icten. A. B. a D. E. Aa. A*. Air. \V.|. - 9 •. m. b. m. a. R«T. n. a, Bcv. Incbea. . • X , Brmrt . . . 878 19.9 97.9 40.9 . 79997.73 +4.36 98.150 91.0 48.8 | Man . . . B.P. . 93.8 36.9 49.3 . 7 3D 36.93 4.99 +1 8.80 40.99 Thrr. alt. a BeaMl ... 978 1.3 14.0 96.7 , 7 39 14.06 4.31 59'. 7 4 Man . . . N.P. • • 9.0 91.7 34.3 • • 7 3391.67 5.81 1 7.67 1.50 Bar. r.-il. ,.. • K. , Bowl ... 978 33.9 46.1 98.8 . t 7 3448.13 4.921 WIM - .WO • Man . . . 8.P. • • 49.0 94.9 7.1 • • 7 39 94.93 4.901 1 8.40 0.68 T Bowl ... 978 . 9.9 18.1 30.8 . . 7 38 18.13 4.11 Man . N.P. 19.6 99.3 38.0 73999.30 5.73* 1 7.17 1.611 BoixH ... 978 7.0 90.0 39.5 7 41 19.83 3.93 16 Mara . . . 8.P. • • 15.9 98.0 40.5 • • 7 4997.90 4.871 1 8.07 0.94} 11 B««H ... 978 , . 46.8 99.9 19.0 , 7 43 59.43 3.93 Man . . . N.P. • • 93.3 6.0 18.5 • • 7 49 9.93 9.98 1 6.90 1.69 11 Beaaei . . . 978 t 19.0 94.9 37.0 . 7 47 94.50 3.80 14 Man . . . 8.P. • • 19.8 39.9 45.0 • • 7483343 4.69 1 7.93 0.89 19 Beaael. . . 978 . . 8.8 91.6 34.0 f > 7 90 31.47 3.73 16 c Man . . . N.P. • • 19.0 97.8 40.5 • • 7 91 97.77 5.55 1 6.30 1.89 17 Beaael ... 978 t t 19.7 98.3 41.9 . 7 53 98.40 3.66] 184 Man . . . 8.P. • • 93.0 39.6 48.3 • • 7 54 35.63 4.69 1 7.93 0.951 It Be~l. . . 978 . 94.9 6.9 19.5 . 7 96 6.87 3.59 » Man . . . N.P. • • 0.0 19.8 • 99.4 • • 7 97 19.73 5.541 1 5.86 1.991 n Beaael ... 978 . . 1.8 14.9 97.3 t t 8 1 14.53 3.331 99 Man . . . 8.P. • • 8.9 91.9° 34.0 • • 8 991.93 4.94 1 6.70 1.901 a Bend . . 978 . . 9.9 99.3 39.0 . 8 4 23.97 3.31 M Man . . N.P. • • 14.6 97.4 40.3 • • 8 597.43 5.99 1 5.16 1.98 M Bewl ... 978 t f 91.9 34.9 47.0 t 8 6 34.93 3.25 «• Man . . . 8.P. • • 40.6 93.3 • • 8 7 40.63 4.51 1 6.40 1.96 97 Bowl ... 978 . . 41.7 94.9 7.9 t t 8 8 54.47 3.191 " Man . . . N.P. • • 46.6 99.9 19.9 • • 8 999.90 5.37 1 9.03 9.171 m Baaad ... 978 . . 11.9 94.3 37.0 8 11 94.97 3.991 M Man . . . B.P. • • 17.5 30.4 43.0 • • 8 19 30.30 4.59 1 6.03 1.991 31 Beaael . . . 9T8 , . 34.6 47.9 0.3 f t 8 13 47.47 3.90 • Man . . . N.P. • • 39.6 99.3 9.0 • • 8 14 99.30 5.39 1 4.83 9.19 • Bwad ... 978 . , 98.3 11.0 93.8 8 16 11.03 3.19 * Man . . . 8.P. • • 4.0 16.8 99.9 • • ' 8 17 16.77 4.66 1 9.74 1.47 a Baanl ... 978 . 16.4 99.0 41.8 t t 8 18 99.07 3.90 " Man . . . N.P. • • 90.8 33.4 46.0 • • 8 19 33.40 9.48 1 4.33 9.98 «7 Baa** ... 978 . 99.0 34.8 47.9 89534.77 3.00 at* Man . . . 8.P. • • 97.0 39.8 99.9 • • 89639.77 4.56 I 9.00 1.56 n Beaatl ... 978 t t 35.5 48.3 1.0 . 897 48.97 3.03 4» Man . . . N.P. • • 39.3 99.1 4.7 • • 898 59.03 5.381 1 3 76 9.391 «'/ Bern! ... 978 f f 98.0 16.8 91.9 8 30 10.77 3.04 mam 91.0 44.4 • Man . . . B.P. • ' 9.6 19.4 «8.9 . . 8 31 15.40 4.99 1 4.63 1.55 41 Beaaal. . . 978 , . 10.6 93.3 36.0 . 83993.30 3.03 Ther. all. 58*. 0 14 Man . . . N.P. . . 14.6 98.8 39.9 . . 83396.77 9.931 1 3.47 9.501 10 33' F. 4* •*-.! ... 978 . 98.0 41.9 94.4 . 834 41.63 3.07 98.050 • 41 Man . . . 8.P. - ' 33.9 46.0 98.8 • • 8 19 46.10 +4.79 +1 4.47 +1.69 AT SANTIAGO DE CHILE. 125 JANUARY 13, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. Ad. Anrd. 1 i tttfacl. Chroaaneur tin* of iranut. Mean of wire.. Mier. Planet— Slar. Bar. I'M. I r- A. P c. D. 1 *•: At. Alr. Wet. Her. m. a. KtT. [•dan. • • 17 16 If M 91 94 97 98 31 31 39 31 34 35 31 37 38 38 40 41 43 44 45 m 47 48 49 M M 13 M M 57 M M •1 Band ... 978 • • • • 44.9 • • • • 7 9344.88 795 6.88 7 86 13.18 7 97 33.88 7 99 6.18 73097.88 7 33 91.96 73349.46 7 3450.78 7 36 19.88 73791.98 7 38 42.48 7 39 46.38 7 41 7.38 7 43 16.48 7 4336.18 7 45 13.78 7 46 33.38 7 47 33.48 7 4859.98 749 54.38 7 51 14.78 7 5398.48 7 63 47.48 7 55 34.78 75654.48 7 58 14.98 75833.78 8 097.98 8 1 46.86 8 948.18 8 4 6.56 6 5 3.88 8 693.48 8 8 17.08 8 935.78 8 10 37.48 8 11 56.78 8 13 0.98 8 14 17.48 8 15 96.08 8 16 44.58 8 17 38.68 8 18 56.38 8 90 10.58 8 91 29.38 +3.411 -7.151 +3.311 -6.351 +3.17 —7.97 +3.05 —6.471 +9.931 —7.49 +S.831 -6.67 +8.76 —7.59 +98S1 -6.77 +2.55 —7.65 +3.50 -6.801 +3.43 —7.681 +3.39 -6.86J +9.98 —7.75 +9.94 —6.851 +9.90 —7.74 +9.19 —6.99 +9.08 t.m +2.11 -6.83 +3.001 —7.76 +3.03 -6.88 + 1.85 —7.77 + 1.85 -6.861 +9.W —7.71 +1 89.10 1 90.80 1 91.70 1 90.50 1 91.50 1 90.50 1 31.00 1 19.70 1 90.50 1 19.50 1 90.40 1 19.00 1 19.70 1 18.80 1 19.70 1 18.40 1 19.50 1 18.70 1 19.30 1 17.90 1 18.50 1 17.70 +1 18.80 —10.57 8.67 10.44 9.531 10.351 9.491 10.38 9.391 10.90 9.30J 10.101 9.851 10.03 9.091 9.94 9.04 9.90 9.04 9.761 8.89 8.72 8.811 97.857 Ther. alt. ... I ,.''.'<„'" V. 37.855 58.5 53.7 Band ... 978 Man . . . N.P. • • • • 13.9 34.0 • • • • Band ... 978 Man . . . B.F. Band ... 978 Man . . . N.P. 6.9 . . . 97.9 23.0 49.5 • • , . Band ... 978 Man . . . 8.F. • • • • SO. 8 19.3 • • • • Beawl ... 978 Man . . . N.P. • • • • 93.0 49 5 • • Band ... 978 Man . . . B.F. 46.4 7.4 Benel ... 978 Man . . . N.P. Band ... 978 Man . . . B.F. Band ... 978 Man . . . N.P. Band ... 978 Man . . . 8.F. Bend ... 978 Man . . . N.P. Banrl ... 978 Man . . . B.F. Band ... 978 Man . . . N.P. ;: * * 16.5 39.9 19.8 33.3 33.5 * * • • • • • • S3.0 54.4 14.8 93.5 • • • • • • • • 47.5 34.8 S4.5 15.0 • • • • 33.8 Band ... 978 Man . . . 8.F. Band ... 978 Man . . . N.P. • • • • 97.3 47.0 48.9 • • • • 6.6 Band ... 978 Man . . . B.F. Band ... 978 Mar. . . . N.P. Band ... 978 Man • . . . B.F. Band ... 978 Man . . . N.P. Band ... 978 Man . . . 8.F. Band ... 978 Man . . . N.P. Band ... 978 Man . . . B.r. • • • • 4.0 93.5 17 1 • • • • • • • • 35.8 37.5 56.8 0 3 • • • • • • • • 17.5 96.1 44.6 38.7 S6.4 10.6 • • • • AT SANTIAGO DE CHILE. 127 JANUARY II. 1853— Contlnnerl. A Chronometer time of transit. Planet— Star. Thermometers. $ Object. A. B. c. D. E. A a. A A Air. Wet. o X 0. s. a. B. 8. b. in. s. Rev. III. 8. Rev. Inches. • • 63 Besset ... 878 . . 33.6 . 88333.58 +1.95 37.870 59.0 50.0 64 Mars . . N.P. 39.5 8 23 39.48 —6.84 +1 16.90 —8.79 Ther. att. 85 Bessel . . . 278 f f 32.8 t 8 34 33.78 +1.93 64°. 3 68 Mara . . . 8.F. 51.0 8 35 50.98 —7 65 1 18.20 9.58 Bar. red. 27.774 67 Bessel . . . 378 . . . , 43.4 . . . . 8 88 43.38 +1.94 68 Mare . . . N.P. • • • - 59.3 8 37 59.18 —6.78 1 16.80 8.73 69 Refuel ... 378 . . 57.4 , . 8 88 57.38 +1.961 70 Mara . . . 8.F. 15.3 8 30 15.18 —7.56^ 1 17.80 9.53 71 Bessel ... 378 19.7 8 31 19.68 +1.98 / 73 Mare . . . N.P. t 36.4 83336.38 +6.68J +1 16.70 -8.64^ Remarks. A superb night, and (tat is factory measures throughout. Results. h. m. «. m. 8. Rev. / // Mean S. F. . . Fourteen transit* . . 7 47 56.84 + 1 30.638 .... —10.185 . . . =3 18.51 Mean N. P. . . Fourteen transit! . . 7 50 36.41 + 1 19.400 .... - 9.290 . . . =3 1.48 h. m. m. s. h. m. s. Correction for chronometer at 7 48 . . . —8 37.30 . . 7 45 18.94 Correction for chronometer at 7 51 . . — 2 37. M . ' . 7 47 59.11 . . 2 40.17 H // A P. F. limbs in A. R. reduced to arc . . . 18.42 A N. S. limbs micr. in rev. * . . 0 895 — 17.03 Variation of A. R. in 3m. 40>. . . . . . — 3.52 Variation of declination in 2m. 40«. . — 0.80 Observed P. F. diameter . . 15.90 Corr. for diam. of micr. wires . . . — 2.30 14.44 h. m. H h. m. 11 A p at 7 45 . . . . . 0.18 A f at 7 47 .... 0.16 JANUARY 15, 1893. There being an error of 1° in the computation for the Ephemens, the star selected for the night was not found, and therefore there are no differ- ential measure). JANUARY 10, 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. ,A* Air. Wet. 8. 8. B. 8. B. h. m. B. Rev. m. B. Rev. Inches. • • ! Bewel ... 344 8.0 20.5 33.3 46.0 58.8 6 39 33.33 +3.67J 27.988 63.0 57.0 a Man . . . 8.F. 84.5 37.5 50.4 3.0 15.8 6 41 50.34 3.51 +2 16.92 -1.18, 3 4 S Bessel ... 344 Mars . . . N.P. Bessel ... 344 36.8 43.3 44.5 39.5 55.3 57.1 52.4 7.8 9.9 5.3 30.7 22.5 18.0 33.5 35.5 6 44 52.38 6 47 7.90 6 49 9.90 3.30 3.99 2.95J 3 15.58 0.31 Thrr. att. 67°. 9 Bar. red. to 32' F. 27.882 6 Mara . . 8.F. 0.5 13.5 36.3 39.0 51.8 6 51 26.22 +2.06J +2 16.33 -0.89 128 OPPOSITION OF MABS, 1861-62, JANUARY 10. 1 H5A— Contliinrd. a t 0«Je«. Chnmamtui u™« of uanrii. • Mean of win*. Micr. Planet— 8tar. Bar. '"'"• '•'-• A. B. C. D. 1 A* A i. Air. W.i. a. a. a. a. It h. a. a. Her. m. «. »e». Inchei. • • 7 Beeeel . . 344 18.8 89.8 49.5 55.9 8.0 6 55 43.48 +9.58 37.988 63.0 57.0 • Man . . . N.r. 31. » 44.5 57.0 8.8 98.5 6 57 57.08 9.59 +9 14.50 -0.06 1 10 n BewH ... 344 Mm . . . 8.F. •MM) . . 344 30.8 4S.5 59.0 43.0 58.5 11.0 55.7 11.9 94.8 8.5 94.0 37.5 91.3 36.8 50.4 6 59 55.74 7 9 11.98 7 4 84.68 8.3S» 1.55 3. 10J 9 15.48 0.801 Ther. an. 67'. 8 Bar. ml. i , :n r. • Mm . . . N.P. 13.9 98.0 ».8 51.4 4.9 7 638.79 9.18 9 14.06 +O.OTI 13 1 . 341 14.S 97.3 40.0 59.8 5.6 7 8 40.04 1.97 14 Mm . . . 8.F. 99.8 49.8 55.3 7.8 90.8 7 10 55.86 1.34 3 15.93 -fl.63 13 Beam ... 344 88.8 41.8 54.0 6.5 19.5 7 13 53.98 1.74 1C Man . . . N.P. 48.0 54.8 7.5 90.3 33.0 7 16 7.48 1.97 9 13.53 +0.93 17 BMMl ... 344 3S.« 45.5 58.3 11.0 93.7 7 17 58.93 1.56i 18 Man . . . 8.F. 47.0 59.8 18.5 95.3 38.3 7 90 13.58 0.98 3 14.38 — 0.57J U Be«Ml ... 344 45.4 58.0 10.7 93.8 36.5 7 99 10.84 1.48 » Man . . . N.F. 58.0 10.8 83.8 38.5 49.3 794 93.68 1.76 3 13.34 +0.34 11 < Beeed ... 344 ai.s 34.5 47.3 0.0 19.8 7 98 47.99 3.51 • Man . . . 8.P. 39.3 48.0 0.8 13.5 96.5 789 0.89 3.13i 3 13.60 -0.371 • Bowl ... 344 44.S 57.0 9.8 99.5 35.3 7 31 9.76 3.33| M Man . . . N.P. 96.3 9.9 91.9 34.8 47.3 73381.86 % 3.81| 3 13.10 +0.49 16 Bead ... 344 50.8 3.5 18.3 99.0 4B.O 7 35 16.39 3.18i M Man . . . 8.F. 4.5 18.3 99.3 49.0 55.0 7 37 99.49 3 13.10 -«.99t 17 B««l ... 344 39.0 41.7 54.5 7.3 90.9 73954.54 3.94 88- Man ... N.P. 40.5 53.5 8.3 18.0 31.7 7 49 6.80 3.90 3 11.66 +0.66 • Beuel ... 344 37.0 49.6 9.5 15.3 98.1 7 44 9.54 3.15) 30 Man . . . B.F. 48.5 9.3 15.3 98.0 40.8 746 15.18 9.98 3 13.64 —O.IT; 31 Beaeel ... 344 38. 5 51.3 4.9 17.0 99.8 7 48 4.16 3.03 :• Man . : . N.P. 48.5 9.4 15.3 97.9 40.6 7 50 15.14 3.83 9 10.98 +0.80 33 [:,„_, t 344 41.0 53.7 8.5 19.3 38.0 7 59 6.50 9.94 34 Man . . . 8.F. 58.8 5.4 18.3 31.0 44.0 7 54 18.96 9.97 3 11.78 0.03 as B«Ml ... 344 58.8 9.5 99.3 35.0 48.0 7 56 83.31 9.88 • Man . . . N.P. 7.4 80.3 33.0 45.6 58.5 75833.96 3.78J 9 10.64 Mq 17 BeeMl ... 344 51.3 8.8 99.0 34.6 47.5 8 091.93 9.80 38 Man . . . B.F. 7.5 80.5 33.3 48.3 58.8 8 8 33.98 9.87 9 11.36 0.17 39 Bevel ... 344 48.5 55.0 8.9 91.0 33.8 8 8 8.10 4.11 40 Man . . . N.P. 59.3 5.9 17.8 30.5 43.4 8 10 17.84 5. 14J 9 8.74 1.031 41 Beeeel ... 344 45.8 58.5 11.4 94.9 37.0 8 13 11.34 4.08 • Man . . . B.F. 58.4 9.1 99.0 34.8 47.5 8 14 31.94 4.85 9 10.80 0.18 43 Beenl ... 344 53.0 5.5 18.5 31.9 44.0 8 17 18.44 4.07 44 Man . . . N.P. 9.0 14.8 97.8 40.4 53.1 8 19 97.58 5.98J 9 9.14 1.3H I Beurl ... 344 41.5 55.4 8.0 91.0 33.8 891 8.14 4.11 87.983 58.5 54.7 4t 47 4B Man . . . B.F. 344 Man . . . N.P. 59.5 19.0 97.8 5.1 31.9 40.4 18.0 44.8 53.3 30.8 57.5 6.0 43.5 10.4 18.8 8 93 18.09 8 94 44.79 69653.99 4.55 4.10 +5.41 9 9.88 +9 8.50 0.44 +1.31 Ther. an. 66' .9 Bar. red. to 33° F. KM Tkcr* wui Remarks. I ladlttiacUfM at dcflniUon anil tremor in the motion of the object* M the commencement, which became leu and leu at each a Sharp and Meady. AT SANTIAGO DE CHILE. 129 JANUARY 10, 1853— Continued. Results. b. m. s. m. «. Rev. t it Mean S. P. . . Twelve transits ..73-2 49.37 + 2 13.435 .... —0.340 . . . = 0 6. 63 Mean N. P. . Twelve transits . . 7 37 45.80 + 2 11.938 .... +0.559 . . . = 0 10.89 h. m. m. s. h. m. 9. Correction for chronometer at 7 33 . . . — 2 43.97 7 30 5.40 Correction for chronometer at 7 38 • . . — 3 43. 9t) 7 35 1.62 4 5&.43 // it A P. F. limbs in A. R. reduced to arc . . . 22.45 A N. 8. limbs micr. in rev 0. 899=17.5-2 Variation of A. R. in 4m. 56s. . . . . . + 4.91 Variation of declination in 4m. 56s. . . — 1.48 Observed P. F. diameter .... . . . 17.54 Corr. for diameter of micr. wires . . — 2.20 13.84 h. m. r h. m. // A 0 a'. 7 29 . 0.01 A • at 7 34 0.01 JANUARY 17, 1858. | Chronometer time of transit. Planet— Star. Thermometers. S Vf a nf °r«a Micr. Bar. 1 Object. A. B. C. D. E. A* A(S. Air. Wet. 1 X P.... Rev I __}.._ O , 1 Kev. in. i* ti' if -. 1 Mara . . . B.F. 6.0 18.7 31.4 44.3 57.4 6 35 31.56 +3.93 27.940 64.2 58.2 9 II. C. . . . 17513 34.0 47.0 59.8 12.5 25.3 639S9.79 4.64 -428.16 —0.71 Ther. alt. 3 Mara . . . N.P. 35.0 47.8 0.5 13.3 96.3 6 43 0.96 3.931 68°. 8 4 H. C. . . . 17513 4.3 17.5 30.0 49.8 55.5 6 46 30.03 3.691 4 29.46 +0.24 Bar. red. to 3-2° F. 27.831 5 Mara . . . SF. 14.3 37.0 39.8 59.5 5.5 6 48 39.80 2.661 8 H. C. . . . 17513 49.8 95.7 8.5 91.4 34.3 6 53 8.54 3.221 4 28.74 —0.56 7 Man . . . N.P. 38.0 50.7 3.5 16.9 39.0 6 55 3.48 3.96 8 H. C. . . . 17513 8.3 31.3 34.0 46.8 59.5 6 5933.96 2.81 4 30.48 +0.45 9 Mare . . . B.F. 13.0 95.8 38.5 51.3 4.3 7 1 38.58 3.30 10 B.C. . . . 17513 43.5 99.9 8.3 31.0 34.0 7 6 8.36 3.48 4 29.68 —0.28 11 Mara . . . N.P. 46.5 59.3 13.0 94.7 37.5 7 8 19 00 8.77 19 H. C. . . . 17513 17.5 30.5 43.4 56.3 9.0 7 12 43.34 3.14 4 31.34 +0.63 13 Mara . . . S.F. S6.3 39.3 59.0 4.6 17.8 7 1451.98 1.74 14 H. 0. . . . 17513 56.5 9.5 33.8 35.4 48.3 7 19 93.46 1.811 430.48 —0.10} 15 Mara . . . N.P. 94.6 37.5 90.4 3.2 16.0 7 21 50.34 3.37 16 H. C. . . . 17513 • • 10.0 33.6 35.5 48.0 7 36 32.63 1.59 4 32.29 +0.78 17 Man . . . S.F. 15.5 38.4 41.3 54.0 6.8 7 38 41.20 1.191 18 H. C. . . . 17513 47.3 0.0 13.0 95.5 38.4 7 33 13.84 1.01} 4 31.64 0.18 II Mara . . . N.P. 56.5 9.3 93.0 34.7 47.5 7 3521.98 1.791 30 H. 0. . . . 17513 39.5 49.3 55.0 7.8 31.0 7 39 55.12 0.85 4 33.14 0.941 31 Mara . . . S.F. 99.9 5.8 18.5 81.3 44.3 7 42 18.48 3.66 33 H. C. . . . 17513 35.5 38.3 51.1 3.8 16.8 7 46 51.06 3.33 4 32.58 0.33 33 Mara . . . N.P. 15.9 97.9 40.6 53.3 6.0 7 48 40.60 4.38 94 H. C. . . . 17513 49.3 3.0 14.8 37.5 40.5 7 S3 14.80 3.061 4 34.20 1.311 39 Mare . . . S.F. 33.4 45.3 58.0 10.7 23.6 7 54 58.00 3.50 36 H. C. . . . 17513 5.7 18.6 31.5 44.3 57.0 7 5931.40 2.96 4 33.40 0.54 97 Mara . . . N.P. 3.7 16.5 39.4 42.3 55.0 8 1 29.36 4.351 96 H. C. . . . 17513 38.6 51.5 4.4 17.3 30.3 8 6 4.40 2.901 4 35.04 1.45 27.920 61.5 55.0 99 Mara . . . S.F. 43.3 55.0 7.6 30.4 33.5 2 8 7.74 3.53 Ther. att. 30 H. C. . . . 17513 16.9 39.5 43.9 54.6 7.6 8 13 42.08 2.77 4 34.34 0.76 66°. 7 Bar. red. 31 Mara . . . N.P. 99.9 13.3 25.0 37.6 90.5 8 14 24.98 4.43 to 32° F. 27.818 39 H. C. . . . 17513 35.3 48.0 0.8 13.5 96.5 8 19 0.83 +3.80 —4 35.84 +1.63 17 ISO OPPOSITION OF MABS, 1851-62, JAKl'ARY 11, lN3»-ConUnurd. Remarks. Well defined mad • toady throughout. Mru §. f. . . Euht ir.n.iu . Mru N. P. . . Ei|hi iranriu . h. ni. Correction fur chronometer at 7 49 . '.i. m. •. . . 7 91 50.99 . . 7 98 !B.9l m. •. . . — » 47.41 Jitsulti. m. «. Rev. — 431.197 . . . +0.019 . — 439.784 . . . +0.830 . Santiago rid. time 8. F / ft = 0 0.37 . . =018.19 b. m. •. . . 7 19 3.51 Correction for chruuomelrr at 7 26 . . . —8 47. 43 . . 7 85 35. 49 Interval . . 6 31.98 A P. F. limb, in A. R. reduced to «rc H . . . 83.95 A N. 8. limlm nnrr. In rev. . . . n . 0.911 — 17.75 Variation of A. R. in tm. 3*. . . ... — 8.51 1 99 . . 17 44 UbKrved N. 8. diameter .... . 13.63 h. m. // h. m. A pat 7 S3 . . it . . 0 09 JANUARY 18, Then were loo many cirri coiutanil) obscuring both tlic planet and «tar to permit observations with the equatorial, or to allow the comparing nar to be *ttm OB the meridian. JANUARY 19, There were too many cirri and loo much haze to »ce the comparing mar under any light. JA M Ml r id. 185!l. j C broaome tertime if tranii U Planet- •Star. Thermon letera. 1 Mean of wire.. Mil Bar 1 Object. A. B. C. D. E. Aa. AJ. Air. Wet. * - 6 Rev. Rev. Inches • • Z 1 Benel ... 344 99.8 8 45 99.78 : 1 '.' 97.953 65.0 58.5 a Man . . . 8.P. . . . . 99.7 . . . . 8 48 89.68 !*••** —4.47 +59.90 -6.99 Thir. ntt. 1 BeiMl ... 344 . . . . 96.8 . . t 9 6 4896.78 +9.9SJ 68'. 8 4 Mara . . . N.P. • . . . 94.8 • . . . 6 49 34.58 —3.85 57.80 6.11J Bar. red. to 32° F. 97.844 5 f ' • • • 344 . . . . 9K.5 . . 85096.48 +9.16J ( Mara . . . H.K. • • • • 95.8 • • ' • 6 51 95.78 — 4.7S 59.30 6.88J 7 BWM! ... 344 . . • • 39.0 . , . . 6 59 38.98 +9.07 8 Man . . . N.P. • • • • 38.8 • • ' • 8 5336.58 -3.93J 57.60 6.00J 9 BoMl. . . 344 . . . . 41.0 . . . , 8 54 40.98 +1.93 10 Man . . . U.K. • • • • 39.8 • • • • 65539.78 — 4.92J 58.80 6.851 11 B€«M| ... 344 . . , 51.9 B t . t 85851.18 +1.84 19 Mara . . . N.P. • • • • 48.8 • • • • 6 57 48.58 —4.13 57.40 5.97 13 Bwati ... 344 . . . 99.9 . . t t 65999.88 +1.73 14 Man . . . 8.F. 7 091.98 —5.044 58.40 6.77J 15 fend. . . 344 17.0 7 3 16.98 W.WIJ +1.47 w. . l| U Mara . . . N.P. • • • • 13.9 • • • • 7 4 13.88 —4.36 58.90 5.83 17 1 • • • 344 . t t 40.3 t . 7 6 40.98 +1.33» U Man . . . 8.P. • • • • 38.0 • • • • 7 7 37.98 -4.96* 57.70 6.60 19. B«Ml ... 344 * . t t 31.0 t f t t 7 930.98 + 1.30 M Mar. . . . N.P. 7 10 97.98 4 AUI 56.30 5 791 n B"- 1 . . :m 30.9 7 13 30.18 ».1»l +1.08 •*• '*¥ • Man . . . 8.P. 97 4 7 14 97.36 5t4j 57.90 6.49 t) •MM! ... 344 • • 39.4 7 IS 39.38 +3.49 M Man ... N.P. 1 ' • • 39.9 • • • • 7 1635.18 — 9.«7 +55.80 -5.69 AT SANTIAGO DE CHILE. 131 JASTCARY 30, 1 «v> < ,,ul iiiiii- 70 Bemel ... 344 Mare . . . 8.F. • • • • 34.1 31.1 • • 7 17 34.08 7 18 31.08 7 1931.48 7 SO 17.18 7 31 11.58 7 33 8.38 7 S3 34.58 7 34 30.08 73536.98 7 36 33.48 7S8 45.58 7 3941.58 7 3050.88 7 31 46.48 7 33 55.08 7 33 49.98 7 35 54.48 73850.38 737 51.38 7 38 45.98 7 39 44.98 7 40 40.48 7 41 25.58 7 43 19.98 7 43 15.28 7 44 10.58 7 44 58.88 7 45 53.56 7 46 43.38 7 47 37.28 7 48 25.88 7 49 18.76 750 13.58 7 51 7.38 7 51 53.98 7 53 47.48 7 54 17.98 7 55 13.48 7 55 59.68 7 56 53.58 7 57 40.48 7 5834.58 7 59 41.18 8 0 33.98 8 1 20.38 8 2 14.38 +3.39 —3.09 +3.33 —2.26 +3.271 —3.15 +3.17 —3.40 +3.08 —3.301 +3.91 — 2.561 +2.84 -3.43 +3.79 —3.631 +2.691 —3.54 +3.63 -2.71 +3.59 —3.56 +3.561 — 2.72J +2.511 —3.60 +3.48J -3.791 +3.45 —3.58 +3.431 —2.73 +3.391 —3.57 +2.40 -3.76 +3.36 —3.58 +2.281 -2.76 +2.28 —3.68 +2.27 —2.84 +2.22 —3.63 +57.00 55.70 56.80 55.50 '56.50 56.00 55.60 54.90 55.90 54.60 55.50 54.40 55.30 53.70 54.90 53.50 54.70 53.50 54.50 53.90 54.10 52.80 +53.90 —6.48 5.59 6.42} 5.57 6.361 5.471 6.37 5.491 6.331 5.33 6.15 5.29 6.111 5.31 6.03 5.161 5.961 5.16 5.94 5.041 5.94 5.11 —5.85 27.953 Thor. alt. 68°. 8 Bar. red. to32°F. 27.844 65.0 58.5 Bensel ... 344 Mars . . . N.P. 31.5 17 a Bernel ... 344 Mare . 8.F. • • • • 11.6 8 4 • • • • Benel ... 344 Mara . . N.P. Bewel ... 344 Man . S.P • • • • 34.6 30.1 37.0 • • • • Bemel ... 344 Mars . . . N.P. • • • • 45.6 41 6 • • • • Berael ... 344 Mara 8 F. • • • • 50.9 • • • • BeiMel ... 344 Man . . . N.P. Beuel ... 344 Mara S.P • • • • 55.1 50.0 54.5 • • • • BeMd ... 344 Man . . . N.P. • • 51.4 46 0 • • Benel ... 344 Man . . . 8.F. • • 45.0 40.5 • • • • Bern! ... 344 Mara . . . N.P. Bern! ... 344 Man . . . 8.F. • • • • 35.6 90.0 15.3 10.6 • • • • Bexel ... 344 Man . . . N.P. Fi.-.-l ... 344 Mara . . . 8.F. Be«el ... 344 Man . . . N.P. Besnel ... 344 Mars . . . 8.F. • • • • 53.6 43 4 • • • • • • • • 37.3 25.3 18.8 13 6 • • • • 7 3 Beoel ... 344 Mare . . . N.P. • • 54.0 • . • • Bemel ... 344 Man . . . 8.F. . . • • 18.0 13.5 • • • • B«Ml ... 344 Man . . . N.P. Beiwel ... 344 Man . . . 8.F. • • • • 59.7 53.6 40.5 34 6 • • • • Bewwl ... 344 Man . . . N.P. Bewrl ... 344 Man . . . 8.F. l • • 41.3 34.0 30.4 14 3 • • • • 132 OPPOSITION OF MARS, 1851-52, J VM \l IT HO. UUI-Contl nurd. i MM* Of wirr* Micr 1 A*. Air. A ri - 1 71 Br«rl ... 344 • • • • S6.8 • • 8 9 S6.-8 8 3 49.48 +9.96 —2.731 • +59.70 —4.09| 97.953 65.0 58.5 73 •7.5 8 18 97 48 +9.16 Thrr. all 60* 8 74 19.6 8 19 19.S8 — 3.34 59 10 5 52 Bar. red. 73 78 B«Ml ... 344 Man N.P • • • • 1.0 59.5 • • 8 91 0.98 8 9959.48 +9.984 —9.50 51.50 .; ln32* F. 97.844 77 78 B«ml ... 944 Man . . . B.K. i 344 • • • 43.0 34.0 96 8 • • • • 89941.98 8 93 33.98 8 94 96 78 +9.904 — 3.M +9 95 59.00 i.m Mara N f 17.8 - -. ;: H 9 41 51 00 4 66 81 8) 83 84 Bemtt ... 344 Mara . . . H.F. B«««l ... 344 Man . N P • • • • 48.0 40.9 49.8 40.5 8 96 47.98 897 40.18 8 98 49.78 8 39 40.48 +9.96 —3.90 +9.91 — 2..V.J 59.90 50.70 5.46 4 561 85 86 BMM| ... 344 Man . 8.F • • • • 94.9 15.5 • • 83094.18 8 31 15.48 +9.194 — 3.19J 51.30 5.39 87 Be»H ... 344 • • • • 6.8 57 5 • • • • 833 6.78 8 39 57 48 +9.96 ., .,, 50 70 4 594 89 M 91 aWel . . . 314 Man . . . 8.P. Bevel 314 • • 43.3 35.0 37 0 • • • • 83343.98 834 34.98 8 35 36 98 +9.384 —3.09 .••::• 51.70 5.374 99 Man . . N P 97 1 8 36 97 OB 9.194 50 10 4 441 93 M K '• •:- Bowl . . . 314 Man . . . 8.F. BfM. 1 ... 344 Man . . . N.P. B««Ml . 344 :; • • SI.O ii.'J 51.1 41.0 37 0 • • • • 837 50.88 83849.98 8 39 51.06 84040.98 8 41 36 98 +9.35 -9.94 +9.464 -1.984 . • • 51.30 49.90 5.99 4.45 (g Man . . . 8 F. 98.0 8 49 97 98 ' I 51.00 5.99 M* 100 BeaMl ... 344 Man . . . N.P. • • • • 90.5 • • • • 84390.48 8 44 9.98 +9.514 — 1.861 49.50 4.38 101 !«/ 103 |04 B«nl ... 344 Man . . . N.P. BMMl. . . 344 Man . . N.P • • • • 53.6 43.9 5S.9 44 5 • • • • 84753.58 8 48 43.18 051 55.18 8 59 44 48 +9.79 -1.614 +9.81 — 1.501 49.60 49 30 4.334 4 311 IOS B«Ml . . 344 S3 9 8 53 53 18 • : i. • IOC 107 Man . . . B.f. Bnnl . . 344 • • • * 43.0 58 3 • • • • 85449.98 8 55 58 98 -4.04J 4-1 1,11 49.80 5.07 108 109 110 Man . . N.P. ••Ml ... 344 Man . . . B.F. ' . . • • 47.0 9.3 59.3 . . . . 85646.98 858 9.98 8 58 59 98 -3.054 +1.90 —3.81 48.79 50.00 4.19 5.01 III 111 •MM! ... 344 Mara . . . N P • • • • • 57.6 46 4 . . • • 8 59 57.58 9 0 46 38 +1.98 g 87fJ 48 80 4 151 97.938 61.0 57.5 113 114 1 ' • 344 M.r. . . . B.f. • • 1.5 61 9 • • * • 9 9 1.48 9 9 51 18 +1.404 3 00 49 70 5 001 Thrr. an. H -.• iii ii« Man . . . N.P. • • • • 53.6 49.0 • • • . 9 353.48 9 4 41.98 + 1.414 -9.634 +48.50 -4.05 nm r 97.830 AT SANTIAGO DE CHILE. 133 .JAVV.VKY 2O, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. . V. D. E. A a. A ,5. Air. Wet. 8. 8. s. 8. H. h. m. s. Rev. s. Rev. Inches. • 0 117 118 119 [Jewel ... 344 Man S.F. • • 53.6 43.1 • • 9 5 53.58 9 6 43.08 9 16 0 48 +1.551 — 3.46J +2.05 +49.50 —5.02 27.938 61.0 57.5 Bessel ... 344 0.5 190 Man . . 8.F. • • 49.3 9 16 49.28 —2.71 +48.80 —4.76 Remarks. a During all the observations preceding this the planet was flaring in pulsations, as an image in disturbed quick- silver; the measures, however, are tolerably fair. t Steadier. c Better. d Not very steady. e Sharp and steady. / All the rest are good. Remits. h. m. 8. Mean S. F. . First eighteen transits . . 7 27 18.26 Mean N.P. . Fint eighteen transits . . 729-28.65 Mean N.P. . Last twelve transit* . .84259.10 Mean S. F. . Last twelve transit* . . 8 44 48.36 h. m. m. s. Correction for chronometer at 7 27 . . . — 255.12 Correction for chronometer at 7 29 . . . — 255.13 >. Rev. ' H + 56.414 .... —6.353 .... =2 3.8S 55.111 .... 5.487 .... 1 46.94 49.858 .... 4.400 .... 1 25.76 + 50.783 .... — 5.240 .... =141.73 h. m. s. Santiago sid. time S. F 73423.14 Santiago sid. time N. P 7 26 33.52 Interval ... 9 10.38 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 2m. 10.. . . . Observed P. F. diameter .... h. m. Correction for chronometer at 8 43 . Correction for chronometer at 8 45 . 20.00 - S.96 17.74 m. 8. -3 55.30 -2 55.30 A N. 8. limb micr. in rev . . . Variation of declination in 2m. 10s. Corr. for diam. of micr. wire* Observed N. S. diameter . . . Santiago sid. time N. P. Santiago sid. lime S. F. Interval 0.866 = 16.88 — 0.60 — 2.20 14.08 h. m. B. . 8 40 03.60 . 8 41 53.06 1 49.26 A P. F. limbs in A. R. reduced to arc Variation of A. R. in Im. 49>. . . . Observed P. F. diameter h. m. A 0 at 7 IM A p at 7 28 . . 11.87 . + 1.88 , 15.75 0.11 0.10 A N. S. limbs micr. in rev 0.820 = 15.98 Variation of declination in 1m. 49*. . — 0.52 Corr. for diam. of micr. wires ... — 2.20 Observed N. S. diameter .... 13.26 h. m. " A f at 8 40 0.08 A fiat 8 41 0.09 JANUARY 31, 1859. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A 1. Air. Wet. l. a. 8. a. •. h. m. -. Key. m. 8. Rev. Inches. t • 1 9 3 4 S 6 7 8 40.5 6 51 40.48 8 54 36.02 6 57 27.18 7 0 11.23 7 2 40.48 7 5 24.43 7 7 33.48 7 10 16.53 —3. 68| +4.89 —3.94 +5.601 —4.12 +5.54J — 4.34J +5.38 +2 45.54 3 44.05 2 43.95 +2 43.05 +8.571 9.54J 8.66J +9.62J 27.968 Ther. alt. 67°. 5 Bar. red. to 32° F. 27.863 59.0 57.5 Man . . . S.F. 0.5 13.0 26.0 27 3 38.8 51.8 Man . . . N.P. Washington . . . 58.4 11.3 40.5 24.0 Man . . . S.F. • • 11.5 24.5 33 5 37.3 Man . . . N.P. 4.0 16. t 29.0 • • 134 OPPOSITION OF MARS, 1851-52, JANVARY HI. IMa-Contlnurd. Remarks. Tfcn* U «o narh hatr that lh« ronpuiof Mar cannot b<- Men with TW DtoannUen «», Uwefore, discontinued. any satisfaction; and tin- planet, thoujli tolerably steady, » ba Rttvltt. b. m. a. m. i. R-'v. / f/ Mean 8. F. . Two trmn.it. . . . 6 59 55.23 4-9 44.745 .... 4-8.090 . . . . =948.00 Mean N. P. . . Two tnn.iu . . . 7 5.1S.88 + 3 43.550 .... + 9.5*5 . . . . =3 6.81 b. m. m. B. h. m. a. ft' f h o mrlrr at 7 0 — 3 58.96 . . . 6 56 56 96 C'orreclion for chiononi^lcr at 7 5 . • . — 9 58.27 . . . 7 3 15 61 ... 5 18 65 ii it A P. F. limbs in A. R. reduced to arc . . 17.93 A N. 8. limbs inirr. in r> v. . . . . 0.965=18.81 Variation of A. R. in 5m. 19. . — 5.54 Variation of declination in 5m. 19s. . . — 1.51 13.38 Corr. for diani. of micr. wires . . . . — 9.90 Observed N. 8. diameter . . . 15.10 h. m. it h. m. A » at 6 55 ... 0.18 A » at 7 1 0.19 JASTCART ; i. !-->:. 4 Chronometer time of transit. Planet — Star. *bennometen. - >] , ;i[[ 1 1] \\ i r<~~ Hicr Bar. | Object. A. B. C. D. E. A«. A t. Air. Wet. £ x Rev 1' ... Inches. • • I nev. ivcv. 1 Wellington . . . 49.5 3.5 15.5 98.1 41.3 7 9 15.38 +3.04 27.991 61.5 57.9 t Man . . . 8.F. IB. 5 35.3 48.0 0.5 13.8 7 11 48.03 7.151 +2 32.64 +4.114 3 W«.hin«nn 1.8 14.5 37.3 40.3 7 14 14.56 9.96 Thcr. alt. 4 Man . . . N.P. 90.3 33.9 46.0 58.5 11.3 7 16 45.86 7.94 3 31.30 4.99 68". 5 Bar. red. to 33= F. t Washington . . . 47.4 0.5 13.3 96.0 36.8 7 19 13.30 9.74 27.883 • Man . . . B.F. 19.5 33.4 45.9 58.0 11.0 7 91 46.99 6.99 932.03 4.18 7 Washington . . . 93.9 36.0 48.6 1.5 14.5 7 94 48.80 9.96J 8 Man . . . N.P. • • 6.5 19.3 33.0 45.0 7 97 19.38 7.42J 3 30.48 5.16 9 Washington . . . 34.3 47.0 0.0 19.8 95.8 7 39 59.96 9.10 10 Man . . . 8.F. 6.5 18.4 31.9 44.0 57.0 7 39 31.93 6.44J 931.94 4.344 U Wuhinfton . . . 10.3 93.1 36.0 46.8 1.7 7 34 35.98 1.93J U Man . . . N.P. ».8 69.8 6.7 18.5 31.3 737 5.09 7.851 999.64 5.39 II Wa*liln|toa . 0.5 13.9 96.0 39.0 7 39 13.96 1.86i M Man . . . 8.F. 18.0 31.0 43.6 56.4 9.4 7 41 43.68 6.35 9 30.49 4.384 15 Wa.hiiirt'in . . . 15.5 41.9 54.0 M 7 43 41.16 1.764 U Man . . . N.P. 44.5 57.3 10.3 93.0 35.7 7 46 10.16 7.96J 9 99.00 5.50 IT Washington . . . 47.5 1.9 13.8 96.5 39.6 7 48 13.79 1.73 U Man . . . 8.F. 18.0 31.0 43.7 56.5 9.5 7 60 43.74 6.39 9 30.03 4.66 M Washington . . . 87.3 40.0 83.8 6.6 18.5 76969.89 1.66 « Man . . . N.P. 55.5 8.4 91.3 34.0 47.0 7 55 91.93 7.99 9 98.40 6.66 II Washington . . . 6.7 19.7 34.5 45.4 68.3 7 56 39.53 1.61 .-: Man . . . 8F. 36.0 40.0 1.8 14.6 97.4 81 1.74 6.38 •J • • 4.77 • Washington . . . at .» 44.4 57.9 10.0 93.0 8 967.99 1.57 M Man . . . K.P. w.t 19.0 94.8 37.6 60.6 8 6 94.83 +7.98 f 9 97.60 +5.71 AT SANTIAGO DE CHILE. 135 JANUARY ;•;. 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A I. Air. Wet. 8. 8. s. 8. 8. h. m. s. Rev. m. B. Rev. Inches. 0 • 35 Washington . . . S3. 4 6.3 19.0 31.8 44.6 8 7 19.00 +1.55 27.991 61.5 57.3 36 Mars . . . 8.F. 31.6 34.8 47.5 0.3 13.4 8 9 47.52 6.49 +3 28.52 +4.94 27 38 39 Washington . . . Mara . . . N.P. Washington . . . 17.5 44.3 7.4 30.3 57.3 30.3 43.3 10.0 33.0 55.8 33.8 46.0 8.8 35.5 58.8 8 11 43.13 8 14 9.96 8 17 33.08 1.61 7.47 1.34 2 36.84 5.88 Ther. att. 68°. 5 Bar. red. to 32° F. 37.883 30a Mars . . . 8.F. 35.0 47.5 0.4 13.5 36.4 8 30 0.56 6.46 3 27.48 5.12 31 Washington . . . 38.5 41.3 54.3 7.0 30.0 8 31 54.33 1.41 32 a 33 34a Mars . . . N.P. Washington . . . 54.6 7.5 55.3 33.5 30.5 8.0 35.3 33.4 31.0 48.0 46.4 34.0 1.0 8 34 30.48 836 8.13 8 28 35.26 7.43 1.48 6.63 3 26.36 / 2 37.13 6.01 5.15 Mara . . . 8.F. 9.5 • Washington . . . 10.5 33.4 36.3 49.0 1.9 8 30 36.20 1.52 36a Mara . . . N.P. 36.0 49.0 3.0 14.6 37.5 8 33 1.83 7.63 2 35.62 6.11 37 Washington . . . 34.3 47.1 0.3 13.7 35.5 8 35 59.96 1.65 38 Man . . . 8.F. 0.8 13.5 36.5 39.3 53.3 8 38 36.48 6.94 336.52 5.39 39 Washington . . . 16.1 39.0 43.0 54.8 7.5 8 40 41.88 1.74. 40 b Mara . . . N.P. 41.3 54.0 6.7 19.5 32.5 8 43 6.78 8.0SJ 324.90 6.38 41 Washington . . . 13.3 36.0 39.0 51.8 5.0 8 45 39.00 —2.97 43 M»rs . . . 8.F. 39.0 53.0 4.8 17.5 30.4 8 48 4.74 H-3.44 3 35.74 5.41 43 Washington . . . 57.3 10.1 33.9 35.6 48.6 8 50 33.90 — 2.921 44a Man . . . N.P. 31.5 34.5 47.1 59.6 13.8 8 53 47.10 +3.43 3 34.30 6.35) 45 Washington . . . 41.0 54.0 6.8 19.5 33.5 8 55 6.76 — 2.75J 46 Mars . . . 8.F. 6.3 19.3 33.0 44.6 57.7 8 57 31.94 +3.87 325.18 5.62J 47 48 c Washington . . . Mara . . . N.P. 56.5 30.3 9.5 33.0 33.4 45.8 35.1 58.5 48.0 16.5 8 59 23.30 9 1 45.80 —3.63 +3.87 3 23.50 6.49 27.980 61.0 58.8 49 50c 51 53c Washington ... 5.3 39.6 15.7 38.4 18.3 43.5 38.5 51.4 31.0 55.3 41.5 4.1 44.0 8.3 54.9 17.0 9 4 18.31 9 6 42.53 9 838.56 9 10 51.38 —2.45 +3.39 —3.354 +4.38 2 24.31 +3 32.72 5.74 +6.63J Ther. att. 67°. 5 Bar. red. to 32° F. B.cn Mara . . . 8.F. 17.0 Mara . . . N.P. 35.5 Remarks. Unless when otherwise noted, the planet has generally been sharp and steady, and the measures very fair. The star does not appear so bright as any of Bessel'f 9lhs ; but from the faintnesB of the colored portions of Mars, there is evidently some haze, or my eye is over worked, a Tremulaiu. 6 Recorded 4. Ot. at wire B. c Fine. Mean 8. F. . . Thirteen transits . Mean N. P. . . Thirteen transits . h. m. h. m. s. . 8 9 54.05 . 8 14 28.47 m. 8. . . 3 0.94 Results. m. ». Rev. + 328.496 . . . +4.902 . + 326.958 . . . +5.845 . / H . . . =135.54 . . . =153.93 h. m. 8. . . . 8 6 53 11 Correction for chronometer at 8 14 . . . —3 0.95 Santiago sid. time N. P. ... . . . 8 11 27.53 . . . 4 34 41 A P. F. limbs in A. R. reduced to arc . Variation of A. R. in 4m. 34«. . . . . . 23.07 . . — 4.79 . . 18.38 A N. S. limbs micr. in rev. . . Variation of declination in 4m. 34f. n . . 0.943 = 18.38 . . — 1.23 . . 3 90 h. m. A flat 8 6 . . . . 0.09 h. m. A p at 8 10 . 0 . 0.11 Lftfl OPPOSITION OF MARS, 1851-52, J\ M Vlt r «. IM«. • C • • • • oftruai L Plaw*. -Star. i .,....., MMn. 1 Micr Bar 1 (*)•«. A. B. C. D. 1 44b At. Air. VV«. i j Rev. Bev. Incbr*. • • K n. n. •. Wa*»«IO. . 58.0 11.8 94.8 37.4 50.3 65594.89 +S.S91 H M i 84.0 58.1 Mm . . . 8.F. O.S 13.5 98.3 39.0 59.3 6 48 98. U —3.33 +3 1.70 -6.921 Thf r. att. WartiBfion . . . 14.0 88.8 3B.8 59.5 5.6 7 0 39.78 +3.38 69* .5 Mara . . . N.P. 14.3 «7.0 40.9 59.7 5.5 7 339.94 -9.651 3 0.18 6.031 Bar. red. to a i n.ta W«htafUM . . . 36.5 48.5 9.3 15.0 98.0 7 6 9.98 +3.19 Nut . . . B.F. 37.5 50.3 3.9 16.0 S9.0 7 9 3.90 -3.65 3 0.94 6.84 - WubiBflon . . . 33.5 48.4 59.3 19.0 95.0 7 11 59.94 +3.051 8 Man . . . N.P. 33.il 46.1 59.0 11.7 94.6 7 14 58.93 -9.841 9 59.68 5.90 • Wubinfton . . . 33.6 46.5 59.5 19.4 95.3 7 17 59.48 +S.83 10 Mm . . . 8.F. 33.8 45.7 59.5 l-J.:< 95.5 79059.56 —3.87 3 0.10 6.70 11 \Va.hinflon . . . 43.0 55.9 8.8 91.4 34.6 7 93 8.70 u Man . . . N.P. 41.7 54.5 7.4 90.1 33.9 798 7.38 —3.14 958.68 5.76 13 VVa.lnnron . . . 41. 5 54.4 7.9 90.0 33.0 798 7.99 +9.40 14 Man . . . 8.F. 40.8 53.5 6.5 19.9 39.3 7 31 6.46 —4.19 959.94 6.59 II Waibinfton . . . 90.8 3.5 16.4 99.4 43.5 7 33 16.59 +9.94 U Man . . . N.P. 48.5 1.4 14.5 97.9 40.3 7 X 14.36 -3.33 9 57.81 5.57 17 Wa»btn|ton . . . 45.5 58.9 11.0 94.3 37.0 738 11.90 +9.07 18 Man . . . 8.F. 44.0 57.0 9.8 93.5 35.5 7 41 9.76 —4.99 958.56 6.36 • U WMbtafton . . . 2J.5 . . 48.4 , . 14.3 7 43 48.39 +9.05 » Man . . . N.P. 19.5 33.4 45.3 58.0 11.0 74645.94 -3.39 958.85 5.44 II WuUapon . . . 53.0 5.9 18.8 31.6 44.6 7 49 18.78 +1.98 B Man . . . 8.F. 51.0 3.6 16.5 39.3 49.3 7 59 16.54 —4.96 957.76 6.94 S3 W».hinron . . . 57.8 10.7 93.6 36.5 49.5 7 54 93.63 +1.901 M Man . . . N.P. 54.0 8.8 19.8 33.4 45.4 7 57 19.64 — 3.401 956.09 5.31 95 Wuhinglon . . . 55.0 7.8 90.7 33.5 46.5 75990.70 +1.86 98 Man . . . 8.F. S8.o 4.8 17.5 30.5 43.5 8 9 17.66 —4.94 956.98 6.10 «7 WadiiBiton . . . 11.11 94.4 37.4 50.3 3.4 4 37.49 +1.84 98 « Man . . . N.P. 7.0 90.9 33.0 45.7 58.5 7 33.88 -3.30 9 55.46 5.14 » Wartlnfton . . . 51.5 4.5 17.4 30.3 43.4 10 17.49 +1.83 30 Mara . . . 8.F. 48.0 0.7 13.5 98.3 39.4 13 13.58 —4.09 958.16 5.93 31 WariUBfton . . . 45.5 58.4 11.3 94.0 37.0 IS 11.94 +1.88* » Man . . . N.P. 40.3 53.9 6.1 18.6 31.5 18 5.9< -J.llt 9 54.70 5.00 S3 WMbtBfton . . . 3.9 18.9 99.0 41.7 54.6 89098.94 + 1.90 14 Man . . . 8.P. 68.7 11.5 94.5 37.9 50.9 8 93 94.49 —3.88 955.48 5.78 a Wublnfton . . . 14.7 97.8 40.5 53.4 6.5 89540.54 +1.97 38 Man . . . N.P. 8.5 91.4 34.3 47.9 0.9 89834.33 -9.99 9 53.78 4.89 17 Wa.b!nfU» . . . 34.3 47.9 0.0 19.8 98.0 8 31 0.08 +0.99 It Man . . . 8.F 99.0 54 7 7.5 90.5 8 33 54.70 ^t35 0 »4 |U 5.64 » r _• . .•, 10.8 33.6 46.4 59.5 19.3 8 35 46.33 +1.08 '< t 40 Man . . . N.P. 14.0 98.8 39.6 59.5 5.5 8 38 39.66 —3.571 953.36 4.651 41 VV».l,,nrt«n . . . 44.5 57.4 10.3 93.9 38.0 8 41 10.98 +1.93J « Man . . . 8.F. 38.5 51.4 4.3 18.0 30.3 8 44 4.50 —4.98 954.93 5.511 43 W_» • •HMfWJV • • « 88.0 38.8 51.5 4.5 17.5 84851.66 +1.50J 44 Man . . . N.P. 18.1 31.0 43.7 58.8 9.6 8 51 43.88 -3.19 1 |.M 4.891 41 Wuhioctnn . . . 37.8 59.3 3.3 16.9 99.9 8 55 3.30 +1.63 4* Man . . . B.F. «*.5 43.9 18. • 8.8 91.8 86756 06 -3.651 +959.78 -5.»1 AT SANTIAGO DE CHILK. 137 JANUARY 33, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A* Air. Wet. s. 8. s. s. s. h. m. s. Rev. m. s. Rev. Inches. • a 47 Washington . . . 31.5 44.6 57.5 10.2 33.3 8 59 57.40 +1.87 28.050 60.7 56.0 48 Mare . . . N.P. 33.0 36.0 48.8 1.6 14.5 9 3 48.78 —2.501 +2 51.38 —4.371 48 50 H Washington . . . Mars . . . 8.F. Washington . . . 33.4 25.5 11.5 46.3 38.3 34.4 59.1 51.0 37.3 13.0 3.8 50.3 34.8 17.0 3.3 9 6 59.10 9 9 51.13 9 11 37.32 +2.04 -3.071 +2.301 2 52.02 5.111 Trier, att 67°. 5 Bar. red. to 32° F. 27.945 53 Mars . . . N.P. 2.0 14.9 37.8 40.6 53.5 9 14 27.76 —1.96 +2 50.44 -4.261 Remarks. Objects a tittle blurred and tremulous at times, but throughout the measures have been satisfactory. The star is certainly very small for an 8th, .and its difference of declination is scarcely more than half what it ought to be by the Ephemeris. However, the Washington observations were only approximate. There is no other star corresponding near so well. a Fine. Results. h. m. i. m. >. Rev. / a Mean 8. F. . . Thirteen transits ..82 54.15 + 2 56.965 .... 6.073 . . . . —1 58.34 Mean N. P. . . Thirteen transits ..88 13.75 + 355.428 .... 5.131 . . . . —1 40.00 h. m. m. •. h. m. a. Correction for chronometer at 8 3 . . 3 4.31 7 59 49.84 C ecionforchroncmeeralS 8 3 4.32 8 5 9.43 . . 5 19.59 H A P. F. limbs in A. R. reduced to arc . . . 33.05 A N. 8. limbs inicr. in rev . 0.941 = 18.34 Variation of A. R. in 5m. 20«. . . . ... — 5.60 Variation of declination in 5m. 20*. . — 1.40 Observed P. F. diameter .... . . . 17.45 Corr. for diam. of micr. wires . . . — 3.20 14.74 h. m. it b. m. // A » at 7 58 . . 0.13 A f at 8 4 . . 0.10 JABTUARY M, 1 - '. :. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — 3 tar. Bar. Thermometers. A. B. C. D. E. An. A 55.48 +10.61 —11.011 +10.39 —19.09 + 10.27 + 10.11 —13.33 + 9.65 —11.731 + 9.571 —13.731 +9.371 —11.83 +9.381 —13.84 + 9.29 —11.98 + 9.131 —13.93 + 9.101 -11.98 + 9.08 -13.97 + 9.06 —12.031 + 9.03 -13.98 +10.19 —10.781 + 10.10 —11.83 +10.09 1MB +10.03 -11.74 + 9.411 -11.371 + 9.49 —19.301 + 9.49 —11.301 + 9.45 -19.11 + 9.501 —19.03 +1 7.50 1 8.50 1 7.00 1 7.70 1 6.30 1 7.40 1 5.60 1 6.70 1 5.50 1 6.80 1 5.60 1 6.00 1 4.80 1 5.70 1 4.00 1 5.50 1 4.00 1 4.80 1 9.80 1 4.00 1 9.50 1 3.50 +1 4.00 M • . 93.48 91.501 93.44 91.381 33.31 21.901 93.321 91.97 99061 91.081 •MB 91.081 93.11 90.971 91.99 90.91 91.77 90.79 91.621 90.681 91.56 -21.531 98.009 Ther alt 69'. 0 Bar. red. 10 32° F. 97.900 65.0 58.4 BeaaH ... 344 Man . . . 8.P. B 71 80 81 82 83 84 -:, 86 87 88 89 90 91 • Bessel ... 344 Mare . . . N.P. • ' • • 8 23 3.78 8 24 5.58 8 35 40.18 836 42.08 8 39 35.58 8 30 37.98 8 33 43.98 8 33 45.18 8 3533.38 8 36 33.98 8 37 54.88 838 55.48 8 40 37.48 8 41 39.48 8 43 35.98 8 44 36.48 8 46 17.48 8 47 19.08 8 48 41.48 8 49 41.38 8 51 35.48 8 52 37.18 8 58 4.48 8 57 3.98 8 59 1.58 9 0 1.98 9 1 36.48 9 3 35.48 9 4 45.98 9 5 46.38 9 7 53.48 9 8 51.98 9 10 6.98 9 11 6.98 9 13 35.98 9 13 34.38 + 9.481 —11.05 + 9.55 —11.04 + 9.50 —11.90 + 9.54 —10.85 + 9.581 —11.62 + 9.68 — 10.721 + 9.72 —11.48 + 9.78 _10.;.H + 9.86 —11.371 : n.l'.v —10.35 +10.011 —11.031 + 10.90 — 9.941 +10.311 -10.71 +10.43 — 9.63] +10.53 — 10.36J + 10.73 — 9.331 +10.83 —10.00 + 10.95} — 8.99 +1 1.80 1 1.90 1 2.40 1 1.20 / 1 1.60 1 1.30 1 3.00 1 0.50 1 1.60 0 59.90 1 1.70 0 59.50 1 0.40 0 59.00 1 0.40 0 58.50 1 0.00 +058.30 —20.534 30.59 31.40 20.39 21.201 20.401 21.20 20.31 21.131 30.201 21.05 30.141 21.021 20.061 20.891 19.961 30.83 —19.941 28.000 Ther. att. 68°. 0 BUT. red. to 33° F. 27.993 59.2 58.0 Bess«l ... 344 Mars . . . N.P. • • 40.9 42.1 • • • ' Bcsscl ... 344 Mara . . . 8.F. Betsel ... 344 Mare . . N.P. Besscl ... 344 Mais . . . S.F. 35 6 • • • • 38.0 44.0 45.3 • • • • 34 0 Bcsscl ... 344 Mars . . . N.P. • • • • 54.3 • • Betsel ... 344 Man . . . S.F. P.I--.-I ... 344 Mare . . . N P. • • • • 37.5 39.5 36.0 • • BesMl ... 344 Mare . . . 8.F. 19 1 Bes»el ... 3*4 Mars . . . N.P. Bessel ... 344 Mare . . . 8.F. • • • • 35.5 27 3 • • • • 1!.--' 1 ... 344 Mara . . N.P. • • • • 4.5 • • • . Bcwcl ... 344 Mar* . . . 8.F. 1 6 9 0 Bessel ... 344 Mare . . . N.P. • ' 36.5 35 5 • • • • Bessel ... 344 Mare . . . 8.F. 46 0 Beiscl ... 344 Mara . . . N.P. Besscl ... 344 Mare . . . 8.F. • • 53.5 53.0 7.0 7 0 • • • • Bcssel ...:il! Mare . . . N.P. • • • . 36.0 34.3 . . Remarks. At the commencement and during the first hour, the images were quite blurred and unsteady; but afterwards extremely sharp and their motions equable. The great difference of Dec. of the objects and small difference of A. R. required such a rapid movement of the micrometer screw, that the measures are not very satisfactory. There is, no doubt, some parallax also. Mean 8 .F. . Twenty-three transits . Mean N. P. . Twenty-three transits . Results. h. m. s. m. s. Rev. / n . 8 3 59.47 + 1 4.739 . . . —21.771 . ... =7 4.33 . 8 7 50.58 + 1 3.200 . . . -20.837 . ... ^6 46.11 140 OPPOSITION OF MARS, 1851-52, JVM Ufl H, Jl, suits — Continued. k. m. ranMtfcm (he rhnMMMaeur at 8 4 ... —3 CamctfcNi fer ekroMNMIcr at 8 8 ... —3 A P. F. lUnW In A. 1. rrducrd to are . . . i a. 6.99 6.W u 4.09 19.06 0.40 ftantlafo »id time for 8 F . . , h. m. a. ..80 59.48 ..84 43.59 . . 351.11 & N. 8. limb* inirr. in rt v VnrialHm of dfclinanon in 3m. 51t. Cnrr. for diaro. of niicr. wire* . (Mwenred N. S. diameter . . . . li. in. it . 0.934=18.91 . . — 0.90 — 9.90 -15.09 .... 0.38 k. m. JANUARY as, issa. 1 i Object. Chronometer lime of transit. Meanofwim Micr. Planel — Bur. Bar. r:nT in' I'T- A. B. C. D. E. A*. tt Air. w,, b. m. a. Her. a. Rev. Inchen. • • If 9 3 4 S • 7 a 9 10 11 19 13 M li 18 17 le 19 99 91 99 93 94 96 91 97 H 9* • 11 • m M M«n . . . 8.F. BCMCI ... 344 • • • • sa.o 93.5 95 5 • • • • 6 47 51.96 6 48 S3.48 6 50 9S.48 6 50 58.48 65330.38 6 53 59.98 6 55 13.48 6 55 46. SB 6 57 46.48 6 58 18.48 6 59 40.38 7 0 13.48 7 9 14.38 7 9 46.68 7 3 44.48 7 4 17.96 7 5 47.18 7 6 19.98 7 721.58 7 755.48 7 10 4.56 7 10 37.68 7 11 49.98 7 19 17.18 7 13 14.78 7 13 47.98 7 IS 0.88 7 15 35.48 7 16 39.48 7 17 5.48 7 18 38.78 7 19 13.48 7 93 7.98 7 93 41.98 -7.561 3.56 6.751 3.66 7.64 3.76 6.65 3.87 7.89 4.01 6.97J 4.06 7.91 4.131 7.07 4.91 8.03 4.31 7.191 4.39 8.03 4.3BJ 7.90 4.43 6.19 4.47 7.31 4.61 8.98 4.67 7.39 4.73J 8.46 —4.91 —31.50 33.00 31.90 33.10 39.00 33.10 39.40 33.50 39.80 33.90 32.90 34.90 33.90 34.60 33.00 34.70 -34.00 -1.001 3.071 3.86 9.98 3.81 9.911 3.771 9.86 3.79 9.901 3.641 9.77 3.65 9.70 3.61 9.651 —3.55 -:-.."..-. Thrr. an 68'.8 Bar. red. to 33' F. 17.891 63.0 58.0 Bnttl ... 344 Man 8 P • • • • 68.5 90 4 • • • • Bend ... 344 Man . . . N.P. 59 3 13.5 B«««l ... 344 Mara . . . 8.F. • • • • 46.C 46.5 • • • • Bnwl ... 344 Man . . . N.P. • • • • 18.5 40.4 • • • • BOM! ... 344 Man . . . 8.F. B«Md . . . 344 Man . . . N.P 13 5 • • • • 14.3 46.7 • • 44. & Br-cl ... 344 Man . . . B.F. BOM! ... 344 Man . . . N.P. • • • • 18.0 47.9 90.0 91 .( • • • • B«Ml ... 314 Man . . . 8.F. •••Ml . . . 344 Man . . . N.P. BOM! ... 344 Man . . . B.F. • • • • 55.5 4.6 37.5 43.0 17.-1 14.8 • • • • B*Ml . . . 344 Man . . . N.P. ••Ml ... 944 Man . . . B.F. • • • • 48.0 O.C 35.5 39.5 • • • • ••Ml . . . 344 Man . . . N.P. • • • • 5.5 • • • • . Man . . . H K. • • • • 13.5 8.0 • • • • •Wri ... 344 • • • • 49.0 • • • • AT SANTIAGO DE CHILE. 141 JANUARY 35, 1853— Continued. i No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Slar. Bar. Thermometers. A. B. C. D. E. A s. A A Air. Wet. 8. a. a. s. s. h. m. s. Rev. s. Rev. Inches. • 0 35 at 37 38 39 40 4U 42 43 44 45 46 47 c 48 49 50 51 99 534 54 55 56 57 £8 a 60 (1 ca 63 64 «5 66 87 68 Mare N.P. 4.7 7 25 4.68 7 25 40.18 726 39.98 7 27 14.28 7 28 16.48 7 28 51.98 7 30 57.48 7 31 31.98 7 33 33.48 7 33 9.18 7 34 3.68 7 34 38.28 7 35 31.18 736 7.38 7 37 35 68 7 38 10.58 7 39 15.58 7 39 52.08 7 40 S3. 38 7 41 28.58 7 43 25.58 7 43 2.18 7 44 5.68 7 44 41.18 7 45 33.68 7 48 9.28 7 47 28.58 7 48 4.48 7 48 45.48 7 49 32.48 7 50 3.18 7 SO 38.98 7 51 31.58 7 51 5B.98 — 7.531 4.96* 8.46 5.05 7.61 5.09 8.49 5.13 7.68 5.23 8.61 5.19 7.65 5.231 8.61 5.24 7.72 5.30| 8.59 5.381 7.73 5.37 8.631 5.49 7.78 5.39 8.63| 5.43 7.78 5.471 8.69| 5.49 7.751 —5.51 —35.50 34.30 35.50 34.50 / 35.70 34.60 36.10 34.90 36.50 35.90 36.60 35.50 36.60 35.90 37.00 35.80 —37.40 -2.57 3.41 2.53 3.36 2.45 3.49 9.411 3.37 3.411 3.901 3.36 3.211 2.37 3.191 2.301 3.201 — 2.24J 27.996 Ther. att. 66. °0 Bar. red. to32°F. 27.895 61.0 58.5 Bessel ... 344 Mars . . S.F. 40 2 40.0 Bessel ... 344 Mare . . . N.P. Bessel ... 344 Mars . . . S.P. • • • • 14.3 16.5 53.0 57.5 • • • • Bessel ... 344 Mars . . . N.P. Bessel ... 344 Man . . . S.F. Bessel ... 344 Mars . . . N.P. Bessel ... 344 Mars . . . 8 P. . • • 32.0 33.5 9.2 3.7 38.3 31 .9 7.3 35.7 '.» • • Bessel ... 344 Mars . . . N.P. 10 6 15.6 Bessel ... 344 Mara . S.F. 53 1 53 4 Bes«el ... 344 Mars . . . N.P. Bessel ... 344 Mara . . . S.F. . . . . 96.8 95.6 2 9 . . . . 5.7 Bessel ... 344 Mars . . . N.P. • • • • II. -J 32.7 • • • • Bessel . . 344 Mars . . . 8 F. 9 3 28 8 Bes«l ... 344 Mars . . . N.P. • • • • 4.S 45.5 • • • • Bessel ... 344 Mars . . . S.F. • • 93.5 3 2 • • Bessel ... 344 Mars . . . N P. • • • • 39.0 21 8 • • • • l!---i-l ... 344 59.0 Remarks. a During the flrst twenty observations, Hie objects were ill-defined and unsteady. b Sharp, but -till unsteady, c Very fair. Results. ru m. s. s. Rev. / » Mean S.F. . . Seventeen transit* . . 7 21 16.93 -33.788 -3.529 . . . = 1 8.78 Mean N.P. . . Seventeen transit* , . 7 22 58.51 -33.118 —2.560 . . . = 0 49. B9 142 ori'osmoN OF MABS, 1851 .1 \\CAHY 83, 185*— CoaUnmcA. Retulls — Continued. h. MI. CamctrM tot ebronoowli-r at 7 91 . I'otrmioa Igr ckraMMieter at 7 33 . A f. P. limb* in A. R. rrdurrtl to are Variation ol' A R. in 1m. £b. . . in. - . . — 3 9.55 . . — 3 9.54 SJ . . . 19.95 ... — 1.78 li. m. i. 7 18 7 38 7 IB 48 96 1 41.96 A N. 8. limbs mirr. in rev Vurintion ul' ilfi-liuation ill 1m. 4if. I'nrr. for diara. of micr. wires . . . Observed N. 8. diameter n 0.989 = 16.80 — 0.43 — 9.30 16.97 u . . . 0.05 . . 10.17 h. MI. it , . 0.07 h. m. JANUARY 36, i -'. ;. Thrre u no rtar in the place assigned to that in the F.phemeris. The nearest one to it ia a Mar of the 14th or 15th magnitude, (just v i>il>N,) which u about 1&. farther ciul and 30 " north. Ol' course, it would nut bear illumination, and no observations were attempted. JANUARY •:;. i --.-;. No. for rfittoranct* Obj«t. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A 0. Ai. Air. Wet. Rev. m. a. Rer. Inches. • • : Man . . . 9.F. 9.5 15.5 98.9 41.0 54.0 6 7 98.94 -3.83 98.000 67.5 59.5 I Washington . . . 1.8.5 91.8 34.5 47.4 0.5 6 10 34.54 +3.41 —3 6.30 -7.23 1 i Man . . . N.P. Washington . . . Man . . . 8.F. 93.5 31.5 99.9 36.3 44.4 49.9 49.9 57.3 55.0 90.0 10.0 7.6 15.0 33.0 30.7 6 19 49.30 6 15 57.34 6 17 01.91 -3.42 +3.00 —4.58 3 8.04 6.43 Ther. an. 70°. 4 Rnr. red. to 33- P. 27.886 6 Waibiugtnn . . . 36.5 49.5 9.3 15.0 38.0 6 31 3.36 +9.6*1 3 7.32 7.18} 7 Man . . . N.P. 34.6 47.6 0.3 13.0 96.3 6 33 0.36 —4.05 8 Washington . . . 43.S 56.5 9.5 99.5 34.0 696 9.90 +3.19 3 8.84 6.24 Man . . . HP. 4.6 17.5 30.3 43.9 56.9 6 98 30.36 —5.97 10 Wa,bmgton . . . 19.5 95.5 38.5 51.0 4.0 6 31 38.30 +1.69 3 7.94 6.96 11 Man . . . N.P. 37.3 50.9 3.0 15.6 98.7 6 34 3.00 —4.73 U Washington . . . 46.5 59.6 19.5 95.4 38.5 6 37 13.50 + 1.36 3 9. SO 6.09 13. Man . . . 8.F. 59.3 19.5 95.6 38.4 51.6 63995.48 -5.83 14 Washington . . . 8.5 91.5 34.4 47.3 ' ..' 6 43 34.38 +1.09 3 8.90 6.85 151 Man . . . N.P. 49.6 9.5 15.5 38.6 41.5 6 57 15.54 -1.831 U Washington . . . 1.0 14.0 96.8 39.7 59.6 7 0 36.83 +4.03 3 11.38 5.86| 17 Mara . . . S.F. 49. 6 6.7 18.6 31.5 44.6 7 9 18.64 —2.92 16 Washington . . . 3.9 16.5 99.4 42.0 55.0 7 5 99.23 +3.60J 3 10.58 6.52, 19 Man . . . N.P. 10.6 93.5 36.3 49.3 9.9 7 7 36.38 —2.30) » Washington . . . 99.5 35.4 46.4 1.5 14.3 7 10 48.43 +3.41 3 19.04 5.71J II Man . . . 8.F. 18.6 31.6 45.0 57.9 10.5 7 13 44.58 — 3.31 J • Washington . . . 30.0 43.0 55.6 8.6 91.6 7 15 55.76 +3.2J 3 11.18 6.431 • Man. . . . N.P. 90.6 33.5 46.7 59.3 11.0 7 17 46.49 —2.50 M Wa.hiMj1.in . . . •J 46.9 59.0 11.8 95.0 79059.04 +3.09 3 13.63 6.59 » Man . . . 8.F. «6.0 36.0 51.0 3.7 16.8 7 9950.90 -3.49J M Wa.hinftiw . . . 37.0 49.9 9.7 15.5 98.6 7 96 9.73 1 '•! 3 11.83 6.36J m m Man . . . N.P. 31.0 44.6 44.9 57.4 66.7 10.5 9.5 93.6 36.4 7 96 56.74 7 39 10.44 +9.76J -0 13.70 —5.43 AT SANTIAGO DE CHILE. 143 JANUARY 37, 1853— Continued. i V Chronometer time of transit. Planet— Star. Thermometers c Micr. Bar. 8 Object. A. B. C. D. E. A a. A I. Air. Wet. £ | 6 8. 8. 8. s. B. h. in. s. Rev. m. s. Rev. Inches. 0 f 29 Mars . . . S.F. 10.5 23.3 36.3 49.0 2.0 7 34 36.22 —3.57 27.984 60.5 57.0 30 Washington . . . 23.1 36.2 49.0 2.0 15.0 7 37 49.06 +2.644 -3 12.84 —6.214 Ther. att. 31 c Mars . . . N.P. 33.7 46.7 59.7 12.5 25.4 7 43 59.60 —2.80 69°. 4 33 1.5 14.3 27.3 40.1 7 47 14.30 +2.484 3 14.70 5.284 Bar. red. to 31' f. 27.873 33 Mara . . . S.F. 55.6 8.8 21.6 34.6 47.7 7 49 21.66 —3.584 34 Washington . . . 10.0 22.7 35.9 48.6 1.5 7 52 35.74 +2.42 3 14.08 6.004 35 Mars . . . N.P. 25.2 38.0 51.0 3.8 16.8 7 55 50.96 —2.79 36 Washington . 53.6 6.6 19.4 32.3 7 59 6.50 +2.34 3 15.54 5.13 t)t Mare . . . S.F. 13.5 26.4 39.2 53.0 5.3 8 1 39.28 I • —3.50 38 Washington . . . 28.1 41.2 54.1 7.0 20.0 8 4 54.08 +2.324 srlso 5.824 39 Mare . . . N.P. 29.6 43.6 55.5 8.2 21.2 8 6 55.42 —2.64 40 Washington . . . 46.0 58.8 11.8 34.6 37.5 8 10 11.74 +2.37 3 16.32 5.01 41 Mara . . . S.F. 5.6 18.7 31.5 44.3 57.8 8 14 31.46 -3.30 42 Washington . . . 31.5 34.4 47.4 0.3 13.0 8 17 47.30 +2.40 3 I.-...--1 5.70 43 Mare . . . N.P. 10.5 23.4 36.4 49.3 2.1 8 19 36.33 -3.46 44 Washington . . . 27.6 40.6 53.5 6.4 19.3 8 22 53.48 +2.40 3 17.16 4.86 45 Mara . . . S.P. 38.0 51.0 4.0 16.6 29.8 8 25 3.88 —3.104 46 Washington . . . 54.5 7.5 30.4 33.3 46.3 8 3820.40 +3.464 3 16.53 5.57 47 Mara . . . N.P. 49.0 1.8 14.8 37.8 30.8 8 30 14.80 —3.19 48 Washington . . . 6.7 19.8 32.8 45.5 58.5 8 33 32.66 +3.42 3 17.86 4.61 49 Mars . . . S.F. 20.8 33.5 46.5 59.3 13.3 8 36 46.46 -4.08, /.'I Washington . . . 3S.O 51.0 3.9 16.8 39.7 8 40 3.88 + 1.32 3 17.42 5.404 51 Mare . . . N.P. 31.5 44.5 57.3 10.0 23.3 8 41 57.30 —3.104 53 Washington . . . 50.3 3.0 16.3 29.0 42.0 8 45 16.12 +1.45 3 18.8} 4.554 53 Mare . . . S.F. 11.2 24 0 37.0 49.8 8.7 8 48 36.94 —3.15 54 Washington . . . 29.7 43.5 55.5 8.3 31.0 8 51 55.40 +2.14 3 18.46 5.29 55 Mare ... N.P 23.7 36.6 49.4 2.0 15.0 8 54 49.34 —3.104 56 Washington . . . 43.2 56.3 9.3 23.0 35.0 858 9.16 +1.25 3 19.82 4.354 57 Mara . . . S.F. 37.6 40.6 53.5 6.3 19.5 859 53.50 —3.62 58 Washington . . . 47.0 59.8 12.9 25.7 38.6 9 3 12.80 +1.54 3 19.30 5.16 59 Mara . . . N.P. 24.0 36.8 49.8 3.6 15.5 9 5 49.74 —2.43 60 Washington . . . 44.5 57.5 10.4 23.2 36.1 9 9 10.34 +1.84, —3 20 60 — 4.27J Remarks. A moat superb night; the place of the compiling star La evidently 1m. too little in the Washington observations. a Sharp and steady. b Pint-rate. I cannot make better observations than those which follow. c Magnifying power with all the rest, 235. d Mars passing along 9" or 10" to the north of a 10th magnitude star. Results. h. m. s. m. 8. Rev. / // Mean 8. F. . . Fifteen transits . 7 34 46.84 — 3 12.887 .... —6.181 . . . —3 0.47 Mean N. P. . . Fifteen transits . 7 41 22.74 — 3 14.443 .... —5.295 . . . =1 43.30 h. m. m. B. h. m. 8. Correction for c hronometer at 7 ,'(.*> . . —3 14.14 Correction for chronometer at 7 41 . —3 14.15 6 35.89 114 OPPOSITION OF MABS, 1851-52, .1 \\l \KV 'ft. lS.M»-< oiitli.n. .1. Retultt — Continued. A P. ». limb« In A. R. redored to are 83.34 A N. 8. limlw micr. In rev * * 88S— 17.97 Yanainin o( A. R. In 6m. 3tt — 6.88 Variation of declination in 6m. 36f. . — 1.53 UtMerred P. V. diameter 18.46 Corr. for diam. of inicr. win* . . . - 9.90 Observed N. 8. diameter .... 13. M k. B. A»U73J . w . 0.19 h. m. A t at 7 40 . « . 0.10 JJ M »1C % i-. I-.'.:. i C •bronomi lertime of irana I. Planet- -Star. Thereto* •Men. ~ Mean of wire* Micr. Bar. I Oojtcu A. B. C. U. E. Ac. Ad. Air. Wei. ; h. m. a. Rev, !;• \ 1 III-IH-- • • 1 H. C. . . . 16464 44.6 57.5 10.5 93.4 36.3 6 38 10.46 +3.32 27.990 66.6 55.9 9 Mara . . . 8.P. 51.6 5.0 18.0 30.6 43.5 6 44 17.74 2.88 +6 7.98 —0.44 Ther. an. 3 H. C. . . . 16464 3K.3 51.9 4 3 17.0 30.0 648 4.16 9.80 70* .7 4 Mar. . . . N.P. 43.8 56.8 9.6 93.4 35.3 6 54 9.M 3.31} 6 5.49 +0.51} Bar. red H '•-• K. 97.875 5 B. C. . . . 16464 10.0 93.0 35.8 4H.6 1.5 6 56 35.78 9.494 0 Man . . . 8 P. 1S.8 28.8 41.7 54.5 7.5 7 9 41.66 9.18} 6 5.88 -0.94 7 B.C. . . . 16464 33.6 46.5 59.5 19.4 23.3 7 4 59.46 9.11 8 Man . . . N.P. 37.8 50.8 3.5 16.5 99.4 7 11 3.60 2.82} 6 4.14 +8.71} 8 B.C. . . . 18464 . . 91.9 34.1 47.0 0.0 7 14 34.10 1.79 10 Man . . . 8.F. 19.9 95.8 38.7 51.5 4.5 79038.68 1.79 6 4.58 0.00 11 B.C. . . . 16464 94.8 37.8 50.8 3.5 16.5 79950.68 1.58 19 Man . . . N.P. 97.8 40.6 53.5 6.4 19.5 7 9853.52 9.48} 6 9.84 0.94} 13 H.C. . . . 16464 51.0 3.7 17.0 99.8 49.8 7 31 16.86 1.31} M Man . . . 8 F. 54.9 7.3 90.3 33.0 46.0 7 37 90.16 1.58 6 3.30 0.20} 15 B.C. . . . 16464 10.0 22.8 35.8 48.5 1.5 7 39 35.79 1.90 l« Mara . . . N P. 11.5 94.5 37.5 50.3 3.2 745 37.40 9.39 6 1.68 1.19 17 B.C. . . . 16464 16.1 99.9 49.0 54.8 7.7 747 41.96 1.07 18 Man . . . 8.F. 18.9 31.3 44.0 56.9 9.9 75344.08 1.50} 6 9.10 0.43} ID B.C. . . . 16464 40.0 53.0 6.1 19.0 31.8 756 5.98 1.06} 90 Mara . . . N.P. 40.6 53.7 6.5 19.4 39.3 8 9 6.50 9.40 6 0.52 1.33} 91 B.C. . . . 16464 45.5 58.5 11.4 94.3 37.1 8 4 11.36 1.11 9> Mara . . . 8.P. 41.4 50.3 11.4 95.0 38.0 8 10 12.02 1.73} 6 0.86 0.89} 93 B.C. . . . 16464 19.9 95.0 38.0 50.8 3.6 8 19 37.92 1.09 94 Man . . . N.P. 11.5 M • 37.4 50.9 3.1 8 IB 37.34 9.53 1 1.41 1.44 as B.C. . . . 16464 1.9 14.9 97.0 40.0 59.9 8 91 97.06 1.19} 98 Man . . . 8.P. 1.0 13.8 96.5 39.5 59.7 8 97 96.70 9.00 559.84 0.80} 97 B.C. . . . 164B4 S5.t 8.8 91.8 34.6 47.5 8 9991.79 1.38} 98 Mara . . . N.P. 54.0 6.5 19.5 39.4 45.5 8 35 19.58 3.07 557.86 1.68} 99 B.C. . . . 16464 . t 41.0 53.7 6.4 19.5 837 53.67 1.63 3* Mara . . . 8.P. 98.5 .TJ.:I 59.9 • • 17.5 84352.10 -••'. 558.43 0.90} n II .«'. . . . 16464 91.0 44.0 57.0 9.6 99.5 84556.89 1.89 39 Mara . . . N.P. 97.7 40.7 53.7 6.5 19.5 8 51 53.89 3.78 656.80 1.89 27.983 62.0 43.6 13 H- r. . . . 16464 34.5 47.4 0.4 13.9 96.0 8 64 0.30 2.94} Thfr. an. M Mara . . . B.P. 31 .t 44.7 57.8 10.5 93.5 8 59 57.68 3.40 1.15} 69. '5 Bar. red. IS II '•-... 16464 U.I 96.9 39.0 51.8 4.6 9 1 38.98 9.80 H • I". 97.879 SI Man . . . N.P. S.8 91.6 34.5 47.5 0.5 9 7 34.58 +4.88 +5 55.80 +9.08 AT SANTIAGO DE CHILE. 145 JANUARY US, 185S8— Continued. Remarks. Not so good a night as last night ; hut all the observations were made under a magnifying power of 235, and with great satisfaction. Quite a sharp earthquake early in the afternoon. Results. h. m. s. m. a. Rev. i n Mean S. F. . . Nine transit* . . . 75381.90 + 6 8.139 . . . +0.393 . . . . =0 7.66 Mean N. P. . . Nine transits . ..81 41.75 + 6 0.476 ... +1.303 .. . . =025.39 h. m. m. •. h. m. s. _ .. hmnnmetpr at 7 53 — 3 16.90 7 50 4.30 ' 3 16.91 7 58 24 84 8 20.54 n // A P. F. limbs in A. R. reduced to arc . . . 24.94 A N. S. limbs mier. in rev . 0.910 = 17.73 ... — 8.63 Variation of declination in 8m. 21s. . — 1.87 . . . 16.31 Corr. for diam. of micr/ wires . . . — 2.20 13.66 h. m. n h. m. n A o at 7 47 . 0.00 A t at 7 55 . 0.02 JANUARY 89, 1833. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. AJ. Air. Wet. a. a. 0. i. a. h. m. 0. Rev. >. Rev. Inches. 0 O 1 9 3 4 5 6 7 8 1 10 « 11 19 13 M 15 18 17 18 19 SO 91 S3 93 94 95 98 31.5 7 13 31.48 7 14 7.58 7 16 11.98 7 16 47.18 7 18 18.48 7 18 54.78 7 21 18.48 7 21 52.98 7 23 15.58 72350.98 726 9.48 796 43.98 7 26 43.28 7 99 19.18 7 31 15.38 7 31 50.28 7 33 43.48 7 34 16.98 7 36 45.58 7 37 18.98 7 40 40.98 7 41 14.98 7 45 34.38 7 46 6.98 7 47 57.68 7 48 30.48 —4.07 +3.68 —4.31 +4.42 -A.att +3.58 —4.42 +4.39 —4.57 +3.50J — 1.60J +4.18J —4.72 +3.331 -4.75i +3.3H -4.88 +4.07 -4.98 +4.04J —4.97 +3.30 —5.001 +4.061 —5.03 +3.23 +36.10 35.20 36.30 34.50 35.40 31.50 35.90 34.90 33.50 33.40 34.00 32.60 +32.80 +7.75 8.73 7.981 8.81 8.071 8.79 8.05J 8.07 8.93 9.00} 8.27 9.07 +8.26 28.050 Ther. att 68". 7 Bar. red. to 3i° F. 27.940 64.0 53.7 Mara . . . 8.F. • ' 7.6 12.0 • • • • Mart . . . N.P. • • • • 47.9 18.5 • • • • Mara . 8.F. 54.8 18.5 Man . . . N.P. • • 53.0 15 6 • • Man . . . BF. 51.0 Washington . . Mare . . . N.P. • • • • M 44.0 43.3 • • • • Man . . . 8.F. • • 19.3 15.4 • • • • Man . . . 8.F. • • • • 50.3 43.5 • • Mara . . . N.P. • • • • 17.0 45.6 • • • • Mara . . . N.P. • • 19.0 41.0 • • Man . . . 8.F. Washington . . . Man . . . N.P. • • • • 15.0 34.4 7.0 57.7 • • • • Man . . . B.F. • • 30.5 • • • • 19 146 OPPOSITION OP MARS, 1861-52, JfJ IM \U T M, 1 M.V4 (ontli mrd. 1 C hronomc if lr»n«i Mean of wire* Micr Planei- •Star. Bar. I'll' ' ' ,. i. H 1 Object. A. B. C. D. i: A* 4JL Air. Wet 1 A ECT Rer 1 1 • ' • - • 41 1 fj 9.9 7 50 9 18 —5.07 M M 64.0 53.7 • 99 Man . . . NT. U • , • Ml • • • • 33.6 31.6 • • • • 7 50 33.58 7 53 31.58 +4.19 —5.05 +31.40 +9.19 Th*r. au. ,.- : 3) 5.8 7 53 5 M ., • 33 60 8.37 Bar. ml. 31 40.3 7 56 40 98 5 17 i.. .>.• r 97.940 38 33 Man . . . N.P. . • • • U.O S5.5 • • • • 7 57 13.98 8 0 55 48 +4.04 —5.17 33.70 9.91 34 35 Man . . . 8.P. WathlBftna , . . • • • • 88.9 sa.7 • • • • 8 1 98. 18 8 9 59.68 +3.34 —5.091 39.70 8.51 35 Man . . . N.P. M.7 8 3 94.68 +4.18 39.00 9.27J 97 v, .. 8.6 8 5 9.58 — 5.05J IS Man 6.F. 49.5 8 5 49 48 4-3 404 39 80 8 46 3M 46.3 8 7 46 98 — 5 05 40 41 Mm . . . N.P. • • • • 17.0 46.5 • • • • 8 8 16.96 8 10 46 48 +4.98 — 5.434 30.70 9.33 49 43 Man . . . 8.P. WariiinfUm . . . • • • • 18.3 96.9 • • • • 8 II 18.98 8 13 98 18 +3.13 — 5.40J 31.80 8.564 44 Man . . . N.P. 59.0 8 13 58 98 +3.88 30 80 9.3*4 45 89.6 8 1.1 29 58 —5 40 45 Man . . . 8.F. 1.6 8 16 1 58 +3 25 39 00 8.65 47 3.6 8 17 3 58 — 5 35t 46 Man . . . N.P. 34.0 8 17 33 98 +4.074 30 40 9.43 40 19.0 8 19 18 98 —5.321 50 Man . . . 8.F. 50. i 8 19 50 48 +3.29) 31 50 8.69 »1 33.9 8 91 33 18 — 5.291 at 8 93 3 48 4-3 38 30 'M 8 634 S3 Washington . . . 19.5 8 24 19 48 — 5 94 . Mail . . . 8.P. • • • • 50.6 > 0 • • • • 894 50.58 8 96 8 08 +3.47 5 93 31.10 8.71 • : Man . . . N.P. Waihinftnn . . . • • • • 38.5 50.4 • • • • 89638.48 8 28 50.38 +4.37 —s.isi 99.50 9.60 .- Man . . . 8.P. 91 0 8 30 90 98 4-3 691 30 60 .- aj gg 39 9 8 31 39 18 — 5 074 M Man . . . N.P. 1.5 8 33 1 48 4-4.511 29 30 9.59 (I Wa«hlnftnn . 55.0 8 38 54 88 —4.90 • Man . . . 8.F. 94.7 8 37 94.68 +3-871 99.70 8.87) a Wuhinrtnn . . . 44.3 8 38 44 28 —4.83 M > Man . . . N.P. Watnlitftnn . . . • • * • 19.0 • • • • 8 40 19.88 8 41 39.48 +4.84 4.77J H ,,, 9.67 « •7 Man . . . B.F. • • • S.9 57 6 • • • • 8 49 9.18 8 43 57 S8 +4.14 ; i • 99.70 8.9!* • • Man . . . N.P. WuMcfUw . . . • • • • 96.0 • • • • 8 44 95.88 8 46 9 08 +5.05 — 4 64 • H 9.744 M 71 Man . . . 8.P. W,.l,,,»l.,n . . . • • • • 36.0 • • • • 84637.08 8 47 50 48 +4.33 4 61 98.90 8.07 71 Man . . . N.P. • • • • 18.6 • • • • 8 48 18.58 +5.99 +88.10 +9.83 AT SANTIAGO DE CHILE. 147 JANUARY -i-.i. 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. c. D. E. An. A Observed P. F. diameter // . . 19.05 . . — 9.09 . . 16.96 A N. S. limbs micr. in rev Variation of declination in 2m. St. . . Corr. for diain. of micr. wires . . . // 0.828 = 16.14 — 0.44 — 2.20 13.50 h. m. A p at 8 2 // . 0.16 h. m. A pat 8 4 . // 0.17 JANUARY 30, l - . : No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A a. Air. Wet. B. B. B. B. B. h. m. B. Rev. 8. Rev. Inches. • • 1 a 3 4 5 6 7 B Mars . . . 8.F. • • • • 18.2 41.5 • • 7 14 18.18 7 14 41.48 7 17 59.68 7 18 23.68 7 21 9.98 7 21 33.48 7 23 37.98 7 23 53.48 +3.12 —3.62 +3.63 — 3.77J +2.79 -3.87t +3.531 — 3.86J —23.30 24.00 23.50 — 25.50 +«.74 7.40J 6.66J +7.40 28.034 Thcr. alt. 68°. 0 Bnr. red. to 32° F. 27.937 57.8 53.9 MarB . . . N.P. • • • • 59.7 23.7 • • • • Man . . . S.F. 10.0 33.5 Mara . . . N.P. • • 38.0 53.5 • • • • 148 OPPOSITION OF MARS, 1851-52, JAN I nq«*. CbronoowtCT lime of transit. Mcanofwim. Micr. PtaBM-Slar. Bar. A. B. C. D. E. Ac. A I. Air. IV. I h. a. .. Rev. a. ROT. tetjMft • • 9 H 11 a a 14 15 16 17 18 If 90 •1 • 83 94 as • 97 98 • 30 31 • as 34 as 38 37 38 • 40 a « 43 II ; 4t 47 44 49 W H • a M Man . . . 8.F. • • • • 57.6 91.5 • • • • 7 94 57.58 79581.48 7S7 33.98 7 97 58. 98 7 31 38.98 7 31 51.48 7 33 50.51 7 34 15.98 7 35 51.91 7 36 18.98 7 38 5.81 7 3831.98 7 40 45.41 7 41 10.48 7 42 99.31 7 4255.98 7 44 36.51 7 45 2.98 7 47 30.91 7 47 57.98 7 49 17.11 7 49 43.48 7 SO 56.91 7 51 24.18 7 59 54.91 1 5330.98 7 55 19.91 7 55 40.18 7 59 6.41 7 59 32.98 8 1 T.r.l 8 1 35.58 8 4 1.61 8 4 98.38 8 5 99.71 8 690.98 8 U 35.51 8 19 4.18 8 13 99.48 8 13 57.98 8 17 9.48 8 17 37.48 6 18 56.38 8 19 95.18 8 30 59.38 8 91 9t>.3B +9. 74 -4.15 +3.51 —4.051 +2.59 —4.11 +3.3S4 _ ,...- +2.334 -4.38 +3.35 —4.32 +2.51 —4.38 +3.39 —4.45 -;•••.••-. -4.461 +3.304 —4.51 +2.464 —4.52 +3.334 -4.504 +2.51 -1 ...-: +3.40 -4.56 +2.04 -5.11 +9.91 -5.08 +9.19 -S.14J +9.99 —5.12| +3.014 —4.34 +3.89 —4.23 +3. 12, -T90J +4.00 -4.174 +3.344 —4.18 -93.90 85.00 94.50 95.47 86.37 96.17 85.07 •41 96.47 27.07 26.37 97.27 -_-.>.: 27.97 96.57 98.07 96.77 ..... 97.67 98.50 ».oo 98.80 -99.00 +6.89 7.56J 6.70 7.604 6.71J 7.67 6.89 7.77 6.99 7.814 6.98J 7.84 7.03 7.96 7.15 7.99 7.964 8.114 7.354 8.05 7.33 8.174 +7.494 88.034 Tb*r. all H ji Bar. ml. ID* \: «.m 57.8 53.9 Man . N.P. 34.0 50.0 Mara . . . 8.F. • • • • 97.0 51.5 • • • • Man . . N.P. 37.8 16 0 Mara 8 F 39 0 18.3 Man . N P 59 9 u 33.0 Man . . . 8.F. Wa»liiuton . • • 33.5 10.5 • • • • Man . . . N.P. W aldington • • 16.4 56 0 • • • • Man . . . S.F. • • 83.6 3.0 • • • • Man . . , N.P 18.0 Wmnhinpon . . . 58.0 Man . . . 8.F. 4. a VVublnttiin 43.5 • • • • Man . . N P 44.0 94.9 Man . . . 8.F. ,\ • • 43.0 91.0 • • • • Man . . . N.P. 0.0 Waiblnfioo. 40.9 Man . . . 8.F. tY uhinfton . • • 53.5 33.0 • • • • Man . . . N.P. 54.6 \\ .-I.M.-I. u . 35.6 Man . 8F 48.7 Washington . 98.4 Man . . . N P 39.8 Washington . . . 91.0 Man . . . S.F. U i.:,.- .-I..,, • • 33.6 4.9 • • • • Man . . . N.P. Washington . . . • • • • 99.5 58.4 • • • Man . . . S.F. lVa.|.,i.(l'.n . . . • • • • 9.5 • • • • Man . . . N.P. 56.4 WMkiBgM . . . 95.9 Man . . . B.P. AT SANTIAGO DE CHILE. 149 JANUARY 3O, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A. 8. 8. 8. h. m. s. Rev. B. Rev. Inches. O • 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 ;i • 73 74 75 76 77 78 79 80 81 83 83 84 85 86 B7 88 80 90 91 93 93 94 • M r 98 99 100 Mars . . . N.P. • • • • 39.0 8.3 • • • • 8 22 38.98 8 23 8.18 8 24 39.36 8S5 7.48 82626.58 82656.28 8 29 12.88 8 29 41.38 8 31 23.58 8 31 53.48 8 33 56.18 8 34 25.18 8 35 34.28 8 36 4.58 8 37 10.98 8 37 40.48 8 38 44.58 8 39 14.98 8 40 33.38 8 41 2.48 8 43 3.48 84334.18 8 45 40.98 8 46 10.58 8 47 49.38 8 48 13.28 8 51 1.48 851 31.48 853 41.48 8 53 13.28 8 54 33.48 8 54 54.13 8 56 24.58 8 56 56.48 8 59 1.68 8 59 33.98 9 0 53.58 9 1 25.98 9 3 0.18 9 3 31.78 9 4 45.98 9 5 18.48 9 7 9.68 9 7 41.18 9 8 59.78 9 9 33.38 +3.99 —4.17 +3.26 —1.14J +4.17 —4.11 +3.43 —4.07 +4. 86 —3.96 +3.611 —3. 911 +4.48 —3.801 +3.73 —3.81 +4.58 —3.721 +3.sei —3.63 +4.80 —3.70 +4.06 -3.46 +5.03 —3.41 +4.38 -3.38 +5.271 —3.251 +4.541 —3.22 +5.49 —2.98 + 4.81 —2.89 +5.74 —2.78 +4.981 —2.85 +5.91 —2.59 +5.25 -2.64 +6.70J — l.M —29.20 28.10 29.70 28.50 2ff.90 29.00 30.30 29.50 30.40 39.10 30.70 29.60 30.90 30.00 31.80 30.70 31.90 31.30 32.40 31.60 32.50 31.50 —33.10 +8.16 7.401 8.28 7.50 8.22 7.53 8.381 7.54 8.301 7.51J 8.50 7.52 8.44 7.76 8.53 7.761 8.47 7.70 - 8.52 7.831 8.50 7.89 +8.621 28.031 Ther. att. 66°. 8 Bar. red. to 32° F. 27.927 56.0 53.3 Mare . . . S.F. 39 4 7.5 Mars . . . N.P. • • 26.6 56.3 • • • • Mara . . . S.F. 12 9 41.4 Mare . . . N.P. • • 33.6 53.5 • • • • Mare . . . S.F. • • • • 56.3 35.9 • • • • M»r« . . . N.P. • • 34.3 4.8 • • Mare . . . S.F • Mara . . . N.P. 44 6 15 0 Mare . . . B.F. Washington . . . • • • • 33.4 2.5 • • • • Mare . . . N.P. 3 5 . 34.3 Mara . . . B.F. • • 41.0 10 6 • • • • Man . . . N.P. 43 4 Mara . . . S.F. 1 5 Washington . . . 31 5 Man . . . N.P. 41 5 13.3 Man . . . 8.F. • • • • 23.5 54.2 • • Mare . . . N.P. 34 6 58.5 Mare . . . S.F. 1 7 33.0 Mara . . . N.P. 53.6 26.0 Mara . . . S.F. 0.2 31.8 Mara . . . N.P • • 46.0 18.5 • • • • Man . . . S.F. 9.7 41.3 Mara . . . N.P. • • • • 59.8 32.9 150 orrosmoN OF MARS, 1851-52, JAM \KV 30, 109)1— Continued. Rtmarlci. T>m* a«nt- Air a»ag»ir>lrig po"" n»r I" "••*• Comparing »tar not beijhror than 19), or perhaps II magnitude, and so dim under Mfht that a at UM mmrnmm are doubtful. Many were made with no otoer light than that thrown into Uie field by the pluteu BetulU. Mm 8. P. . . Twrnty fivr trannu MranN'.P. . TwMiiy-n»e transits h. m. f. . 8 13 81.70 . 8 is as. sa a. Rer. -S7.696 .... + 7.984 . — 98.834 .... +8.088 . t H . . •_• •-.].:«•. . . =9 37.63 li in. Correction for chronometer at 8 13 . . Correction for chronometer at 8 IS . . A P. r. limb* In A. R. reduced to arc . Vanau,,n ..I A. R. in 2.». 5. Observed P. F. diameter m. s. . —3 93.01 . —3 2J.01 n . . 17.04 . . + a.n . . H.«3 h. m. .. 8 9 SB 69 Santiago Hid. lime N.I* . . 8 19 4.93 9 4 83 A N. 8. limbs IIIIIT. in rev. . . . Variation of declination in 8m. S>. . Con. for liiiim. IP! micr. wire* . . Observed N. 8. diameter . . . . 0.801 = 15.67 — 0.43 — 3.90 13.04 li. in. A » at 8 10 . .... // . 0.13 h. m. a.alBia . // 0.15 JANUARY 31, 1833. j I Object. Chronometer time of transit. Mean of wire*. Micr. Planet-Star. Bar. Therm ometen. A. B. C. D. £. A«. A.l.i»ei»n . . . lf.7 31.6 4S.7 S6.S 11.5 7 46 45.40 +4.41 3 5.96 8.991 17 Man . . . B.r. 38.8 SI. 8 4.7 1T.6 30.6 7 49 4.70 -4.70 10 Washington . . . 44.9 87. 3 10.3 93.3 36.3 7 51 10.38 +4.36 S 5.58 9.06 IB Man . . . N.r. 41.0 54. 0 •.8 19.7 33.0 7 S3 6.90 -3.87t- M Waihinglosj . . . 47.4 0.8 13.7 36.7 39.6 7 55 13.60 +4.38 9 6.70 8.9SJ 11 Man . . . 8.P. 34.4 47.4 0.9 13.3 96.4 7 58 0.40 -I.59J • Washington . . . 40.5 S3.3 8.4 19.3 30.3 H 0 6.36 +4.41 9 S.96 9.00| • Man . . . N.P. 30.3 49.3 56.0 9.0 93.1 8 1 56.19 -3.73 M Washington . . . 37.8 SI.O 3.7 16.6 39.7 8 4 3.76 +4.49 S 7.64 8.31 • Man . . . 8.P. 37.7 50.8 3.S 16.4 3».S 8 6 3.54 -4.43 • Washington . . . 44.0 S7.0 9.9 33.0 3S.8 8 8 9.04 +4.59 9 6.40 8.95 Man . . . N.P. 41. A S4.S 7.3 90.0 33.9 8 10 7.30 -3.63 - **•*,*. . . . CM 1.1 14.1 97.0 40.9 8 19 14.19 +4.471 • MI — 8.10J AT SANTIAGO DE CHILE. 151 JA1TUART 31, 1851— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A a. Air. Wet. s. 8. s. l. a. h. in. B. Rev. Ml. 8. Rev. Inches. « • 29 Mare . . . B.F. 33.0 45.0 57.9 10.8 23.8 8 16 57.90 — 4.4-,'J 27.983 62.0 53.6 30 Washington . . . 39.0 52.1 5.0 17.8 31.0 8 19 4.98 +4.41 —9 7.08 —8.831 31 33 33 Mara . . . N.P. Wtuhington . . . Mara . . . 8.F. 38.6 47.5 1.7 51.7 0.5 14.7 4.6 13.3 97.5 17.7 26.3 40.4 30.7 39.3 53.5 8 31 4.66 8 23 13.38 8 26 27.56 —3.48 +4.47 ^1.13 2 8.72 7.95 Ther. alt. 69°. 5 Bar. red. to 3S° F. 27.872 34 Washington . . . 9.5 23.5 35.4 48.5 1.5 8 28 35.48 +4.60 9 7.92 8.73 35 Mare . . . N.F. 4.0 17.2 39.8 42.8 56.0 8 30 39.96 —3.13 36 Washington . . . 13.3 26.2 39.3 53.3 5.3 8 33 39.28 +4.71 2 9.32 7.84 37 Mara . . . B.F. 5.2 18.3 31.0 44.1 57.2 8 35 31.16 —3.75 / 38 Washington . • . • • 27.0 39.8 53.8 5.7 8 37 39.83 +4.88 2 8.67 8.63 39 Mare . . . N.P. ta.7 3.1.6 38.5 51.4 4.5 839 38.54 —2 79 40 Washington . . . 29.6 35-5 48.4 1.4 14.5 8 41 48.48 +5-OI* 9 9.94 7.80* 41 Mara . . . 8.F. 47.9 0.2 13.3 36.0 39.2 8 44 13.18 —3.35 43 Washington . . . 56.5 9.3 22.3 35.1 48.2 8 46 22.28 +5.17^ 9 9.10 8.521 43 Mara . . . N.P. 5.7 18.6 31.5 44.5 57.S 8 49 31.56 — 3.361 44 Washington . . . 16.5 29.4 49.4 55.4 8.4 8 51 42.42 +5.33 2 10.86 7.691 45 Mare . . . B.F. 27.9 41.0 53.8 6.6 19.7 8 53 53.80 —4.71 46 Washington . . . 37.5 50.7 3.7 16.6 39.5 8 56 3.60 +3.6N 2 9.80 8.391 47 Mara . . . N.P. 0.9 13.9 96.7 39.5 52.5 8 58 96.70 —3.67 48 Washington . . . 19.0 35.1 37.8 50.8 4.0 9 0 37.94 +3.9SJ 2 11.24 7.631 49 Man . . . B.F. 40.5 53.5 6.3 19.3 33.5 9 7 6.42 —6.64 90 Washington . . . 51.0 4.0 17.0 30.0 43.0 9 9 17.00 +1.61 2 10.58 8.25 51 Mara . . . N.P. 47.7 0.6 13.7 26.6 39.7 9 11 13.66 —5.52 sa Washington . . . 0.1 13.0 35.8 38.6 52.0 9 13 35.90 +1.91 —9 12.24 —7.43 Remarks. Another splendid night. Images excellent, instrument* steady, and measures satisfactory ; the only drawback being, that the star it so small thnt a higher magnifying power than 150 cannot he used and sufficient light retained. It is certainly not brighter than a 111 or Kith magnitude. Although differing considerably from the Ephemeru, it must be the star intended ; for the only other in the vicinity is a 12th magnitude, which follows 49.15>., and is 1.16 rev. (=22". 61) north. Results. h. m. i. m >. Rev. / n Mean 8. F. . . Thirteen transits . . 8 7 45.98 — 2 6.637 .... —8.888 . . . =353.33 Mean N.I'. . . Thirteen transit! . . . 8 19 18.76 — 2. 8.001 .... —8.053 . . . =236.95 h. m. m. B. h. m. 8. Correction for chronometer at 8 8 . . . — 3 24.65 8 4 21 33 Correction for chronometer at 8 12 . . . — 324.68 . . 8 8 54.10 4 32 77 n // A P. F. limbs in A. R. reduced to arc 20.46 A N. S. limbs micr. in rev. . . . . 0.835 = 16.27 Variation of A. R. in 4m. 33f . — 4.54 Variation of declination in 4m. 33» . — 0.89 Observed P. F. diameter 15.83 Corr. for diam. of micr. wires . . 2.20 Observed N. S. diameter .... 13 18 h. m. n h. m. H . 0.17 A o at 8 10 . 0.15 ir.2 OPPOSITION OF MARS, 1851-52, n liiti \ KY i, issa • 1 1 • . .'i Hri . of Iran. h M. ' ' \\ •. . Planit- -Star. Bar 1 ':• "I... n«Wn. 1 Objcrl. A. B. c. D. 1 A«. AJ. Air. Wet. i h. m • Rev Rev I-.. (i. - • I i BtMd 311 ±0 00 9< 3 Man . . . 8.P. Brvrl . . . 344 • • • • 48.3 • • • • 644 48.48 —13.16 ±0.00 • • -19.16 98.099 87.8 59.0 4. Man . . . N.P 6.0 6 47 5.98 — 11.3S U 33 Ther. au 73M 5 Itnul ... 344 ± 0.00 Bar. red. to W P 6« Man . 8. P. SO 0 6 48 49.96 13 16 13 16 •j ..:"• 7 8 f Br«H ... 344 Man ... N.P BMM! . . . 344 • • • • 94.0 98.0 46 0 • • • • 65093.98 6 5037.98 6 51 45.98 ±0.00 —11.38 4- 0.00 +4.00 11.98 10 Man ... 8 P. 50.9 6 51 50.88 —13.05 4 90 19 05 11 It 13 14 B*»el ... 344 Man . . . N.P B»Ml ... 344 Man . . 8.P. • • • • 93.8 38.0 S9.7 4.0 • • • • 6 5393.78 65397.98 65559.68 6 56 3.98 ± o.oo — 11.351 ±0.00 — 13.13J 4.90 4 30 11.35) 19 134 IS tltmit ... 344 49 5 6 57 49.48 ±0.00 16 17 IB Man . . . N.P. BOM! ... 344 Man . . . 8.F. • • . . 53.0 16.0 90.5 . . . . 657 5Q.98 6 SB 15.98 6 59 90.48 —11.18 ± 0.00 —13.09 3.50 4.50 11.18 19 03 19 90 91 99 93 M Bn«l ... 344 Man . . . N.P. BOKI ... 344 Man . . . 8.P. Bc«el ... 344 Mara . . . N.P. • • • • 58.0 1.5 35.0 40.9 49.0 45.3 • • • • 7 0 57.98 7 1 0.48 7 3 35.96 7 3 40.18 7 5 41.98 7 545.38 ± 0.00 — 11.99) ± 0.00 — 13.01J ± 0.00 —11.08 3.50 4.30 3 30 11.221 13.01) 11 08 95 K Bmd ... 344 Man . . N P • • • • 96.0 30 9 • • • • 7 795.96 7 7 99.98 ± 0.00 —11 13 4 90 11 13 97 BWM| • . 344 31.0 7 9 90.98 ±0 00 9B 9> 30 Man . . . N.P. BMK! ... 344 Man 8 F • • . . 93.5 57.0 0 5 . . . . 7 993.48 7 11 56.98 7 19 0.48 —11.13 ± o.oo 11 86 9.50 3 50 11.13 11 86 31 3g BMMl. . . 344 Man . . 8 P • • • • 94.0 ., i, • • • • 7 13 93.98 7 13 97.58 ± 0.00 11.90 3 60 11 90 33 34 •CMC! ... 344 Man . . . B.P. • • • • 15.8 19.7 • • • • 7 14 15.78 7 14 19.68 ± 0.00 11.90) 3 90 H 90) H 3| [' ' liJ •»••••"• • • * tn% Man . . . N.P. • • • • 33.5 36.5 • • • • 7 16 33.48 7 16 36.48 ±0.00 —11.00 3 00 11 00 37 B«Ml . . . 344 44.5 7 19 44.48 ±0 oo 3B Man . . . B.P. 48.9 7 19 48.18 —11.81 3.70 11.81 » 40 41 • 43 44 45 41 B«Ml ... 344 Man . . . N.P. ' • 944 Man . . . B.F. ••Ml ... 344 Man . . . N.P. •«Ml ... 344 Man . . . B.P. * * . . 19.0 91.0 36.0 38.6 19.0 90.0 10.5 • • • • 7 91 18.98 7 91 90.96 79935.98 7 99 38.58 7 95 18.98 7 35 19.96 7 97 10.48 7 97 19 96 ±0.00 -10.96 ± 0.00 —11.84 ± 0.00 —10.97 ± 0.00 I.I. 9.00 9.60 1.00 4-9.50 10.96 11.84 10.97 11.66) AT SANTIAGO DE CHILE. 153 FF.HIll-.VUY 1, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. Ao A* Air. Wet. 8. 8. 8. 8. 8. h. m. s. Rev. s. Rev. Inches. ° O 47 48 49 50 51 52 53 M 55 56 57 58 58 60 61 63 Bessel ... 344 18 0 7 29 17.98 7 29 19.18 7 30 27.48 7 30 29.48 7 32 12.08 7 32 13.18 7 33 38.98 7 33 41.58 7 3523.98 7 35 24.78 7 37 4.98 7 37 6.78 7 38 30.98 738 31.48 7 3955.98 7 39 57.48 ± 0.00 —10.99 ± o.oo —11.754 ± 0.00 —10.944 +_ 0.00 — 11.72 ± 0.00 —10.834 ± 0.00 —11.674 ± 0.00 —10.814 ± 0.00 —11.6-24 +1.20 2.00 1.10 2.60 0.80 1.80 0.50 +1.50 —10.99 11.754 10.944 11.72 10.834 11.674 10.814 —11.624 28.014 Ther. att. 73" . 1 Bar. red. to 32° F. 27.892 66.6 55.5 19.2 Bessel ... 344 Man 8 F. • • 27.5 29.5 Bessel ... 344 • • • • 12.1 • • Bessel ... 344 Man . 8.F • • • • 39.0 41.6 • • • • Bessel ... 344 Mars . . . N.P. • • • • 24.0 34.8 • • • • Besiel ... 344 Mara 8 F 5 0 6.8 Bessel ... 344 Man . . N.P. • • 31.0 31.5 • ' • • Bessel ... 344 Man . . . 8.F. • • . • 56.0 57.5 • • Remarks. There were two sharp earthquakes at an interval of 12t. about 6A. 12m. p. m., and their effect ncema to have been to change the atmospheric con- dition. Planet and §tar are at one instant steady, and before half way across the field, blurred and jumping in a most extraordinary manner. The measure*, therefore, could not have been very good, even had there not been the additional difficulty <>i endeavoring to keep Mars on the middle wire, with the tangent screw, whilst the micrometer wire was moved to bisect the star. Thus only one reading of the mi.crom< U.T appears, the star being that number ol revolutions to the north of the planets1 limbs. a The three preceding observations are not incorporated into the meant. Results. h. m. s. ». Rev. 1 H Mean S. F. . . Fourteen transits . . . 7 17 15.69 + 3.258 .... —11.855 . . . . =351.05 Mean N. P. . . Fourteen transits . . . 7 18 5.30 + 2.486 .... —11.060 . . . . = 3 35.56 h. m. m. s. b. m. 8. Correction for chronometer at 7 17 . . . —338.97 Santiago sid. time 8. F. ... 7 13 48.62 Correction for chronometer at 7 18 . . . —326.97 Santiago sid. time N.P. ... 7 14 38.33 49 71 it /; A P. F. limbs in A. R. reduced to arc . . 11.58 A N. S. limbs micr. in rer. . . . . 0.795 = 15.49 Variation of A. R. in SOi . . — 0.74 Variation of declination in 50«. . . . — 0.02 Observed P. F. diameter .... . . 10.84 Corr. for diam. of micr. wires . . . . — 2.20 Observed N. 8. diameter . . . . . 13.27 h. m. n h. m. it A p at 7 14 . 0.23 A p at 7 15 . 0.22 FEBRUARY 3, 1833. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A I. Air. Wet. 8. 8. B. 8. 8. b. m. B. Rev. m. s. Rev. Inches. • | 1 3 3 4 Man . . . B.F. Bessel ... 344 Mara . . . N.P. Bessel ... 344 18.3 49.0 43.5 15.5 31.1 2.0 56.4 38.4 44.0 14.9 9.4 41.5 57.0 27.6 22.3 54.3 10.0 40.6 35.3 7.2 7 15 44.06 7 17 14.82 7 19 9.38 7 20 41.38 —2.364 0.88 3.10 —0.77 —1 30.76 —1 32.00 —1.484 —2.33 28.002 Ther. att. 73°. 7 Bar. red. to 32° F. 37.878 69.5 60.4 20 164 OPPOSITION OF MARS, 1851-62, FK Illtl \ RY 9. IBS*— conti in. .1. : C :: « time i . at wire C. Mean S. F. . Results. h. m. P. ..88 13.83 m. ». Hev. — 1 34.225 .... —1.965 . . . / // . —0 38.30 Mean N.P. . . Fifteen transit* . h. m. . . 8 11 56.13 m. B. . . 3 30 18 — 1 35.569 .... —2.805 . . . . =054.67 h. m. s. . . —3 30.19 . 8 8 25 94 3 42 29 A P. F. limbs i n A. R. reduced to arc // . . . 20.16 . . . 3.57 A N. 8. limbs micr. in rev n 0.840 = 16.37 0 65 Observed P. F h. m. An at 8 5 . diameter .... . . . 16.59 // . . . 0.04 Corr. for diam. of micr. wires . . . Observed N. 8. diameter h. m. A 0 at 8 9 .... — 2.30 13.53 // . 0.05 FEBRUARY 3, 1859. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. Ac!. Air. Wet. 8. t. 8. B. a. h. m. 8. Eev. m. s. Eev. Inches. 0 I 1 2 3 4 S 6 7 8 1 » Mara . . . S.V. • ' • • 10.0 • • • • 8 11 10.00 — 2.05J 3 39 +1.33} 3.15 1.34 3.18} +1.45J 27.908 Ther. att. 71°. 5 liar, r.'.l. to 32° F. 27.790 64.8 59.6 Mare . . . N.P. 30.5 8 12 30.50 1.28 3.43 Mare . . . 8.F. • • 38.6 • • 8 14 38.60 8.01 3.35 1.041 3.23 1.72 —3.17} ... Mars . . . N.P. • • • • 4.7 • • 8 21 4.70 51 6 8 22 51.60 151 OPPOSITION OF MA.BS, 1851-52, FI illlll \ 10 1. i-v: i,.,,n .....I. 1 t • IT Mint- oTtmnsi . Micr Planet- -Star. Bar r • Jin. j ..-. i- k Object. A. B. c. D. E. A«. A A Air. w.i « A Rer • . i 11 i- Man . . . N.P. • • • • 10.8 • • • • 8 84 10.90 4 93 +9 31 97.906 04.8 59.6 13 Man . . B.F. 56.5 89S 96.90 3.49 Thcr . an. 71'. 5 14 4.881 1.46) Bar. red. li If Mara . . . N.P. • • • • 39.0 • • • • 897 39.00 4.87 9.95 n .-• i 97.790 17 Mara . . . 8.F. 8.0 8 99 9.00 3.34 18 Washington . . 4.79| 1.45) 1» M Man . . . N.P. Wellington . . . 35.6 • • • • 8 30 35.60 2.4-.J 4.79 8.961 91 Mara . . . f.F. 18 0 8 33 18 00 3.14 99 4 TO . 1.56 13 Mara . . N.P. 53.1 8 34 53.10 94 4.61 9.33 as as Mara . . . B.F. Washington . . . • • • • 91.0 • • 8 39 91.00 3.09* 4 561 1.54 87 Mara . . . N.P. 55.7 8 37 55.70 9.16 88 Washington . . . 4 591 9.36) » 30 Man . . . B.F. • • • • 20. 5 • • • • 8 40 90.50 9.89 4.46) 1.571 31 Mara . . . N.P. 51 6 8 41 51 60 9.00 32 4 36 9.36 33 Mara . . . B.F. 11 3 8 43 11 30 2.69 34 Wellington • • • 4.36) 1.671 35 Mara . . . N.P. 36 6 8 44 38 60 1.854 38 u 4 Jl •' i i 37 Mara . . . B.F. 8 46 0.50 9.58) 38 Washington . . . 4 17 1.581 39 Man . . . N.P. 94 0 8 47 94 00 1 ~\ 40 4. HI 9.431 41 49 Man . . . 8.F. • • • • 91.0 • • • • 8 48 91.00 8.401 4.041 1.64 43 Man . , . N.P. 44 0 8 50 44 00 1 51 44 Washington . . . 3.94 9.43 4A 8 51 57 70 2 21 4C Washington . . . 3.911 1.70) 47 Man . . . N.P. 11 5 8 53 11 50 1 401 48 Washington . . . 3.841 9.44 49 Man . . . B.F. 40 3 8 54 40 30 2.06 50 Washington . . . 3.78 1.79 SI 5t Man . . . N.P. Washington . . . • • • • 48.9 • • • • 8 56 48.90 1.95 9.53 S3 M Mara . . . B.F. Washington . . . • • • • 32.0 • • 8 57 39.00 1.931 3 66 1.79) 56 Man . . . N.P. Washington . . . • • • • S8.8 • • • • 6 5(58.80 1.05{ -J-9 57 AT SANTIAGO DE CHILE. 157 FEBRUARY 3, 1853-Continned. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A 0. Ad. Air. Wet. 8. >. a. •. .." h. m. s. Rev. m. 8. Rev. Inches. | a 57 58 59 60 Mars . . . S.F. 40.2 • • 9 1 40.20 —1.70 3.57 n. in; — 3.56t +1.87 +2.62 27.886 Ther. att. 70°. 2 Bar. red. to 32° F. 27.773 64.8 61.0 Mars . . . N.P. • • • • 33.3 • • 9 3 33.30 Remarks. Can siratus all over the1 heavens. Both planet and star indistinct and unsteady, though able to use power 235. The small difference A. R. prevented the time ol the star's transit being obierved without risking the declination measure on the border of the field. Results. M«an 8. F. . . Fifteen transits . Mean N. P. . . Fifteen transits . h. m. Correction for chronometer at 8 39 . Correction for chronometer at 8 40 . A N. TS, limbe micr. in rev Variation of declination in 1m. 55*. . . Corr. for diam. of micr. wires . . . . Observed N. 8. diameter h. m. s. 8 38 32.48 8 40 27.45 m. s. — 3 34.23 -3 34.23 0.804=15.70 — 0.31 — 2.20 13.19 Rev. ' » +1.576 .... =030.79 +2.380 .... =046.39 h. m. 8. Santiago sid. time S. P 83458.26 Santiago sid. time N. P 8 36 53.23 Interval 1 54.97 h. MI. " A p at 8 35 0.03 A f at 8 37 0.05 FEBRUARY 4, I-.-, j. The sky was too much obscured by thin cirri to permit the comparing star (H. C. 16337) to be seen even without any light; nor could I find a star in A. K. 8A. 12m. 40.., Dec. +24° 32' i, which is on the map. FEBRUARY 5, I85J1. Entirely obscured. FEBRUARY 6, Entirely obscured. FEBRUARY T, l-r.s. * Chronometer lime of tramil. Planet— Star. Thermometers. s M n of w> f Object. A. B. C. D. E. A a. A I. Air. Wet. s 1 8. •• 8. 8. •• h. m. 8. Rev. m. s. Huv. Inches. • • 1 Bessel ... 341 36.8 50.0 3.2 16.0 29.5 642 3.10 +5.03 37.872 71.4 64.3 3 Mars . . . S.F. . . 54.5 7.2 20.3 33.5 6 43 7.38 —5.65 +1 4.28 —10.68 Ther. an. 3 Bessel ... 341 54.5 7.5 20.6 33.6 . . 6 46 20.53 +4.85 75°. 9 4 Man . . . N.P. 57.0 10.3 23.1 36.0 49.1 6 47 23.08 —4.97 1 2.55 9.83 Bar. red. to 32° F. 27.743 S Bessel ... 341 34.0 47.2 0.0 13.0 . . 6 53 0.03 +4.71 6 Mara . . . S.F. 37.5 50.5 3.5 16.3 39.5 6 S3 3.46 —5.94 +1 3.43 -10.65 OPPOSITION OF MARS, 1861-52, I I .iiui \n\ ;. ISSa-CoBUnaed. i t ok4«t. Chronometer time of trmn.il. Micr. Planet— a Mr. Bar. 'liiTiunnteMn. A. B. 0. D. E. A«. AJ. Air. U.l Her. m. >. Her. Inchr.. • • 7 Be»wl ... 341 41.8 54.6 7.6 90.5 t f 6 58 7.55 +«.«* turn 71.4 MJ 6 Man . . . N.P. 43.5 58.5 9.5 99.5 35.5 7 0 9.50 -5.49 +1 1.95 -8.85J • 10 11 B«Ml ... 341 Man . . . 8.P. •••Ml ... 341 14.8 17.5 ss.o 97.6 30.5 8.9 40.7 4.1.3 91.9 56.9 9.5 7 9 40.59 7 3 43.40 7 631.09 +4.98 —6.34 +4. 11J 1 9.81 10.69 Thrr. all. 75*. 9 Bar. red. to 33- P. 17.741 is Mm . . . N.I*. 58.7 9.6 92.8 35.6 48.5 7 7 33.64 —5.70 1 1.55 9.81J 13 B«>el ... 341 17.9 30.9 43.3 , . . 7 9 43.19 +4.03J 14 Man . . . 8.P. 19.0 33.3 45.5 • • 11.5 7 10 45.31 —8.57 1 9.19 10.60i 15 BeMcl ... 341 SI. 9 4.5 17.5 . . . , 7 13 17.36 +3.97 • 16 Man . . . N P. 59.4 5.5 18.5 31.3 44.4 7 14 18.49 —6.81 1 1.06 9.78 17. Btmti ... 341 6.1 91.9 34.4 . , , . 7 17 34.33 +3.90 18 Man . . . 8.P. 10.9 93.3 36.3 49.9 9.5 7 18 36.30 -6.59 1 9.08 10.49 19 BOK! ... 341 . . 58.0 9.0 . . . . 7 91 8.96 +3.80 • Man . . . N.P. 43.7 56.6 9.8 99.8 35.8 7 93 9.78 -5.98 1 0.89 9.76 • •••Ml ... 341 3.5 17.0 30.0 . , . 795 99.79 +3.73 • Man . . . tf.F. S.3 18.5 31.5 • • 57.6 7 96 31.50 -6.72 1 1.71 10.44 43 a Berne* ... 341 , . 48.8 0.0 , . , 79859.87 +3.60 M Man . . . N.P. 33.8 48.8 0.0 1S.5 96.0 7 99 59.78 — i.»3 059.91 9.53 45 Brtra ... 341 32.5 45.5 58.5 . . . 7 3958.46 +3.48 • Man . . . 8.F. 33.5 48.3 59.0 12.9 95.0 7 40 59.30 -6.83J 1 0.74 10.31J 97 B«Ml ... 341 44.$ 57.6 10.6 . . . . 7 43 10.53 +3.46 • Man . . . N.P. 44.0 57.0 10.0 53.0 36.0 7 44 10.00 — «.08 0 59.48 9.54 M BeaMl ... 341 6.5 99.0 35.0 , m . 7 4634.79 +3.49 30 Man . . . 8.F. 9.0 SS. 0 35.0 48.0 1.0 7 47 35.00 — 6.8*1 1 0.31 10.94i 91 Bevel ... 341 55.0 8.9 91.0 . . 7 5991.03 +3.48J » Man . . . N.P. 53.J 7.0 90.0 39.8 46.0 7 53 19.86 —5.98 058.84 9.481 33 Bevel ... 341 56.0 8.8 91.8 . . . 7 5591.89 +3.551 M Man . . . 8.F. 55.5 8.5 91.5 34.3 47.3 7 56 31.43 -6.68 0 59.60 10.931 :• BOM! ... 341 43.9 96.4 9.4 . , 7 59 9.99 +3.55J 31 Man . . . N.P. 41.5 54.3 7.4 90.4 33.4 8 0 7.40 — 5.91i 0 58.11 9.47 37 BMW! ... 341 31.5 45.3 58.3 , t , f 8 9 58. 39 +3.66J 38 Man . . . 8.P. 31.3 44.5 57.5 • • 93.5 8 3 57.43 -6.59 0 59.11 10.9:1 • Bowl ... 341 8.9 91.0 34.0 . . . , 8 6 34.03 +3.66 4* Man . . . N.P. 5.5 16.5 31.5 44.8 56.0 8 731.63 —5.70 0 57.60 9.36 1 Bevel ... 341 59.3 5.3 18.0 . f . 8 10 18.16 +3.74J « Man . . . 8.P. 51.0 3.6 16.5 39.6 49.6 8 11 16.70 —6.36 05854 10.101 t Bevel ... 341 41.5 .M.. 'I 7.3 . . 8 14 7.39 +3.86 44 Man . . . N.P. 38.3 51.5 4.3 17.6 30.5 8 15 4.44 -5.53 057.19 9.39 46 Bowel ... 341 31.5 45.0 58.0 . . , 8 18 57.79 +3.93 41 Man .. . . B.P. 29.8 43.0 55.6 • • 99.0 8 19 55.83 -6.19| 0 58.04 10.131 47 B"~l ... 341 1.5 14.3 97.3 , , . 8 99 97.33 +4.09 • M 67.0 63.6 46 Man . . . N.P. 58.0 11.0 94.0 38.8 50.0 89393.96 — 5.*IJ 0 56.64 9.941 • M 51. •—art ... 341 Man . . . B.P. Bvart ... 341 35.0 33.9 16.0 48.9 44.0 31.0 1.3 59.0 44.0 19.0 95.0 897 1.19 8 97 59.04 8 30 43.96 +4.91 —5.79 +4.39 057.99 10.00 Tlifr. alt 74*. 8 Bar. ml. U> • 1 97.790 H Man . . . N.P. 14.5 87.0 40.5 • • 6.9 8 31 40.98 -4.96J +056.39 —8.961 AT SANTIAGO DE CHILE. 159 FEBRUARY 1, 1853— Continued. Remarks. -, Night unfavorable. After tbe hottest day (temp. 90° .7) yet experienced in Chile, a cold wind has set in, and the images have never been either sharp or steady. No measure is regarded as more than fair. With the first three, power 150 was used ; afterwards 235, though with some difficulty. The observations marked a were much blurred and unsteady. Mean S. F. . Mean N. P. . Thirteen transits . Thirteen transits . h. m. Correction for chronometer at 7 37 . Correction for chronometer at 7 41 . A P. F. limbs in A. R. reduced to arc Variation of A. R. in 4m. 3f. . . . Observed P. F. diameter .... h. m. A « at 7 33 , Results. Il . m. B. m. s. Rev. / it 7 37 13.23 + 1 0.815 . . . —10.367 . ... =3 22.05 7 41 15.98 + 0 59.381 ... — 9.563 . ... =3 6.38 m. s. b. m. s. -3 47.17 . . . 7 33 26 06 -3 47.18 . 7 37 28 80 if . 91.51 A N. 8. limbs mic. in rev. . . . . . 0.804 = 15.67 . — 3.48 Variation of declination in 4m. 3s. . . — 0.51 18.03 Corr. for diam. of micr. wires . . . . — 2.20 Observed N. S. diameter . . . . . 12.96 // h. m. » . 0.90 A a at 7 37 . 0.19 FEBRUARY 8, 1839. No. for reference. Object. Chronometer time of transit. Mean of wires. Mi. i. Planet— Star. Bar. 'hermometers. A. B. C. D. E. A a. Ad. Air. Wet. •. l. •. •. •. h. m. i. Rer. 8. Rev. Inches. o 0 1 9 Man . . . S.F. 9.0 6 43 8.98 6 4398.58 +3.721 5.59 —19.60 —1.791 27.890 66.6 60.4 Bessel ... 341 . . . . 98.6 . . 3 4 S 8 Mare . . . N.P. Besscl ... 341 Mara . . . S.F. • • • • 10.0 98.3 1.4 • • • • 6 47 9.98 6 47 28.28 6 50 1.38 6 50 19.98 4.33 5.31 3.45 5.191 18.30 18.60 0.98 1.74J Ther. att. 72°. 3 Bar. red. to 32" F. 97.770 Bessel ... 341 • • • • 90.0 • • • • 7 Mare . . . N.P. . . f t 41.7 . . f t « 51 41.68 4.37 8 I 10 11 IS Bexel ... 341 Mara . . . 8 F. • • 59.8 37.5 • • 5 51 59.78 6 53 37.48 6 53 55.68 6 55 15.88 6 55 35.28 5.13 3.401 5.181 4.17J 5.081 18.10 18.20 19.40 0.75 1.78 0.91 Bessel ... 341 Mare . . . N P. • • 55.7 15.9 • • Bessel ... 341 . . 35.3 • . 13 Mare . . . S.F. , f 27.3 6 5827.28 3.45 14 Bessel ... 341 • • 45.8 • • 6 58 45.78 5.111 18.50 1.661 15 Maw . . . N.P. . . . . 56. S . . . . 6 59 56.48 4.13 16 Bessel ... 341 • • • • 16.5 • • 7 0 16.48 5.06 20.00 0.93 17 Man . . . S.F. . . 45.5 t f 7 1 45.48 3.30 18 19 20 Bern! . . 341 Mars . . . N.P. • • 4.4 26.1 • • 7 2 4.38 7 3 26.08 7 3 46.08 5.051 4.21 5.091 18.90 20.00 1.751 0.881 Bewel ... 341 46.1 • • • • 31 Mara . . . 8.F. . t f 42.3 t t f m 7 542.28 3.11 93 Bestel ... 341 • • 1.2 • • 7 6 1.18 4.89 18.90 1.71 93 Man . . . N.P. . . 97.8 . 7 7 27.78 3.89 94 li. -- i ... 341 • • • • 48.0 ' ' • • 7 7 47.98 +4.771 —20.90 —0.881 160 OPPOSITION OF MARS, 1851-62, FKIIIIC AllY 8. 1R5»— Continued. : 1 Okjtct. fhriinnmrirr time of iranalt. Micr. Planet— Star. Bar. 1 I) ,:•,.„,.:• • A. B. C. D. E. A a. Ai. Air. h. m. a. Rev. a. Rev. Inehei. • • • • m m 8B 30 31 31 33 34 • • 37 38 38 40 41 48 43 44 48 46 47 48 4* M SI • • M • - S7 • Mm . . . 8.F. B«Ml ... 341 Mm . . . N.P. Brwel ... 3-11 Man . . . 8.F. • • • • 93.5 43.0 • • • • 7 193.48 7 949.98 7 11 18.98 7 11 37.58 7 13 7.98 7 13 97.98 790 7.18 79096.98 7 31 49.98 799 3.48 7 94 1.88 7 34 31.98 73090.98 73043.48 7 39 11.98 7 22 33.48 735 4.98 73595.78 736 34.08 7 3655.88 7 38 7.08 7 3897.58 7 3930.98 7 39 53.18 7 4t 7.98 7 41 98.98 7 49 49.98 7 43 13.78 7 45 8.98 74597.48 7 4895.08 7 48 47.48 7 47 54.48 7 48 16.08 +3.10 4.86 3.78 4.59 3.05 4.69 9.89 4.43J 3.65 4.47 9.88 4.43 3.60 4.31 3.571 4.95} 9.78 4.301 •'•"'. 4.27J 9.86 4.31t 3.60 4.96 9.781 4.94 3.61 4.95 9.81 4.19 3.56 4 9» 9.87 +4. 90J —19.50 90.60 19.30 19.80 91.90 90.10 91.50 91.50 90.80 91.90 90.50 91.90 91.00 91.90 99.40 —91.60 —1.56 0.81 1.64 1.54J 0.89 1.55 0.71 0.68 1.52J 0.65 1.451 0.66 1.45J 0.64 1.38 0.73 -1.33J •-••. .->• Ther. an TJ .:< Bar. red. toSS'F. 97.770 97.888 Ther. att. 71'.S Bar. red. to 3i° F. 97.770 66.6 64.9 60.4 59.5 • • 17.0 37.8 • • • • 8.0 Brnel ... 341 Mara . . . 8.F. • • • • 27.3 7.8 • • • • B«Ml ... 341 Man . . . N.P • • • • Z7.0 49.3 • • • • BeMd ... 341 Man . . . 8.F. • • • • 3.5 1.9 • • • • Boel ... 341 Man ... N.P. Be»el ... 341 Man . . . N P 23 0 • • • • 91.0 43.5 19.0 • • • • B«Mel ... 341 Man . . . 8 F 33.5 S.O B«Mel ... 341 Man . . . N.P. • • • • 85.8 34.1 • • • • Bcml ... 341 Man . . . 8.F. 56.0 7.1 Bowl ... 341 Man ... N.P • • • • S7.8 • • * • BOM! ... 341 Man . . . B.F • • • • 52.3 8 0 • • • • Buael ... 341 Man . . . N.P. BMM< ... 341 Man . . . 8.F. 99 0 • • • • 50.0 19.9 6 3 • • • • B«M«i ... 341 Man . . . N.P. 8<»>el ... 341 Man . . . 8.F. Bowl ... 341 • • • • 97.8 85.1 47.5 54.5 18.1 • • • • Remarks. Night very much the Mine ai the lart, and mcanurei of like value. Ai there was no change for the better, it wai considered useloM to multiply Ihrn, after the planet had paued the meridian. Results. h. m. *. «. Rev. i n Mean 8. F. . . Fifteen tnnuiti . . . 7 16 96.91 19.767 .... 1.593 . . . . —0 31.05 Mian N. P. . . Fourteen tranrtu . . . 7 17 33.54 — 90.657 .... —0.789 . . . . =0 15.38 h. m. m. ». h. m. n. Correction for chi rnnnmcfr at 7 16 . . . —.1 50.60 7 19 36.35 CwnetkNitech rammtrrat? 18 . . . —3 50.80 Santiago »id. time N. I' 7 13 49.94 Interval 1 6.59 AT SANTIAGO DE CHILE. FEBRUARY 8, 1853— Continued. Results — Continued. 161 A P. P. limbs in A. R. reduced to arc ... 16.65 Variation of A. R. in 1m. 7» — 0.93 Observed P. F. diameter 15.79 h. m. A pat 7 13 . 0.03 A N. 8. limbs micr. in rev 0.803=15.67 Variation of declination In 1m. 7*. . . — 0.12 Corr. for diam. of micr. wires .... — 2.20 Observed N. S. diameter 13.35 h. m. " A pat 7 14 0.01 FEBRUARY 9, 1859. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. An. A.. Air. Wet. • a. l. •• •• b. in. 8. Rev. nU. Rev. Inches. • « 1 Mara . . . S.F. 0.5 13.5 96.5 39.3 53.5 6 44 26.46 +3.6-3 27.969 68.7 59.6 9 Bessel ... 341 37.0 50.0 3.4 16.3 29.3 6 46 3.30 —2.73 —1 36.74 +6.35 3 4 S Mara . . . N.P. Beuel ... 341 Mara . . . S.F. 39.2 17.0 91.0 59.1 30.0 34.0 5.3 43.0 47.0 18.1 56.0 59.9 31.0 8.9 13.0 6 48 5.14 6 49 4-2.98 6 51 46.98 +4.251 —2.87 +3.41 1 37.84 7.131 Ther. att. 73°. 8 Bar. red. to 32- F. 27.845 6 Benel ... 341 58.0 11.0 24.0 37.0 49.9 6 5323.98 —3.02 1 37.00 6.43 7 Mara . . . N.P. 49.5 9.5 15.6 98.5 41.5 6 55 15.53 +4.01 8 Benel ... 341 97.8 41.0 53.8 6.6 19.5 6 56 53.74 —3.111 1 38.22 7.121 9 Mara . . . B.F. 30.4 43.5 56.5 9.5 23.7 6 58 56.53 +3.19 H Beisel ... 341 8.2 91.0 34.0 46.8 59.8 7 0 33.96 —3.23 1 37.44 6.43 11 Mare . . . N.P. 19.3 32.2 45.2 58.1 11.1 7 3 45.18 +3.791 12 Brasel ... 341 58.0 10.8 24.0 36.8 49.6 7 4 23.84 —3.41 1 38.66 7.201 13 Man . . . B.F. 33.3 45.3 58.2 11.3 34.4 7 7 58.30 +3.10 14 Benel ... 341 10.4 23.3 36.3 49.0 3.0 7 9 36.20 —3.31 1 37.90 6.41 15 Man . . . N.P. 30.5 43.5 56.7 9.6 23.6 7 11 56.58 +3.84 16 Benel ... 341 10.0 92.8 36.0 48.9 1.7 7 13 35.88 —3.39 1 39.30 7.23 17 Mara . . . S.F. 45.3 58.9 11.2 94.0 37.0 7 16 11.14 +3.04 18 Benel ... 341 23.6 36.5 49.5 9.5 15.5 7 17 49.52 -3.451 1 38.38 6.491 19 Mara . . . N.P. 5.5 18.6 31.6 44.5 57.5 720 31.54 +3.72 90 Benel ... 341 45.0 58.0 94.7 37.5 7 22 11.30 —3.53 1 39.76 7.35 21 Man . . . B.P. 2.0 15.0 28.9 41.0 54.3 7 95 38.10 +2.94 91 Benel ... 341 • • 54.3 7.1 90.1 33.0 7 37 7.16 —3.59 1 39.06 6.53 S3 Mara . . . N.P. 38.0 49.2 2.3 15.2 28.3 7 39 3.30 +3.71 94 Beimel ... 341 16.7 29.6 49.9 55.5 8.2 7 30 43.58 —3.63 1 40.38 7.33 25 Mara . . . 8.F. 35.3 38.4 51.4 4.4 17.5 7 33 51.40 +2.91 96 Benel ... 341 5.0 18.0 30.8 43.6 56.5 7 34 30.78 —3.68 1 39.38 6.59 27 Mara . . . N.P. 1.3 14.3 27.4 40.4 53.4 7 36 27.34 +3.74 as Beisel ... 341 41.3 55.0 8.0 31.0 33.8 7 38 8.02 —3.65 1 40.68 7.39 • 19 Mars . . . B.F. 36.0 49.0 2.2 15.0 38.0 7 40 2.00 +2.86 30 Benel ... 341 16.5 29.0 41.8 54.8 7.6 7 41 41.94 —3.66 1 39.94 6.52 31 Mara . . . N.P. 13.2 36.3 39.3 53.3 5.3 7 43 39.24 +3.781 32 Bessel ... 341 54.4 7.4 20.3 33.2 46.0 7 4520.26 —3.70 1 41.02 7.481 33 Mara . . . N.P. 47.5 0.5 13.5 36.5 39.6 8 47 13.52 +3.071 34 Benel ... 341 • • 45.9 58.0 11.0 33.9 8 48 58.06 —4.71 1 44.54 7.781 35 Mara . . . N.P. 90.5 33.5 46.5 59.5 12.7 850 46.54 +3.29 36 Bessel ... 341 5.5 18.3 31.5 44.4 57.0 8 52 31.34 —4.47 —1 44.80 +7.76 21 162 OPPOSITION OP MARS, 1851-62, n ••.mil i iRY 9. l-v; i u,,..l. 1 t • ••• : m oftran.it Planet- •Star. r t • <"••! MM k Objtct. A. B. c. 0. 1 Ac. A i. Air. u , ,. .- Rev t m K gl Man . . . 8.P. 30.5 43.7 56.6 1.5 854 56.58 +9.83 97.953 64.5 :,;i n 38 Bowl ... Ml 14.5 97.5 40.7 53.5 0.5 8 56 40.51 — 4.901 —1 43.98 +7.03, 39 40 MM . . . 8.F. BwMl ... 341 7.8 5S.3 90.8 5.1 33.8 18.1 46.8 31.0 59.8 43.8 8 5833.80 9 0 18.08 +3.14J —3.90 1 44.96 7.04) Ther. att. 79* .6 Bar. red. M :i-' K. 41 MM . . . 8.P. 58.5 5.4 18.5 31.4 44.5 9 9 18.46 +3.3SJ * Beawl ... 341 • • 50.0 3.0 15.8 98.7 9 4 9.91 -3.74 —1 44.45 +7.091 Remarks. Fine night. Clean, steady imagei, and very tatiifactory meuvm throughout. BMvte Mru 8. P. Mean N. P. Mean N. P. Mean B. F. Pint eight lnm»il« Pirn eight traniiu Last two transits Lail tbrre Iranniu h. m. Correction for chronometer at 7 19 . CorrecuoB for chroaomeler at 7 16 . h. m. «. 7 19 19.61 7 15 51 .47 8 49 0.03 .- • : — 3 54.06 — 3 54.09 m. i. Ker. / n 1 38.930 . . . . +6.468 . . . . =9 6.0V 1 39.482 . . . 7.9S7 . . . . 991.63 1 44.870 . . . 7.779 . . . . 9 31.48 1 44.993 . . . . +7.058 . . . . = 9 17.55 b. m. i. Santiago «ld. time 8. F 78 18.53 Santiago lid. time N. P 71157.38 Interval . 3 38.85 A P. P. limbs in A. B. reduced to arc Variation of A. R. in 3m. 3*. . . Observed P. P. diameter . 18.78 — 9.86 15.99 A N. S. limb* micr. in rev. . . Variation of declination in 3m. 39*. Corr. for diain. of micr. wire* . Observed N. S. diameter . . . it 0.799 = 15.57 — 0.38 — 9.90 IJ.'.H h. m. Correction for chronometer at 8 49 Correction for chronometer at 8 59 n. *. -3 54.99 -3 54.30 h. m. B. Santiago >id. time N. P 8 45 5.74 Santiago lid. time 8. P 05441.96 Interval 9 36.94 A P. F. limhf in A. R. reduced to are Variation of A. R. in 9m. 3h. . . . Observed P. F. diuaeur . . . . 8.70 + 7.68 14.38 b. m. A » at 7 9 0.13 0.14 A N. 8. limb. micr. in rev 0.714 — 13.92 Variation of declination in 9m. 36.. . + 0.99 Corr. for diam. of micr. wire> ... — 9.90 Observed N. 8. diameter 19.71 b. m. * A pat 8 46 0.15 A fat 8 55 0.14 FEBRUARY 1O, ISSil. : ~ Chronometer lime of transit. Mean oT wires. Micr. Planet — Star. Bar. Thermometein. A. B. C. D. E. A a. A I. Air. Wet. a. a. s. a. a. b. m. a. Rev. m. B. Bev. Inches. • • 1 • a 4 B««ael ... Ml Mm . . . B.F. Bcaaal ... Ml Mm . . . N.P. 19.5 15.6 13.0 39.6 •8.6 •6.0 47.0 45.5 41.6 39.0 0.0 58.6 54.5 W.O 19.9 11.6 fjt 5.0 6 43 47.00 6 47 45.56 6 50 41.54 6 54 39.00 +5.47 1.57 5.16 +9.07 +3 5B.S6 +357.46 -3.90 —3.09 97.887 Ther. alt. 76'. 0 H.it. Ht. i..:t! K. 97.756 79.8 56.5 AT SANTIAGO DE CHILE. 163 FEBRUARY 1O, 1853— Continued. No. for reference. Object. Chronometer time of transit. VIean of wires Micr. Planet— Star. Bar. rhermometers. A. B. c. D. E. A a. A A Air. Wet. 8. 8. 8. 8. 8. h. m. s. Rev. m. s. Rev. Inches. • O 5 Bessel ... 341 8.0 21.2 34.3 47.0 0.0 6 56 34.10 +4.97 27.887 73.8 58.5 6 Man . . . B.F. 6.4 19.5 32.5 45.4 58.4 7 0 33.44 1.191 +358.34 —3.771 7 8 9 Bessel ... 341 Man . . . N.P. Bessel ... 341 53.3 50.0 8.5 6.4 3.0 21.5 19.4 16.3 34.5 32.5 39.0 47.5 45.3 49.9 0.6 7 3 19.38 7 7 16.10 7 9 34.53 4.761 1.80 4.781 3 56.72 3.961 Ther. att. 76°. 0 Bar. red. to 32' F. 27.756 10 Mars . . . B.F. 19.3 33.3 45.0 58.3 7 13 32.22 1.10 3 57.70 3.681 11 Bessel ... 341 36.5 39.5 52-5 5.5 18.5 7 17 52.50 4.63 12 Man . . . N.P. 22.5 35.4 48.4 1.2 14.5 7 21 48 40 1.77 3 55.90 2.86 13 Bessel ... 341 38.2 51.3 4.3 17.2 30.9 7 24 4.2t 4.66 L, 14 Man . . . S.F. 34.7 47.6 0.7 13.7 36.8 7 28 0.70 1.09 3 56.46 3.57 15 Bessel ... 341 25.8 38.8 51.8 4.6 17.6 7 39 51.79 4.68 16 Man . . . N.P. 21.0 34.1 47.1 0.0 13.2 7 33 47.08 l.SOi 355.36 2.871 17 Bessel ... 341 39.0 51.8 5.0 17.8 31.0 7 36 4.93 4.67 18 Man . . . B.F. 34.8 47.5 0.7 13.7 97.0 7 40 0.74 1.101 3 55.82 3.561 * 19 Bessel ... 341 7.0 90.0 33.0 46.0 59.0 7 4333.00 4.72 90 Man . . . N.P. 1.5 14.5 97.5 40.5 53.5 7 46 97.50 2.154 3 54.50 9.561 91 Bessel ... 341 11.3 94.3 37.3 50.1 3.9 7 48 37.22 4.811 92 Man . . . B.F. 6.5 19.S 33.5 45.4 58.6 7 59 33.50 1.301 3 55.28 3.51 23 Bessel ... 341 3.1 16.3 29.1 43.3 55.1 7 54 39.18 4.90 34 Man . . . N.P. 57.0 10.0 33.9 36.0 49.4 7 58 33.13 2.16 353.94 9.74 25 Besscl ... 341 9.5 92.5 35.4 48.5 8 0 22.48 4.98 26 Man . . . S.F. 51.3 4.3 17.3 30.0 43.3 8 4 17.23 1.491 3 54.74 3.481 97 Bessel ... 341 46.0 59.0 13.0 95.0 38.0 8 6 12.00 5.10 98 Man . . . N.P. 39.3 52.4 5.5 18.3 31.5 8 10 5.40 2.38 3 53.40 2.72 39 Bessel ... 341 14.1 97.9 40.0 53.0 8 13 37.08 5.26 30 Mars . . . B.F. 55.0 8.0 90.8 33.6 47.0 8 16 20.88 1.811 353.80 3.44} 31 Bessel ... 341 2.0 14.8 27.8 41.0 8 25 14.90 4.771 32 Man . . . N.P. 41.0 54.0 7.0 90.0 33.0 8 29 7.00 2.121 3 53.10 2.65 33 Bessel ... 341 36.5 49.5 2.6 15.5 28.5 8 33 2.59 5.131 37.898 64.6 55.7 34 35 36 Mars . . . B.F. Bessel ... 341 Man . . . N.P. 29.5 1.5 53.0 49.5 14.5 1.0 55.5 «7.7 19.0 8.5 40.5 32.0 91.7 53.5 45.0 8 36 55.54 8 49 97.54 8 46 19.00 1.83 5.731 +3.2* 353.02 +3 51.46 3.301 —9.511 Ther. att 73° .6 Bar. red. to 32° F. 37.774 Remarks. Night excellent; images shnrp and steady. There are two other stars preceding and following this, respectively, about 7i»., and which coin- cide better in declination, bill they are so very small that they will not bear illumination. The star used is not mor« than a 10J or 10th magnitude at most. I can sue well the dark portions or the planet with power 235, but am compelled to use very little light with the star. Results. h. in. s. in. s. Rev. / // Mean 8. F. . . . Nine transits . . . 7 39 59.75 + :i 55.969 .... — 3.5H3 . . . . =1 9.81 Mean N.P. . . . Nine uansits . . . 7 47 32.51 + 3 54.538 .... —2.776 . . . . =054.10 h. m. m. a. h. m. s. Correction for chronometer at 7 40 . . . — 3 57.24 Correction for chronometer at 7 48 . . . — 3 57.25 7 43 35 26 luleival 7 32.75 164 OPPOSITION OF MAKS, 1851-52, I •Kllltl \H\ Hi. I».v4-rimtlnu«l. Jittulta — Continued. A f. r. link* In A. R. rrrturrd In uc \ analiun of A. R. In 7m. 33*. . . ObMrr** P. F. dianurwr . . . . h. a*. 7 M 91.91 - 4.87 16.04 0.07 A N. 8. limb* micr. in rev 0.808=15.71 Variation of ilcrlinalion in 7m. 33§. . . — 0.74 1'nrr. lordlam. ufmirr. wlm .... — 8.80 Otwerred N. 8. diameter 18.7* b. in. " A f at 7 4* 0.06 FEBRUARY 11, 1M». £ 1 Object. Chronometer time of traniiu Mean of wires. Micr. Planet — Star. Tli.-riii.illieten. A. B. C. D. B. An. A i. Air. Wet. Rev. „,... Rev. inehe.. • * i Baaed ... 341 97.0 40.0 53.0 6.0 19.0 79553.00 +3.48 37.956 63.9 87.8 3 4 S 8 Man . . . 8.F. Baaad ... 341 Man . . . N.F. Beaxl ... 941 Man . . 10.3 94.5 6.3 17.8 0.5 93.4 37.5 19.5 30.7 13.5 36.5 50.4 33.5 43.7 H. 49.3 3.4 45.0 56.6 39.5 9.5 16.5 58.4 9.5 53.5 73836.40 73950.48 73532.34 7 37 43.66 7 40 96.50 5.44} 1.311 5.11 +4.36} +3 43.40 341.86 -J i.'.-l +2.98} 3.791 3.06 Ther. alt. 73'. 9 Bar. red. l» 32' F. 37.831 7 Baml ... 341 38.1 45.0 48.0 11.0 93.6 8 31 57.94 -1.881 8 Man . . . N.P. 10.9 93.8 37.0 50.0 3.0 8 34 36.94 +3.131 3 39.00 4.03 9 Band ... 341 f t t m 97.5 40.3 53.0 838 97.30 —1.81} 10 Man . . . 8.F. 40.5 53.7 6.6 19.6 33.8 8 39 6.64 +1.47 239.34 3.281 11 Be-el ... 341 31.5 44.5 57.4 10.0 93.4 8 40 57.36 —1.58 19 Man . . . N.P. 9.5 22.6 35.6 48.5 1.7 8 43 35.58 +2.43 3 38.23 4.01 13 Be*Ml ... 341 . . 38.6 41.5 54.6 84638.60 —2.91} 14 Man . . . 8.F. • • 54.7 7.5 30.6 33.7 8 49 7.63 +0.46 2 39.03 3.371 U Beavel ... 341 10.6 33.6 38.5 49.5 3.5 8 51 36.54 —2.57 18 Man . . . N.P. 48.9 1.3 14.4 37.3 40.5 8 54 14.34 +1.57} 3 37.80 4.14} 17 Baaad ... 341 14.3 97.1 40.3 53.0 6.0 8 56 40.14 —3.25 18 Man . . . 8.F. 58.5 5.5 18.5 31.4 44.6 8 59 18.50 +1.16} 333.36 3.411 If Baaed ... 341 , . 48.6 59.5 19.5 95.5 9 059.53 -1.98} H Man . . . N.P. 10.5 93.5 36.7 49.6 9.6 9 3 36.58 +8.841 +3 37.05 +4.17 Remarks, Night u precedtRf. The neridian rirclt utwrvationn show thai UiU w the right »t»r. t 'umpiring U with H. C. 15707, it i* a full magnitude aOer, K> that the WUMIC of U*t uiflu m cunvci. There u a >iar rather bnghipi In the mine parallel with Marl, and following about Int. Remltt. Mean 8. F. . . Fir»l two traiinili . Mean N. P. . Finl Iranull . . . Mean N. P. . . La>t four iranrila . Meaa B. F. . . l.a.1 three tramlu . k. m. a. . 7 34 31 .4S 7 M 33.34 . 8 49 O.B8 . 8 49 10 92 h. in. Concetto*) for chronometer at 7 34 . . Correction tor chronometer at 7 36 . . m. *. — 4 0.38 . —4 0.38 A t. r. limb, in A. 1. reduced In are . Variation of A. R. in Im. It . . 18.90 . . 0 78 OWwnri F. F. diameter . 10.14 + 2 43.120 . 2 41.860 . 2 38.017 . + 2 38.910 . Her. + 3.02J , 3.795 4.006 , + 3.358 Hanliain .id. time 8. F. Santiago >id. time N. P. Interval .... = 048.90 1 1:1 '.«. 1 19.64 = 1 5.45 h. m. •. 7 30 31. 09 7 31 31.98 1 0.8* A N. 8. limb, niter. In rev 0.773=15.07 Vitialicin of 1'liii.iinui in Im. It. . . — O.I » I 'orr. for flmni. nf niicr. wirei .... — 2.30 OlMerveil N. P. duuM-fi 1374 AT SANTIAGO DE CHILE. 165 h. m. Correction for chronometer at 8 49 . Correction for chronometer at 8 49 . FEBRUARY 11, 185»— Continued. Results — Continued. m. s. -4 0.52 -4 0.52 Santiago sid. time N. P. Santiago sid. time S. F. Interval h. m. s. 8 45 0.34 8 45 10.40 10.06 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 10«. . . , Observed P. P. diameter .... h.m. A f at 7 29 A pat7 30 13.39 -f- 0.13 13.51 0.06 0.07 A N. S. limbs micr. in rev. . . Variation of declination in 10«. Corr. for diam. of micr. wires . Observed N. 8. diameter . . h. m. A f at 8 44 A f at 8 44 0.728=14.19 + 0.02 — 2.20 12.01 0.03 0.06 FEBRUARY 1*, 1852. Cloudy. FEBRUARY 13, 1892. £ Chronometer time of transit. Planet— Star. Thermometen. 1 Moan *-''— ^-~ - Micr. Bar. | Object. A. B. C. D. £. An. A A Air. Wet. 1 c ^ -t I. Bf l. h. m. >. Rev. m. s. Rev. Inches. » 0 2 1 H.C. . . . 15707 95.7 38.7 51.8 4.6 17.7 7 9 51.70 —3.331 28.033 63.8 58.9 2 Mara . . . 8.F. 0.5 13.5 36.6 39.6 52.7 7 14 26.58 +2.98 +4 34.88 +6.311 Ther. alt. 3 H.C. . . . 15707 17.5 30.8 43.8 96.6 9.7 7 18 43.68 -3.751 69° .2 4 Man . . . N.P. 51.2 4.3 17.2 30.3 43.3 7 23 17.86 +3.331 4 33.58 7.09 Bar. red. to 32° F. 27.323 5 H.C. . . . 15707 32.6 45.6 58.8 11.6 94.5 7 25 58.62 —3.731 6 Man . . . 8.F. 6.5 19.5 32.6 45.5 58.8 7 30 32.58 +2.70 4 33.96 6.431 7 H.C. . . . 15707 90.5 33.0 46.0 58.7 11.9 7 32 46.02 —3.721 8 Man . . . N.P. 52.5 5.5 18.6 31.5 44.5 7 37 18.52 +3.371 4 32.50 7.10 9 H.C. . . . 15707 1.5 14.5 97.5 40.4 53.5 7 3927.48 —3.73 10 a Man . . . 8.F. 34.8 47.7 0.7 13.7 26.9 7 44 0.76 +2.73 4 33.28 6.46 11 H.C. . . . 15707 19.8 39.5 45.5 58.5 11.5 7 45 45.58 —3.791 19 Man . . . N.P. 51.6 4.7 17.6 30.5 43.5 7 50 17.58 +3.52 4 32.02 7.241 13 H.C. . . . 15707 38.6 41.5 M.4 7.5 826 41.50 —2.63 14 Man . . . 8.F. 46.5 59.5 19.5 95.5 38.5 8 31 12.50 +3.991 4 31.00 6.621 15 H.C. . . . 15707 7.3 30.2 33.3 46.1 59.0 833 33.18 —2.271 28.023 63.8 Mkl 16 Man . . . N.P. 36.7 50.0 3.0 15.9 29.0 8 38 9.93 +5.11 4 29.74 7.381 17 H.C. . . . 1S707 50.0 3.0 16.0 99.0 49.0 8 40 16.00 —1.98 Ther. att. 68°. 6 18 Man . . . 8.F. 90.4 33.5 46.5 59.4 12.5 8 44 46.46 +4.67 4 30.46 6.65 Bar. red. to 3-2° F. 19 H.C. . . . 15707 18.3 31.5 44.6 57.4 10.5 8 46 44.46 —1.60 97.912 90 Man . . . N.P. 47.5 0.5 13.5 96.5 39.5 8 51 13.50 +5.821 +4 29.04 +7.491 Remarks. linages blurred and unsteady all the evening, and measure! only tolerable. u Recorded 43m. 55.7*. at wire C. Mean 8. P. Mean N. P. Mean 8. P. Mean .V. P. First three transits First three transits bast two transit* Last two transit* Results. h. m. s. 7 29 39.97 7 36 57.79 8 37 59.48 8 44 3? .21 m. s. + 4 34.040 4 32.700 4 30.730 + 4 29.390 Rev. + 6.403 7.145 6.637 + 7.405 = 2 4.79 2 19.98 2 9.35 = 9 24.32 166 OPPOSITION OF MARS, 1851-52, FEBRUARY 1», 1858— Continued. Jitiults — Continued. h. in. ComctkM for chronometer u " 30 Comcoon for cbroaometcr ai 7 37 . m. ». -4 6.71 i i.n b.B.t, Santiago did. time 8. F 7 35 33.98 Santiago aid. time N.P 73351.07 Interval 7 17.81 A P. F. limb, in A. R. reduced to are. Vanauon of A. R. in 7m. 18>. . . OUarrod F. F. diameter .... b. m. Correction for cbronometer at 8 38 . Correction for cbronomelcr at 8 45 . 90.10 — S.01 15.09 i Ml I T..-C A N. B. linitw mirr. in rev. . . Variation of declination in "M. 18s. Corr. for diam. of micr. wire* Obwrvcd N. 8. diameter . . . 0.749= 14. 46 — 0.47 — 9.90 11.79 b. m. >. Santiago Kid. time 8. F 8 33 53.64 Santiago nid. time N. P 84031.35 Intrrval 6 38.71 A P. F. limlis in A. R. reduced to arc Variation of A. R in 6m. 3*. . . . OtMerred P. F. diameter . A f at 7 93 A p at 7 31 •.'II. Ill • 4.56 15.54 u 0.13 0.14 A N. S. limbs micr. in rev Variation of declination in 6m. 39i. . Corr. for diam. of micr. wires . . . Observed N. 8. diameter . . . h. i 0.768=14.97 — 0.43 — 3.20 19.34 A pat 8 33 0.13 A pat 8 38 0.15 FEBRUARY 14, 1859. § Chronometer time of trannt. kfcm of wiri'r*. Micr Planet — Star. R.. Thermometers- i Object. A. B. C. D. E. A a. Ad. DVi Air. U'fl. - 6 a. a. a. a. a. b. m. •. Rev. m. i. Rev. Inchei. • • 1 Beoel ... 341 . , 48.3 1.5 14.5 97.5 6 48 1.46 +6.73 97.977 6J.8 a Mara . . . 8.F. 18.5 31.6 44.6 57.6 10.8 6 51 44.63 1.50 +3 43.16 —5.33 TlnT. an. 3 Bend ... 341 0.0 13.0 96.0 39.0 53.9 6 54 36.04 6.44J 74°. 0 4 Man . . . N P. 49.3 5S.S 8.4 31.3 34.5 6 58 8.40 1.98 3 43.36 4.461 Bar. red. to 32° P. 97.853 6 BMMl ... 341 . . 9.0 99.0 35.0 48.0 7 3 39.01 6.49 6 Man . . . 8.F. 38.0 51.4 4.5 17.5 30.5 7 6 4.38 1.30 3 43.37 5.19 7 Be*Ml ... 341 . , 31.9 44.1 f f 9.7 7 8 44.03 6.48 8 Man . . . N.P. 59.5 19.5 95.5 38.5 51.6 7 19 95.59 1.90 3 41.49 4.58 9 BeMd ... 341 15.0 28.3 41.4 54.3 7.4 7 15 41.38 6.16 10 Man . . . 8.F. 57.5 10.5 93.5 38.5 49.6 7 19 93.53 0.931 343.34 5.991 11 Braael ... 341 . . 93.1 3S.9 49.3 3.9 7 97 38.91 +9.631 19 Man . . . N.P. 50.5 3.4 16.5 99.5 49.5 7 31 16.48 —1.75 3 40.37 4.3S1 13 •••Ml ... 341 8.5 91.5 34.5 47.5 0.5 73334.50 +9.57 14 Mara . . . B.F. 90.0 3.9 16.0 39.9 49.9 7 37 16.19 —9.581 3 41.63 5.151 IS Bevel ... 341 91.0 34.0 47.0 0.3 13.0 7 39 47.04 +2.531 It Mara . . . N.P. 1.9 14.0 97.0 40.9 53.9 74397.13 -1.80J 3 40.08 4.34 17 BemI ... 341 19.5 31.5 44.5 57.5 10.5 7 45 44.70 +9.57J 18 Man . . . 8.F. 58.0 19.5 95.5 38.3 51.5 74995.36 -8.48 3 40.66 5.0»i 19 Benel ... 341 46.8 59.6 19.6 95.6 38.5 7 59 13.69 +I.H 90 Man . . . N.P. 96.5 39.5 59.3 5.9 18.3 75553.36 -1.741 339.74 4.391 91 B«Ml ... 341 53.0 6.0 19.0 33.0 45.0 7 SB 19.00 +9.731 • Man . . . 8.F. 33.5 46.5 50.4 19.4 95.5 8 1 59.46 —9.35 3 40.46 5.081 93 Be*wl ... 341 47.5 0.5 13.5 96.5 39.5 8 4 13.50 +9.831 H Man . . . N.P. 98.6 39.5 S9.6 6.5 18.5 8 7 59.59 —1.44 . :< m.m -4.971 AT SANTIAGO DE CHILE. 167 FEBRUARY 14, 1853— Continued. S Chronometer time of transit. Planet— Star. Thermometers. Mean of wires Micr. Bar. s Object. A. B. C. D. E. A a. A* Air. Wet. fi 0 a. B. 8. 8. 8. b. m. 8. Rev. m. B. Rev. Inches. O 0 Z 25 Bessel ... 341 45.0 58.0 11.3 34.2 37.3 8 10 11.14 +3.02 27.992 60.2 26 Man . . . 8.F. 34.6 38.0 50.8 3.7 16.8 8 13 50.78 —1.99} +339.64 —5.01} Ther. an. 27 Basel ... 341 f 45.5 58.7 11.5 24.5 8 15 58.56 + 1.61 71°. 0 • Man . . . N.P. 10.7 93.6 37.0 49.8 3.0 8 19 36.82 —2.67 3 38.26 4.38 Bar. red. to 32° F. 27.876 29 Bessel ... 341 14.7 27.7 . . 54.3 7.5 8 31 41.05 +1.801 30 Mara . . . 8.F. 53.6 6.7 19.6 32.8 45.6 8 95 19.66 —3.12 338.61 4.921 31 Bessel ... 341 14.4 97.4 40.4 53.5 6.5 8 97 40.44 +2.07 33 Man . . . N.P. 52.3 5.1 18.9 31.0 44.5 8 31 18.20 —2.141 337.76 4.21} 33 Bessel ... 341 59.5 5.5 18.5 31.5 44.5 8 33 18.50 +3.351 34 Han . . . 8.F. 31.0 44.9 57.9 10.0 23.3 8 36 57.14 —2.60 s'ss.ei 4.951 35a Bes>el ... 341 30.1 43.6 56.9 9.2 33.9 8 3856.26 +2.631 36 Man . . . N.P. 7.5 90.5 33.5 46.3 59.5 8 42 33.46 —1.60 +3 37.20 —4.23} Remarks. Much haze: rendering the aUr very indistinct at times, and keeping the images always blurred and wavy. The star is more than a magnitude smaller than II. C. 15707, which U therefore put down u t 9th. • a Recorded 40. 1>. at wire A. Results. h. m. a. m. 8. Rev. / it Mean 8. F. . . . Nine transits . . . 7 46 53.45 + 3 40 823 . . . . —5.093 . ... =1 39.26 Mean N. P. . . . Nine transits . . . 7 53 36.76 + 3 39.576 .... —4.344 . ... =1 24.66 b. m. m. B. h. m. s. Correction for chronometer at 7 47 . . . — 4 9.63 Santiago gid. time 8. F . . . 7 42 43 82 Correction for chronometer at 7 54 . . . —4 9.64 . . . 7 49 27.12 ... 6 43.30 // n A P. F. limb* in A. R. reduced to are . . . 18.69 A N. 8. limbs micr. in rev. . . . . 0.749 = 14.60 Variation of A. R. in 6m. 43t. ... — 4.40 Variation of declination in 6m. 43t. 0.37 . . . 14.29 Corr. for diam. of micr. wires . . 3.80 Observed N. 8. diameter . . . 13.03 h. m. A p at 7 41 n . 0.10 h. m. n 0.08 FEBRUARY 15, 1859. i Chronometer time of transit. Planet — Star. Thermometers. i Object. A. B. C. D. E. A., A* Air. Wet. * 6 s. s. 8. B. 8. h. m. B. Rev. m. B. Rrr. Inches. • o 1 Bernl ... 341 . . 16.5 99.5 43.5 55.4 6 18 99.51 +3.351 28.028 57.3 9 Mara . . . 8.F. 46.5 59.5 19.5 25.5 39.3 6 91 13.66 1.78 +2 43.15 -1.57} Ther. alt. 3 Bessel ... 341 3.6 16.5 29.6 42.5 55.5 6 23 29.54 3.92} 71°. 7 4 Mara . . . N.P. 59.0 13.0 24.7 38.0 636 11.96 3.10 3 42.42 0.821 Bar. red. to 32° F. 27.910 5 Bessel ... 341 19.5 25.5 38.5 51.3 4.5 638 38.46 3.75 6 Man . . . 8.F. 55.5 8.5 21.5 34.5 47.6 6 31 21.52 1.21} +9 43.06 -1.531 168 OPPOSITION OF MABS, 1851-62, FKBRCARY Id, 1*.V> < ..ntliinril. i j OkJM. CTra«ea»«ttr time of intuit. Mean of wire*. Micr. Planet— Star. Bar. n, . BBOTtaOJa A. B. C. D. E. A.. A.. Air. u-., Mr. «... b* Incbe*. • 7 Be*ad ... 341 47.9 0.9 13.9 96.9 39.0 6 34 13.16 +9.54 98.039 •1.9 •kl 8 Man . . . N.P. 98.8 41.8 54.7 7.7 90.8 6 3654.76 1.77 +941.60 -0.77 10 U Bevel ... 341 Man . . . 8.F. Be»el ... 341 57.0 38.8 0.5 10.9 59.8 13.5 93.3 5.8 96.5 36.9 18.6 39.4 49.9 31.8 59.4 63993.18 649 5.76 6 4496.46 9.30} 0.75 9.91 941.58 1.55} Ther. att. 68' .8 Bar. red. t.. .t! K. 37.9*3 11 Man . . . N.P. 41.5 54.5 7.7 90.8 33.7 6 47 7.64 9.18 941.18 0.73 13 Beaad ... 341 0.4 13.3 96.5 39.3 53.9 65096.34 9.80 14 Man . . . 8.F. 49.0 55.9 8.3 99.3 35.3 6 53 8.63 1.39 949.98 1.48 U Beiwl ... 341 6.5 19.5 33.5 45.4 58.5 6 55 33.48 2.49} U Man . . . N.P. 47.0 0.0 13.0 96.9 39.3 6 58 13.10 1.67 9 40.69 0.75} 17 Be*ael ... 341 38.3 51.3 4.4 17.4 30.3 7 0 4.34 9.47 18 Man . . . 8.F. 19.5 39.6 45.5 58.6 11.8 7 9 45.60 1.01 9 41.96 1.46 19 Be*ael ... 341 19.5 95.6 38.5 51.5 4.5 7 4 38.59 9.36 90 Man . . . N.P. 53.0 6.0 19.9 39.0 45.5 7 7 19.14 1.66 9 40.69 0.70 • Be-el ... 341 5.5 18.5 31.5 44.5 57.5 7 9 31.50 9.30 » Man . . . 8.F. 46.3 59.5 19.5 95.5 38.5 7 13 13.46 0.78 3 40.96 1.59 93 Bewel ... 341 51.4 4.5 17.5 30.5 43.5 7 14 17.48 9.19 M Man . . . N.P. 31.4 44.5 57.4 10.5 93.5 7 16 57.46 1.51 •j BJ.H 0.68 X Bewel ... 341 19.3 33.5 45.5 58.5 11.5 7 18 45.48 9.17 » Man . . . 8.F. 0.0 13.9 96.9 39.9 52.5 7 31 96.99 0.77 9 40.76 1.40 17 BaaMl ... 341 33.0 46.0 59.0 19.0 94.8 7 94 58.96 9.16} 98 Man . . . N.P. 19.8 95.3 38.5 51.4 4.5 7 97 38.50 1.48J 9 39.54 0.68 • Be— el . . 341 17.5 30.7 43.5 56.6 9.5 7 99 43.56 2.03} 10 Man . . . 8.F. 57.8 10.8 93.8 36.8 50.3 7 39 93.90 0.65 2 40.34 1.37} 31 Beaael ... 341 10.0 93.0 36.0 49.0 9.0 7 34 36.00 9.08 » Man . . . N.P. 49.0 9.0 15.0 98.0 41.0 7 37 15.00 1.48} 9 39.00 0.59} 33 BeaaH ... 341 t f 99.5 35.5 48.5 1.5 7 38 35.59 9.90 34 Man . . . 8.F. 49.3 9.9 15.3 98.3 41.5 7 41 15.39 0.84 939.80 1.36 15 Bvad ... 341 . 99.0 49.0 55.0 8.0 7 43 43.03 9.97 • Man . . . N.P. 54.5 7.5 90.5 33.7 46.7 7 4590.58 + 1.79 +938.55 -0.55 Remarks. Same remark! applicable an lait night. Mams. P. . . . NinetrwutU . Hewitt. h. m. i. . .7 1 59.13 m. ». Her. + 9 41.577 . . . 1.473 . . . / ir . . —0 98.71 MeaaN. P. . . . Ninelramrfu . ..76 59.79 + 9 40 390 ... 0 698 . . . —0 13.60 h. in. m. *. . . —4 19.00 h. m. >. . 6 57 47.19 ComdfcM for chronometer at 7 7 . . . — 4 19.01 . 7 9 47.78 5 0.66 A P. F. limb. In A. R. reduced to arc Variation of A. R. In 5m. It. . . . . . 17.80 A V. 8. limbt inter. In n-v . 0.775—15.10 0.93 Utaemtl P. F. diameter .... . . . 14 68 — 9.90 Obterred N. 8. diameter .... 19.67 h. m. A«at8M . it Ml h. m. A * ni 7 1 . 0.01 AT SANTIAGO DE CHILE. 169 FEBRUARY 16, 1853. « • Chronometer time of transit. Micr. Planet— Star. Bar. Thermometers I * Object. A. B. C. D. E. A a. A I. Air. Wet & 0 Z s. B. s. s. B. h m. u. Ecv. m. s. Rev. Inches. • • la Bessel ... 341 t f 46.0 59.0 11.8 24.7 6.38 58.91 —2.22 27.963 71.2 59.3 3 Mare . . . B.F. 17.5 30.8 43.8 56.5 9.7 6 30 43.66 ii. i..1 j +1 44.75 +1.58} Ther. att. 3 Bessel ... 341 2.5 15.3 28.2 41.0 6 33 15.28 5.03 73°. 7 4 Mars . . . N.I'. 33.8 45.8 58.6 11.5 34.5 « 3458.64 9.72 1 43.36 9.31 Bar. red. 1032° F. 27.840 5 Bessel ... 341 33.5 46.5 59.5 12.3 35.0 6 37 59.36 4.99 6 Mars . . . 8.F. 17.8 30.5 44.0 56.6 9.8 6 39 43.74 3.38 1 44.18 1.61 7 Bessel ... 341 48.0 1.2 14.3 97.0 39.9 6 44 14.08 5.25 8 Mars . . . NT. 31.0 44.0 57.1 10.0 93.2 6 45 57.06 3.89} 1 42.98 3.35} 9 Besscl ... 341 34.3 48.6 0.5 . . 25.5 6 47 59.96 5.38 / 10 Maw . . . N.P. 17.0 30.0 43.1 55.8 9.0 6 49 42.98 2.98 1 43.02 9.40 11 Bessel ... 341 54.5 7.5 90.5 33.3 46.0 6 53 20.36 5.60 19 Mare . . . S.F. 37.5 51.0 4.0 16.8 30.0 6 55 3.86 3.97} 1 43.50 1.62} 13 Bessel ... 341 37.7 50.6 3.6 16.6 99.6 6 57 3.63 6.71} 14 Mara . . . 8.F. 91.9 34.3 47.4 0.3 13.5 6 58 47.32 4.101 1 43.70 1.61 IS Bessel ... 341 10.0 33.0 36.0 49.0 1.8 7 035.96 5.791 18 Man . . . N.P. 9S.5 5.5 18.5 31.3 44.5 7 9 18.46 3.37 1 42.50 9.42} 17 Bessel ... 341 33.9 45.9 58.8 11.7 94.6 7 4 58.78 5.98 18 Mara . . . B.F. 15.9 39.0 42.0 54.8 8.3 7 6 41.98 4.33 1 43.30 1.66 194 Bessel ... 341 t t 37.5 50.6 3.5 16.3 7 8 50.51 5.97 • 90 Mara . . . N.P. 8.5 19.8 33.6 45.6 58.8 7 10 33.62 3.55 1 42.11 2.42 n< Bessel ... 341 53.0 5.0 18.0 30.8 43.5 7 13 17.86 6.16J 92 Man . . . S.F. 34.6 47.5 0.8 13.8 36.8 7 15 0.70 4.62 1 49.84 1.54} S3 Bessel . . .311 59.3 19.0 95.0 37.8 50.7 7 18 24.94 6.17 34 Man . . . N.P. 40.5 53.5 6.6 19.5 32.7 790 6.56 3.79 1 41.62 9.45 •4 Besscl ... 341 39.6 49.5 55.6 8.5 91.4 731 55.52 6.15, 95 Mara . . . S.F. 19.0 95.9 38.0 51.0 4.3 7 93 38.10 4.40 1 42.58 1.75} 37 Bessel ... 341 93.0 34.8 47.8 0.8 13.6 7 35 47.80 6.18 38 Man . . . N.P. 3.0 16.0 39.3 49.3 55.5 7 37 99.93 3.72 1 41.49 9.46 29 Bessel ... 341 10.5 93.5 36.5 49.5 2.3 799 36.46 6.19 30 Man . . . S.F. 59.5 5.5 18.5 31.5 44.6 7 31 18.53 4.46 1 43.06 1.73 31 Bessel ... 341 46.0 58.5 11.5 34.5 37.3 7 33 11.58 6.30 33 Mara . . . N.P. 96.5 39.5 53.7 5.5 18.6 7 34 52.56 3.74 1 41.00 3.46 33 Bessel ... 341 39.5 49.0 55.0 7.8 90.7 7 36 55.00 6.20} • 34 Mara . . . 8.F. 10.5 93.5 36.8 49.7 3.7 7 38 36.64 4.53 1 41.64 1.68} 35 Bessel ... 341 . . 40.5 53.4 6.4 19.3 7 40 53.43 6.17 36 Mara . . . N.P. 8.0 91.0 34.0 47.0 0.0 7 49 34.00 3.67} 1 40.57 2.49} 37 Bcssel ... 341 1.5 14.5 37.5 40.3 53.3 7 4437.42 6.07} 38 Man . . . S.F. 43.0 56.0 9.0 92.0 35.0 7 46 9.00 4.46 1 41.58 1.61} 39 Bessel ... 341 53.0 6.0 19.0 33.0 44.7 7 48 18.94 6.17} 40 Mare . . . N.P. 33.3 46.4 69.5 13.4 35.4 7 49 59.40 3.68 1 40.46 9.49} 41 Bessel ... 341 18.8 31.5 44.6 57.5 10.5 7 52 44.58 6.16 49 Mara . . . B.F. 59.9 12.9 25.8 38.8 51.8 7 54 25.84 4.37 1 41.96 1.79 43 Bessel ... 341 5.4 18.3 31.0 44.0 56.6 7 57 31.04 6.01 44 Mara . . . N.P. 45.0 58.0 11.0 34.0 37.0 7 59 11.00 3.55 1 39.96 9.46 45 Bessel ... 341 49.5 55.5 6.5 21.5 34.5 8 1 8.50 5.95} 48 Mars . . . S.F. 93.4 38.4 49.4 3.3 15.6 8 2 49.42 —4.17 +1 40.93 +1.78} 22° 170 OPPOSITION OF MABS, 1851-52, KK HIM \ RY 1«, IHM- COB* ,„„..!. 1 C ' • ' tet 1 1 nir at imwl - Micr Planet- -fur. Bar r MM j. l.r- 1 OHM. A. B. C. D. E. Ac* At Air. Wrl i «7 Beead ... 941 38.0 51.0 4.0 16.8 99.8 8 6 3.93 -4.85 97.983 58.7 .v..:i 48 Mm . . . N.P. 17.5 30.5 43.7 56.6 9.7 8 7 43.60 3.34 +1 39.68 +9.51 Ther. alt. 49 Bt~rl ... 941 39.6 43.0 56.0 8.8 91.8 8 9 56.04 S.79 70'. 0 at Man . . . 8.F. 10.5 93.5 38.5 49.5 9.5 8 11 36. SO 3.94 1 40.46 1.78 Bar. ml. na r. 97.850 SI B«a*l ... Ml 6.S 19.5 33.5 45.5 58.4 8 13 33.48 5.69 a Mara . . . N.P. 45.8 S8.« 11.7 91.8 37.8 8 15 11.74 3.UJ : • • 9.47J a BMM! ... 341 53.5 t.f 19.5 31.3 45.1 8 17 19.36 5.49) M Man . . . N.P. 33.5 45.5 58.5 11.5 -.•I.:. 8 18 58.50 9.94 1 39.14 9.55, 55 BeaaH ... 341 59.8 13.8 98.0 39.8 51.6 8 91 95.80 5.341 a Mara . . . 8.F. 39.8 SI. 8 5.9 18.8 39.0 893 5.86 9.501 1 -in.!* 1.84 S7 ttrttel ... 341 31.0 33.8 46.8 S9.8 19.6 8 94 46.80 5.99 SB Man . . . B.F. 0.5 13.8 96.5 • • 59.8 8 96 96.56 3.49 1 39.78 1.80 St Brmrl ... 341 SS.O 7.5 91.0 34.0 46.8 8 28 90.86 5.111 « Man . . . N.P. 33.5 46.5 59.5 19.5 95.7 899 59.54 —9.55 +1 38.68 +9.58, Remarks. a Blurred and unsteady during all the observation! from c Much better. a to i. d Sharp and steady. All that follow are fine ob*ervatloni. Results. h. m.a. m. i. Rev. / ;/ Mean 8. F. . . Fifteen traniiu . . . 7 30 58.53 + 149.181 . . . +1.694 . . . . =033.03 Mean N. P. . . Fifteen traniiu . . . 7 33 58.39 4- 1 41.051 . . . -f-9.456 . . . . =047.87 h. m. m. >. h. m. i. Correction for chronometer at 7 31 . . . — 4 14.57 7 26 41.95 Correction for chronometer at 7 34 . . . —4 14.58 7 99 43.81 3 1.86 H it A P. F. Ifanbt in A. R. reduced to arc . . 16.95 A N. 8. limlw micr. in rev. . . . . 0.769=14.85 Variation of A. R. in 3m. 3>. . . . — 1.78 Variation of declination in 3™. 2i. . — 0.11 Observed P. F. diameter .... . . 15.17 Corr. for diain. of rniu. wirci . . — 9.90 Observed N. S. diameter .... 19.54 h. m. /' h. in. II A o «l 7 26 . 0.03 A o at 7 99 . 0.05 FEBRUARY 17, 1859. 4 Chronometer time of trannll. Planet — Star. Thennometeni. 1 Bar 1 Object. A. B. C. D. E. Ac. A i. Air. Wet. i l. a. a. a. a. h. m. a. Rev. a. Rev. Inchea. • • 1 •wad ... 341 53.6 C.6 19.8 39.9 46.0 6 30 19.76 43.66 .-. M 59.8 54.6 « Mara . . . 8.F. . . . . 9.0 99.3 5.0 6 31 9.16 4-7.571 4-49.40 43.911 Ther. alt. 3 BMM! ... 341 38.5 S1.S 4.5 m f t 4 6 36 4.43 -1.60 70* .3 4 Man . . . N.P. 97.0 . . 63.9 6.1 19.9 6 3653.13 4-3.19 48.70 4.79 Bar. red. to 38' F. 97.846 S •••Ml ... 141 O.S 13.8 96.5 . . . . 6 3996.43 -1.661 • Man . . . B.F. «.« 3.0 16.0 99.0 49.3 6 40 15.96 I-.-*'. 4-49.53 +4.05 AT SANTIAGO DE CHILE. 171 FKIUU Al< Y 17, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. thermometers. A. B. C. D. E. A a. A ,5. Air. Wet. 8. s. a. s. l. | h. m. s. Rev. s. Rev. Inches. • • 7 Bessel ... 341 37.0 50.0 3.0 t t 6 44 2.93 — 1.691 27.960 59.8 54.6 t Man . . . N.P. 96.0 . . 51.5 4.3 17.5 6 44 51.59 +3.001 +48.66 +4.70 9 10 11 Bessel ... 341 Mara . . . S.F. Beiwel ... 341 54.5 43.5 7.5 96.9 80.5 9.5 3.6 33.5 36.0 6 48 30.43 6 49 9.60 6 52 3.58 —1.901 +2. 11J —1.93 49.17 4.02 Ther. att. 70". 3 Bar. red. to 32° F. 27.846 a Mara . . . N.P. • • 37.5 50.5 3.5 I .. 6 53 50.49 +2.81 47.91 4.74 13 a Bessel ... 341 . . , , 11.7 . t 6 54 11.68 —1.94 14 Mare . . . 8.F. • • 47.5 0.8 13.6 • • 6 55 0.63 +2.23 48.95 4.16 a Bessel ... 341 . . . . 95.6 . 6 56 25.58 — 1.701 / 16 Man . . . N.P. 0.5 13.5 26.5 • • 6 57 13.49 +3.07 47.91 4.771 17 Bessel ... 341 . . . . 37.6 . . , , 6 58 37.58 -1.771 18 Mara . . . 8.F. • • 13.4 96.3 39.3 • • 6 9926.33 +2.331 48.75 4.11 19 Bewel ... 341 . . 46.5 . . , . 7 0 46.48 —1.871 90 Mara . . . N.P. • • 91.9 34.0 47.0 • • 7 1 34.06 +3.961 47.58 4.84 u Benel ... 341 . . 50.0 . f 7 3 49.98 —1.90 93 Mara . . . S.F. 35.5 38.5 51.4 • • 7 4 38.46 +3.31 48.48 4.11 33 Busel ... 341 . . 57.5 t t f 7 5 57.48 —1.92 94 Man . . . N.P. • • 31.0 44.6 57.9 7 6 44.56 +9.89 47.08 4.81 . 35 BfWMl ... 341 . . 16.0 7 7 15.98 -1.97 96 J7 • Mara . . . S.F. Brssel ... 341 Man . . . N.P. • • 91.9 4.3 39 0 17.2 • • 7 8 4.93 7 10 38.96 7 11 35.99 +3.17 — 1.941 +3.83 48.35 47.01 4.14 4.771 13.0 96.0 39.0 • • • tti-n-l ... 341 t f 53.0 . f 7 19 51.98 —3.03 30 314 39 33 34 35 35 37 38 38 40 41 49 Mara . . . 8.F. Bewcl ... 341 Mara . . . N.P. Bessel ... 341 Mara . . . S.F. Bewel ... 341 Mara . . . N.P. Benel ... 341 Man . . . S.F. !!•- . l ... 341 Mara . . . N.P. II— .-1 ... 341 .Mara . . . S.F. • • 97.0 40.0 48 0 53.0 7 13 39.99 7 15 47.98 7 16 35.06 7 18 7.58 7 18 55.39 7 90 16.98 7 91 3.49 7 39 11.98 733 59.53 734 33.08 7 95 19.53 7 27 37.38 7 98 34.56 +3.09 -a. 16 +3.67 -3.051 +2.07* -3.10 +2.73 —2.091 +1.99 —3.304 +2.68 — 3.16J +3.00J 48.01 47.08 47.81 46.51 47.55 46.45 47.18 4.18 4.83 4.13 4.83 4.081 4.881 4.17 • • 99.0 35.1 7.6 46.1 • • • • 49.5 55.3 17 fl 8.4 • • • • 50.5 3.5 19 0 16.5 • • • • 46.5 59.6 33 1 19.5 • • • • 6.5 19.5 37 4 33.6 • • • • 11.6 94.6 37.5 • • 43 Benel ... 341 . f 39.0 . 7 39 38.98 —9.14 44 Mara . . . N.P. • • 13.5 95.9 38.5 • • 7 30 35.49 +2.70 46.51 4.84 45 II.—. 1 ... 341 , f . , 36.0 7 31 35.98 —2.16 46 Mara . . . S.F. • • 10.3 93.0 36.0 • • 7 32 23.08 +2.01J 47.08 4.171 47 Besnel ... 341 t . . 34.0 . t 7 33 33.98 —2.16 48 Man . . . N.P. • • 7.3 90.3 33.3 7 34 20.29 +2.70 46.31 4.66 49 Beaael ... 341 , 27.0 t , 7 35 26.98 — 2.09J 50 Mara • . . S.F. • • 1.5 14.3 27.4 • • 7 36 14.39 +2.05 47.41 4.14J 51 Bevel ... 341 t m 30.5 . . 7 37 30.48 —9.06 SO Mara . . . N.P. 3.5 16.5 39.5 7 38 16.49 +2.81 +46.01 +4.87 172 OPPOSITION OP MARS, 1851-62, FKHKl AKV 17,1-3* tonUuued. No. for ntrnacr. Object. Chronometer time of tran»il. Mean or win- Micr. Planet— Star. A. B. C. D. E. A«. A A Air. Wet. a. •> •j a. m. b. m. •. Her. •L BCT. Inchu. • • a 54 55 56 87 58 59 60 Cl (W 63 64 65 M 67 68 69 70 71 7i 73 74 75 76 77 78 79 80 61 --' -: 85 86 87 88 M M n • M « M BMCI ... 341 Man . . . S.f. Beoel ... 341 Mara . . . N.P Beoel ... 341 Man . . . 8.F. Beoel ... 341 Man . . . N.P Bevel . . . 341 Man . . . 8.P. Beoel ... 341 Man ... N.P Beoel ... 341 Man . . . S.r. Beoel ... 341 Man . . . N.P. Beoel ... 841 Man . . . S.F. Beoel ... 341 Man . . . N.P. Bowel ... 341 Man . . . S.F. Beoel ... 341 Man . . . N.P. Bead ... 341 Man . . . S.F. Beoel ... 341 Man . . . N.P. Beuel . . . 341 Man . . . 8.F. Beoel ... 341 Man . . . N.P. Beoel ... 341 Man . . . S.F. Beoel ... 341 Man . . . N.P. Beoel ... 341 Man . . . S.F. Beod ... 341 Man . . . N.P. Beo.1. . . Ml Man . . . 8.F. •«•• . . . Ml M«r» . . . N.P. • • 53.3 1.0 38.8 18.5 5.4 98.1 14.0 5.3 51.7 8.5 18.4 97.0 4.6 • • 7 39 18.48 7 40 5.36 7 41 38.08 7 49 13.99 7 44 5.18 .7*4 51.69 7 46 8.48 7 46 54.16 7 49 45.08 7 50 31 .59 7 51 54.28 7 53 39.73 7 54 1.08 7 54 47.36 7 56 15.38 7 57 0.36 7 58 10.48 75856.79 8 0 13.38 8 0 58.49 8 3 7.48 8 353.49 8 5 33.48 8 6 18.43 8 736.98 8 83:2.66 8 10 6.98 8 10 50.93 8 19 56.58 8 13 48.33 8 15 4.98 8 15 49.53 8 17 7.98 8 17 53.49 8 90 6.48 83050.86 8 31 13.98 8 91 59.49 8 93 33.38 8 94 90.49 8 96 15.68 897 0.59 898 3.58 8 38 47.53 —3.05 4S.1U —1.971 49.901 -•-'.I'i. 49.131 -1.95J 43.91 — 1.S9 49.301 —1.84 43.07 —1.79 +9.39 -1.78J 43.1SJ —1.73 42.48J —1.70 43.33| -1.61 43.56 -1.53 43.40 -3.96 40.961 —3.90 41.71 —3.091 41.08 — 3.09J 41.88 -9.95 41.94 — S.931 49.03J —9.89 41.40 -9.751 43.30 -9.se, 41.68 -9.53 49.17 446.88 45.91 46.51 45.68 46.51 45.45 46.38 45.08 46.31 45.91 46.01 44.95 45.68 44.65 45.75 44.55 45.51 44.38 45.51 44.11 45.01 443.95 44.15 4.88 4.18 4.861 4.191 4.91 4.17 4.91 4.90{ 4.931 4.17 4.93 4.93* 4.91 4.171 4.971 4.19 4.07 4.93 4.951 4.961 45.00 turn Tner. an 66'. 7 Bar. red to 33- F 37.860 59.0 53.3 • • 41.0 18.6 96.6 54.3 45.1 31.7 54.3 39.8 1.1 7.9 44.5 53.8 • • • • 34.3 47.5 15 3 0.3 • • • • 47.0 0.5 10 5 13.6 • • • • 43.8 56.8 13 3 9.8 • • • • 45.S 58.S 7 6 11.5 • • • • 40.6 S3.S 33 5 6.4 • • • • S.S 18.5 37 0 31.3 • • • • 9.8 23.7 6.3 35.5 • • • • 33.0 51.0 56.6 3.8 • • 39.4 43.3 5.0 55.3 • • • • 36.3 49.6 8 0 9.5 • • • • 40.5 53.5 6.5 6.5 • • 37.6 48.5 7.5 47.6 34.4 51.0 14.0 59.5 36.4 90.5 15.6 0.6 3.6 47.7 4.0 13.5 33.5 13.6 0.5 • • AT SANTIAGO DE CHILE. FEBRUAKT 17, 185*— CoMtianed. Remarlt. L,*Mimoaam*f»omlimm*itorm; later they 173 became better, am tke work » ray 8. P. N P. k- m. a. 7 3323 9 7» 0.76 — 4 17.37 — 4 17.38 + 47.230 + 4S.13 ECT. + 4.145 + 4.888 > lid. Ua*e 8. F. • «it tee N. P. = 1 90.7» = 1 34.84 h.a*. •. 799 6.9 731 43.38 237.16 A P. P. Ma- A. L Trrt-if "•-•-• u.n — 1.44 14.73 0.08 0 ... t>u>7»-: PKBRrAHT II froai «M»art«' mmmij, aa4 * «* Ml jiiaiilli M Bake i All J t.l mt \i IT 19, issa. . m . . a.-.- = • •aTO*>O*H>f icv u«a*r « Micr rtMmn— •tv. 1 OHM. A. g. c. D. E. Am. AA Aar. Wet. - - 0 t •r a. ,, •^ k.av •. BCT. m. Eer. latCfcWat. • • z I Man . . . B.F. 50.7 4.0 n.* 300 ^ f «4f u.m +3.48J •7.974 81 .t 57.7 fl Bod ... Ml • • 5»J 8.0 »•» M.O 847 7.W -3J« —51.05 +7.07J Man . . . m.t. Uj ».f 4«.5 4 4f ».M +3.84 Tkwr.ttt. •••Ml Ml . . , «.7 . . 48.0 « M Jl.«3 — «.M 5S.40 7.8* '.- ' •". S7.660 Man . . B.F. 5.5 18.8 31.7 4I.« . . ( S3 MM +3.0SI •awl. . . Ml - - • • S.8 • • • - « 54 8.78 —1 11| 51.17 7.n Han . . . M.P. 14.5 XSA 4».5 . . . . 8M 40.43 +3.«4 •oaH ... MI • • • • 3J.O • - «.« (5733.K —4.11 M.S3 7.7S t Man .VF. 30.5 43.5 *l.4 . . • 905C.3B •f*-*t M •caari . Ml • • 3S.3 47.5 1.8 14.0 7 »47.«8 — 4.«7 si.iw 7.87J U Man . . . ft. 3-.S 51.5 4.« . , . . 7 4 4.4* +3.4V » t*m*. . . M 31.5 44.5 • • «3J 7 4 57.48 —4.33 53.09 7.77 13 MOT . . . 8.F. 3.5 M.» ».8 m r . , 7 7*0.0 -*.« 14 BcOTd . . 341 • • 8.8 «.* MA 47.8 7 89.83 —4.44 51.90 7.10 U Man . . . W.P. 17.4 30J 43.4 , . , 7 11 43.38 +*-« M •OHJ ... Ml 10.5 »J 38.4 • • • - 7 1231.30 -*-M» '•- 7.7*» n Man . . . H.P. IOJ S3J M.S f f f f 7 103C.3I ,1.4,j K •owl. . . Ml • • • - «§.« • • • • 7MM.78 -S.«| ' 7.11 M Man . . . ».P. S.J 18.5 31J . f 7 M 31.43 +JJS 9* _*. . . Ml • • 11.7 *" • • • • 7KM.81 -4-i-l -«3.3B +7.751 174 OPPOSITION OF MABS, 1851-52, miiui \n\ i'.'. i--, ; « „„.!. a 1 (>«•«. CbrooocMter lime of tran.it. Mean of wires Mi.-r. Planet— Star. Bar. '': KJMM <• '- A. B. C. D. E. A«. 41. Air. \v.-i I,, m. i. Rev. a. Her. Inchea. • • SI Man . . . B.F. 48.8 1.8 14.8 7 89 14.73 +1.471 97.976 60.9 55.3 • Bevel ... 341 41.3 54.5 7.7 . . 33.5 7 30 7.48 —5.61 —58.75 +7.<»1 • M as M.ra . . . N.P. •••Ml ... 341 Hut . . . 8.F. 49.5 96.5 51.1 55.5 49.S 4.9 8.5 9.5 17.9 15.5 98.S 7 39 8.43 7 33 9.50 7 35 17.09 4-9.30 —5.53 +1.58 54.07 7.83 Ther. au. 67V6 Bar. red. to a y. H.HI . I 87 -- • • 31 • 33 34 Br-rl ... 341 • • 67.5 10.3 6.6 93.3 35.3 7 3S 10.36 7 38 6.58 7 39 0 48 — S.47J +9.3J —5 47 +1.81 —5.44 +2.3H —5.40 +1.65 —5.331 53.97 53.90 53.60 54.10 —53.00 7.05J 7.79 7.05 7.761 +7.0JJ Bewel ... 341 Man 8 f 0 5 50.0 7 39 58.98 7 40 51.58 7 43 1.58 7 43 55.68 7 44 91.96 7 45 14.98 Be«el ... 341 Man N.P. • • • • 51.6 1.6 • • • • Be-eJ . . . Ml Man 8 F. • • • • 55.7 93 0 • • • • Bene! . • . 341 • • • • 15.0 • • liernarts. Macb luxe. The planet blurred, tlmugli tolerably steady, but the comparing star so dim that the mva-ure* of it are in many cuea very doubtful. Al 74. 45*1. the lamp* went. Rtsultt. h. m. >. s. Rev. / '/ Meu 8. F. . . Nine traruiu . . . 7 17 18.18 — 52.340 .... +7.083 . . • . =3 18.05 Mean !». P. . . F.ight transit* . . . 7 17 80.79 — 53.895 .... +7.784 . . . . =931.71 h. m. m. n. h. m. •. Correction for chronometer at 7 17 . . . — 4 39.49 . . . 7 12 55.69 — 4 22.49 . . . 7 12 58. *3 Interval . . . 8.54 it ii A P. F. limb, in A. R. reduced to arc . . 14.33 A N. 8. limb> micr. in rev. . . . . . 0.701 = 13.«« Variation of A. R. In 3t . ± 0.00 Variation of declination in 3t. . . . ±0.00 Observed P. F. diameter 14.39 Corr. for diarn. of micr. wirea . . . . - 2.90 ObMrved N. 8. diameter . . . 11.46 h. m. n h. m. • A • at 7 13 . 0.14 A * at 7 13 . 0.15 FEBRUARY 3O, 185)1. 1 4 i Object. Chronometer lime of IraniUt. Mean of wires. Micr. Planet— Star. Bar. I'M. rill. mi. 1. i- A. R. C. D. E. Ac. *i. Alr. Wet. «. i. a. i. §. h. m. a. Rev. m. a. Rev. Incliea. • Man . . . 8.F. t.7 15.7 98.8 41.6 54.7 6 19 38.70 +8.731 98.019 69.5 •'.-' 8 B«*Ml ... 341 . SO.O 3.0 . . . . 6 91 9.96 -4.85J -1 34.96 +7.59 1 4 t Man . . . N.P. ••Ml ... 341 Man . . . HF. 56.0 4.4 ».7 45.8 17.5 91.8 56.8 30.5 35.0 435 47.8 56.6 6 83UI.M 6 94 5H.16 6 97 30. 50 +3.93 —5.06 +1.90 1 38.30 8.39 Ther. ml. 73°. 0 Bar. rert. to 3-2' F. Ii m • •mrl ... 341 • • H.t 6.0 18.8 31.6 6 99 5.88 —5.67 -1 35.38 47.57 AT SANTIAGO DB CHILE. 175 FEBRUARY 2O, 1853— Continued. » Chronometer time of transit. Planet— Star. 'hermometers I M e ; Micr. Bar M £ Object. A. B. C. D. E. A a. A I. Air. Wet. g t 8. >. s. B. ic b. in. 8. Rev. 111. 8. Rev. Inches. • O z 7 Mare . . . N.P. 99.5 42.3 55.4 8.3 31.3 6 30 55.36 +2.49 28.019 62.5 59.9 8 Bessel ... 341 6.0 18.5 31.5 44.5 57.3 6 32 31.56 —5.79J —1 36.20 +8.281 Ther. alt. 9 Man . . . N.P. 9.5 99.6 35.5 48.5 3.0 6 34 35.62 +2.23 73°. 0 10 Bessel ... 341 47.0 59.8 19.0 95.0 . . 6 36 12.40 —6.03 1 36.78 8 26 Bar. red. to 32° F. 27.897 It Mara . . S.P. 16.3 99.4 49.8 55.3 8.5 6 38 49.46 + 1.42 12 Bettel . . 341 52.5 5.5 18.5 31.9 44.0 6 40 18.34 -6.12 1 35.88 7.54 13 Mara . . . 8.F. 39.3 59.4 5.5 18.5 31.7 6 49 5.48 +1.25 14 Beuel ... 341 15.5 98.5 41.5 54.5 7.3 6 43 41.46 —6.30 1 35.98 7.55 15 Mara . . . N.P. 5.0 18.0 31.9 44.1 57.3 6 48 31.13 +4.07J 16 Berael ... 341 49.0 55.9 8.9 21.2 33.8 6 50 8.08 — 4.27J f 36.96 8.35 17 Mara . . . S.P. 39.0 59.0 5.9 18.1 31.0 8 59 5.06 +3.17 18 Bewel ... 341 • • 96.5 41.8 • • 7.5 65341.63 — 4.391 1 36.57 7.56J 19 Mara . . . N.P. 17.8 30.6 44.0 56.6 9.6 6 56 43.68 +3.72 90 Beuel ... 341 55. 3 8.9 91.4 34.3 47.0 6 58 91.94 — 4.52J 1 37.56 8.24} 91 Mara . . . 8.F. 8.0 91.9 34.3 47.3 0.5 7 1 34.26 +2.85 93 Be»«el ... 341 45.0 58.0 10.8 93.7 36.5 7 3 10.80 —4.681 1 36.54 7.531 93 Mara . . . S.P. 32.0 45.0 58.0 11.0 94.0 7 4 58.00 +2.67 M Beoel ... 341 8.6 91.8 34.8 47.8 0.6 7 634.79 -4.85 1 36.72 7.52 Urn Mara . . . N.P. 33.9 48.5 59.5 19.8 95.8 7 959.56 +3.34 96 Bessel ... 341 12.5 • • 37.5 50.6 3.5 7 11 37.78 —4.90 1 38.92 8.34 97» Mara . . . N.P. 17.7 31.0 44.0 57.0 9.7 7 13 43.88 +3.29 98 BeaMl ... 341 56.9 9.0 93.3 35.3 48.0 7 15 39.16 -4.96* 1 38.28 8.35} Mi Mara . . . 8.F. 4.5 17.6 30.5 43.6 56.5 79030.54 +2.50J 30 Beuel ... 341 49.3 55.0 8.0 90.8 33.7 799 7.96 — 5.051 1 37.49 7.56 31 J Mara . . . N.P. 55.5 8.5 t f 35.0 48.0 794 91.74 +3.18i 39 Beucl ... 341 34.3 47.3 0.4 13.3 96.2 7 98 0.30 —5.08 1 38.56 8.961 33 Mara . . 8.F. 56.3 9.5 93.5 35.5 48.5 79892.46 +2.38 34 Beiael ... 341 • • 47.0 59.8 19.8 95.7 7 29 59.86 —5.17 1 37.40 7.55 35 Mar. . . . N.P. 99.9 49.5 55.6 8.5 91.5 7 3355.46 +3.07J 38 BeMcl ... 341 8.0 21.0 34.0 48.8 0.0 7 34 33.96 —5.18 1 38.50 8.25} 37 Mara . . . B.P. 33.0 46.0 59.0 19.9 95.0 7 37 59.04 +9.40 38 Bmel ... 341 10.6 93.8 36.8 49.8 2.6 7 39 36.73 — 5.19J 1 37.68 7.59J 39 Mara . . . N.P. 59.0 19.5 95.3 38.8 51.7 7 41 35. 4* +3.11 40 Bessel ... 341 38.5 51.9 4.2 17.1 30.3 7 43 4.96 —5.13 1 38.80 8.94 41 Mara . . . 8.F. 30.8 43.8 56.8 9.7 99.6 7 46 56.74 +2.45 49 Bewel ... 341 9.5 99.0 35.3 48.0 1.0 7 48 35.16 — 5.10J 1 38.49 7.55J 43 Mara ... N.P 13.0 95.0 38.0 51.0 3.7 7 50 37.94 +3.19 44 Berael ... 341 51.5 4.9 17.5 30.0 43.0 7 59 17.24 —5.07 1 39.30 8.96 45 Mara . . . 8.F. 19.5 95.3 38.1 51.1 4.5 7 54 38.30 +2.54 48 Be»el ... 341 51.0 3.6 • • 30.0 49.6 7 56 16.80 —5.02 1 38.50 7.56 47 Man ... N.P 10.7 93.6 36.8 49.8 9.5 7 59 36.68 +3.36J 48 Bewel ... 341 • • 3.5 16.5 99.4 42.5 8 1 16.51 —4.93 1 39.83 8.9H 49 Mara . . . 8.F. 47.3 0.5 13.4 96.3 39.5 8 3 13.40 +2.73 50 Bewel ... 341 98.1 39.0 51.6 4.6 17.7 8 451.60 —4.86 1 38.40 7.59 51 Mara ... N.P 9.1 99.0 35.9 48.1 1.9 8 6 35.12 +3.50 59 Bexel ... 341 48.8 1.7 14.9 97.8 40.6 8 8 14.76 —4.74 -1 39.64 +8.94 176 OPPOSITION OF MABS, 1861-52, FB IIUl \ 10 'ii> iwta-coBt ,,,,,..1. i C ' , . L ' l.r in... oi tra».i U Flanrl- •Star. Bar 1 H BM (pten. 1 t*Mb A. B. C. 0. E. A«. A I. Air. Wet. IT I J ]'• \ • • I i3 Man . . . K.F. 47.9 1.0 14.0 97.0 40.9 8 10 13.8S +S.91J 88.014 63.8 i7.1 54 Be~d ... 341 87 .8 40.3 53.9 6.0 19.0 8 11 53.14 '."-. -1 39.-J6 +7.54 Ther. alt. 45 Man . . . N.P. 39.5 48.0 58.8 11.7 95.0 8 1358.80 +3.781 6SI-.8 56 Bewd ... 341 13.0 95.7 38.6 51. 6 4.8 8 IS 36. 70 -4.57 1 3a.»0 8.29J Bar. rod. i...u r. •j; .'.-•: 51 Mara . . . 8.P. 4.6 18.0 31.0 43.7 57.0 8 17 30.86 +3.14J 58 Bewel ... 341 44.0 57.3 9.8 93.0 36.0 8 19 10.03 —4.44 1 39.16 7.S8J SB Man . . . N.P. 35.6 48.S 1.5 14.5 97.6 8 91 1.S9 +4.00 to BwMi ... 341 15.5 96.7 41.8 51.8 7.6 893 41.68 —4.88 -1 40.16 +8.98 Remarks. Except the few observations otherwise noted, toe evening lias been good and rocuurei rati«factor) . a Blurred. 6 Worn. c Tolerably good. i Sharp. Results. b. m. i. m. a. Rev. / ti Mean 8. P. . . Fifteen transits . . . 7 19 3.31 — 1 37.171 . . . +7.560 . . . . =987.34 Mean N.P. . . Fifteen tnuwiu . . . 7 23 13.59 -1 38.333 . . . +8.964 . . . . =841.06 h. m. m. >. h. m. «. OofrcctioD. for chronometer at 7 19 . . . —4 85.37 Santiago rid. time 8. P . . 7 14 37.94 Cofnction for chronometer at 7 83 . . . 4 85.38 Santiago aid. time N.P. ... 7 18 48 91 . . 4 10.87 // n A P. P. limbt in A. R. reduced to arc . . . 17.43 0 704—13 79 Variation of A. R. in 4m. lOf. . . . . . 1.87 Variation of declination in 4m. 10*. . . 0.01 ObKired P. P. diameter .... . . . 15.56 Corr. for diam. of micr. wirct . . — 2.80 11 51 h. m. // h. m. // A • at 7 18 . 0.15 Apat7 80 . 0.16 FBI ;ut \i LY >1. 1859. . 1 C ! .:. . • ter time at tranal U Mean of wire* Micr Planet- -Bur. Bar Tliermoi ncten. k Object. A. B. C. D. E. Ac. Ad. Air. Wet. £ 1 , Man . . . 8.P. 1.0 14.3 97.9 40.9 53.4 68537.89 +1.39 97.906 73.8 60.8 9 BttMl ... 341 18.9 . . 44.3 66.9 10.0 6 97 44.10 -6.08 -8 16.88 +7.47 3 4 5 Mara . . . N.P. Bewd ... 341 Mara . . . 8.F. 0.0 18.5 51.8 13.0 31.5 6.0 98.9 44.5 18.0 39.0 57.4 30.8 69.3 10.9 43.6 6 34 96.10 6 36 44.43 39 17.84 +3.99 —I. •-«•>! +3.08 8 18.33 B.21J Ther. att. • .1 i..:w r. 97.773 6 B4MM1 ... 341 9.5 83.5 35.3 48.9 1.0 41 35.30 —4.45 9 17.46 7.47 7 Mara . . . N.P. 5.0 18.9 31.0 44.0 57.9 44 31.08 +3.54 8 Bend ... 341 36.5 49.6 9.5 15.6 46 49.56 -4.65J 9 18.48 B.lBj t U .Mar. . . . 8.P. Bowl ... 341 30.6 49.0 44.3 9.0 67.3 15.0 10.9 97.8 93.5 41.0 48 57.18 51 14.96 +9.60J -4.87J —9 17.78 +7.48 AT SANTIAGO DE CHILE. 177 FEBRUARY il. 1 853— Continued. .I Chronometer time of transit. Planet— Star. 'lu'rinnmcter*. g . ... Micr. Bar 1 Object. A. B. C. D. E. A a. At Air. Wet. 1 d s. s. s. B. 1. h. m. 8. Eev. m. B. Rev. Inches. * 9 11 Mars . . . 8.F. 47.8 1.0 14.0 97.0 40.0 6 54 13.96 +2.37} 27.906 73.8 60.8 13 Beuel ... 341 6.0 18.8 31.6 44.5 57.5 6 56 31.68 —5.10 —3 17.73 +7.47} Thcr. nil 13 Mare . . . N.P. 35.8 49.0 2.0 15.0 98.0 7 1 1.96 +2.74 76°. 7 14 Bessel ... 341 55.9 8.0 91.0 34.0 46.8 7 391.00 —5.39 3 19.04 8.13 Bar. red. to 32° P. 27.773 15 Mara . . . N.P. 53.7 6.8 19.8 39.8 46.0 7 5 19.82 +3.63} 16 Besael ... 341 • • 36.0 • • 53.0 4.8 7 7 38.98 — 5.53 2 19.16 8.15} 17 Man . . . B.F. 16.9 29.3 43.4 55.3 8.4 7 14 42.33 +1.67} 18 Bessel ... 341 • • 48.0 0.7 13.7 26.6 7 17 0.78 —5.78 2 18.46 7.45} 19 Man . . . N.P. 36.4 39.5 59.5 5.4 , r 7 18 59.41 +3.37} 90 Bessel ... 341 • • 59.0 12.0 35.0 38.0 7 21 19.04 —5.79} 2 19.63 8.17 91 Mara . . . B.F. 56.7 9.7 93.7 35.7 49.0 7 24 22.76 +1.65 • Bessel ... 341 • • 38.6 41.6 54.6 7.6 7 96 41.63 —5.79 3 18.87 7.44 93 Mara . . . N.P. 98.3 41.8 55.0 7.8 21.0 7 98 54.78 +3.31} 24 Bessel ... 341 49.0 1.8 14.8 97.7 40.6 7 31 14.78 —5.87 9 30.00 8.18} 95 Mara . . . B.F. 40.0 53.9 6.1 19.1 32.5 733 6.18 + 1.58} • Bessel ... 341 59.5 19.9 95.3 38.0 51.0 7 3595.90 Ml| 3 19.03 7.37 97 Man . . . N.P. 54.6 7.6 90.7 33.6 46.6 7 37 90.69 +9.37 98 Bessel ... 341 • • 97.6 40.7 53.8 6.6 73940.72 —5.63} 2 30.10 8.30} 39 Mara . . . 8.F. 41.5 54.8 7.8 30.8 34.0 7 43 7.78 + 1.69 30 Bessel ... 341 • • 14.3 37.3 40.3 53.0 7 4597.33 —5.74 3 19.45 7.43 31 Mara . . . N.P. 44.9 57.0 10.9 33.3 36.4 7 47 10.30 +3.42 38 Bessel ... 341 5.0 17.8 30.6 43.6 56.5 7 49 30.70 —5.70 9 30.50 8.12 33 Mara . . . 8.F. 59.0 4.8 17.8 30.7 43.7 7 51 17.80 +1.76 34 Bessel ... 341 11.5 94.5 37.5 50.4 3.4 7 53 37.46 —5.68 9 19.66 7.44 35 Mara . . . N.P. 8.5 91.6 34.7 47.6 0.6 7 56 34.60 +9.60 36 Bessel ... 341 • • 42.6 55.6 8.5 91.5 7 58 55.58 —5.56 9 90.98 8.16 37 Mara . . . 8.F. 93.5 36.5 49.5 ,..:. 15.7 8 1 49.54 + 1.98} 38 Bessel ... 341 • • 56.5 9.5 93.5 35.4 8 4 9.51 —5.50 3 19.97 7.48} 39 Mara . . . N.P. 39.5 59.5 5.6 18.6 31.5 8 6 5.54 +2.74 40 Bessel ... 341 • • 11.5 96.5 39.5 53.5 8 896.53 —5.37 •j •:'.••>:' 8.11 41 Man . . . B.F. 0.5 13.7 38.7 39.7 53.7 8 11 96 66 49 Bessel ... 341 34.0 47.0 59.8 13.0 8 13 46.98 —5.23} 390.33 7.44} 43 Man . . . N.P. 33.6 36.3 49.4 3.3 15.4 8 15 49.40 +3.07 44 Bessel ... 341 • • 57.5 10.5 33.4 36.3 8 18 10.46 —5.08 321.06 8.15 45 Man . . . B.F. 54.5 7.5 90.5 33.5 46.5 830 90.50 +2.56 46 Bessel ... . 341 • • 27.9 41.0 53.7 7.0 8 92 40.93 -4.92} 2 20.43 7.48} 47 Man . . . N.P. 10.5 . . 37.0 49.7 3.0 8 34 36.81 +3.44 27.916 68.3 59.0 48 Bcssel ... 341 39.5 45.5 58.5 11.3 94.5 8 36 58.46 — «.75 921.65 8.19 49 Mara . . . 8.F. 47.6 0.5 13.7 96.6 39.7 8 99 13.62 +3.84} Thcr. ntt. 72°. 7 SO Besscl ... 341 21.3 34.6 47.4 0.5 8 31 34.48 —4.58} 2 30.86 7.43 Bar. red. to 32° F. 51 Mara . . . N.P. 51.5 4.2 17.5 30.7 43.6 8 33 17.50 +3.70 27.795 58 Bessel ... 341 • • 96.5 39.5 52.9 5.0 8 35 39.33 —4.45 -321.83 •+8.15 Remarks. An extremely fine night. Images sharp and steady, anil satisfactory meanurcs throughout. 23° 178 OPPOSITION OF MARS, 1851-52, KF.HItr VltY 91, 18S»— Continued. Results. Mean 8. P. . . ThlrtMB innriu . . Maul N. P. . . Thirteen tranpiu . . b. m. h. m. a. . 73034.10 . 7 36 97.78 m. >. . — 449.14 n. a. Rev. — 9 18.991 .... + 7.460 . — 980.134 .... +8.164 . / // . . = s»av3» . . =X 39.19 b. m. •. . . 7 96 4.96 . —429.13 Santiago ltd. lime N.P . . 7 31 58.63 . . 5 53.65 A P. t. liu.b. in A. R. reduced to arc . Variation of A. R. in 5m. 54f . // . . 17.M . . 9 44 A N. 8. limtw mlcr. in rev. . . . Variation of declination in 5m 54t H . 0.704=13.79 4- 0 01 Obaemd P. F. diameter h. m. A • at 7 27 . . . 14.70 a . 0.15 Corr. for diam. of micr. wirea . . Observed N. 8. diameter ... h. m. A p at 7 33 . — 9.90 11.53 H . 0.16 FEBRUARY SS, 1859. 1 Chronometer time of transit. Planet — Star. Thermometcn. 1 \I ' Mil i 'I \\ ,F' * Micr. Bar | Object. A. B. C. D. E. A a. A I. Air. wm | € h 111 k K. v H»v f nr>h»> 0 , * II> IU. •• ncT. ••«• 1 Ii> !l> -. 1 Man . . . 8.F. 36.8 50.0 3.0 15.8 99.3 650 9.96 +9.77 97.968 60.7 9 Beaael ... 341 33.0 46.0 59.5 19.5 95.0 6 59 59.90 —3.95 -256.22 +6.79 Ther. alt. a Man . . . N.P. 56.9 9.9 29.5 35.3 48.0 6 55 99.24 +3.33 73". 4 4 Beaael ... 341 53.5 6.5 19.5 32.3 45.9 6 58 19.40 -4.13J 9 57.16 7.46J Bar. red. to 32' F. |7.8tf 5 Man . . . 8.F. S5.7 8.6 91.6 34.6 47.8 7 321.69 +9.43 6 Beaael ... 341 99.0 4.8 18.0 • • 44.0 7 6 17.93 -4.341 2 56.31 8.77J 7 Man . . . N.P. 18.3 31.5 44.5 57.2 10.3 7 9 44.36 +4.29 8 Beaael ... 341 15.5 96.6 41.5 54.5 7.5 7 12 41.52 -3.22J 2 57.16 7.51* 9 Man . . . B.F. 43.3 56.4 9.3 23.3 35.5 7 16 9.36 +3.48 10 Beaiwl ... 341 39.6 59.8 6.0 19.0 32.3 7 19 5.94 — 3.89J 2 56.58 6.77J 11 Man . . . N.P. 9.5 15.7 98.5 41.7 55.0 7 21 98.68 +4.09 19 Beaael ... 341 0.9 13.5 96.5 39.5 59.5 7 94 96.44 -3.36 257.76 7.45 13 Man . . . 8.F. 10.8 93.6 38.5 49.3 9.3 796 36.50 +3.39 M Beaael ... 341 7.0 90.0 33.1 46.1 50.5 7 9933.14 -3.45 956.64 6.84 15 Man . . . N.P. 39.8 53.1 6.9 19.0 39.0 7 31 6.09 +4.07 16 Baaael ... 341 36.0 51.0 4.0 17.0 30.0 734 4.00 -3.39J -957.98 +7.46J Remarks. So blurred and unsteady all the evening, that the meaiurca are little better than gucaaei. Results. h. m. i>. m. a. Rev. / ti Mean 8. F. . . Four traniiu . . . 7 9 2.61 — 956.437 .... +6.777 . . . =9 19.08 Mean N. P. . . Four tnuuita . . . 7 14 95.39 - 9 57.515 . . . . + 7.474 . . . =995.67 h. m. m. a. h. m. a. Correction for chronometer at 7 9 . . . — 4 39.67 Santiago aid. time B. F . . 7 439.94 Correction for chronometer at 7 14 . . . -439.68 Santiago aid. time N. P ..79 59.64 5 99.70 it ti A P. r. llmba In A. R. reduced to are . . 16.17 A N. 8. llmbi micr. in rev 0.697 — 13.58 Variation of A. R. In 5m. 93> 9 04 Variation of declination in 5m. 23f. + 0 07 OWerved P. F. diameter . . . n nn . *~ JI.JPI 11.45 b. m. H h. m. • A » at ' 8 . . 0.13 A»at7 11 . . 0.15 AT SANTIAGO DE CHILE. 179 FEBRUARY 23, 1858." S Chronometer time of transit. Planet— Star. Thermometers. 1 Wean of wires Micr. Bar. j £ Object. A. B. C. D. E. A a. A A Air. Wet. A a s. 8. B. B. i. h. in. 8. Rev. in. 8. Rer. Inches. 0 * 1 Mara . . . S.F. 12.8 25.9 38.8 51.6 5.0 5 57 38.82 +2.07 27.964 63.3 60.4 9 n.— .-i ... 311 . . . . 85 21.0 33.8 6 1 8.10 —3.664 —3 29.28 +5.734 Ther. att 3 Mare . . . N.P. 38.4 51.5 4 5 17.5 30.5 6 4 4.48 +2.14 71". 0 4 Beioel ... 341 8.5 91.5 34.6 47.5 0.5 6 7 34.52 —4.06 3 30.04 6.90 Bar. red. to32°F. 27.848 5 Mara . . . S.F. 38.0 51.0 4.9 17.0 30.3 6 10 4.10 +1.094 6 Besnel ... 341 8.0 90.5 34.0 47.0 59.5 6 14 33.80 —4.54 329.70 5.634 7 Mare . . . N.P. 27.4 40.6 53.7 6.6 19.5 6 15 53.56 +1.24 8 Berael ... 341 58.5 11.3 94.3 37.3 50.1 6 19 94.30 —5.02 3 30.74 6.26 9 Mare . . . 8.P. 38.5 51.5 4.5 17.4 30.7 6 9J 4.52 +1.434 10 Benel ... 341 8.5 91.5 34.5 47.4 0.3 6 25 34.44 -4.164 349.99 5.60 11 Mare . . . N.P. 28.9 42.0 55.0 7.8 21.0 6 27 54.94 +1.79 IS Bemel ... 341 0.0 13.0 95.8 • • 51.7 6 31 95.86 —4.41 3 30.92 6.20 . 13 Mara . . . S.F. 39.6 59.7 5.7 18.7 31.7 6 36 5.68 +0.694 14 IV-..-I ... 341 10.0 23.0 36.0 48.8 1.6 6 39 35.88 -4.894 3 30.20 5.59 15 o Mara . . . N.P. 1.1.3 96.8 40.0 53.0 5.5 6 41 39.72 +1.184 16 BeiMl ... 341 45.5 58.4 11.3 94.0 37.0 6 45 11.94 —5.03 3 31.52 6.214 17 a Mara . . . S.F. 53.7 6.8 19.8 39.7 46.0 6 48 19.80 +0.34 18 BesMl ... 341 94.5 37.5 50.5 3.0 16.3 6 51 50.36 —5.24 3 30.56 5.58 19. Man . . . N.P. 18.5 31.5 44.5 57.5 10.6 6 59 44.52 +0.704 90 Bnael ... 341 • • 3.5 16.5 99.4 49.4 7 3 16.47 —5.56 3 31.95 6.264 91 Mara . . . 8.F. 90.5 33.3 46.3 59.3 12.3 7 11 46.34 +2.76 22 IV.--.rl ... 341 • • 4.5 17.5 30.5 43.5 7 15 17.52 —2.804 3 31.18 5.564 23 Mara . . . N.P. 31.5 44.6 57.6 10.5 93.5 7 17 57.54 +3.36 94 BeMel ... 341 4.1 17.0 30.0 43.0 55.6 7 21 29.94 —2.88 3 39.40 6.94 25 Mare . . . 8.F. 3.5 16.6 29.7 42.6 56.0 7 23 29.68 +2.634 96 Be««el ... 341 35.5 48.0 1.0 14.0 96.8 7 27 1.06 —2.91 3 31.38 5.544 27 Mare . . . N.P. 49.5 55.3 8.3 91.3 34.5 799 8.38 +3.34J 28 Beuel ... 341 15.0 98.0 41.0 53.8 6.6 7 3940.88 —2.88 339.50 6.221 99 Mara . . . S.F. 96.5 39.5 52.5 5.0 18.5 734 52.40 +2.654 30 BeMel ... 341 58.0 11.0 94.0 37.0 50.0 7 3894.00 —2.894 3 31.60 5.55 31 Man . . . N.P. 54.2 7.0 20.3 33.9 46.3 7 40 90.90 +3.35 39 Benul ... 341 26.8 39.8 53.0 5.8 18.8 7 43 52.84 —2.871 3 32.64 C.-'-'J 33 Mara . . . S.F. 45.5 58.5 11.5 21.5 37.5 7 46 11.50 +2.70 34 BeMel ... 341 17.5 30.5 43.5 • • 9.5 7 49 43.48 —2.784 3 31.98 5.481 35 Mara . . . N.P. 50.0 3.0 16.1 99.0 42.3 7 52 16.08 +3.474 36 Be«el ... 341 • • 36.0 49.0 2.0 15.0 7 55 49.02 —2.64 3 32.94 6.114 37 Mara . . . S.F. 99.5 35.3 48.5 1.4 14.5 7 57 48.44 +2.974 38 Beoel ... 341 55.0 7.5 20.5 33.6 46.5 8 1 20.62 —2.52 3 39.18 5.494 39 Mara . . . N.P. 33.5 46.5 59.5 12.5 95.5 8 2 59.50 +3.804 40 Benel ... 341 6.8 19.7 33.8 . . 59.0 8 6 32.81 —2.39 3 33.31 6.194 97.962 58.2 57.0 41 Mara . . . S.F. 10.3 93.4 36.5 49.5 2.5 8 8 36.44 +3.954 49 IV— -1 ... 341 . . 56.0 9.0 22.0 35.0 8 12 9.02 -2.184 332.58 5.44 Ther. alt. 67". 7 a Mara . . . N.P. 92.5 35.5 48.7 1.6 14.7 8 13 48.60 +4.104 Bar. red. to 32° F. 44 Benel ... 341 56.5 9.9 22.3 35.3 48.3 8 17 23.32 —1.99 ^333.72 +6.094 27.856 180 OPPOSITION OF MAES, 1851-62, FKBRfAHY 93. 1H.V4-C oiltinuol. Remarks. Q*JU abarp and •ti-aily from ihn coramenccmcni ; but my ey« arc actually wearied out wilh writing and olwervinf. • Such an outrageou* claiuriiif nf ibc rhuieh brlli tual It U enough to make a Saint nenroun. Rts b. m. a. m. a. Rev. Meaa 8. F. . . Eleven tnui>iu . ..75 10.70 — 3 30.980 .... + 5.565 . ... =1 48.46 Mean N.P. . . Eleven innaita . . . 7 11 96.14 -3 33.068 .... +6.903 . ... =9 0.90 h. m. m. a. h. m. a. Correction for chronometer at 7 5 . . . —4 36.36 7 0 34.34 Correction for chronometer at 7 1 1 , . . —4 36.38 7 6 49.76 6 15.49 w A P. F. limbs in A. II. reduced to arc . . . 16.53 A N. 8. limbs micr. in rev. . . . . . 0.638 = 13.44 . . . —9.15 Variation of declination in 6m. 15i. . . + 0.13 . . . 14.38 Corr. fordiam. of micr. wires . . . . — 9. 80 10.37 h. m. H h. in. . 0.11 A put 7 9 . 0.19 FEBRUARY : 1 . 1858. £ & s. Object. Chronometer lime of transit. Mean of wires Micr. Planet — Star. Bar. Thermometer*. A. B. C. D. E. A*. Ai Air. Wet. h. m. a. RCT. m. a. Rev. Inches. • • 1 Mara . . . 8.F. 38.8 59.0 5.0 18.0 31.9 5 56 5.00 —3.41" 37.960 65.8 60.5 a 3 4 Bnael ... 341 Man . . . N.P. BcMel ... 341 47.0 48.8 59.5 O.I 5.5 13.8 15.0 18.5 H.I 97.5 31.5 39.3 6 0 5.50 6 3 13.16 6 6 14.68 7. SOJ 3.131 7.69 —4 0.50 4 1.53 +3.79 4.55J Ther. alt 73'. 9 Bar. re.i. to 33- F. •MM 5 Man . . . S.P. 32. 3 45.3 58.8 11.9 94.3 6 8 58.91 3.46 6 BcMcl ... 341 • • 46.3 59.0 19.0 94.8 6 19 59.04 7.96 4 O.RO 3.80 7 Man . . . N.P. 33.9 45.1 58.8 11.0 94.3 6 1558.16 3.15 8 Beaael ... 341 34.0 47.0 0.0 13.0 96.0 6 90 0.00 7.611 4 1.84 4.461 9 Man . . . P.P. 49.5 3.8 16.0 99.0 49.4 6 9-J 16.02 4.97 10 Bevel ... 341 • • 4.6 17.fi 30.5 43.4 6 96 17.50 8.01 4 1.48 3.74 11 Man . . . N.P. 41.9 54.3 7.5 90.5 33.5 6 99 7.40 1.88 U BMM) ... 341 • • 58.5 9.7 93.6 39.5 6 33 9.58 6.24| 4 9.18 4.481 13 Man . . B.F. 9.3 15.3 9S.3 41.3 54.3 6 35 38.28 9.91 14 BeaMl ... 341 • • 16.5 99.5 4-3.5 55.5 6 3939.50 6.64 4 1.93 3.73 15 Man . . . N.P. 5(6 13.0 96.5 39.3 59.1 84996.10 3.501 16 Bexel ... 341 • • 16.0 99.0 41.8 64.7 6 46 98.86 6.95 4 9.78 4.441 17 Man . . . B.P. 10.3 33.5 38.4 49.3 9.5 6 49 3R.40 3.71 1- Bwad ... 341 18.5 95.4 38.5 51.9 4.5 6 5338.49 7.381 4 9.09 3.671 19 Man . . . N.P. 6.5 19.3 33.0 45.0 58.0 C 5533.16 3.44 M BCMH ... 341 8.7 81.7 31.0 4S.O 1.0 659 34.88 7.811 4 9.79 4.40J tl Man . . . B.F. 19.6 33.0 46.0 58.8 18.0 7 9 45.88 l.ftlj • Bewt ... 341 35.3 48.1 1.0 14.0 7 6 48.10 5.36 4 9.99 3.73} • Man . . . N.P. 16.6 99.5 49.6 55.5 8.5 7 843.54 1.041 M towel ... 341 19.8 351. S 4S.5 68.5 11.5 7 19 45.56 -5.49J —4 3.09 44.38 AT SANTIAGO DE CHILE. 181 FKBRUARV 2-1 , 185*— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A A Air. Wet. 8. B. 8. B. a. b. in. s. Eev. m. B. Rev. Inches. • • 25 Mara . . . S.F. 13.3 96.4 39.5 52.4 5.5 7 14 39.43 —1.85 27.965 61.2 57.7 96 Bessel ... 341 29.0 42.0 55.0 7.7 7 18 41.94 5. 57J —4 2.52 +3.72i 97 38 99 Mare . . . N.P. Bcs«el ... 341 Man . . . S.F. 15.5 36.3 28.5 33.0 49.5 41.6 45.0 2.5 54.5 58.0 15.5 7.5 10.6 98.5 7 30 41.52 7 24 44.90 7 27 2.46 1.91 5.571 1.87 4 3.38 4.36J Ther. att. 70". 0 Bar. red. to 32° P. 27.852 30 Bexel ... 341 • • 52.0 5.0 18.0 31.2 7 31 5.06 5.56J 4 3.60 3.69J 31 Mais . . . N.P. 43.0 54.3 7.3 20.3 33.5 7 33 7.48 1.I8J 33 11. ..,.] . . 341 58.5 11.5 34.3 37. S 7 37 11.46 5.57 4 3.98 4.381 33 Mara . . . S.F. 47.0 0.0 13.3 36.0 39.5 7 39 13.14 1.81} 34 B. -. 1 ... 341 • • 3.5 16.3 29.3 42.8 7 43 16.34 5.48 4,. 3.20 3.6C; 35 Mare . . . N.P. 5-2.5 5.3. 18.3 31.1 44.0 7 45 18.33 9.85 35 Bes«el . . 341 56.0 9.3 32.3 35.0 48 0 7 4993.12 7.311 4 3.90 4.36; 37 Man . . . 8.P. 40.3 53.5 5.6 18.5 32.0 7 59 5.76 3.78 38 !:• --. 1 ... 341 43.0 56.0 9.0 22.0 35.0 7 56 9.00 7.4(1 4 3.24 3.661 39 Mara . . . N.P. 50.0 2.5 15.5 98.5 41.5 7 58 15.60 2.96 40 Bewel ... 341 54.0 7.0 90.0 32.8 45.8 8 2 19.92 7.30 4 4.32 4.34 41 Mara . . . 8.P. 33.3 46.3 59.3 12.2 35.5 8 4 59.30 3.471 • Beisol ... 341 • • 49.8 3.0 15.8 98.5 8 9 3.80 7.10 4 3.50 3.62} 43 44 Mara . . . N.P. Bexel ... 341 23.5 35.5 40.3 48.5 53.0 1.5 6.0 14.6 19.0 8 10 48.52 8 14 53.10 2.621 -6.91 —4 4.58 +4.S8» Remarks. Clean images and steady ; and the meaiures generally arc very fair. Those towards the last, for about an hour, were the mott satisfactory. Results. h. m. >. m. B. • Rev. / // Mean 8. F. . . Eleven transit* . ..71 11.81 — 4 S.1I8 .... -f3.?13 . . . = 1 12.37 Mean N. P. . . Klc-v.-n transits . . . 7 11 38.36 — 4 3.111 .... +4.401 . . . = I 25.78 h. m. m. B. h. m. a. Correction for chronometer at 7 1 . . . — 4 39.67 6 56 32.14 Correction for chronometer at 7 11 . . . — 4 39.70 7 6 48.56 10 16.42 H // A P. F. limbs in A. R. reduced to arc . . . 14.89 A N. S. limbs micr. in rev i).( 188 = 13.41 . . . 3.15 Variation of declination in 10m. 16*. . 4- 0 28 Observed P. F. diameter . . . . . . 11.74 Corr. for diam. of micr. wires . . . — ">*" — 2.30 Observed N. 8. diameter .... 11.49 h m. B h. m. it A f at 6 59 . 0.08 0.0 182 OPPOSITION OF MARS, 1851-62, FK1 :iu \i IT M, 18SH l 1 C ' ' !t:- M Hint- .rtr.n.il I • 1 ! ! i ! \\ 1! P - Planet— Star. Bar. >.. IBM MM I Object. A. B. C. D. E. A.. A«. Air. n. i. * a. a. a. a. a. h. m. a. Rev. m. m. Rev. Inches. • • i B«eel ... 341 58.8 11.6 94.6 37.6 6 4 11.65 +3.89 98.014 65.0 89.0 i MM . . . B.F. 14.5 97.5 40.5 63.5 6.5 6 7 40.50 -3.35 +398.85 -8.97 3 4 5 6 BeaMd ... 341 MM . . . N.P. B««ei ... 341 MM . . . B.F. 90.5 48.9 3.0 31.5 33.3 1.4 16.0 44.5 46.4 14.3 99.0 57.5 69.4 97.1 49.0 10.5 I-M 40.4 55.0 93.6 6 9 46.40 6 13 14.98 6 15 99.00 6 18 57.53 +3.99 -3.04 +9.851 -4.08i 397.88 3 98.59 6.96 6.99 Thrr. an. T3-.4 Bar. red. to 31 r. 97.891 7 •wad ... 341 9.6 15.5 98.5 41.5 54.5 6 91 18.58 +9.46 8 MM . . . N.P. 30.4 43.3 56.3 9.9 6 94 56.34 —3.761 i n . • 6.991 , Beaael ... 341 31.0 43.7 57.0 9.8 93.9 6 36 56.88 +9.94 10 MM . . . B.F. 59.0 19.3 95.4 38.3 51.5 6 30 95.30 —4.70 398.49 6.94 11 BeaKl ... 341 1.5 14.5 97.5 40.5 53.5 6 3397.50 +1.97 1> Man . . . N.P. • • 49.0 55.0 8.0 91.9 6 3555.05 —4.97 397.55 6.94 13 Brurl ... 341 93.5 36.5 49.5 9.5 15.5 6 37 49.50 +1.841 14 MM . . . B.F. 51.8 4.8 18.0 31.0 44.0 6 41 17.93 —5.13 398.49 6.971 15 Beaael ... 341 34.9 47.9 0.3 13.3 96.3 6 44 0.96 +1.63 16 MM . . . N.P. 1.5 14.5 97.5 40.5 53.5 6 47 97.50 -4.67 397.94 6.30 17 Beaad ... 341 . 98.0 41.0 54.0 7.0 6 49 41.00 +1.35 18 MM . . . B.F. 43.0 56.0 9.3 93.3 35.4 653 9.90 —5.63 :< H -•» 6.97 19 Beaael ... 341' 17.3 30.3 43.4 58.9 9.3 6 55 43.98 +1.91 90 Man . . . N.P. 44.9 57.1 10.9 93.0 36.1 6 59 10.19 —5.19 :< -JI..-I 6.33 91 Benael ... 341 33.5 46.5 19.8 95.6 7 1 59.60 +1.031 » Man . . . B.F. 1.3 14.5 97.9 40.4 53.5 7 5 97.38 —5.90 337.78 6.931 t3 Be*Ml ... 311 49.5 55.5 8.4 91.5 34.5 7 7 8.48 +0.97 94 MM . . . N.P. 9.9 99.0 35.0 48.0 1.0 7 10 35.04 —5.31 396.56 6.38 95 Bevel ... 341 40.9 53.0 6.3 19.4 39.3 7 15 6.94 H Man . . . 8.F. 8.0 90.6 33.5 46.5 59.5 7 18 33.89 -6.08 3 97.38 7.001 97 Beaael ... 341 63.0 5.8 18.8 31.7 44.5 7 90 18.76 +0.91 98 MM . . . N.P. 19.0 31.8 44.9 58.0 11.3 7 93 45.00 —5.41 396.94 6.34 w Beaael ... 341 98.9 41.3 64.3 7.5 90.4 7 9554.34 +0.84 3i MM . . . 8.F. 55.4 8.5 91.5 34.5 47.6 7 39 31.50 —8.15 3 97.16 6.99 31 Beiael ... 341 46.5 69.3 19.5 96.3 38.3 7 31 13.38 +0.89 31 MM . . . N.P. 19.6 95.3 38.4 51.4 4.5 734 38.49 -5.44J 336.04 6.331 31 31 Beaael ... 341 Man . . . B.F. 17.6 44.6 90.8 57.6 43.8 10.6 56.6 93.4 9.6 36.6 73843.68 7 40 10.56 +0.95 —6.11 3 96.88 7.06 38 Bwael ... 341 41.7 64.7 7.9 91.0 33.8 7 49 7.89 +1.011 36 MM . . . N.P. 7.5 90.6 33.7 46.8 59.8 7 45 33.68 -5.39 395.86 6.401 37 Be*Ml ... 341 34.6 48.0 1.0 13.8 96.8 7 48 0.84 +1.13 Man . . . 8.F. 1.5 14.5 97.5 40.5 63.5 7 61 97.50 —5.99 3 96.66 7.05 yt 4* BMad ... 341 Man . . . N.P. 8.8 34.5 91.6 47.4 34.8 0.5 47.8 13.6 0.8 96.5 7 5334.79 7 57 0.48 +1.98 —5.174 :; K.K 6.431 41 41 •MM* ... 341 MM . . . B.F. 38.3 5.0 51.1 18.3 4.4 31.3 17.4 44.3 30.4 57.4 7 59 4.34 8 9 31.96 +1.40 —5.68 398.93 7.08 98.000 69.4 59.5 43 44 i •ami ... 341 MM . . . N.P. •MM! ... 341 4.3 98.7 30.0 17.4 49.6 49.8 30.5 65.8 68.0 43.5 8.6 56.4 91.7 33.0 8 4 30.49 8 7 55.68 8 9 55.96 +1.65 -4.90J 395.96 6.451 Thi>r. nil 70'. 5 Bar. red. to 39- F. B.M 41 MM . . . «.P. M.9 9.1 35.1 48.0 8 1394.13 -5.38 I | M —7.131 AT SANTIAGO DE CHILE. 183 FEBRUARY 85, 1858— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. An. A I. Air. Wet. h. m. s. Rev. m. s. Rev. Inches. • 0 47 48 Bessel ... 341 Mara . . . V.I'. 59.5 17.7 5.5 30.7 18.6 43.7 31.5 56.5 44.5 9.7 8 15 18.53 8 18 43.66 +1.95 — 4.48i +3 25.14 — 6.43J 38.000 62.4 59.5 Remarks. Fine night. Well defined and steady images, and very fair measures throughout. The comparing star is double, its companion being a 12th— blue ; south 19"; and following 0.4>. Mean 8. F. . . Twelve transits . Mean N. P. . . Twelve transits . b. m. Correction for chronometer at 7 11 . Results. b. m. s. . . 7 11 3.03 . . 7 16 34.60 m. s. . . —4 43.13 m. s. Rev. + 327.612 .... —7.003 + 326.516 .... —6.335 ... =2 16.47 ... =9 3.47 h. in. s. . . . 7 6 18 90 . . — 4 43.14 . . 7 11 51 46 . . . 5 32.56 A P. F. limbs in A. R. reduced to arc . . . 16.44 A N. 8. limbs mic. in rev. . . . H . . 0 667—13.00 Variation of A. R. in 5m. 33i Observed P. F. diameter .... ... — 1.51 ... 14.93 Variation of declination in 5m. 33». Corr. for diam. of micr. wires . . . . + 0.18 . . — 2.20 . . 10.98 h. m. . 0. h. m. . 0.13 FEBRUARY «6, 1853. 4 Chronometer time of uansit. Micr. Planet— Star. Rnr Thermometers. 1 Object. A. B. C. D. E. A a. A 1. oar. Air. Wet. I s. s. l. s. - b. m s. Rev. m. s. Rev. Inches. • • i Bessel ... 341 41.3 54.9 7.4 90.4 33.0 6 9 7.9 +4.90 27.920 62.9 9 Mars . . . B.F. 45.5 58.5 11.5 24.5 37.7 6 19 11.54 -i.'Ji; +3 4.30 — 9.811 Thor. att. 3 Bessel ... 341 1.5 14.3 37.5 40.3 53.2 6 14 37.36 +4.64 76° 1. 4 Mars . . . N.P. 4.5 17.5 30.5 43.5 56.5 6 17 30.50 -4.48J 3 3.14 9.12} Bar. red. to32°F. 27.790 5 Bessel ... 341 7.0 90.0 33.2 46.0 59.0 6 19 33.04 +4.35 6 Mars . . . 8.F. 11.0 24.2 37.3 50.3 3.4 6 93 37.24 —5.461 3 4.30 9.81J 7 Bessel . . 341 37.4 40.4 53.5 6.5 19.3 6 34 53.43 +411 8 Mara . . . N.P. 30.5 43.5 56.5 9.3 32.5 63756.46 -4.991 3 3.04 9.10J 9 Bessel ... 341 4.5 17.5 30.6 43.5 56.5 6 30 30.53 +3.90 10 Mars . . . 8.F. 8.5 21.5 34.5 47.5 0.5 6 33 34.50 — 5.931 3 3.98 9.83^ 11 Bessel ... 341 17.0 30.0 43.3 56.1 9.0 6 35 43.06 +3.72 H Mars . . . N.P. 20.3 33.1 46.2 59.0 19.0 6 38 46.12 —5.43 3 3.06 9.15 13 Bessel ... 341 93.5 35.5 48.5 1.5 14.5 6 41 48.50 +3.561 14 Mars . . . B.F. 96.1 39.1 52.1 5.1 18.3 6 44 52.13 —6.27 3 3.62 9.831 15 Bessel ... 341 19.5 33.5 45.5 58.5 11.5 6 47 45.50 +3.30 16 Mars . . . N.P. 22.9 35.3 48.3 1.3 14.2 6 50 48.26 —5.88 3 3.76 9.18 17 Bessel ... 341 47.3 0.3 13.4 36.4 39.3 6 54 13.32 +3.17 18 Mara . . . 8.F. 50.5 3.5 16.5 29.7 43.0 6 57 16.64 —6.70 +3 3.32 -9.87 OPPOSITION OF MARS, 1851-62, 1 1 II HI \H\ t'.. \ 4 Object. Chronometer time of transit. Mlcr. Planet— Star. Bar. ! ..' I "•. :• r. A. B. C. D. E. Ae. Ae. Air. WVt. h. m. t. Hcv. m. a. Rev. Inch.-*. • ' U Beeeel ... 341 8.9 91 3 34.3 47.9 0.0 65934.20 +3.084 97.888 68.0 60.1 m Man . . . N.P. 10.5 93.5 36.5 49.5 9.6 7 9 36.59 -6.091 +3 9.39 -B.18 u a Beeeel ... 341 Man . . . 8.F. 8.5 99.0 95.1 35.0 98.9 48.0 51.0 1.0 4.4 7 4 34.90 7 798.19 +3.021 —8.87 3 3.93 9.884 Ther.au. 79- ,5 Bar. red. to a K. •t Beeeel ... 341 94.5 36.0 51.0 4.0 16.5 7 10 50.80 +9.95 "'"''" M Man ... 97.3 40.9 53.9 ' 6.3 19.3 7 13 53.96 -4.931 3 9.46 9.181 ts Beeeel ... 341 33.5 46.5 . , 19.5 95.5 7 16 59.50 +9.921 98 Man . . . 8.F. 36.0 49.5 9.5 15.5 98.6 790 9.43 -6.98J 3 9.93 9.91 97 Beeeel ... 341 99.0 49.3 55.3 8.1 91.0 799 55.14 +3.36 « Man . . . N.P. 31.0 44.9 57.9 10.1 93.3 7 95 57.16 -6.93 3 3.02 9.29 • Beeeei ... 341 59.0 19.0 95.9 38.9 51.0 79895.08 +4.10 30 Man . . . 8.F. 1.7 15.0 98.0 41.0 54.0 7 31 97.94 -5.88 3 2.86 9.96 a BeeeeJ ... 341 97.0 40.0 53.0 6.0 19.0 7 33 53.00 +4.181 39 Man . . . N.P. 98.8 41.6 54.8 7.8 90.7 736 54.78 —5.07 3 1.78 9.954 33 Beeeel ... 341 41.0 54.3 7.9 90.3 33.3 739 7.3* +4.271 M Man . . . 8.F. 43.5 56.5 9.8 99.7 36.0 7 49 9.70 —5.751 3 2.48 16.03 • Beeeel ... 341 7.5 90.5 33.5 46.5 59.6 74533.59 •+4.M 38 Man . . . N.P. 9.0 99.0 35.9 48.0 1.0 7 48 35.0t —5.00 3 1.59 9.30 37 Beeed ... 341 15.5 98.3 41.5 54.5 7 50 98.44 +4.46 38 Man . . . 8.P. 4.5 17.7 31.0 43.9 56.6 7 53 30.74 —5.51 3 9.X 9.97 BJ Beeeel ... 341 51.5 4.9 17.4 30.3 43.1 7 56 17.X +4.69 41 Man . . . N.P. 59.5 5.5 18.5 31.5 44.5 7 59 18.50 —4.76 3 1.90 9.38 41 Beeeel ... 341 9.0 15.1 98.0 41.0 54.0 8 1 98.03 +4.74 • Man . . . B.F. 4.0 17.0 30.9 43.3 56.5 8 4 30.20 -5.334 3 9.18 9.974 43 Beeeel ... 341 59.5 5.5 18.5 31.5 44.5 8 7 18.50 +4.944 44 Man . . . N.P. 54.0 7.0 90.1 38.9 46.0 8 10 90.00 -4.41 3 1.50 9.354 4ft ••eel . . . 341 38.5 51.3 4.3 17.4 30.4 8 13 4.38 +5.101 41 Man . . . B.F. • • • • 6.5 19.5 38.4 8 16 6.48 —4.951 3 9.10 10.06 47 Beeeel ... 341 8.6 91.6 34.5 47.6 0.4 8 18 34.54 +5.33 46 Man . . . N.F. 9.5 99.6 35.6 48.6 1.5 8 91 35.56 —4.03 +3 1.09 -936 Remarks. No nner nlftal, better Image*, or more MtUfactory work >ince tho comrnrnrcment of the aerie*. The aimiwphcrc li a> iteady u the earth iteelf. Bo clear It It, that not only I* the companion iccn distinctly under lull illumination, but evcu Hi blue color U perceptible. Results. h. m. >. m. §. Rev. f * Meaa 8. F. . . Twelve transit* . . . 7 13 48.47 + 3 3.193 . . . —9.915 . . . =3 13.94 Memn N. P. . . Twelve traniili . . . 7 19 31.01 4-3 9.159 . . . —9.339 . . . =3 0.06 h. m. m. §. h. m. «. Correction for chronometer at 7 14 ... — 4 47.00 7 9 1.47 Correction Cor chronometer at 7 90 . . . — 4 47.01 Santiago ild. time N. P 7 14 44.00 5 43.53 n H A P. F. limb. In A. R. reduced to arc . . 14.56 A N. 8. llmbt rolcr. In rev. . . . 0.676 = 13.17 Variation of A. R. In 5e>. 41 — 1.35 Varixioii of ilrclitintion in 5m. 43*. . . + 0.94 Oteenree P. F. diametrr 13.91 Corr. for diam. ofmicr. wire* • • • — 9.90 Obierved N.8. diameter . . . . 11.21 h. m. n h. a. n A*M7 8 .... . 0.90 A i at 7 13 . 0.18 AT SANTIAGO DE CHILE. 185 FEBRUARY 27, 1859. « 1 Chronometer time of transit. Planet— Star. hermometers. • Micr. Bar 1 £ Object. A. B. C. D. E. A a. A J. Air. Wet. s m 6 *. B. B. 8, *. h. m. e. Rev. m. -. Rev. Inches. » • 1 Bessel ... 341 . 39.9 45.0 57.5 10.6 7 15 44.84 +6.201 27.856 65.2 60.2 2 Mara . . . S.F. 0.5 13.7 98.7 29.7 53.0 7 18 26.79 —7.244 +2 41.88 —13.45 Ther. att. 3 Bessel ... 341 23.2 35.6 48.7 1.6 14.5 7 90 48.72 +5.82J 73". 0 4 Mare . . . N.P. 4.0 17.9 30.3 43.1 56.3 7 23 30.18 — 6. 78J 2 41.46 12.61 Bar. red. to 32° F. 27.734 5 Bessel ... 341 S3.0 36.0 49.0 2.3 15.3 7 25 49.12 +5.87 6 Man . . . S.F. 5.2 18.3 31.3 44.3 57.4 7 98 31.30 -7.444 9 42.18 13.31( 7 B'-s-f-t ... 341 7.7 21.0 33.8 46.9 0.0 7 30 33.88 +5.95 8 Mara . . . N.P. 48.7 1.5 14.8 27.8 41.0 7 33 14.76 — 6.681 2 40.88 12.634 9 Be«»el ... 341 43.0 56.0 9.0 99.0 35.0 7 37 9.00 +5.964 10 Mara . . . S.F. 24.7 37.8 51.0 -3-8 17.0 739 50.86 — 7.3H 9 41' 86 13.28 It Bessel ... 341 55.5 8.5 21.5 34.7 47.5 7 42 21.54 +6.06 19 Mara . . . N.P. 36.5 49.5 2.6 15.5 98.6 7 45 9.54 —6.624 2 41.00 12.684 13 Benel ... 341 41.8 55.0 8.0 21.0 34.0 7 48 7.96 +6.18 14 Man . . . S.F. 93.5 36.8 49.8 2.7 16.0 7 50 49.76 -7.17, 2 41.80 13.35i 15 Bessel ... 341 93.1 36.0 49.0 2.3 15.9 7 59 49.12 +6.964 16 Mara . . . N.P. 3.7 18.7 29.8 42.7 55.6 7 55 99.70 -6.431 9 40.58 12.70 17 Be«e1 ... 341 98.0 40.5 53.7 6.5 19.6 7 57 53.66 +6.31, 18 Mara . . . B.P. 8.5 91.6 34.9 48.0 1.3 8 0 34.86 — 7.004 9 41.20 13.33 19 Bemel ... 341 10.5 93.5 36.5 49.5 2.5 8 9 36.50 +6.49 SO Mara . . . N.P. 51.0 4.0 17.0 30.0 43.0 8 5 17.00 — 6.231 9 40.50 12.72J 21 Bessel ... 341 40.5 53.5 6.5 19.5 39.5 8 7 6.50 +6.6.H • Mara . . . 8.P. 21.7 34.6 47.5 0.6 13.6 8 9 47.60 —6.79 9 41.10 13.441 93 Bewel ... 341 17.2 30.3 43.3 56.2 9.0 8 11 43.20 +6.81 94 Mara . . . N.P. 57.5 10.5 23.5 36.5 49.5 8 14 93.50 — 5.931 2 40.30 19.74) 95 «••-- I ... 341 92.0 35.0 48.0 1.0 13.8 8 16 47.96 +7.09 96 Mara . . . 8.F. 3.0 16.1 29.0 49.0 55.3 8 19 99.08 -6.344 2 41.19 13.434 27 Besael ... 341 8.4 21.3 34.5 47.4 0.5 8 91 34.49 +7.31 28 Mara . . . N.P. 48.6 1.5 14.6 27.5 40.5 8 24 14.54 -5.48 2 40.12 19.79 29 Benel ... 341 48.5 1.0 14.3 27.9 40.9 8 26 14.24 +7.594 30 Man . . S.F. 99.0 49.2 55.1 8.0 91.3 8 98 55.19 —5.95 2 40.88 13.474 31 Bessel ... 341' 19.5 25.6 38.6 51.6 4.5 8 31 38.56 +7.77 39 Man . . . N.P. 53.0 6.0 18.8 31.7 45.0 8 34 18.90 — 5.031 2 40.34 12.801 27.836 63.4 58.4 33 Bessel ... 341 47.1 0.2 13.0 96.5 40.0 8 36 13.36 +8.07 34 Man . . . S.F. 98.5 41.5 54.5 7.5 90.5 8 38 54.50 —5.424 2 41.14 13.494 Ther. att 71°.2 35 Benel ... 341 36.5 49.6 2.5 15.5 99.0 8 41 2.62 +8.38 Bar. red to 32° F. 36 Mara . . . N.P. 16.5 99.7 49.8 55.7 8.7 8 43 42.68 —4.47 +2 40.06 —12.85 27.720 Remarks. Same remark* applicable an last night. Immersion of c Tauri, per chronometer, at GA. 50m. 33>. Results. h. m. s. m. >. Rev. / H Mean 8. F. Nine transits . . . 7 59 98.87 + 2 41.462 . . . —13.397 .... = 4 21.11 Mean N. P. . . Nine transit! ... 8 4 48.20 + 2 40.582 . . . —12.727 .... = 4 8.05 24 OPPOSITION OF MARS, 1851-52, KKBIU'ARY *T. lNS9)-C'anllniir. Hrv. + 38.579 . . . . + 5.900 . . + 37.649 .... +6.594 . . Santiago fid. time 8. F i n . . =154.98 . . =9 7.15 b. m. >. . . 6 43 10.37 . . 6 44 54.16 . . 1 43.79 A P. F. limb. In A. R. reduced lo arc . H . . 13.95 // 0.624 — 19.16 Variation of A. R. In 1m. 44«. ... CH»«l»l< p. F. diameter . . - 0.93 Variation of declination In 1m. 44i. . + 0.11 Observed N. 8. diameter .... 10.07 k. m. A, .160 . 0.19 h. m. A t at 6 45 . n . 0.13 AT SANTIAGO DE CHILE. 189 MARCH 1, 18313. No. for reference. Object. Chronometer time of transit. Mean of wire Micr. Planet— Star. Bar. Thermometers. A. B. C. D. B. A a. AJ. Air. Wet. B. s. 8. •. a. b. in. s. Rev. 8. Rev. Inches 0 a la 2 3 4 5 6 7 8 V 10 11 13 ' 13 14 lit 1C 17 18 19 90 91 99 23 94 95 96 27 98 99 30 31 39 33 34 35 38 37 38 39c 40 41 49 43 44' 45 46 13 9 6 27 13.18 6 27 40.28 6 28 48.48 6 29 14.56 6 30 28.28 6 30 55.48 6 32 22.58 6 32 48.78 6 33 37.48 6 34 3.48 6 36 33.48 6 37 0.48 6 38 56.48 6 39 23.48 6 40 54.78 6 41 21.18 6 43 6.28 64333.48 6 4425.48 6 44 51.48 6 46 32.58 6 46 59.78 6 47 57.98 6 48 24.48 6 49 15.56 6 49 42.98 6 50 39.18 6 51 5.48 6 57 33.08 6 57 59.98 6 58 54.18 6 59 20.48 7 0 45.28 7 1 11.78 7 9 19.48 7 2 45.78 7 7 8.48 7 7 35.48 7 9 11.08 7 9 37.18 7 10 22.28 7 10 48.98 7 11 28.58 7 11 54.58 7 13 15.48 7 13 42.28 +2-071 3.07 1.97 3.69 1.90 3.01 1.87 3.62 1.80 3.511 1.71 2.75 1.611 2.69 1.58| 3.341 1.48 2.54 1.451 3.15 1.38J 9.43 1.35 3.00 1.30 9.35 1.931 9.93 1.961 2.99 1.18 2.741 1.80 2.81 1.74 +2.75 —4.26 3.28 4.211 9.61 4.24 9.69 4.29 2.65 4.30 —3.34 +27.10 26.10 27.20 26.20 26.00 97.00 27.00 26.40 27.20 26.00 27.20 26.50 97.40 96.30 26.90 26.30 26.50 26.30 27.00 26.10 26.00 26.00 +26.80 +0.99 1.72 1.11 1.75 1.711 1.04 1.071 1.66 1.06 1.691 1.041 1.65 1.05 1.691 0.951 1.561 1.01 1.01 1.00 1.601 1.62 1.64 40.96 28.008 Ther. at 72°2. Bar. re< to32°F 27.889 67.2 59.9 Mare . . . 8.F. Bessel ... 341 Mars . . . N.P. • • . . 40.3 48.5 14.6 . . • • Bessel ... 341 • • • • 28.3 55 5 • • • • Besse! ... 341 Mare . . . N.P 22 6 48.8 Bessel ... 341 Mara . . N t • • 37.5 • • • • Bessel ... 341 Mars . . . B.F. 33 5 0 5 Bessel ... 341 Mars . . . 8.F. It' -- 1 ... 341 Mars . . . N.P. . . . . 23.5 54.8 21 9 • • . . Bewel ... 341 M«r« . . . 8.P. • • 6.3 33 5 • • • • Bessel ... 341 M»rs . . . N.P • • 95.5 51 5 • • • • Bessel ... 341 Mar» . . . g.p. Bessel ... 341 • • 59.8 58 0 • • • • Beoel ... 341 Mara . . . 8.P. Bessel ... 341 Mara . . . N P • • • • 15.6 43.0 39 9 • • • • Bessel ... 341 Mara . . 8 P 33 1 Bessel ... 341 Mara . . . N.P. Bessel ... 341 Mara . . . 8.F. • • 20.5 • • • • 11 8 Beesel ... 341 Mara . . . 8.P. Benel ... 341 Man . . . 8.P. • • • • 19.5 45.8 • • • • 35 5 Bessel ... 341 Mare . . . N.P. Bossel ... 341 Mara . . . N.P. Besml ... 341 Mara . . . N.P. 37.9 22.3 48.3 98.6 54 6 • • • • Bowl ... 341 Mara . . . 8.P. • • 15.5 49.3 190 OPPOSITION OF MARS, 1851-52, M \H( 1 i 0»*e«. »f transit. M' .111 ••! u if - Micr. ITU., i hv. Bar A. B. C. D. E. A «. At. Air. Wet. h. m. a. Rev. a. Rev. Incnea. • • 47 4* 90 SI S3 SI 55 57 48 00 01 03 04 04 00 07 08 09 70 71 79 73 74 74 70 Bevel ... 341 Man . N P. • • • • 48.3 14 4 • • • • 7 14 48.98 7 15 14.38 7 15 49.98 7 16 96.78 7 1731.98 7 17 57.18 7 18 49.98 7 19 15.98 790 6.58 7 30 33.48 7 21 24.53 7 21 51.48 794 12.98 794 37.98 7 9599.78 79546.48 79643.18 7 97 8.88 798 2.98 79899.58 7 99 8.58 7 99 34.48 7 30 16.48 7 30 43.58 7 31 40.78 7 33 6.78 7 39 57.78 7 33 94.28 7 33 56.98 7 34 94.48 —4.36 9.07 4.33 3.34 4.30 9.73 4.99 3.361 4.30 9.70 4.32 3.38 4.34 9.74 4.39 3.37 4.33 9.75 4.31 3.40 4.31 9.74 4.98 3.384 4.98 2.784 4.33J 3.39 4.33 —2.75 +96.10 90.80 25.90 96.70 25.90 96.90 95.70 96.70 95.70 96.60 25.90 27.10 96.00 96.50 +97.50 +1.69 0.98 1.57 0.99*. 1.00 0 94 1.00 0.94 1.58 0.91 1.57 0.894 1.494 0.91J +1.58 98.019 Ther. alt. 69'7. Bar. red. to 39° F. 27.900 05.5 49.0 Bev*l ... 341 Man . . . 8.P. Bevel ... 341 Man . . . N.P. 0 0 • • . . 96.8 31.3 57.9 . . . . Bevel ... 341 Mara . 8.F • • • • 49.3 16 0 • • • • Bevel ... 341 Man . . . N P. • • • • • 6.6 33 5 • • • • Bevel ... 341 Mara . . . 8.F. 94 6 51 5 Bevel ... 341 Man . . . N.P. Bevel ... 341 Mara . . . 8.F. • • • • 19.3 38.0 99.8 46.5 • • • • Bevel ... 341 Mara . . N.P • • • • 43.9 8 9 • • Bevel ... 341 Mara . . . B.P. Bevel ... 341 Man . . . N.P. • • 3.0 99.6 8.6 34.5 • • • • Bevel ... 341 Man . . . B.P. • • • • 16.S 43.6 • • • • Bevel ... 341 Mara . . . N.P. Bevel ... 341 Man . . . 8.F. M*ra . . N.P. Bevel ... 341 • • • • 40.8 6.8 57.8 94.3 57.0 94.5 • • • • Remarks. a Quite iharp and food, t Blurred and indutinct. c Fine again, and all the remaining observation!. Results. h. m. t. m. «. Rev. ; H Mean 8. P. . . Nineteen trannu . . 7 9 42.00 + 96.889 .... +0.993 . . . . =0 19.33 Mean N.P. . . Nineteen trandu . . 7 5 31.93 + 96.137 .... +1.633 . . . . =0 31.81 h. m. m. ». h. m. «. Correction for chronometer at 73 . . . 4 58.70 6 57 43.84 Correction for chronometer at 7 0 . . —4 48.70 7 0 33 17 „ n A P. P. limb? in A. R. reduced to arc . . . 11.98 A N. 8. llmhi inii-r. In rev. . . . . 0.640 = 19.47 Variation of A. R. in 9m. 3k. . . . . . — 0.96 Variation of drclinntion in 2m. 39i. . + 0.19 ~ Otwnred F. r. diameter . 11.09 Corr. for dlatn. of micr. nrlrea . . — 9.90 Observed N. 8. diameter .... 10.46 b. B. h. in n AtalOM . 009 Aoal 7 0 . n i>< AT SANTIAGO DE CHILE. 191 MARCH 8, 1858. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. At Air. Wet. 8. 8. a. 8. 0. h. m. s. Rev. in. s. Rev. Inche**. I • 1 3 3 4 5 6 7 8 » 10 11 12 13 14 15 16 17 IS 19 90 21 23 33 34 95 96 97 38 31 30 31 33 33 34 35 36 37 38 30 40 41 43 43 44 45 48 Bessel ... 341 Mars . . . 8. f. +1.08 —3.07 +0.95 —2.54 +0.89 —3.27 +0.74 —2.75 +0.76} -3.45 +1.05 — 2.56i +0.78 -3.48} +0.651 —2.91 +0.54 —3.70^ +0.42 — 3.14J 2.201 6.641 2.50 6. Hi 2.54} 6.81( 3.86 6.44J 2.92} 7.20 2.94} 6.60 3.02 7.29 3.09} 6.77 3.13 7.40 3.13 C..-H 3.13 7.43 3.14} 6.77} 3.13 —7.43 / —4.15 3.49 4.16 3.49 4.21} 3.61} 4.96} 3.56} 4.24} 3.56} 4.44 3.61} 4.37 3.58} 4.27} 3.65} 4.37 3.67} 4.27 3.67 4.30 3.63 —4.39 27.890 Ther. att 75° .5 Bar. red. to 32° F. 27.761 71.5 62.7 2.2 6 18 2.18 Besiel . . 341 Man . . . N.P. Bessel ... 341 Mars . . . 8.F. • • • ' 37.5 • • 6 19 37.48 57.0 6 91 56.98 Bessel ... 341 Man . . . N.P. Bessel ... 341 Mare . . . 8.F. . . . . 36.3 • • • • 6 3326.28 6 34 54.48 Bosel ... 341 Mars . . . N.P. 54.5 21.3 6 37 31.28 Bessel ... 341 Mars . . . 8.P. 37 6 6 30 37.58 Bessel ... 341 Mars . . . N.P. 19.0 6 33 18.98 Bessel ... 341 Mars . . . 8.F. 7 5 6 34 7.48 Bessel ... 341 Mars . . . N.P. 1 3 636 1.28 Bessel ... 341 Man . . . 8.F. Benel ... 341 Mars . . . N.P. • . 38.2 • • 6 44 38.18 51 6 6 46 51.58 Bessel ... 341 Man . . 8.F. Bessel ... 341 Man . . . N.P. Bessel ... 341 Mars . . . 8.F. • • 19.8 • • • • 6 48 19.78 • • • • 57.5 • • • • 6 49 57.48 50 5 6 51 50.48 Bessel ... 341 Man . . . N.P. Beiscl ... 341 Man . . . 8.F. • • 11.0 • • • • 6 53 10.98 54.6 6 54 54.58 Bessel ... 341 Mars . . . N.P. Benel ... 341 Man . . . 8.F. • • • • 30.0 • • • • 6 56 19.98 51.0 6 57 50.98 Bessel ... 341 Man . . . NP. Bessel ... 341 Man . . . 8.F. Bessel ... 341 Mars . . . N.P. !:•-•! ... 341 Man . . . 8.F. • ' 13.8 , * . • • 6 59 13.78 • • 31.5 • • • • 7 4 31.48 • • • • 55.3 • . • • 7 555.2S • • • • 30.3 • • • • 7 7 30.28 192 opposmoN OP MARS, 1851-52, MARC ii a, 11 i.Vi-tonllu •rd. { ( • • Ml t. r urn.- oftraMi i. Mean of irirf* Micr FhM -Star. Bar Thrrmo •cun. ; omm. A. B. c. D. E. A*. •>* Air. W«t. & x Rev U, ^ 1 47 BMM! ... 341 —3.99 ..7 .., 71 5 69 7 43 Man . . N P 38.1 7 8 38 06 6.«7| —3.64} 49 Betwl 911 3.91 ( Th»r. alt 75* 5 50 Mara . . . B.F 31.0 7 11 30 98 7.591 4.38 Bar. ml. 51 BMW! . 341 3.36J to 3J- F. 87.761 at 53 Man . . . N.P. Bnttl ... 341 • • • • 50.0 • • • • 7 19 58.98 6.99 3.94 • • • 3.65} Man 8 F 31.4 7 14 31 38 7.60 4.36 BeMel 341 3.981 5ft Man • N P 56.0 7 15 57 98 7. "It 3.73 57 B«M| ... 341 3.33 56 Man . . 8 F 14.5 7 17 14 48 7.6?} 4.35} 59 Bevel 341 3.36 60 (1 Man . . N.P. BeiMl ... 341 • • • • 14.5 • • • • 7 19 14.48 7.04} 3.411 . . . 3.68} 69 63 Man . . . B.F. Broad . . 341 • • • • 45.5 • • • • 79645.48 7.81 3.40 • • • 4.39} 64 65 Man . . . N.P. Bcwel ... 341 • • • • 13.5 • • • • 7 98 19.48 7.18 .1.39 • . . 3.78 66 Man . . . 8 F 91.0 7 29 90.98 7.831 4.44} 67 Beotel ... 341 3.41 68 69 Man . . . N.P. BeMd ... 341 • • • • 30.3 • • • • 7 30 30.98 7.19} 3.40 . . . 3.78} 70 Man . . . B.F. 1.5 7 33 1.48 7.81 4.41 71 Brmfl . . 341 3.49 7| Man . . N P 14.5 7 33 14 48 7. HI 3.79} 73 Bnwl . 341 3.41 71 75 Man . . . 8.F. Bm*l ... 341 • • • • 19.6 • • • • 7 35 19.58 7.87* 3.43 . . . 4.46} 76 77 Man . . . N.P. Bevel . . . 341 • • • • 46.3 • • • • 7 36 46.38 7.19| 3.411 . . . 3.76} 7g Man . . . 8 F. 90.5 7 38 90 48 7.85 4.43} 79 Bfnft ... 341 3.441 tg Man . . . N.P. 35.5 7 39 35.48 7.91 3.761 81 B«wd ... 341 3.351 81 Man . . . B.F. 8.0 7 45 7 98 7.79 4.43} 83 B«MC| ... 341 3.34} 84 Man . . . N.P. 9.5 7 46 9 48 7.15} 3.81 86 Bnwel ... 341 3.36 H Man . . . B.F 19.5 7 47 19 48 7.79 4.43 87 B«M| ... 341 3.30} 88 Man . . . N.P. 17.0 7 48 16 98 7.19 3.81} tlnnl ... 341 3.39 86 »l Man . . . B.F. Bwtt . . 341 • • • • 95.7 • • • • 7 49 25.68 7.84 3.30} . . . 4.51 88 Man . . . N.P. • • • • 55.0 • • • • 7 5054.98 —7.16 . . . -3.85} AT SANTIAGO DE CHILE. 193 MARCH 3, 1853— Continued. No. for reference. Object. Chronometer time of tansit. Mean of wires. Micr. Planet— Star. Bar. Thermometer*. A B. c. D. E. An. A ,5. Air. Wet. 8. 8. 8. 8. 8. ll. Ill 8. Rev. 111. B. Rev. Inches. • • 93 94 95 96 97 98 99 100 101 103 103 104 105 106 107 108 109 110 111 112 113 114 lit lie in us 119 130 Bcswel ... 341 Mars . . . 8. P. —3.28 7.7(H 3.231 7.05 3.211 7.76 3 18 7.08 3.13 7.65 3.07 6.96 3.09 7.58 3.03 6.931 2.99J 7.52 9.90 6.80 9.88 7.40 2.86 6.771 2.78} 7.34 2.79 —6.71 _ / — 4.4SJ 3.81J 4.541 3.90 4.52 3.89 4.49 3.90} 4.521 3.90 4.53 3.911 4.551 —3.92 27.897 Tber. att. 73°. 3 Bar. rod. to 38° F. 27.774 63.3 60.7 23.5 7 53 23.48 Bessel . . . 311 32 5 7 53 32.48 Bessel ... 341 Mars . . . S.F. 16.8 7 55 1C.78 Besscl ... 341 Mara . . . N.P. Bessel ... 341 Mara . . . ST. Beuel ... 311 Mare . . . N.P. Krsfi-t ... 341 Man . . 8 F • • • • 41.5 • • • • 7 56 41.48 • • • • 31.5 • ' • ' 7 59 31.48 • • 54.3 • • 8 0 54.S8 14 3 8 2 14.38 Bcssel ... 311 Man . . . N P 96 5 8 3 26.48 Beosel ... 341 Man . . . S.F. 47.0 8 4 46.98 Bi-ssel ... 341 Man . . . N P. 36 3 8 7 36.38 Bessel . . .341 Man . . . S.F. 44.4 8 8 44.38 Bessel ... 341 Man . . . N P. 1.5 8 10 1.48 Bessel ... 341 Man . . . S.F. Pcssel ... 311 Man . . . N.P. • • ' 23.5 • • • • 8 11 23.48 • • 43.0 • ' 8 13 43.98 Remarks. Fine nijjht. Sharp and steady images, and satisfactory measures throughout. Results. b. m. a. Rev. . 7 19 30 57 4 381 t ii , . . _i 25 39 . 7 90 51 32 3 727 . . . . — 1 12 64 ll. IH. m. i. h. m. x, . . . 7 14 18 79 Correction for chronometer at 7 21 . . . —5 1.78 Santiago sid. time N. P. ... . . . 7 15 49.54 ... 1 30.75 h. m. A f> nt 7 M . . ... * it A pat 7 16 •f- 0 11 Corr. for diain. of micr. wires . . Observed N. 8. diameter . . . — 2.20 10. G6 25' 194 OPPOSITION OF MABS, 1851-62, 1 1 Mil 1 3, IMS. i C • •rliinr jf irmn.l ', Mirr MM -Star. :,.„:,.., , i. n 1 Obj«cl. A. B. o. D. * A«. A A Air. Wet. i Her Her Inrhei. • • i 1 Beaael ... 341 +4.37 97.947 68.3 A9.6 1 3 Man . . . B.P. Beoel ... 341 • • • • 31.0 • • • • 6 1631.98 -5.54 +4.9T.1 . . . -9.91 Thw.ait. ;9-.6 4 g Man . . . N.P !'••--• ' 341 • • • • 49.3 • • • • 6 18 43.96 -...11: •4-3 971 • • • 9.37 Bar. red. ... :<-j r. 97.837 I Man 8F 93.5 6 21 S3 48 — 5 96 9.93J 7 BeMeJ ... 341 •fl.flBj g Man N P. 55.3 6 33 55.38 —5.431 9.33 I BCM?| 341 +3.71 10 11 Man . . . 8.P. Bmel 341 • • • • 93.9 • • • • 6 38 93.18 -6.96 +3.59 . . . 9.97 1-J Man N.P 19.1 6 30 19.08 — 5.691 '.!.-> 13 Bcoel . 341 +3.47 14 IS Man . . . 8.F. Bc«el 341 • • • • 53.5 • • • • 6 33 53.48 —8.50 +3.30 . . . 9.97 16 17 Man . . . N.P. Bewel . 341 • • • • 4».0 • • • • 6 34 48.96 -5.931 +2.91J . . . 9.931 18 Man . . . 8.P. 8.0 6 40 7.98 —7.061 9.98 19 Bewel . 341 +3.87 ..., Man . . . N P. 51.0 6 49 50.98 —6.49 9.36 91 Bewel . . 341 +9.74 • >i Man . . . 8.P. 13.3 6 45 13.38 —7.94 9.98 93 Bewel . . 341 +2.60J 94 35 Man . . . N.P. Bewel ... 341 • • • • 99.0 • • • • 6 47 98.98 -6.71 +9.55 . . . 9.31} 96 97 Man . . . 8.P. nnwni 341 • • • • 98.5 • • • • 6 50 98.48 —7.48 +9.38 • • • 10.03 9g Man N P 0 0 6 55 59.98 —7.00 9.38 29 Bwwi 341 +9 341 30 Man . 8 P. 38 0 7 0 37.98 — 7.74J 9.99 31 Bewel . 341 +9.Z2I 3D Man . . N P. 8.0 7 3 5.98 —7.91 9.431 1 33 Beaael ... 341 +9.16 34 35 Man . . . 8.P. Bcwel . . 341 • • • • 93.7 • • • • 7 6 33.88 -7.96J +9.08 • • • in.i-j; 35 Man . . . N P. 5.0 7 9 4 98 —7.35 9.43 37 Bewel ... 341 +9.10 3g Man . . . 8.P. 58 0 7 11 57 98 —8.00 10.10 3> BlMil ... 341 +3.43 40 41 Man . . . N.P. Btwal ... 341 • • • • S5.0 • • • • 7 13 54.98 —6.00 +1.64 . . . 9.48 41 Man . . . 8.P. 40 5 7 95 40 48 —8.48 10.19 43 •iiatl ... 341 +1.67 44 4S Man . . . N.P. Bwael . . 341 • • • • Ifi.i • • • • 7 97 16.48 -7.894 +1.70 • • • 9.491 46 Man . . . B.P. 7 98 30 96 - D ' 10.161 AT SANTIAGO DE CHILE. 195 MARCH 3, 18 d 1 & 6 Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. At Air. Wet. 0. 8. 8. 8. 8. h. in. s. Rev. m. e. Rev. Inches. • • 47 48 49 50 51 a 53 Bcssel ... 341 Mars . . . N.P. Bessel ... 341 Mars . . . 8.F. +1.86 —7.65 +1.83 —8.31 +1.36J —8.31 • • • —9.51 10.14 — 9.57J 37.953 Ther. ntt. 69°.6 Dar. red. to 33° F. 37.841 64.0 57.4 • • 35.0 • • 7 31 34.98 11.0 7 34 10.98 Mara ... 341 n. -. i . . . N.P. 31 0 7 38 30.98 Remarks. At no time was the planet sharply defined or the star distinct. The latter, on the contrary, was faint, and the necessity of moving the micrometer screw with rapidity, in order to measure both object* near the centre of the field, made the observations unsatisfactory. a After many trials to make the lamps burn, was obliged to desist. Results. Mean S. r. Mean N. P. Thirteen transits Thirteen transits h. m. Correction for chronometer at 6 54 . Correction lor chronometer at 6 57 . & N. S. limbs micr. in rev Variation of declination in 2m. 30«. Coir, for diam. of micr. wires Observed N. 8. diameter h. m. s. 6 54 3.46 6 56 32.84 m. s. — 5 5.17 — 5 5.17 0.637 = 13.41 + 0.30 — 3.30 10.41 Rev. ' n — 10.033 =315.53 — 9.395 =3 3.11 h. m. s. Santiago sid. time S. F 6 48 57.39 Santiago sid. time N.P 651 37.67 Interval 3 30.38 b. m. n A f at 6 49 0.30 A pat 6 51 0.19 MARCH 4, I - . ;. j Chronometer time of transit. Planet— Star. Thermometers. 1 Object. A. B. C. D. E. A a. A ,J. Air. Wet. S 6 • t, I. 8. 8. 8. h. m. a. Rev. m. s. Rev. Inches. | 0 1 II. C. . . . 15401 . 5.0 18.3 31.0 6 31 18.07 —7.35 27.890 69.5 61.9 3 Mars . . . 8.F. 7.8 31.0 34.0 47.0 0.0 6 33 33.96 +5.49 +3 15.89 +12.84 Thir. »tt. 3 H. C. . . . 15401 14.3 37.1 40.0 6 35 37.13 —7.43 75° .2 4 Mars . . . N.P. 15.5 38.6 41.7 54.5 7.5 6 37 41.56 +5.89 3 14.43 13.32 Bar. red to 3i° F. 27.762 5 II. C. . . . 15401 . . 16.5 29.5 43.5 . . 6 39 39.50 — 7.62J 6 Mars . . . 8.F. 18.5 31.7 44.6 57.6 10.6 6 41 44.60 +5.16 3 15.10 13.78J 7 H. C. . . . 15401 56.0 9.0 31.6 6 47 8.87 —8.25 8 Man . . . N.P. 56.7 10.5 23.3 36.3 49.5 6 49 33.36 +5.08 2 14.39 13.33 9 H. C. . . . 15401 5.5 18.5 31.5 6 52 18.50 —8.391 10 Mars . . . B.P. 8.0 31.3 34.3 47.3 0.3 6 54 34.18 +4.45 2 15.68 12.74J 11 H. C. . . . 15401 56.5 9.5 93.3 6 57 9.43 —8.37 13 Man . . . N.P. 57.5 10.6 23.6 36.5 49.5 6 59 33.54 +4.99 +3 14.11 +13.36 196 OPPOSITION OF MARS, 1851-62, MARC II 4. Ifi i. .1. 2 C • •ler lime of iron. t. Planet- -Star. I- , • r it.- • HH <- M --an of wire* Micr. Bar. 1 Object. A. B. C. I). E. A- A J. Air. Wet. • h.. _ Rev. Rev. In '.. • . . X . m. B. 13 II. 0. ... 15101 49.5 53.4 8.3 . 7 1 15.40 -8.44 •j:.-'" 68.5 61.9 14 Man . . . 8.F. 44.5 57.5 10.5 93.5 36.6 7 4 10.59 +4.97 +9 15.19 +19.71 Ther. an. IS 11. r. . . . 15401 t t 18.0 31.0 44.0 . . 7 7 31.tO —8.48 75- .9 16 Man . . . N.P. 18.9 31.5 45.5 58.5 11.5 7 9 45.38 +4.851 9 14.38 13.331 Bar. red. to 39- F. n.m |7 H. C. . . . 15401 91.5 34.5 47.4 7 11 31.47 —8.59 18 Man . . . 8.F. 93.5 49.5 9.5 15.6 7 13 49.59 +4.07 9 15.05 19.59 19 II. C. . . . 15401 . 41.3 54.9 7.5 . , 7 15 54.33 —8.541 90 Man . . . N.P. 49.5 55.5 8.5 91.6 34.5 7 18 8.59 +•4.79 9 14.19 13.961 91 H.C. . . . 15401 35.3 48.9 1.0 , . 7 91 48.17 —8.49 91 Man . . . 8.F. 37.3 50.3 3.3 16.0 99.5 794 3.98 +4.WI 9 15.11 19.581 93 H. C. . . . 15401 . , 39.5 45.5 58.4 . , 7 95 45.47 -8.501 94 Man . . . N.P. 33.0 46.5 59.5 19.5 95.5 79759.40 +4.74 9 13.93 13.241 95 II. C. . . . 15401 . . 38.5 51.3 4.5 , . 7 31 51.43 —8.71 98 Man . . . -8.F. 40.9 53.3 6.3 19.3 39.5 7 34 6.39 +3.99 9 14.89 19.63 97 II. C. . . . 15401 . 37.5 51.0 3.7 7 35 50.73 —8.64 98 Man . . . N.P. 39.0 59.0 5.0 18.0 31.0 7 38 5.00 +4.53 9 14.27 13.17 99 H.C. . . . 15401 . 3.3 16.0 99.0 . . 7 41 16.10 —8.551 30 Man . . . 8.F. 5.0 18.9 31.9 44.0 58.8 7 43 31.01 +3.981 9 14.94 13.54 31 II. I'. . . . 15401 t f 9.0 15.0 98.0 7 45 15.00 —8.43 39 Man . . . N.P. 3.5 16.5 99.5 49.5 55.5 7479950 +4.73 9 14.50 13.16 33 H.C. . . . 15401 48.5 0.8 13.5 7 49 0.93 —8.261 34 Man . . . 8.F. 49.7 3.6 15.6 98.5 49.0 7 51 15.68 +4 .US 9 14.75 19.491 33 II I . . . . 15401 , . 44.0 56.5 9.8 . . 7 5956.77 -8.161 36 Man . . . N.P. 45.0 58.0 11.3 94.1 37.4 7 55 11.16 +5.00 9 14.39 13.161 37 II. r. . . . 15401 34.0 47.9 0.9 . . 7 56 47.13 —8.01 38 Man . . . 8 F. 36.0 49.0 9.0 15.0 98.3 759 9.06 +4.491 9 14.93 19.501 39 H. C. . . . 15401 . 43.5 56.5 9.3 . . 8 0 56.43 —7.93 97.986 65.8 60.9 40 Man . . . N.P. 44.5 57.5 10.5 93.5 36.5 8 3 10.50 +5.18 9 14.07 13.11 41 H.C. . . . 15401 . 49.5 56.0 9.0 t f 8 4 55.83 —7.73 Ther. att 73°.0 4B Man . . . 8.F. 45.0 58.3 11.1 94.0 37.9 8 7 11.19 +4.71 9 15.39 19.44 Bar. red. to 32° f. 41 II . I'. . . . 15401 . 34.0 47.0 0.0 . , 8 8 47.00 —7.58 97.864 44 Man . . . N.P. 48.5 1.5 14.3 97.4 8 11 1.44 +5.47 +3 14.44 +13.05 Rtmarlcs. Night fine, Image* Heady, and measure* aatiafactory throughout. Results. Mea» B. F. . . Eleven umn»it< . Mean N.P. . . Eleven traiiiiln . h. m. Correction for chronometer at 7 91 . Correction for chronometer at 7 97 . 4 P. F. lirnl" In A R. r. .1 .1 t'. •>••• V>riali<.n of A. R. in 4m. :iU. . . . (IWerved P. P. diameter . . . h. m. •. 7 99 97.48 797 1.75 m. >. —5 8.67 -5 8.88 KI.I.I + 0.01 13.16 m. «. + 9 15.159 + 9 14.989 Rev. + 19.624 + 13.998 h. •. Af a»7 1C . 0.95 . =4 6.04 . =4 17.81 h. m. a. Santiago till, time 8. r 717 18.81 Santiago >id. time N. P 7 91 5.1.07 Interval 4 34.96 • A X. S. limli- inirr. in rev 0.604 = 11.77 Variation nf declination in 4m. 34». . . + 0.39 «'"tr . iiiriliam. of mirr. wiroa . ... — 9.90 ObMtvcd N. 8. diameter 9.98 h. m. A • at 7 91 0.9» AT SANTIAGO DE CHILE. .11 ARCH 5, 1833. Clouds until planet had passed the meridian. 197 MARCH 6, 1852. i V Chronometer time of transit. Micr. Planet— Star. Dn_t riiBrmomcters. I £ Object. A. B. C. D. E. An. 6.1. oarv Air. Wet. g iS d 2 8. s. B. B. s. h. m. B. Rev. m. s. Rev. Inches. • 0 1 H. C. . . . 15401 34.9 47.2 0.2 6 50 47.20 +4.90} 27.924 70.0 58.9 3 Mars . . . S F. 43.5 56.0 9.0 22.0 35.0 6 53 8.90 4.12 +2 21.70 —0.78} Ther. att 3 H. C. . . . 15401 . . 49.6 2.6 15.6 . , 6 55 2.60 4.87 72°. 0 4 Mars . . . N P. 10.5 23.5 36.5 49.5 6 57 23.51 4.60 2 20.91 0.97 Bar. red. to 32° F. 27.805 S B.C. ... 15401 36.6 49.5 2.6 6 58 49.57 4.78 / 6 Mare . . . 8.F. 45.3 58.3 11.2 34.4 37.4 7 1 11.3S 3.93} 221.75 0.84} 7 B.C. . . . 15401 51.5 4.5 17.5 7 3 4.50 4.63} 8 Mora . . . N.P. 59.5 12.6 25.5 38.5 51.5 7 525.52 4.41} 2 21.02 0.23 9 B.C. . . . 15401 , . 26.5 39.6 52.6 . . 7 7 39.57 4.63 10 Mara . . . S.P. 35.5 • • 1.7 14.6 97.6 7 10 1.61 3.70 2 22.04 0.93 11 B.C. . . . 15401 . 37.0 50.0 3.0 * 7 11 50.00 4.66 13 Mare . . . N.P. 44.5 58.0 11.0 33.7 37.0 7 14 10.84 4.31J 3 20.84 0.34} Urn H.C. . . . 15401 54.0 7.0 19.8 7 16 6.93 4.61 14 Mara . . . 8.F. 2.5 15.7 • • 41.6 54.6 7 18 28.60 3.60} 331.67 1.00} 15 H.C. . . . 15401 . , 14.C 27.6 40.6 7 30 27.60 4.55 • 18 Mare . N.P. 29.5 35.5 48.5 1.5 14.5 7 22 48.50 4.31} 3 20.90 0.33} 17 b H.C. . . . 15401 36.0 49.0 2.0 7 34 49.00 4.55 18 Mara . . . 8.F. 44.5 57.5 10.5 23.5 36.5 7 27 10.50 3.52} 2 21.50 1.02} 19 H.C. . . . 15401 . . 36.5 49.5 2.5 7 29 49.50 4.42} 90 Mare . . . N.P. 44.3 57.4 10.5 93.4 36.5 7 33 10.42 4.07} 2 00.92 0.35 21 H.C. . . . 15401 57.6 11.0 23.6 7 34 10.73 4.46} 89 Mara . . . 8.F. 6.6 • • 32.6 45.6 58.6 7 36 33.61 3.48} 321.88 0.98 23 H.C. . . . 15401 . 12.0 25.0 37.8 7 3824.93 4.53} 94 Mara . . . N.P. 19.8 39.8 48.0 58.8 11.7 7 40 45.82 4.07} 220.89 0.45 as H.C. . . . 15401 , . 43.7 56.6 9.4 7 42 56.57 4.54 • Man . . . 8.F. 53.5 5.5 18.5 31.5 44.5 7 45 18.50 3.49 3 21.83 1.05 97 H.C. . . . 15401 . . 53.8 7.0 90.0 t 7 47 6.93 4.66} 28 Mare . . . N.P. 2.0 15.0 28.0 41.0 54.3 7 49 28.04 4.18 2 21.11 0.48} 99e H.C. . . . 15401 50.3 3.2 16.1 . 7 51 3.20 4.70 30 Man . . . 8.F. 58.8 12.0 25.0 38.0 51.9 7 53 25.00 3.58 2 21. HO 1.12 31 H.C. . . . 15401 49.0 2.0 15.0 , m 7 55 2.00 4.83} 33 Mara . . . N.P. 57.0 10.0 23.0 96.0 48.9 7 57 22.98 4.31 3 20.98 0.52} 33 H.O. . . . 15401 . . 44.5 57.5 10.5 7 58 57.50 4.92} 34 Mara . . . 8.F. 53.3 6.3 19.6 32.6 45.6 8 1 19.48 3.74 2 21.98 1.18} 35 H.C. . . . 15401 . . 40.6 53.6 6.5 , . 8 2 53.57 5.02} 38 Mara . . . N.P. 48.5 1.7 14.7 27.7 40.7 8 5 14.66 4.50} 221.09 0.52 37 H.C. . . . 15401 . . 30.0 43.2 56.0 , , 8 6 43.07 S.15 38 Hare . . . S.F. 38.7 51.8 5.0 18.2 31.2 8 9 4.98 3.94 2 21.91 1.21 a H.C. . . . 15401 14.6 27.6 40.6 w < 8 11 97.60 8.33 40 Man . . . N.P. 99.6 35.5 48.6 1.6 14.6 8 13 48.58 4.77} 2 20.98 0.58} 41 H.C. . . . 15401 t f 2.0 15.0 27.8 . 8 15 14.93 5.55 43 Mara . . . 8 F. 10.8 33.8 36.8 49.8 3.0 8 17 30.84 14.30 -(-2 21.91 —1.25 198 OPPOSITION OF MABS, 1851-52, MARCH 0, 18 3g Con tlu iir (I V. |.,, ,. 1, ,. ,,, , Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Tli>Titi»metcn. A. B. C. D. E. A«. A I. All. Wet. Rev. m. >. Rev. Inche*. • • 43 44 4S 464 47 48 B.C. . .* . 1&401 Man . . . N.P. B.C. . . . 15*11 Man . . . B.F. II. C. . . . 15401 Man . . . N.P. 17.5 13.5 13.3 0.5 30.8 4.5 38.5 5.3 98.3 99.6 43.8 17.5 39.5 17.9 39.3 35.8 56.3 30.5 52.5 31.0 W.3 9.5 3.5 5.9 8 19 83.63 8 SI 43.90 8 23 17. SO 8 85 39.10 8 87 18.04 88939.96 +5.791 5.09 5.971 4.67 6.16 +5.461 +2 90.R7 2 91.60 -1-9 91.99 —0.631 1.301 —0.691 97.93S Ther. alt. 71'. 0 Bar. red. i..:fj 1. 97.819 65.0 58.8 Remarks. Blurred and unsteady at the commencement ; and though sharper and pretty well denned subsequently, never entirely free from irregular motion. m Better. 6 Tolerably good. c Recorded 36m. li. at wire D. d Blurred again. Results. h. m. s. m. ». Rrv. i H MeanS. F. . ." Twelve transit! . . 7 39 54.79 + 221.806 . . . —1.057 . . =090.60 Mean N. P. . . Twelve traruiu . . 7 44 10.14 + 990.977 . . . —0.451 . . =0 8.79 h. in. m. «. h. m. -. Correction for chronometer at 7 40 . . . —5 14.39 Collection for chronometer ai 7 44 . . . —514.39 Santiago lid. time N.P . . 7 38 55.82 4 15 35 it A P. F. limb* in A. R. reduced to arc . . . 13.43 A N. 8. limbs Hii'-r. in rev. . . . . 0.606 = 11.81 Variation of A. R. in 4m. 15s. . . . . . . + 0.99 Variation of ilecliuation in 4m. 15f. + 0.41 . . 12 7S Corr. for diam. of niicr. wires . . 8.90 10 09 h. m. ii h. m. // A » at 7 34 . 0.03 0.01 MARCH 7, 1859. 1 Chronometer time of transit. Planet-Star. [ M*'f Hi- 'III' I'T- g Mean of wire* Micr. Bar. | Object. A. B. C. D. E. A*. A i. Air. Wet. 1 <£ a, l. «. a. 1. b. m. a. Rev. m. a. Rev. Incite*. • • z 1 H.C. . . . 15419 . 6.0 19.0 39.0 . t 6 45 19.00 —7.97 97.954 65.6 57.3 9 Mara . . . 8.F. 9.S . . 98.5 41.3 54.5 6 47 98.46 +9.321 +9 9.46 +16.59, Ther. alt. 3 H.C. ... 15419 . , 96.8 39.8 53.8 , . 6 49 39.80 -7.601 70-.9 4 Man . . . N.P. 99.6 35.5 48.5 1.5 14.6 6 51 48.54 +9.65 S 8.74 17.951 Bar. red. to32'F. 97.841 5 H.C. . . . 15419 . . 30.3 43.3 56.1 . . 6 53 43.93 -7.604 • Man . . . 8.F. 96.3 3V.3 59.3 5.5 18.8 6 55 53.44 +8.941 9 9.91 16.55 7 H.C. ... 15419 f f 41.9 54.3 7.3 , t 6 57 54.97 -7.78J 8 Man . . . N.P. 37.1 50.2 3.9 16.0 98.5 7 0 3.00 +9.43 S 8.73 17.911 t H.C. . . . 1M19 . . 59.8 19.6 95.6 • • 7 9 19.67 -7.87 10 Man . . . 8.P. 96.0 9.9 99.1 35.0 48.3 7 499.19 +8.74 9 9.45 16.61 11 II < . . . 15419 . 4.9 17.6 30.6 . . 7 7 17.57 -7.99| It Man . . . N.P. M 13.7 96.8 39.6 99.7 7 9 98.66 +9.16 +9 9.09 + 17.15J AT SANTIAGO DE CHILE. 199 MARCH 7, 1853 Continued. No. for reference. Object. Chronometer time of tran*it. Wean of wirea. Micr. Planet— Star. Bar. Thermometers. A. B. C. 1). E. A a. AS. Air. Wet. 8. 8. B. B. H. h. m. B. Rev. m. B. Rev. Inches. e i 13 H.C. . . . 15412 . 40.6 53.5 6.5 . 7 11 53.53 —8.00 27.954 65.6 57.3 14 Mara . . . B.F. . . 50.5 3.5 16.4 29.5 7 14 3.49 +8.45 +2 9.96 +16.45 15 16 17 H.C. . . . 15412 Mare , . . N.P. H.C. . . . 15412 44.4 48.6 57.5 11.3 1.5 10.5 34.5 14.5 23.5 37.3 36.5 7 16 1.53 7 18 10.48 7 3024.37 —8.05 +9.10 —8.001 2 8.95 17.15 Ther. att. 70°. 2 Bar. red. to 32° F. 27.841 18 Mars . . . S.F. 8.2 21.2 • • 47.5 0.5 7 23 34.35 +8.421 2 9.98 16.43 19 H.C. . . . 15412 , r 26.8 38.8 52.0 7 24 39.20 —8.05 20 Mara . . . N.P. 22.8 35.7 48.5 1.3 14.6 796 48.58 +8.96 2 9.38 17.01 21 H.C. . . . 15412 12.5 25.2 38.0 . . 7 2925.23 —8.471 / 93 Man . . . S.F. 8.5 21.8 35.0 47.6 1.0 7 31 34.78 +7.95 2 9.55 16.421 23 24 H.C. . . . 15412 Mara . . . N.P. 40.8 44.5 53.8 57.5 6.9 10.5 20.0 33.0 7 33 57.50 736 6.90 —8.38 +8.58 3 9.40 16.96 27.967 61.8 S5.4 35 26 27o B.C. . . . 15412 Mara . . . S.F. H.C. . . . 15412 • * 40.3 53.3 1.3 57.7 5.1 15.4 11.0 18.2 28.3 24.0 41.3 8 18 5.20 8 30 15.10 8 92 10.90 —7.13 +8.991 —6.941 3 9.99 16.121 Ther. att. 67°. 6 Bar. red. to 3-1° F. 27.862 28 Mars . . . N.P. 53.7 7.0 20.0 33.3 48.1 89490.03 +9.85 +2 9.19 +16.791 Remarks. Never sharp during the evening ; moreover, there was constantly a quick, tremulous motion, different from anything heretofore noted. a Blurred, so as to be indistinct. Results. h. m. s. m. s. Rev. / H Mean S. F. . . . Seven transits . . 7 19 27.35 + 2 9.657 . . . . + 16.455 = 5 20.71 . . 7 33 49.17 + 2 9.059 . . . . + 17,077 = 5 32.83 b. m. m. s. h. m. a. Correction for chronometer at 7 19 . . . — 5 17.35 . . 7 14 10.00 Correction for chronometer at 7 34 . . . — 5 17.34 . . 7 18 31.93 . . 4 21.93 it // A P. F. limbs in A. R. reduced to arc . . . 8.97 A N. 8. limbs micr. in rev. . . . . 0.622 = 12.13 Variation of A. R. in 4m. 22i. . . . . . + 0.43 Variation of declination in 4m. 22i. . + 0.44 Observed P. F. diameter .... ... 9.40 Corr. for diam. of micr. wires . . — 2.20 Observed N. S. diameter . . . . 10.36 h. m. // b. m. // . 0.32 A o at 7 17 . 0.33 MARCH 8, I--, i. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. A* Air. Wet. •. •. •. i. l. h. m. s. Rev. m. -. Rev. Inches. « • 1 H. C. . . . 1.MI-; , 30.5 43.5 56.4 t 6 29 43.47 —5.11 28.035 62.5 54.3 a 3 4 Man . . . 8.F. H. C. . . . 15419 Mara . . . N.F. 37.5 50.0 50.5 43.6 3.0 3.5 56.6 16.3 16.5 9.5 29.0 29.6 42.0 6 32 3.53 6 38 56.57 6 41 16.06 +3.79 —5.00 +4.48* +2 20.05 +3 19.49 +8.90 +9.481 Ther. an. 68°.0 Bar. red. to 32° P. B7JW 2fO OPPOSITION OF MARS, 1851-52, MARCH 8, ISSa-COBtlned. 4 Cbrnnumrlrr lime of lrmi-il. Planet— Bur. Tlwrmoa»-l«T>. 1 Object. •M u • - Micr. Bar. A. B. C. D. E. A«. At Air. W'M. 1 j. Rev. Ri-v I nrhf • • • 1 UCT. 1 R '.' - s B.C. . . . 15419 . 5.3 18.3 31.1 • « 6 43 18.93 -5.09 1MB 63.5 54.3 • Man . . . 8.F. 19.9 98.0 30.0 59.0 5.0 6 4538.98 +3.79 +9 90.75 +8.81 Th*r. an. 7 ll.C. . . . 15419 . . 35.8 48.6 1.5 , . 8 47 48.63 —4.751 68' .0 8 Man . . . N.P. 49.3 55.3 8.5 91.9 34.3 650 8.32 +4.69 9 19.69 9.371 Bar. rod. M :<" r IT.M t ll.C . . . 15419 . . 0.8 13.6 98.4 . . 6 S3 13.60 —4.99 10 Man . . . 8.F. 8.9 91.4 34.3 47.3 0.5 65534.34 +3.91 2 90.74 8.83 11 B.C. . . . 15418 . . 39.5 59.6 6.4 . , 6 57 59.50 -5.0} 19 Man . . . N.P. 48.0 59.0 19.1 SS.O 38.0 7 0 19.09 +4.41 9 19.59 9.43 13 B.C. . . . 15419 . , 97.0 40.0 59.8 , , 7 339.93 —5.16 14 Man . . . 8.F. 34.8 47.5 0.5 13.6 98.5 7 6 0.54 +3.601 220.61 8.761 IS B.C. . . . 15419 . , 33.5 46.6 59.5 . . 7 8 46.53 —5.19 18 < Man . . . N.P. 41.0 5S.6 7.0 19.9 33.9 711 6.94 +4.18 990.41 9.37 17 II. C. . . . 15412 . 7.9 90.3 33.6 . , 7 1390.37 — 5.821 18 Man . . . 8.P. 15. a 38.3 41.3 54.3 7.5 7 1541.39 +3.48 990.95 8.701 19 H.C. . . . 15419 . . 11.6 94.5 37.4 . . 7 17 94.50 —5.93 90 Man . . . N.P. • • 39.1 45.0 58.0 11.0 7 19 45.04 +4.06 990.54 9.39 91 B.C. . . . 15413 g t 98.8 41.5 54.4 , t 7 91 41.50 —5.96 • Man . . . 8.F. 38.8 49.5 9.5 15.S 98.5 7 94 3.59 +3.331 221.02 8.591 93 B.C. ... I54I9 , r 4.3 17.9 30.9 , f 7 98 17.93 -5.94 M Man . . . N.P. 11.3 94.4 37.4 50.3 3.9 79837.39 +3.98| 920.09 9.901 • H.C. ... 15419 f t 94.8 37.7 50.7 4 f 7 31 37.73 —9.20 • Man . . , B.P. 39.9 45.3 58.4 11.1 94.5 7 33 58.30 +3.401 9 20.57 8.601 a? H.C. . . . 15419 . . 51.9 4.5 17.3 , , 7 38 4.43 — 5.15J 98 Man . . . N.P. 58. a 11.9 24.5 37.3 50.4 7 38 94.33 +4.04 2 19.89 9.191 99 B.C. ... 15419 . . 14.0 27.0 39.9 . . 7 40 96.97 — 5.071 JO Man . . . 8.P. 21.6 34.6 47.5 0.8 13.6 7 43 47.58 +3.44 990.61 8.511 31 H.C. . . . 15419 . . 95.0 38.0 50.8 . . 7 44 37.93 — 5.00J 31 Man . . . N.P. 31.6 44.6 5S.O 10.5 93.5 7 46 57.61 +4.121 9 19.71 9.13 33 6.5 19.5 39.3 7 49 19.41 —4.94 34 Man . . . B.F. 14.0 97.0 40.1 53.0 6.3 7 51 40.08 +3.55 990.67 8.49 35 H.C. . . . 15419 t f 17.5 30.3 43.3 t 7 5330.37 —4.86 38 Man . . . N.P. 94.5 37.5 50.5 3.5 16.5 75550.50 +4.97 990.13 9.13 37 H.C. . . . 15419 50.0 3.0 15.8 7 58 9.93 — 4.69 38 Man . . . 8.P. 57.8 10.7 93.7 3B.5 49.8 8 093.66 +3.75 990.73 8.44 39 B.C. . . . 15119 . . 48.4 1.3 14.3 t t 8 3 1.33 —4.55 40 Man . . . N.P. 55.5 8.8 91.4 34.4 47.5 8 491.46 +4.49 2 90.13 9.04 41 H.C. . . . 15419 1.0 14.0 97.0 . 8 6 14.00 —4.40 49 Man . . . B.F. 9.9 99.5 35.3 48.3 1.3 8 835.39 +4.09 9 21.32 8.49 43 H.C. . . . 15419 1.0 14.0 96.8 , . 8 10 13.93 —4.95} 28.047 56.9 51.7 44 Man . . . N.P. 8.9 91.0 34.4 47.9 M 8 19 34.90 +4.75| 290.87 9.01 45 H C. . . . 15419 . . 0.8 14.0 98.8 . . 8 14 13.87 —4.09 Thpr. alt. 66' .0 • Man . . . 8.F. 9.0 99.0 35.3 48.9 1.9 8 16 35.14 +4.94 221.97 8.33 Bar. mil. 10 3-1' F. . h. m. B. Correction for chronometer at 7 28 . . . —5 20.17 7 22 24.94 Correction for chronometer at 7 32 . . . — 5 20.18 7 27 9.11 4 44.17 _ H A P. P. limbs in A. R. reduced to arc . . . 11.83 A N. 8. limbs micr. in rev 0.601 = 11.71 Variation of A. R. in 4m. 44». . . . . . . + 0.61 Variation of declination in 4m. •! lv. . . + 0.50 Observed P. F. diameter .... . . . 12.44 orr. for diam. of micr. yrirea . . . — 2.20 Observed N. 8. diameter .... 10.02 h. m. ,/ h. m. it A » ml 7 31 . . 0.17 A pat? 36 . 0.18 MARCH 0, 1858. g Chronometer time of transit. Planet— Star. Thermometers. g Mean of wirpa Micr. Bar. 1 Object. A. B. C. D. E. A a. A A Air, Wet. S. ,i R.>v Rev. I ches « 0 £ nev. Ill- 8. i B.C. . . . 15412 . 40.9 53.2 6.0 . 6 31 53.13 +3.17 27.946 69.6 57.7 8 Mara . . . B.F. 1.9 14.5 97.2 40.9 53.3 6 34 97.98 3.93J +9 34.15 +0.76J Ther. att 3 H.C. . . . 15413 p 54.7 7.7 30.6 « 36 7.67 9.59 71°.5 4 Man . . . N.P. 15.0 98.0 41.0 54.0 6.8 6 38 40.96 3.98 2 33.99 1.39 Bar. red. to 39° F 97.829 5 H.C. . . . 15412 . . 33.5 46.5 59.5 . . 6 40 46.50 1.77 6 Mail . . . 8.F. 54.5 7.5 90.5 33.5 46.5 8 4330.50 9.471 2 34.00 0.70} 7 H.C. . . . 15419 49.7 9.8 15.8 6 45 9.77 1.89 8 Man . . . N.P. 10.0 93.1 36.1 49.0 2.0 6 47 36.04 3.94 2 33.27 1.39 9 H.C. . . . 15412 t f 96.5 39.6 59.6 t r 8 49 39.57 1.41 10 Man . . . 8.F. 47.9 1.9 14.9 97.0 40.2 6 53 14.10 3.13 9 34.53 0.79 11 H.C. ... 15419 9.8 33.8 35.8 6 54 22. SO 1.34} 19 Man . . . N.P. 30.3 43.1 56.3 9.3 92.3 6 56 56.96 3.57J 933.46 1.23 13 H.C. ... 15412 . t 40.5 54.0 6.6 6 58 53.70 1,97 14 Man . . 8.F. • • 15.3 28.9 41.9 54.9 7 1 28.97 1.85 2 34.57 0.58 15 H C. . . . 15412 4.5 17.5 30.3 t f 7 3 17.43 1.14 16 Man . . . N.P. 95.0 38.0 51.0 4 0 17.0 7 551.00 2.32 2 33.57 1.18 17 111'. . . 15412 t f 16.5 39.5 42.5 7 7 29.50 1.06 18 Man . . . 8.F. 37.5 50.7 3.8 16.7 30.0 7 10 3.74 1.64 2 34.24 0 58 l'i H.C. . . . 15412 . . 46.0 58.8 11.9 . . 7 11 58.90 1.02} 90 Man . . . N.P. 6.5 19.5 33.6 45.5 58.5 7 14 32.53 2.15 2 33.62 1.19J 21 H.C. . . . 15412 . . 37.9 40.6 53.5 7 16 40.43 0.97J 93 Mars . . . 8.F. 48.8 2.0 15.0 97.8 41.0 7 19 14.92 1.46* 2 34.49 0.49 33 H.C. . . . 15412 . . 47.0 0.0 13.0 . . 7 21 0.00 0.95 34 Marl . . . N.P. 7.7 30.7 33.6 46.7 59.5 7 93 33.64 9.04 2 33.64 1.09 95 H. O. . . . 15412 94.3 37.9 50.2 7 25 37.23 0.96 H Man . . . 8.F. 45.6 58.6 11.6 94.6 37.6 7 28 11.60 +1.43 +2 34.37 +0.47 26° 202 OPPOSITION OF MARS, 1851-62, MARC H », 18 »«— Coullni ted. . | :• r • !!.• of MM t. Planet- -• .r : M k Object. A. B. C. D. E. A«. A*. Air. W.-t J 2 47 Mi . . . 1MI9 11.0 34.0 46.8 , , 7 31 33.93 +0.99 97.948 87.0 55.0 98 Man . . . N.I'. 41.5 54.5 7.6 90.6 33.5 734 7.54 9.05 +9 33.61 +1.06 99 30 31 H.C. . . . 15419 Man . . . B.F. II. C. . . . 15419 40.7 1».S 53.7 9.7 39.3 8.8 99.7 45.9 19.7 35.8 39.8 7 35 39.33 7 38 6.74 8 14 99.87 1.084 1.48 9.08 934.41 0.39J Thrr. an. 69* .3 Bar. red. lo32°F. 97.837 a Man . . . N.P. 30.9 43.8 56.9 9.6 99.7 8 16 58.78 9.874 9 34.11 0.794 33 H.C. . . . 15413 . , 30.0 43.0 58.0 , . 8 18 43.00 1 •;••; 34 Man . . . 8.F. 59.0 4.8 17.8 30.8 43.9 8 91 17.86 9.48 2 34.86 0.18J 35 H.C. ... 15419 . . 13.0 96.0 38.8 893 95.93 9.53 36 Man . . . N.P. 34.0 47.1 0.3 13.3 96.9 896 0.18 3 31 334.25 0.78 37 H.C. . . . 15412 t t 34.6 47.8 0.6 . 8 27 47.60 3.76 39 Man . . . 8.F. 66.5 9.6 99.7 35.5 48.5 83099.58 +9.89 +934.96 +0.13 Jttmarts. Uruurpanrd, in food deflniti in and Heady motion, by any night during the . Rev. Incbei. • • z 1 B.C. . . . 15412 t 43.7 57.0 10.0 t f 63456.90 +3.09 97.980 64.8 :.:'... a Man . . . S.F. SI .5 34.5 47.8 1.0 14.0 6 37 47.78 -4.891 +950.86 — 7.91J Ther. att. 71'. 3 3 H.C. . . . 15419 . 95.3 38.3 51.3 , . 63938.97 +9.72J Bar. red. 4 Man . . . N.P. • • 15.5 38.5 41.3 54.3 6 49 98.49 —4.371 950.15 7.10 i..:;.' 1. •.'-...-'ill 5 H.C. . . 15419 96.5 40.0 59.5 6.0 18.8 6 44 53.78 +9.53 8 Man . . . B.P. 18.3 31.3 44.3 57.3 10.9 6 47 44.98 —5.641 951.50 8.174 7 H.C. . . . 15419 . . 40.9 59.7 (.5 . 6 53 59.80 +1.70J 6 Man . . . N.P. 17.5 30.5 43. A 58.5 9.5 6 56 43.50 -5.58 +9 50.70 —7.981 AT SANTIAGO DE CHILE. 203 MARCH 10, 1858— Continued. § Chronometer time of transit. Planet— Star. Thermometers. % Object. A. B. C. D. E. A a. 4 A Air. Wet. g 0 •£. ^ g. s. 8. s. 8. h. in. s. Rev. m. s. Eev. Inches. • e 9 B.C. . . . 15412 23.7 36.8 49.9 f t 7 3 36.80 +2.96 27.980 64.8 59.5 10 Mars . . . 8.F. 2.5 15.5 28.5 41.3 54.5 7 C 28.46 —5.02 +2 51.66 —7.98 Ther. att 11 H.C. . . . 15412 . t 13.1 26.9 39.0 7 8 26.10 +2.931 71°. 3 12 Mars . . . N.P. 50.5 3.5 16.5 29.5 42.5 7 11 16.50 —4.45 2 50.40 7.37^ Bar. red. to 32° F. 27.863 13 H.C. . . . 15412 8.0 31.0 34.0 . . 7 13 21.00 +2.87 14 Man . . . 8.F. 46.3 59.4 12.3 25.4 38.4 7 16 12.36 —5.17 2 51.36 8.04 15 H.C. . . . 15412 . . 13.6 36.5 39.5 . . 7 18 26.53 +2.84 16 Mars . . . N.P. 51.5 4.5 17.5 30.5 43.5 7 21 17.50 — 4.63J 2 50.97 7.47J 17 H.C. . . . 15412 . 46.8 59.6 13.6 . 7 24 59.67 +2.65 18 a Man . . . 8.F. • • 38.3 57.2 4.2 17.3 7 27 51.27 -5.37 +25*60 —8.02 Remarks. Same remarks as last night. Bothered by the lamps burning badly all the time, o Lamps went out. b. m. s. 7 2 56.48 Results. m. i. Rev. + 9 50.555 . . . —7.309 . . . . — 2 23 45 7 3 12.83 + 2 51.396 . . . 8.096 . . . . — 2 36 43 h. m. Correction for chronometer at 7 3 . . . Correction for chronometer at 7 3 . . . m. s. — 5 28.14 — 526.14 Santiago M. time N. P Santiago sid. time 8. F b. m. s. . . 6 57 30.34 . . 6 57 46.69 . . 16 35 A P. F. limlM in A. R. reduced to arc . . Variation of A. R. in 16» H 19.61 . — 0.05 A N. 8. limbs mic. in rev . 0.717=13.97 — 0.03 Observed P. F. diameter - 12.56 Corr. for diam. of micr. wires . . . — 2.90 11 74 b. m. A p at 6 56 . . 0.16 b. m. A p at 6 56 . 0.16 MARCH 11, 1853. No. for reference. Object. Cbronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A«. AJ. Air. Wet. •. s. s. s. s. b. m. s. Rev. i. Rev. Inches. • • 1 Man . . . 8.F. , . 6.8 19.8 33.6 s t 6 51 19.73 — 4.16 28.018 61.5 58.5 9 Bessel . . . 339 • . . . 12.3 5 53 12.48 -13.40 —52.75 +9,24 3 4 5 Mara . . . N.P. Bessel ... 330 Mars . . . S.F. • • 4.6 33.6 17.2 10.2 46.6 30.3 59.7 6 54 17.33 6 55 10.18 6 56 46.63 +2.76 — 7.01^ +2.10 52.85 9.77J Ther. att. 70°. 3 Bar. red. to 32° P. 27.907 6 Bessel ... 339 37.8 6 57 37.78 —7.07 51.15 9.17 7 Mars . . . N.P. , . - 21.5 34.5 6 58 31.53 +9.59 e Bessel ... 339 • • • • 14.3 • • • • 6 59 14.28 —7.13 59.75 9.79 9a Mars . . . 8.F. 18.0 30.5 43.5 t m 7 2 30.67 +1.91 10 Bessel ... 339 • • • • 22.5 • • • • 7 322.48 —7.13, —51.81 +9.04J 204 OPPOSITION OF MARS, 1851-62, MARCH 11. 18 I Oejeet. a iroooaictrr time of tnuuit. Meuofwiree. Mlcr. Planet— Star. Bar. A. B. C. D. E. Ae. Ai. Air. Weu Rer. •• Rer. Inchr.. ' ••* 11 13 14 15 M 18 19 W 91 93 M 95 27 98 30 31 33 33 34 35 36 37 38 40 41 49 43 44 45 46 47 48 49 50 Cl • M 66 M Man . . . N.P. Baaed ... 339 Man . . . B.P. Beeeel ... 339 Man . . . N.P. Beaeel ... 339 Man . . . B.F. Beeael ... 339 Man . . .' N.P. Be«el ... 339 Man . . . S.P. Beeael ... 339 Man . . . N.P. BeaKl ... 339 Man . . . S.P. Beeael ... 339 Man . . . N.P. Beaael ... 339 Man . . . S.F. Beawl ... 339 Man . . . N.P. Beeael ... 339 Man . . . 8.F. Beaiel ... 339 Man . . . N.P. Beaeel ... 339 Man . . . 8.F. Beeael ... 339 Man . . . N.P. Beaael ... 339 Man . . . S.F. Beaael ... 339 Man . . . N.P. Bnael ... 339 Man . . . B.P. Beaael ... 339 Man . . . N.P. Beaeel ... 339 Man . . . 8.P. Beeeel . .- . 339 Man . . . N.P. Beaeel ... 339 Man . . . B.F. Beaael ... 339 Men . . . N.P. • • 34.0 90.0 9.7 47.0 39.0 33.0 94.6 33.8 15.5 59.6 46.0 35.8 • • 7 11 46.87 7 19 38.98 7 IS 33.00 7 16 94.S8 7 19 99.77 7 90 15.48 7 99 14.57 793 6.38 7 95 14.40 7 96 6.58 797 39.30 79890.98 7 30 14.70 7 31 7.98 7 3399.87 73331.48 7 34 51.37 7 3543.78 7 38 40.50 7 39 31.48 7 41 30.50 74993.48 7 43 51.57 744 43.98 7 46 49.43 7 47 41.38 7 49 37.07 75098.68 753 0.40 75953.48 7 54 31.30 75593.38 7 57 3.73 7 57 55.98 7 59 35.30 8 036.48 8 936.37 8 3 18.48 8 4 39.37 8 5 30.48 8 6 48.73 8 7 40.48 8 10 10.00 8 11 1.98 8 19 93.50 8 13 14.98 +9.35 —7.35 +9.05 —6.931 +9.64 +3.09 -7.01 +9.61 —7.00 +3.001 —7.00 +9.61 -6.961 +9.03 -6.961 +3.58 -8.971 +9.001 —7.03 +3.51 —6-96 +1.93 —6.921 +3.56 -6.87 +3.001 -«.80 +3.65 +9.07 —6.73 +3.79 -6.63 +9.18 -6.561 +9.91 -6.53 +3.31 —6.49 +9.89 -6.441 +9.39 -6.381 +3.061 -6.33 —59.11 51.58 53.71 51.71 53.18 51.78 53.58 51.61 53.41 50.98 51.98 51.41 51.85 51.61 59.08 51.18 •Ji 51.18 53.31 51.11 51.75 51.98 —51.48 +9.70 8.971 9.59 9.03 9.61 9.001 9.571 8.981 9.551 9.031 9.47 8.851 9.43 8.801 9.401 8.80 9.49 8.741 9.44 8.70 9.331 8.651 +9.991 98.018 Tti.-r . an. 70". 3 Bar. red. 37.907" 38.033 Ther. an. i- .11 Bar. rrd. to 33" V. 97.915 61.5 61.0 58.5 56.6 • • 1.6 14.6 97.5 • • • • 1.4 14.5 6 6 97.3 • • • • 16.3 39.9 91 0 49.1 • • • • 1.6 14.9 7.3 97.6 • • • • 16.8 38.4 97.5 30.0 91.5 51.4 43.8 40.5 43.8 4.3 53.5 • • • • 17.5 38.6 30.5 99.5 51.6 43.0 43.5 4.5 • • • e • • 33.3 93.6 49.5 41.3 37.3 98.7 9.5 50.3 • • • • 47.4 0.4 53.5 13.4 • • • • 18.4 31.9 99 4 44.0 . . • • 50.8 3.8 56 0 16.6 • • • • 99.3 13.3 98.5 35.4 96.5 96.3 18.5 30.3 48.9 39.9 59.3 • • • • 3S.O 57.1 10.5 48.6 40.5 10.0 1.3 93.5 1.7 99.8 36.6 • • AT SANTIAGO DE CHILE. 205 MARCH 11, 1 85 «— Continued. Remarks. Same remarks as last night, o Somewhat blurred. b Very sharp and steady. Mean S. F. . . Fourteen transits . Mean N. P. . . Fourteen transits . h. in. h. m. s. . . 7 33 32.05 . . 7 36 39.37 m. B. . . —529.36 Results. s. Rev. — 51.520 .... +8.931 . . — 52.228 .... +9.523 . . / // . . =354.06 . . =3 5.60 h. m. s. 7 28 2.69 5 29.36 7 31 10 01 3 7.32 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 3m. 7>. . . . Observed P. F. diameter .... n . . 10.63 . . + °-69 . . 11.31 A N. S. limbs micr. in rev. . . . Variation of declination in 3m. 7*. Corr. for diam. of micr. wires . . . it . 0.593=11.54 + 0.38 — 2.20 9.79 b. in. // . 0.17 h. m. . 0 . 0.18 MARCH !•;. 1853. 2 Object. Chronometer time of vansit. Wean of wire* Micr.' Planet— Star. Bar. 'hermometers. A. B. C. D. E. A a. A j. Air. Wet. b. m. s. Rev. s. Rev. Inches. • O 1 Mara . . . S.F. . . 33.6 46.5 6 40 33.58 —4.19 27.981 59.6 9 Bestel ... 339 . . . . 3.3 . . . . 6 41 3.38 4.171 —29.70 -0.011 3 4 5 Mara . . . N.P. Bessel ... 339 Man . . . S.F. • • 47.0 19.5 0.5 31.0 35.4 13.4 38.4 • • 6 43 0.30 6 4330.98 6 4535.43 3.621 4.181 4.321 30.68 +0.56 Ther. att. 70°. 7 Bar. red. to 32° F. 27.866 6 Besael ... 339 • • • • 55.0 • • • • 6 45 54.98 4.99 39.55 —0.031 7 Mara . . . N.P. . . 59.0 12.0 34.6 . . 6 47 11.87 3.79 8 Bessel ... 339 • • • • 43.0 • • • • t 47 41.98 4.251 30.11 +0.461 9 Man . . . N.P. t f 5.3 18.3 31.1 t t 6 49 18.17 3.851 10 Bessel . . . 339 • • • • 48.9 • • • • 6 49 48.18 4.361 30.01 +0.51 11 Man . . . S F. f t 50.9 3.8 16.8 853 3.60 4.531 19 Bfiwcl . . . 339 • • • • 33.5 • • • • 6 53 33.48 4.43 99.88 —0.101 13 a Mara . . . S.F. t . 10.3 33.3 36.3 , t 6 54 33.30 4.651 14 BesMl ... 339 • • • • 2.5 • • • • 6 55 3.48 4.531 39.18 —0.13 IS Mara . . . N.P. f f 1.5 14.4 97.9 r t 6 56 14.37 4.06 16 Be»el ... 339 • • 44.5 • • • • 6 56 44.48 4.62 30.11 +0.56 17 Mara . . . S.F. t f 30.5 43.5 56.5 t t 6 58 43.50 4.76 18 Bessel ... 339 • • • • 19.5 • • • • 6 59 12.48 4.58 38.98 —0.18 19 Mara . . . N.P. f f 22.3 35.0 48.0 . 7 0 35.07 4.21 90 Bessel ... 339 • • 5.3 • • • • 7 1 S.18 4.641 30.11 +0.431 91 1 29 93 Mara . . . S.F. Beisel ... 339 Mara ... N.P • • 13.3 96.5 39.4 7 7 36.40 5.06 4 81 —0.35 13.6 96.7 39.6 7 9 26.63 4.41 94 Benel ... 339 • • • • 56.5 • • • • 7 9 56.48 4.80 39.85 +0.39 •1 96 97 Mara . . . S.F. Bessel ... 339 Man ... N.P 28.5 49.0 54.5 • • 7 12 41 .67 5.08 4.831 —0.241 2.5 15.5 38.3 7 16 15.43 4.52 98 Bes»el ... 839 • • 45.1 • • • • 7 16 45.08 -4.871 —39.65 +0.351 200 OPPOSITION OF 1IAB8, 1851-52, MA IK'H ia, 18B3 -Continued. j Object. Chronometer time of trmn.lt. Mean of wire* Micr. P,«.^Bur. Bar. A. B. C. I). E. ** Ao. Air. Wet. h. m. a. Her. a. Ber. Inche.. • ' 30 31 • 33 34 Man . . . B.P. 36.5 49.5 18 S 9.S • • 7 18 49.50 7 19 18.48 79937.9 793 6.78 7 95 3.50 7 95 32.48 79998.10 —5.11 4.811 4.541 4.851 5.17 4.851 4.56 —98.98 99.55 ......... —0.991 +0.31 -0.311 97.981 Ther. au. 70°. 7 Bar. red to 39- P 97.866 59.6 \ ••-•'.. . ' Man ... N.P Bevel ... 339 Man . . . B.F. Bevel . . . 339 Man . . . NP. • • 94.9 50.5 37.3 6.8 3.5 39.5 50.9 16.5 • • 15.0 98.3 41.0 36 Bevel ... 339 57.5 • • • • 7 99 57.48 4.90 99.38 +0.34 37 36 Man . . . B.F. Bevd ... 339 Man . . . B.P. • • 15.3 98.0 56.6 41.0 • • 7 31 38.10 7 31 56.58 7 34 19.63 5.171 5.131 98.48 -0.38 59.7 19.7 95.5 40 Bevel ... 339 • • • • 41.5 • • • • 7 34 41.48 4.77 28.8J -0.361 41 Man . . . N.P. , . 10.5 93.5 36.5 , 736 23.50 4.551 * Bevel ... 339 • • • • 53.0 • • • • 736 53.98 4.801 29.48 +0.25 43 44 45 Man . . . 8.P. Bevel ... 339 Man . . . N.P. • • 30.8 43.9 19.6 S6.7 7 38 43.80 7 39 12.58 7 4022.67 5.18 4.781 4.57 96.78 *• 9.7 99.6 35.7 46 Bevel ... 339 • • • • 59.0 • • • 7 40 51.98 4.76 99.31 +0.19 47 46 49 Man ... B.F. Bevel ... 339 Man . . . N.P. 4.0 17.0 45.7 30.0 • • 7 49 17.00 74945.68 7 44 8.43 5.141 4.73 4.55 98.68 —0.411 55.5 8.5 91.3 SO Bevel ... 339 • • • • 37.6 • • • • 7 44 37.58 4.68 29.15 +0.13 SI Man . . . B.F. . , 37.3 50.3 3.9 , . 7 45 50.97 S.19 51 Bevel ... 339 • • • • 19.0 • • • • 7 46 18.98 4.66 98.71 -0.46 S3 54 55 Man . . . N.P. Bevel ... 339 Man . . . 8.F. • • 91.0 34.5 3 8 47.4 • • 7 48 34.30 7 49 3.78 7 50 91.67 4.46 4.59 5.07 99.48 +0.13 18.8 91.6 34.6 56 Bevel ... 339 • • • • 50.3 • • • • 7 50 50.96 4.561 •..'-.. : -0.48| 57 Man . . . N.P. , m 7.3 90.3 33.3 , 7 99 90.30 4.49 • Bevel ... 339 • • • • 49.5 • • 7 99 49.46 4.47 99.18 +0.05 59 60 61 Man . . . N.P. Bevel ... 339 Man . . . B.F. • • 59.8 5.7 35 0 18.7 7 54 6.73 7 S4 34.98 7 56 96.67 4.41 4.471 4.961 99.95 +0.061 13.7 96.7 39.6 M Bevel ... 339 • • (5.0 • • • • 75654.98 4.401 98.31 -0.58 63 Man . . . N.P. t , 99.8 43.0 SS.8 . f 75849.87 4.30 64 Bevel ... 339 • • • • 19.0 • • • • 7 59 11.98 4.37 99.11 +0.07 66 Man . . . B.F. . , 3.9 16.0 99.0 . , 8 0 16.07 4.88 66 Bevel ... 339 • • • • 44.S • • • • 8 0 44.48 4.39 98.41 -4.56 67 Man . . . N.P. 43.6 M.7 9.8 % 8 1 56.77 4.93 66 Bevel ... 339 • • • • 96.0 • • • • 8 9 95.98 4.95 99.91 +0.02 7* Man . . . B.F. Bevel ... 339 • • 11.5 94.4 M.7 37.3 • • 8 394.40 8 353.68 4.801 4.191 38.98 —0.61 71 71 Man . . . N.P. BevH ... 339 t f 55.5 8.5 37.5 91.4 • • 8 6 8.47 8 637.48 4.131 4.10 99.01 0.031 73 Man . . B.F. f m 93.7 36.8 49.8 . 8 736.77 4.68 74 Bevel ... 339 • • • • S.I • • • • 8 8 5.18 —4.09 -88.41 -0.59 AT SANTIAGO DE CHILE. 207 MARCH 13, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. £. A a. A* Air. Wet. B. 8. 8. 8. 8. u. m. a. Rev. B. Rev. Inches. « 0 75 Mars . . . N.P. 5.0 18.0 31.0 . 8 9 18.00 —4.03 27.987 57.9 76 Bessel ... 339 • . • • 47.0 • • 8 9 46.98 4.021 —28.98 — o.ooi 77 78 79 Mara . . . 8.F. Bessel ... 339 Mara . . . N.P. • • 55.0 44.6 7.8 36.5 58.3 31.0 11.3 • ' 8 11 7.93 8 11 36.48 8 13 58.00 4.59 3.95 3.92 28.55 0.64 Ther. att. 69°. 4 Bar. red. to 32° F. 29.876 80 Besse] . . . 339 • • 37.3 8 13 37.28 —3.86 —29.28 —0.06 Remurks. Good images and satisfactory measures throughout. a Recorded 41. 3t. at wire D. 6 Not incorporated into the means. Results. h. m. 8. s. Rev. / it Mean 8. F. . . Five transits . . . . 6 50 15.88 — 99.458 .... —0.093 . . . . =0 1.81 Mean N. P. . . Five transits . . . . 6 51 15.95 30.204 .... +0.508 . . . 0 9.86 Mean N. P. . . Fifteen transits . . . 7 45 31.10 29.325 .... +0.147 . . . . 0 2.86 Mean 8. F. . . Thirteen transits . . 7 46 35.25 — 98.618 .... —0.467 . , . . =0 9.10 b. m. m. s. h. m. B. Correction for chronometer at 6 50 . . . —5 32.96 Correction for chronomefr at 6 51 . . —5 32.46 6 45 43 69 h. m. m. s. h. m. i. Correction for chronometer at 7 46 . . —5 39.37 . . 7 39 58.73 Correction for chronometer at 7 47 . . — 5 32.37 . . . 7 41 2.88 1 4 15 A P. F. limbs in A. R. reduced to arc . . . 11.19 A N. S. limbs raicr. in rev. . . . 0 599 — 11 67 Variation ol' A. R. in Im . . . -f 0.25 Variation of declination in 1m. . . + 0.13 Observed P. F. diameter .... . . . 11.44 Corr. for diam. of micr. wires . , — 2.20 Observed N. S. diameter . . . 9 60 n A P. F. limbs in A. R. reduced to arc . . . 10.60 A N. 8. limbs micr. in rev. . . . . . 0.614 = 11.96 Variation of A. R. in 1m. 4». . . . ... — 0.97 Variation of declination In 1m. 4t. . . — 0.13 . . . 10.33 Coir, for diam. of micr. wires . . . . — 2,20 9.63 h. m. n h. m. n A f at 6 45 . . . . 0.00 A p at 7 40 . . . 0 00 A a at 6 47 . 0.01 A P at 7 41 . 0.01 MARCH 13, 1832. S Chronometer time of transit. Planet— Star. Thermometers. a M f e Object. A. B. C. D. E. A a. A 4. Air. Wet. g 1' 8. t. f. 8. 8. b. m. B. Rev. m. 8. Kev. Inches. • e i Mara . . . 8F. t t f f 51.5 t < . 6 48 51.48 —4.87 27.973 68.3 59.0 9 Bessel . . . 339 +4.W 9 69 Ther. att. 3 Mars N.P. 44 0 6 50 56 93 4 33 72° 4 4 Bessel ... 339 +4 741 9.061 Bar. red. to 3J° F. 27.853 5 Mara . . . S.F. . . 23.8 . . 6 53 36.73 —5.00 6 Bessel ... 339 —9.67 •JUS OPPOSITION OF MARS, 1851-62, M \ IK II 13. lWI»-Conllnuril. | 1 Object. CkroMWietcr lime of tnunit. Mean of wire*. M,. r. Planet— Star. Bar. A. B. C. 0. E. A*. A A Air. VV,, 11. V. I. Rev. 1-.. ii. -. • • 7 8 • 1* 11 • U 14 15 1C 17 18 1* 90 • 99 93 94 95 91 97 98 « • 31 a 33 34 35 35 37 :.- • • 41 49 43 44 46 4* 47 48 4> M • Man . . . N.P. 8.5 6 5591.43 —4.44 ... I . - —9.19 9.66J 9.111 9.74 9.231. ,,..:; 9.49 9.87J 9.S8 9.87| 9.33 9.911 9.»7 9.38 9.40 10.02| 9.44 10.06 0.45 10.09 9.51 10.19 — 9.43J a.tu Tber. alt. T9-.4 Bar. red. to 3S- P. 97.853 68.3 09.0 B«M| ... 330 Man 8 P. 46 0 8 57 58.93 —5.13 BOMI. . . 339 Man . . N.P. 46.5 85959.43 — 4.«3 B«Hl ... 339 Man . . . 8.F. 46.0 7 458.93 —5.36 4-4 38 Bowl ... 339 Man . . . N P. 29.8 7 7 48.73 -4.84 4-4 39* Berne* . . . 339 Man . . . 8.F. Kernel ... 339 Man . . . N.P. Bet*e\ ... 339 Man . . . 8.P. • • 10.6 • • • • • • 7 933.59 -MM 4-4 371 • • 48.5 • • • • • • 7 10 1.43 -5.19 33 5 7 15 45.43 —5.59 Bewsl ... 339 Man . . . N.P. B««el ... 339 Man . . . B.P. • • 19.9 • • • • • • 79033.13 — 5.0S 4-4 96 56.3 799 9.93 -5.83J 4-4 34 B«M«| ... 339 Man . . . N.P. 44.5 7 25 57.43 — 5.0Q +4.31 BOMI ... 339 Man . . . 8.P. BeiKl ... 339 Man . . . 8.P. • • 33.5 • • • • • • 79945.43 —5.691 9 3 7 31 33.33 -5.78 4-4 19 B«M4 ... 339 Man . . . N.P. Kernel ... 339 Man . . . N.P. Bemet ... 339 Man . . . B.P. • • 54.8 • • • • • • 7 35 7.53 —5.17 4-4.91 • • 39.5 7 38 45.43 —5.1« +4.94 —5.76 -: i 4 • • • 18.8 7 38 99.73 Bead ... 339 Man . . . N P. BMM! ... 339 Man . . . 8.F. • • 58.7 • • • • • • 7 41 9.83 — 5.19 4-4 35 13.8 74398.73 — 5.791 4-4.961 BMttl ... 339 Man N P. 47 9 745 0.83 —5.19 B«*Kl ... 339 Man . . . H.F. Bemet ... 339 Man . . . HP. 339 Man . . . B.P. • • 30.3 • • • • • • 7 48 43.33 -S.7SJ 4-4 331 • • 18.3 • • • • • • 7 4899.33 -5.15) +4.35J -5.79 +4.40 —5.19 4.4 .111 . . . 4.8 7 50 17.73 Bern* ... 339 Man . . . N.P. BMM| ... 339 • * 35.9 • • • • • • 7 51 48.13 AT SANTIAGO DE CHILE. 209 MARCH 13, 1859— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. Ai. Air. Wet. 8. 8. it. 8. •. h. m. a. Rev. s. Rev. Inches. • • 53 54 ::, 58 57 96 59 60 Mara . . . B.P. Besst-1 . . 339 Mars . . N.P. Bessel ... 339 Mars . . . S.F. Bcsscl ... 339 Mars . . . N.P. • • 50.5 • • 7 54 3.43 —5.75 +4.36 —10.11 9.56 10.16 —9.64 27.976 Ther. an. 71°. 1 Bar. red. to 33° F. 27.860 67.3 57.7 • • 34.3 • • • • • • 7 55 37.23 —5 61 +3 95 • • 50.3 • • • • • • 7 58 3.23 —6. SI +3.95 ••- u 7 59 40.93 —5.59 -1-4.05 Bessel ... 339 Remarks. Mevei better or more steady images ; but the interval of A. R. is so small that neither object can be measured near the centre of the field. Mean 8. F. . . Fifteen transit* Results. h. m. «. . . 7 24 53.07 Rev. — 9.934 t it Mean N. P. . . Fifteen transit! . . . 7 28 20.70 — 9.359 t t t —3 9 41 b. m. Correction for chronometer at 7 25 . m. i. . . —535.81 h. m. B. . . . 7 19 17 26 Correction for chronometer at 7 28 . . . —5 35.88 . . . 7 23 44 88 h. m. A a .1 1 7 !' i H .... 0.18 // A f at 7 23 . . . .0.19 + 0.46 Corr. for diain. of inicr. wires . Observed N. S. diameter . . . . . — 3.20 . . 9.27 M M:< M 14, i --. ;. 1 Chronometer time of transit. Micr. Planet— Star. Rnr Thermometers. ! Object. A. B. C. U. E. A a. A j. oar. Air. Wet. 5 • .o:i; 13 Man . . . S.F. 31.2 34.3 47.3 . . 7 8 34.27 +2.39 ' 14 H.C. . . . 15608 36.5 49.5 9.5 7 9 49.50 —1.18 —1 15.23 +9.47 27' 210 OPPOSITION OF MARS, 1851-62, 1 IAKCI 1 14, 1 BSa-Contln ii' '1. • ( i tm trr time . | ii.-, . Planet- -Star. i U' T!I,-M ; VI run of lilm Mirp flmr 1 Okjert. A. B. C. D. B. •iicr. A«. At oar. Air. W.T X b. m. •. i:. > Rev. ],,, !,,.s • • I u M*n . . N.P. •J.o 153 98.1 . 7 U 15.13 +9.78 I7.ni 89.8 SIM 16 II. U. . . . IS8C8 . . 18.3 31.1 44.0 . . 7 U 31.13 -7.98 —1 16.00 + 10.06 Th»r. ait. IT Man . . . 8.P. f t 49.5 9.7 I.-..6 , . 7 14 9.«0 +9.08 73". 0 !- u. c. . . . 15808 . . 4.5 17.6 305 7 15 17.53 -7.98» 1 14.93 9.36) Bur. rrd. •,.i :n r I7.M I* Man . . . N.P. . . 45.8 58.5 11.5 . . 7 16 58.53 +9.61 •» II. C. . . . 10606 • • U u.o 98.8 • • 7 18 14.00 —7.38 1 15.47 9.93 (1 Mm . . . 8.P. . 5.3 17.5 30.8 f f 7 91 17.87 +9.0*1 ti U r. . . . ijarm • • 19.8 39.8 45.5 • • 79933.63 —7.30 1 14.78 9.33J 93 Mara . . . N.P. . . 41.5 54.3 6.6 . . 79354.13 +9.571 M II. c. . . . 15808 • • 58.8 9.8 • i; • • 795 9.73 —7.30 1 15.80 9.87t 95 Man . . 8.P. f f £3.1 38.1 48.9 . . 79836.03 +i.w» « II. C. . . . 15608 • • 3S.3 il.O 3.8 • • 7 97 51.00 -7.34J 1 14.97 9.39 17 Man . . . N.P. . . 5.0 18.1 31.1 . 7 99 18.07 +9.57 98 II. C. . . . 15606 • • 90.5 33.5 46.5 • • 7 30 33.50 -7.99J 1 15.43 9.861 59 Man . . . 8.F. 48.5 1.5 14.5 7 39 1.50 +1.99 30 II. C. . . . 1980S • • 3.J 16.5 99.5 • • 7 33 16.50 —7.35 1 15.00 9.97 31 Man . . N.P. , f 99.0 49.3 553 . . 7 34 49.90 +9.50J a H. C. . . . 15608 • • 44.5 57.5 10.5 • • 7 35 57.50 -7.98J 1 15.30 9.79 a Man . . . 8.F. . . 3.0 16.9 98.8 . . 7 37 16.00 +1.89 X H. C. . . . 15808 • • 17.8 30.5 43.5 • • 7 3830.60 -7.31 1 14.60 9.90 a Man . . . N.P. 94.1 37.1 50.9 7 40 37.13 +9.47 a B.C. . . . 15806 • • 39.8 59.6 5.5 • • 7 41 59.57 -7.39 1 15.44 9.79 37 Matt . . . 8.P. . 53.4 6.5 19.5 . . 8 13 6.47 +9.36 :•- H. C. . . . I560B • • 7.5 90.5 33.5 • • 8 14 90.50 —6.59 1 14.03 8.95 a Man . . . N.P. . 4.5 17.5 30.3 . t 8 16 17.43 +3.08 40 B.C. . . . 15808 • • 19.0 39.0 45.8 • • 8 17 39.97 -6.40J 1 14.84 9.484 41 Man . . . 8.F. t 5.3 18.9 31.9 . . 8 99 18.93 +9.09 « B.C. . . . 15808 ' ' 18.5 31.6 44.6 • • 89331.57 —6.87 1 13.34 8.89 41 Man . . . N.P. . 48.9 58.9 19.0 , , 8 94 59.13 +9.78 44 H. C. . . . 19808 0.5 13.5 96.5 8 96 13.50 -i, M 1 14.37 9.54 0 41 Man . . . 8.F. 98.9 3P.5 59.3 89739.33 +9.17 41 B. C. . . . 15808 • • 40.0 53.0 5.7 69859.80 -8.89 1 13.57 8.88 47 Man . . . N.P. . 59.3 5.3 18.3 . . 8 30 5.30 +8.84* • 97.199 64.7 58.4 48 B. a . . . 15808 • - 8.8 19.6 39.6 • • 8 31 19.67 -8.56J 1 14.37 9.41 .,. Man . . . f.T. , 13.5 97.0 40.0 , . 8 39 96.83 +9.30 Th»r. au. 70.7 M. U. 0. . . . 15808 f 97.8 40.3 53.4 . t 8 33 40.10 —8.49 1 13.97 8.79 Bar. red. i" :fj r. SI Man . . . N.P. • • 34.5 47.5 0.5 . . 834 47.50 +3.09 97.877 a B.C. . . . 15808 • • 48.8 1.6 14.5 • • 8 36 1.57 -6.43J —1 14.07 +».«» Remarks. Quit* steady, but dim all the pTenl a Recorded 13. 61. at wire B. Retultt. Mran K. F. . MM* N.P. . . Thirteen Iran-in . . Thirteen t'tmiti . b. m. i. . . 7 3559.11 . . 7 38 3S.S3 m. *. — 1 14.611 . . . - 1 15.384 . . . Rev. . +9.997 . . . +9.808 . . i n . . =9S».8J . . =3 II. in AT SANTIAGO DE CHILE. 211 MARCH 14, 1852— Continued. Results — Continued. Correction for chronometer al 7 Correction for chronometer at 7 39 A P. F. limbs in A. R. reduced to are Variation of A. R. in 3m. 47i. Observed P. F. diameter b. m. b. m. 7 39 . [ to are m s. , . —5 38.78 . . —5 38.78 , . 11.59 , . + 0.85 li. m. s. 7 30 13 33 . . . 7 33 0.75 . . . 2 47 42 A N. 8. limbs micr. in rev. . . . Variation of declination in 2m. 47t. Corr. for diam. of micr. wires . . Observed N. S. diameter . . . b. m. A p at 7 34 . . . 0.579 = 11.28 . . + 0.38 . . — 2.20 . . 9.46 . 0.19 , . 12.44 . 0.18 MARCH 15, 1859. „ No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. V- At Air. Wet. 1. a. •. •. l. b. m. t. Rev. (. Rev. Inches. • • Mara . . . 8.F. t t 98.5 43.0 55.0 . 6 49 41.83 +1.05 28.015 64.5 59.1 9 H. 0. . . . 15608 . . 13.6 26.5 39.5 . . 6 50 36.53 1.89 —44.70 -0.77 3 4 i Mara . . . N.P. H.C. . . . 15608 Man . . . B.P. • • 36.5 31.8 37.5 49.5 34.8 50.4 9.5 47.6 3.3 • • 6 51 49.50 6 59 34.73 65350.40 1.58 1.77 0.93 45.23 0.19 Ther. att. 71'. 7 Bar. red. to 32° F. 27.897 6 H.C. . . . 15608 • • 22.0 35.0 48.0 • • 6 54 35.00 1.73 44.60 0.80 7 Man . . . 8.F. . . 37.4 50.4 3.3 t m 6 5550.33 0.85 8 H.C. . . . 15608 ' ' 22.0 34.6 47.8 • • 6 56 34.80 1.70 44.47 0.85 > Man . . . N.P. 56.0 9.0 21.8 f f 6 58 8.93 1.33 10 H.C. . . . 15608 ' ' 41.0 54.0 7.0 • • 6 58 54.00 1.65 45.07 0.32 11 Man . . . N.P. . . 59.5 12.5 35.4 . . 7 0 12.47 1.43 13 H.C. . . . 15608 44.5 57.5 10.5 • • 7 0 57.50 1.69 45.03 0.98 13 Man . . . 8.F. . . 43.5 57.0 9.8 , t 7 4 56.77 0.70 14 H.C. . . . 15608 ' • 28.0 41.0 54.0 • • 7 5 41.00 1.61} 44.23 0.911 15 Man . . . N.P. . . 40.5 53.5 6.4 . . 7 6 53.47 1.33J 16 H.C. . . . 15608 25.5 38.5 51.3 • • 7 7 38.43 1.631 44.96 0.30 17 Man . . . S.F. , . 41.3 54.3 7.0 . f 7 854.17 0.79 18 a H.C. . . . 15608 • • 95.6 38.5 51.3 • • 7 9 38.47 1.59 44.30 0.87 19 Man . . . N.P. . . 49.3 3.1 15.0 m f 7 11 2.13 1.30 90 H.C. . . . 15606 • • 34.3 47.0 0.0 • • 7 11 47.07 1.63J 44.94 0.331 21 Mara . . . S.F. , . 5.3 18.8 31.6 . 7 14 18.57 0.651 99 H.C. . . . 15608 • • , 50.0 3.0 16.0 • • 7 15 3.00 1.65 44.43 0.991 93 Man . . . N.P. , t 31.8 34.5 47.4 . f 7 16 34.50 1.37 M H.C. . . . 15608 • • 6.3 19.9 33.1 • • 7 17 19.20 1.61 44.70 0.34 95 Man . . . 8.F. 31.3 44.6 57.7 t t 7 90 44.63 0.65 18 H.C. . . . 15608 16.0 38.8 41.8 • • 7 31 28.87 1.63 44.34 0.98 97 Man . . . N.P. , , 29.8 43.3 55.5 r f 732 43.87 1.241 88 H.C. . . . 15608 • • 14.5 97.5 40.4 • • 7 33 27.47 1.68 44.60 0.431 29 Man . . . S.r. . . 33.0 46.2 59.1 . . 7 34 46.10 0.671 30* H.C. . . . 15608 • • 17.2 30.0 42.8 • • 7 35 30.00 1.69 43.90 1.011 31 Man . . . N.P. , , 10.5 94.0 36.5 t f 7 98 23.67 1.30 32 H.C. . . . 15608 • • 55.5 8.5 21.5 • • 7 29 8.50 1.741 44.83 0.441 33 Man . . . 8.F. 19.0 32.0 45.0 t f 7 30 32.00 0.79 34 H.C. . . . 15608 • • 2.6 15.6 28.5 • • 7 31 15.57 +1.76 —13.57 —1.04 213 OPPOSITION OF MARS, 1851-62, J KARCI I 18, 1 I5»— Contln »rd. t C ' if iraiul i Planet- •fur. 1 1.. Mil H - \l ' tu <>: u i:. - Micr. Bar 1 ObJ««. A. B. C. 0. E. Ac. At Air. W«i t; Hi«v Rev. 1 m ;,< - • • 1 KCT. 95 Man . . . N.P. t < 94.9 37.3 50.9 * f 7 3937.93 + 1.314 98.015 64.5 M.I 35 H.C. . . . 15608 . . 8.5 91.5 94.6 • • 7 3391.53 1.79 —44.30 — 0.471 Tbcr.att. 87 Man . . . B P. 39.5 59.5 5.5 7 34 &9.56 0.76 7T.7 36 lie. . . . 15606 . . 83.9 36.3 40.1 . . 73596.90 1.86 43.70 1.10 l:.,r r,,l M • I' 97.807 30 Man . . . NP. . . se.o 41.0 53.6 . . 7 36 40.67 1.37 40 H.C. . . . 15806 • • 19.0 95.9 36.3 • • 73795.17 1.88 44.30 0.51 41 Man . . . 8.F. . . 47.4 0.3 13.3 , , 7 40 0.33 0.79J 4a B.C. . . . 15M6 31.0 44.0 96.8 • • 740 43.93 1.95 43.60 1.154 43 Man . . . N.P. * • 39.5 59.8 5.6 , . 7 41 5-1.63 1.44 M H.C. . . . 13606 • • 94.1 37.0 50.0 • • 7 49 37.03 1.964 44.40 0.594 45 Man . . . SF. . 47.9 0.0 13.0 . 7 44 0.07 0.84 46 B.C. . . . 15606 • • 30.5 43.4 56.3 • • 7 44 43.40 9.00 43.33 1.16 47 Man . . . N.P. m f 57.0 10.0 93.0 t 7 46 10.00 1.51 48 H.C. . . . 15606 41.5 54.4 7.0 • • 7 46 54.30 9.101 44.30 0.594 49 Man . . . 8 F. 0.3 13.1 26.0 t f 7 48 13.13 0.83 M H.C. ... 15608 • • 43.6 56.5 0.5 • • 74856.53 9.13 43.40 1.9C SI Man . . . N.P. . . 47.5 0.4 13.4 t 7 50 0.43 1.61 fit B.C. . . . 15608 31.5 44.5 57.5 • • 75044.50 9.18 44.07 0.57 a Man . . . 8.F. t t 10.1 93.0 36.0 . 7 9993.03 1.05 54 H.C. . . . 15606 • • 53.5 6.5 19.4 • • 7 53 6.47 9.95 43.44 1.90 55 Man . . . N.P. . . 6.5 19.5 39.4 . . 7 54 19.47 1.67 58c H.C. . . . 19608 • • 51.5 3.5 16.5 • • 755 3.83 9.34 44.36 0.67 57 Man . . . 8.F. 56.0 8.7 91.6 . 756 8.77 1.19* 58 H.C. . . . 15606 • • 39.3 59.2 5.0 • • 7 56 59.17 9.38 43.40 1.954 &9 Man . . . N.P. . 47.4 0.3 13.3 . f 758 0.33 1.74 M H.C. . . . 15606 • • 31.5 44.5 57.3 • • 7 58 44.43 9.46 44.10 0.79 •1 Man . . . 8.F. . 50.a 3.0 16.0 f f 8 9 3.07 1.96 « H.C. . . 15608 • • 33.3 46.9 50.0 • • 8 9 46.17 9.55 43.10 1.97 63 Man . . . N.P. . . 39.3 45.5 57.6 . . 8 345.13 1.994 M H.C. . . . 15608 • • • • 99.0 41.6 • • 8 498.84 9.65 43.71 0.6*4 « Man . . . 8.F. . . 17.1 99.9 4S.9 . f 8 7 99.97 1.47 « H.C. . . . 15600 • • 0.3 13.1 96.1 • • 8 8 13.17 9.78 43.90 1.31 07 Man . . . N.P. 17.0 30.0 43.0 r ( 8 9 30.00 9.13 68 H.C. . . . 15608 • • 1.0 13.5 96.5 • • 8 10 13.67 9.9S4 43.6T "•"-I m Man . . . B.F. . . 0.0 13.0 95.8 . t 8 11 19 93 1.65 70 H.C. . . . 15608 • • 43.9 58.0 8.6 • • 6 19 55.93 3.03 43.00 1.38 71 Man . . . N.P. , t 0.3 .•;.:< 35.3 . 8 14 99.30 9.30 78 H.C. . . . 15608 53.0 6.0 19.0 • • 8 15 6.00 3.19 43.70 0.83 73 Man . . B.F. , . 33.0 46.0 50.0 r f 8 16 46.00 1.85J 71 H.C. . . . 15608 16.0 99.0 49.0 8 17 99.00 3.95 43.00 1 3M n Man . . . N.P. 6.5 19. ( 39.5 8 19 19.53 9.504 A -••• | ••>-."]- 60.5 57.3 76 H.C. . . . 15608 • • 50.9 3.9 16.9 . . 890 3.90 3.40 43.67 0.804 77 Man . . . B.F. , , 17.5 30.5 43.5 . 8 91 30.50 9.04J Th«. all. r.'.' .a 76 B.C. ... 15606 . , 0.3 13.3 96.9 8 99 13.97 3.46| 49.77 1.49 Bar. ml. i.. :fj t 70 Man . . . N.P. . 15.0 98.0 41.0 . 893 98.00 9.75 97.906 66 B.C. ... 15608 • • 58.5 11.3 94.3 • • 894 11.37 +3.601 —43.37 -0.854 AT SANTIAGO DE CHILE. 213 MARCH 19, 1853— Continued. Remarks. Uuite clear ; so that several minute stars are discernible which were not seen last night. There is, however, a haze or blur about the planet, and i unsteadiness of motion which somewhat impairs the observations. a Recorded 46.3». at wire D. b Recorded 37.6s. at wire D. c Recorded 56.5s. at wire B. h. m. ». 7 35 54 75 Result*. I. Rev. / if Mean N. P. . . Twenty transiu . h. m. Correction for chronometer at 7 36 . . . 7 38 17.68 m. a. . . —542.21 4-44.365 .... —0.533 . . . . —0 10.39 h. m. s. . . 7 30 12.54 Correction for chronometer at 7 38 . . . 7 32 35 46 A P. F. limbs in A. R. reduced to arc Variation of A. R. in 2m. 23t. . . . . . 9.58 . . . + 0.80 . . . 10. 3S A N. 3. limbs micr. in rev Variation of declination iy- 2m. 33t. . 0.571= 11.13 + 0.34 9 90 h. m. A t at 7 31 . 0.03 Observed N. 8. diameter .... h. m. A 0 at 7 33 9,87 1 . 0.01 INFERIOR CONJUNCTIONS OP VENUS, 1850^52. MICROMETRICAL OBSERVATIONS, WITH THE 84 FEET EQUATORIAL, AT THE OBSERVATORY, SANTIAGO, CHILE, BY THE U. S. NAVAL ASTRONOMICAL EXPEDITION. INFERIOR CONJUNCTION OF VENUS: 1850-51. 00 1 I'lll It 19, IVMI. 1 C In. Ml. .ill. T. 1 Him ii Iranii u Mean of wire*. Micr. ri.iin i -Slur. Bar. Tnennoi wMn i Object. A. B. C. D. E. A«. . A*. Air. U.; - i i. •. 1. «. 1. h. n. i. Her. >. Rev. Incbe*. • • i Veniu . . . N.P. 87.3 21 39 97.30 -(- 0 38 H.tJB 70.4 61.5 • H. C. . . . 30556 . , , f 5.9 t t 91 40 5.90 ~ w.ww 11.78 —37.90 —11.40 3 4 5 Venal . . . N.P. B.C. . . . 30556 Venu. . . . N.P. 38.5 45.5 51.5 58.5 35.5 4.5 • • • • 21 46 58.61 21 47 35.50 31 50 4.73 0.71 19.19 1.08 36.80 11.41 Tner. utt 68VO Bar. red. ... :n \\ 97.815 • B.C. . . . 30556 • • 41.9 • • • • 81 50 41.90 19.53 36.47 11.45 7 Vemtu . . . N.P. t 0.3 13.4 . 91 59 13.41 0.93 a B.C. ... 30556 • • 36.0 49.0 • • • • 91 59 49.11 19.43 35.70 11.50 • 10 a Venn. . . . N.P. B.C. . . . 30596 • • 41.0 54.3 99.3 • • • • 91 54 54.96 91 55 89.30 0.97J 12 524 35.04 11.55 11 Venni . . . N.P. 49.5 16.0 91 57 15.98 •*"**§ 0.98 19 II. C. . . . 30556 • • 38.0 • • 4.9 • • 91 57 51.10 13.59 35.12 11.61 13 Vrno. . . . N.P. t . 33.0 45.0 . . t t 31 50 45.11 0.84 14 B. C. . . . 30556 53.5 6.5 19.5 • • • • 39 0 19.73 13.201 34.69 11.661 IS Team . . . N.P. . . 35.8 49.5 . . t . 33 9 49.36 0.91 It B.C. . . . 30556 • • 10.9 93.9 • • • • 99 3 33.31 19.58 34.05 11.67 171 VMM . . . N.P. 48.5 9.0 . . . . . . 4J 5 15.09 0.93 18 B. C. . . . 30506 • • 95.0 • • 9.0 . 99 549.00 19.64 33.91 11.79 18 Vena. . . . N P. . . 94.5 37.6 , t t m 99 737.66 0.91 It H.C. . . . 30558 • • 57.6 11.0 • • • • 99 8 10.91 19.67 33.95 11.76 21 Venai . . . N.P. 99.0 . . 55.6 , . , , 99 955.53 0.87J B H.C. . . . 30556 • • • • 98.5 • • • • 99 10 98.50 19.66J 39.97 11.79 t) Vena. . . . N.P. , . 90.6 94.0 , . . , 99 19 33.91 0.69 94 II. C. . . . 3UM6 • • 53.9 (.5 • • • • 33 13 6.46 13.50 39.55 11.90 IB V. nu. . . . N P. 3.5 17.3 30.5 , , f r 33 15 30.33 0.69 M B.C. . . . 30596 • • 49.5 S.5 • • • • 33 16 9.61 12.59 39.98 11.90 n v . n „ . . . . N P. f , 47.9 0.5 t t t f 99 18 0.46 0.57J 98 H.C. . . . 30558 * * * • • 39.6 • • • • 93 18 33.60 19.58 82.14 12.001 H Venn . . . N.P. . 30.5 59.8 . 999059.76 0.53 » B.C. . . 30596 • • 11.0 94.9 • • • • 33 91 94.91 n.cq 31.45 19.14} II Venai . . . N.P. , . 31.5 44.6 . , , . 39 36 44.66 0.97J at B.C. . . . 30458 • • 1.8 15.0 • • • • 39 97 15.01 13.97 30.35 11.981 aa Vnw . . . N.P. . . 40.3 53.5 t f t f 99 29 53.51 0.161 M B.C.... 30558 • • 10.0 93.5 • • • • 39 3033.36 +12.951 —99.85 —19.08 AT SANTIAGO DE CHILE. 217 OCTOBER 19, 18SO— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. AJ. Air. Wet. i. K. 8. 0. B. h. m. s. Rev. 6. Rev. Inches. • • 35 Venus . . .N.P. p t 50.5 3.6 .. . , 22 32 3.66 ± 0.00 28.022 70.4 61.5 36 H.C. . . 30536 . . 30.0 33.3 _ . . 32 33 33.21 +12.01 —23.55 —12.01 37 38 39 Venus . . . N P. H.C. . . . 30556 Venus . . N P. 53.0 31.0 43.1 5.3 35.0 55.5 • • 22 35 5.26 22 35 34.61 22 37 55.41 1.09 13.05 1.33 29.35 12.05 Ther. ntt. 68°. 0 Bir. red. to 32' F. 27.915 40 H.C. . . . 30J56 • • • • 23.6 • • • • 22 38 23.60 13.59 28.19 12.25 41 Venus . . . N.P. . 4.8 18.5 . 22 40 18.36 1.21 43 H.C. . . . 33556 • • 46.8 • • 23 40 4S.60 13.62 S8.54 12.41 43 Venus . . . N.p. t 31.5 44.5 t t t f 22 43 44.61 1.06 / 44 H.C. . . , 30556 • • • • 13.5 • • 22 43 12.50 13.48} 37.89 1-3.42} 45 r Venu» . . .N.P. 41.2 54.5 7.5 , f 22 46 7.66 0.97 46 II. C. . . . 30555 • • • . 35.0 • • 22 46 35.00 13.36 27.34 12.39 47 Vcnua . . . N p. , t 37.5 51.0 . . , . 32 49 50.66 0.65| 48 49 90 SI 99 93 94 55 98 H. C. . . . 30353 Venus . . .N.P. • • 51 3 18.0 • • • • 22 50 18.00 23 54 4.42 32 54 £0.50 3) 57 19.00 33 57 44.30 S3 59 35.50 31 0 1.-J9 33 2 9.50 •a 2 34.00 13.30 0.43 13.051 0.30 13.6I| 3.3? 16.13, 3.14J 15.92 27.14 23.03 25.50 25.79 24.50 13.54| 13.82} 12.61} 12.74} 12.77} H. C. . . . 30336 Venus . . .N.P. • • 30.5 19.0 • • • • H. 0. . . . 30555 V*nu» . . . N P • • 44.3 3S.5 • • • • • • • • 9.5 14.5 • • Venus . . . N.P. H. C. . . . 30556 • • 34.0 • • 57 Venus . . . N.P. . t , t 43.3 . . , 23 4 43.23 2.81, 58 59 60 Cl 63 H. C. . . . 305.16 Venus . . . N.P. • • 7.3 13.5 • • • ' 33 5 7.30 33 6 13. SO 23 6 37.40 33 10 7.30 33 10 30.50 15. 61 2.50 13.34 9.15 15.01 24.00 23. BO 23.30 12.79} 12.81 12.86 S8.044 63.0 53.0 H. C. . . . 30536 Venui . . . N.P. • • • • 37.4 7 3 • • • • H. C. . . . 30556 . . 33.5 . . . . 63 64 65 Venus . . .N.P. 18 8 33 11 18.80 33 11 41.50 33 14 46.40 1.93 14.77 1.37} 22.70 12.84 Ther. alt 63°. 0 Bar. red. to 32" F. 27.946 11. C. . . . 3053'J Venus . . . N.P. • • • • 41.5 46.4 • • • • 66 H. C. . . . 30556 • • 9.0 • • • • 23 15 9.00 + 14.341 —33 60 —13.87 Remarks. Fine clear night, after a day i xtremely warm for to early In tiie season. The planet was tolerably steady until 2%. Bid. time ; after which, the cU4ps Were evidently elongated. a Recorded 46. Oi. at wire D. « Recorded 44. 5«. at wire 0. i Recorded 47. St. at wire A. Results. b. m. B. Mean . . . Thirty-three transits . . . 22 28 35.03 h. m. Correction for chronometer at 32 29 — 30.03 m. • . — 3 4.33 h. m. Rev. — 12.004 Santiago «icl. time N. P. / f . =353.96 h. m. n. 32 35 50.70 28° A pat 22 36 0.2J 218 INFERIOR CONJUNCTION OF VKNU8, 1850-51, III TOII Kit -ill. 1830. 1 Cbronnmrlrr lime of tinn-il M \ • • \\ • Mirr Plunrl— 8ur. Bar. Thermoncirn 0*ct. A. B. C. 0. E. •iicr* A«. A A Air. ir« jf Her. m. i. Her. Inchw. • • 1 w.o 43.5 S3 7 10.0 36.8 91 6 10.01 +5.88 • -, 68 8 60.6 • Veu«. . . . N P. . . 1.9 14.5 98.0 41.5 91 7 14.66 0.98 +1 4.69 —4.90 Th*r. mi 3 W.C 9.5 15.5 98.8 41.5 91 9 98.70 6.36 6r.9 4 \ V,,u. . . . N.P 90.5 34.9 47.5 . . 91 10 34.07 0.9PJ 1 5.37 5.364 Bur red in 3 • " R.M 5 w. c 47.9 0.5 13.5 < < 91 18 13.65 6.93 «• V. ,,u< . . . N.P. 53.5 1.5 19.6 • • • • 91 19 19.78 1.59 1 6.13 5.41 7 W C 53.9 5.6 19.0 t t . 91 91 18.85 7.08J 8 Venui . . . N.P. 58.5 H.S 96.0 • • • • 91 99 25.99 1.45 1 7.07 5.634 1 W. C 58.5 11.9 94.6 . , 91 94 94.68 7.09 10 i Vtrnui . . . N.P. 5.6 19.0 3-2.0 • • • • 91 85 M. 19 1.3lt 1 7.44 5.774 11 W. C 4.4 17.5 30.5 , . 91 28 30.78 7.074 19 V«no« . . . N.P. 18.0 95.5 38.8 • • • • 81 99 38.68 1.30 1 7.96 5.774 13 W.C 380 51.9 4.5 . , . 91 31 4.48 7.064 14 Vrniu . . . N.P. 48.9 58.5 13.0 • • • • 91 32 19.89 1.99 1 8.34 5.644 IS W.C 38 5 51.5 4.5 21 31 4.75 7.13 16 Venm . . . N.P. 47.9 0.5 13.8 • • 81 35 13.75 1.174 1 9.00 5.954 17 W. C. . . . 40.9 53.5 7.0 21 38 6.82 7.174 18 Venw . . . N.P. 50.5 3.5 16.6 • . 21 39 16.78 1.114 1 9.96 6.06 19 W.C 45.5 58.6 19.9 95.0 , . 21 41 11.95 7.074 90 Vfmw . . . N.P. 55.9 8.0 93.3 35.5 • • 91 42 22.13 1.13 1 10.18 5.944 SI W. C. 37.8 51.0 4.5 17.5 , r 21 44 4.98 7.154 91 V, im. . . . N.P. 48.9 9.0 15.5 28.6 43.3 91 45 15.32 1.09 1 11.04 6.064 S3 W. C 35.8 48.5 1.5 15.0 . 91 47 1.68 7.164 Me Vrniw . . . N P. 48.0 59.5 13.0 26.5 40.3 91 48 13.08 1.004 1 11.38 6.16 95 W. C 53.5 7.0 90.0 33.0 f f 91 51 20.00 7.18 95 Veniu . . . N.P. 5.5 18.6 32.0 45.9 58.6 91 52 31.98 0.904 1 11.9? 6.374 ft W.C 15.5 99.0 49.0 55 0 91 54 42.00 7 98 Venn. . . . N.P. 97.5 41.0 54.5 7.5 90.8 91 55 54.26 0.844 1 19.96 6.92 99 W.C 95.5 3t.9 53.5 5.5 . . 81 57 52.30 7.124 • Vena. . . . N.P. 38.8 59.0 5.5 18.5 32.9 21 59 5.36 0.79 1 13.06 6.404 31 W.C 53.9 6.5 . 33.0 . •it 1 19.74 7.004 3* Ventu . . . N.P. 6.5 19.6 33.0 46.3 59.5 99 9 32.93 0.55 1 13.94 6.454 33 W.C 91.5 35.0 48.0 1.5 22 4 48.13 7.15 Mi Veiiui . . . N.P. 35.5 48.6 9.3 15.5 98.6 82 6 9.10 0.63 1 13.97 6.59 m W. C 1.9 14.5 87.5 40.8 23 10 27.63 7.184 • Venm . . . N.P. 18.0 99.5 49.5 56.0 9.4 99 11 42.68 0.57 1 15.05 6.614 .-•- W.C 48.8 1.5 14.5 87.5 m f 92 14 14.55 7.16 • Venm . . . N P. 3.5 16.8 30.3 43.5 57.0 92 15 30.22 0.484 1 15.67 6.674 • W. C 33.0 48.9 59.5 19.5 . 22 17 59.43 7.014 4* v . NIL . . . N.P. 48.9 1.8 159 98.9 41.7 22 19 15.02 0.38 1 15.59 6.634 41 W. C 5.0 18.5 31 5 44.6 t 22 31 31. M 7.08 49 V«D« . . . N.P. 91.8 • • 48.5 1.5 15.0 24 22 48.38 0.964 1 16.85 6.814 43 w. r 5J.3 8.6 91.5 34.6 f t 92 95 21 .60 7.04 44 V«nu. . . . N.P. 19.5 95.5 30.8 58.4 S.8 92 96 38.94 0.20 1 17.34 6.84 4t W. C 14.5 •0.0 41.9 S4.5 99 99 41.18 +6.944 41 VOUM . . . N.P. 45.5 59.0 19.5 95.8 92 SO 58.98 ±0.00 + 1 17. 7d -6.944 AT SANTIAGO DE CHILE. 219 OCTOBER 20, 1850— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A. at win C. 6 Recorded 31.5s. at wire C. c Recorded 13.5s. at wire C. H Recorded 34.5s. at wire A. e Tremulous. / Indifferent; star barely visible. Moan Results. Thirty-six transits b. m. Correction for chronometer at 22 15 . h. m. f. 22 15 0.71 m. s. — 3 5.57 m. i. RCT. + 1 15.33 .... —6.615 Santiago sid. time N. P. . . . h. m. » A pat 22 11 0.0 . = 2 8.93 h. in. 8. 22 11 55.14 IX TO UK I! 21, I -~-.il. Cloudy. 220 INFERIOR CONJUNCTION OF VENTS, 1850-51, OCTOBKR aa. 1890. .: t - Clironomrter time of iran-n. Mean of wire* Micr. Plonri— Star. ' Bar. ,i- nil. I:i' '• r A. B. C. D. E. A.. A i. Air. b. m. i. Rev. i. R«T. Inebe*. * • If •-' 3 1 5 C 7 9 10 a 12 13 14 15 16 17 18 19 SO 91 29 S3 Ml 95 96 97 98 99 30 31 39 33 34 35 39 37 38 39 40 41 49 41 44 45 • 91 6 57 57 91 7 95.97 21 98 33.04 •Jl •-* 57. t-0 91 31 7.93 21 31 32.39 31 40 23.40 21 40 45.37 21 4252.77 21 43 15.53 21 45 8.47 21 45 30.84 21 47 13.07 91 47 34.90 21 49 36.03 21 49 57.50 21 51 50.00 21 58 11.30 21 5350.47 21 54 10.94 21 56 44.65 21 57 4.67 21 58 41.17 21 59 1.44 92 1 1.95 93 1 91.79 93 3 29.93 29 3 49.42 22 5 30.77 99 5 49.73 92 8 3.27 93 831.87 23 11 47.93 93 19 6.00 93 13 50.67 93 13 8.34 23 IS 6.97 93 IS 94.23 23 17 13.67 23 17 93.79 23 19 36.49 93 19 53.53 9391 94.19 93 91 40.40 93 94 39.46 29 94 52.68 -9.46 13.3f>l 0.80 10.421 0.86 10.441 0.971 10.53 1.091 10.58 1.92 10.60 1.16 10 57 1.42 10.M 1.5S 10. Wj 1.72 10. 95 1.66 10.971 1.79 10.961 1.83 10.971 1.84 10.91 1.86 11.01 1.91 10.96 1.97 11.00 1.3-1 10.961 9 03 10.951 9.051 10.95 9.051 10 SI 9.03 10.96 9.09 —10.971 —27.70 94 85 94.47 23.97 92.75 22.37 91.83 91.48 21.30 20.47 20.02 90.27 19.77 19.50 18.96 18.60 18.08 17.67 17.95 17.05 17.10 18.95 -16.99 +9.921 9.621 ' 9.5C1 9.601 9.4?1 9.38 9.41 9.50 9.311 9.23 9 311 9.171 9.151 9.10 9.15 9 05 9.03 8.98 8.931 8.891 8.851 8.93 +8.951 •MM Fhi-r. an.1 67'. 0 Bur. ml. 10 39 r 67.9 57.6 13.0 Venus . . . X P 6.5 44.5 33.0 • • 11.9 21.6 Venoi . . . N P. .... Vrnui . . . N P. 41.5 56.5 54.5 18.8 9.6 33.5 46.5 155 31.0 35.0 • • 37.5 59.5 44.0 48.9 58.8 13.0 43.0 Vcnm . . . N.P. 96.9 39.5 9.0 55.5 17.5 £9.8 91.5 99.7 44.4 \>nu. . . . N.P. W. C \>nu« . . . N.P W. C Vrnu. . . . N.P. 41.6 • > 46.5 9.5 57.6 50.0 lO.i • • Venn N P W (3. 11.3 Vrnu« . . . N.P \v.o Vrniu . . . N.P. \V. C 938 18.0 37.3 57.5 31.5 11.0 44.6 4.5 1.5 9.0 91.5 49.5 49.6 22.0 6.0 24.3 18.1 15.0 35.9 3.0 35.0 19 5 16.0 16.5 48.5 Venui . . . N.P. W.C V.nil« . . . N.P. W. C V»nm . . . N.P. W. C Ven« . . . N.P. W. C. . 14.5 35.9 3.9 4.9 28.0 47.8 48.8 16.8 35.7 17.5 Vrnui . . . N.P. W C 36.5 50.9 Venu« . . N.P. W. C. 91.9 31.8 53.3 Venn. ... N.P W. C. . . 94.0 37.5 550 53.2 8.5 94.9 99.5 53.8 91.5 37.5 43.9 6.5 37.5 53.5 50.0 79 10.5 Vcniu . . . N.P. W. C. 39.5 Venm . . . N.P. W. C v-i ii. . . . N.P. W. C 46.0 9.8 59.5 93.9 Venn. . . . N.P. we • • 10.8 Vrau ... N.P 9.8 93.0 69.5 AT SANTIAGO DB CHILE. 221 OCTOBER 23, 185U— Continued. I -. £ 1 i 47 48 « 50 51 S3 53, 51 55 56 57 58 59 60 61 63 63 64 65 66 67 68 69 70 71 7:1 73 74 in 76 77 78 79 80 81 e m 83 84 85 83 87 88 Chronometer time of irannt. rfean of wires Micr. Rev. Planet— Star. Bar. 'hermotneter* Object. A. 8. C. D. E. A a. At Air. Vet. 8. s. B. s. f, h. ni. s. s. Rev. Indies. « • Veniu . . . N.P 23.5 36.0 17.5 5.5 12.2 56.8 37.3 10.5 47.5 31.5 ; 23.8 21 26 49.17 22 27 4.55 •22 30 37.17 •22 30 52.27 52 33 41.07 23 32 58.97 S3 31 39.27 22 34 43.12 22 38 10.17 22 38 24.32 23 40 43. f! 32 40 57.30 83 45 31.67 23 1 , 34.43 25 47 40.67 2J 47 53.22 22 50 29.07 22 50 41.43 32 53 33.07 23 53 46.80 22 54 40.22 32 54 52.08 22 56 56.82 22 57 7.62 23 59 2.07 22 59 13.03 23 1 53.17 33 3 3.60 23 520.17 23 5 30.70 33 6 30.87 33 6 40.53 23 9 2.17 33 9 11.87 23 11 15.07 3) 11 34.37 23 13 34.17 23 13 42.70 31 15 42.17 23 15 50.80 23 18 20.67 33 18 28.53 —0.26 11.06 2.27 11.01 2.36 11.03 2.45 11. 11, 0.70} 9.35 0.25 e.82} 0.15 8.75 0.26 8.73 0.21 8.63 0.23 8.57 0.32 8.67 0.47 8.71} 0.44 8.81} 0.67} 8.94 0.81} 8.86 0.88 8.98 0.98 9.07} 1 09 9.23} 1.18 9.28 1.34 9.41 1.53 —9.49} —15.38 15.10 14.90 14.35 / 14.15 13.63 13.73 12.55 13.33 11.73 11.86 10.83 10.% 10.43 10-53 9.66 9.70 9.30 8.53 8.63 —7.86 +8.60 8.74 8.67 8. 66} 8.64J 8.60} 8.60 8.47 8.41 8.31 8.33 8.24} 8.37} 8.35} 8.04} 8.10 8.09} 8.13} 8.10 8.08 +7.97} 28.026 Tlii-r att 07°. 0 Bar. reel. Hi 3>° F. 27.923 28.044 Th«r att 65°. 2 Bar. red 10 3>* F 27.948 67.2 64.5 57.6 54.7 Venus . . . N.P. VV. C". . . 10.5 24.0 53.3 59.0 43.7 34.6 57.5 34 6 Venus . . . N.P. VV. C Venus . . . N.P. W. C Venus . . . N.P. W. C Venus . . . N P. \V. C 17.5 2.5 43.5 17.0 30.8 16.9 57.0 30.5 Venus . . . N.P. W. C 55.0 8.5 Venus ... N.P W. C 14.0 27.5 53.2 6.5 • • Venus . . . N.P. w.c 2.5 15.8 41 6 54 5 Venus . . , N P. W. C. 8.5 21.8 46.8 53 0 0.0 13.5 18.8 Venus . . . N.P. W. C 13.5 S7.1 Venus . . . N.P. W. C 30.3 43.5 7 5 21 0 Venus . . . N.P. W. C 33.5 48.8 13.0 3.5 30.5 40.5 13.0 34.5 43.5 35.2 16.8 44.0 53.5 25.0 37.5 55.0 4.0 42.0 39.8 30.4 57.5 7.5 38.5 51.0 9.5 17.5 53.0 Venus . . . N.P. W. C 35.5 40.0 Venus . . . N.P. W. C 53.9 7.0 Venus ... N.P W. C 4.3 17.6 Venus ... N.P W. C 35.5 49.0 Venus ... N.P \V. C 48.5 1.8 Venus ... N.P W. C 7.5 21.0 Venus ... N.P W. C 15.5 99.0 Venus ... N.P W. C 54.0 7.5 28.5 222 INFERIOR CONJUNCTION OF VENUS, 1850-51, n< TOHKR 99, 1R30- ronllnued. Rtmarkt. Mwh amfctw* la the armo.nh. Rev. Inches. • • 77 7> 7* • W ( Vrnu. . . . N.P. \V. C 14.9 3.0 87.0 18. S 16.0 5.S 40.0 30.0 S9 0 19.0 53.5 43.0 4i.O •Ji.O S7.0 SS.5 45.5 93 6 40.97 X) 999 90 33 11 98.SS 23 19 1- -4 ±0.00 —91.51 i.0.00 —21 .SS +49.63 +49.88 -Sl.il —91.55 58.030 Ther. lit. cr.o Bir. red. mar F. M H9 59.0 51.8 Vrtau . . . N.P. • • Remarks. A tolerably fair nifht, l)iou;h « itli gome hue. Tlic time wan noted by Lieut, llemdon, U. 8. N. a Recorded Ofi.Oi. at wire B. 6 Good meaMire*. c Ri i urilcd 50. Ot. at wire C. t Eli client observation*. f Recorded 3. Of. at wire C. / Not good in. H-. g I'.liirml. A l°r< muluui. Meu Results. Forty tranilti h. .m. Correction for chronometer at 23 S3 h. m. p. . 23 23 50.99 m. a. -3 9.09 + 42.54 . . Santiago >id. time N. P R-v. — 20.887 ( n -.6 47.09 h. m. i. 23 19 41.90 h. m. A f at 23 19 0.38 OCTOBER »4, 1830. No. for n-ftirnct. Object. Chronometer time of tram-it- Mean of wire. Micr. Planet— Star. Bar. rbermomeuii A. B. C. D. E. A« &i Air. W«t. li •. t. a. •. h. m. «. Her. •. Rev. Inchea. • • . Vei,u« . . . N.P. «.5 6.0 19.5 . 31 14 19.31 +2.33 96.043 65.8 55.5 > VV L- . . 57.5 . . 94.5 . . 91 15 11.00 T.MI —51.69 -4.79J 1 4 S • 7 Veiuu . . . N.P. w. c Ventu . . . N.P. IV C 41.5 95.9 54.8 45.6 38.5 98.9 98.9 8.9 59.9 59.0 39.5 13.5 54.6 8.0 91 18 8.14 91 18 £9.04 91 93 51.88 21 97 41.37 91 99 39.51 9.39 7.04| 1.64 6.521 1.99 50.90 49.49 4.63, 4.8f?i Ther. ntt 85' .5 II. r rod to 33' F. 97.943 Vrnu. . . . N.P. 19.9 8 W. U 9.0 15.3 98.5 • • • • 91 30 98.58 6.91 49.07 4.99 9 Vrnu, . . . N.P. MJ 11 6 95.0 , , , , 91 33 34.91 1.17 10 W. C <7.0 0.5 13.6 • • • • 91 33 13.68 6.10 48.77 4.93 11 U 13 a Venai . . . N.P. W. C. 6.8 90.3 8.5 16.8 33.5 91 .8 30.3 35.0 48.4 91 33 33.51 91 36 21.70 91 3830.14 0.83 5.86J 0.79J 48.19 5.03» Vrnu. . . . X P 3.4 U W. C 51.0 4.5 18.9 31.9 44.5 91 39 17.88 5.87 47.74 5.07* li« Vnai . . . N.P. 17.6 51.3 4.5 ( 91 41 4.44 0.75 '. W. C 95.5 38.8 59.9 5.5 18.8 91 41 53.16 5.82 47.79 5.07 17 * VMM . . . N.P. 7.8 91.9 31.8 t f f , 91 43 34.51 0.79 U W.C 65.0 8.3 91.6 35.0 48.4 91 4491.66 5.79 47.15 5.07 19. Veen . . . N.P. 1.0 14.5 976 f , . 91 40 97.68 0.77 90 W. C 47. « 1.0 14.9 97.7 41.0 91 47 14.30 +5.85 -46.69 -508 AT SANTIAGO DE CUILK. 225 OCTOBER. 84, 185O— Continued. •1 Chronometer lime of transit. ' Hean of wire? j Micr Planet— Slur. ' 'heruiorm'ters Object. A. R. C. D. E. A a. Ai. Air. Wet. s. ) ; • \ s. s. s. 8. h in. s. : 1'.' v. s. Rev. Inches. • • 21 22 23 24 •25 •28 27 28 29 30 :n 32 33 34 36 37 38 39 40 41 43 43 44 45 48 47 48 49 50 51 SJ 13 54 55 56 57 58 59 60 Ml tic 63 61 65 66 Venus . . . N.P. W. C 47.5 1.0 14.5 - 0.5 5.5 51.3 43.8 28.0 23.0 9.6 58.2 43.7 39.5 S3. 5 12.3 5S.3 16.3 18.4 1.0 . 4.3 46.5 6.3 48.3 41.5 22.7 51.8 32.3 24.3 4.4 2.8 42.6 6.3 45.7 35.5 14.5 1.0 39.5 32.0 10.0 9.7 47.5 49.8 37.3 38.0 4.5 56.4 33.0 27.6 , 13.5 4.5 41.5 33.0 t 33.8 • • 9.5 13.8 14.5 0.3 1.5 3J.O 45.5 17.5 58.8 27.5 52.6 23.5 0.5 40.5 18.0 27.0 i 13.0 !5.0 I 36.5 10.5 50.2 23.3 38.3 1 38.0 13.5 15.0 49.3 59.0 31.9 • • 9.5 12.5 41.0 6.3 38.8 14.0 53.8 31.5 0.2 21 19 14.31 21 50 0 -M 21 52 5.4* | 21 52 51. -22 21 54 42.74 •21 55 -28.14 21 57 -21. --1 31 58 9.72 21 59 59.01 | 23 0 43.68 ; 23 2 39.38 | 22 3 23 40 . 22 5 12.74 22 5 56.40 22 7 16.31 32 859.10 2! 11 18.23 23 12 1.15 22 14 4.31 22 14 46.75 22 17 5.91 23 17 48.23 22 22 41.38 22 23 32.70 22 25 51.54 22 25 32.28 23 28 24.14 23 23 4.40 22 31 2.71 32 31 42.66 22 34 6.18 22 34 45.63 22 37 35.48 22 38 14.33 22 40 0.81 22 40 39.48 22 42 31. El 22 43 10.08 22 45 9.71 22 45 47.40 22 47 50.03 22 48 27.20 23 50 27.88 23 51 4.75 22 52 56.31 23 53 33.10 +0.68 5.83 0.61 i S.Sil 0.5D 5.73 0.48 5.78 O.il 0.29 5.67 0.19 5.G8 0.17 5.62 0.04, +5.58 ±0.00 +5.57 —0.10 +5.41, 1.08 6.76} 0.71 6.38 0.72J 6.49, 0.61 6.49 6.60 6.44, 0.51 6.24} 0.42 6.33, 0.36 6.24, 0.29 6.25 0.2-1 6.20 0.21 6.21, +6.22 —45.03 43.74 45.10 44.91 44.67 44.03 43.63 42.89 42.87 43.51 43.32 41.32 40.74 40.26 39.95 39.45 38.85 38.67 3S.27 37.69 37.12 30.87 —3,',. 79 —5.15 5.181 5.25 5.30 5.391 5.38 5.49 5.45 5.531 5.57 5.541 5.70^ 5.67 5.77 5.88 5.841 5.731 5.911 5.681 1 5.93 5.911 6.001 -6.05J 28.012 Thfr. Mt. 65°. 5 Uar. ret), to 3!" K. 27.913 65.6 55.5 Venus . . . N.P. W. C 3S>.8 24.5 16.0 1.5 53.0 43.0 32.3 17.0 12.5 56.5 46.0 52.2 37.8 ; 39.5 14.7 11.5 55.5 45.6 30.3 28.2 10.0 59.5 43.3 3.0 45.5 5.0 47.8 51.0 33.5 53.6 34.8 23.3 9.5 33.3 19.1 10.7 51.2 49.4 29.3 53.8 32.2 22.3 1.0 47.5 26.3 18.5 56.7 56.5 31.3 36.5 11.0 14.5 51.7 43.0 19.5 Venus . . . N.P. W.C Venus . . . N.P. W. C Venus . . . N.P. VV. C Venus . . . N.P. W. C Venus . . . N.P. W. C Venui . . . N.P. W.C Venus . . . N.P. W. C 49.5 32.0 51.5 Venus . . . N.P. W. C. . . . 37.5 Venus . . . N.P. W. C 39.0 Venus . . . N.P. W. C 14.5 Venus . . . N.P. W. C. 31.6 Venus . . . N.P. W. C. . . . 57.5 Venut . . . N.P. W. C Venus . . . N.P. W. C. . 33.0 39.6 Venus . . . N.P. W.C. . 8.7 Venus . . . N.P. W. C. . . 34.0 Venm , . . N.P. W. C 5.0 Venuj . . . N.P. W. C 43.0 Venus . . . N.P. W. C 24.0 Venus . . . N.P. W. C 1.3 Veuu« . . . N.P. W. C 29.6 29 226 INFERIOR CONJUNCTION OF VENUS, 1850-61, : ( • . . Illl ter lime of Irani u \j. ,.,,•„ 1(, * Micr Planet- -flur. Bar r MM it-u r- T Object. A. B. C. D. K. Ac. A t. Air. Wet. - 4 a. a. *. •i s. h. m. i. R.-v. (. Ber. Inches. • • 67 68 Venn. . . . N.r. W. C 44.8 34.0 11.9 47 .5 0.5 14.0 93 55 11.01 38 S5 47.33 +1.96 9. OOJ —36.31 —6.041 £8.046 64.4 64.0 • 70 V«BOf . . . N.P. W. C 84.8 381 13 ( 51. 5 96 8 40 3 53 7 33 051.48 03 1 86 M 9.90 8 95 3S 43 6 OS Ttifr. mi. 63-.S Bar. red. 71 714 Venus . . . N.P. W. C 9.5 93.8 3S.S 11.8 38 5 33 3 36.84 •£i 3 11 50 S.73J 4-8 81 —35.96 —6 071 to33*F. 37.951 Remarks. Considerable haze ground the horizon ; but the planet and itar are both greatly more utrndy than on any preceding night. The ob-erations, throughout, are as good as it is powible to make them on such an object, and in that position of the instrument. a Good observations. c Scarcely visible. • Tremulous. i Too dim to observe ; recorded 43. 5f. at wire E. Results. h. m. s. Mean . . Thirty-six transits . . . 33 9 18.16 h. m. m. a. Correction for chronometer at 93 9 . . . — 3 10.63 s. Rev. -49.93 .... -5.480 . . Santiago fid. time N. P. . H . 0.06 / H 1 46.81 h. m. •. 93 6 7.63 OCTOBER 25, 1850. f Chronometer time of transit. Planet— Star. Thermometers. g Mean of wires. Mipr Rttr 1 Object. A. 6. C. D. E. icr. A«. *A DBF. Air. Wet. X £ 1 •. s. >. m. s. h. m. n. Rev. m. a. Rev. Inches. • • 1 Venus . . . N.P. 30.6 44.0 57.5 10.8 34 3 91 99 57.44 — 0.76J 97.991 68.0 55.4 •• w.c 7.S . . 31 * 47.4 1.0 91 34 34.18 10.53, —4 36.74 +9.76 Then att 3 Venoi . . . N.P. 57.6 106 94.3 37.5 51.0 91 37 34.18 1.99 68'. 0 4 W.C 33.0 46.5 69.8 13.0 96.5 91 41 59.76 11.56 4 35.58 9.57 Bar. red. to 33' F. 97.884 t Venu . . . N.P. 53.6 7.1 90.5 33.6 47.4 91 45 20.44 9.35 II W.C 98.9 41.4 54.6 8.0 91.5 31 49 64.74 11.77, 4 34.30 8.49, 7 Venui . . . N.P. 33.9 46.6 0.0 13.4 26.7 91 51 59.98 9.30 8 W. 0 6.5 19.6 33.3 46.6 69.8 91 66 33.13 11.70 4 33.14 9.40 8 Venun . . . N.P. 175 30.8 44.3 57.* 11.0 91 58 44.94 9.33J 10 W.C 60.0 3.4 16.8 30.0 43.4 99 3 16.78 11.811 4 99.48 >.48 11 Venus . • . N.P. 99.5 43.9 66.6 9.6 33.3 93 5 66.44 0.13 18 W. C 1.0 14.9 37.6 41.0 64.5 39 10 37.66 9 3St 4 31.93 9.35, 11 Venus . . . N.P. 1.0 14.3 37.7 40.8 54.4 99 13 97.64 • .W, 0.61} 14 W.C 31.9 44.6 67.7 11.0 94.6 93 17 57.83 -9.71 4 30.13 9.09i H Venus. . . N.P. 68.5 13.0 96.9 38.5 51.6 899095.16 43.61, 1C W.C 17.5 41.0 64.5 7.5 91.0 939464.30 -6.464 499.14 9.08 17 Venus . . . N.P. SS.5 11.5 95.9 38.5 53.0 999895.14 +5.61, U W. C 39.9 .'•3 0 r. 9 19.6 29 39 59.99 3t41 i . sid. time. There is evidently an error of 2m. in Its A. R. Measures generally fair. c Tremulous— a little open. d A little close. a Recorded 57. Ss. at wire A. & Rather too close. M.T1M Twenty-one transits b. m. Correction for chronometer at 33 40 . Results. h. m. s. 22 40 11.60 m. s. — 4 96.14 . . . Rev. + 8.844 1 H . . . =353.37 m. s. — 3 12.49 h. m. s. . 22 36 59.11 b. m. A p at 22 55 0.13 228 INFERIOR CONJUNCTION OF VENUS, 1 8-50-51, 01 TOBKK ae. 1K50. j Object. Chronometer lime of iraimt. MwaoTirlm. . Mlcr. PUnet— Star. Bar. Tlirrmnmeteti A. B. 0. D. K. *.. A I. Air. \V,i li. m. •. Rev. m. i. Rev. Incliei. • 58.5 1 9 3 4 5 6 7 8 9 10 11 14 15 16 17 18 19 90 93 93 M . - ' 31 33 34 . 37 ' 40 41 11 43 41 • 48 Venui . . . X.P. 33.0 W. C. 46.9 49.5 16.0 45.0 47.5 19.4 91.9 13.7 14.7 19.3 20.9 90.5 91.0 25.0 353 14.9 13.5 3.6 1.5 56.0 54.6 19.5 17.5 17.3 14.8 50.7 47.6 31.0 27.3 50.5 46.9 15.5 11.9 43.5 38.5 95.5 90.0 33.5 98.6 59.0 5.5 58.2 47.5 N.5 59.6 3.0 99.3 31.3 58.8 0.5 33.5 34.3 27.0 2P.3 33.5 33.6 34.3 34.5 38.3 38.5 37.6 96.5 16.3 15.0 9.4 7.7 33.8 30.7 30.6 28.0 4.0 1.0 44.5 41.0 3.7 59.5 28.8 91.5 66.8 53.0 38.8 33.4 47.0 19.5 19.3 19.0 11.0 0.8 51.5 ia.3 49.5 45.3 11.8 14.9 4-,.0 47.6 40.3 41.3 4fi.O 46.8 47.5 47.8 51.5 51.7 40.8 29.5 28.0 2).8 21.0 46.3 44.0 4X5 41.5 17.5 14.3 67.6 54.5 17.1 12.8 42.3 37.7 10.3 5.0 69.5 47.0 0.3 53.5 33 0 95.5 31.3 34.5 14.3 6.6 96.6 1.0 54.6 0.5 1.3 5.3 53.5 41.7 34.5 57 5 55.9 27.6 8.0 96.3 61.0 0.0 8.8 39.0 37.8 19.9 91 33 50.63 91 35 9.89 91 37 S3 JO 91 X 32.13 31 40 58.64 31 41 0.7J 21 44 33.64 11 4-> 34.34 21 48 36.93 21 49 28.0} 21 51 33.54 21 52 33.58 91 54 31.07 31 55 34.43 31 57 38.34 21 58 38.44 93 1 27.41 93 2S1.69 33 5 16.14 33 6 14.87 23 8 9.37 32 9 7.80 91 11 32.83 32 12 30.74 29 14 30.47 23 15 28.14 22 18 4.01 2} 19 0.94 2391 44.37 21 23 40.99 21 25 3.F9 22 2S 59.46 23 28 28.73 23 29 94.43 93 31 56.94 32 31 51.84 33 35 38.79 99 38 33.43 31 4} 46.93 234340.06 23 46 19.47 93 47 13.97 S949 18 87 9950 11.19 99 54 0.83 9954 59.77 -4.94 10.43) 1.10) 10. :I7 1.17 10.41 1.09) 10.40 10.40 1 0.1 10.50 1.07) 10.48J 0.99) 10.53) 1.08) 10.50) 1.03 10.58) 1.02 10.56) 0.95) 10.52 0.90 10.53 1.18 10.81 0.94) 10.64) 0.90) 10.58) 1.21) 11.06) 1.83J 11.13 1.24) 11.13 1.43) 11.37) 1.38 11.97 1.31 11.33) 1.71 -11.91 —1 3.97 1 9.90 1 3.08 1 1.70 1 1.04 1 1.04 1 0.3i I 0.30 59.25 £8.73 58.43 £7.93 57.67 H.90 5662 55.57 53.70 54.80 64.63 53.14 51.80 51.33 —51.95 49.19) 9. IP) r.24 9.30) 9.34) 9.45 9.41 9.54 9.41 9.55) 9.54) 9. 55) 9.63 9.63 9.70 9.68 9.85 9.89) 9.87) 9.85 9.80 10.03) +10.20 27.980 Thi-r. nit. Bar. ted. 10 J>- F. 37.851 67.0 Vrnni . . . X.P. W. C V. Mil. . . . N P. \v. c Vcnr N.P. w. >• Venm . . . N.P. W. C 2.5 5.5 31.3 34.0 6.0 7.6 0.9 Vecui . . . N.P. W. C 5.7 6.8 7.3 7.5 11.5 11.5 0.5 49.5 Venui . . . N.P. \V (' Venui . . . N.P. W.C Venui . . . N.P. W.C Venm . . . N.P. W.C Venui . . . N.P. W. «: 43.G 41.2 6.0 Vrnu< . . . N P. \v. c V--nu» . . . N.P. W. C Venui . . . N.P. W.C 1.3 37.3 Venui . . . N.P. \V. c 17.7 Vcnui . . . N.P. we Venai . . . N.P. W. C 37.6 : - .. 1.6 Venui . . . N.P. W. C Vrnui . . . N.P. W. C 30.5 19.0 Venui . . . N.P. W.C Traw . . . N.P. W. C 90.2 5J.5 Venni . . . N.P. W.C 52.0 Venui . . . N.P. W.C 34.0 AT SANTIAGO DE CHILE. f 29 OCTOBER 26, 1850 -Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. I). C. D. E. A a. 6.1. Air. Wet. s. s. 8. ft. s. h. m. a. Rev. 8. Rev. Inches. • 0 47 48 d 49 50 51 52 Me 54 Venus . . . N.P. W.C.. 38.5 42.3 55.5 46.8 8.5 0.0 22.4 22 57 55.44 22 58 46.74 23 0 1.89 23 0 52.67 93 3 2.14 23 3 52.36 23 5 35.47 23 6 23.24 — 1.65 11.50} 1.531 11.70 1.521 11.75 1.41 — 11.61 —51.30 50.78 50.22 —49.77 +9.851 10 16J 10.221 + 10.20 27.962 Ther. ntt. 64°. 5 Bar. rrcl. to32°F 27.866 61.0 53.1 Venus . . . N.P. W. C 35.2 39.4 48.8 39.3 23.2 18.0 1.8 52.5 2.3 52.4 35.5 25.2 15.3 6.0 15.5 5.5 49.0 38.5 19.5 19.0 ' ' Venus . . . N.P. W. C 35.3 Venus . . . N.P. W. C 8.5 Remarks. Hazy throughout the evening. Planet well defined, but star dim, and the measures only fair. The difference in A. R., from that given in Uio Euheraeris, fame a* List night. a Recorded 58.6i. at wire A. d Cirri. 6 Recorded 41.5s. at wire C. e Interrupted by clouds. e Tremulous. Results. Mean . . Twenty-seven transits . • h. m. Correction for chronometer at 22 20 . , h. m s. 22 20 0.22 m. s. — 3 14.15 s. f ev. — 58.71 .... +9.683 Santiago sid. lime N. P. . = : 8.73 h. m. s. 22 16 46.07 h. m. A pat 22 17 0.10 OCTOBER 27, 1850. Nijlit overcast. OCTOBKR US, The night was wholly ovurcast. OCTOBER 29, 1850. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. D. C. D. E. A a. AJ. Air. Wet. s. «. s. s. s. li. m. s. R«. in. s. Rev. Indies. • • la W. C 40.3 53.5 7.0 20.2 33.5 21 48 6.90 —13.261 28.244 52.5 46.0 9 Venus . . . N.P. 13.5 27.0 40.4 53.8 7.0 21 51 40.34 + 16.80 +333.44 +30.061 3 4 5 W. C Venus . . . N.P. W. C 19.5 53.5 21.2 33.0 7.0 34.6 46.2 20.5 59.8 33.5 13.0 47.0 21 54 46.30 21 58 20.30 22 2 47.94 —12.921 +17.271 —12.80 3 34.00 30.20 Ther. att. 59°. 7 Bar. red. lo 32° F. 28.161 e Venus . . . N.P. 56.5 10.0 23.5 • • 50.5 22 6 33.45 + 17.231 3 35.51 30.031 76 W. C 5.5 19.2 32.5 59.5 23 10 32.50 —13.10 8 1 10 Venus . . . N.P. W. C 50.5 22.2 7.8 4.0 35.5 21.2 17.0 49.0 35.0 30.5 2.0 48 3 44.5 16.0 1.7 23 14 17. 3D 23 17 48.94 23 21 34.80 +16.38 —12.97 +16.52 3 44.80 +3 45.80 29.48 +29.49 Venus . . . N.P. 230 INFE8IOR CONJUNCTION OF VENUS, 1860-61, OCTOBER M. IMO-C-OBtlnurd. & £ Object. Chronometer lime of transit. Mean of wire. ' Mlrr. rianrt— Star. Bar. TbaraMMieiers. A. B. C. D. E. A«. A i. Air. Wet. h. m. s. Kov. m. m. Rev. Inch.-.. • • 11 11 13 14 W. C Venus . . . N.P. W. C 90.5 7.8 43.8 32.0 34.9 91.5 57.3 45.5 47.5 34.7 10.5 59.0 1.0 48.3 94.0 19.5 14.5 1.8 37.5 96.0 93 96 47.54 93 30 34.89 33 33 10.58 •23 36 59.00 —11.98 +17.41 -11.81 +17.68 +347.88 +348.49 +99.39 +29.99 98.944 Ther. utt. 59*.7 BJT. ml. II.32-F. M !M 99.S 46.0 Venus . . . N.P. Remarks. Venm appears like in image in a buin of agitated mercury, and i> wholly impossible In meanure with any degree of accuracy under a power of 150. Effort* were made with lower powen from 38*. 6m. until 23*. 10m. tid. time; but it was still found impracticable, a cold SE. wind (from the Andeij evidently producing rapid changes In the refraction. a Recorded 21* 47«. 6.90». i Recorded 93*. 9m. 33.50>. Wrong star. Evidently the one on the map in A. R. 17*. 13m. 30«. ± Dec. — 97' 33' ±. Results. Mean . . . First three transits . Mean . . . Last four transits h. m Correction for chronometer at 31 59 . Correction for chronometer at 23 26 . h. m. A»at3lS3 h. m. a. 91 58 48.03 9325 51.48 m. t. — 3 17.87 — 3 17.90 m. 0. + 3 34.32 + 3 46.59 Rev. + 30.100 + 29.419 0.24 . . =9 46.65 . . =9 33.34 h. m. a. Santiago sid. time N. P 915530.16 Santiago aid. time N. P 333233.58 h. m. " A f at 23 31 0.80 OCTOBER 30, 18»O. j Chronometer time of transit. Planet— Star. Thermometers. I Object. A. B. C. D. E. A a. At Air. Wet. 1 J «. t. a. a. a. b. m. s. Rev. m. a. Rev. Inches. • • 1 W.C 33.5 46.5 59.5 . . 33 97 59.89 — 11.74J 38.014 60.5 50.0 i Venui . . . N.P. 31.0 44.4 57.6 11.1 94.6 33 34 57.74 + 5.64 +6 57.85 +17.38, Ther. att. > W. C 47.5 0.8 14.5 97.5 41.0 23 38 14.96 -12.64 62' .3 4 Venm . . . N.P. 46.5 0.0 13.9 96.5 40.0 93 45 13.94 + 5.07 658.98 17.71 Bar. red. •„. :<} f. 37.925 S W.C 35.0 47.5 1.5 14.0 98.0 S3 48 1.90 — 12.51, •• Venui . . . N.P. 35.0 48.5 1.5 15.5 38.8 32 55 1.86 + 5.10 7 0.66 17.61, 7 49.8 3.3 93 58 3.94 —13.45 8 Veaus . . . N.P. 38.5 59.3 5.5 18.8 33.9 33 5 5.46 + 5.10 7 9.33 17.55 •1 W. C t f 33.8 47.5 1.0 ( , 93 7 47.44 —19.83 10 Venus . . . N P. 93.7 37.5 50.6 4.1 17.5 93 14 50.68 — 5.08 +7 3.94 + 17.89 Remarks. A beautiful night; the planet w«ll defined, Heady, and with iharp cu»pi. The star in very faint, and there are others equally bright nearer tha planet. a A little open. > Seen through cirri. Results. h. m. a. M«M . . . . Five tranitis . ... 99 55 1.80 h. m. m. i. Corraeiloaj for chronometer at 99 55 .. — 3 18.44 h. m. A f >t 95 48 . . . Rev. + T 0.59 .... +17.630 . . / H . =S 43.61 h. m. a. Santiago sid. time N.P U 51 43.36 . 0.13 AT SANTIAGO DE CHILE. 231 OCTOBER 31, 1850. No. for reference. Object. Chronometer time of tiansit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A. ^'.° " Bar. red. to 32° K. 27.893 28.012 Ther. all. 6V. 5 liar. ml. t" 3-2' F. 27.910 67.5 62.6 57.8 56.3 Venui . . . N.P. Venus . . . N.P. Venus . . . N.P. Venui . . N.P. Venus . . . N.P. VCDUI . . . N.P. Venus . . . N.P. Venni . . . N.P. 91.5 48.2 10.5 Venus . . . N.P. Remarks. Fine night. Planet steady and well-defined. It was subsequently ascertained that the proper comparing star follows the planet, and therefore the observations are not comparable. c Recorded 33.5s. at wire E. Good measures. a Recorded 2-2*. 10m. 58.20«. 6 Good measures. d Tremulous. Results. ti. m. •. Mean . . . Nine transits .... 93 2 11.53 m. s. + 9 15.40 . R«v. . +1.474 . . h. in. Correction for chronometer at 23 2 m. s. — 3 20.14 Santiago sid. time N. P. . . . h. m. A pat 22 54 0.02 . =0 28.73 h. m. s. 92 58 51. 3D NOVEMBER 1, 1850. j Chronometer time of transit. Planet— Star. Thermometers. | Object. A. B. C. D. E. A«. A*. Air. Wet. s e s. PJ s. s. 8. h. m.i. Rev. m. s. Rev. Inches. • • 1 Venus . . . N.P. 37.8 51.2 4.5 18.0 31.5 21 49 4.60 + 5.02} 27.984 73.0 58.5 2 I.aiMille . . 7371 15.5 99.0 43.2 55.8 9.4 21 51 42.38 —13.38 —2 37.78 +17.3S} Thor. att. 3a Venus . . . N.P. 29.3 43.1 56.3 9.8 23.4 91 54 56.38 + 5.00 72°. 0 4 Lacaille . . 7371 6.5 90.0 33.6 46.9 0.2 21 57 33.44 —12.35} 2 37.06 17.35} Bar. n.' 31 36.00 + S.331 ie LKUIK . . 7371 41.3 54.8 8.-) 31.5 35.0 22 31 8.14 -n.-'l 3 32.11 17.19 u Vrnu- . . . N.P. 96.5 40.0 53 8 6.8 90.5 22 36 53.53 + S.25J l.acaille . . 7371 S8.0 11.5 94.6 38.7 52.0 23 39 34.96 -11.8«t 331.44 17.14 ii . . . N.P. 1.3 14.« 38.0 41.6 55.9 334328.14 + S.9-J 99 Lacailla . . 7371 31.8 45.3 58.C 19.4 |}.< 23 45 58.76 -11. 7G 3 30.63 17.03; • Veniu . . . N.P. 40.5 3.0 1C.5 30.0 43.6 3-1 48 16.52 + 5.58 Laeallle . . 7371 19.6 33.9 46.8 0.0 13.5 23 50 46.63 —11.57 9 30.10 17.15 • Vrnu. . . . N.P. 39.7 53.4 7.1 90.3 33.9 3253 6.88 + 5.6JJ M Ucaille • . 7371 9.4 23.9 36.9 49.5 3.2 235536.34 —11.38 17.00; 0J Venm . . . N.P. 35.5 48.8 2.9 15.8 29.5 23 58 9.36 + 5.72 Laraille . . 7371 4.0 17.9 91.3 44.8 56.3 33 0 31 .24 -11.30 228.88 17.01 IJM Venn. . . . N.P. S8.2 40.0 53.5 6.8 90.5 S3 9 53.40 + 5.64 M LtcaUl*. . . 7371 51.5 8.0 91.5 35.0 48.6 33 591.5] —11.33 9 28.12 16.97 • • Venn- . . . N.P. 8.0 SI .5 35.9 48.3 9.0 93 7 35.00 + 5.69 • L.c.,11. . . 7371 • • 49.0 3.5 1C.O M.S 33 10 3.53 -11.35 237.53 17.04 • Ven»a . . . N P. 56.0 9.5 23.0 36.3 50.0 33 19 99.98 + 5.R1 M l.ac-aille . . 7371 S3.0 3C.2 49.5 3.0 16.6 93 14 49.66 -11.20 226.70 17.01 • Vrnoi . . . N.P. S3.3 7.0 90.5 34.0 47.5 33 17 30.46 + 5.73 m Liraille . . 73.1 19.5 33.0 48.5 0.9 14.0 23 19 46.64 —11.93 238.18 16.95 SI V*»B. . . . N.P. 38.5 93.3 5.5 19.0 33.6 3323 5.58 + 5.74 M Larallle . . 7371 4.5 17.8 31.3 44.8 5B.3 33 95 31.33 -11.19 991.74 16.93 ' Vefcui . . . N.P. 8.0 91.5 34.7 48.9 1.7 93 97 34 8J + 5.73 97.990 63.0 51.8 40 Lacaille . . 7371 338 48.3 59.6 13.4 98.8 33 29 59.78 —11.194 934.96 16.91; 'I'l I'T. lltt 41 Vrnu. . . . N.P. 48.0 1.5 15.0 98.5 49.0 3333 15.00 + 5.501 67«'.0 49 Lacalllc . . 7371 19.9 35.8 39.4 52.6 6.4 333539.38 -11.40 994.98 16.90; liar- r«l. to 32' F. 4M Venn. . . . N P. ... . 41.8 S5.S 8.5 99.5 33 3755.30 + 5.34 B7.M 44 l.araillc . .7371 51.5 5.5 18.5 32.3 46.0 83 40 18.76 -11.53J -233.46 +16.87; Remarks. NcMMC plant! awr Mar well drflnrd M any period of U» observations The day hu been eitreniely warm, and a cold wind let in Iram ihc Andn lBUB«liiirl> allrr luntrt. Tbf »ur la certainly of 6.7 ni.i(niiude. • A little irtnmlom. 4 Very tri-muloui. » Becorded 5.0i. M irtr* C. t \ ( ry iremulaui and much l.lair<-<>. 3. 3f U wirr E. / Con). AT SANTIAGO DE CHILK. NOVEMBER 1, 1850— Continued. Results. 233 h. m. 9. Mean . Twenty two transits . . . 22 44 30.06 h. m. in. p. Correction for chronometer at 22 44 . . — 323.48 m. s. Rev. — 2 30.53 . . . . -f- 17.106 . . Santiago sid. time N. P. = 5 33.40 h. m. B. ea -a 8.48 h. m. A pat 22 42 0.19 NOVEMBER «, 1850. No. for reference. Object. Chronometer time of tninttt. Mean of wires. Micr. Planet— Star. Thermometers A. B. C. D. E. A a. AcJ. Air. Wet. Rev. 8. / Rev. Inches. a 1 Lacaille . . 7371 5.2 16.5 33.0 . . 22 19 31.97 + 10.35 28.048 62.8 50.9 3 3 4 5 0 7 8 Venus . . . N.P. Lacaille . . 7371 Venus . . . N.P. Lacaille . . 7371 Venus . . . N.P. Laeaille . . 7371 Venu. . . . N.P. 17.1 B0.7 * • 51.0 50.5 30.5 3.0 34.9 7.2 4.5 37.6 4.0 17.5 . . 1 . - 31.4 29 SO 4.14 22 23 43.91 22 24 16.41 22 36 47.58 32 27 20.71 23 30 17.88 22 30 51.24 0.70 10.53 0.54 13. SO 3.68 13.73 3.80 +32.17 32.50 33.15 33.38 —9.65 9. £9 10.02 9.95 Ther. ntt 65\5 Bar. red. to 32° F. 27.949 16.5 39.5 43.5 30.5 34.3 47.8 51.9 4.5 18.5 9 10 11 Laeaille . . 7371 Venus . . . N.P. 18.8 33.5 6.3 1.0 46.0 19.5 14.5 33.0 46.7 22 32 45.83 32 33 19.64 22 35 14.40 13.82 3.86 13.84 33.81 9.96 Laeaille . . 7371 47.5 19 Venus . . . N.P. • • 34.5 48.0 1.5 15.6 22 35 48.19 3.83 33.79 10.01 13a Laeaille . . 7371 17.7 31.9 44.7 . , 33 37 44.60 13.731 14 Venus . . . N.P. • • 5.5 19.1 39.5 46.9 22 38 19.11 3.80 34.51 9.931 IS Laeaille . . 7371 40.3 5».7 13.0 . , . . 82 40 13.07 13.73 16 Venus . . . N.P. • • 31.8 48.0 1.5 13. 0 22 40 48.11 3.84, 33.04 9.88} 174 Laeaille . . 7371 15.6 29.0 43.5 . m 22 43 49.43 13.69 18 Venus . . . N.P. 4.5 17.8 31.0 44.6 82 43 17.76 3.85 35.33 9.84 11 Laeaille . . 7371 16.8 30.4 43.8 . 92 45 43.73 13.75J 30 Venm . . . N.P. 6.5 19.5 33.8 48.5 22 46 19.61 3. S3, 35.88 9.92 SI 22 93e Laeaille . . 7371 Venus . . . N P. 14.8 S8.1 3.8 .17.0 41.5 17.9 10.3 30.8 44.3 22 48 41.53 32 49 17.31 23 51 10.33 13.63 3.731 13.61 35.78 9.901 Laeaille . . 7371 43.5 94 Venus . . . N.P. 33.0 46.5 0.0 13.5 33 51 46.54 3.68 36.21 9.93 25 Laeaille . . 7371 28.9 39.6 53.0 92 53 53.00 13.59 X Venus . . . N.P. • • 16.0 39.5 43.0 56.5 22 54 39.54 3.73 36.54 9.86 27 tacaille . . 7371 9.0 83.5 36.0 . . 93 56 05.90 13.561 98 Venus . . . N.P. • • 59.9 12.7 33.0 39.7 32 57 13.69 3.60 38.79 9.961 29 Laeaille . . 7371 31.4 44.8 58.1 . 22 59 58.17 13.491 30 VCBUI . . . N.P. 82.6 35.5 48.8 2.5 S3 0 35.64 3. 01 37.47 9.861 31 33 LacRlllr . . 7371 Venus . . . N.P. 7.5 SO. 8 58.5 34.5 13.0 35.5 39.1 33 9 31.33 33 3 13.06 13.461 3.63 37.73 0 9.831 33 34 Laeaille . . 7371 Venui . . . N.P. 41.0 54.3 33.1 7.8 45.7 59.0 12.8 23 5 7.77 33 5 45.69 13.49 3.63 37.92 9.83 35 Laeaille . . 7371 15.1 28.5 43.0 . t t f 33 7 41 .93 13.39 36 Venus . . . N.P. 6.6 30.3 33.6 47.5 93 8 20.29 +3.541 +38.36 —9.841 30' 2:'. I INFERIOR CONJUNCTION OF VENUS, 1850-61, \ t 1 \ 1 M It ER fl •M i -iv m. 1 C er time < >f lnin.ll . '. 1. ' 1\ IT. . allrr Planet- Star. Bar. lii-riniiii MN 1 0*ei. A. B. C. D. E. Iran ot HIIW BaaBn Ac. A i. Air. Wei e b. m. a. Rev. Rev. Inches. , t i 37 Larwlle . . 7371 9.0 15.3 99.0 . . 93 10 98.83 +13.47} 98.048 69.8 50.9 38 Venn. . . . N.P. . . 51.5 7.8 91.0 34.5 93 11 7.74 3.55 -fSX.Sl -9.99} Ther.att. 3§ Laraille . . 7371 39.9 59.6 6.0 93 13 6.00 13.36 6i'.5 40 Vraut N.P. 33 1 45.0 58.5 19.1 93 13 45.91 3.58 39.91 9.78 I: H r..l. t-:tj r. 41 Lacaille . . 7371 9.5 93.1 36.6 , . 93 15 36.47 13.43 41 Venu . . . N.P. • • 3.1 16.0 99.5 43.9 33 16 16.94 3.60 39.77 9.83 43 l.ar.ille . . 7371 49.5 55.8 9.3 t . 33 18 9.97 13.33| 44 Venui . . . N.P. • • 3S.5 48.8 9.4 16.0 33 18 48.96 3.55J 39.69 9.78 45 Lacaille . . 7371 96.5 39.8 S3.5 f t t f 3330 53.33 13.39 «• Vouu . . . N.P. • • 90.0 33.0 46.6 0.9 33 SI 33.34 3.56 39.91 9.83 47 Laraille . . 7371 9.5 16.0 99.5 . . 93 93 89.40 13.35 48 Venua . . . N.P. • • 56.5 9.6 S3. 3 36.8 33 34 9.81 3.53 40.41 9.89 49 Laraille . .7371 38.0 51.5 4.5 . 9398 4.73 13.494 SO Venn. . . . N.P. • • 39.0 45.5 59.1 19.6 3396 45.59 3.57} 40.88 9.85 M Laraille . . 7371 94.0 37.9 50.6 . 33 28 50.67 13.35 SB Venu> . . . N.P. 18.5 31.8 45.3 58.8 33 29 31.89 3.49 41.33 9.86 a Larallle . . 7371 57.5 11.0 94.5 33 31 34.40 13.38} M Veaiu . . . N.P. 38.5 53.5 6.0 19.5 33.9 33 33 5.94 3.58 41.54 9.80} OS Laraille . . 7371 49.7 3 5 16.8 . . 93 34 16.73 13.59 5t Vrniu . . . N.P. 31.3 44.5 58.5 13.0 95.5 33 34 58.34 3.74 41.61 9.78 57 Laraille . . 7371 90.5 33.8 47.4 . . 33 36 47.30 13.57 98.079 53.0 47.6 SB Venui . . . N.P. 9.0 15.5 99.4 43.0 56.5 333739.38 3.77 41.98 9.80 M Lacaille . . 7371 9.6 16.0 99.5 , , . . 93 3939.43 13.59 Ther.att M Ve.ua . . . N.P. • • 58.5 11.6 95.3 38.7 9340 11.81 3.83} 43.38 MH Bv. ,! .1 « Laeaille . . 7371 50.5 3.5 17.5 t t f 33 43 17.93 13.69} •MB * Vena . . . N.P. 33.6 47.0 0.5 14.0 97.5 93 43 0.33 + 3.90 443.09 -9.79} Remarks. After the ihird diflerenlial the rirri pw>rd away, and both plant i and uar wrn' well denned and mrmly until Ibe lut meuuro. The Bret olxer- ration wa§ made through rluud., and ii not reliable j the oUirn are (renerally vrry fair. • Clear. i Beautiful. c A little open. Mean . . . Thirty-one tranaiu . h. m. ComtUon for chronometer al 93 3 . h. m. •. 93 936.10 m. i. —394.89 h. m. A f at 99 50 a. Rev. + 37.64 .... -9.8C6 Banting lid. time N. P. . 0.13 I H . =3 19.39 h. m. a. 99 59 11.98 NOVEHBKR 3, I- •". i 1'iiidy. AT SANTIAGO DE CHILE. 235 NOVEMBER 4, 185O. i Chronometer time of transit. Micr. Planet— Star. Bar. Thermometers. s Object. A. B. C. D. E. A a. A I. Air. Wet. £ 6 8. 6. 8. B. b. m. s. Rev. m. B. Rev. Inches. e a 1C. 1 Lacaille . . 7371 4.5 18.3 31.5 45.0 58.5 21 53 31.54 -7.784 28.026 64.0 54.3 3 Venus . . . N.P. 31.0 44.5 57.8 11.4 95.0 21 59 57.94 7.534 +6 26.40 +0.23 Ther. att. 3 Lacaille . . 7371 57.2 10.8 24.2 37.6 51.0 32 4 34.16 8.39 64M 4 Venus . . . N.P. 24.6 38.3 51.7 5.2 18.6 22 10 51.66 8.154 6 37.50 0.234 Bar. red. to 32° F. 27.931 5 Lacaille . .7371 59.4 13.2 26.8 39.9 53.0 22 13 36.46 8.02 6 a Venus . . . N.P. 37.5 41.0 54.9 8.0 21 .« 32 19 54.70 7.804 6 28.24 0.314 7 Lacaille . . 7371 31.3 37.5 51.9 4.7 18.3 22 21 51.30 7.874 8 Venus . . . N.P. 54.0 7.5 21.0 34.3 47.6 22 28 20.60 7.64 6 29.60 0.234 V Lacaille . . 7371 56.7 10.5 33.5 37.3 51.0 22 30 23.80 7.79 10 V.M.I, . . . N P. 37.5 41.0 54.7 8.0 91.5 22 36 54.54 7.55 6 30.74 0.94 n Lacaille . . 7371 15.5 98.5 43.0 55.5 9.1 33 38 42.14 7.77 196 Venus . . . N.P. 47.0 0.3 13.8 37.0 40.7 32 45 13.76 7.524 6 31.62 0.944 H. Lacaille . . 7371 47.5 0.6 14.0 97.5 41.3 23 47 14.18 7.734 28.040 53.0 49.1 14 Venus . . . N.P. 19.8 33.5 46.7 0.3 13.6 22 53 46.76 7.434 6 32.58 0.30 Ther. att. 15 Lacaille . . 7371 3.5 17.0 30.5 44.0 57.5 22 58 30.50 7.894 60° .0 16 1 Venus . . . N.P. 37.5 50.5 4.4 17.8 31.5 93 5 4.34 7.594 6 33 84 0.30 Bar. red. to 32° F. 27.957 17 Lacaille . . 7371 51.5 5.0 18.6 31.9 45.4 23 7 18.48 7.85 18 e Venus . . . N.P. 96.5 39.8 53.3 6.5 30.3 23 13 53.34 -7.65 +6 34.76 +0.90 Remarks. Night clear. The planet being flaring and unsteady, put on the cap with an aperture of 4 inches. This permitted the first six measures to be made very well. a A little blurred. d Very difficult to observe. 6 Blurred and tremulous. e Too tremulous. e Both objects blurred and tremulous. Results. Mean .... Nine transit] . . h. m. Correction for chronometer at 32 37 h. m. B. . 22 37 6.42 in. s. . — 3 29.08 + 630.59 . Rev. + 0.244 Santiago sid. time N. P. b. m. * A fat 22 30 . . . 0.00 NOVEMBER 5, 1850. Cloudy. . =0 4.76 b. m. B. 22 33 37.34 NOVEMBER 6, 185O. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A a. AJ. Air. Wet. B. 8. B. 8. B. h. m. s. Rev. m. B. Rev. Inches. « e 1 Venus . . . N.P. 53.0 6.5 19.5 33.5 47.0 33 6 19.90 — 3.36 28.006 59.7 53.0 3 3 4 W. C Venus . . . N.P. W. C 58.0 9.2 14.0 13.5 93.5 97.5 36.0 36.0 41.0 39.2 49.5 54.5 59.8 3.8 7.3 29 9 35.80 33 12 36.00 92 15 40.84 12.344 4.03 —12.924 —3 5.90 -3 4.84 +8.984 +8.894 Ther. att. 68«.9 Bar. red. to 32° F. 27.8% 236 INFERIOR CONJUNCTION OF VENUS, 1850-51, i 0^1 OhraMBCttr Unit of trnn.it. Mlcr. PIMM*- Stv. Bmr. A B. C. D. E. A.. A& Air. 4! h. m. *. lUv. III. •• Her. Inches. . . £ , Vrnu. . . . N.P. 46.0 58 7 13.1 96.4 40.3 31 99 19.94 -3.131 28.005 54.5 50.9 6 60.5 . . 16.5 30.0 41.0 •-••-•..' 12.01 —3 3.9S +8.87J Ther. Ml 7 Venn. . . . N.P. 39.7 52.5 6.9 19.8 13.3 3998 6.30 62'. 0 8 W. C 43.0 . . 9.5 93.9 367 93 31 9.74 ll.W 3 3.44 8 941 "as-"?.' 27.916 ( Vrnu. . . . N.P. 54.5 8.9 91.8 35.9 48.8 99 34 91.70 3.88 W \V. C 57.5 11.0 94.3 37.8 51.5 933794.49 11.89 3 2.72 8.94 11 \>nu< . . . N.P. 93.3 37.0 50.5 3.5 17.5 223950.36 9.69 19 W. C 95.5 .'3.5 6.0 19.5 33 42 52.50 11.63 3 3.14 8.94 13 V«MM . . . N.P. 15.5 99.8 49.5 56.0 9.7 93 46 42.70 9.60 M W. C 17.1 30.6 44.0 57.0 10.8 28 49 43.90 11.601 3 1.90 9.001 IS Vrnu. . . . N.P. 49.5 3.0 16.5 99.9 43.5 93 53 16.48 9.44 16 W.C 50.0 3.5 16.8 39.9 43.8 23 56 16.86 11.34 3 0.38 8.90 17 \>nu« . . . N.P. 55.5 8.6 92.0 35.5 49.5 .•:.•-..• 1 18 W.C. 55.5 8.5 .' 35.5 49.0 93 1 99.14 11.99 2 £9.93 8.991 19 Venn. . . . X I: 11.5 95.0 38.8 59.1 5.8 93 3 38.64 9.94 •to W.C 11.9 94.6 38.0 01.5 5 0 S3 638.06 11.231 2 59.42 8.991 91 Vrnu. . . . N.P. 15.0 98.5 43.0 55.5 9.0 23 849.00 9.11 (9 W. C. . . . 14.5 97.5 41.0 54.6 8.0 33 11 41.13 11.08 3 59.13 8.95 Ven«« . . . N.P. 9.0 15.7 99.0 42.5 56.0 93 14 99.04 3.19 M W.C 0.5 13.7 97.0 40. 5 51.0 93 17 !J7.14 12.18 3 53.10 8.99 IB Venn. . . . N.P. 1.5 15.5 99.5 49.3 55.5 93 19 28.66 3.90 M W.C. . 59 3 26.2 39.7 53.3 23 22 28.26 19.95 •_• .:.<••< 9.05 17 VMMU . . . N.P. 10.5 94.9 37.5 51.9 4.3 .T7.58 3.13 M W.C 7.8 91.0 34.6 48.0 1.5 23 97 34.58 12.11 3 57.00 8.98 ft \>DU« . . . N.P. 93.5 35.8 49.5 3.9 939936.00 3. HI » W.C 5.5 19.0 33.3 45.9 59.5 23 33 32.44 12.33 953.44 9.08J 31 \>nu« . . . N.P. 99.9 35.6 49.9 - 16.0 9331 49.19 3.151 a W. C 18.9 31.5 45.0 58.5 19.0 93 37 45.04 19.15 2 55.99 8.991 ai Vcrai . . . N.P. 17.9 30.5 44.3 57.8 11.5 933944.96 3.11 14 : - 96.9 39.5 53.0 6.5 93 49 3D. 60 19.14 9 55.34 9.03 Vr M 53 9 . m. i. — 333.10 h. m. A r «t 93 n -929.59 .... +8.976 . flamingo "id. lime N. P n . 0.07 . i=9 54.94 b. n. r. 99 58 II. 19 AT SANTIAGO DE CHILE. 237 NOVEMBER 7, 1S5O. e 9 6 Object. Chronometer time of transit. Mean of wire?. Micr. Planet— Star. Bar. Thermometers. A. B. C. .D. E. A a. A i. Air. Wet. s. 8. a. B. F. b. m. s. Rev. 8. Rev. Inches. • ° 1 2 3 4 5 Venus . . . N.P. W.C • • 94.9 47.5 • - • ' 4.7 97.5 23.0 48.0 12.6 22 31 37.71 22 35 0.75 22 37 58.04 22 38 21 .07 22 41 45.48 -M). 1 ±0.00 —9.651 ±0.00 —23.04 23.03 +9.651 9.651 28.063 Thpr. att. 61°. 5 Par. red. to 33° F. 27.975 60.8 53.4 Venus . . . N.P. W.C Venus . . . N.P. 31.0 54.5 18.5 44.8 7.5 32.0 • • 34.5 6 W.C 41.5 54.6 • • 31.5 34.5 22 49 7.95 — 9.651 32.47 9.6.'! 7 Venus . . . N.P. 18.2 31.5 . . . t 12.2 23 44 45.03 ±0.00 8 W.C 40.7 54.2 . . 20.6 34.0 S3 45 7.32 —9.601 22.24 9.601 / 9 Venus . . . N.P. 43.6 57.0 . . 37.5 22 47 10.48 ±0.00 10 W.C • • 19.9 • • 46.0 59.9 22 47 32.51 — 9.60J 22.03 9.601 11 19 Venus . . . N.P. W.C 57.0 18.5 10.5 31.8 . . . . 51.9 11.9 22 55 94.01 22 55 45.18 ±0.00 — 9.60J 21.17 9.601 13 14 Venus . . . N.P. W. C. . 41 3 54.6 15 ( • • • • 35.9 55.6 2258 8.11 22 £8 28.85 ±0.00 —9.64 20.74 9.64 15 Venus . . . N.P. 3.5 17.5 . . . . 58.0 23 1 30.78 ±0.00 16 W.C 94.5 38.0 51.5 • • 18.3 23 1 51.40 —9.65 20.68 9.65 17 18 19 90 21 22 93 94 95 27 a 38 39 30 31 33 33 Ml Venus . . . N.P. W. C. . . . 0.5 14.5 97.5 41.5 1.5 55.0 14.5 46.0 5.5 37.5 56.4 3.9 9.2 96.0 1.8 18.9 S3 4 97.80 23 4 47.85 23 9 18.77 33 9 38.75 23 11 52.08 93 12 11.34 33 16 10.41 23 16 99.54 23 18 17.58 93 1836.40 23 20 23.04 23 20 41.97 23 22 40.R-I 23 22 59.44 23 25 16.61 2325 34.77 23 27 33.44 23 27 51.07 ±0.00 —9.65 ±0.00 —9.65 ±0.00 —9.621 ±0.00 —9.641 ±0.00 —9.641 ±0.00 ±0.00 —9.68 ±0.00 —9.68 ±0.00 .4.M SO. 06 19.98 19.16 19.13 18.82 18.93 18.60 18.16 —17.63 9.65 9.65 '.'.i.-.'. 9.641 9.641 9.68 9.68 9.68 +9.68 H.OM Ther. att. 6i'.5 Bar. red. to 32» F. 27.909 57.0 51.3 Veniu . . . N.P. W. C 53.0 5.0 95.5 • • Venus . . . N.P. W. C 95.0 36.8 52.9 11.5 10.5 99.5 17.5 38.5 23.8 41.5 40.8 59.8 16.8 34.8 33.5 50.8 95.0 43.0 49.8 55.5 13.8 48.0 4.5 Venus . . . N.P. W. C. . 43.5 57.0 Venus . . . N.P. W. C. . 50.7 4.3 Venus . . . N.P. W. C 56.5 9.6 Venus . . . N.P. W. C 14.0 97.5 Venus . . . N.P. W. C 49.6 3.6 Venus . . . N.P. W. C 6.5 90.1 Remarks. At no time during the observations was the planet free from tremor; and the necessity of measuring it on the Axed wire (because of the small difference in A. K.) rendered the observations somewhat uncertain : the measures are, therefore, considered only fair. a Recorded 23. 8>. at wire C. 6 Recorded 51. 8f. at wire C. Results. Mean Seventeen transits h. m. s. 23 329.37 s. — 90.34 Rev. •f 9.647 h. m. Correction for chronometer at 23 3 . -335.32 Santiago fid. time N. P. = 3 8.02 h. in. s. 22 59 47.05 b. m. A pat 23 0 0.11 2M INFERIOR CONJUNCTION OF VBNU8, 1850-51, •0 \ 1 . M It BR 8, 1*30. j C •fCMMMM K-Mimr uf lr»n«i . \t. . .(,.,,,, Mirr Planet- •Star. Bar. I ,,. Mir .:, wun. i «*«. A. B. C. D. E. nicr. Ac. At. Air. Wet. i j Dj»w B>v 1 '!< ll' * , e KeT. 'II . •• ACT. W.C. 94.5 38.0 51.7 5.3 18.5 99 1851.60 —14.74 97.978 65.9 55.4 i V.ntt. . . . N.F. 33.9 40.5 0.0 13.5 97.0 9991 0.01 :. - +9 8.44 +11.53 Ther. att. 3 W.C 89.8 43.0 58.5 9.8 93.5 989356.53 14.67 n. ii 4 Venn. . . . N.P. 38.8 51.9 5.4 18.6 33.5 9998 6.38 3.13J 9 8.80 11.534 Bar. red. ID • r. 5 W. C. ... 90.5 33.8 47.0 0.5 14.3 99 30 47.93 14.464 Vrnu. . . . N P. 43.5 57.0 10.9 93.9 993856.88 9.844 9 9.66 11.03 7 W.C 51.0 4.5 17.8 31.0 44.6 33 35 17.78 14.37 8. VraiM . . . N.P. 0.8 14.5 97.8 41.0 54.6 S3 37 97.74 1 • 9 9.96 11.54 f W.C 40.5 54.3 7.5 91.0 34.5 33 40 7.56 14.98 10 VrWH . . . N.P. 51.5 5.0 18.5 31.8 45.6 33 43 18.48 9.68 3 10.93 11.60 ,, W.C. 11.8 95.9 38.5 59.0 5.5 33 44 38.60 14.331 19 Venn. . . . N.P. 99.5 38.5 49.8 3.0 16.8 33 46 49.73 9.63 9 11.19 11.604 13 W.C 34.8 48.1 1.4 14.8 98.5 9949 1.53 14.104 14 Venu. . . . N.P. 46.9 59.5 13.3 98.8 40.3 93 51 13.33 3.54 9 11.70 11.564 15 W. C. . . . . 5.5 18.0 39.3 46.0 59.5 33 53 33.46 14.10 16 Venn* . . . N.P. 17.7 30.7 44.5 57.5 11.5 33 55 44.38 9.44 9 11.92 11.66 17 W. C 7.5 90.8 34.4 47.5 1.4 33 58 31.33 14.05 18 Venoi . . . N.P. 90.0 33.4 46.8 0.5 14.0 93 0 46.94 9.99 9 19.63 11.76 19 W.C. 30.9 43.6 56.8 10.5 94.0 S3 9 57.03 13.98 SO Venu. . . . N.P. 43.9 56.5 10.1 93.5 37.1 33 5 10.08 9.98 9 13.06 11.70 91 W.C 51.1 4.5 17.6 31.9 44.6 93 7 17.80 13.944 t* VenM . . . N.P. 4.5 17.8 31.5 45.0 58.4 33 9 31.44 3.334 9 13.64 11.71 n W.C 10.6 M | 37.3 51.0 4.5 33 11 37.48 13.83 M Venu . . . N.P. 94.3 37.5 51.4 4.5 18.5 33 1351.94 9.07 9 13.76 11.76 95 W.C 43.0 56.5 9.5 93.1 38.8 33 16 9.78 13.794 » Venn . . . N.P. 57.3 10.8 94.0 37.5 51.5 93 18 94.33 9.00 9 14.44 11.794 97 W.C. 18.0 31.5 44.6 58.9 19.0 93 90 44.86 13.704 ta VMM . . . N.P. 31.7 46.5 59.7 13.3 97.0 939959.84 1.984 9 14.98 11.74 99 W. C 18.5 31.8 45.0 58.3 19.1 93 95 45.14 : \M » Vena* . . . N.P. 3S.5 47.1 0.5 14.0 97.5 9398 0.59 1.90 9 15.38 11.79 31 W.C 30.8 44.5 67.7 11.9 94.0 93 30 57.64 13.69 97.9(0 56.5 50.9 39 V«n« . . . N.P. 41.8 0.5 13.5 97.5 40.5 93 33 13.76 1.88 9 16.19 11.81 331 W. C . 50.6 13.0 . 38.8 93 35 19.97 13.61 Ther. att. 34 Venn. . . . N.P. 9.9 15.5 99.4 49.5 56.4 93 37 99.30 1.74* 9 16.33 11.864 Bar. red. to 33- F. 35 W.C 99.5 38.9 49.5 3.9 16.8 33 43 49.64 13.634 •J" .i«'-J 3t Venn . . . N.P. 40.0 53.5 6.5 90.3 34.0 3345 6.86 -1.73 +9 17.93 +11.894 H Remarks. A clear and tiTorabte night until Interrupted by cirrui cloudi about the planet. Meaturci all very lair. a Bomewhal blurred. t Cloud'. A'...//'.. . Eighteen uaniiu .... b. n. for chroootoeur at 93 3 . . h. • A f at 99 58 h. m. •. 93 9 40.55 m. i. — 331.61 m. •. -f 3 19.78 . . Santiago lid. time N. P. Kcv. + 11.683 . =3 47.79 h. m. i. 9359 3.94 0.19 AT SANTIAGO DE CHILE. NOVEMBER 9, 18SO. Cloudy. 239 NOVEMBER 1O, 185O. V Chronometer time of transit. Planet— Star. Thermometers. I M ' f Micr f Object. A. B. C. D. E. A 0. At Air. Wet. j i -. a. e. s. 8. h. m. s. Rev. m. s. Rev. Inches. O ° \ Venus . . . N.P. 40.7 54.1 7.6 20.8 34.5 22 32 7.54 — 7.07J 28.114 62.0 53.8 3 W. C 29.2 43.5 55.8 9.5 22 33 42.54 +0.38 —1 35.00 —7.45} Thcr. an. 61°. S Bar. red. to 32° F. 28.025 Remarks. Clouds prevented further observation. These measures were made by daylight, and are good. Results. Mean . . One transit .... b. i. Correction for chronometer at 22 33 b. m. t. 32 32 7.54 m. >. . —340.14 m. 8. — 1 35.00 Rev. — 7.455 Santiago sid. time N. P. b. in. " A f at 22 29 0.08 / n = 2 25.29 h. m. R. 22 28 27.40 NOVEMBER 11, 183O. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. A«. At Air. Wet. s. s. s. •. n. h. m. *. Rev. s. Rev. Inches. | • 1 3 3 4 S W. C Venus . . . N.P. 43.8 57.5 11.0 49.5 19.0 58.3 37.0 3.3 11.5 37.5 16.8 25.0 22 37 10.78 22 37 49.76 33 40 18.89 32 40 58.16 22 Si 36.66 —8.76 9.70 8.66} 9.601 9.02| +38.98 39.27 —0.94 0.94 38.033 Ther. alt. 64°. 0 Bar. red. to 32° F. 27.937 63.5 53.0 W. C Venn* . . . N.P. W. C 52.0 9.8 5.5 44.8 23.0 6 Venns . . . N.P. • • 3.5 17.3 30.5 44.0 22 53 17.11 9.84 40.45 0.81} 7 W. C 56.0 9.9 23.0 . . 22 54 23.02 9.00} 8 Venus . . . N P. 36.5 49.8 3.5 17.0 30.5 22 55 03.46 9.85 40.44 0.84} 9 w.c 5.0 18.9 31.7 . . . . 22 57 31 .79 9.02} 10 Venus . . . N.P. 59.5 13.0 28.4 39.6 22 58 12.91 9.81 41.12 0.78} 11 W.C 48.8 2.4 . . 23 3 2.29 8.95 12 Venus . . . N.P. • • 30.3 43.6 57.0 10.5 23 2 43.64 9.79 41.35 0.84 13 a W.C 40.3 53.6 7.2 23 5 7.09 9.10 14 Venns . . . N.P. 22.0 35.5 48.8 2.3 15.8 33 5 48.88 9.91 41.79 0.81 15 a W.C 31.3 34.6 47.8 15.0 23 7 47.98 9.16 16 Venus . . . N.H. 16.8 30.0 43.0 56.8 23 829.94 9.88 41.96 0.72 17 a W.C 16.0 39.5 43.3 f f 10.0 33 10 43.03 9.11 4 18 Venus . . . N.P. 58.3 11. H 35.2 38.5 53.3 23 11 25.22 9.80 42.19 0.69 19a W.C 54.0 7.5 21.0 33 13 20.89 9.06 90 Venns . . . N.P. 36.5 50.0 3.5 16.8 30.3 23 14 3.42 —9.78 +42.53 —0.72 240 INFERIOR CONJUNCTION OF VENUS, 1850-61, KOVEMIIKR 11. l»50-<-o«llnur.l. Cbromneter time of transit. Planet— Star. TbcrmoaKtm Mean of wire. Mior. Bar. Obj^-i. A. B. C. D. E. A*. A i. Air. Wei. ;, }• Inchen. • • 1.0 M.S 97.8 95.0 XI 18 97.90 -9.00| S8.049 95.6 V«M» . . . N.P. . . 57.« 10.5 31.0 37.5 93 17 10.99 9.71 449.69 -«.70| Thor. Ml. w. c 40.5 53.8 7.7 t f 34.9 93 19 7.38 8.98 6P.S M Vcnu. . . . N P. £3.4 iS.8 59.3 3.5 17.S 93 1950.94 9.65| 43.86 O.B7J n«r. red r .1 •• w.r SI .9 34.8 43.0 . . 15.9 91 SI 48.08 8.90 91 Venui . . . N.P. 4.9 18.0 31.9 44.5 58.1 339931.90 9.55 43.19 0.65 97. we 4.0 18.0 31.5 . . 58.5 939431.33 8.85 • Venn* . . . N.P. 48.0 1.5 15.0 £8.9 41.8 33 23 14.90 9.50 0.57 0.65 V 47.9 1.4 15.0 f 41.8 14.85 8.S81 30 Venn. . . . N.P. 31.5 43.0 48.5 11.8 95.4 23 37 58.44 9.44 43.59 0.5.11 31 W.C 93.0 38.5 90.0 m 17.0 93 99 48.95 8.79} \>nui . . . N P. 6.8 90.0 93.5 470 0.5 933033.53 9.37J 43.61 0.98 33 \v. <• 9.9 38.1 t f 3.0 9333 36.03 8.73t V«M . . . N.P. 53.3 6.5 SO.O 33.7 47.0 333390.08 9.3SJ 44.05 0.69 3i W. C 9.6 16.3 99.5 . t 87.0 93 35 99.68 8.7JI 38 VenM . . . N.P. 47.9 0.5 14.0 97.5 41.0 23 36 14.04 9.36| 44.36 0.53 37 W. C 58.0 5.5 19.1 . t 45.5 33 38 18.85 8.78 38 Vena* . . . N.P. 38.5 • • 3.5 17.0 30.5 33 39 3.51 0.30J 44.66 0.531 jg W.C 9S.O 38.5 19.0 3349 51. "Jo 8.711 40 Vein* ... N.P. 10.0 33.5 37.0 50.4 3.5 33 43 36.88 9.221 44.93 0.51 41 W.C 17.5 31.9 44.6 t t t t S3 45 44.49 8.70 •1 Vena. . . . N.P. 3.0 16.5 99.5 43.9 56.8 33 46 29.80 9.16 45.31 0.46 43 W.C 4.1 17.5 31.0 f f 59.5 93 4831.35 8.66 44 Vnni . . . N.P. 49.5 3.9 17.0 SO.O 43.5 33 49 16.64 9.19J 45.39 0.531 49 W.C 54.3 7.5 91.0 93 51 20.99 8.63 •1 Veniu . . . N.P. 39.9 53.3 7.0 90.5 34.0 93 59 6.98 9.13 45.99 0.50 47 W.C 14. 5 98.1 49.0 f f 8.5 9354 41.60 8.66 VenM. . . N.P. 0.8 14.0 97.9 41.0 94.8 935597.89 9.19 46.03 0.53 49 W.C 53.5 7.9 90.8 . 93 57 90.56 8.66 Ml Vrnn. . . . N.P. 41.0 53.5 7.0 £0.5 34.0 9358 7.90 9.11 46.64 0.45 51 W.C 3».0 S9.5 6.0 0 0 5.89 8.731 •1 Tan . . . N.P. 95.5 59.5 6.0 19.5 0 0 59.50 9.15 46.61 0.411 93 W.C 18.5 33.3 45.5 t t t 0 9 45.49 8.81 M Venoi . . . N.P. 5.5 18.5 45.5 99.1 0 3 39.16 9.96 46.67 0.45 M W. C 95.9 30.0 89.0 . . 0 5 59.19 8.81 Vena. . . . N.P. 19.0 95.5 39.0 £9.9 6.0 0 6 38.94 9.96J 46.8* 0.47J M W.C 54.5 8.0 91.5 t p r f 0 991.39 8.99 - Vnu . . . N.P. 41.5 51.5 9.0 93.3 36.0 0 10 8.66 -9.33 +47.97 -0.41 Remarks. Bjr f«r ihe flnex nlflil ud mail MtUfactory meuure* durinf the §crii-«. Both ohjccu were cilremcly well defined and their motlnni iteady. The two MMUum were Bade by dnj lijhi, and there were alio four meuure. made under like clrcunutancei with a followlnj itar i but they are not • Both fine obtorvatkxu. t Tremulout. r Extremely trrmuloin. Mean Twenty-nine transits h. m. Correction for chronometer at 23 28 . AT SANTIAGO DE CHILE. NOVEMBER 11, 185O— Continued. Results. 241 h. m. «. 23 27 45.74 m. s. — 3 42.85 m. 8. + 43.56 Rev. — 0.633 Santiago sid. time \. P. = 0 12.33 h. m. s. 23 94 2.89 h. m. Apat2324 0.01 NOVEMBER lit, 185O. Cloudy. NOVEMBER 13, 1830. j Chronometer time of transit. \1 i -» Planet— Star. i. 'hermometers. Object. A. B. C. D. E. ilean of wires. Micr. A a. A I. usr. Air. Wet. 1 h. m. «. Rev. in. .. Rev. Inrhe«. I • la W. C 6.5 90.2 33.4 47.5 22 39 33.59 —13.36 28.062 62.5 52.3 St Venu. . . . 1J.P. • • • • 47.5 1.0 14.5 22 40 47.60 9.66 + 1 14.01 +10.70 I'hir. ntt. 3a W. C 39.6 46.9 59.5 13.0 28.5 -22 42 59.56 14.U94 63°. 4 4 Venu. . . . N.P. 0.6 14.0 97.5 41.0 21 44 14.07 3.324 1 14.51 10.77 B;ir. red. to 32° F. 27.969 5 W. C 33.8 47.9 0.7 14.0 27.5 22 51 0.64 13.47 a Venu. . . . N.P. • • 9.6 15.8 99.0 42.5 22 52 15.77 9.63 1 15.13 10 81 7e W. C 32.0 45.5 59.0 19.2 95.8 92 54 58.90 13.51 8 Vena. . . . N.P. 47.5 1.9 15.0 98.9 41.5 22 56 14.68 2.624 1 15.78 10.884 I W. C 51.0 4.5 17.8 g 44.5 23 0 17.78 13.79 10 Venu. . . . N.P. 7.0 20.5 34.0 47.3 1.0 23 1 33.96 2.90 1 18.18 10.89 H W. C 34.8 48.0 1.9 . 98.9 23 5 1.37 13.70 19 Venu. . . . N.P. 51.5 4.9 17.5 31.0 44.3 23 6 17.70 9.76 1 16.33 10.94 13 d W. C 50.0 3.9 16.6 43.5 23 10 16.68 14 Venu. . . . N P. 6.5 909 33.5 47.0 0.5 23 11 33.54 1.554 1 16.88 11.11 15 W. C 7.5 90.8 34.9 47.8 1.0 23 16 34.22 12.58 16 Venu. . . . N.P. 94.6 38.9 51.6 4 8 18.5 23 17 51.54 1.42 1 17. fi 11.16 17 W. C 49.4 9.6 16.0 99.5 43.0 23 21 16.10 15.544 18 Venus . . . N.P. 6.5 20.0 33.6 47.0 0.5 23 22 33.52 4.504 1 17.42 11.04 19 W. C 34.0 47.6 1.0 14.9 27.6 23 25 0.88 15.714 90 Venu. . . . N.P. 59.0 • • 18.8 32.3 45.8 23 96 18.87 4.56 1 17.99 11.154 91 W. C 59.3 5.8 19 9 32.5 46.0 23 28 19.16 15.67 99 Venu« . . . N.P. 10.5 24.0 37.5 51.0 4.0 23 29 37.40 4.15 1 18.24 11.92 93 W. C 7.6 21.2 34.5 48.0 1.5 23 31 34.56 15.684 94 Venu. ... N.P 26.3 39.5 53.1 6.5 20.0 23 32 53.06 4.45 1 18.50 11.234 95 W. C 17.5 30.6 44.0 57.3 11.0 23 85 44.08 15.644 98 ' Venu. ... N.P 36.1 49.5 2.8 16.0 29.5 23 37 2.78 4.34 1 18.70 11.304 97 W. C 9.2 99 3 35.8 49.3 2.5 23 39 35.82 15.53 98 Venu. ... N.P 97.6 41.0 55.0 8.2 21.5 23 40 54.66 4.28 1 18.84 11.95 H W. C 47.0 0.5 13.5 97.0 23 43 0.29 15.64 30 Venu. ... N.P 52.5 6.0 19.5 39.8 46.3 23 44 19.42 4.31 1 19.13 11.33 31 W. C 12.5 25.7 39.3 52.5 6.2 23 46 39.24 15.59 39 Venu. ... N.P 39.0 45.9 58.8 19.0 95.5 23 47 59.70 4.284 1 20.00 11.304 33 W. C 43.4 56.6 10.0 23,5 37,1 23 50 10.12 15.614 34 Venu. .VI- 3.2 16.5 30.0 43.5 56.8 93 51 30.00 —4.264 +1 19.88 +11.38 31 1242 INFERIOR CONJUNCTION OF VENUS, 1850-61, i C trr lime of truxi I'lanel- -8tv. Thennon I M • • u Micr Bar. Object. A. B. C. D. E. A.. Ai. Air. 1 Rev Rev. Inchen. • • > as W. I 11.0 05.5 38.5 59.5 6.0 S3 53 38. PO — 15.661 55.5 48.1 as Venn. . . w.i 45.5 59.0 19.9 95.5 3354 58.88 4.99 +1 19.98 +11.44J Ther. (It. 37 w i- 53.0 6.5 90.0 33.5 47.0 33 57 90.W 15.66 6J-.0 X Venu. . . . N.P. 13.5 97.0 40.5 53.6 7.9 33 5840.36 4.SOJ 1 90.36 11.451 Bar. red. to ar F. 27.977 3» W. C 30.5 44.3 57.8 11.0 94.7 0 0 57.66 15.68 40 VMM . . . N P. 51.5 5.0 18.5 31.8 45.5 0 9 18.46 4.31 1 90.80 11.47 41 W. C 43.7 57.3 10.5 94.0 37.5 0 5 10.60 15.77 *U Venn. . . . N.P. 5.0 IS. 5 31.5 45.0 58.6 0 631.72 4.33 1 91.19 11.44 43 Mf.C 44.8 56.9 11.5 95.0 38.6 0 10 11.6-2 16.14 * 44 Venu. . . . N.P. 6.8 19.5 33.0 46.5 0.0 0 11 33.04 4.59 1 31.49 11.69 44 \V. C 36.a 49.6 3.4 16.6 30.9 0 14 3.90 16.29 46 V. nu< . . . N.P. 57.« 11.0 94.5 38.0 51.5 0 15 94.59 4.64 1 91.33 11.58 47 W. C 18.0 31.5 45.0 58.4 19.0 0 17 44.16 16.99 48 Venua . . . N.P. 40.9 53.5 7.0 90.5 33.6 0 19 6.98 — 4.79 +1 91.98 +11.57 » Remarks. Nljht clear, though the planet (§een with the diminUhcd aperture) w«a never either iharply defined or Heady, and the measures can only b« «on- aidered fair. a TbeM two observation* were made by daylight, though tbe lamp* were lighted. t Recorded 37.5». and 51.0.. at wirea C and D, respectively. c Recorded 37 0». at wire A. •i Tremuloui. Mean . . . Twenty-four tranaiti . h. n'. Correction for chronometer at 93 33 . Results. h. m. •. 23 33 1.34 n. ». — 3 4i.74 m. M. + 1 18.83 . Santiago lid. time N. P. E<-v. I : - : h. m. a. 23 29 15.60 h. m. A fU 93 98 0.15 NOVEMBER 14, 18»O. : , Ohjerl. Chronometer time of trandt. Mi. r. Planet— Star. Bar. Thennometan. A. 1 C. D. E. A a. A A Air. UYt It a. a. a. a. h. m. a. Hev. a. Rev. Inchm. • • V«o. . . . N.P. W. C 98.0 41.4 31.5 38.4 98.6 11.5 1.0 ss.o 45.0 59.0 49.0 95.0 14.5 8.5 58.4 5.4 &S.3 38.4 98.0 19.0 8.8 41.9 99 58 54.99 99 59 45.09 93 1 51.89 93 9 41.1*7 93 5 94.99 93 6 (4.47 — 6.94 12.141 6.49 19.30 -19.931 —50.10 50.08 -49.55 +5.901 5.88 +5.B5 27.913 Ther. an. 6W.5 Bar. red. to 34- F. i!7.839 71.7 57.8 V*»H : . . N.P. W. C. . . 91.0 Vm» . . . N.P. W. C. . 58.0 AT SANTIAGO DE CHILE. 243 .\OVEMBER 14, 1850-Continned. No. for reference. Object. Chronometer time of transit. Mean of wires. Hicr. Planet— Star. Bar. Thermometers. A. B. C. D. E. - A a. AS. Air. Wet. 8. s. s. 8. 8. h. m. s. Rev. 8. Rev. Inches. • a 7 8 1 10 11 12 13 a 14 15 16 17 18 19 20 81 99 93 34 25 38 97 98 9* 30 31 39 33* 34 35 38 • 38 • 40 41 49 43 ii H 47 48 48 c SO tic 59 Venus . . . N.P. W.C 3.0 16.5 6.0 2.4 51.3 9.0 51.0 57.0 45.7 16.0 4.5 28.5 17.3 21.5 9.5 14.5 9.5 8.0 55.7 58.5 46.3 59.7 40.0 25.5 13.3 93.8 10.5 18.0 4.5 33.0 18.9 30.3 16.9 92.4 8.1 91.9 7.0 18.1 3.5 0.5 45.5 3.5 48.5 54.9 39.0 35.0 19.9 30.1 19.5 15.8 5.0 15.5 4.5 10.5 59.9 39 4 J7.9 49.9 30.5 35.1 23.0 27.8 15.8 21.3 9.0 19.5 59.5 6.0 53.5 38.5 95.7 37.5 24.0 31.5 18.9 45.4 31.7 43.6 99.8 36.0 21.5 34.6 90.5 31.7 13.8 59.0 17.0 2.0 7.6 53.5 48.4 33.0 43.2 3J.7 99.1 18.1 98.8 17.7 93.7 12.5 49.8 31.9 55.5 43.7 48.4 36.5 41.3 99.0 34.8 99.5 95.8 13.1 19.5 6.5 53.3 39.2 90.5 37.5 44.8 31.5 58.8 44.8 57.0 43.0 49.4 35.0 48.3 34.0 45.1 30.4 27.3 19.5 30.5 15.5 21.3 6.0 1.8 16.3 46.2 31.8 31.0- 96.1 44.7 57.4 50.9 43.6 36.0 36.7 90.2 52.8 51.0 45.0 58.5 56.5 48.8 47.5 44.0 96.9 99.0 19.5 0.0 93 8 29.89 23 9 19.40 93 11 15.72 93 12 4.85 23 14 15.39 23 15 4.35 93 17 10.37 93 17 59.17 23 20 29.37 23 21 17.87 23 23 49.04 23 24 30.53 23 26 34.97 23 27 23.10 939927.84 23 30 15.77 23 32 21.34 33 33 9.10 23 35 12.27 93 35 59.70 9338 5.99 93 38 53.35 23 41 38.64 93 43 25.80 23 44 37.27 23 45 24.05 23 47 31.59 93 48 18.10 23 50 45.37 33 51 31.60 23 53 43.54 23 54 99.67 23 56 35.69 23 57 21.65 23 M 34.59 0 0 20.55 0 9 31.54 0 3 17.03 0 6 13.72 0 6 59.10 0 9 16.94 0 10 2.05 0 11 7.72 0 11 52.55 0 14 48.37 0 15 33.92 — 6.241 12.201 6.21 12.131 6.15} 12.13 6.071 12.131 5.97 11.961 5.85 11.91 5.79 11.831 5.73 11.89 5.65 11.82 5.60 11.78 5.53, 11.73 5.40 11.64, 5.34 11.691 5.261 11.56 5.19 11.59 5.18 11.53J 5.19 11.511 5.061 11.44 5.07 11.531 5.08 11.591 5.07 11.62 5.01 11.68 5.10 —11.74 -^19.51 49.13 48.96 4^80 48.50 48.43 48.13 47.93 47.76 47.43 47.36 47.16 46.78 46.58 46.23 46.13 45.76 45.96 45.49 45.38 45.11 44.83 -44.55 +5.96 5.921 5.971 6.08 5.991 6.06 6.071 6.17 6.17 6.18 6.201 6.941 6.351 6.291 6.33 6.351 6.391 6.371 6.46} 6.511 6 55 6.87 +6.64 27.943 Ther. att. 69° .5 Bar. red. to 3S° F. 27.832 27.958 Ther. att. 67°. 8 Bar. red. to 32" F. 27.589 72.7 63.7 57.8 56.1 Venus . . . N.P. we... 48.8 Venus . . . N.P. W. C 48.5 Vena. . . . N.P. W. C. 43.5 Venus . . . N.P. W. C 9.5 Venus . . . N.P. W. C. . • 15.3 Venus . . . N.P. W. C 8.1 Venus . . . N.P. W. C. . 1.0 Venus . . . N.P. W. C 54.5 Venus . . . N.P. . W. C 45.5 Venus . . . N.P. w. c 39.0 Venus . . . N.P. W. C. . . . 11.5 Venus . . . N.P. W. 0 10.5 Venus . . . N.P. W. C. . . 5.0 Venus . . . N.P. W. C 18.5 Venus . . . N.P. W. C 16.5 Venus . . . N.P. W. C 9.0 Venus . . . N.P. W. C 7.5 Venus . . . N.P. W. C Venus . . . N.P. W. C 4.5 46.5 Venus . . . N.P. W. C. . . . 50.0 Venus . . . N.P. W. C 41.0 Venus . . . N.P. W. C. . . 91.5 244 INFERIOR CONJUNCTION OF VENUS, 1850-61, NOVEMBER 14, 1X50— foullnurd. j A tnjict ChronoHetrr time of UMMtt. Mean of wire* Mkr. Planet— 8ur. B.r. Thermometer* A. B. c. 0. 1 A«. At. Air. W«. Her. >. Rev. Inch,.. • • at M VMM . . . N.r. w.c 10.8 M.I e.i 37.8 •-'.'. 0 Sl.O 35.3 «.l 0 17 37.28 0 18 2» 07 - 5.16 -11.88 —44.48 +8.79 97.858 83.7 M.I Remarks. An ntrrmelj flne ni«ht throujhoui, both nbjocti being drflned wiib precision, and moving >teidilr. Eirepl tbote marked " tremuloui" ind " blurred." it would not be pontble lor me lo mike belief meuures, when there ii to little difference In the tlme« of tranili, ind to Urge in in|l* tknafb which to more the micrometer icrew. a Recorded 38. 5§. it wire A. ft Tremuloui. e Blurred. Results. , . Twf nlv-ieven tnuuiu h. m. Correction for chronometer it S3 38 b. m. i. 33 38 39.82 m. i. — 3 48.88 — 47.87 Rev. + 6.238 Santiago ild. time N. P. = 2 1.58 h. m. «. S3 34 40.74 h. m. A* M3335 0.09 NOVEMBER IS, 185O. i - Chronometer time of transit. Mean of wires ... PI* net —Stir. T!I* "in-mi* t *'f «• A. B. C. D. E. A «. At. Air. UVl. - - l. i. i. b. m. i. Rev. m. s. Rev. Inches. • • i \ . - N P 18.3 31.8 45.1 58.5 13.0 2* 4» 43.14 -3.56 D :-: 69.3 68.8 9 W.C 0.0 14.0 97.3 40.6 54.0 99 51 97.18 9.711 -1 49.04 -0.841 4 a Venui . . . N.P. W. C Vrnut . . . N.r. 39.9 91.4 99.5 69.5 34.6 43.0 6.0 48.1 68.5 19.4 1.5 9.7 39.8 15.9 93.3 29 53 5.98 9954 48.16 995868.40 3.41 9.60 3.34 1 42.18 0.81 Ther. in. 69*.4 Bar red. to 39* F. 97.877 • W.C 18.0 96.6 38.6 59.9 3.8 99 5838.88 9.49 1 43.46 0.85 7 8 •l U 11 11 11 Veou . . . N.r. W.C 9*.3 6.5 17.5 9.0 90.1 31.0 15.5 37.5 91.1 11.5 33.6 44.5 98.6 61.0 38.5 95.0 2.5 46.8 57.5 49.0 4.9 49.0 38.0 18.3 0.4 11.6 65.8 17.8 9.3 81.8 93 15 49.94 93 17 33.46 33 90 44.40 33 33 90.78 93 94 50.99 93 36 33.50 939894.88 5.611 4.541 5.811 4.511 5.451 4.351 5.47 1 44.39 1 44.38 1 44.58 1.07 1.10 1.10 Ve«B. . . N.P. W.C. Vrnu. . . . N.P. W. C 8.6 68.0 VMM . . . N.P. M W.C 48.8 56.9 • • 99.6 36.5 3330 9.69 4.98 1 44.66 1.19 U M IT U VMM . . . N.P. W. C. . . . . 39.0 17.9 13.5 48.7 45.5 30.5 97.0 19.0 59.0 44.1 40.5 95.5 19.5 57.5 53.6 38.8 95.8 11.0 7.0 69.5 33 31 58.98 333344.08 93 3540.39 93 37 35.50 5.43 5.44 4.131 1 45.10 1 45.18 1.18 1.301 V*MM . . . N.P. W.C It • 1 V«WH . . . N P W. C 64.6 40.0 53.9 91.5 6.5 34.3 90.0 48.0 334 93 4031.39 33 49 8.82 5.331 4.031 1 45.40 1.30 M V-pa. . . . N.P. w.c. . • . . . 43.0 11.0 66.3 94.9 10.1 37.5 93.5 51.3 37.0 93 44 94.30 93 48 10.03 4.96 -3.90 -1 45.79 -1.38 AT SANTIAGO DE CHILE. 245 \OVK.nHEIS 15, 1850— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. &l. Air. Wet. s. B. a. s. -. h. m. s. Rev. m. s. Rev. Inches. • « 33 34 Venus . . . N.P. 45.0 31.0 58.3 44.3 11.5 57.6 35.0 11.0 33 50 58.32 23 52 44.28 —4.17 2.72 —1 46.05 —1.45 28.006 63.0 56.5 W. C 17.5 23c 36 27 Venus . . N.P. W. C V«nu« . . . N.P. 11.5 58.0 " 11.6 35.0 11.4 35.3 38.5 35.0 39.0 53.0 38.5 53.0 5.5 53.0 5.5 2354 38.50 33 56 24.98 3358 38.73 4.081 3.68 4.09^ 1 46.48 1.40J Ther. att. 67°. 3 Bar. red. to 32' F. 27.901 98 W. C 58.5 13.0 35.8 39.0 52.5 0 035.56 2.571 1 46.84 1.52 29 Venus . . . N.P. 45.0 58.3 11.8 85.0 38.5 0 2 11.72 4.12 30 W. C 32.0 45.5 58.8 13.3 35.5 0 3 58.80 — 3.56i I —1 47.08 —1.554 1 / Remarks. Many cirri and much haie during the evening until wholly interrupted by clouds; but when the star was discernible, both objects were exceedingly sharp and the measures are very good. The first three measures were made by daylight. a Recorded 45. Of. at wire C. A Tremulous. c R< corded 14.5s. at wire A. Diameter of Venus from a mean of five meamres at 12*. 30m. ud. time, 2.431 rev. Corrected diameter, 45" . 18. Remlt». Mean of the first three transit* . . . Mean of the last eleven transits . . . h. m. Correction for chronometer at 22 53 . Correction for chronometer at 23 39 . h. in. A f at 28 50 b. m. s. 22 53 15.84 23 39 3.45 -3 52.39 -3 52.39 m. s. — 1 42.23 — 1 45.47 Rev. — 0.835 — 1.396 = 0 16.27 = 0 25.26 0.01 h. m. s. Santiago «id. time N. P 23 49 23.55 Santiago sid. time N. P 333511.06 h. m. " A f> at 23 36 0.02 NOVEMBER 16, 185O. 1 i la Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. • Bar. Thermometers. A. B. C. 0. E. " A A Air. Wet. •. s. a. s. s. h. m. s. Rev. m. a. Rev. Inches. 0 • Venus . . . N.P. 39.3 53.3 6.0 19.4 33.8 23 53 6.14 -4.73i 27.954 71.3 57.4 24 W. C 9.0 32.5 36.0 49.0 2.8 22 55 35.86 +3.36( —3 29- 73 —8.00 3a 4 5 a Veniw . . . N.P. W. C Venun . . . N P. 13.8 43.5 41.5 97.5 57.0 55.0 •40.7 10.1 8.5 54.1 33.5 21.7 7.5 37.5 35.1 22 57 40.72 23 0 10.32 23 3 8.36 —4.30 +3.80 —3.35 3 29.60 8.00 Ther. att. 69°. 8 Bar. red. to 32° F. 37.841 « W. C 11.0 34.5 37.8 50.8 4.5 33 4 37.72 +4.601 | 2 29.38 ', 7.951 7 Venui . . . N.P. 27.5 41.0 54.5 7.8 21.1 23 9 54.38 —3.51 8 W. C 56.3 9.8 23. U 36.5 50.0 23 12 23.12 +4.311 2 28.74 7.8:, 9 Venus . . . N.P. 8.2 21.8 35.2 48.3 1.8 23 14 35.06 —3.75 10 W. C 36.5 00.2 3.0 16.5 30.3 23 17 3.28 +4.05 228.22 7.80 11 Venus . . . N.P. 50.0 3.5 16.5 30.0 43.5 23 19 16 70 -354 19 W. C 18.0 31.5 44.8 58.0 11.5 23 21 44.76 +4.15 -» 28.08 -7.69 244 INFERIOR CONJUNCTION OF VENUS, 1860-51, N..\ KMHKR IB, 1850-Coulllliiril. 4 CbrwcaMWr lime of iraadt. Planet— Star. !.. BMM '• M \ OHM MWMOfwilW. Micr. Bar. A. B. C. 0. 1 A.. A a. Air. WM. k t ll tn i B*v Re» [ ••• i.' . . . * II* IQ> m* •fcCT. U \>nu. . . . N.P. 95.5 40.5 9.8 16.1 99.5 9394 9.70 -4.731 97.954 ' 71.3 57.4 14 W. C. 3.8 17.1 30.5 44.0 57.3 U 96 30 50 . —9 97.80 —7.70 • *** ^w **v,tfll — ***wi Thrr. att. 15 Ve»w . . . N.P. 95.6 39.9 59.5 5.8 19.5 939859.53 — 4.584 69-.S 18 W. C 53.3 8.8 • 33.5 46.8 93 31 90.08 +3.06J 997.58 7.63 Bar. ml. t • "-• r 37.811 17 Vewia . . . NJ>. 57.9 10.9 93.9 37.3 50.8 33 3394.03 -4.431 18 XV c S4.5 3* 0 51.3 4.5 17.9 93 35 51.94 •4-3.101 1 BTJi 7.54 It V«BM . . . N P. 40.5 54.0 7.3 30.5 34.3 93 38 7.33 -p*.. ••*> —4.33 90 7.5 34.9 47.5 1.0 33 40 34.91 +3.19 9 38.89 7.59 Venn. . . . N.P. 6.5 90.4 33.6 47.0 0.5 33 4933.60 -|-»r. —4.34 - W. C 33.5 47.1 0.8 14.0 97.0 9345 0.48 +3.93 396.88 7.46J . \Vnin . . . N.P. 33.5 47.0 0.5 13.5 97.0 93 47 0.30 —4.19 M W. C 59.9 13.5 96.6 40.0 53.5 93 49 36.70 +3.30 996.40 7.43 99 Venua . . . N.P. I8.S 33.0 45.3 58.5 19.0 93 51 45.98 —4.031 H W. C 44.5 58.0 11.5 94.6 38.0 33 54 11.33 +3.33J 996.08 7.35 17 \>nu« . . . N.P. 55.5 8.8 99.4 35.5 49.1 33 56 33.96 —3.91 98 W. C 31.9 34.8 48.0 1.9 14.5 33 58 47.94 +3. 384 9 25.68 7.974. Veom . . . N.P. 99.8 36.3 48.8 3.9 16.5 0 0 49.73 -pw.wn —3.83 *m m X W. C 48.9 1.8 15.0 98.3 41.8 0 3 15.02 +3.43 995.30 7.95 31 V«y« . . . K.P. 51.5 5.9 18.5 ai.o 45.3 0 5 18.50 —3.76 37.969 66.0 5J.8 .-. W. C. . . . 16.8 30.5 43.8 57.0 10.5 0 7 43.79 +3.43 3 35.93 7.18 31 Veaua . . . N.P. 90.5 34.1 47.5 0.7 14.3 0 9 47.43 —3.76 Th'r. att 68VO 34 W.C 45.5 59.0 19.9 95.7 39.0 0 19 19.98 +3.344 9 94.86 7.101 Bar. red. -j-w.v-if to W F. IB Ye... . . . N.P. 45.1 58.5 19.0 15.4 39.0 0 14 13.00 -3.79 37.863 38 W. C 10.* 93.1 38.5 49.5 3.4 0 16 38.50 +3.30 —9 31.80 —7.09 Remarks. Fair nielli and good mraiure*. ret by dajrlif hi. t Somewhat clo*e. c Tremulous. Mran . . . Elfhlrrn Iraiulli . h. m. Uomcuon for clironwarier at 93 35 h. m. •. . 333458.19 m. i. 917.11 — 3 57.76 Rer. — 7.544 . time N. P. = 397.03 h. in. •. 33 30 58.43 h. IN. 4 » at 33 33 . 0.10 AT SANTIAGO DE CHILE. 247 NOVEMBER 17, 185O. No. lor reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. I). E. A a. A (i. Air. Wet. 8. 8. 8. 8. s. h. in. s. Rev. m. 8. Rev. Incbea. « a la 36 3a 4 5a 6 7a 8 9c 10 lid 13 II 14 II 1C 17 It 19 90 Venus . . . N.P. W. C. ... 18.5 32.0 36.0 14.5 18.5 46.0 50.0 30.8 24.5 5.0 7.4 10.5 13.6 17.5 30.3 53.9 54.5 51 .« 53.7 11.3 13.1 45.4 49.3 38.0 33.0 59.4 3.3 34.0 38.0 18.5 31.3 34.3 27.0 31.0 31.0 7.5 5.0 7.0 94.5 98.8 58.6 2.5 41.4 45.3 13.5 16.5 47.4 51.0 31.8 34.3 37.5 40.5 44.4 47.0 18.5 91.0 f 18.5 30 5 38.0 40.0 13.3 16.4 54.8 58.8 36.0 29.8 1.0 4.5 45.1 48.0 51.0 53.7 57.8 0.5 33.3 33.0 34.0 51.4 53.5 33 57 45.34 23 58 49.36 33 1.27.98 23 2 31.96 23 4 59.28 33 6 3.18 33 8 34.14 93 9 37.81 23 16 18.38 33 17 21.03 33 30 34.04 33 21 27.01 33 34 31.04 33 35 33.73 33 28 5.35 33 29 7.67 23 33 5.06 3334 7.11 23 3G 24.62 33 37 36.66 — 3.83} 10.83 3.52} 10.65 3.37 10.58 3.24} 10.54} 4.73} 12.34} 4.83 12.22} 4.91 12.41 4.85 13.33} 4.61 13.23 4.58} -12.38 —1 4.02 1 3.98 1 3.90 1 3.67 / 1 2.65 1 9.97 1 3.69 1 9.49 1 2.05 —1 9.04 +6.99} 7.12} 7.31 7.30 7.51 7.40} 7.50 7.48} 7.59 +7.79} 28.064 Ther. att. 69°. 0 Bar. red. to 32° F. 27.954 69.6 56.0 Venus . . . N.P. W.C 1.3 Venus . . . N.P. W. C 33.5 Venus . . . N.P. W. C 7.5 Venus . . . N.P. W. C 51.5 Venus . . . N.P. W. C 57.0 Venus . . . N.P. W. C. 4.5 Venus . . . N.P. W.C Venus . . . N.P. W. C 38.5 38.3 Venus . . . N.P. W. C 58.0 Remarks. Owing to the tremor, bad definition, and blurred appearance of both objects all the evening, the observations have been extremely unsatisfactory, a Observations by daylight. e Lamps just trimmed. b Recorded 38. 0«. at wire B. i Very tremulous. Results. Mean . . . Ten transits . . . h. m. Correction for chronometer at 23 17 . h. m. •. 33 17 9.51 m. s. . —359.13 m. s. — 1 3.04 Rev + 7.391 Santiago sid. time N. P. . =2 24.05 h. m. 8. 23 13 10. 49 h. m. A < at 33 14 0.03 NOVEMBER 18, 185O. i Chronometer time of tiansit. Planet— Star. Thermometers. i Object. A. B. C. D. E. A«. Aft Air. Wet. $ 0 8. s. 8. *. 8. h. m. s. Rev. m. s. Rev. Inches. 0 • 1 Venus . . . N.P. 33.5 36.6 50.3 3.5 17.0 23 050.16 —3.97 38.035 73.0 54.0 9 W. C 23.5 37.2 50.5 4.0 17.5 23 2 50.54 11.69 —3 0.38 +8.79 Thor. att. 3 Ven N.P. 38.6 42.2 55.5 8.7 33.5 33 4 55.50 3.88} 71°. 7 4 W.C 39.0 42.5 55.5 9.2 33.6 23 6 55.76 11.61 3 0.36 8.72} Bar. red. to32°F. 27.908 5 Venus . . . N.P. 34.3 37.5 51.0 4.4 17.6 33 8 50.94 3.74 6 W.C 34.5 37.5 51.0 4.5 18.0 33 10 51.10 —11.45} —9 0.16 +8.71} 248 INFERIOR CONJUNCTION OF VKNUS, 1850-61, NOVEHBRH 18. 180O— Canllnnrd. j < Otjwt. ChroMaeirr lime at umnwl. MM* of win*. Mlcr. !•: M Sur. Bar. j | ,-f || , , 1, r. A. (. C. 0. 1 A.. A i. Air. •. •. *. •i >. h. m. *. Be*. m. «. Rev. llK-hM. • • a II M lie • tu 14 15 \ -nil. . . . N.P. W. f 40.1 40.4 39.0 38.6 41 .« 41.0 84.6 83.5 83.5 M.S S3.5 59.4 59.0 55.0 54.9 38.0 37.0 3T..8 7.0 7.0 «.o 5.3 85 7.8 51.4 50.5 50.4 90.3 90.3 19.9 18.5 91.8 90.8 4.6 3.5 3.5 33.6 33.5 38.6 39.0 35.3 34.5 18.0 17.0 17.0 93 13 6.90 93 15 6.94 93 90 5.84 9399 5.98 9394 8.44 9396 7.66 93 98 51.30 9330 50.30 23 32 50.84 -9.301 11.18* 3.97 12.33 3.46 19.47 3.68 18.71 4.51 -9 0.04 1 59.44 i H • 1 59.00 +8.88 9.06 9.01 9.09 turn Ther. mi 7T. 7 B.ir. red. lo 32' P. 27.908 73.0 M.O VMM . . . N.P. w.c. Venu. . . . N.P. W. C Vmu . . . N.P. W.C VMM . . . N.P. M W.C S9.5 • • 49.0 9.5 15.8 33 34 49.10 13.61) 1 58.86 9.10) 17 18 It 1 •1 • • Vm« . . . N.P. W. C. . . 37.0 35.6 58.8 56.8 10.0 8.5 •.0 50.5 49.0 11.5 10. 0 93.5 91.6 SB. 5 3.9 9.5 25.0 93.5 37.0 35.9 36.1 17.9 15.7 38.5 36.8 50.4 48.5 49.9 30.6 99.3 51.8 50.4 3.6 •2.0 9.5 8337 3.84 93 39 9.43 83 41 85.00 23 43 93.50 •23 45 .16.90 23 47 35.16 93 49 35.86 4.49 13.61 4.32 13.69 4.19 13.47 4.03J 1 58.58 1 58.50 i >.-'•; 9.19 9.30 9.98 VMM . . . N.P. W.C V«m« . . . N.P. W.C Venn. . . . N.P. M W.C 7.0 20.8 34.0 47.3 0.8 83 51 33.94 13.391 1 58.08 9.37 K Vena* . . . N.P. 1.5 14.8 98.0 41.4 55.0 23 5338.10 3.83 • W. C 59.1 19.8 36.0 39.9 52.8 S3 S5 25.98 13.301 1 57.88 9.47) IT • Vena. . . . \.P. W.C 38.0 37.0 59.8 50.5 1 3.8 19.5 17.0 33.0 30.5 23 57 6.06 23 59 3.76 3.85 13.30 1 57.70 9.45 « 30 VMM . . . N.P. W c . 35.5 33.0 96.1 4*.8 4C.5 41.5 9.3 59.6 55.0 15.5 13.0 8.3 99.0 96.5 91.6 0 1 9.82 0 9 59.72 0 4 51.90 3.46 I3.03J 3.40 1 57.50 9.57) VMM . . . N.P. • .... 9S.S 3».0 59.3 5.6 19.3 0 6 52 31 13.91 1 57.44 9.51 • VMM. . . N.P. 55.5 8.7 99.5 35.5 49.0 922.24 3.96 M W. C M.5 5.8 19.5 31.8 46.0 11 19.35 19.90) 1 S7.08 9.64) as • SJ V«HM . . . N.P. W. C 47.5 44. » H.5 1.0 57.8 8.5 14.4 11.1 19.5 17.6 94.5 W.5 41.9 30.0 46.4 13 14.34 IS 11.19 17 19.48 3.42) 13.061 3.43 1 56.78 9.64 V-nu. . . . N.P. :<-' W.C 4>.l 9.5 16.0 99.3 43.0 19 15.98 13.191 1 56.50 9.76) • V««« . . N.P. 47.0 0.5 13.8 S7.I 40.5 0 91 13.78 3.43 98.034 66.0 53.4 • 43.3 58.8 10.1 83.5 37.1 0 93 10.16 13.15) 1 56.38 9.79) II m g « VMM . . . N.P. W.C VMM. . . . N.P. W.C 41.5 37.8 41.5 38.5 05.0 51.0 58.0 • 8.5 4.5 9.5 5.5 91.5 18.0 93.0 18.8 35.4 31.5 36.5 39.5 095 8.38 0 27 4.56 099 9.50 0 31 5.46 3.48 I3.36| 3.86 -13.59) 1 S6.I8 -1 56.96 9.88J +9.93) Thrr. alt. • .1 B«r. ml. lo 3-J* F. 97.914 Remarks. All ihf mr»iir» hjr lunp-Mfht »r» food, both ..hjrcti hrinf . nirrmHy well defined and itrudy. a ntnrrrtd by dayllfhl. i In. ni-« very tbarp. i bcordcd 8.O.. u wire C. i KxrHlent. c Recorded 43. St. at wire E. AT SANTIAGO DE CHILE. NOVEMBER 18. 1830— Continued. Results. h. in. s. Mean . . Twenty-two transits . . 23 46 19.20 h. in. m. 8. Correction for chronometer at 23 4ti . . — 4 2.52 h. m. A f at 23 44 249 m s. Rev. — 1 58.19 .... +9.323 Santiago sid. time N. P. = 3 1.65 h. m. a. 23 42 16. C8 0.15 NOVEMBER 19, 1850. Unfavorable. NOVEMBER HO, 1S5O. / * On this night there were many cirri about the planet, which, witli its treniulousncss, the proximity of the star, and the small magnitude of the latter, prevented observations. NOVEMBER 21, 1850. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers A. B. C. D. E. A a. A A Air. Wet. h. m. s. Rev. 8. fiev. Inches. O • la Venus . . . N.P. 58.0 11.5 21 6 38.0 51.3 22 53 24.68 —4.78 27.897 64.7 56.3 9 B. A. C. . . 6194 15.2 2J.2 41.8 22 54 15.09 3.70} —50.41 -1.07} 4 Vcr.us . . . N.P. B. A. C. . . 6194 54.6 8.1 58.3 21.6 13.0 35.0 35.3 38.5 22 55 21 .48 2} 57 11.81 4.87 3.90 50.36 0.97 Thi>r. att 68'. 4 Rar. rcil. 5a Venus . . . N.P. 50.8 4.0 17.6 30.5 . 22 59 17.38 4.81 27 ."790 6 B. A. C. . . 6194 • • 54.3 7.5 21.0 31.3 23 0 7.61 3.88 50.23 0.93 la Venus . . . N P. 11.5 25.1 38.5 5J.O . t 33 2 38.43 4.72 8 B. A. C. . . 6194 • • 10.4 38.8 41.8 5.1.3 23 3 2S.66 3.82} 50.23 0.69} 9a Venus . . . N.P. 51.3 4.7 18.1 31.3 . , 23 7 18.(0 4.6.1} 10 B. A. C. . . 6194 51.8 8.3 21.5 34.5 23 8 8.09 3.83 50.09 0.82} lit Venus . . . N.P. 46.0 0.0 13.3 26.5 . t 23 12 W.10 4.f2 13 B. A. C. . . 6194 • • 49.5 3.0 IS. 3 39.8 23 13 3.99 4.14 49.89 0.68 13a Venus . . . N.P. 30.5 34.0 47.1 0.5 . . 23 14 47.18 4.73} 14 B. A. C. . . 6194 • • 23.5 37.0 50.3 3.5 23 1.1 36.91 4.03 49.73 0.71} 15J Venus . . . N P. 13.0 36.0 23 17 2B.13 4.63 16 B. A. C. . . 6194 49.0 2.5 16.0 39.0 43.5 23 18 15.80 4.05} 49.07 0.57} 17 1 Venus . . . N.P. 45.0 58.5 12.0 25.4 2320 11.88 4.5.1 18 B. A. C. . . 6191 • • 48.5 1.5 14.5 28.3 S3 21 1.51 3.97 49.63 0.53 19 1 Venus . . . N.P. 33.2 46.5 59.5 13.3 . 23 31 5\78 7.10 20 D. A. C. . . 6194 35.5 49.0 2.5 16.0 23 33 49. C9 6.72 49.31 0.38 31 c Venus . . . N.P. 1.5 14.5 37.8 41.0 23 33 27.8") 6.64} 33 B. A. C. . . 6194 • • 3.5 16.8 30.5 43.5 23 37 16.91 6.31 49.0S 0.33} !: Venus . . . N.P. 53.5 6.0 18.8 3!. 3 23 39 19 05 6.37 34 0. A. C. . . 6191 • • 54.5 8.0 31.0 34.5 23 40 7.84 6.13} 48.79 0.23} 35 Venus . . . N.P. 23.0 41.3 54.5 7.8 23 41 5-1 .1.1 C 19 36 B. A. C. . . 6191 30.1 43.5 58.5 10.0 23 « 43.36 6.03 48.81 0.16 37 Venus . . . N.P. 4.5 17.5 31.0 41.4 23 11 31.00 6.15 38 B. A. C. . . 6194 • • 6.5 19.7 33.0 46.5 23 45 19.76 —6.02 -48.76 —0.13 250 INFERIOR OONJrxrTION OF VENUS, 185C-51, no \ ! ••••: 1 .11 »l 183O_ronl iii-i. il. 1 irr lilni- oflnm.i 1. -.; Mier Planrt- -Star. Bar neuri 1 * Ofcjm. A. B. C. D. E. A« AJ Air. VVci. . Mmn . . Twcntv-twn transits . . . S3 33 -U.I3 — 4 13.51 b. m. A f at 33 98 Id-v. . —0.357 = 0 6.96 Santiago sid. time X. P. h. in. n. .3398 8.69 0.00 NOVEMBER Hit, I85O. vercast all day. HOVtlMUiai H3, 1850. li « .. riwod ,«.r. 23 57 11.67 h. m. 9 0.03 NOVEMBER 35, 1850. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. U. E. A a. A«J. Air. Wet. •i a. 8. 1. 8. h. in. s. Rev. 111. 8. Rev. Inches. • • la V.-IITK . . . N.P. 13.3 23 5 39.7 53.0 6.4 23 47 39.78 —5.78 28.110 59.7 56.4 3 W. C 14.5 37.8 41.0 54.3 7.5 23 53 41.00 5.721 —6 1.22 — 0.05J 34 4 5 Venus . . . N.P. W. c Venus . . . N.P. 89.5 30.5 18.5 49.5 43.5 31.5 56.0 56.8 44.8 9.0 10.0 59.0 32.3 33.5 13.3 13 56 55.86 0 2 56.86 0 4 45.2? 5.60 5.75 5.691 6 1.00 +0.15 Thir. alt. 65°. 2 liar. reil. to 33° F. 28.012 6 W. C 30.3 33.5 46.8 0.0 13.3 0 10 46.74 6.00 6 1.52 0.30} 7 Venus . . . N.P. 11.3 34.5 37.8 51.0 4.2 0 12 37.76 a 53 8 W. C 12.5 36.0 39.1 52.3 5.5 0 18 39.16 6.03 6 1.30 0.51 9 Venus . . . N.P. 9.0 3-2.5 35.5 48.5 2.3 0 SO 35.5fi 5.2PJ 10 W. C 10.5 34.0 37.5 50.5 4.0 0 36 37.30 5.69 6 1.74 u.eoj 11 Venus . . . N.P. 55.5 8.6 31.6 35.0 48.5 0 38 31 .84 5.43 13 W. C 56.5 9.5 23 0 36.3 50.0 0 34 23.06 6.28 6 1.23 0.85 13 14 Venus . . . N.P. W. C 51.5 59.7 5.0 6.0 18.2 19.0 31.5 32.0 44.5 0 36 18.14 0 42 19. 03 &.',$ — 6.74J —6 0.91 +0.99J Remarks. The night lia> been remarkably clear; but, owing to an unprecedented storm of rain, accompanied nilli thunder anil lightning from 4 A. M. until lli i. »., lucre i> so much moisture in the air thai bo'.h objects arc blazing and unsteady. The measure* are therefore only fair. a Measure* by daylight. •' I. .imp not wnil. ing well. 252 INFERIOR CONJUNCTION OF VENUS, 1860-51, M>\ KMBER J15. 180O— Continued. Rtsulls. Mean . . . Prvrn iratulU . . . . h. in. Cocrrelioa for chronometer at 0 12 . . , h. in. ApatO 11 h. in. i. in. -. — 4 22.10 m. l. -« 1.37 Rev. .. + 0.4M) .... =0 9.35 li in. ». Santiago tid. lime N. P ....... 0 B S.C4 0.01 NOVEMBER 90, 1850. j Chronometer lime of iramit. Ml IT Planet— 3l«r. Bar TlltTIHf'IHctlTH. 1 Object. A. B. C. D. E. A a. A*. Air. Wet. 1 £ Rev Rev !,,. ; • - • • H 1 VMHH . . . N.P. 40.5 £3.7 7.0 20.5 34.0 047 7.14 — 3.C4 27.940 64.8 59.0 a Taylor . . S7.5 . . 54.8 . . 21.5 0 50 54.54 16.63 —3 47.40 +13.29 riirr. nit 3 Vroiu . . . N.P. 16.0 29.5 43.9 66.5 10.0 0 54 43.04 6.03 6S-.5 4 Tajlor . . . 8458 . . 17.5 30.5 44.0 57.8 053 30.85 19.67 3 47.81 13.65 II;. r ml. l.. :« 1'. 17.831 5 ... N.P 16.5 S9.8 43.3 50.5 10.1 1 0 43.38 8.39 • Taylor. . . MJB • • 17.5 • • 41.U 57.5 1 4 30.83 — 2i.07| —3 47.57 H 13.751 Remarks. Images good, but observations only (air. M. , Results. b. m. s. Three transit 05411.15 m.t. — 3 47.59 . h. ir. Correction for chronometer at 0 54 . m. K. — 4 21.32 R*T. + 13.5H8 Santiago siil. time N. P. h. m. " A pat 051 1.35 = 4 26.03 h. m. s. 0 49 46.83 NOVEMBER 27, 1SSO. Night cloudy. NOVEMBER 88, 18SO. i ('hiiiii'mirlcr limr nf transit. Planet— Star. Tliermomctrrii Mi- r. R»r Object. A. B. C. 0. •. Ao. 4<. nar. Air. Wet. i i. a. I. s. p. h. m. s. R.'v. m. «. K.v. Inchn. • • 1* . . IK.P. 31.5 45.8 59.0 19.0 95.5 93 54 5H.Q6 \M 97.948 63.3 55.9 a 8. A. C. . . 6214 54.5 . . 91.0 31.0 47.5 93 5890.94 15.78 -391.98 + 10.90 Thrr. an. *• Vcnitt . . . N.P. 53.1 6.9 19.5 39.5 46.0 0 9 19.46 8.94| 65- .6 4 B. A. C. . . 0914 15. 'J S8.S 41.7 64 8 8.2 0 54I.C4 19.9GJ 399.18 11.09 I: II n 1. m« r. 97.648 fit VMM. . . . N.P. . . 19.4 .'9.4 45.5 59.0 0 10 39.49 4. .',!!» e B. A. C. . . 8*14 H.I 41.:. 54.7 7.5 91.0 0 13 54.54 15.81 3 93.05 11.311 V«M iii . . . x r 42.0 B.I "1.7 B.I 0 17 8.44 4.9CJ R. A. r. . . can 4.5 31.0 09u 30. 06 9 Venn. . . . S I' 97.S 40 S S3.5 7.0 £0.5 09353.80 5.76J it D. A <:. . tre. The lightning tliuck within half a mile of Die otacrvatoiy ; the only instance rcincniucrcd when a house within the city experienced uijui) fiom inch came. • Recorded 22. Id. at wire C. 6 Recorded 31 .Of. at wire C. Results. Mcu . . . MuelriMiu . h. m. Correction for chronometer at 0 30 h m. r. 0 :•) 16. HI in. t. — 4 34.34 h.m. A f .i' + 2J.94 . . Hdilingn "id. time N. P. it U.27 Rev. + 5.441 f it .1 4U.U5 h. in. a. 0 £> 42.47 UKf KHIIKK 1, 1890. Cloudy. UKl K.MI1KH •-', l^U. Cloudy. AT SANTIAGO DE CHILE. 255 DECEMBER 3, 1S.30. No. for relVn'nee. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. ' An. A 1. Air. Wet. s. S. s. a. s. h. m. s. Rev. • »• Rev. Inches. O • 1 2 3 4 5 6 7 8 9 10 Venus . . . 8. P. W. C. . ... 39.5 53.2 23 0 • • 49.5 51.5 20.5- 8.5 7.5 0 S3 5-2.83 0 30 23.13 0 32 51.98 0 33 25.07 0 35 23.65 0 35 54.23 0 38 11.65 0 38 42.38 0 41 10.35 0 41 41.33 — 8.48 16.63} 8.97J 17.07 9.131 17.42^ 9.53 17.89J 9.921 —18.51 —30.25 30.09 30.58 3/T.73 t —31.03 +8.15J LOO) 8.29 8.36J +8.5f>t 28.035 Tlicr. an. 64°. 5 Bur. red. to 32° F. 27.939 63.5 54.5 Venus . . S.P. w. c 28.7 41.8 55.3 25.0 23.7 54.0 11.7 42 5 38.0 7.5 Venus . . . S.P. W. C 57.5 10.5 Vonus . . . S.P. W. C 45.5 58.5 Venus . . . P.P. W. C 41.0 57.3 10.5 41.5 :: Remarks. Extremely blurred and indutinct. Measures by daylight. Tiic star is not larger than 7.8th magnitude, instead of 6th magnitude, as in the Wash- ington Catalogue. Results. Mean .... Five trantits . . li. m. Correction for chronometer at 0 3j . . h. m. a. 0 3j 30.70 m. s. — 4 40.90 h. m. — 30.54 + 8.298 Santiago sit), time S. P. . . =242.10 h. m. n. . . 0 30 49.80 A pal 031 0.56 DECEMBER 4, 1S50. At night the star was too distant for observation. DECEMBER 5, 185O. The it ir xvn« srcn loo dimly for differential measurements with the equatorial. Diameter of Venus from a mean of 10 measures at Oft. 30m. sid. time, 3.S38 rev. Corrected diameter, GO". 91. DECEMBER 29, 185O. Unable to ilistinpuiah the comparing star in the morning twilight. DECEMBER 31, 1K.-.O. Comparing star iinilislin^uislKiltle in the morning twilight. JANUARY 5, 1851. Only the morning* of the 1st (il civil) and 5ih (6th civil) of January have lieou clear ; but it has not been possible to distinguish tiic comparing star, when Venus was sufficiently above the hori/on for observations. INFERIOR rONJrNCTION OF VENDS, 1860-51, .I\\t \HV fl. 1- M. J_ 1 Ckitwamrier I me of it Mean of H if. - Ml.T. Planet— fuu. Bar. A. R. C. D. r.. A.. AJ. Air. W.t h. m. •. Rer. m. «. Rer. ! ' • ' Vcno. . . . 8.F. 0.5 11.5 96.9 38.5 50.8 11 1595.90 +1.79J •.:.• | 58.0 il.l 9 B. A. C. . . (838 8.0 91.5 33.5 : 59.0 11 91 33.84 11.98 -6 7.94 -8.55J J 4 S Vc nu< . . . 8 P. B. A. C. . . 8838 Veno. . . . 8.F. SO.S 99.0 30.5 33.5 41.5 43.0 46.0 53.6 59. 0 58.5 6.0 8.9 11.0 18.5 90.8 11 9345.90 11 9953.73 H 31 S5.70 1.54 10.96 1.94 6 7.83 9.43 Th-r. rtt 63'. 3 Bar. red. to 3-1- K. 87.888 • B A. C. . . SE38 38.5 51.0 3.5 16.0 96.5 1138 3.50 10.5PJ 6 7.80 9.35J 7 Venui . . . 8.F. 44.5 57.5 10.0 93.5 35.0 11 40 9.90 0.11 8 B. A. C. . . 5838 •8.1 5.0 • • 30.9 43.5 11 46 17.49 + 9.53 -6 7.59 -9.43 Ttera were no remark* on this morning'* observations. Results. v • Four transits b. m i. 11 37 49.35 h. m. Correction for chronometer at 1 1 88 m. >. Rfv. — 6 7.79. . . . —9.437 Santiago tic!, time S. F. . . . h. m. " A pat 11 33 0.24 i. — 43.30 = 3 3.93 h. m. •. 11 97 7.05 .1 \M \KY 1, 1831. * Chronometer time of transit. ri.Mid— Star. Thermometer*. • Bar -. llbject. A. B. C. D. E. A a. Aar. Air. Wet. S •1 d s. s. •. s. s. li. m. s. Rer. m. s. Rev. Inches. O 0 1 Venus . . . 8.F. 33.5 48.3 58.8 11. 1 23.5 11 1C 58.64 +18.43 28.010 60.6 55.4 9 B. A. C. . . 5839 15.0 27.5 40.0 52.3 4.8 11 21 39.92 3.52J —4 41.28 +H.90J Ther. ntt. 3 Venus . . . S.F. 21.8 33.8 46.7 59.3 11.6 11 23 46.63 18.34 64°. 6 4 B. A. C. . . 5839 2.5 15.0 37.5 40.0 5-2.5 11 2827.50 3.40} 4 40.88 14.93} Bar. n-il. to 33° F. 27.913 5 Venas . . . S.F. 8.6 21.0 33.5 46.0 58.3 11 30 33.48 17.91 6 B. A. C. . . 5839 49.0 1.5 14.0 86.5 39.0 11 35 14.00 3.04 4 40.52 14.97 7 Venus . . . S.F. 54.3 6.6 19.0 31.4 43.9 11 37 19.01 17.50 8 B. A. C. ' . . 5839 34.5- 47.0 59.3 11.6 24.0 11 41 59.28 2.51 4 40.24 15.05 9a Venus . . . S.F. 32.0 57.7 10.2 22.5 11 4-1 57.49 +14.85 lot B. A. C. . . 5839 13.0 38.3 50.5 3.0 11 49 38.09 — 0.27 4 40.60 15.12 11 Venus ... S.F 5.5 18.0 30.5 4-2.8 55.1 11 52 30.38 +18.17 12 B. A. C. . . 5839 45.5 58.0 10.5 23.0 35.3 11 57 10.48 3.0-2J 4 40.08 15. Mj 1.1 V. !iu« . . . S.F. 1.5 14.0 36.5 39.0 51.3 11 59 26.46 20.22 14 B. A. C. . . 5*39 42.0 54.3 6.6 19.0 31 5 12 4 6.68 +5.02 —4 40.22 +15.50 33 258 INFERIOR CONJUNCTION OF VENUS, 1850-51, JAXl'ARY ». 1851-fontlmicd. A'l inarkt. I'mr mnrnini, rl.-nr imagr*, and good mcaiurta. a Mrinim by daylight. » Recorded 37. 3.. at wire C. Results. h. m. ». Mean . . . Seven tran.iu . . . . II 37 56.08 h. m. •- Correction for chronometer ai II 38 . . . —44.88 h. m. A. at 11 39 . . . m. 9. — 4 40. 53 . Rev. . +15.033 Hnntiago lid. time S. F. . 0.33 . =4 51.97 h. m. >. 11 37 11.14 JANUARY 10, 1851. i Object. Chronometer time of trux-it. Mean of wire* Micr. Planet — Star. Bar. hcrmoaetera. A. B. C. D. E. A«. &l. Air. Wet. a. a. a. l. a. h. m. ». Rev. m. a. Rer. Inchei. • • la Venui . . . 8.F. SO. 5 3.3 15.5 S8.0 40.5 11 3 15.56 +99.08 •MM 60.0 54.7 < B. A. C. . . 5839 45.0 57.5 10.0 22.4 35.3 11 7 10.03 3.03J -3 54.46 +19.011 3 a 4 Venn . . . B.F. B. A. C. . . 5839 36.5 31.0 49.5 43.5 55.9 14.3 8.5 96.7 81.0 11 10 1.70 11 13 53.98 20.31 1.34 354.S8 19.07 Ther. att. 65'. 0 Oar. n'd. to 39 !•'. 17.1 • M 1 Venn . . . 8.F. B. A. C. . . 5839 38.8 33.0 51.5 45.8 4.0 58.1 16.5 10.6 98.5 33.0 11 16 3.86 11 1958.10 19.711 0.79 3 54.94 18.951 7 Venui . . . 8.F. 43.6 56.3 8.5 91.3 33.5 11 93 8.69 19.5P| 8 B. A.C. . . 5839 38.0 50.0 S.5 15.1 87.5 11 96 9.69 0.53 354.00 19.05| 9 Veniu . . . 8.F. 16.8 29.4 42.0 54.5 6.8 11 36 41.86 80.37 M B. A.C. . . 5839 10.5 33.0 3S.S 47.8 0.4 11 33 35.44 1.301 3S3.58 19.061 lie Vrnui . . . B.F. 10.0 87.5 39.8 52.3 4.6 11 34 39.84 10.70 .-• B. A. C. . . 5839 8.1 30.8 33.0 45.5 57.9 11 38 33.02 0.61 3 53.18 19.09 134 Ve««« . . . B.F. 31.0 43.5 56.0 • 8.3 ao.8 11 40 55.93 +19.0J1 M B. A.C. . . 5839 94.0 36.8 49.5 1.5 14.0 11 44 49.16 —0.04 353.94 19.061 IS. Venn. . . . 8.F. *.S 51.3 3.5 16.3 98.5 11 47 3.69 +18.43 M B. A.C. . . StOt 31.5 44.0 66.5 9.0 91.5 11 50 56.50 — 0.63 :•. . .-- 19.06 J7 Venui . . . B.F. 53.5 6.0 18.5 t m 43.4 11 53 18.44 +17.80 18 B. A. C. . . 5839 46.3 59.0 11.5 83.8 36.3 11 57 11.38 —1.99 359.94 19.09 It Veniii . . . 8.F. 40.0 54.5 5.0 . . 39.5 19 0 4.84 + 16.f*| M B. A. C. . . 5839 38.3 44.5 57.0 9.6 33.1 19 3 57.10 Ml 353.96 19.071 11 Venn.. . . B.F. 0.5 13.0 85.5 87.8 50.3 19 615.49 +16.301 • B. A. C. . . 5839 • • 17.0 89.5 4i.S 13 10 17.91 -9.81 —3 51.79 +19.111 Remarks. It wll be >een tbal the planet waa not 3* from the hotiinn at the lime of tor Ant otwrvaiion. During the finl Are meainrea the dink wan blurred. "O>» dtaunce through which It waa peceaaar)- to more the micrometer acrew tendered abwlute liability in the pmition of the instrument uncertain. a Blurred. t Bem-r. e Good. * Fliarp. t Dajlight. Renltt, V. ) .. . h. m. a. II :n 47.94 m. N. — 353.35 . Bev. + 19.086 . h. in. Correctwa far chronometer at 1 1 33 . — 45. tl Santiago rid. time 8. F. h. m. " A pat II nr, 0.43 . . =6 19.60 h. in. -. . 11 34 1.83 AT SANTIAGO DE CHILE. 259 JANUARY 11, 1851. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet — Star. Bar. Thermometers. A. B. C. D. E. . A a. A I. Air. Wet. a. s. s. 8. s. h. in. s. Rev. 111. B. Rev. Inches. • • la Venus . . . 8.F. 45.0 57.5 10.0 23.5 35.0 11 4 10.00 +15.67i 27.992 58.9 53.6 24 B. A. C. . . 5839 43.5 56.0 8.5 21.0 33.5 11 7 8.50 — 5.49 —258.50 +21.16J 3 4 tt Venus . . . S.F. B. A. C. . . 5839 Venus . . . 8. P. 0.6 23.5 13.5 35.0 36.0 24.3 47.5 38.0 36.5 0.0 50.5 49.0 12.5 11 9 25.79 11 1324.19 11 14 47.50 +16.66 — 4.59 +16.59 2 58.47 21.25 Ther. att. 64°. 5 Bar. red. to 32° F. 27.896 a B. A. C. . . 5839 90.8 33.0 45.5 58.0 10.5 11 17 45.56 — 4.68 2 58.06 21.27 7 Venus . . . 8.F. 45.5 58.5 10.8 23.5 35.8 11 20 10.82 +16.59 8 B. A. C. . . 5839 43.5 56.0 8.0 20.5 33.5 11 23 8.30 - 4.73J 2 57.48 21.32J 9 Venus ... . 8.F. 55.7 8.3 80.8 33.9 45.5 11 2520.70 —16.38 10 B. A. C. . . 5839 sa. a 5.5 18.3 30.5 43.0 11 28 18.08 + 4.87, 2 57.38 21.25i 11 Venus . . . S.F. 31.5 43.8 8.5 21.5 11 30 56.37 +16.03 19 B. A. C. . . 5839 S8.5 41.0 53.5 6.0 18.5 11 33 53.50 - 5.19 —2 57. 13 +21.22 Remarks. A fine morning until suddenly interrupted by a dense fog. The images were sharp and measures generally good, a A little blurred. k Recorded 8.0«. it wire C. c. Good. Results. h. m. s. Mean .... Six transits . . . . 11 17 28.59 h. in. B. Correction for chronometer a 11 17 ... —45.88 h. in. A p at II 18 .... m. s. 2 57.78 . Rev. . +91.247 Santiago sid. time 8. F. // . 0.79 = 6 54.10 h. m. 8. 11 16 42.64 JANUARY 1 i. 1831. No. fbr reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. Ai. Air. Wet. -' B. 8. 8. 8. h. m.H. Rev. m. s. Rev. Inches. • 0 la Venus . . . 8.F. 14.3 27.0 39.5 52.0 4.5 11 5 39.46 + 18.09 27.983 66.2 60.3 9 B. A. C. . . 5839 . . 20.8 33.9 45.6 58.5 11 7 33.30 — 3.56J —1 53.84 +S1.65J 3a _4 5* Venus . . . B.F. B. A. 0. . . 5839 Venus . . . S.F. 36.5 30.8 14.5 49.5 42.6 27.0 59.3 39.5 13.8 7.7 H.O 26.5 20.3 4.5 11 10 1.53 11 11 55.30 11 14 39.50 +18.12J — 3.49 +18.33i 1 53.78 si .en Thor. att. 68°. 0 Bar. red. to 32° F. 27.876 « B. A. C. . . 5839 8.0 90.5 33.0 45.8 58.0 11 16 33.06 — 3.31J 1 53.56 21.65 7 Venus . . . B.F. 22.3 34.8 47.3 0.0 12.5 11 19 47.38 + 18.22J 8 B. A. C. . . 5839 15.5 97.8 40.5 53.0 5.2 11 21 40.40 — 3.35 1 53.02 21.57} 9 Venus . . . S.F. 1.5 14.0 26.3 38.8 51.5 11 24 26.42 +18 07J 10 B. A. C. . . 5839 54.S 7.0 19.5 31.8 44.5 11 28 19.46 — 3.51 1 53.04 21 .581 lie Venus . . . B F. 8.3 21.0 33.5 46.0 59.3 11 28 33.62 +17.88 1* B. A.C. . . 583B 9.5 15.0 i 27.5 39.7 52.0 11 30 87.31 — 3.651 —1 53.79 +21.53J 260 INFERIOR CONJUNCTION OF VENUS, 1850-51, j \Nt M IT 18, ISS1— Tout! nurd. 1 C • t. V • . i1 M , r PlnnH- -Bur. it- r Ttienonc •' r- k Object. A. B. c. D. C. 1 ' A* A i. Har. Air. V.,: & * (. •. a. a. i. b. m. .. Rev. m. ». Her. Inclu-i. • • Ud Vrnu. . . . 8.F. 99.8 35.4 47.8 0.3 19.8 11 39 47.83 +17.831 97.983 66.9 60.3 14 B. A. C. . . IB* 15.5 98.0 40.5 53.0 5.3 11 34 40.46 — 3.74 -1 53.64 +81.571 IS 11 17 » Vrau . . . B.F. B. A. C. . . se» Venn. . . . 8.F. 45.9 37.S 45.3 58.0 50.3 58.0 10.3 3.0 10.5 22.5 15.3 99.8 35.0 97.8 35.9 11 37 10.30 11 39 9.78 11 41 10.38 +17.561 -4.031 +17.SSH 1 59.58 31.60 Tbrr. Ml. 68'. 0 Bar. ml. •... 1. 97.876 18 B. A. C. . . 5839 38.9 S0.3 9.5 15.0 97.3 11 43 9.66 — 4.38 1 59.30 91.571 19 Veniu . . . B.F. 8.5 18.8 31.3 43.6 11 45 18.83 +16.98 90 B. A. C. . . 5KB 46.0 58.5 10.8 93.1 35.6 11 47 10.80 -4.631 1 51.97 91.591 81 Vinu. . . . B.F. 56.8 9.9 91.6 34.0 46.5 11 49 91.69 + 16.57J a B. A.C. . . 6-39 49.0 1.5 13.6 95.5 38.3 11 51 13.58 — 5.00 1 51.96 91.57} »/ 94 Veniu . . . 8.P. B. A.C. 5639 11.0 9.5 93.5 15.5 35.8 98.0 48.4 40.3 0.8 59.8 11 5335.90 11 55 97.89 U • 5.35 1 51.92 91.58 85 Veniu . . . 8.F. 13.8 96.9 38.8 51.9 3.5 11 57 38.70 +I5.81| 86 B.A. C. . . 5839 5.0 17.8 30.5 49.8 55.1 11 5930.94 — 5.75 1 51.54 91.561 «« Veno» . . . B.F. 56.8 9.4 99.0 34.3 46.8 19 391.86 +15.17 88 B. A. C. . . 6839 48.5 0.5 13.0 95.5 38.0 19 4 13.10 — 6.401 1 51.34 91.571 8> Venm . . . B.F. 55.5 8.0 90.5 39.8 45.3 19 690.43 +14.761 30 B. A. C. . . S839 40.5 59.0 11.5 93.8 36.5 19 8 11.46 — 6.76J 1 51.04 91.53 31 VMM . . . B.F. 3.5 16.0 98.5 40.5 53.2 12 10 98.34 +14.98 M B. A.C. . .5839 54.3 6.7 19.1 31.5 44.0 13 I-J 19.13 -7.281 1 50.78 31.561 33 Veniu . . . B.F. 4.5 17.3 99.8 41.9 54.3 19 14 39.56 +13.84 34 B. A. C. . . 5839 58.0 8.3 90.6 33.6 45.3 13 16 90.56 — 7.79 1 51.00 31.56 3i Venu . . . B.F. 1.5 13.5 96.0 38.5 50.8 13 18 96.06 +13.34 X B. A. C. . . 5639 • • 4.0 16.5 99.0 41.3 13 30 16.48 — 8.931 —1 50.43 +21.571 Remarks. Thta bat been by far the Anext morning during the ncriei . Tli«' atniwphere olcmr and all the measure! utiifictory »ft« «lie •lar (and the otily one) i. now Men tor the ttrrt lime in the fluid with U. A. C. 5S39. a Blurred, i Better, c t harp image. ' Clean image. t I cannot make better nieuurc* than Ibcut . / Daylight. g Excellent. ve. A minute Men . . . Eighteen Iramiu . . II •(•-' 54.31 h. m. «. Correction for chronometer at 1 1 43 . . . —46.19 h. nt. & l> al II 43 . . m. «. 159.94 Rev. +-J1.589 . =7 0.63 h. m. a. Santiago fid. time 8. F 1143 8.19 0.44 .1 \ \< \1M 13, The .tar and planrl wrrr loo lew In A. R. |., .. .> ilm.ugh 10 large in arc wliiUt thty pawed acroti id- AT SANTIAGO DE CHILE. 261 JANUARY 14, 1851. No. for refertMK-r. Object. Chronometer time of transit. Wean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. £. A a. A A Air. Wet. s. 8. 8. s. 8. b. in. 8. Rev. s. licv. Inches. • a 1 2 B. A. C. . . 5839 Venus . . . S.F. 47.5 28.5 0.0 41.0 11 16 12.38 11 16 53.68 + 3.20 -13.99 +41.30 —17.19 27.968 63.0 57.4 . . . . 19.2 3 4 5 B. A. C. . . 5839 Venus . . . S.F. B. A. C. . . 5839 6.5 48.0 58.5 19.0 11 1931.38 11 20 12.94 11 2323.42 + 3.12 —14.04 + 3.18 41.56 17.16 Ther. an. 70°. 6 Bar. red. to 32° F. 27.8T3 13.0 93.5 • • 38.0 6 7 8 9 10 Venus . . . S.F. B. A. C. . . 5839 Venus . . . S.F. B. A. C. . . 5839 Venus . . . S.F. 53.5 35.5 7.8 49.3 52.5 6.0 20.5 • • • • 30.5 11 24 5.25 11 26 18.38 11 27 0.58 11 30 32.78 11 31 14.88 —14.021 + 3.15 —13.96 + 4.08 —13.05 41.83 42.20 42.10 17.201 17.11 17.13 • • 13.9 95.5 • . 97.5 40.3 11 B. A. C. . . 5839 25.0 . . 50.5 . . 11 33 50.17 + 4.'2 12 13 14 15 16 a Venus . . . S.F. B. A. C. . . 5839 Venus . . . S.F. B.A. C. . . 5839 Venus . . . S.F. 56.5 38.8 9.0 32.5 • • 57.7 11 34 32.65 11 38 21.38 11 39 3.88 —12.37 + 4.92J —12.221 + 5.16 -11.96 42.48 42.50 17.09 17.15 17.12 • • 16.5 98.8 • • 47.9 • • 11 41 47.20 17 18 19 B. A. C. . . 5839 14.5 57 9 • • 11 44 14.50 11 44 57.20 11 46 37.30 + 5.39 —11.73 + 5.6C-1 42.70 17.12 B. A. C. . . 5839 37.3 90 Venus . . . B.F. • • • • 90.3 • • 11 47 90.30 —11.49 43.00 17.121 91 B. A. C. . . 5839 . 15.0 11 49 15.00 + 5.871 92 Venus . . . S.F. • • • • SH.O • • • • 11 49 58.00 —11.201 43.00 17.08 23 B. A. C. . . 5839 . . . . 49.0 . . . 11 51 49.00 + 6.13 94 Venus . . . S.F. • • • • 01.3 • • 11 52 32.30 —11.00 43.30 17.13 95 96 H B. A. C. . . 5839 Venus . S F. • • • • 31.1 14.9 • • 11 54 31.10 11 55 14.20 11 57 2.90 + 6.40 —10.791 + 6.61 43.10 17.191 B. A. C. . . 5839 9.2 28 Venus . . . B.F. • • • • 45.5 • • • • 11 57 45.50 -10.561 43.30 17.171 99 30 31 32 33 B. A. C. . . 5839 Venus . . . 8 F. • • 17.8 1.6 • • • • 11 59 17.80 12 0 1.60 12 1 45.50 12 2 29.40 12 4 9.50 + 6.85 —10.25 + 7.131 — 9.98 + 7.411 43.80 43.90 17.10 17.111 B. A.C. . . 5839 Venus . . S.F. 45.5 29.4 • • B. A. C. . . 5839 9.5 34 Venus . . . S.F. • • • • 53.5 • • 12 4 53.50 - 9.71 44.00 17.121 356 36 37 38 39 B. A. C. . . 5839 Venus . . . B.F. • • • • 39.7 23.5 • • 12 6 39.70 12 7 23.50 12 9 11.00 19 9 54.80 12 11 43.40 + 7.651 — 9.44 + 7.90 — 9.18 + 8.26 43.80 43.80 17.091 17.08 B. A. C. . . 5639 Venus . . . g.F. • • 11.0 54.8 • • • • B. A. C. . . 5839 43.4 40 Venus . . . S.F. 97.8 • • • • 12 12 27.30 — 8.80 44.40 17.06 41 B. A. C. . . 5839 f f g f 5.5 . t 12 14 5.50 +8.461 49 Venus . . . S.F. • • 50.3 • • 12 14 50.30 —8.56 44.80 17.021 43 B. A. C. . . 5839 f m r f 43.2 t t t t 19 16 43.20 +8.76 44 Venus . . . S.F. • • • • 27.8 12 17 27.80 -8.2C1 44.60 17.041 45 46 B. A. C. . . 5839 Venus . . . S.F. • • • • 20.1 4.6 • • • • 19 19 20.10 12 20 4.60 +9. IS —7.94 +44.50 —17.06 263 INFEBIOB CONJUNCTION OF VENUS, 1850-51, J \\l M LY 14, 1851-Contl ......1. • 1 C of taauk L M. , ,• u If Micr Planet- •8ur. Bar i •• . • I • : Object. A. B. C. D. E. A«. Ail Air. u. , $. • li li B. i. b. m. a. Rer. a. Rer. i... hi k • • 47 48 B.A.C. . . S8» Vow . . 8.F. • • • • 41.8 96.8 • • • • 1491 41.60 12 2J S6.SO +9.34 —7.74 +45.90 —17.08 a MI 63.0 S7.4 49 BAG 5839 5 0 19 94 5.00 +9.59 TIllT. alt. 70'. 6 M SI Vena. . . . 8.F. B A C - ••' • • • • 50.1 33 0 • • • • 19 94 SO. 90 19 96 33 00 —7.49 4-9 941 45.90 17.01 Bar red. 1..39-F. 97.873 M V,-nu» . . . B.F. 18.0 19 97 16.00 — 7. IK", 45.00 17.01 S3 54 B. A. C. . . 8839 Veniu 8 F. • • • • 96.5 11 5 • • • • 19 99 96. SO 19 30 11. SO +10 39 — 6.781 45.00 17.101 SS B. A. C SM9 S3 S 19 33 93.50 +10.88 58 Venui . . . B.F. 8.S 19 34 8.50 — 6.17 +4S.OO —17.05 Remarks. A remarkably fine morning ; clear, uliarp imagea and (rood measures throughout, though rather more hurried than ia desirable, on account or (he distance through which the micrometer screw had to be moved. a Not incorporated into the remit*. 1 Daylight. Twenty-seven transit! . h. m. Correction for chronometer at 11 58 Rtntlti, li. m. B. 11 58 7.39 I. — 47.4S + 43.53 Rev. — 17.104 Santiago aid. time S. F. . =5 33.36 h. m. «. 11 57 19.97 h. m. A pat 11 57 0.99 .1 \ \ I \ K \ 15, 1851. | ^ Object, Chronometer time of transit. Mean of wirei. Micr. Planet — Star. Bar. Thermometer!. A. .B. C. D. E. Ac. A 4. Air. Wet. a. •. i. • •. a. b. m. .. II.-v. i. II. V. Inche.. • • , VMMM . . . 8.F. . 94.S t < B < 11 94 94.50 +9.61 97.918 65.5 59.0 » H.C. . . . 31543 . . . . 56.5 . . • • 11 94 56.50 4.51 -39.00 +5.10 3 4 5 Vena* . . . B.F. 9.1 11 97 9.10 11 97 40.60 11 99 6.40 11 99 38.00 9.80 4.70 10.97 5.14 31.50 31.60 5.10 5.13 Thrr. an. 70-.0 Bar. red. M • r. •7.8*8 H.C. . . . 31543 Venai . . . 8.F. • • • • 40.8 6.4 • • • • H.C. . . . 31543 • • • • 38.0 • • • • 7 WHO. . . . 8 F. , . . , 45.7 , . 11 31 45.70 10.9} 8 B.C. . . . 31543 • • • • 17.3 • • • • 11 39 17.30 5.13 31.60 S.09 • Vrnu. . . . B.F. . . 9S.3 . . 11 33 95.30 10.91 10 U It 13 14 H.C. . . .31543 Veaai . . . B.F. • • • • 57.0 43 8 • • • • 11 33 57.00 11 35 43.80 11 30 15.50 11 38 0.60 11 3899.30 5.14 10.10 4.98 9.M 4.84 31.70 31.70 31.70 J.07 6.19 5.11 H. C. . . . 31541 Vfnui . . . B.F. • • • • 15.5 0.6 • • • • H.C. . . . 31543 . . • • a.s . . • • IS Vena. . . .HI'. f 6.0 . . 11 40 6.00 9.79 U H.C. . . . 3I.M.-I • • • • 37.1 • • • • 11 40 37.10 +4.79 —31.10 +5.07 AT SANTIAGO DE CHILE. 263 JAJTUART 15, 1851-Comtlnned. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E." An. A I. Air. Wet. 8. B. 8. t. 8. h. in. 8. Rev. 8. Rev. Inches. O O 17 18 19 20 21 22 23 24 25 26 27 96 29a M 31 32 33 34 as 36 37 38 39 40 41 43 43 44 45* 46 47 48 49 90 51 W 53 54 55 56 57 58 H 9.0 11 42 9.00 11 42 40.00 11 44 13.90 11 44 44.50 It 46 27.30 11 46 58.00 11 48 43.60 11 49 14.20 11 52 15.20 11 52 45.00 11 54 5.00 11 54 35.10 11 56 13.50 11 56 43.20 II 58 11.50 11 58 41.50 12 0 29.40 12 0 59.90 12 2 20.50 12 2 50.00 12 4 8.50 13 4 37.60 12 6 7.00 13 6 36.50 12 7 53.60 19 8 23.00 19 9 53.30 12 10 22.60 19 11 59.50 12 12 28.30 12 14 2.60 12 14 30.30 12 16 14.10 12 16 42.50 12 18 3.80 12 18 32.30 12 19 53.00 12 20 21.50 12 22 1.30 12 22 30.00 12 23 59.30 12 24 27.50 12 25 53.00 12 26 20.80 + 9.61} 4.57 9.50J 4.45 9.30} 4.33 9.13 4.11 9.02 4.05, 8.88fr- 3.82} 8.69 3.631 8.40 3.36J 8.27} 3.32} 8.09 3.06, 7.89} 2.93 7.73} 2.77 7.46 2.50 7.25} 2.26} 6.99} 9.00 6.68 1.71} 6.48 1.55} 6.28} 1.33 6.11 1.15 5.79 0.86} 5.55 0.56} 5.41 +0.45 —31.00 30.60 30.70 30.60 29.80 30.10 29.70 30.00 29.50 39.50 29.10 29.50 29.40 29.30 28.80 27.70 28.40 38.50 28.50 28.70 28.20 —27.80 +5.04} 5.05} 4.97} 5.02 4.96} 5.06 5.05} 5.03} 5.05 4.95} 4.96} 4.E5} 4.96 4.99 4.99} 4.96} 4.92} 4.95} 4.96 4.92} 4.98} +4.98 27.918 Ther. att 70°. 0 Bar. red. to 32° F. 27.805 65.5 59.0 H. C. . . . 31543 • • • • 40.0 13.9 • • • • B.C. . . . 31543 Venus . . . S.F. II. C. . . . 31543 Venus . . . S.F. B.C. . . . 31543 Venus . . 8 F. • • • • 44.5 27.3 53.0 43.6 14.2 15.2 • • • • H.C. . . . 31543 • • 45.0 5 0 • • • • II. C. . . . 31543 Venus . . . S.F. H. C. . . . 31543 Vonm . . .S.F. 35.1 • • • • 13.5 43 2 • • • • 11.5 H. C. . . . 31543 41.5 29.4 H. 0. . . . 31543 Venus . . . 8.F. H. C. . . . 31543 • • • • 58.9 20.5 50.0 8.5 • • • • Venn« . . . S.F. II. C. . . . 31543 Venus . . . 8 F. • • 37.6 7 0 • • • ' H. C. . . . 31543 Venm . . . S.F. • • • • 36.5 53.6 • • H.C. . . . 31 M3 23 0 Venus . . . S.F. 53 3 H. C. . . . 31543 Venus . . . S.F. • • 23.6 59.5 • • • • B.C.. . . 31513 Venus . . . S.F. • • • • 28.3 3 6 • • • • H. C. . . . 31543 Venus . . . 8 F. • • • • 30.3 14 1 • • • • H. 0. . . . 31543 Venus . . . 8 F. II. C. 31543 • • • • 42 5 3.8 32.3 53.0 • • • • Venus . . . 8.F. H.C. . . . 31543 Venus . . . S.F. • • • • 21.5 1.3 • • II. C. . . . 31543 Venus . . .S.F. H. C. . . . 31543 Venus . . . S.F. H.C. . . . 31513 • • • • 30.0 59.3 27.5 53.0 20.8 • • 204 INFERIOR CONJTNCTION OF VENUS, 1850-51, J \M Mil 19, 1891-Contlnnrd. Remarks. A ffcir moraine only. I'ntil Ilir nlmrvnlion at IU. Mm., III.- plnnfl »•»« -.'in. « h.il lilnrrnl ami , a llriu-rili lined an. I ni"ti.»i more uniform. /.'. • life. Meu Tinny transit! . . h. m. Correction for chronometer u 1 1 56 h. m. •. II 28 9.88 . . -48.96 h. m. .. Rrv. — 39.B4 .... +5.018 Santiago rid. time S. P. . . * =137.80 h. in. •. 11 5531.7:1 A put 11 S6 0.09 JANUARY 10, 1851. • Chronometer time of tron-u. Planet — Star. Thermometer*. 5 _ \j , , n , ,• u Micr. !'. ir. H Object. A. B. C. D. E. An. Anu. . . . B.F. 45.9 57.8 10.9 99.5 35.0 I-J 10 10.14 4.13 1 8.08 ,: •• • II ' . . . 31M3 •M 46.8 1.1 13.5 96.0 19 19 1.06 4.79J a V*a*i . . . 8.F. 44.9 56.8 99 91.5 34.0 12 13 9.14 +3.85 +1 8.06 —0.941 AT SANTIAGO DE CHILE. 265 JANUARY 16, 1851— Continued. j Chronometer time of transit. Planet — Star. Thermometers. E Object. A. D. C. D. E. A a. At. Air. Wet. s i 8. B. s. 8. 8. h. m. s. Rev. 111. S. Rev. Inches. - • 33 H. C. . . . 31543 9.5 22.0 34.5 47.0 59.5 12 15 34.50 +4.39 S7.918 61.4 56.5 31 Venus . . . 8.F. 18.3 30.5 43.0 55.0 6.0 12 16 42.96 3.45^ +1 8.46 -0.934 Ther. att. 35 II. C. . . . 31543 2.5 15.0 27.3 39.5 52.0 12 19 27.26 3.924 69°. 9 36 Venus . . . 8.F. 11.0 23.3 35.8 44.2 0.6 12 20 35.78 2.92 1 8.52 1.004 Bar. red. to 32° F. 27.805 37 II. C. . . . 31543 54.6 7.2 19.7 33.2 44.6 12 22 19.66 3.58 38 Venus . . . 8.F. 3.7 16.3 28.6 41.0 53.5 12 33 28.62 2.57 1 8.96 1.01 39 H. C. . . . 31543 1.0 13.5 26.0 38.5 Sl.O 12 35 26.00 3.09 40 Venus . . . 8.F. 10.3 22.6 35.0 47.5 0.0 12 26 35.08 2.03 1 9.08 1.06 41 H. C. . . . 31543 31.5 44.0 56.5 9.0 21.3 12 28 56.46 2.78 / 43 Venus . . . 8.P. 42 0 55.0 7.5 19 8 32.2 12 30 7.30 1.80 1 10.84 0.98 43 II. C. . . . 31543 15.3 27.7 40.0 52.5 4.8 12 33 40.06 3.244 44 Venus . . . 8.F. 34.7 37.5 49.8 2.3 14.5 12 33 49.76 +1.244 +1 9.70 — l.CO Remarks. Fine morning; good images and steady motion throughout. Mean . . Twenty two transits . h. m Correction for chronometer at 11 58 Results. ti. m. ». m. 8. Kev. / n iu . . . 11 57 42.57 m. 8. h. m. s. 58 . . . — 48.66 Santiago Bid. time 8. F. . . . ... 11 56 53.91 h. m. n A 0 at 11 56 0.01 JANUARY 17, 1851. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. An. AcJ. Air. Wet. l. 8. 0. l. s. h. m. >. Ruv. m. B. Rev. Inches. I • 1 H. C. . . 31543 23.5 35.0 47.3 0.0 12.5 11 23 47.46 +6.08 27.925 64.1 56.7 2 Venus . . . 8.F. 11.5 34.3 36.5 49.0 1.5 11 96 36.56 -1.63J +2 49.10 -7.711 n 4 5 II. C. . . . 31543 Venun . . 8.F. B.C.. . . 31543 30.8 30.1 30.5 43.0 32.6 43.3 55.5 45.0 55.5 8.0 57.5 8.0 20.5 10.0 20.5 11 28 55.56 11 31 45.04 11 33 55.56 +5.77 —1.95 +5.5U 2 49.48 7.72 Ther. att. 70°. 5 Bar. red. to 32° F. 27.811 6 Venus . . . 8.F. 20.3 32.6 45.0 57.5 10.2 11 36 45.12 — 2. set 2 49.56 7.78 7o 8 II. C. . . . 31543 Venus . . . 8.F. 52.0 43.6 4.7 55.0 17.5 7.5 29.8 20.0 42.3 32.5 11 40 17.26 11 43 7.53 . +5.21 —2.63 z'so.se 7.84 9 H. C. . . . 31543 5.5 18.0 30.3 42.7 55.0 11 45 30.30 +4.67 U Venus . . . 8.F. 55.8 8.5 20.8 33.2 45.5 11 48 20.76 —3.11; 250.46 7.7^ 11 If. C. . . . 31543 50.6 3.3 15.6 28.0 40.5 11 50 15.60 +4.33 13 Venus . . . 8 F. 41.6 54.3 6.6 19.3 31.5 11 53 6.66 —3.53 2 51.06 7.88 13 II. C. . . . 31543 41.5 54.0 6.5 19.0 31.5 11 55 6.50 +3.88 14 Venus . . . 8.F. 33.8 45.5 58.0 10.3 22.6 11 57 57.84 — 4.WJ 251.34 7.90J IS II. C. . . . 31543 39.5 52.0 4.5 16.5 29.3 12 1 4.36 +3.02 16 Venus . . . 8.F. 31.0 43.5 58.0 8.5 21.0 12 3 56.00 —4.90 +2 51 .64 —7.93 34' 266 INFERIOR CONJUNCTION OF VENUS, 1850-51, JAXVARY IT. 1H51 Conllnned. 4 Chronometer time of irmnr II. Planet— Star. ......... Object. Mmnorwtm. Mlcr. Bar. A. B. C. 1). 1 Ac. A* Air. Wet. & 4 h. in... Rer. ui. >. Err. InchM. • • IT II. r. . . . 31543 36.0 8.3 91.0 33.9 45.7 19 6 30.88 +9.40 97.995 61.1 Venn. . . . 8.P. 48.0 0.5 13.0 25.5 38.0 19 9 1.1.00 — 5.521 ..:•. 1 — 7.93J Th»r. all. 19 It. r. . . . 31S43 11.3 94.0 36.9 48.5 1.9 19 12 36.94 +5.44 70'. 5 90 Verm. . . . 8.F. 9.8 16.8 29.1 . . 53.7 19 15 98.94 —9.60 9 59.70 8.04 Bur. rrd. 1.. 32- K. 27.811 91 II. c. . . . 31513 39.5 K.O 4.5 17.0 99.9 19 18 4.44 +4.17 • Vrnui . . .8V. 31. 5 • • 57.0 9.8 93.3 19 90 57.04 — 3.92 953.60 8.09 • I B.C.. . . 3IM3 11.0 53.5 36.0 48.5 1.0 19 9) 36.00 +3.49 N Venn. . . . 8.F. 4.3 17.0 99.5 42.0 54.5 :•.,•.'.; —4.6.1 2 53.46 8.05 as II. r. . . . 31543 30.7 43.0 55. 5 8.0 90.5 19 98 55.64 +5.85 • \>nu« . . . SI. 94.4 37.0 49.5 1.5 H.3 19 31 49.34 — 5.93 2 53.80 8.06 87 H.C. . . . 31543 13.8 93.0 38.5 51.0 3.9 19 34 38.50 +9.91J • Veuu. . . . 8.F. 7.5 30.0 32.5 45.0 57.5 13 37 32.50 —5.87 +9 51.00 — 8.061 Remarks, Somcwlml har.y nil the morning. Ptnr dim nncl plnnct not sharp. a Rorordeil 2.7i. at v I Daylight. Results. h. m. s. Mean . . . Fourteen tranriu ... 12 1 38.98 h. m. «. Corrtcti-m fnr chronometer at 19 9 ... — 48.64 h. m. m. «. Rev. 9 51.54 .... —7.914 A f at 1-J o Pantiagn sid. time 8. F. . . . . 0.15 h. m. f. 19 0 50.34 JANUARY 18, 1851. j Object. Chronometer time of transit. Meanofwiic.. Mlcr. Planet— Star. Bar. Thermometer*. A. B. D. E. An. A j. Air. Wet. .. a. - - b. m. a. Rer. m. a. Rev. Incite*. • • ,. Venn. . . . H.F. 38.5 50.8 3.0 15.5 98.0 11 31 3.16 + 14.901 97.918 63.0 57.4 8 II. r. . . . 31791 39.3 45.0 37.5 10.0 11 3345.03 5.91 —341.87 +8.981 3m 4 11 . . . B.F. II. r. . . . 31791 . . . B.F. 44.S 30.6 56.8 38.5 43.3 9.5 51.0 65.5 99.0 8.0 34.3 16.0 90.5 11 36 9.49 11 3851.04 11 40 55.58 14.641 5.66 14.441 3 41. 63 8. £81 ThT ait. 68*. 0 Bar. red to39-K. 97.801 f II. r. . . . 31791 94.6 37.0 49.5 1.8 11 43 31. 00 5.401 9 41.49 9.04 7 VMM . . . n.F. 90.8 33.5 46.0 58.3 10.8 11 40 45.88 14.10 1 II •'. . . . 317V1 • • 14.5 97.0 39.0 51 .4 11 48 96.78 5. 1SJ 9 40.90 8.941 9, Vrnui . . . f .F. 4.0 16.5 98.8 41.5 53.5 11 51 98.89 13.801 10 H.C. . . . 31791 44.. '> 47.3 9.5 93.0 34.5 11 M 9.56 4.771 9 40.74 9.03 Mr Vemu . . 33.6 48.0 88.3 11.0 *l.5 11 56 58.48 13.93 19 . . 31791 13.5 96.0 38.8 81.0 11 5938.50 +4.30 -9 40.02 +8.93 AT SANTIAGO DE CHILE. 267 .TAXl'ARY 18, 1851— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. B:ir. Thermometers. A. B. C. D. E. ' A a. A. or is., which at the commencement, was recorded as below it. a Very good measures. c Planet certainly south of the preceding star. 4 Planet's south limb and the preceding star precisely d Daylight. Rejected this pair. on the same parallel. Diameter of Venus from a mean of 10 measures, by daylight, at 13*. 15m. sid. time, 3.059 rev. Corrected diameter, 38". 00. Results. Mean . . Eight Uansiu Correction for chronometer at 12 20 . h. m. s. m. s. Rev. / // 12 19 35 38 — 6 38.10 . , . , .{.8.966 . . . =2 54.75 h. s. 8. h. m. s. it 12 20 . . . . -49.50 Santiago sid. time S. F . . 12 18 45.78 h. m. A p at 12 22 0.14 JANUARY US, 1851. Cirri prevented the morning observations. 270 INFERIOR CONJUNCTION OF VENUS, 1850-61, JANUARY SO, 1851. Objtci. I'hrunomrtrr lime of tr i Mranofwirr.. Micr. Planet— Sur. Bar. . .. ••: a* • • A. B. C. D. i:. A<. AJ. Air. «. 1, >. l. IP li. in. a. Rev. m. >. •er. >Mta. • • 1 Vemu . . . 8.P. 3.5 15.7 88.0 40.4 53.9 11 5998.16 — 6.021 H • - 61.7 56.3 3 4 1 II. C. . . . 39496 Venn. . . . 8.P. H. C. . . . 3SM9» Venn . . . 8.P. 31.0 93.8 40.0 43.7 41.5 52.5 56.0 20.5 49.0 4.5 8.5 32.5 1.3 17.5 81.2 45.0 13.6 19 059,38 13 3 56.08 IS 5 90.99 13 7 48.84 +11.061 — 6.331 +10.79 -6.70t -1 24.23 1 24.13 -17.09 17.121 TIlT. all. Bar. rod. 97.831 6 II. C. . . . 324S6 • • 0.0 13.5 35.0 37.9 13 9 19.43 + 10.491 1 93.59 17.13 7 Venui . . . B.F. 87.3 39.6 53.3 4.6 17.5 12 11 53.26 -7.19J 8 II. C. . . . 32498 80.5 3.0 15.5 27.8 40.5 19 13 15.46 +10.03} 1 23.20 17.93 9 Venuj . . . B.F. 13.3 S5.7 38.0 50.6 3.3 1.' i:. 38.16 - 7.55 10 II. C. . . . 31436 38.0 48.5 1.0 13.5 20.0 12 17 1.00 + 9.61 1 23.84 17.16 11 14 Venni . . . P.P. II. C. . . . 32436 27.5 49.5 5.5 40.0 2.5 18.4 53.5 i.->.o 30.5 5.0 27.3 43.3 17.5 40.0 55.6 13 19 52.50 1-2 31 14.86 12 33 30.66 — 8.03} + »."t - 8.47J 1 23.36 17.91 Venus . . . 8.F. 11 H. C. . . . 334C6 27.5 40.0 53.5 5.0 17.5 19 94 53.50 + 8.791 1 21.84 17.27 15 \>nu. . . . 8.F. 55.8 8.0 20.5 33.0 45.5 12 37 90.59 — 8.96 16 II. C. . . . 32438 17.0 29.5 42.0 54.6 7.0 li 98 42.09 + 8.871 1 91.50 17.23J 17 \>nm . . . B.F. 29.3 49.0 S4.S 7.0 19.5 12 31 54.46 — 9.87 18 II. C. . . 33498 50.0 9.5 15.0 87.5 40.0 19 33 15.00 + 7.551 1 20.54 17.421 19 Venu* . . . B.F. 34.0 48.3 56.8 11.9 12 36 46.33 —10.391 90 » B.C. . . . 32196 • • 54.3 8.S 19.2 31.6 19 38 6.73 + 7.04 1 20.40 17.43} 21 Venu« . . . B.F. 10.6 23.4 38.0 48.3 0.6 19 40 35.78 —10.91 • H. C. . . . 33496 43.5 58.0 8.5 21.0 12 41 56.01 + 6.53 1 90.93 17.43 83 Vrnui . . . 8.F. 26.5 39.0 51.5 4.0 17.0 1344 51.60 - 8.15 i H. C. . . . 32498 48.7 11.9 83.5 38.0 12 46 11.11 + 9.33 I 19.51 17.47 VMMU . . . B.F. ».S 12.0 , 49.5 19 48 94.47 — 8.931 M H. C. . . . 33438 18.5 31.0 43.5 55.8 8.2 19 49 43.40 + 8.56 1 18.93 17.491 •- VMIU. . . . S.F. 19.5 33.0 44.5 58.9 9.3 13 51 44.44 — 9.58 . H. C. . . . 32408 37.0 4».S 8.8 15.2 97.8 19 53 9.48 + 8.01 1 18.03 17.59 • Vrnm . . . B.F. . 38.0 48.3 0.8 13.5 19 56 48.41 —10.17 . II. C. . . . 3*428 • • 54.0 6.5 19.1 31.6 19 58 6.56 + '.45J —1 18.15 -17.691 Remarks. No very niMactory obiervatloiu were made during thin morning. The planet wu very inurli blurrril mid During >l commencement, and later, wlirn ptet'jr »li»rp and well defined, had a wavy motion, whirh rondrrrd mcaiurei quemioiuhlc. a Tolerably iharp. » Recorded 53. 3>. at wire II. c Cirri. Diameter of Venui from a mean or 10 meuurei at 13*. 10m. tid. lime, 2.040 rev. Corrected diametur 37". 59. . PhVen Iraiulu . . ].. n . Cot rectkm tot chronometer at 13 38 fin .•/.'••. ii. m. •. H I I. II — 50.91 -181.30 . . . . Santiago lid. lime 8. P. Kev. — 17.3W ., n n h. in. i. 14 87 1 LOT A f H U 98 0,36 AT SANTIAGO DE CHILE. 271 JANUARY 27, 1851. i Chronometer time of transit. Micr. Phinct— Star. Bar. Thermometers. Object. A. B. C. D. i E. ' An. Ai. Air. Wet. s £ 6 s. s. 8. B. g. h. m. s. Rev. m. 8. Rev. Inches. 0 • la Venus . . . S.F. 18.8 31.3 43.8 56.3 8.8 12 9 43.80 +6.35 27.8S8 58.5 54.5 3 H. C. . . . 33706 35.0 47.5 0.0 12.0 25.0 12 8 59.90 —2.56 —6 16.10 +8.91 j Thcr. att. 36 Venus . . . S.F. 4.5 17.5 30.3 42.7 54.7 12 11 29.94 +5.44 67°. 4 4 B.C.. . . 3-1706 20.0 32.8 45.3 57.6 10.3 12 17 45.18 —3.38 6 15.24 8.82 Bar. red. to 3-2° F. 27.793 5c Venus . . . S.F. 19.5 32.0 44.5 57.0 9.5 12 19 44.50 +4.48 6 II. C. . . . 32706 33.5 46.0 58.6 11.0 93.5 12 35 58.52 —4.224 6 14.02 8.704 Td Venus . . . S.F. S6.8 9.2 21.8 34.3 46.8 12 28 21.78 +3.34 8 II. C. . . . 32706 9.8 22.5 35.0 47.5 0.0 12 34 34.96 —5.35 6 13-. 18 8.59 M Venus . . . S.F. 58.3 8.8 21.3 33.7 46.3 12 37 21.28 +2.51 10 H. C. . . . 32706 8.5 21.2 33.6 46.0 58.5 13 43 33.56 -6.03 6 12.28 8.54 11 Venus . . . S.F. 17.8 30.5 49.8 55.5 8.0 13 45 42.92 +1.27 12 H. C. . . . 32706 29.0 41.8 54.3 6.5 19.0 13 51 54.10 —7.124 6 11.18 8.394 13 Venus . . . S.F. . . 5.2 17.6 30.0 42.5 13 54 17.58 2.194 14 H. C. . . . 32706 3.5 15.5 38.0 40.4 52.9 13 0 27.86 10.54 6 10.23 8.344 15 1 Venus. . . S.F. 9.4 22.0 34.5 46.8 S9.5 13 2 34.44 3.844 16/ H. C. 32708 18.5 31.0 43.5 56.0 8.5 13 8 43.50 —12.12 —6 9.06 +8.274 Remarks. a Much blurred and unsteady. * Better, c Clean. d Sharp and good measures. e Beautiful. / Micrometer recorded 11. 12 rev. Diameter of Vcnui at 13*. 1.1m. from a mean of 10 measures, 1.954 rev. Corrected diameter, 35 '.83. Results. b. m. B. Mean . . . Eight transiu . . . . 12 32 47.03 h. in. f. Correction for chronometer at 12 33 . m. ». Rev. — 6 12.67 .... +8.572 . . — 51 .07 Santiago nid. time S. F h. m. " A pat 12 35 0.13 i it = 2 47.07 h. m. s. . . 12 31 55.96 JANUARY it8, 1891. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A* Air. Wet. B. l. B. ,. s. h. m. s. Rev. m. s. Rev. Inches. a • 1 3 Venus . . . S.F. H. C. . . . 32706 45.4 10.5 57.7 33.0 10.3 Oi.S 22.6 48.3 35.5 0.5 12 4 10.30 12 7 35.54 +5.87 10.544 —3 23.24 —4.674 28.043 62.2 55.6 3 4 5 Venus . . . S.F. H. C. . . . 32706 Venus . . . S.F. 11.5 36.0 28.5 24.1 48.5 41.2 36.6 1.0 53.6 39.0 13.5 6.0 1.5 26.0 18.8 12 9 36.54 12 13 1.00 13 14 53.62 5.90 10.66 5.43 3 24.46 4.76 Ther. att. 68° .5 Oar. red. to 32° F. 27.935 • II. C. . . . 32706 53.5 5.0 17.5 30.6 42.5 12 18 17.C2 10.25 3 24.00 4.82 7 Venus . . . S.F. 58.5 11.0 23.5 36.0 48.5 13 20 23.50 4.97 8 II. C. . . . 32708 21.5 34.3 46.5 59.0 11.9 12 23 46.62 +9.804 —323.12 —4.834 INTERIOR CONJUNCTION OF VENUS, 1850-61, .1 \\CART »», 1 SSI Continued. i ; Object. rhronmnrtrr nmr of transit. >: Mirr. rianet— Simr. Bar. A. B. C. D. E. A«. &l. Air. Wet. h. m. t. B-v. m. *. Rev. Inches. • • • VCMW. . . S.F 57.9 •.8 99.3 34.8 47.0 199699.18 +4.97 •. . : u B. C. . . . 3B70B 90.0 39.5 45.0 57. S 10.0 199941.00 9.18J —393.89 —4.911 11 18 U VCWH . . . e.r. II. a . . . 39706 Venus . . . B.F. 93.0 45.0 0.5 35.5 57.5 13.0 48.0 10.0 95.5 0.5 22.4 38.0 13.0 35.0 50.3 13 31 4H.OO 12 35 9.98 13 37 95.46 3.CI1 8.57 9.931 3 21. OS 4.95J riwr. in. 68V5 to 33" F. II M 14 H. C. . . . M706 91.5 34.0 46.5 59.0 11.5 19 40 46.50 7.93 391.04 4.98J IS a Vena.. . . 8.F. 91.5 34.0 48.5 59.0 11.5 13 43 46.50 9.38 If H. C. . . . 32706 49.0 54.5 7.0 19.5 32.0 1246 7.00 7.37 390.50 4.99 17 Ve«us . . . 8.F. 33.4 46.0 58.5 11.0 93.5 19 47 58.48 1.56 18 H. C. . . . 32706 53.5 6.0 18.5 30.5 43.5 19 51 18.40 6.58 3 19.93 5.03 19 Venus . . . 8.F. 9.0 14.6 37.9 39.8 59.3 13 53 37.18 0.73 90 H.C. . . . 337US 91.0 34.0 46.3 58.8 11.5 12 56 46.33 5.83 3 19.14 5.10 91 Veniu . . . B.F. 58.5 11.3 93.6 36.0 48.7 13 59 33.63 7.94 U B.C. . . . 3J706 17.5 30.0 43.5 55.0 7.5 13 9 43.50 13.38 3 18.88 5.14 931 Vcnu . . . S.F. 11.3 94.0 36.5 49.0 1.5 13 5 36.40 5.39 H B.C. . . . 33706 35.5 • • 1.0 13.3 96.0 13 9 0.83 10.G6J 3 24.41 5.27J • Venn* . . . 8.F. 11.9 S4.0 36.5 49.0 1.5 13 13 36.44 4.93 95 H. C. . . . 38706 98.0 40.5 53.0 6.0 18.5 13 15 53.30 -:- •-'. 3 16.76 5.30, 97 Vrans . . . 8.F. 7.0 19.5 32.0 44.4 56.8 13 1831.94 3.25 98 H.C. . . . 33706 93.0 35.8 48.0 0.5 13.0 ' 1331 48.06 +8.64 —3 16.13 —5.39 Remarks. This has not proved a very good morning, as the planet was fining, and the cufps never sharp. a M Mumre* a little close. I' There ha> evidently been a slip in the instrument, and this observation hail been rejected. Diameter of Vrnu« from a mean of 10 measures at 13A. 30m. sid. time, 1 .991 rev. Corrected diameter 36". 60. Oornction for Thiltren trai h. in. • ' Results. h. m. f. iJ 3821.00 — 51.3 m. >. Rev. — 3 21.07 .... —5.045 h. m. A f at 13 39 . Santiago old time 8. F. // . 0.07 h. m. -. 19 37 33.58 From the 99th of January to the 3d of February, both days Included, It was cloudy ai the hours lor observing Venus. I I UK! MM I. i- .1. Also cluudy. AT SANTIAGO DE CHILE. 273 FEBRUARY 5, 1S51. No. for refen-iii-i1. Object. Chronometer time of transit. VIean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E-- A a. Ai. Air. Wet. s. s. s. s. s. h. m. s. Rev. s. i Rev. Inches. • 1 a Venus . . . 8 F. . 49.5 . 12 21 49.50 +12. S3 28.065 60.9 56.7 2 U. C. . . . 33593 . . 38.8 . . . . 12 23 38.80 10.05 —39.30 +2.88 3 4 5 45.0 83.5 57.0 13 23 45.00 13 24 23.50 12 25 57.00 13.131 10.21J l-3.99i 38.50 3.93 Ther. att. 65°. 4 Bar. red. to 32s F. 27.965 H.C. . . . 33598 Venus . . . S.F. 44.5 6 H.C. . . . 33598 • • 23.0 35.5 • • • • 12 28 35.50 10.16 38.50 3.834 7 8 96 10 11 Venun . . . g.F. H.C. . . . 33598 43.7 32.0 7.0 45.0 29.3 56.0 31.5 19.5 57.5 41.7 • • ' ' 12 27 56.10 12.90 122831.50 10. Hi 12 30 19.50 12. F2 12 30 57.50 9.96J 123341.75 12.60J 36.40 38.00 2.784 2.854 Venus . . . S.F. II. C. 33598 Venus . . . S.F. 12 H.C. . . . 33598 6.C 19.0 . . . . 13 33 19.05 9.84 37.30 2.764 13 Venus . . . N.F. . . 18.0 30.5 12 35 30.50 14.314 14 II. U. . . . 33598 • • 55.0 8.0 . . 13 36 7.7i 9.72 37.25 4.594 lie Venus . . . S.F. . 7.5 30.1 • • • • 13 38 20.05 12.174 16 II. C. . . . 33598 • • 44.5 57.0 . . 14 38 57.00 9.504 36.95 3.67 17 Venus . . . N.P. . 44.3 58.5 . 12 40 56.65 13.72 18 H. C. . . . 33598 • • 30.5 33.0 . . 12 41 33.00 9.30 36.35 4.53 19 d Venus . . . S.F. f t 45.8 58.3 .... | 13 44 58.35 11.504 30 H.C. . . . 33598 • • 31.5 34.0 • • • • 13 45 34.00 8.76 35.75 3.744 n Venus . . . N.F. . . 58.5 11.0 . f t f 13 47 11.00 13.034 83 II. C. . . . 33598 • • 34.2 46.5 • • 13 47 46.60 8.564 35.60 4.47 23 Venu. . . . S.F. . . 53.5 6.0 t . . 13 50 6.00 11.63 24 H.C. . . . 33598 38.5 41.0 • • • • 13 50 41.00 9.00 35.00 2.63 35 Venut . . . N.F. , . 6.5 18.8 t . 12 52 18.90 13.164 26 H.C. . . . 33598 • • 41.3 53.5 • • • • 13 52 53.65 8.75 34.75 4.414 87 Venus . . . S.F. . 21.3 39.6 . . 12 51 36.70 11.12 38 H.C. . . . 33598 • • 58.8 11.2 • • • • 1355 11.25 8.494 34.55 3.624 M Venus . . . N.F. t , 46.0 58.S f 13 56 58.50 13.57 30 H.C. . . . 33598 • • 30.1 33.5 • • . . 13 67 32.55 8.18 34.05 4.39 31 c Venus . . . S.F. . 3.6 16.0 ^ . 13 59 16.05 10.444 33 33 34 H.C. . . . 33598 Venus . . . N.F. • • 37.5 36.7 10.5 50.0 49.0 33.5 • • • • 12 59 50.00 13 1 49.10 13 2 32.75 7.90 12.01 7.634 33.95 33.65 3.544 4.374 H.C. . . . 33598 . . 35/ Venus . . . S.F. t 43.8 55.3 13 3 55.30 9.93 36 U. C. . . . 33598 16.0 38.2 . . 13 4 28.35 7.404 33.05 3.514 37 Venus . . . N.F. . , 53.8 6.2 • • • . 13 7 6.25 11.234 38 H. C. . . . 33598 • • 36.S 39.0 .'.! ..", . . 13 7 39.00 6.93 32.75 4.304 39 Venus . . . B.F. 46.0 58.5 . . 13 9 58.50 9. 054 40 H.C. . • . 33598 18.0 30.5 • • • • 13 10 30 50 6.614 33.00 1 3.45 41 Venus . . . N.F. f f 9.5 21.8 . 13 12 21.90 10.464 42 II. C. . . . 33598 41.5 53 8 6.2 . . 13 12 :,:: 6.51 31.94 4.25J 43 Venn* . . . 8.F. . 37.5 . . . . 13 15 37.50 8.32 4) 11. C. . . . 33598 • • 56.5 9.0 . . • • 13 16 9.00 5.86 31.50 2.46 45/r Venus . . . N.F. . 51.8 4.5 . . 13 18 4.40 9.764 46 H.C. . . . 33598 • • 23.7 36.3 • • • • 13 18 36.35 +5.554 —31.85 +4.21 35 274 INFERIOR CONJUNCTION OF VENUS, 1850-51, KKBRrARY 5, 1851— CoMttnnrd. 1 OHM {•hronoroeirr lime ot traiwU. Meuofwlre*. Micr. Planet— 9ur. Bar. * nurniomrnn. A. B. C. D. E. Ao. 61. Air. \v. • |. . • |__|._- • • 1 KCT. HW« 1 IK IH N n Vr»u« . . . B.P. • . si.s 4.8 . . 13 91 4.80 +7.64 98.065 60.9 - H. C. . . . 33M8 35.0 13 93 3S.9S 5.97 —30.35 +9.37 Th»r. utt. •« V«IIM . . . NT. t t M.6 97.0 . t 13 94 97.05 9.18 «5'.4 10 B.C. . . . 335M 44 6 57.0 13 94 57.05 5.00 30.00 4.19 R»r. rrH. 10 »J- F. 97.965 sit Vrnui . . . S.P. . . l!.l 94.8 . . . . 13 98 94.90 6.97 • II. C. . . .33398 • • 4-1.0 54.5 • • • • 13 28 54.50 4.64 29.60 9.33 S3 Venn. . . . N.P. . 31 5 48 8 . . 13 31 46.90 7.97 M II C. . . . 33198 • • • • 18.0 • • • • 13 3} 16.00 3.80 99.10 4.17 55* Vtnm . . . 8.F. 7.5 90.0 13 35 90.00 5.58 M II. C . . . 33598 . . X.O 46.5 1.0 . . 13 33 48.50 3.35 98.50 9.93 17 Vrnu. . . . M.F. . 98.5 38.1 . 13 38 38.95 7. M| • II. C. . . . 333*8 • • • • 7.0 19.5 • • 13 39 7.00 3.95 98.05 3.97J • Vrnu. . . .B.P. . . 56.9 8.5 . g , 13 -11 8.55 5.63 W II. C. . . . 33X8 • • • • 33.5 48.0 • • 13 41 30. M 3.3! 97.95 9.98 •1 VCTM . . . N.F. . 34.3 48.5 . . 13 43 46.65 6.68 • II < . . . . 33J98 • • • • 14.0 96.5 • • 13 44 14.00 9.74 97 35 3.84 a Venn. . . . 8.F. 33.3 47.5 . 13 45 47.65 4.83 M II. C. . . . 33S98 . . . . 14.8 97.9 13 46 14.65 9.61) 27.00 2.211 l • Veimi ... N.F. . . 90.5 39.8 . . . 13 48 32.90 6.04J « B.C. . . . 3X88 • • • • 50.6 19.0 13 48 59.55 9.11 96.65 3.931 C7 Venn. . . . B.P. g 47.0 58.5 g 13 51 59.50 3.74 n N < ... 33588 • • • • 95.5 37.8 • • 13 59 35.40 1.601 95.90 9.13J • Vrnui . . . N.F. . 8.5 91.0 . 1354 31.00 5.16 70 II i . . . . 33i9s • • • • 46.8 • • 13 54 46.80 1.261 95.80 3.891 71 Vcotu . . . 8.P. 34.5 47.0 13 58 47.00 9.98 ilr... 33598 . . 19.8 95.0 . . 13 57 19.65 0.87 95.65 9.11 \Vnu« . . . N.P. 39.8 14 0 59.25 ; -4 . . SON • • 17.9 14 1 17. -.HI t.WOJ 0.97 94.95 3.81} Venn. . . . P.P. . . 51.5 4.0 . . . 14 3 4.00 9.91 98.063 60.8 56.6 T» H.C. . . . 31-.;;- . . • • 98.5 41.0 • . 14 3 98.50 7.87 94.50 9.07 Vetmi . . . N.F. . . £8.8 n. n , , , . 14 5 11.15 10.94 Thrr.mt 65'. 0 78 M. C. . . . 33588 g g f 3S.3 47.8 14 5 35.30 6.48 94.15 3.76 Bar. rril. toWF. •n Vrnu. . . . B P. . . 0.3 18.5 * • , 14 7 18.65 8.99 (0 H.C. . . . .'C.-.9S • • • • 49.5 55.0 • • 14 7 49.50 -1-6.97 -93.85 +2.09 Remarks. The rmrly ntcaram of thin mornhif are not very food, l».|h olijecw hring blurred mid nnitmdy. • Much lilurml and iin.li-«ily. , Prctly fair. * A lilllr iH'ttir. € Mttrn Marrrd »r>in. t Alwnwteljr nonh and Mxnh limbu, rommrnciii| n .Hi UM M*rnih dlAVrrnUal mra>urc. i r of Venui from a mr.in ,,f 10 mewum, at 14*. 15m. >ld. time, 1 .751 r. .1 iliameler, 31". 83. ; •- f limnl. A Rliarp and g.iod. /.'. •'- Mran B. P. Mr** N. P. Twenty thru tiaiuiu li. m. -. 13 tt 18.78 13 18 58.6} l. — 39.44 -31.13 Rev. + 9.497 + 4.189 -0 48.67 -\ 21.64 AT SANTIAGO DE CHILE. 275 h. in. Correction for chronometer at 13 & Correction for chronometer at 1^ 20 A N. S. limbs ink-r. in rev Variation of declination in llm. 41*. Corr. for diaoi. of micr. wires Observed N. S. diameter .... FEBRUARY 5, 1851 -Continued. Results — Continued. £. h. ra. s. . . — 5-l.ll--! . . 13 7 24 77 . . —51.02 . . . 13 19 5 63 Interval 11 40 66 ti h. in. 1.692 = 32.97 A p at 13 8 o 03 + 1.73 A em 13 19 . . . o or> — 3.20 32.50 FEBRUARY 6, 1851. i Chronometer time of transit. Planet— Star. Thermometers s M f " Micr. Bar. 1 s Object. A. B. C. D. E. A a. A* Air. Wet. A i h. m. s. Rev. s. Rev. Inches. O * la Venus . . . 8 F. 4 6 12 16 4.60 • i " • 28.025 65.0 59.2 2 H.C. . . . 33748 . • . . 48.0 . . . . 12 16 48.00 T****** 9.33 —43.40 +5.89 Pher. ntt. 3a Venus . . . N.F. . . 7.5 30.3 . . 13 1820.10 17.01 68°. 3 4 II. 0. . . . 33748 • • 50.7 3.5 . . . . 12 19 3.35 9.20 43.25 7.61 Oar. red. to 32° F. 27.917 6« Venus . . . S.F. . . 30.5 33.0 . . 13 20 33.00 15.10 6 H.C. . . . 33748 • • 3.2 15.6 • • • • 13 31 15.65 9.321 42.65 5.871 7a Venus . . . N.F. . t 15.8 38.3 f t 13 32 38.25 16.75 8 H.C. ... 33748 • • 58.3 10.7 13 33 10.70 8.99 42.45 7.76 9 Venus . . . S.F. . t 38.0 50.5 . 12 34 50.50 14.79 10 II. C. . . . 33748 • • 19.8 32.5 • . • • 13 25 32.40 8.87 41.90 5.92 116 Venus . . .N.F. . . 40.8 53.0 . . 12 28 53.15 16.46 12 H. C. . . . 33748 • • 33.4 • • 47.3 • • 13 29 34.85 8.68 41.70 7.78 13 Venus . . . S.F. . 57.4 9.8 t 12 31 9.85 14.38 11 38.5 51.0 12 31 51.00 8,63 41 15 5 76 15 Venus . . . N.F. 30.7 33.0 12 34 33.10 15.901 16 H.C. . . . 33748 1.2 13.6 • • • • 13 35 13.65 8.18 40.55 7.721 17 Venus . . . S.F. , f 57.0 9.5 f f 12 38 9.50 13.71 18 H.C. . . . 33748 • • 37.0 49.5 • • • • 12 38 49.50 7.97 40.00 5.74 19 c Venus . . . N.F. r t 25.3 37.8 . . 12 43 37.80 15.09 30 H.C. . . . 33748 5.0 17.5 • . • • 13 43 17.50 7.55 39.70 7.51 21 Venus . . . S.F. t f 39.8 . . 12 45 29.80 12.86 32 H. C. . . . 33748 • • 56.5 8.6 • . • . 12 46 8.80 7.17 39.00 5.69 H Venus . . . N.F. f 8.4 30.8 . 13 51 20.85 14.20 34 H.C. . . . 33748 43.5 58.5 • • 12 51 58.75 6.81 37.90 7.39 35 Venus . . . S.F. t , 35.7 48.0 , f m t 12 53 48.10 12 051 36 H.I;. . . . 33748 13.5 36.0 • • 1254 26.00 6.45 37.90 5.601 27 Venus . . . N.F. . . 0.2 13.6 . . . , 12 56 12.65 13.57} 38 H.C. . . . 33748 ' ' 37.8 50.0 • • 1356 50.15 6.18 37 50 7.391 39 Venus . . . S.F. , 52.0 4.5 t f t 13 0 4.50 11.34 30 H.C. . . . 33748 • • 38.5 41.3 13 0 41.15 5.79 36.65 5.55 31 Venus . . . N.F. . . 35.2 37.6 . 13 2 37.65 12.801 33 H.C. . . . 33748 • • 1.5 14.3 . . . . 13 3 14.15 5.491 36.50 7.31 33 J WHIM . . . S.F. m 54.5 7.0 . . 13 5 7.00 W.T4 31 II. V. . . . 33748 • • 30.5 43.0 13 5 43.00 +5.101 —33.00 +5.631 27« INFERIOR CONJUNCTION OF VENCS, 1850-51, FKHRIARY a. 1851-ComUmMFd. Chrnnomclrr Um« of unn-ii. V Mlrr I'lann— SIM. Thernoinrtera | MtMb A. B. 0. E. • micr. A«. A i. Air. wm. h 111 • 1. 0, RCT. | ., , , • • .• 11. in. m* )$ Vrnu. N.F. . . 40.5 53.0 13 7 53.00 + 11.99 28.025 65.0 59.2 • . . 33748 . . 18.5 98.8 . . . 13 898.9* 4.69 -35.M +7.30 Th*r. lilt. 17 Vrnii. . . . S.F. . . 57.5 9.5 . . . . 13 19 9.75 977 68". 3 38 II. C. . . . 33748 . . 34.5 44.8 13 13 44.90 4.94 •m IK R M Bar. ri-tt. 35.15 5.53 to:|l 27.917 Vrnu« N.F. . . 53.9 5.5 . . 13 14 5.00 11.13 j* II i-. . . . :srM-< . . 98.0 40.6 . . 13 14 40.55 3.85 34.95 7.98 41 Vfniw . . . 8.P. . . 9.3 91.8 13 16 91.70 -.". 41 B.C. . . . 33718 . . . . 58.9 13 16 56.30 3.434 34.50 5.46 43 V.nu. . . . N.F. . . 34.9 46.7 13 18 46.70 .-»«-f 10.331 44 . . . 33748 . . 8.3 90.5 • • 13 19 30.65 3.21 33.95 7.121 « \>nu« . . . 8.F. . . . 94.6 , , 1391 34.60 8.39 46 II C. . . . 33748 . . 58.5 . . 13 31 58.50 9.96t 33.90 5.431 4T V«IM . . . N.F. . . 94.3 35.8 l.T 27 36. M 8.961 40 II r . . 33748 . . 57.0 9.5 . . 13 28 9.50 1.84 33.70 7. IS! 49 VFIIIM . . . B.F. . . 36.0 48.5 . . l:i 29 48.50 6.78 SO II. C. . . 33746 . . 8.5 91.0 • • 133091.00 1.45 33.50 5.33 SI Vwiui . . . N.F. . . 8.3 18.8 t t t 13 33 18. PO 8.90 31 II ..... 33748 . . 38.5 50.8 . . 13 32 50.90 1.06 33.10 7.14 • Vrnuf . . . S.F. . . 59.3 11.8 . . . . 13 35 11. (0 12.29J M II c'. . . . 33748 . . 31.0 43.5 56.0 13 35 43.50 7.07 31.70 5.321 • \nm . . . N.F. . . 35.3 47.5 . t 13 39 47.65 12.40 • . . 33746 . . 8.0 18.3 ' I;MO 18.40 5.55} 30.75 6.841 Vrnu« . . . S.F. . . 33.5 46.0 10.49 M II .'. . . . 3J748 . . 4.5 16.6 • • . . 13 4-J 16.99 5.97 30.90 5.29 . Venn* . . . N.F. . . 3J.2 : 11 ji jj r.ii 11.93 M . . . 3374* . . 15.3 13 44 15.15 5.01 30.55 6.93 •1 Vruw. . . 8.F. . . 1.5 13.9 13 45 13.95 t • • 11 I'. . . . 3374S . . 31.5 44.0 . . 13 45 44.00 4.701 30.05 5.181 Ve»M . . . N.F. . . 1.0 13.5 . . 13 47 13.50 11.56 , II r. . . . 3374* . . 31.0 43.5 58.0 • • 13 47 43.50 4.69| 30.00 6.861 • . . 59.5 11.9 , . 13 51 11.95 8.9*1 « II c. . . . 337W . . S9.0 41.5 • • • • 1351 41.50 3.78 ."' 5.1*1 •7 Vr.u. . . . N.F. . . 97.9 40.3 t . 13 S3 40.35 10.48 • II C. . . . 33748 . . S7.0 9.9 • • . . 13 54 9.35 3.61 39.00 6.87 • .... B.F. . . 97.9 39.7 t t . 13 to 39.70 8.71 7»« II I'. . . . 33740 . . 66.0 8.6 • • • • 13 SC 8.55 3.59 98.85 5.19 71 Vraiu . . . N.F. . . 93 5 35.8 13 57 35.90 . • . . 33748 . . w.o 4.S . . . . 1358 4.50 9.S6 6.69 71 VMM . . . B.F. . . 57.3 9.8 . . 14 9 9.80 7.90 74 II. r. . . . :tf7i- . . 37.5 • • • • 14 9 37.50 9.19 97.70 5.08 »/ \>.n. . . . N.F. . . 8.3 14.8 . . I . . 14 4 14.80 8.89 7* II r. . . . 3i7»« . . . . . 14 4 43.50 3.13 97.70 6.76 77 Vr«M . . . H r. . . St.O 11.5 14 6 11.50 6.54 •m . . . xr.4' . . 36.8 • • • • 14 6 38.80 1.471 97.30 5.06} 7* VMM. . . . N F. 91.0 t . H 831.00 8.99J M . . 3J7I- 4S.O • • • • 14 848.00 41.47 -97.00 +8.8»1 AT SANTIAGO DE CHILE. 2YT FEBRUARY 6, 1831— Continued. Chronometer time of transit. Planet— Star. Thermometers, I ., ,. . M' Bar. •| Object. A. B. C. D. E. A a. A I. Air. Wet. h i s. 8. s. s. s. li. m. s. Key. s. Rev. Inches. • • 81 Venus . . . S.F. . , 58.3 g t r § 14 9 58.30 +6.25 28.030 63.4 58.5 83 H. C. . . . 33748 . . . . 25.5 . . 14 10 25.50 1.24 —37.20 +5.01 Thcr. an. 83 Venus . . . N.F. . . 34.8 37.3 f H 11 37.30 7.77 66°.6 84 g H C. . . . 33748 . . 51.5 4.0 . . U 12 4.00 0.91 26.70 6.83 Bar. red. to 32° F. 27.937 85 39 8 14 13 39.80 5.63 86A U. C. . . . 33748 • • • • 6.5 • • • • 14 14 6.50 0.591 26.70 5.03} Venus . , N F 16.0 28.6 14 15 28.55 7.13 88 H. C. . . . 33748 • • 43.0 54.6 • • 14 15 54.55 0.35 26. fll) 6.78 I > Venus . . . 8.P. . 10.7 23.0 . 14 17 23.10 11.69 90 B.C. . . . 33748 • • 49.0 1.5 • • 14 17 49.00 6.73} 25.90 4.95} 91 Venus . . . N.F. . . 11.0 23.4 . m ( 14 19 23 45 13.30 92 II. C. . . . 33748 ' ' 48.5 1.0 14 20 48.50 6.551 25.05 6.74} 93 Venus . . . S.F. 10.5 14 22 10.50 11.65} 91 II. C. . . . 337-ld 36.0 1 1 32 36.00 6.69 25.50 4.96} 95 Venus . . . N.F. 55.0 14 23 55.00 13.13 • 96 H.C. . . . 33748 19.5 14 34 19.50 6.47 24.50 6.66 97 Venus . . . S.F. 33.6 33.0 14 35 36.05 11.63| 98 H.C. . . . 33748 • ' • • 0.5 13.5 • • 14 E6 0.75 6.68 24.70 4.94} M Venus . . . N.F. , . . . 18.5 30.8 14 28 18.40 13.33} 100 < H. C. . . . 33748 . . 43.0 55.0 . 14 28 42.75 +6.75 —24.35 +6.58} Remarks. The morning was extremely fine from I3A. 10m.; and a« the images were distinct and the motion Heady, all the measures made lifter that timr may be considered good. a Blurred and unsteady. b Tolerably »harp. c Sharp and good. d Very sharp, i Recorded 9. 6>. at wire C. / Daylight measures. g Recorded 3.0>. at wire C. K Recorded 7.3i. at wire C. i Recorded 53. Oi. andS.Ot. at wires C and D. Diameter of the planet from a mean of 10 measures, at MA. 33m. sid. lime, 1.704 rev. Corrected diameter, 31". 01. Results. h. m. v. s. Rev. / // Mean 8. F. . . Twenty-five transits . . 13 26 26.95 — 33.23 . . . . +5.379 .... =1 44.64 Mean N. F. . . Twenty-five transits . . 13 30 50.60 — 32.77 . . . . +7.122 .... =2 18.81 h. m. 8. h. m. s. Correction for chronometer at 13 26 . . . . —54.05 Santiago aid. time for S.F. . . . . 13 25 32.90 Correction for chronometer at 13 31 . . . . —54.05 Santiago sid. time for N. F. . . . . . 13 29 56.55 Interval // h. in. // A N. 8. limbs micr. in rev 1.743 = 33.97 A pat 13 26 Variation of declination in 4m. 2U. . . + 0.63 A f> at 13 30 Corr. for diam. of micr. wires . . . . — 2.20 Observed N. 8. diameter 3-2.40 278 INFERIOR CONJUNCTION OF VENDS, 1850-61, 1 I Illtl \ RY 7. 1H51. j ( ofuuwl U V Uicr. Ptanet- -Sur. Bar ; . • • OHm. A. B. C. D. E. A«. A J. A.. W,< UfV i« .. • — i — • « KCT. m. •• 1 . • i i -. I II C. . . . 3S748 39.5 59.0 5.0 17.0 99.5 U IS 4.60 +15.70 M i 66.4 59.9 >• VI-BIU . . . 8.F. 40.5 53.9 6.0 18.5 13 17 11.55 •a 48.68 —4.15 Thi-r. lit 3 H.C. . . . 31748 47.6 0.5 13.0 9.1.5 38.0 19 30 li.93 15.571 70*3. 4 Vraw . . . N.F. 37.0 49.5 9.5 IS 0 97.5 13 93 3.30 13.15 949.38 2.4*1 Hn*. ml. in 32- F. 27.916 S H.C. . . . 3374? &S.9 10.5 93.9 35.8 48. 5 19 38 33.31 15.18 6t Wniu . . . 8.P. 48.8 1.5 14.0 98.5 39.5 1931 14 06 10.96 950.83 4.99 7 H. C. . . . 337*8 45.9 58.0 10.9 93.0 35.5 19 33 10.38 15.03 8 VCBIU . . . N.F. 36.5 49.0 1.6 H.3 96.8 19 36 1.64 13.47 251.36 2.55 1 H. C. . . . 33748 43.9 55.6 8.1 90.6 33.5 13 38 8.90 14.55} 10 Venui . . . 8.P. 35.4 47.8 0.4 13.7 23.5 19 41 0.36 10.36 953.16 4.S9J 11 II. C. . . . 33748 31.9 44.0 56.5 9.0 91.7 13 4-1 56.48 14.13 1* V«u« . . . N.F. 34.0 35.5 49.9 1.8 14.5 19 45 49.30 11.50 353.73 3.63 11 II.C. . . . 33748 19.5 32.0 44.5 57.0 9.5 19 47 44.50 13.68 14 c Vrniu . . . 8.F. 13.0 35.5 38.0 iO.S 3.5 13 50 38.10 9.35 353.60 4.43 IS H. C. . . . 33748 9.5 15.0 97.5 40.5 53.0 19 53 37.70 i.i.oej It Vrnu. . . . N.F. 57.0 9.5 99.5 34.8 47.5 13 56 22.36 10.33J 954.56 2.75 17 II <. . . . 33748 49.0 1.5 14.1 96.6 39.3 19 58 14.08 19.SU 18 Venui . . . 8.F. 44.0 56.8 9.9 91.5 34.5 13 1 9.90 8.05 955.19 4.461 19 H. C. . . 33748 17.5 30.0 ; ; ' 54.6 7.5 13 3 43.38 11.811 90 Venui . . . VF. 13.9 95.7 38.3 50.6 3.5 13 6 38.36 9.09 355.88 9.721 91 H '•. . . . 33748 41.5 54.5 7.0 19.5 33.0 13 9 6.90 U.U) « Veniu . . . 8.F. 38.5 51.9 3.7 16.3 98.6 13 13 3.66 6.63J 956.76 4.49 93 H. C. . . . 33748 3.5 16.0 98.5 41.0 53.5 13 14 38.50 10.40 M V«PU« . . .N.F. 0.5 13.5 95.9 38.5 51.0 13 1795.88 7.5-3| 3 57.38 2.87J 95 H. C. . . . 33748 91.0 33.5 46.0 58.5 11.0 13 19 46.00 9.761 9> Vmra* . . . 8.F. 19.3 39.0 44.5 58.8 9.3 13 23 44.38 5.I9| 3 58.38 4.57 II «' . . . 33748 51.0 3.5 16.0 98.5 41.0 1M i*i 16.00 «• Vrou. . . . N.F. 50.9 9.5 15.1 97.7 40.3 1338 15.16 6.30 259.16 9.95 M H. C. . . . 33748 34.6 47.0 59.5 19.0 31.5 13 30 59.54 8.331 30 Vroil. . . . 8.F. 34.0 46.5 59.0 11.5 94.5 13 33 59.10 3.55 259.58 4.68J 31 H. C. . . . 33748 44.3 57.0 9.5 34.5 13 36 9.44 7, • a Venu. . . . N.P. 45.3 10.5 93.0 35.0 13 39 10.31 ' 4.55 3 0.87 3.09 33 . . 3X46 51.5 4.5 17.0 99.8 49.9 13 43 17.00 6.41 34 VTOM . . . 8 P. 53.5 6.5 19.0 31 .:, 44.0 13 46 18.90 1.63J 3 1.90 4.77J II '•• . . . 33746 . 90.6 33.1 4S.S 58.3 134833.10 5.60 31 Venn* . . . N.P. 10.5 93.0 35.5 48.0 0.5 13 51 3J.50 9.501 3 9.40 3.091 37 II. C. . . . 33748 59.5 5.9 , . 30.0 4J..-F 13 55 17.50 13.171 38 VMM . . . 8.F. 5S.O 8.5 91.0 33.5 46.9 13 58 91.01 8.321 3 3.51 4.85 39 H. C. . . . 33748 9.0 15.0 97.3 39.8 S9.S 14 097.33 19.37J 40 V«nw . . . N.F. 6.4 19.0 31.5 44.0 56.5 14 3 31.48 9.16 3 4.16 3.911 414 41 II. C. . . . 33748 VMM . . . 8.F. 99.0 34.* 41.5 54.0 59.0 • 11.5 19.0 94.3 14 5 54.00 14 8 59.06 11.40| 6.49 3 5.06 4.911 H ,,-.., 65.0 58.5 0 M «... 3J7« 51.5 11.0 93.3 35.8 48.9 14 11 93.36 10.56 Thw. Ml. 44 VtHH . . . N.F. 3.8 16.7 99.0 41.5 54.3 11 14 99.06 7 99 3 5.70 3.97 68*. 8 Bar. red. lo 33' F. « II. C. . . . 33748 . . 4.9 16.7 41. & 14 16 16.58 10.I3| 37.9-21 « Vnm* . . . B.P. 58.0 10.5 35.5 48.t 14 19 93.04 + 5.111 +3 6.46 —5.01 AT SANTIAGO DE CHILE. 279 FEBRUARY 7, 1851— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. AS. Air. Wet. 1, B. 8. 8. s. b. m. s. Bev. m. a. Rev. Inches. • 0 47 48 H. C. . . . 33748 Venus . . . N.F. 58.6 4.3 11. 5 17.0 34.0 29.3 36.5 41.6 49.0 14 31 16.91 14 24 23.9-2 + 9.03 + 5.66* +3 7.01 —3.361 28.030 65.0 5S.5 Remarks. There could not well have been a finer mornine, and there were clean images and good measures without exception. a Somewhat blurred and unsteady. c Motion wavy. b Sharp and stilly, d Daylight measures. Diameter of the planet from a mean of 10 measures, at 1U. 30m. sid. time, 1.725 rev. Corrected diameter, 31". 43. Results. h. m. B. Mem S. F. . . Twelve tranrits . . . 131838.68 Mean N. F. . . Twelve tmwits . . . 13 24 40.41 h. m. f. Correction 'for chronometer at 13 19 . . . . —53.43 Correction for chronometer at 13 25 . . . . — 53.43 A N. S. limbs micr. in rev 1.658=33.31 Variation of declination in 6m. 3>. . . + 0.78 Corr. for diam. of micr. wires .... — 9.90 Observed N. S. diameter . . 30. 69 m. s. + 2 57.67 + 258.37 Rev. — 4.571 — 2.913 . =129.09 . =056.78 • h. m. a. Santiago sid. time S. F 13 17 45. 2.5 Saniiaii.isi.!. limeN. F 130346.98 Interval 6 1.73 h. m. a A pat 13 17 0.06 & f at 13 23 0.03 FEBRUARY 1O, 1851. V Chronometer time of transit. Planet— Star. Thermometers. S \I f ' Micr. Bar. E Object. A. B. C. D. E. A a. A I. Air. Wet. 6 S. B. 8. B. s. b. m. s. Rev. m. s. Rev. Inches. O O la Taylor . . . 8533 9.5 22.0 34.5 47.5 59.8 12 32 34.66 + 16.95 28.032 58.9 53.4 9 Venus . . . 8.F. 49.5 9.3 14.8 97.4 39.8 19 35 14.76 15.51* +2 40 10 -1.43* Thr-r. alt. 3a Taylor. . . 8533 59.5 5.3 17.5 30.3 42.5 12 37 17.62 16.84* 65°. 9 4 Venus . . . N.F. 33.5 46.1 56.6 11.3 34.0 12 39 58.68 17.00 2 41.06 +0.15* Bar. red. to 32' F. 27.921 5 Taylor ... 8533 3.5 16.5 29.0 41.5 54.0 12 42 28.90 16.45* 8 Venus . . . 8.F. • • • • 10.5 33.3 35.6 12 45 10.56 14.94 2 41.66 —1.51* 7 Taylor . . . 8533 9.0 91.6 34.1 46.5 59.5 12 47 34.14 16.03 8 Venus . . . N.F. 51.5 4.0 16.5 29.3 41.6 12 50 16.56 16.18 2 42.42 +0.12 9 Taylor . . . 8533 47.5 0.3 13.3 35.6 38.1 12 53 12.94 16.55* 10 Venus . . . 8.F. 31.0 43.8 56.2 8.8 21.4 12 55 56.24 14.90* 2 43.30 —1.65 11 Taylor. . . 8533 8.8 21.5 34.0 46.6 59.5 12 58 34.08 14.96 12 Venus . . . N.F. 53.0 5.5 18.5 30.5 43.5 13 1 18.20 15.04* 2 44.12 +0.08} 13 Taylor . . . 8533 56.0 8.5 21.0 33.5 46.0 13 4 21.00 14.37 14 Venus . . . 8.F. 40.8 53.3 6.0 18.5 31.0 13 7 5.92 12.66 2 44.92 —1.71 151 Taylor . . . 8533 48.5 1.5 14.0 36.5 393 13 9 13.94 13.46* 16 Venus . . . N.F. 34.5 47.0 59.5 13.5 23.0 13 11 59.70 13.36 2 45.76 0.10* 17 Taylor . . . 8533 24.7 37.5 49.8 2.5 15.0 13 14 49.90 12.70 18 Venus . . . B.F. 11.3 24.0 49.0 1.5 13 17 36.39 10.96* 2 46.49 1.73* 19 Taylor . . . 8533 38.0 50.8 3.5 16.0 28.4 13 23 3.34 11.76* 90 Venu« . . . N.F. 96.0 • • 51.0 3.5 16.2 13 25 51.03 + 11.67* ( 2 47.69 —0.09 280 INFERIOR CON.H MTION OF VENUS, 1850-61, rEBItt \HV in. ISM (....ii,,,,, ,|. 1 1 Chmno«irtrr time of trauoit. Planet— Star. MM ,• Micr. 1, . O^tt. A. B. D. A* AJL Air. u.i • • t I , i in- f* 1. . n Taylor. . . 8531 59.0 115 36.5 49.5 13 3894.10 + 11.03 H 56.9 .-.•„-. Vrnu. . . . 8.F. 47.5 0.5 13.0 95.9 3S.O 13 31 1*.M 9.311 +3 48.74 —1.811 Thrr. att. Taylor. . . KS33 19.5 85.1 37.7 50.3 9.5 13 X, 37.69 10.41 64'. 5 , Veawi . . . N.F. 9.5 15.3 97.6 40.3 52.5 13 33 37.64 9 50.03 0.19 to 32* F. n.ua Taylor. . . 8533 98.5 41.0 53.5 6.0 18.5 13 40 53.50 9.041 • Vrnu. . . . 8.P. 19.0 31.5 44.0 56.6 9.3 13 43 44.08 7.76 350.58 1.881 87 Taylor . . . 8533 56.5 9.3 91.5 34.0 46.5 13 46 31.56 8.791 * Vrnu. . . . N.P. 48.0 0.5 13.9 95.6 38.0 13 49 I3.0S 8.56 251.50 0.331 m Taylor . . . 8313 54.0 • 19.3 31.5 44.0 13 51 19.06 8.091 JO Veniu . . . 8.F. 46.3 59.0 11.:, 33.7 36.5 13 54 11.40 6.18 3 53.34 1.91| a Taylor . . . 8533 98.0 40.7 53.1 5.6 18.3 13 53 53.14 7. MS * Vrnu. . . . N.F. 91.0 33.5 46.0 58.6 11.3 13 59 46. OS 7.06 3 53.93 0.97 m Taylor . . . 8533 19.8 32.5 45.0* 57.5 10.0 II 1 44.96 6.601 M Venn . . . 8.F. 13.5 96.5 39.0 M.3 3.8 14 4 38.83 4.63 353.86 1.98J IB Taylor . . . 8533 9.0 91.5 34.3 46.8 59.3 14 6 31.18 5.931 36 Vrnu. . . . N.P. • • 16.5 99.0 41.5 54.0 14 9 38.97 5.531 3 54.79 0.39 37 Taylor . . . 8533 3.9 15.5 98.1 40.6 53.0 14 11 38.08 5.91 38 Venua . . . 8.F. 58.4 10 7 23.5 36.0 48.5 14 14 33.43 3.15 9 55.34 9.06 X Taylor. . . 8533 1.0 13.8 96.1 36.6 51.9 14 16 96.14 4.471 • • Vrnu. . . . N.F. 57.0 9.5 93.3 34.6 47.3 14 19 32.08 4.001 3 55.94 0.47 414 Taylor . . . 8533 1 14.5 96.8 39.5 51.8 14 33 36.92 3.55 • Veoua . . . 8.F. 56.5 11.9 94.0 36.5 48.8 14 35 23. CO 1.43 9 56.88 9.13 43 Taylor . . . 8533 51.3 4.8 16.5 99.0 41.5 14 37 16.63 9.74 44 Vrnu. . . . \ 1 49.0 1.5 14.3 96.6 39.2 14 30 14.13 9.311 957.50 0.431 Taylor. . . 8533 59.5 19.0 94.6 37.1 49.8 14 33 34.60 8.48 4* Vrnu. . . . S.F. 58.9 10.7 93.9 35.7 48.3 14 35 93.93 6.30 9 58.63 9.18 47 Taylor. . . 8533 36.8 . . 9.U 14.6 97.0 14 37 1.96 7.86 Vrnu. . . . N.F. 36.0 48.5 1.9 13.6 96.3 14 40 1.13 +7.98 +959.16 -0.58 Remarks. TIic ftnt part of the morning wai only fair, but Hie Ian thirteen measure* hare been good. a Rlurrrd and unsteady. c Good. I Toll-mill) .harp and food. d Daylight measure!, of Vrnu. from a mean of 10 mruurea, at 14*. 49m. aid. time, 1.696 rev. Corrected diamrtrr, 39". 49. Results. h. m. i». m. •. Rev. i n Mean 8. P. . . Twelve trannit* . . . 13 X< 50.19 9 49 40 ... 1 034 . . 0 35 75 Mrma N. P. . . Twelve irin.cu . . . 13 46 19.77 — 9 50.94 .... —0.199 . . . . =0 3.89 h. m. V. h. m. a. ComctfcM to cfcnnotwur at 13 36 . . -51.66 danliogo ild. lime 8. F . 1:1 :u 58.46 Correction for chronometer at 13 46 — 51.66 Santiago nid. time N.F. .... 13 45 38 11 10 99.65 H li. in. fl A N. 8. li»b. »fer. in rev. . . . . 1.635 = 31.86 A f M 13 31 . . . 0.02 Variation of drrlm.uon In I0». 30.. + 1.03 Apat 13 41 . . . 0.00 Can. far di.m. of mk-r. win* . . . . - 9.90 Ot t M. 8. alanmtr . INFERIOR CONJUNCTION OF VENUS: 1852. MAT 30, 1858. 1 No. for reference Object. Chronometer time of transit. Mean of wires Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. 61. Air. Wet. s. 8. -. S. 8. h. m. s. Rev. m. s. Rev. Inches. • ' 1 Bessel ... 339 . 40.5 53.0 f 10 50 53.19 —3.26 27.916 56.3 50.3 2 Venus . . . N.P. 43.1 55.0 8.0 21.0 34.0 10 52 8.02 +6.641 +1 14.83 +9.901 3 4 5 Bcssel . . . 339 Venus . . . 8. P. Bessel ... 339 48.0 3.5 44.8 0.5 16.5 58.0 13.5 99.5 10.6 26.5 42.0 93.6 55.5 10 57 13.57 10 58 29.40 11 1 10.70 — 4.13J +8.85 —1.48 1 15.83 10.981 Thcr. att. 60" .2 Bar. n-d. to 32° F. 27.833 6 Venus . . . N.P. 1.5 14.5 40.2 53.5 11 2 27.42 +5.70J 1 16.79 10.181 7 8 9 Bewel ... 339 Venus . . . S.P. • • 6.8 94.1 11 6 6.78 11 7 24.08 11 956.28 —5.06^ +6.84 -5.55 1 17.30 11.901 Beuel ... 339 56.3 10 Venus . . . N.P. 14.0 11 11 13.98 +4.90 1 17.70 10.45 11 12 13 Besscl . . . 339 Venus . . . S.P. 34.0 52.2 • • 11 13 33.98 11 14 52.18 11 17 0.78 —5.95 +6.29 —6.29 1 18.20 12.24 Besiel ... 339 0.8 14 Venus . . . N.P. • • 19.5 • • 11 18 19.48 +4.37 1 18.70 10.66 15 Bessel ... 339 . , . . 6.5 . r 11 91 6.48 —6.61 16 Venus . . . S.P. • • 25.5 • • • • 11 29 25.48 +5.75 1 19.00 12.36 17 18 19 30 Beimel ... 339 Venus . . . N.P. • • • • 41.7 1.5 11 24 41.68 11 28 1.48 11 97 55.78 11 29 15.68 —7.011 +3.841 -7.16J +5.391 1 19.80 +1 19.90 10.86 +12.56 Bessel ... 339 Venui . . . S.P. • • • • 55.8 15.7 • • • • There never was a sharp image. is not more than an Bill magnitude. Remarks. The star docs not agree well with the Ephemeris ; but there is no other anything like so bright, and this certainly Results. Mean N. P. Mean S. P. Five transits Five transits h. m. Correction for chronometer at 1 1 10 Correction for chronometer at 11 14 A N. S. limbs micr. in rev. . . Variation of declination in 4m. 27». I'orr. for diam. of micr. wires Observed N. 8. diameter . h. in. s. 11 10 2.08 11 14 29.36 B. . —45.34 . —45.34 1.598 = 31.14 - 2.17 — 2.20 26.77 m. s. Rev. + 1 17.55 .... +10.412 . + 1 18.05 .... +12.010 . . =3 22.93 . =354.07 h. m. s. . 11 9 16.74 Santiago sid. time N. L. ... Santiago sid. time S. L 111344.02 Interval 4 97.28 h. m. " A pat 11 9 0.46 A pat 11 13 0.56 3fi 282 INFERIOR CONJUNCTION OF VENTS. 1852, .11 \K I. IBS*. Cloudy. jriiK a, lisa. 1 Chronometer time oftran.it. Planet— Bur. Thermometer. . Mler. Bar Object. A. B. C. D. E. &• &i Air. 1 tf - (. - a. M. h. m. .. ! m. «. Et-v. Inches. • 1 If. C. ... 15548 17.5 30.5 43.1 56.4 9.4 10 38 43.38 — 3. Gil 49.9 Yrnm . . .N.P. 55.3 9.9 35.0 47.6 10 40 91.88 + 9.11J +1 38.48 +19.73 Ther. att. 11. C. . . . 15548 34.5 47.5 0.5 13.3 96.3 10 43 0.49 — 4.10 01.7 Venu. . . . 8.P. 14.9 97.S 40.0 53.0 6.0 10 44 40.08 + 11.09 1 39.G6 15.19 Bar. red. 10 33' t. 27.997 H.I'. . . . 15541) 98.0 41.0 53.B 6.7 19.8 10 46 53.86 — 3.97J Venui . . . N.P. 7.8 90.5 33.5 46.5 59.4. 10 48 33.50 + 9.03 1 39.64 13.001 II. C. . . . 15548 7.5 90.3 32.6 46.0 102120.13 - 4.47| V-rui. . . . S.P. 35.0 48. 0 1 0 13.5 36.5 10 53 0.80 + 10.41 1 40.68 14.881 9 II. C. . . . 15548 21.9 34.0 46.3 59.5 10 55 33.88 -5.12J 10 Venoi . . . N.P. 49.0 1.5 14.fi 97.4 40.5 10 57 14.60 +8.18 1 40.74 13.281 11 II. C. . . . ISMS 19.S 33.3 45.0 58.0 10.8 10 59 45.06 — 5.53J 12 Vcnu P. 59.8 13.5 36.5 39.5 53.5 11 1 36.36 +9.58 1 41.30 15.09J 13 II. C. . . . 1SS48 4.5 17. 8 30.5 43.5 56.5 11 4 30.33 — 8.07J 14 Venn. . . . \ P. 46.5 59.8 19.5 35.3 38.9 11 6 13.43 +7.43 1 41.90 13.49} IS II. C. . . . 15548 54.0 7.0 19.8 33.5 45.7 11 9 19.80 -8.63 It VVnm . . . B.P. 38.4 48.8 • • 14.8 38.0 11 11 3.00 +8-83* B.I ' 15.45| 17 H.<'. . . . 15548 8.8 31.8 34.8 47.6 0.5 11 13 34.70 -6.91 18 . . . N.P. 51.5 4.5 17.5 30.5 43.5 11 15 17.50 +(i.Bfl 1 43.80 13.77 1> lie. . . . 15548 49.3 9.4 15.9 97.6 40.8 11 18 15.06 —7.38 M Vi-nu. . . .B.P. 33.8 45.5 58.5 11.5 84.5 11 1958.56 +8.80J 1 43.50 15.581 81 II. <' . . . 15548 18.5 99.6 49.5 55.5 8.5 11 2SI 49.53 -7.90J » \>nu. . . .N.P. 1.3 13.5 96.7 39.8 53.0 11 9496.86 +6. 14* 1 44.34 14.05 S3 II. C. . . . 15548 48.8 59.6 19.5 95.6 38.7 11 97 19.64 — 8.S9J M Vraiu . . . B.P. 31.5 44.5 57.9 10.4 93.5 11 98 57.48 +7.48 1 44.84 15.771 85 II. C. . . . 15548 14.8 97.6 40.5 53.5 11 31 37.54 —8.80 mm Venu. . . . N.P. 47.5 0.5 13.S 96.5 39.4 11 33 13.48 +5.45 1 45.94 14.95 91 . . . 15548 31.0 44.0 S7.0 9.8 99.8 11 3556.99 -8.93 » Vrnw . . . 8.P. 17.0 30.9 43.3 56.0 9.0 11 37 43.10 +7.08 +1 46.18 +16.00 Remarks. rrr nrrer »»« > iliarp image ilunm the olwrrvatjon>. Both object* are liri|lit enon|h, but are to unsteady that thry appear blurred. -. !• Mnn 8. P. ;r.tuMN h. III. Correction for chronometer at 1 1 6 Correction for chronometer ai 1 1 II A N. 8. limb. mirr. In rev. . . . Variation of toelbMlio* In 4m. 30i. Cwr. tor diaai. of micr. win* . , OtarmdN.ll. diwanrr . h. m. >. II 6 38.60 11 10 58.34 0. . -47.48 . —47.48 1.914 = 37.30 — 9.98 — 9.90 39.84 m. a. Roy. ' " + 141.98 .... +13.513 . . . . r 4 23. 3.'. + 143.63 .... +15.426 .... =5 0.65 h. rn. -. Santiago H,|. tim>> N. L 11 541.19 Santiago >id. time 8. L 11 10 10.86 4 99.74 h. in. " & pal 11 5 O..'.n A pat II 9 0.61 AT SANTIAGO DE CHILE. 283 JUKE 3, 1852. V • Chronometer time of transit. 1 Planet— Star. Bar. Thermometers. t Object. A. B. C. D. E. A a. A J. Air. Wet. £ £ s. 8. •i 8. s. tl. Ill- S. Rev. m. 9. Rev. Inches. • • M ! 50.0 10 56 49.98 +8.30 27.979 55.2 51.4 2 Venus . . . N.P. 59.5 13.5 25.5 38.5 51.5 10 59 25.50 —1.49 +2 35.52 —9.79 Thor. :itt. 15.0 11 3 14.98 +7.80 62°. 6 4 Venus . . . S.P. 34.5 38.0 51.0 . . 16.5 11 5 50.70 —0.10 2 35.72 7.90 Bitr ml. to 3f F. I 27.888 5 Anon t . 48.5 1.5 14.3 •11 16 1.43 +6.39 6 Veuua . . . N.P. 13.5 26.1 39.0 53.3 5.1 11 18 39.18 —2.79 2 37.75 9.18 7 Anon .... 0.5 30.3 11 33 13.41 +S.7I, , e Vemio . . . S.P. 96.0 • • 51.5 4.8 18.0 11 3551.87 —1.65 +2 36.46 -736J Remarks. There is no Mar in the designated place of the Enhemerw, and this, the nearest, in probably of the 9th or 9{ magnitude. Sharp image*. Stopped by increasing haze. Results. h. m. s. Mean N.P. . . Two transits ... 11 9 2.34 Mean S. P. . . Two transits . . . 111551.38 h. MI. >. Correction for chronometer at 11 9 ... —47.90 Correction for chronometer at 1 1 16 ... — 47.90 A N. 8. limbs micr. in rev 1.853 = 38.11 Variation of declination in 6m. 49». . — 3.55 Corr. for diam. of micr. wires .... — 3.30 Observed N. S. diameter 30.36 m. s. Rev. + 2 36.63 .... —9.485 + 2 37.09 .... —7.632 = 3 4.86 = 2 28.75 h. m. s. Santiago «id. time N. L 11 814.44 Santiago sid. lime S. L 11 IS 3.38 Interval 6 48.94 h. m. " A ^at 11 7 0.35 A pat 11 14 0.30 JUNE III. Cloudy. JUNE I :. 1852. 1 t Object. i • Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A i. Air. Wet. 8. 8. ,. B. 8. h. m. s. Rev. m. s. Rev. Inches. • • 1 Venus . . . N.P. 47.0 0.0 13.5 35.3 38.0 11 35 12.56 —7.08 38.037 48.0 46.6 2 H.C. . . 16659 . . 15.8 28.5 41.0 54.0 11 38 28.50 +0.72 —3 15.94 —7.80 3 Venu» . . . S.P. 4 H.C. ... 16659 .1 VenUB . . . N.P. 2.8 56.: 5 0.3 15.5 9.0 12.9 22.0 25.6 41.2 34.8 38.5 54.0 47.6 11 31 13.00 11 34 28.37 11 36 21.98 —8.57 +1.42 — 6.10J 3 15.37 9.99 Ther. att. 60" .9 Bar. red. to 32° F. 27.951 60 H.C. ... 16659 11.5 34.3 37.0 49.6 2.5 11 39 36.98 +2.12 3 15.00 8.22J 7 Venus . . . S.P. 13.5 36.5 39.2 52.0 4.6 11 41 39.16 -7.61 8 H.C. ... 16659 38.0 41.0 53.6 6.5 19.5 11 44 53.72 +2.70 3 14.56 10.31 9 Venus . . . N.P. 27.0 39.8 53.7 5.0 18.3 11 46 52.56 — 5.07 10 H. C. . . . 16659 41.5 i 54.0 • • 19.6 11 50 6.80 +3.091 —3 14.24 -8.16J INFERIOR CONJUNCTION OF VENUS, 1852, JVKK 1«. l«3»-Conllnnrrt. I &_ 11 Ml 13 M IS H Object. Chronometer time ofirmn.lt. M • • u .. Mirr. Planet— Star. Bar. I • ••.,. . . ; • - A. B. C. D. E. A«. A* Air. •,\. • a. •. •. a. •. b. m. i. Rev. m. a. Rev. Inrhr.. * • \>nu« . . . P.P. H. C. 166i9 5.0 36.0 48.5 35.0 17.8 31.5 48.5 48.0 0.5 30.5 43.3 56.0 11 5930.50 H M 41.1.'. 19 1 1.36 19 4 14.09 13 7 0.79 12 10 13.36 -6.80 +3.SS —4.00] +4.90 -5.601 +5.501 —3 13.65 3 13.73 —3 19.64 —10.75 8.901 -11.11 98.037 Thcr. Ml. 60-.9 Bar. ml. to 3f f. 97.951 48.0 • . V»»o. . . . H.P. B.C. . . . 166M Vrng. . . . 8 P. M. C. 16658 1.5 14.0 0.8 14.0 9G.8 13.5 86.2 96.8 39.7 98.3 Remarks. Planet «harp and steady ; hut there it ta much haze that the 8tar u extremely dim. a Perhaps a little open. Recorded 49. St. at wire E. 4 Too dim. Jtestilis. Mean N. P. Mean 8. P. Four tran*itji Four transits li. m. Correction for chronometer at 1 1 42 Correction for chronometer at 1 1 48 A N. H. limb* micr. in rev. . . Variation of declination in 5m. 44«. Coir, fordiam. of micr. wiru . . Obicrved N. 8. diameter . . . b. m. a. 11 43 33.11 11 48 5.84 8. . — 49.08 . —49.08 9.966 = 44.16 — 9.90 38.64 in. >. — 3 14.48 — 3 14.05 Rev. — 8.274 — 10.540 . . =941.26 . . =325.49 h. m. s. Santiago siil. lime N. I, 114133.03 Bantiafo «d. time 8. 1 114716.76 Interval 5 43.73 h. m. it. A f at 11 43 0 :il A pat 11 49 . 0.49 .1 1 \ K 13, 1S3SI. Cloudy. JVKK II. 183*. Cloudy. JfSK IS, 1K5S. ) f Objecl. Curonomrlrr time of lnin.it. • Hean of wired. Micr. Planrt-8(ar. Bar. - T'h iiimni' 1. r- A. B. C. D. 1 A a. A A Air. Wet. a. i. a. l. a. b. m. «. ACT. m. a. B»T. Incbea. • • | Vraua . . . K.r. 49.8 9.5 98.0 41.0 11 33 15.36 -5.91 B.M 44.8 43.3 H.I: . . . 17013 . . 57.5 10.5 93.1 35.5 11 39 10.33 4.68 ', ; M -0.53 3 4 1 V.nii. . . . 8.P. B.C. ... 17013 Vmw . . . N.P. 99.5 94.0 M.« 49.0 36.5 17.5 55.0 49.0 50.5 7.5 1.6 3.0 90.4 14.5 15.9 11 41 54. $8 11 48 49.19 11 5050.38 4.07 5.81 7.19 654.94 + 1.74 Tber. alt. 57'. 1 Bar. red. tu 39- F. H.I , • II i . . . I7UI3 19.8 • • 44.6 £6.5 9.5 11 57 44.45 7.10* 6 54.07 —0.011 7. Vrno. . . . B.P. 96.6 39.5 58.9 4.9 17.8 19 0 99.90 4.88 • II ' . . . 170IJ 19.S • • 4.1.4 57.7 10.5 19 7 45.19 7.89 1 | u +9.41 » V^nu. . . . N P. 94.6 37.3 50.5 3.0 U.I 19 950.18 8.69 M II <• . . . 17013 17.6 99.5 49.5 55.5 8.0 13 16 49.60 9.33| 6 A9.49 0.60) 11 Vrnq. . . »7.0 10.0 99.7 35.5 47.5 19 19 99.54 7.16 It II < . . . . 17013 • • 14. S 97.0 39.5 13 96 H.3S -10.91 -6 51.81 +3.05 AT SANTIAGO DE CHILE. JUNE 1 ->. 1853— Continued. Remarks. Images quite sharp, and both objects steady during the first four observations, a Micrometer recorded — 5.88 rev. 285 Results. Mc»n N. P. Mean 8. P. Three transits Three transit* h. in. Correction for chronometer at 11 51 Correction for chronometer at 12 1 A N. s. limbs micr. in rev. . . . Variation of declination in 9m. 4."». Corr. for diam. of micr. wires . . Observed N. S. diameter . . . h. in. g. . 11 50 58.64 . 12 0 43.21 — 46 12 — 46.12 2.380 = 46.39 — 5.70 — 2.20 38.49 in. s. -6 53.82 -6 52.99 Rev. + 0.020 + 2.400 = 0 0.39 = 0 46.78 ll. m. s. Santiago sid. time N. L 115012.52 Santiago -id. time S. L 11 59 57.09 Interval . . . . / 9 44.57 h. m. » A p at 11 54 0.00 A pat 12 3 0.10 JUNE n. ; :. 1853. Cloudy. JUNE -4i. 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A«I. Air. Wet. f. t. s. s. s. h. m. s. Rev. B. Rev. Inches. • • 1 Bessel ... 274 . 34.5 . 59.5 13 3 47.03 —9.57J 28.065 52.8 49.3 3 Veniu . . . N.P. . . 30.0 43.5 55.0 . . 13 4 43.50 3.92( +55.48 +5.65 3 4 5 Bessel ... 374 Venus . . . .- r. Bemel ... 274 44.6 14.0 10.0 33.0 • • 34.6 12 7 13.98 13 8 9.72 12 10 22.98 10.03 1.981 10.411 55.74 8.041 Ther. an. 60°. 1 Bar. red. to 32" F. 27.982 6 Venus . . . N.P. 53.5 • • 18.5 • • 44.0 12 11 18.66 4.711 55.68 5.70 7 Bcssel ... 274 28.0 . . 13 14 37.98 10.90 8 Venus . . . 8.P. 50.5 • • 34.5 • • 49.5 12 15 24.49 3.65 56.51 8.25 9 Bessel ... 274 87.4 . , . . 12 18 27.38 11.371 10 a Venus . . . N.P. • • • • 24.0 • • 12 19 33.98 5.46 56.60 5.911 11 Bessel ... 274 t t t t 54.3 . . . 13 21 54.18 11.80 12 Venus . . . JS.P. 49.5 • • 15.5 13 22 50.03 3.33 55.85 8.47 13 Bessel . . . 274 f t t 16.0 , . 12 27 15.98 12.32 11 Venus . . . N.P. 47.0 • • 1*5 • • 37.8 12 28 12.42 6.07 56.44 6.25 15 Bes*el ... 274 8.5 . . 13 31 8.48 12.731 16 Venus . . . 8. P. 40.5 • • 5.8 31.0 12 32 5.76 4.301 57.28 8.52 17 Bessel ... 274 g t t t 57.0 13 36 56.98 13.25 18 Venus . . . N.P. 38.3 53.5 18.5 13 37 53.43 6.79 56.44 6.46 19 Bessel , . . 274 . . 22.5 . . . , 12 40 22.48 13.541 20 Venus . . . S.P. 53.3 • • 19.0 44.0 12 41 18.72 -4.68 +56.24 +8.861 286 At UK cotum* INFEBIOR CONJUNCTION OF VENUS, 1862, .11 M: ::. i--.i <<>mluurd. Jtemarts. imajn vrr> rharp; yet there hu been • vibratory motion all th.- nmr, which prevented any of the a Recoided 43. 9i. at wire E. from JRentltt. b. m. «. r- Rev. i f MraaN.P. . . . Fivr traiuiu . • . 13 90 18.90 + 56.13 .... +5.995 . . . . —I 58. 84 Mean 8. P. . . Five tnu»lu . . . 19 S3 £7.74 + 56.32 .... +8.430 . . . . =944.30 h. m. m. a. h. m. a. Correction for chronometer at 12 90 . . —1 5.97 12 19 13.23 Correction for chronometer at 13 34 . . —1 5.97 19 22 51.77 • h. in. ~ limbs micr. in rev. • • • • • 2.435 = 47.46 Aff at 19 19 . . . . 0.24 Variation of declination in 3n< 40t. . . — 9.10 A f> at 12 22 . . 0 36 Corr. for iliam. of micr. wire* .... a. 20 Ohwrved N. 8. diameter 43.16 J( \K 33, 1899. $ Chronometer time of tranait. Micr. Planet-Star. Bar. Thermometer*. 1 |l Object. A. B. C. D. K. A a. A t. Air. Wet. 1 a. a. a. a. a. h. m. - Rev. m. a. Rev. Inchea. • • Be»ael . . . .974 . . 15.5 98.0 , f 12 5 15.53 -6.82 87.937 54.9 47.3 Venna. . . N.P. 43.1 55.5 6.5 91.0 33.7 12 7 8.36 4.57 +1 59.83 +2.85 Ther. alt. 3 B«aa«l ... 974 • • , . 85.4 37.5 49.8 19 9 95.13 7.771 58'. 6 4 Venu. . . . 8.P. 53.3 6.0 18.5 31.0. 43.5 12 11 18.46 2.831 1 53.33 4.94 Bar. red. ton r. 97.858 S« Beaad ... 974 51.5 3.7 16.0 - 41.3 19 14 16.30 8.39 6 Vniu. . . . XT. 44.3 57.0 9.5 93.1 34.5 19 16 9.48 5.75 1 53.98 9.64 7 Beaad ... 974 91.9 33.6 , . 58.8 11.5 19 19 46.98 9.97 Vrnu. . 14.5 97.5 40.0 • • 4.8 19 31 39.80 3.91 1 53.12 5.36 , B«Ml ... 974 91.0 t t 48.0 . . 11.0 19 94 45.99 11.81 10 Venua . . . N.P. 14.5 • • 39.5 • • 4.7 19 23 39.56 8.76 1 53.57 3.05 11 Be»«el ... 274 56.9 t t 93.5 , 48.5 12 29 93.39 7.88 19 Vrnu. . . 59.0 • • 17.1 49.3 19 31 17.19 9.00 1 53.73 5.86 13 BcMd ... 974 19.0 44.0 . 9.0 19 33 43.99 8.011 14 Vrnu. . . . N.P. 12.5 • • 36.0 • • 3.0 12 35 37.82 4.631 1 53.83 3.38 15 Beaael ... 874 . 10.5 93.9 . t 48.9 193833.15 8.34 M Vrnu- . . . B.P. 4.5 17.1 • • 49.3 13 40 17.08 3.51 1 53.93 5.83 17 Bowl ... 874 56.8 9.0 99.0 34.5 19 43 9.35 8.73 18 Vena*. . . N.P. 38.5 50.8 3.5 . • 98.6 19 45 3.50 5.16* 1 54.15 3.57 If Beaael ... 974 . . 51.5 . 16.3 13 49 .M.. I.", 8.331 90 Vrnu. . . 90.5 • • 45.5 57,5 10.5 19 51 45.40 9.07 1 53.95 6.951 tl B«ml ... 874 0.0 f 95.1 49.8 19 54 94.96 8.401 89 Vrana. .. . HP. M.9 • • 19.5 • • 44.7 13 56 19.46 4.5«| 1 54.50 3.89 B B*»M4 ... 874 . , 9.6 15.5 f 40.0 19 59 15.39 8.49J 84 Ve.«a. . . B.P. 44.3 • • 9.5 • • 35.0 13 1 9.59 -9.031 + 1 54.37 +6.39 AT SANTIAGO DE CHILE. 287 .11 NE 23, 1853— Continued. Remarks. Sharp, clean images throughout ; and, if the star would have permitted a little more light, I should have put down all the measures satisfactory. a Star recorded 15.5s. at wire C. Mean N. P. . . Six transits . . . Mean S. P. . . Six transit.* . . . It. in. Correction for chronometer at 12 31 . Correction for chronometer at 12 36 . AN. S. limbs rnicr. in rev. . . Variation of declination in 5m. 5». Corr. for diam. of micr. wires . Observed N. S. diameter . Results. h. in. s. M. 8. Rev. i i . 12 31 9.70 + 1 53.69 .... +3.102 . . . . =1 0.46 . 12 36 14.58 + 1 53.80 . . . . + 5.772 . . . . =1 53.50 in. s. h. m. s. \ 6.11 12 30 3.59 \ gji 13 35 8.47 5 4.88 „ h. m. 2.670 = 52,04 . . . . 0.14 — 2.85 & f at 12 34 . . . ... . . . . . . . 0.29 — 2.20 46.99 JUSTE -J 1. 1852. 4 Chronometer time of transit. Planet— Star. ^Thermometers. r VI f Bar i Object. A. B. C. D. E. " Aa. A A Air. Wet. £ 1 i. f. B. 8. 8. h. m. s. Rev. m. s. Rev. Inches. • I 1 Venu« . . . N.P. 43.0 8.3 33.5 13 16 8.33 -(-6. 03 98.004 53.5 49.8 3 Besscl ... 374 f f 37.0 . . 2.2 12 20 37.15 —5.51 —4 28.93 +11.54 Tbtr.Mt 3 Venus . . . S.P. 57.0 23.0 48.3 12 33 22.82 +7.43 59°.7 4 a Bessel ... 974 51.5 . . 17.0 13 37 51.80 —6.53 4 38.98 13.96 Bar. red. to 32° P. 27.1)21 5 Venus . . . N.P. 10.0 35.3 . . 0.5 12 30 35.26 +4.38 C Bessel ... 274 38.5 • • 3.6 29.0 12 35 3.69 —7.42 4 38.43 11.80 7 Venus . . . S.P. 59.7 t 25.0 50.3 12 37,24.99 +6.331 8 Bessel ... 874 38.0 53.6 18.5 12 41 53.36 —8.00 428.37 14.331 9 Venus. . . N.P. t < t m 50.0 , . 15.0 13 43 50.05 +3.64 10 Bessel . . . 274 • • 18.5 • • 43.5 12 48 18.55 —8.52 4 28.50 12.16 11 Venus . . . S.P. 19.0 44.5 , 9.5 12 50 44.32 +5.69J t 19 Bessel ... 274 47.5 13.5 • ' 37.5 13 55 12.47 —9.01 -4 28.15 +14.701 Remarks. Images good and steady, but the star is too small for satisfactory work ; the declination measures, however, are regarded good. a Recorded 53. St. at wire C. Results. li. m. s. m. 8. Rev / // Mean N. P. . . Three transits . . . 123011.18 -428.62 . . . . +11.833 . . . = 3 50.62 Mean S. P. . . Three transits . . . 12 37 10.71 — 428.50 .... +14.333 . . . = 4 39.34 h. m. m. >. h. m. 8. Co potion for chronometer at 1° 30 . —1 6. SO . . . 12 29 '4.28 Correction for chronometer at 12 37 . . . —1 6.90 Santiago gid. time S. L. . . . . . . 12 36 3.81 . . . 6 59.53 n h. m. // A N S 1' h ' 'n pv 2.500 = 48.73 0.55 V:in;i[inn nf (Inclination in 7m. Of. - 3.87 A c, at 12 38 . . 0.76 Corr. for diam. of micr. wires Observed N. S. diameter . . — 2.20 P.I;:, INFERIOR CONJUNCTION OF VENUS, 1862. .11 \R *3. SO. JW, idy. .M XK 88, 183S. Cloody. There wu quite a sharp earthquake between 1 and 9 A. M. JUNE JIO to Jl I.Y *, 1S5JJ. ri.Hidy. .11 I. V S, There wu a Mv«n> earthquake from 7*. 37m. 17i. to 7A. 37m. 52i. rid. time. The night wu cloudy. JULY 6, 1853. j Chronometer time of transit. Planet— Star. Thermometers. Object. A. B. 0. D. E. A*. A I. Air. \Vi-t. * • s. i. 8. *. b. m. i. Rev. •. Rev. Iliclicn. • • 1 tttmel ... 973 37.5 49.5 . 14.3 19 56 49.68 —9.96 •.DM 47.4 43.7 9 Vena> . . . N.P. . . 47.5 59.8 19.0 . . 19 59 59.77 +9.09J +3 10.09 +5-05* Ther. alt. 3 Bewl ... 373 19.5 31.6 44.0 13 9 19.48 —2.921 58- .0 4 Venui . . . N.P. 4.5 lt.8 99.3 41.5 54.1 13 5 99.94 +2.29 3 9.81 5.91t Bar. red. » a i . 38.017 S Baml ... 973 58.7 11.6 94.0 . . 13 8 11.43 — 2.571 6 Veoiu . . . N.P. 46.5 • • 91.1 33.9 46.3 13 11 91.38 4-9.83 3 9.95 5.401 Beuel . . . 973 . . 51.7 4.3 16.3 t , 13 14 4.10 —1.75 8 Veaiu . . . N.P. 48.5 1.0 13.9 35.7 38.1 13 17 13.30 +3.691 +3 9.90 +5.44J Mean N. P. Four lran«il« Remarks. Very iharp and iteady until the lul observation. BN ilti. li. m. Correction for chronometer at 13 8 li. m. l. . 13 H 30.99 m. r. . —1 7.91 m. i. Rev. + 3 9.76 .... +5.980 . . h. m. A pat 13 6 Santiago (id. time N.P , // . 0.53 . . =1 43.91 h. m. m. . 13 7 93.71 JULY 7, 183!1. At nifht Uw cnmparinf nar wu not prt.-. ptii.l. i).rou(h the thin cirri until 13*. ible in Ihc mornlnf twilight. Jt I.V as and '49, 1834. Cloudy. • JULY 30, 189S. No. for reference. Object. Chronometer time of transit. Meanofwirci. Micr. Planet— Sur. Bar. • [ • ' ' A. B. C. O. E. A «. A I. Air. W.l •. ». • ». •. •. h. in. i. Bev. l. Rev. Inchrl. • • 1 a 3 4 5 « 7 g 9 IB 11 1S« II. C. . . . H961 Venui . . . 8.F. 11. C.... 14961 3 0 2 50 9.98 960 W.W 9 S3 34.38 3 53 97.48 9 £533.48 9 58 15.98 9 68 13.58 5.98 3 0 53.58 3 1 45.48 +4.89 —4.3IJ +4.89 —7.57 +4.8IJ — i.60 +4.831 —7. HI +4.68 -7.86 +4.771 —4.81 +59.00 4 53.90 53.50 ' ' +53.90 -9.30* 13.46 9.44| 19.631 13.M -9.58J 36.036 Thrr. »tt. H:u. r.-cl. ST. MTU 37.5 38.8 • • 55.0 31 3 • • 11. C. . . . H561 Venui . . . 8.F. II. C. . . . 14961 V. nu« . N.F 23 5 . . • • 16.0 . . 13.6 . . 6.0 . . • • II. r. . . . 14961 Venu . . . N.F. • • S2.6 . . 45.5 . . • • If >'.... 14961 Vmw . . . 8.F. • • • • 44.5 • • • • 3 4 44.48 Remarks. A drippmj roc«iiin« ; rren the objeet-|rltM, although under cover, «ufl'u«ed with moiiturc before it had been eipoied ten minutei. Tliu« DM aifn were artrr ibarp ; and, indeed, the >tar waa at least 3" in diameter nil the time, though the planet wu tolerably favorable for niriuuiri. a Thl» obnervation omitted in Ihr results. Results. h. in. I. i. R.v. / / Mew 8. P. . . Two Irandu . . . i! .VI 35.48 + 5J.25 .... — 9.3» . . . . =;i 1.71 Mean N.F. . . Three traoalu . . . 9 58 r..:n + 53.83 .... -13.545 . . . . =4 4.50 h. in. 9. h. m. •. Correction for chronometer at 3 53 . . . +33.41 8 53 58.90 Correction for chronometer at 9 58 . . . . +33.49 3 5899.73 Interval ... 4 30.83 ,, h. m. t A N. 8. limb* inirr. li> r'-r .1.390 -- 63.76 A ^at 3 53 . . . 0.86 Variation of declination in 4m. 3li. . . — 0.35 A pat 9 58 . . 1.03 Cmr. rnrdlam.or micr. wirei . . . — 8.90 Observed N. 8. diameter 60.31 AT SANTIAGO DE CHILE. 291 JULY 31, 1853. V Chronometer time of transit. Planet— Star. Thermometers. a 1 Object. A. B. C. I). E.' A a. A'.53. Results. Mean N. F. Mean S. F. Two transits Two transit* li. in. Correction for chronometer at 2 57 . Correction for chronometer at 3 3 . A N. S, limbs mier. in rev. . . . Variation of declination in 5m. 24>. . Corr. for diam. of micr. wires Observed N. 8. diameter .... h. m. s. 2 57 29.67 3 2 53.85 s. . +26.61 . +26.61 3.012=58.70 + 0.39 — 2.20 56.89 m. s. Rev. ' " + 319.67 .... +4.480 .... =127.32 + 320.19 .... +7.492 .... =226.02 h. m. s. Santiago sid. time N. F 25756.28 Santiago sid. time 8. F 33 20.46 Interval 534.18 h. m. ' A pat 2 56 0.38 A pat 3 2 0.51 AUGUST I, a, mill 3, 1802. Cloudy. AUGUST 4, 1853. i Chronometer time of transit. Planet— Star. Thermometers. I M f ' j Object. A. B. C. D. E. A a. A I. Air. Wet. s i s. s. s. s. 8. h. m. s. Rev. m. s. Rev. Inches. • ' i Venus . . . 8.F. 33.5 46.8 1.0 13.5 2 49 48.88 —4.57 28.096 37.5 36.6 3 Bessel ... 273 . . 15.5 38.0 40.5 53.0 2 5338.16 7.63 —3 39.30 +3.06 Ther. att. 3 Venus . . . N.F. 8.5 21.0 33.8 45.0 57.0 2 55 32.98 7.29 54°. 7 4 Bc.se! ... 273 46.5 59.5 12.0 24.0 36.5 2 59 11.70 7.731 3 38.74 0.441 Bar. red. to32°F. 28.029 5 Venus . . . 8.F. 45.5 57.5 10.5 22.5 35.0 3 3 10.30 4.36 6 Bessel ... 273 37.5 49.5 2.0 14.3 3 6 49.73 7.53 3 39.53 3.17 7 Venus . . . S.F. 5.0 17.3 39.3 41.5 53.5 3 8 29.32 4.071 80 Bewcl ... 273 44.3 58.0 8.5 21.0 33.5 3 13 8.66 —7.08 -3 3S.:i4 +3.001 292 INFERIOR CONJUNCTION OF VENUS, 1852, At'GCST 4. 188H— Continued. Remarks. Vrnur twinkling to the UH««>M. ,1 r\<-. N'< nhir rl.ji-ct was ever ibarp or steady. a Pi-rhaps * little open. Diameter of Vcniu from • mean of 6 measure*, at 3*. 23m. ild. lime, 3.917 rev. Corrected diameter, 54". 65. R lift. h. in. a. m. i. Rev. 1 V Mean X. F. . . One transit . . . . 9 55 31.96 — 338.74 . . +0.445 . . . . =0 8.67 Mean 8. P. . . Three transits . ..30 99.46 — 3 39.39 .... +3.078 . . . . =059.99 h. m. s. h. m. >. Correction for chronometer at 9 56 . . . . +41.10 9 56 14.06 Correction for chronometer at 3 0 . . . . +41.10 Santiago sid. time 8. F. . . . . 3 I 10.56 4 56.50 „ h. m. it 9.633 — 51 .33 A p at 9 58 . . . . . 0.09 Variation of declination in 4m. 56s. . + 0.58 . . 0.18 Corr. for diam. of micr. wires . . — 9.20 49. 08 AfGfST 5, 1832. There being an error of 10* In the computation of 14596 U. C., there U no comparing ttar for this day. The same star was also selected for the 6th of August. AVGVBT 7, 1832. Cirri prevented any star smaller than a 5th magnitude from being teen to the N. E. during the morning twilight. AUGUST 8, 1853. I e Object. Chronometer time of transit. Mean of wires Micr. Planet — Star. Bar. Thermometers. A. B. 0. D. E. A*. AS. Air. \\.l s. «. i. s. a. h. m. a. Rev. m. i. Rer. Inches. • • I Venu. . . . B.F. 13.0 25.6 37.5 49.5 9.5 3 46 37.6-3 -10.57 97.937 43.1 40.9 t 3 4 BcnH ... 973 Venus . . . N.F. BttMl ... 873 0.0 53.S 13.5 9.0 88.0 57.0 • • 33.5 50.5 9 53 8.93 9 50S5.54 3 953.96 + 6.18 -12.91 + 6. M -6 31.31 —6 31.44 -16.75 —19.96 Ther. att 51'. 1 Bar. red. to 3J- V. M -: Remarks. Object very badly defined, and the utar 10 dim that no reliance can be placet! on ihr measure!. Mtan 8. P. . . One transit . . Mean N. P. . . One tran.il . . h. m. Correction for chronometer at 9 47 . Correction for chronometer at 9 56 . A N. 8. llmbi mlcr. in m Variation of declination in 9m. 48«. Corr. for dlan. of nlcr. wires . Ofcwrvrd N. R. diameter ... Results. b. m. a. m. F. Rev. ; It . 9 46 37.69 — 6 31.31 .... —16.150 . . . . =596.46 . 9 56 95.54 — 6 31.44 .... —19.360 . . . . =6 15.38 s. h. m. a. . . +50.00 . i ' 1 1 1 1 • ,~ . r 9 47 37.62 . . +60.00 2 57 15.54 9 47.99 h. m. it 9.510=48.99 A f at 2 51 . . . . . . 1 36 — 1.37 A p nt 3 0 . . . 1.90 — 9.90 45.35 AT SANTIAGO DK CHILK. 293 AUGUST 9, 185%. A dense fog that rose immediately after the planet, prevented any objects from being seen near the horizon. AUGUST 1O, 1S53. The dense fog covering the city since yesterday morning broke away suddenly at 7A. sid. time. August 11 was cloudy. AUGUST 1%, 1893. 1 Chronometer time of transit. Planet— Star. Thermometers. Mean of wires. Micr. Bar. 1 Object. A. B. C. D. E. A a. AJ. Air. Wet. s m i i. *. s. 6. .. h. m. s. Eer. m. s. Rev. Inches. i | j Venus . . . N.F. 17.5 30.0 42.0 54.0 7.0 3 56 42.10 -1.811 / 28.253 37.8 36.7 3 Bessel ... 276 . . 10.5 23.5 36.0 48.5 2 59 23. 32 4.77 —2 41.42 +2.95i Ther. att. 3 Venus . . . S.F. 40.5 53.0 5.0 17.5 29.6 3 2 5.12 +0.93 51M 4 Besscl ... 376 • • 34.0 46.3 58.5 11.0 3 4 46.35 — 4.50J 241.23 5.43} Bur. red. to 32° F. 28.196 5 Venus . . N.F. 41.0 53.5 5.5 18.5 30.6 3 7 5.82 1.48 6 Bessel ... 276 30.5 32.6 44.5 56.5 9.0 3 9 44.62 4.56 338.80 3.08 7 Venu» . . . S.F. . . 39.6 51.5 3.5 16.5 3 11 51.67 +1.14, 8 Besiel ... 378 • • 80.2 32.5 44.5 3 14 33.40 —4.29 3 40.73 5.43} 1 Venus . . . N.F. 6.5 18.6 31.5 43.5 3 16 31.13 0.93 10 Bessel . . 276 • • 57.5 9.5 32.0 3 19 9.67 3.84} 238.55 2.91} 11 Venus . . . S.F. 6.5 19.0 31.5 44.1 58.0 3 21 31.43 +1.93 • Bessel ... 376 47.5 58.0 3 24 11.05 —3.34 3 39.64 5.27 13 Venus . . . N.F. 53.5 5.0 17.2 29.5 42.0 3 26 17.34 0.13 M Bessel ... 276 44.0 • • 7.5 31.0 338 56.03 2.74 338.79 3.63 15 a Venus . . . S.F. 41.5 53.3 r t 18.3 30.4 3 31 5.90 +3.09} 16 Bessel ... 276 • • • • 45.0 57.0 9.5 33344.97 —2.20 2 39.07 5.29} 17 Venus . . . N.F. 6.5 19.5 31.3 43.5 55.5 3 35 31.36 +0.85 18 Bessel ... 276 10.5 22.5 35.0 3 38 10.47 —1.77 —2 39.21 +2.62 Remarks. A good morning. Images not very sharp at first, bat quite satisfactory during the last observations by daylight. a By daylight. Diameter of Venus from a mean of 6 measures, at 3*. 49m. sid. time, 2.571 rev. Corrected diameter, 47". 91. M- an N. F. Me«n8. F. Five transits Four transits h. m. Correction for chronometer at 3 16 . Correction for chronometer at 3 17 . Results. h. m. >. 3 16 25.51 3 16 38.53 + 1 1.78 1.78 A N. B. limbs micr. In rev. . Variation of declination in 13t. Corr. for diam. of micr. wires Observed N. H. diameter . . 2.521=49.13 + 0.03 — 2.20 40.96 m. s. — 2 39.35 — 2 40.17 Her. + 2.838 + 5.309 = 0 55.31 •--= 1 44.45 h. in. >. Santiago sid. time N. F 3 17 27.29 Santiago sid. time S. F 3 17 40.31 Interval 13.02 h. m. // Apat3 19 o.ll A pat 3 19 o.Sl 204 INFERIOR CONJUNCTION OF VENDS, 1862, \t <.i vi n. IMS*. • ' U im»miiin<: i iiara wi uwi**t> ,• Mler. Bar. OH*M. A. B. C. D. E. A*. A t. Air. w.t. d -. 1. a. a. a. b. m. s. Rev. m. s. Rer. Inches. > 1 Venus . . . 8.P. 17.5 30.5 42.3 S5.0 7.5 9 50 42.56 —10.77 • . 39.7 3C.7 9. Be«wl . . . S76 • • • • 5.5 17.5 30.0 9 S3 5.08. -9 93.91 — 5.681 Tber. att. 54'. 7 3 Venus . . . N.P. 98.5 40.7 t 4.6 17.3 9 5559.80 13.59 Sv.nt 4« Beattl ... 978 50.9 9.3 14.5 97.0 39.5 9 58 14.70 5.16 991.90 8.35 i •- 5 Venus . . . 8.F. 17.0 99.6 43.3 . 7.0 3 0 42.03 10.91 6 B«M<1 ... 978 • • 48.5 0.5 13.6 98.1 3 3 0.57 5.17J 9 18.55 5.73, 7 Venn* . . . N.F. 48.5 59.0 11.3 93.5 35.8 3 5 11.93 13.46 •• BeaKl ... 978 • • • • 34.0 46.5 58.5 3 7 31.14 5.10 993.90 8.36 9 Venni . . . 8.P. ( 27.7 40.0 59.4 4.6 3 10 40.07 10.74 10 B.-.-.-I ... 976 34.3 46.9 59.0 11.0 91.0 :i 14 59.04 4.86 9 18.97 5.88 11 Venus . . . N.F. 46.0 58.5 10.6 93.3 35.0 3 16 10.88 13.81 11 Bes«el ... 976 5.0 16.5 99.5 • • • • 3 18 99.90 8.42, 9 18.53 8.38, 13 Venns . . . 8.F. 39.5 51.5 4.0 16.5 93.5 391 4.00 11.99 14 a BMW! ... 976 9.0 14.3 97.0 39.0 51.0 3 9396.66 5.49 993.66 5.87 Venus . . . N.F. 99.8 49.5 54.5 7.6 19.5 3 38 54.78 10.49, 98.050 40.9 37.0 • Bewel ... 976 . . IS 13.0 95.3 37.8 3 31 13.32 1.99 9 18.44 8.50) Ther. att - . . . 8.F. 43.0 58.6 8.5 91.0 33.0 3 33 8.49 7.41, 5T.6 - DCMCl • • • 976 3.6 16.0 98.0 40.5 52.5 3 35 98.12 1.41 9 19.70 6.00, Bar. red. to 3 : KM 11 Venus . . . N.F. 5.5 189 30.0 49.4 51.6 3 37 30.14 9.49 • Bessel ... 978 36.5 • • 1.0 13.5 3 39 48.87 - 1 . -9 18.73 -8.53 Remarks. Pharp images all tin- morning, but their cirri prevented the star from being seen under sufficient illumination for it* observation with mi-faction. At 3*. 93m. it was found that the hour circle clamp wa« not fast, and, therefore, the differences of R. A. marked a are wrong, and are omitted in the results. Diameter of Venus from a mean of lit measure', nt 3*. 46m. sid. time, 9.598 rev. Corrected diameter, 48''. 43. Mean B. F. Man N. T. Correction for chronometer at 3 15 Correction for chronometer at 3 98 A 1*. B. Umbpmicr. in n v. . Variation of declination in 14m. 4* Corr. for diani. of micr. wirei Obtenred N. 8. diameter Results. b. m. a. m. «. ' / raniiiti . . . 3 14 50.17 — 9 19.07 .... —5.873 . , . . =1 54.47 raniiu . , . 39731.87 — a 18.56 .... —8.473 . , , . . =945.14 h. m. m. i. h. m. a. • at 3 15 . . . + 1 4.70 Santiago lid. time 8. F . . 3 15 64.87 . • .. . . . +1 4.79 Santiago nid. time N. F. . . . , . . 3 98 36.59 . . 19 41.73 „ h. m. IT 3.600 = 50.67 . . . 0.94 12m. 4*. . . 1.93 .... 0.31 rex . . — 9.90 46 54 ACGCgT 14, 185JI. • in account of thin cirri, the comparison star conld not be seen under Illumination. ACUCBT 19, ISA*. Cloudy. AT SANTIAGO DE CHILE. 295 AUGUST 16, 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A S. Air. Wet. i. s. s. s. s. h. m. 8. Rev. m. s. Rev. Inches. • « 1 Venus . . . S F. t t 5.5 17.6 30.0 42.5 3 3 17.79 —4.70} 28.025 51.5 47.8 2 Bessel ... 276 51.8 4.5 1C. 5 29.0 41.5 3 6 16.66 +-I.6Q} —2 58.67 —9.33 3 4 5 Venus . . . N.F. Bessel . . . 276 Venus . . . S.F. 31.5 55.5 44.0 42.3 8.0 56.0 20.5 8.5 32.5 21.0 18.5 44.7 3 8 56.20 3 11 54.29 3 14 20.24 —6.96} +4.90 —4.14} 2 58.09 11.86} Ther. an. 56° .0 Bar. rod. to 32° F. 27.954 6 Bessel ... 276 • • • • 17.5 3 17 17.48 +5.28 2 57.24 9.42} 7 Venus . . . N.F 35.3 48.0 0.0 12.5 24.6 3 21 0.08 -5.94 8 Bessel ... 276 33.5 45.5 58.0 22.5 3 23 57.92 +5.96 2 57.84 11.90 9 Venus . . . S.F. . . 47.5 59.2 11.5 23.5 3 25 59.31 —3.19 X 10 Bessel ... 276 33.0 58.6 9.0 01 .4 338 56.94 +6.39 2 57.63 9.58 11 Venus . . . N.P. 5.5 17.5 29.6 42.5 3 3-2 17.66 —5.00 13 Bessel ... 276 51.0 2.6 15.0 27.5 40.0 3 35 15.22 +7.02} 2 57.56 is.eq 13 Venus . . . S.F. 7.5 19.6 31.9 44.0 56. 5 3 39 31.90 —1.99 14 Bessel ... 276 4.5 17.0 29.5 41.5 54.0 3 43 29.30 +7.71 2 57.40 9.70 15 Venus . . . N.F. 13.5 26.5 38.5 50.6 3.0 3 44 38.42 —3.84} 16 Bessel ... 276 • • 94.0 36.9 • • 0.5 3 47 36.15 +8.36} —3 57.73 —12.21 Remarks, Cirri prevented the star from being seen under the micrometer wire with sufficient distinctness to observe differences of R. A. accurately. Only the last two observations had sharp images. a Very much blum-rl. 6 Daylight. Diameter of Venus from a mean of 6 measures, at 3A. 53)m. sid. time, 2.354 rev. Corrected diameter, 43" .68. Results. • h. m. s. m. s. Rev. / /; Mean S.F. . . Four transits . . . 3 20 47.21 — 2 57.78 . . . . + 9.509 . . . . =3 5.33 Mean N. F. . . Four transits . . . 3 26 43.09 — 2 57.78 .... +12.000 . . . . =3 53.86 h. m nf. i. h. m. 8. Correction for chronometer at 3 30 . + 1 10.34 . . 3 21 57.55 Correction for chronometer at 3 26 . . . +1 10.35 ^inti;i:o sid. time N. F . . 3 27 53.44 , . 5 55.89 // )>. m. n A N. S. limbs micr. in rev. . . . . . 3.491=48.55 .... 0.38 Variation of declination in 5m. 56*. . . — 0.87 .... 0.43 Corr. for diam. of micr. wires . . . — 2.20 45.4? No. for reference. Object. Chronometer time of transit Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. A X 37 X X* 40 41 49 at 44 4*1 4* 47t 48 49 1 M « Veaai N F 37 0 3 4 38.96 —16.09 2.C9 —13.33 11.03| 13.2C1 11.18i 13.39 11.131 13.98 11.151 13.34 11.96 13.39 11.37 13.551 11.671 13.681 11.441 13.63 11.591 13.711 11.461 13.731 11.. V, —13.80 Thrr. Ml. 47'. 1 Bar. red. to 32- f. 38.110 35.0 34.6 Btmtl . . . S73 Vrnus . . . 8.F. S3.5 • • • • 3 853.48 13.58J 9.55 Vcnm . . . N F 36.9 3 11 35.18 15.721 9.46 BMM! ... 373 Vena* . . . B F 7.J 3 14 7.48 13.50 j.mj Venai . N F 48 3 3 1C 46.38 3 1C 59.48 3 19 10.48 3 19 33.98 3 21 57.48 3 22 10.48 32538.68 335 41.78 3 28 17. « 3 38 30.48 3 33 94.58 3 33 37.48 3 35 57.48 3 36 9.48 33830.38 33833.18 3 41 45.98 3 41 S7.98 i 3 44 15.08 3 44 26.48 3 47 13.98 3 47 94.58 3 SO 9.48 35090.48 3 53 25.98 35336.98 35635.48 358 33.93 35945.48 15.53 9.30 13.18( 3 05 15.86 1.98 U.8SJ 1.70 14.80 1.46 12.14 0.88 14.10 0.71 11.89 0.59 13.69| 0.07 -11.34 + 0.331 —13.17 + o.su —10.64 + 0.80J —11.15 + 9.47 -8.59 + 9.93* -10.48 4- 3 23' —13.20 13.50 13.00 13.10 13.00 12.90 13.00 11.80 13.00 11.40 10.60 11.00 11.00 10.50 Btmel ... 273 Venus . 8 F • • • • 59.5 10 5 • • • • Btmel . . . SJ3 \ttau . . . N.F. BOK! ... 373 Venui . . . 8.F. Dtnel . . . 2T3 Vrnu« . . . K.F. • • • * • • 94.0 57.5 10.5 28.7 41.8 17.5 • p , Bowel ... 373 Vrnui . . . 8.F. Be«el . . . 273 Venal . . . N.F. BMd ... 973 Venai . . 8 F • • • • 30.5 M.6 37.5 57.5 9.5 30.4 • • • • Bewel ... 373 • • 9.3 46 0 • • • • BwKl ... 273 Venai . . . 8.P. BaMl . . 973 Venal . . . N F • • • • 56.0 15.1 2S.5 14.0 • • • • Bawl . . . 873 : ' : ' 21.6 • • ' BWM! ... 973 Vein . . . N.F. ; 90.5 39.0 Bend ... 973 . - - - 37.0 Vena. . . S.V. •••Ml ... 973 Venn* . . . K.F. • • • • 2S.5 36.0 45.5 • • • • Bewcl . . . 973 Venui . . S.F. Bcnel ... 273 V.nai . . . K.F. Benet . . . 373 Vran« . . . RF. • • • • 8.0 • • • • 4 9 7.98 -7.78. ' • • ' 94.0 41 3 • • • • 4 4 33.98 4 6 44.98 1 9 4.S8 4 9 14.48 - 9.64 + 4.08J -7.90J + 4.34J - 9.19 + 4.68 — 9.90 i . . Veni . . . N.F. . . 4 « ! •••Ml . . . 973 • • 14.5 . . AT SANTIAGO DE CHILE. AUGUST 31, 1852— Continued. Remarks. Fine clear morning. Tolerably sharp images and fair observations throughout. a Daylight. 4 Omitted in the results. Diameter of Venus from a mean of 6 measures, at 4A. 14m. sid. time, 2.249 rev. Corrected diameter 41".63. 297 Mean of three measures for N. F Mean of four measures for 8. F. . MeanN. F. . . Be Mean 8. F. . . Be Correction for chronometer at 3 Correction for chronometer at 3 A N. 8. limbs micr. in rev. Variation of declination in 15i. Corr. for diam. of micr. wires Observed N. S. diameter Correction for chronometer at 3 35 Correction for chronometer at 3 38 A N. 8. limbs micr. in rev. Variation of declination in 3m. Corr. for diam. of micr. wires Observed N. 8. diameter Results. h. m. s. s. Rev. 1 H ' N F 3 4 38 21 13.298 . . . — 4 19.18 - F 3 4 52 80 11.051 . . . 3 35.38 (•Mitt . . 3 35 3.52 — 12.11 .... 13.456 . . . 4 22.26 ransitri . . . 3 38 10.60 — 12.03 .... —11.365 . . . . =341.50 h. m. m. s. X h. ra. s. at 3 5 _i_ i 27.96 3 6 6.17 at 3 5 -f- 1 27.96 . 3 6 20.76 14.59 _ h. m. 2.247 = 43.79 . . . 0.93 15*. . . -f 0.03 . . . 0.77 a ... — 2.20 41 62 h. ra. m. 8. h. m. B. at 3 35 . . • + 1 28.03 3 36 31.55 at 3 38 . . . + 1 28.03 3 39 38.63 3 7.08 n h. m. n . 3.091 =40.75 A f at 3 37 . . . 0.48 3m. 7i. . . + 0.37 A p at 3 40 . . . 0.39 el ... — 2.20 . . . 38.92 M <.l sT Mi. 18S3. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. An. Ad. Air. Wet. t. s. s. s. 8. h. m. s. Rev. s. Rev. Inches. | « 1 Bessel ... 273 . 3.5 . . 3 25 3.48 — 15.35J 27.942 31.0 33.4 3 Venus . . . N.F. . . . . 91.5 . . . . 3 25 21.48 8.12 +18.00 +7.23J 3 4 5 6 7 8a Bessel . . . 373 Vcnui . . 8.P. Bessel . . . 873 Venus . . . N.F. Bessel ... 273 Veuui . . . S.F. 57.3 59.5 3 28 21.78 3 28 40.48 3 31 23.98 3 31 43.18 14.02 4.63 14.77 7.61 14.35 4.86 18;70 19.20 9.39 7.16 9.49 Ther. att. 52°. 9 Bar. rod. to 32° F. 27.880 • • 40.5 • • • • 43.2 • . 46.5 . . . . 3 34 46.48 9 Bessel ... 273 9.5 . 3 38 33.98 14.08 10 11 12 a 13 14 a Venus . . . N.F. Bessel ... 273 Venus . . . S.F. Bessel ... 273 Venus . . . N.F. 52.5 • • • • 3 38 52.48 6.81 13.56 4.25 13.33 — 6.26i +18.50 7.27 9.31 +7.06, • • 54.3 • • • • 3 42 54.28 • • 56.0 3 45 55.98 88' 298 INFERIOR CONJUNCTION OF VENUS, 1862, AVGC8T 11, 1831-Conlliuir.l. Remarks. The planet was M rerj badly defined and unsteady that il nru impowiblc lo make even a iccond rate measure. The star It extremely imall for a *h magnitude. Tnert » another pne«dln| it, and KMne 18 r.-voliition. farther north. a Omitted in the reiulu. Btmto. Mean 8. T. Mean N. F. Correction for chronometer at 3 89 Correction for chronometer at 3 33 AN. 8. limbs mlcr. in rev. Variation of declination in 3m. 19s. Corr. for dlam. of micr. wires . Obtcnred N. 8. diameter ranril . . •tranilu . h. m. •r at 3 20 . h. m. r. . . 3 X 40.48 . . 3 31 49.05 m. «. . . +1 31.58 ». Rrv. + 18.70 .... +9.390 . . + 18.57 .... +7.999 . . . . =3 3.01 . . = 9 90.78 h. m. a. . . 3 30 19.00 •r at 3 33 . . . +1 31.58 Hantiago nd. time \. F . . 3 33 .10.63 . . 3 18.57 H . 9. 168 — 45.25 h. m. A f at 3 30 n .... 0.40 I 3m. 19s. . — 0.35 A p at 3 33 .... . . . . . . 0.98 ires . . . — 9.90 39.10 AUGUST 33, 185*. No. for reference. Object. Chronometer time of transit. Mean of wire*. Micr. Planet— Star. Bar. Thermometers. A. B. V. 0. E. At. A t. Air. HYt. Rev. m. s. Rev. Inches. • • 1 9o Benel . . . 973 Venus . . . 8.F. -7.40, 5.86 +1.54J IT.I I 40.0 39.3 57.6 9.0 91.5 . . 339 9.37 3 4 5 newel ... 973 Venus . . . N.F. Bevel ... 973 53.5 3.8 15.0 16.0 20.0 • • 334 9.78 3 36 4.10 338 7.78 7.01 7.76J 6.55 +9 1.39 -0.75J Ther. all. 5-2° . 1 Bar. red. to 33' F. 97.991 6 Venui . . . B.F. • • 58.5 8.5 90.6 • • 3 40 8.53 5.19 9 0.75 + 1.43 7 Bewel ... 973 . , . . 19.9 31.0 . . 3 49 18.98 6.06 8 Venus . . . N.F. • • 8.8 90.7 33.0 3 44 90.83 6.95 9 1.85 -0.89 9 Bewel ... 973 t 97.1 t f 50.5 t 346 38.89 5.34 Venus . . . N.F. • • 98.5 40.3 59.5 • • 3 48 40.43 6.13 9 1.61 —0.79 11 BMMl ... 973 t t 39.5 f . 3.5 g t 35051.59 4.87 19 V«nus . . . B.F. • • 40.8 59.7 5.0 • • 35959.83 —3.49 +9 1.31 +1.38 Remarks. Same remarks as yesterday, only, If possible, there Is a worse condition of the atmosphere. The star is at least H magnitude smaller than the one In A. R. 8*. 33m. 18>. ± dec. + 15* 58'. a Omitted in the results. Results. Mean N. F. . . Three tran»lu . Mean 8. F. . . Two transits h. m. Correction for chronometer at 3 43 . h. m. s. . . 3 43 1.79 . . 3 46 30.68 in. s. . . + 1 34.05 m. a. Rsv. + 9 1.59 . . . . —0.819 + 9 1.03 .... +1.405 t n . . . . =015.83 . . . . =097.39 h. m. a. . . . . 3 44 35.84 Correction for chronometer at 3 46 . . . + 1 34.05 Santiago sid. time 8. F. . . . . . . 3 48 4.53 .... 3 38.89 A N. 8. limb* micr. in rev. . s. . 9.917 — 43.99 h. m. A f at 3 44 n 0.03 Variation of declination In .1m. 99>. . + 0.34 4 p at 3 47 0.05 Corr. for diam. of micr. wires . . . <"H»*rvrd N. 8. diameter .... — 9.90 41. M AT SANTIAGO DE CHILE. 299 AUGI'ST US, 1853. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. thermometers. A. B. C. D. E. A a. A (5. Air. Wet. s. s. B. s. s. h. m. s. Rev. m. s. Rev. Inches. • • 1 B.C. . . . 15338 22.5 34.6 47.0 3 52 34.70 — 5.2Ii 28.097 43.1 40.6 2 Venus . . . N.F. . . 34.0 45.7 57.8 10.5 3 53 45.87 7.41, +1 11.17 —2.20 3 4 5 B.C. . . . 15338 Venus . . . S.F. B.C. . . . 15338 30.3 21.5 33.7 12.5 33.7 44.8 24.6 46.0 57.2 37.0 9.5 3 55 33.73 3 56 44.90 3 £8 24.70 4.72 4.85 ,4.35 1 11.17 0.13 Ther. att. 51°. 7 Btir. rt'd. to 32" F. 28.028 6 Venus . . . N.F. 10.6 23.5 35.5 47.8 0.6 3 59 35.60 6. GO; 1 10.90 3.25J 7a H.C. . . . 15338 30.5 43.5 4 1 43.61 4.07 8 96 10 Venus . . . S.F. H.C. . . . 15338 39.3 41.9 36.6 54.0 49.0 1.5 6.4 1.3 18.5 2S.O 4 3 54.03 4 10 48.93 4 13 1.49 4.33 3.02 5.31 1 11.41 1 13.56 0.25 2.29 Venus . . . N.F. 11 H. C. . . . 15338 12.5 25.0 37.2 . 4 18 24.90 2.16 12 Venus . . , S.F. 13.0 25.6 38.0 50.3 2.5 4 19 37.88 2.37J 1 12.98 0.211 13 H. C. . . . 1533S 90.5 33.8 4 21 20.52 1.81 14 Venus . . . N.F. 9.5 93.0 34.3 46.4 58.8 4 23 34.20 I —4.25 +1 13.68 —2.44 Remarks. Cleared for a little while at time*, though there never was a sharp image of the planet, a Obscured by clouds. * Daylight. Results. * b. m. s. m. s. Rev. i H Mean S. F. . . . Three transits . . 4 « 35.60 + 1 11.85 .... —0.198 . . . . =0 3.88 Mean N. F. . . . Four transit." . ..46 59.39 + 1 13.08 .... —2.296 . . . . =044.75 h. ra. m. s. b. m. •. Correction for chronometer at 4 6 . . . +1 56.31 4 8 21.91 Correction for chronometer at 4 7 . . . +1 56.31 4 8 55.60 33.69 „ b. m. // A N. 8. limbs micr. in rev. .... . 2.098 — 40.88 . . . 0.06 Variation of declination in 34». — 0.03 . . . 0.00 Corr. for diani. of micr. wires . . . — 3.90 Observed N. 8. diameter .... 38.66 AUGUST 31, 1833. u „ No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E. A a. Aj. Air. Wet. s. s. s. 8. •. h. m. s. Rev. m. B. Rev. Inches. • * 56.0 3 45 55.98 —3.45 —7.99 28.077 Ther. »tt. 52°. 1 47.4 45.5 Bessel ... 373 Remarks. There wan never an image which could be measured within 2", the planet appearing as if floating in disturbed mercury up to \k. sid. time. Star not vislblt under illumination until the planet had passed out of the Held. Gave up the attempt to measure in despair. too INFERIOR CONJUNCTION OF VENUS, 1852, SEPTEMBER 1, 185*. Chronometer lime of lnu»il. MM r Planet — Star. Bar 1 . • :• MM -• MfML A. B. C. D. E. A«. A A Air. Wet. 1 - p .. l\ . • • • i 1 Bevel ... 873 57.5 9.5 91.5 . 3 57 9.50 +3.99 98.180 40.8 38.9 9 Venui . . . B.F. 10.0 91.7 34.6 47.9 59.5 35934.80 -5.13 -«.3S Ther. all. 3 Bmel ... 873 16.0 41.5 53.5 4 9 41.08 +4.17 53-. 1 4 VMM. . . N.F 41.7 53.8 6.5 19.5 31.9 4 5 6.54 -6.10 325.46 10.97 Bar. red. to • I'. 98.118 | I . 573 46.8 19.5 4 7 59.67 +4. 70J 8 Venn . . . S.F. 1.0 13.0 9S.3 38.2 50.0 4 10 25.50 —3.85 1 H.t : 8.554 7 Bevel . . . 273 40.5 53.0 5.0 18.5 . . 4 14 5.37 +4.97 8 Veniu . . . N.F. 7.5 S0.3 39.5 455 57.8 4 16 33.72 —5.33 -• •'.'.. • 10.30 9a Bend ... 373 2.5 14.0 96.5 . . 4 19 14.33 +5.84 10 Veniu . . . S.F. 16.5 39.0 41.9 54.5 6.5 4 31 41.60 -3.45 937.97 8.99 lit Bcwl ... 973 f 32.0 44.0 ( . M 495 44.11 +7.16 \>nu« . . . N.F. 47.5 0.0 19.3 35.0 36.8 4 38 19.39 -3.34J +9 98.21 —10.501 : Remarks. Quite kliarp and vleady image* ; and the observations might have been tommenced rarlicr. hut that the oil was so confcalcd thr h nips would not burn. a Good measures. 6 Good measures. Daylight. Diameter of Veniu I'rom a mean of 6 nieuuro, at 4*. 42m. fit. time, 1 .868 rev. Corrected diameter, 34 .-Ji . Mean 8. F. Mean N. F. Three transit* Three tnuuiu h. in. Correction for chronometer at 4 1 1 . Correction for chronometer at 4 17 . A N. B. limbs inicr. in rev. . . Variation of •!• • Iin-iimn in 6m. 3f. t'orr. lor dum. ot IIIMT. wire* i d N. B. diameter . . . Retult*. h. in. s. . 4 10 33.97 . 4 16 37.19 III. 8. . +2 6.11 in. s. Rev. + 2 28.13 .... — 8.398 . + 2 37.01 .... —10.358 . / it . . . =343.68 . . . =321.88 h. m. a. . +2 6.10 Santiago sid. lime N. F. 4 18 43 29 . . 6 3 21 1.960—38.20 h. m. A put 4 11 0.96 + 0.05 A p at 4 17 0 29 — 2.30 36.05 SEPTEMBER Ji, 1899. j Chronometer time of transit. Planet— Star. Thermometer*. -: Object A. B. C. D. E. A«. A i. Air. Wet. 2 i a. a. - - a* h. m. a. Rev. m. a. ROT. Inchea. • i •ami ... 973 44 5 56 * 3 33 31 89 9 Vema . . . 8.F. 10.1 93.3 3S.S 48.0 o.a 3 38 35.44 -9.71 +5 3.55 -7.12 3 Bwad ... 973 35.0 47.5 0.5 19.5 3 41 47 75 +4.78 Ther. alt. 50'. 7 4 Venus . . . N.F. 97.5 40.0 59.5 5.0 17.5 3 46 59.50 -4.36 S 4.75 9.14 Bar. red. in I r. 5 •wad ... 973 55.0 7.8 90.0 33.0 45.5 35090.96 +5.61 m • V«MW . . . S.F. 0.8 13. 9 96.0 39.3 51.0 35598.06 -1.65 5 5.80 7.96 7. •wad ... 973 30.6 43.0 55.0 8.0 90.9 3 57 5J.36 +6.37 a Venn. . . . N.F. 37.5 50. 1 9.5 15.4 97.5 4 3 9.60 +5 7.94 -9.2SJ AT SANTIAGO DE CHILE. 301 SEPTEMBER a, 1853— Continued. o g Chronometer time of transit. Planet— Star. Thermometers. M "u of w'rps Micr £ £ Object. A. 0. C. D. B.' A a. A. I. Air. Wet. 8 1 8. 8. s. s. 8. b. in. s. Her. III. B. Rev. Inches. • • 9 II.— H ... 373 7.0 19.5 32.0 44.0 4 8 19.50 +2.95 28.140 38.1 37.8 10 Venus . . . 8. P. 2.5 15.0 27.5 40.4 52.5 4 13 27.58 —4.19 +5 8.08 —7.15 Thcr. att. 11 Bessel ... 073 43.5 55.5 8.0 21.0 33.0 4 16 8.20 +4.21 50°. 7 13 Venus . . . N.F. 52.0 4.5 16.5 29.5 41.5 4 21 16.80 —4.96 5 8.60 9.17 Bar. red. to 32° F. 28.085 13 i Bessel . . . 273 31.0 43.5 56.0 8.5 21.0 4 94 56.00 +5. 10t 14 Venus . . . S.F. 41.0 53.5 6.0 18.8 30.6 4 30 5.98 —2.25 5 9.98 7.351 It Benel ... 273 50.2 3.0 15.5 27.5 4 37 2.93 +6.331 16 Venus . . . N.F. 49.6 2.0 14.5 27.3 39.0 4 43 14.48 —2.89 +5/J1.55 — 9.22J Remarks. Itlurred and unsteady images during the first three measures. a Sharp and good. b Daylight. Mean S. F. . . . Four transits b. m. s. ..44 23.76 Results. m. s. Rev. + 5 6.85 .... 7.321 . — 2 20 74 Mean N. F. ... Four transits . . 4 13 21.59 + 5 8.03 .... 9 190 h. m. m. s. . . +2 8.55 h. m. s. . 4 6 32 31 Correction for chronometer at 4 13 . . . +2 8.56 Santiago sid. lime N. F . 4 15 30.15 A N. S. limbs uricr. in rev. . . . . 1.969 — 38.38 h. m. A pat 4 4 ii . . . 0.26 Variation of declination in 8m. 58i. . + 0.30 A f at 4 13 . . . 0.29 Corr. for diam. of micr. wires . . Observed N. 8. diameter . — 3.20 36.38 .-KPTKMHKU 3, 1KV.J. s Chronometer time of transit. Planet— Star. Thermometers. £ Object. A. B. C. D. E. A a. A 1. Air. Wet. s 6 s. B. «. s. s. h. m. a. Rev. m. s. Rev. Inches. • • la Venus . . . N.F. 27.5 40.0 52.5 4.5 16.5 3 41 53.20 +3.52 28.119 47.7 46.0 2 H. C. . . . 16068 30.5 44.0 56.0 8.5 21.0 3 45 56.00 —9.17 —4 3.80 + 12.69 Ther. att. 3 Venus . . . S.F. 24.5 37.2 49.6 2.8 15.2 3 49 49.86 +5.77 55". 2 4 H. C. . . . 16068 26.5 3 53 51.00 —8.89 4 1.14 14.66 Bar. reel, to 32° F. 28.051 5 Venus . . . N.F. . . 16.2 28.8 41.0 . . 3 58 28.67 +4.84 6 B.C. ... 16068 5.0 17.5 30.0 43.0 54.5 4 2 30.00 -7.95 4 1.33 12.79 1b Venus . . . S.F. 31.5 42.5 55.0 8.5 19.7 4 4 55.44 +7.371 S H. C. . . . 16068 31.5 56.0 10.3 21.0 4 856.64 —7.271 4 1.20 14.65 9 Venus . . . N.F. 1.7 14.5 26.5 40.0 51.5 4 11 26.84 +6.061 10 H. C. . . . 16068 2.5 15.5 27.5 41.2 52.0 4 15 27.74 —6.72 4 0.90 12.781 11 Venus . . . S.F. 29.5 41.8 54.0 7.5 19.3 4 17 54.40 +8.54J 13 11. U. . . . 16068 39.7 42.0 54.3 8.5 19.5 4 21 54.80 —6.04 —4 0.40 +14.581 502 INFERIOR CONJUNCTION OF VENUS, 1862, SEPTKMIIKR 3, 1 8 S»— Continued . ! i 4 Object. Chronometer line of lran.it. Mean of wire.. Micr. Planet-Star. Bar. 1 : . .<•'•- A. B. C. D. E. A«. A. s. i. h. m. a. Rev. m. ». Bev. Inches. • • 13 c M Ut 16 r 17 I» M Venm . . . N.F. II. r. . . . 160(8 Vrnus . . . B.F. II. C. . . . 16N8 Vrtiu* . . N.F. 94.5 53.5 3J.O 30.5 6.5 6.5 44.3 43.0 19.0 18.5 56.5 55.3 33.5 33.0 15.3 12.5 39.5 33.5 10..', 9.5 47.6 46.0 89.0 96.5 43.5 43.0 21.5 90.5 58.5 56.9 40.9 37.0 4 M 19.90 4 98 18.60 4 3056.96 4 34 55.76 4 9934.98 4 4039.08 4 49 15.80 4 46 19.80 + 7.39 -5.48J + 9.78 — 4.93 + 8.59 — 4.33 +10.96, — 3.73 —359.60 358.80 357.80 —3 57.00 +12.80, 14.71 19.99 +14.691 as. ii9 Th»r. an. 55'.2 i;.- ... , t :: i 47.7 46.0 . . . 16068 Vcnui . . . 8.F. II. l\ . . . 16068 6.7 47.5 19.5 3.3 0.5 Remarks. Imagei not very §h»rp. though Die measures bave generally been satisfactory. Lalande's magnitudes are full 1 greater tban Bowel's, a Recorded 50. 5>. at wire C. • Tolerably sharp. i A hair was found on the inner lens of the eye-piece, , t Daylight. holding wire D out of place. r Recorded 19. St. at wire E. Results. Mean N. F. Mean 8. F. Five transits Five transits h. m. Correction for chronometer at 4 11 Correction for chronometer at 4 17 A N. 8. limb* mirr. in rev. . . . Variation of declination in 6m. 38>. Corr. for diam. of inter, wire* . . Observed N. 8. diameter . . . h. m. >. 4 10 33.16 4 17 10.49 B. + 2 11.31 + 9 11.32 1.862 = 36.99 - 0.98 - 9.90 33.83 m. s. — 4 0.65 — 3 59.71 Rev. + 19.798 + 14.660 = 4 9.43 = 4 45.79 b. m. s. Santiago sid. time N. F 4 19 43.47 Santiago Bid. time 8. F 41921.81 Interval 6 38.34 h. m. " A f at 4 15 0.41 A pat 4 21 0.43 SEPTEMBER 6, 1859. 1 Chronometer time of tran.it. btpn n nf wlr*» M(*r Planet-Star. D_- Thermometers. h Object. A. B. C. D. E. TicQn 01 wires. micr. A«. Ad. OATi Air. Wet. 1 d a. B. s. B. B. h. m. B. Rev. m. B. Rev. Inches. • • X 1 Venus. . . N.F. 1.3 13.5 95.9 38.1 50.5 4 9 95.86 —6.36 98.156 39.0 38.1 1 B*»el ... 973 43.5 . . 7.6 20.0 39.5 4 4 7.84 6.49 -I 41.98 +0.06 Ther. alt. 3 Venu . . . 8.F. 6.8 19.1 31.5 43.0 56.0 4 6 31.98 4.00 59-. 9 4 Bowl . . 973 48.8 0.5 13.0 95.3 38.0 4 8 13.08 5.93J 1 41.80 1.931 Bar. red. to W F. .,..„;,, 3 Venus . . . N.F. 40.0 69.5 4.7 17.0 99.5 4 10 4.74 5.37 • BwMl ... 973 91.5 33.5 45.7 57.7 10.5 4 11 45.78 5.58 1 41.04 0.91 7 \>nu. . . . B.F. 96.5 38.6 51.0 3.0 15.8 4 13 50.98 3.17 • ••awl ... 973 • • 90.0 31.8 44.5 • • 4 15 39.10 • 5.19, 1 41.19 9.09J • V«ns . . . N.F. 53.5 6.0 18.9 30.5 49.8 4 17 18.20 4.71 10 BMM! ... 973 34.0 41.5 69.0 10.5 • • 4 16 58.60 —5.00 J-l 40.40 +0.29 AT SANTIAGO DE CHILE. 303 SEPTEMBER 6, 1853— Continued. No. for reference. Object. Chronometer time of transit. Mean of wires. Micr. Planet— Star. Bar. Thermometers. A. B. C. D. E.- A a. A {. Air. Wet. s. 8. 9. 8. 8. b. m. s. Rev. m. s. Rev. Inches. • • 11 Venaa . . . S.F. 31.5 44.0 56.3 8.4 21.0 4 21 56.24 —2.38 28.156 39.0 38.1 13 I!> --<•! . . . 273 11.7 23.8 36.0 49.0 1.5 4 23 36.40 4.42 —1 40.16 +2.04 13 14 15 Venus . . . N.F. Bessel ... 273 Venus . . . S.F. 9.5 49.0 34.5 33.0 1.2 47.0 34.0 13.6 £9.3 46.3 25.8 11.3 59.0 38.2 23.6 4 25 34.36 4 27 13.56 4 28 59.14 3.86 4.19J 1.72 1 39.20 0.33£ Ther. alt. 53°. 9 Bar. red. to 32° F. 28.094 16 Bessel ... 2:3 13.5 25.5 38.0 51.0 3.0 4 30 38.20 3.65 1 39.06 1.93 17 Venus . . . N.F. 24.5 37.0 49.3 1.5 14.0 4 3-2 49.36 3.06 18 Bessel ... 273 15.7 28.0 40.2 52.5 4 34 27.98 3.29* 1 JJ8.72 0.23} 19 a Venus . . . S.F. 5.3 17.7 29.8 42.0 54.5 4 36 29.86 1.05 20 Bessel ... 293 43.5 53.5 • • 20.0 32.5 4 38 7.67 —3.04 —1 38.01 +1.99 Remarks. Star excessively dim. Never « sharp or steady image, a Daylight. Reiults. Mean N. F. . . . Five transits . Mean S. F. . . . Five transits . h. m. Correction for chronometer at 4 18 . Correction for chronometer at 4 22 h. m. s. 4 17 38.48 4 21 33.50 m. *. + 2 18.05 + S 18.05 A N. S. limbs micr. in rev. . . . Variation of declination in 3m. 55f. Corr. for diam. of micr. wires . Observed N. S. diameter . 1.758 = 34.26 — 0.33 — 2.20 31.73 m. s. — 1 40.27 — 1 40.03 Rev. + 0.228 + 1.984 = 0 4.40 = 0 38.67 h. m. s. Santiago Bid. time N. F 41956.53 Santiago eid. time 8. F 42351.55 Interval 3 55.02 b. m. " A pat 4 21 0.01 A pat 4 25 0.06 SEPTEMBER 1, IHS't. £ Chronometer time of transit. 1 Planet— Star. Thermometers. ^ Mean of wirpd Micr S Object. A. B. C. D. E. A a. A* Air. Wet. g '! s. s. s. s. s. h. m. ». Rev. m. a. Rev. Inches. • | i Bessel ... 273 2.0 15.0 26.5 38.5 3 57 14.38 — 5.62i 28.124 44.9 41.6 2 Venus . . . N.F. . . 29.5 35.0 47.0 59.0 3 58 34.75 +1.66 +1 20.37 +7.281 Ther. att. 3 Bessel ... 273 . , . . 26.5 52.0 4 4 27.03 — 5.03J 54°. 0 4 Venus . . . B.F. 24.3 36.5 48.5 13.5 4 5 48.76 +4.21 1 21.74 0 OJl B!ln "'''• *•"*» to 33° F. 28.059 5 BesKl ... 273 39.5 51.5 4.0 . . 4 8 51.50 -4.41 6 Venus . . . N.F. 49.0 1.3 13.3 25.0 38.1 4 10 13.34 +2.9Pt 1 21.84 7.391 7 Bessel . . . 273 ( 51.0 3.0 15.5 t . 4 13 3.00 —3.86 8 Venns . . . S.F. 0.0 13.4 25.6 37.6 50.3 4 14 25.38 +5.33 1 22.38 9.18 9 B«»el ... 873 , , 23.5 36.5 48.0 4 17 36.50 — 3.62J 10 Venus . . . N.F. 34.0 .46.0 58.S 11.0 23.6 4 18 58.56 +3.75 +1 22.06 +7.37* :504 INFERIOR CONJUNCTION OF VENUS, 1852, SEPTEMBER 7, 1NS4-* oullnii. .1. pUuct Sur. \I Micr Bar . Object. A. B. c. D. B. Am. A*. Air. Wet • • 4 11 B«Hl . . . 973 . 93.5 36.0 . t 4 31 35.77 -3.34 .-.;.-! 44.9 41.6 n Vrnu. . . . 8.F. 33.7 46.8 59.0 11.3 93.6 43958.66 +5.85 fl 93.0> +9.19 13 Bowl ... 373 11.0 33.0 35.9 49893.07 —9.60 Tber. an 54-.0 14 Venm . . . N.F. •J 34.5 46.8 . . 10.5 497 46.56 +4.63 1 33.49 7.43 Bar. red. r. t: \ . N.M IS B«M| ... 973 . . 53.5 5.5 18.0 . . 4 39 5.67 —1.81 16 Vena. . . . 8.F. 5.5 18.S 30.3 43.5 55.0 4 33 30.30 +7.40 , 1 94.63 +9.91 Remarks. Planet no blurred and unsteady, and iiar m dimly aeen through the haxe, that the measures have scarcely been worth copying. h. m. 8. Mean N. F. . . Four transit* . . . 4 13 53.40 Mean 8. F. . . Four transiu . . . 4 19 10.83 h. m. m. B. Correction for chronometer at 4 14 . . + 3 21.16 Correction for chronometer at 4 19 + 2 91.17 A N. 8. limb. micr. In rev 1.835 = 35.76 Variation of declination in 5m. 17t. . . — 0.53 Corr. for diam. of micr. wires .... — 9.90 Observed N. 8. diameter . 33.03 m. s. Rev. + 121.94 . . . +7.371 .... =993.66 + 122.36 . . . +9.906 .... =359.42 h. in. 8. Santiago tid. lime N. F 4 16 14.56 Santiago >id. time 8. F 49131.99 Interval 5 17.43 h. m. " A pat 4 16 0.28 A p at 4 21 0.39 SEPTEMBER 8, 1859). i Chronometer time of transit. Planet— Sur. Thermometer*. - \IP . .A ... . Micr. Bar. I Object. A. B. C. D. E. Ac. A* Air. Wet. a. 8. 1. a. li. m. a. Rev. m. a. Rev. li> !:. .. . . X I Boa* ... 973 60.0 9.0 14.5 . 3 43 9.17 + «•"! 47.0 43.9 Tom . . . 8.F. . . 7.3 90.0 31.5 . . 3 43 19.60 —10.41 +1 17.43 -17.18J Ther. att. 3 Bowl . . . 873 t 58.S 10.5 , t . . 3 46 10.53 + 6.74 54VO 4 Venu> . . . N.F. 16.0 98.5 40.5 3 47 98.33 —19.34 1 17.80 19.08 r>. n i..i !••:<•' r. n n Bwael . . . 973 59.0 4.3 16.5 . . . 3 50 16.50 + 7.04 t Venui . . . 8.F. • • 99.5 34.6 46.3 69.0 3 51 34.48 —10.30 1 17.98 17.34 7 Bcsad ... 973 9.5 93.0 34.3 t 364 34.17 + 7.97 Ven.. . . . N.F. • • 40.9 69.5 6.0 17.5 35669.85 —11.79 1 18.68 18.99 t BcMel ... 973 3.0 15.0 37.5 . . , 36897.40 + 7.63 U Vena. . . . 8.F. 91 .5 34.0 46.5 59.0 11. -J 369 46.44 — 9.81 1 19.04 17.34 II B-~rl ... 973 . t 44.0 57.0 t t f t 4 1 ».S3 + 7.68 1* \Vnu. . . . N.F. • • 4.5 16.7 89.0 41.5 4 3 16.80 -11.31 i | B 18.99 u Bonl ... 973 41.6 64.0 6.3 . 4 7 6.17 +11.05, 14 Vrnai . . . 8.F. 14.6 96.5 38.8 U.1 4 896.65 - 6.30 +1 90.48 -17.36, AT SANTIAGO DE CHILE. 305 SEPTEMBER 8, 1853— Continued. S Chronometer time of transit. Planet— Star. Thermometers. e Mean of wirps Micr. Bar. a Object.. A. B. C. D. E.. A a. A<5. Air. Wet. .0 s. e. a. s. e. h. m. s. Rev. m. s. Rev. Inches. 0 e K 15 Bessel . . . 273 22.7 35.3 47.6 t t 4 11 47.44 +11.46 28.000 47.5 43.6 16 Venus . . . N.F. 44.0 56.5 8.5 20.5 33.0 4 13 8.50 — 7.53 +1 21.06 —18.99 Ther. an. 17 Bessel . . . 273 17.5 30.3 42.3 4 15 42.27 +11.62 54°. 0 18 Venus . . . S F. 39.5 52.0 4.3 16.5 38.8 4 17 4.23 — 5.59 1 21.93 17.21 Bar. red. to 32° F. 27.935 19 Bessel ... 273 28.0 40.5 52.5 4 30 52.57 +12.31} 20 Venus . . . N.F. • • 2.5 15.0 36.5 39.5 4 32 14.75 — 6.86 1 22.18 19.07} 21 Bessel . . . 273 21.5 34.3 46.4 . . 4 34 46.31 +12.60 23 Venus . . . S.F. 44.0 56.5 9.0 20.6 33.5 4 26 8.73 — 4.69 1 22.41 17.29 23 Bessel ... 273 13.5 25.8 38.0 g t f t 4 28 38.01 +12.86 24 Venus . . . N.F. 36.5 49.0 1.2 13.3 25.5 4 30 1.08 — 6.09} 1 23.07 18.95} 25 Bessel ... 273 19.5 32.5 44.6 , . . 4 32 44.44 +13.24 26 Venus . . . S.F. 43.0 56.0 8.0 30.3 32.6 4 34 7.98 — 3.92 1 23.54 17.16 27 Bessel ... 273 59.5 12.5 i 24.6 . . . . fa 24.44 +13.65} 28 Venus . . . N.F. 24.3 36.5 48.5 1.5 13.5 4 38 48.86 — 5.36} 1 24.43 19.03 29 a Bessel ... 273 38.0 51.0 4 42 2.97 +14.01 30 Venus . . . S.F. 3.3 15.5 38.0 40.3 53.5 4 43 27.93 — 3.09 1 24.95 17.10 31 Bessel.. . . 273 16.8 29.5 41.5 . . 4 45 41.51 +14.30 33 Venus . . . N.F. 42.3 55.5 7.5 19.5 32.0 4 47 7.36 — 4.53} 1 25.85 18.83} 33 Bessel ... 273 39.6 53.1 4.4 . . . . 4 49 4.37 +14.61 34 Venus . . . S.F. 5.5 17.5 30.3 42.2 54.7 4 50 30.04 — 2.60 1 25.77 17.21 35 Bessel ... 273 18.5 31.0 43.4 , . . 4 5243.21 +14.92} X Venus . . . N.F. 45.0 57.3 9.5 91.5 34.3 4 54 9.53 — 3.92 1 26.31 18.84} 37 Bessel ... 273 57.5 10.0 23.0 . . . . 4 57 22.41 +15.23} 38 Venus . . . S.F. 24 7 37.0 49.3 1.5 14.0 4 58 49.30 - 1.91 1 26.89 17.14} 39 Bessel . . . 273 22.0 33.5 , . . , 45933.86 +15.43 40 Venus . . . N.F. 35.5 48.0 0.5 12.7 35.3 5 1 0.40 — 3.32 +1 36.54 —18.75 Remarks. Sharp images after the second measure, though wavy in motion throughout, a Daylight. Results. h. m. s. m. s. Rev. i it Mean S. F. . . . Ten transits . . . 4 21 19.53 + 1 22.04 .... —17.233 . . . . =535.87 Mean N. F. . . . Ten transits . . . 4 25 24.84 + 1 32.62 .... — 18.953 . . . . =6 9.39 h. m. m. s. h. m. s. Correction for chronometer at 4 21 . . . +2 23.75 Santiago sid. time S. F . . 4 23 43.28 Correction for chronometer at 4 25 . . . +2 23.75 . . 4 27 48.59 . . 4 5 31 0 h. m. A N S limbs i iiifr in rev 1 720 — 33 52 A f at 4 23 • . , .... 0 60 4- 0 50 . . . 0 63 Corr. for diam. of micr. wires . . . . -f- W../V — 2.20 Observed N. S . diameter .... 31.82 39 MAES AND VENUS, 1850-52. OBSERVATIONS WITH THE MERIDIAN CIRCLE, AT THE OBSERVATORY, SANTIAGO DE CHILE, BY THE U. 8. NAVAL ASTRONOMICAL EXPEDITION. OPPOSITION OF MARS, 1851-52. MERIDIAN CIRCLE OBSERVATIONS. No. for reference. Date. Object. Observed transit n-iliicnlto mcau of wires. Corrections for Apparent A.R. observed. Circle reading, mean of four microscopes. Refrac- tion. / Nadir. Corr'n for semid. Observed apparent declination. Observer. lust. Clock. 1 la 3 41 5 « 7« S 9d 10 d lie Kf 13 14 U 1«* 17 18 19 30 31 33 23 A 34 35 36 37i 38 39 30 31* 1851. Dec. 19 21 22 34 35 36 27 28 30 31 1852. Jan. 1 h. ni. s. 9 6 55.42 9 8 39.18 9 8 4.46 9 9 48.11 9 19 46.10 9 7 41.87 9 9 46.20 9 19 44.37 9 646.88 9 6 14.18 9 5 37.71 9 7 0.07 9 12 30.28 9 19 37.14 9 559.50 9 8 0.02 9 13 30.28 9 20 36.73 9 5 17.11 9 13 28.83 9 20 35.61 9 342.98 9 7 54.21 9 13 26.51 920 33.50 9 2 50 96 9 3 33.90 9 13 25.80 9 20 32.56 9 1 55.20 9 330.94 s. +1.388 1.389 1.393 1.429 .535 1.393 1.390 m 1.543 1.403 1.565 +1.604 -2.309 + .567 1.476 + 1.513 —2.628 + .435 +2.041 —1.553 .' 1.798 +1.793 —1.689 + .691 1.767 + 1.807 —1.833 + .851 1.888 +1.927 s. +28.61 28.61 32.06 32.06 32.07 33.75 33.75 33.76 37.00 39.36 41.12 41.12 41.13 +41.14 —18.23 18.23 18.23 18.23 17.78 17.78 17.77 15.47 15.47 15.46 15.45 14.44 14.44 14.43 14.42 13.16 —13.16 h. m. s. 9 725.42 9 9 9.18 9 8 37.91 9 10 31.60 9 20 18.71 9 8 17.01 9 10 31.40 9 20 18.67 9 7 25.62 9 6 54.84 9 6 20.40 9 7 43.79 9 13 9.09 9 20 18.85 9 5 43.75 9 7 43.30 9 13 9.42 9 20 18.94 9 5 1.37 9 13 9.50 9 20 18.84 9 3 29.31 9 7 40.53 9 13 9.35 9 20 18.94 9 3 38.29 9 3 20.27 9 13 9.51 9 20 18.99 9 1 43.93 9 3 19.71 0 / // 306 4326.18 306 40 40.08 3063234.92 306 32 11.72 334 34 52.43 306 2824.27 306 32 16.93 334 34 58.20 306 19 18.15 306 14 27.10 306 9 20.68 306 6 55.48 25 12 7.50 334 34 56.10 306 4 5.00 308 7 1.50 25 12 6.20 334 34 58.00 305 58 43.92 35 12 15.48 334 35 7.98 305 46 57.63 305 53 33.75 25 12 7.42 334 34 58.38 305 40 52.18 305 3721.05 25 12 9.38 334 35 0.78 305 34 17.00 305 32 55.70 / // — 1 12.71 1 12.83 1 13.57 1 13.58 25.96 1 12.24 1 12.07 25.43 1 13.34 1 12.93 1 12.66 — 1 12.77 + 25.05 — 25.28 1 13.60 — 1 13.47 + 25.28 — 25.53 -1 14.29 + 25.54 — 25.68 1 14.55 — 1 14.25 + 25.35 — 25.59 1 14.18 — 1 14.35 + 25.13 — 25.37 1 14.42 — 1 14.49 n — 7.8 +14.3 10.9 10.6 12.2 10.1 8.7 0.4 8.7 9.1 +10.4 // -5.7 5.8 5.8 5.9 6.0 6.0 6.1 6.1 6.2 — 6.3 +6.3 « / // +19 51 28.44 19 54 20.36 20 2 4.26 +20 221.67 — 8 1 6.66 +20 6 16.98 +20 2 18.38 — 8 1 9.56 +20 15 24.60 20 20 13.74 20 25 21.99 +20 27 41.30 —58 39 8.54 — 81 6.81 +20 30 40.11 +20 27 37.38 —58 39 6.07 — 81 7.06 +20 36 10.18 —58 39 7.21 — 8 1 8.56 +20 47 48.51 +20 41 5.91 —58 39 7.36 — 81 7.38 +20 53 53.31 +20 57 18.28 —58 39 9.50 — 81 10.40 +21 0 14.83 +21 1 42.50 G. G. G. G. G. G. G. G. G. G. G. Mara .... S.F. Mars .... 8.P. Bessel ... 275 a Hydra; Mara .... S.F. Bcsscl ... 375 Man .... S.F. Mars .... S.F. Mara .... S.F. Eumker . . . 3800 Mare .... S.F. Bumker . . . 2800 Man .... S.F. Man .... S.F. Bumker . . . 2799 a Hydre Man .... S.F. Bessel ... 277 Mars .... N.F. Bessel ... 277 a Mara north of star, 5.95 rev. = 2' 46". 10. t Rcwcl 275, north of Mare, 0.83 rev. = 33". 20. c Observed with micr. Bessel 275. 8.33 rev. south = 3' 59". 66. d d Comparing star would not bear sufficient illuini?iiuion to render the wires visible. e After this day's observations shortened the pendulum two divs. and advanced the clock one minute. / Observed with micr. Rumker 2800, 5.20 rev. north = 2' 25". 20. g Rumker 2800, south of Mars, 6.33 rev. =2' 56".50. So dim that it is mere guess work. h Rumker, 3d wire south, 5.10 rev. = 6' 36" . 10. i Bessel 277, north of Mars, 7.56 rev. =3- 31". 13. Recorded wmth of Mars. * Bessel 277, north of Mars S. F., 2 91 rev. = 1' 21". 30. 310 MERIDIAN CIRCLE OBSERVATIONS, 1851-52. Daw. Object. ••Ml* JO ll.uii.ll l-JUMqo Correction* (or Appan A.R. observed. microscope.. Reftac- Nadir. Corr-n for Mmld. Obarrrrd apparent declination. | Inn. Clock. i 1 3 4« 5 • 1 10 11 13 e 14 15 16 174 U< 19 99 91 ••-• 93/ 94 95 96 97» -J 30* 31 39 33 Mi 35 36 37* 381 Mm 40 41 49* 43 44 • Jan. 1 9 4 5 • 8 9 10 11 19 h. m. >. 9 1394.86 990 31.94 I 9 0 55.70 9 13 23.34 9 90 30.91 8584943 9 4 35.30 9 1321.18 99098.34 8 45 34.63 8 57 41.54 859 34.83 9 13 20.43 -. 17.43 8 5359.43 8 56 30.40 8 59 20.24 9 13 20.77 8 50 33.91 8 55 19.10 - ' B.1 . 9 13 19.47 8 50 33.87 854 4.18 9 20 37.84 8 49 3.58 8 62 48.13 9 13 20.34 990 38.53 8 51 96.77 8 5999.69 9 1321.06 99098.94 8 47 49.77 850 5.04 85494.30 9 13 21.34 , - . :.i.:-, 848 38.95 9 1399.10 99030.10 a. -..-.- + .894 !. -- . +1.847 -1.648 + .990 1.735 +1.733 -1.416 + .898 1.707 1.73S 44.774 -1.416 + .994 3.090 3.089 +3.093 -3.041 .954 .951 + .988 -1.410 + .339 .949 .940 .365 .697 + .697 —1.020 + .956 .938 + .938 —1.160 + .366 +0.745 .745 + .744 —1.136 + .954 K —1.233 + .907 a. -13.15 13.15 19.19 12.11 19.10 10.23 10.23 10.22 10.39 9.30 9.29 9.39 9.28 9.97 8.07 8.07 8.06 8.05 8.05 8.41 8.49 8.43 8.49 8.49 9.07 9.07 9.08 9.67 9.67 9.68 9.68 10.19 10.19 10.13 10.13 10.49 10.49 10.49 10.43 10.43 11.01 11.03 —11.04 h. m. a. 9 13 9.43 . I • 1B.M 8 58 16.3d 9 045.43 9 13 9.581 9 90 19.10 8 5840.94 9 4 16.80 9 13 9.54 8 45 27.04 8 57 33.99 8 59 37.31 9 13 9.73 9 20 19.08 8 53 47.45 8 56 35.42 8 59 15.97 9 13 9.6H 9 20 19.15 8 50 25.75 855 11.63 8 59 15.53 9 13 9.64 -.1 n 10.10 8 50 95.74 8 53 56.05 9 20 19.13 8 48 54.61 8 5339.16 9 13 9.64 920 19.11 D 13 U.77 | ! ,.i 8 47 33.10 84955.37 8 54 14.63 9 13 9.77 ., .,., ].v. , 8 48 98.55 9 13 9.84 ;. H MJH • f n 95 19 1.18 334 35 0.45 : . -.- B M 30598 4.95 ' 9.78 334 35 3.10 305 14 53.88 305 17 55.48 25 13 8.55 334 35 0.89 306 3 90.10 305 8 14.93 305 598.87 25 12 11.58 334 35 3.98 305 0 36.70 304 1 28.10 304 58 37.70 25 12 10.88 334 35 1.78 304 50 31.10 304 54 36.25 304 58 39.55 95 19 5.89 334 34 57.48 304 50 26.58 304 47 4.83 334 3456.28 304 39 43.58 304 40 13.33 95 12 4.65 334 34 57.35 304 39 46.75 304 39 10.15 95 19 5.90 334 3458.40 3049556.40 , i . a.M 3049829.16 ' 95 19 6.58 334 34 5845 304 18 50.80 95 19 19.00 334 35 8.03 1 + 95.11 — 95.35 1 14.87 -1 14.88 + 25.17 — 25.40 1 16.28 -1 16.14 + 25.43 — 25.67 1 13.48 1 16.00 -1 16.13 + 25.23 — 95.47 1 15.14 1 15.10 — 1 15.90 + 24.83 — 25.07 1 16.94 1 16.75 —1 16.51 + 95.97 — 95.51 1 17.39 1 17.55 25.66 1 17.56 -1 17.54 + 25.30 — 25 54 1 17.32 -1 17.35 + 95.19 - 95.36 1 18.49 1 18.51 —1 18.98 + 95.39 — 9S.63 -1 18.68 + 95.33 - 95.57 M +10.4 6.9 5.4 5.5 5.9 12.4 14.8 12.9 14.9 +13.5 - 0.5 it (.1 +6.4 -6.5 +6.5 —6.5 +6.6 +8.6 - .-,.(1 -5839 7.58 -81 11.39 +91 6 18.43 +21 6 30.84 -5839 7.74 — 8 1 10.49 +21 19 44.71 +21 16 49.37 —58 311 — 81 6.44 +20 31 91.99 91 96 23.29 +21 99 15.87 -58 39 8.90 — 81 9.90 +91 34 6.65 91 3321.71 +21 36 .',.71 —58 39 7.50 - 8 1 8.50 +21 44 7.55 21 40 18.71 +21 36 5.67 —5839 9.38 - 8 1 10.26 +21 44 10.12 +21 47 25.53 - 8 1 11.31 +21 54 55.19 +91 54 31.93 -58 39 8.74 — 8 1 10.60 +99 1 43.88 +99 997.11 -58 39 10.41 — 8 1 13.13 +99 8 49.70 99 858.79 +99 6 9.71 —58 39 11.36 — 8 1 12.91 +99 16 9.09 -5839 9.79 — 8 1 7.87 G. G. G. G. G. G. G. G. 0. G. G. BCM) ... 975 Man .... N.P. Mara .... N.P. . . . 181321 B. A. C. . . . 3017 Man .... N.P. BeMl ... .278 a Hvdrj- .... n<-»-ri . . Man . . . . 8.F. Greenwich . . 489 • 11) dr* BeMl ... 978 Man .... S.P. li . . 489 a Hydne BeMl ... 278 Man .... N.I'. a Hydra .... Be»el ... 978 Man .... B.F. Man .... N.P. BeMl ... 278 a Hydra- BeMl ... .978 Man .... vi II. f. . . . l>!- a Hydrc Man .... S.P. c Man N. P 1 tl. C. 1813 in ,r 32 Cancri .... Man .... N.P. H. C 17513 a Hydra 32 Cancri .... Mara .... S.F. 32 Cancri .... W. U Mara .... N.P. a Hydra .... A Cancri . . . Mara .... N.P. A Canfri «' Cancri .... Man .... N.P. a Hydra «' Cancri .... Mars . . . . 8 F. »• Cancri .... a Mara N. P. north of Basel 278, 1.941 rev. = 54" .35. » Man 8. F. south of Hesscl 278, 7.41 rev. = 3' 27".00. There was, probably, an error of 1 rev. in reading the micrometer, and it should have been 6.41 rev. = 2' 59".01. The declination then becomes +32° 31 e Measure* made with magnifying power 144, and the aperture di- minished to two inches. Ail the observations were in the highest possible degree satisfactory. d H. C. 17528 north of Mars 8. F., 3.51 rev. = 1' 38".00. r 11. 0. 17513 south of Mare N. P., 1.45 rev. = 40".50. / 32 Cancri was accidentally observed on the micrometer wire, and, therefore, its declination is not given. K Believed to have been north following. 312 MERIDIAN CIRCLE OBSERVATIONS, 1851-52. DUC. & Object. Obaermd tramtt of win*. Corrcciioni for Apparent • Circle reading, mean imcroKOpe*. Refrac- tion. Nadir. I Obeemd tSSESm j Inn. Clock. \ * 3d 4 Bl 6 ~t 8 94 : • .. 19 : : 14 IS* 18 17 18 19 •- SI/ as S3 94 «5< 96 97 98 • 30* 31 31 33 341 35 36 37 38 m 40k 41 431 43 44 - Jan. 93 94 M S7 •a . 30 31 Feb. 1 •-• '• 41 Mare .... VI'. b. m. a. 8 31 10.63 8 18 6.01 - B 29 31.17 8 11 59.14 8 18 6 58 8 27 49.64 - •.- ••• ,.: 9 13 96.80 • • : \.Tt 7 58 6.C1 8 12 0.38 8 24 30.60 8 37 48.24 7 58 7.31 x H 1.10 * it; M.ni 7 58 7.81 (• -Jl 13.6;) 9 13 30.16 7 59 8.17 8 19 37.30 8 39 15.01 9 13 30.74 758 8.68 8 13 2.61 8 18 0.41 7 58 9.00 8 13 3.83 8 16 36.97 8 16 37.71 9 1331.03 9 30 38.81 7 58 9.17 8 14 53.18 8 16 27.89 8 19 3.59 8 1331.47 8 90 9.58 8 11 50.71 >. +0.700 .738 .748 .665 .660 .670 .648 + .587 —1.384 + .122 .640 .631 .633 .739 .710 .764 .933 —1.679 +1.009 1.053 1.045 + .610 —1.815 + .739 .774 .716 .711 .748 .746 + .747 — l.Mg + .096 .706 .743 .686 .687 .933 .1 I + .774 a. —14.43 n.:- 14.79 14.79 14.79 15.49 15.43 15.43 15.44 15.44 16.68 16.69 16.70 16.70 17.49 17.50 17.50 17.51 18.46 18.47 18 49 18.81 18.81 18.83 18.83 19.26 19.36 19.37 19.33 19.33 19.33 19.33 19.35 19.35 19.90 19.90 19.90 30.05 90.05 20.05 -30.35 b. m. i. 83056.90 » 11 44 43 8 38 15.34 839 17.10 8 11 44.38 8 17 51 .83 8 38 15.10 9 13 9.98 9 20 19.44 7 57 50.49 * 11 44. X) 8 24 14. M 8 27 32.17 7 57 50.46 8 11 44.37 8 16 36.37 S 22 36.05 7 57 50.87 89056.05 9 13 9.99 7 57 50.37 8 11 44.38 8 19 19.54 8 3856.80 9 13 10.09 7 :,- 50.10 i> 11 44.12 8 17 41.86 7 57 50.38 8 11 44.35 8 1C 7.69 8 16 9.13 9 13 lO.o;, 9 30 19.56 7 57 49.98 8 11 44.00 8 14 33.97 8 16 8.68 8 11 44.40 8 13 3.41 8 19 50.53 8 11 31.13 • i 303 3 13.03 303 5 57.10 301 34 0.68 302 49 19.65 302 56 13.09 303 558.13 301 34 4.63 303 49 56.98 303 49 34.38 35 13 33.33 334 35 10.83 303 42 18.75 302 5 58.05 3023899.83 303 36 49.89 303 43 15.03 303 6 1.32 303 3335.30 303 33 13.45 303 42 19.80 30227 45.58 35 19 96.80 303 42 16.43 303 6 0.45 302 22 54.82 319 36 51.63 25 13 37.30 303 42 17.78 302 6 1.30 303 17 53.55 303 42 18.65 302 5 57.95 303 l.'l 302 !' 25 12 38.75 334 35 14.95 303 42 15.18 302 5 57.65 302 8 56.83 303 953.33 303 556.00 302 5 2.40 301 57 3.99 302 1 5.70 / " -1 99.16 1 35.14 ; - ,| 1 92.84 1 32.48 1 94.53 1 38.44 1 32.59 —1 93.63 + 95.19 — 95.43 1 19.30 1 24.41 1 22.84 1 22.93 1 19.66 1 34.68 1 33.30 1 23.26 1 20.77 — 1 94.59 + 96.07 1 30.11 — 45.67 -f 35.30 19.35 34.33 23.61 18.88 33.85 33.56 — u:i.7.i ;- N.M — 25.18 18.84 33.80 33.56 33.51 34.03 34.07 -1 34.81 n + 1.0 + 9.0 — 0.5 + 0.1 3.5 0.4 + 0.6 - 1.9 -9.5 + 3.3 1.7 + 1.1 +6.7 • • +6.7 -6.7 +0.7 —6.7 +6.6 -8.6 • • -6.6 +0.5 • / » +33 33 36.55 9499 0.15 95 0 58.34 93 45 35.30 S3 38 49.20 9499 1.01 95 056.43 93 44 53.52 +33 45 33.85 —58 39 13.90 — 8 1 10.79 -1-33 S3 34.56 34 39 0.37 3356 27.33 3358 7.11 9959 35.35 9498 56.97 94 1 98.51 34 1 48.13 935934.68 +94 7 6.03 -58 39 19.16 +93 59 37.90 949858.33 94 13 9.64 + 6 57 27.55 —58 39 18.99 +33 53 36.88 94 98 58.33 94 16 58.77 335336.84 94 98 57.51 94 91 31.05 +34 95 3.84 —58 39 17.09 — 8 1 13.16 +33 53 33.47 94 98 57.96 94 95 51.94 9495 1.99 9499 0.44 94 30 0.38 94 37 53.99 +34 33 45.63 M P. B. M, P. M. P. M. O. M. P. M. A Cancri . • • Cancri .... Beaeel ... 344 Man .... B.F. •' Cancri .... Mara .... N.I'. Benel ... 344 a Hydre B. A. C. . . . 2703 A Cancri Mai \.I'. . . ... 9703 A Cancri . . . . . 16464 Man . . . B. A. C. . . . 2703 Man .... X.I'. I Ar-'.i- . . . 2703 A Cancri Mara .... 8.F. < Hydra . . 1 Alum B. A. C. . . . 2703 A Cancri Man .... N.P. B. A. C. . . . S703 A Cancri . . . Mare . . . Bewel ... 344 a Hydra- ... 2703 A Cancri Man .... N.P. Beaael . . .314 Man .... S.F. • • Cancri .... Man .... N.P. • 1 II • I 41 . \ /I (1 - Ian B.F., «\. .',6".50. < S.F., 4th wire, -! ''.60. nadir «l»rrv. nanged from -J- 3 '.5 ; the adopted amount hai been ., .of itandard alara on Uw Mine night. Muietcr of Mar., OM rer. =, 16" .30. Mamcler of Man, 0.:, AT SANTIAGO DE CHILE. 313 No. for reference. Date. Object. Observed transit reduced tn mran of wires. Corrections for Apparent A.R. observed. Circle reading, mean of four microscopes. Refl*c- tion. Nadir. Corr'n for aemid. Observed apparent declination. O Inst. Clock. la 2 3 4 Si 6 7 Sc 9 VSd 11 IS u« 14 «/ 16 17 W* Mi 91 33 23 94 Ml 98 27 M 39 30 31 39 33 34 35* 3S1 37 38 39 40m 41 » 43 43 440 «? 1852. Feb. 4 7 8 g, 10 11 13 14 15 16 X Cancri h. m. B. 8. fl. h. m. s. « / ;/ 302 5 57.63 301 57 9.25 307 53 8.40 301 47 55.53 301 51 12.46 301 57 3.95 301 59 53.55 303 42 17.15 301 48 34.43 301 48 0.43 302 5 57.45 301 57 5.15 303 42 17.13 301 45 33.63 301 47 59.63 302 5 59.88 301 57 4.80 35 13 30.20 303 53 8.00 301 43 16.88 309 5 49.58 35 12 23 28 301 39 42.05 301 42 12.73 301 40 56.32 302 5 51.08 25 12 23.13 334 35 5.08 301 39 41.45 301 37 23.38 302 5 49.13 35 12 93.65 334 3* 6.35 301 34 34.33 301 39 46.86 301 35 59.73 302 5 51.93 35 12 97.00 301 31 40.58 301 39 52.71 301 34 52.18 303 5 54.93 301 34 38.90 301 39 49.03 301 34 2.30 / // — 1 24.58 1 25.26 1 8.42 24.04 23.86 23.55 33.37 18.66 24.57 24.59 23.62 24.10 13.65 24.71 34.57 33.70 — 34.18 + 34.87 — ] 18.38 1 24.95 — 1 23.76 + 34.94 — 1 25.86 1 25.71 1 25.79 — 1 24.45 + 25.09 — 35.33 1 35.59 1 35.65 — 1 34.17 + 34.99 — 23.23 1 96.23 1 25.94 1 36.15 — 1 24.53 + 25.12 — 1 26.33 1 26.04 1 36.32 1 24.61 1 26.07 1 35.79 — 1 96.11 + LI 0.2 1.5 1.2 9.8 7.9 9.6 6.3 4.7 + 4.9 ' ' it —6.5 —6.4 +6.4 — «.3 +6.3 6.3 6.9 +6.9 -6.1 « / // +24 28 59.96 24 37 49.02 1841 33.03 24 47 2.43 24 43 51.81 24 37 53.51 24 35 3.73 22 52 34.12 24 46 39.15 24 48 56.77 24 28 58.78 34 37 51.56 22 52 34.43 34 49 17.59 24 46 57.85 24 28 56.73 +24 37 52.29 -58 31) 23.16 +22 42 34.59 24 51 38.6H +24 28 58.49 —58 39 23.91 +24 55 10.02 24 52 39.20 24 53 49.38 +24 28 59.58 —58 39 22.01 — 81 13.54 +24 55 8.58 34 57 20.58 +24 28 59.55 —58 3924.13 — 8 1 16.61 +25 0 19.81 24 55 6.89 24 58 48.03 +24 39 0.40 —58 39 24.31 +25 0 15.16 24 55 3.74 24 59 57.35 24 28 59.09 35 0 16.38 34 55 5.97 +35 0 59.12 M. P. G. G. M. G. G. M. G. M. •• Cancri .... S 20 9.91 6 36 36.34 8 6 36.85 8 7 34.07 8 20 10.57 8 21 35 46 7 58 10.38 8 6 13 61 +0.775 .635 .721 .721 .773 .772 1.231 1.280 —90.35 20.35 20.97 20.97 2».97 20.97 91.55 21.56 8 19 50.34 8 36 16.63 8 6 16.60 8 7 13 82 8 19 50.37 8 24 15.26 7 57 49.96 8 5 53 33 !!•— ••! ... 341 Man .... S.P. «• Cancri .... 32 Cancri .... B. A.C . . . 2703 Mara .... S.F. Bessel ... 341 8 13 4.31 8 20 10.44 7 58 10.63 8 454.38 8 6 36.5-2 8 12 4.57 8 20 10.70 9 13 33.33 7 44 35.75 8 3 41.11 8 13 6.14 9 13 33.59 7 55 38.47 7 59 47.11 8 937.33 8 13 6.68 9 13 34.37 9 30 42.49 7 55 39.97 8 0 11.26 8 12 8.37 9 13 35.19 9 30 43.81 7 55 28.71 7 55 40.89 7 59 7.73 8 13 9.13 9 13 35.49 7 55 29.08 7 55 41.29 7 58 6.87 8 12 9.38 7 5529.44 7 55 41.57 7 57 19.33 .273 .278 .218 .368 .212 .260 + 1.263 —1.468 + .616 .703 + .697 —1.017 + .723 .778 .778 + .770 —1.217 + .338 .476 .476 + .470 — .817 + .196 .198 .198 .353 + .350 — .456 + .296 JM .389 .377 .350 .350 +0.353 21.56 21.56 22.04 22.04 33 04 22.05 32.05 22.07 22.53 22.53 22.54 39.56 23.06 33.06 23.06 33.07 23.10 23.10 34.39 34.29 24.29 34.32 34.39 25.06 25.06 25.06 25.07 35.09 25.44 35.44 35.44 25.44 35.82 25.83 —25.82 8 11 44 02 8 19 50.16 7 57 49.81 8 4 33.51 8 6 15.69 8 11 43.78 S 19 49.91 9 13 9.79 7 44 13.84 8 3 19.38 8 11 44.30 9 13 10.01 7 55 16.13 7 59 24.83 8 2 5.05 8 11 44.38 9 13 10.05 9 20 19.62 7 55 16.16 7 59 47.45 8 11 44.45 9 13 10.05 9 20 19.62 7 55 3.85 7 55 16.03 7 58 42.92 8 11 44.31 9 13 9.94 7 55 3.87 7 55 16.08 7 57 41.71 8 11 44.22 7 55 3.87 7 55 16.00 7 56 44.76 «• Cancri .... B. A. C. . . . 2703 Mara .... N.P. Benel ... 341 • • Cancri .... 84 Geminorun . . . Man .... S.F. H. C. ... 15707 Benel ... 341 Man .... N.P. a Hydra . . . . . H. C 15707 Mm .... N.P. Bessel ... 341 H. C 15707 Man .... N.P. A Cancri BCMCI ... 341 H. C 15707 Man .... N.P. A Cancri Bessel ... 341 H. C 15707 Man .... S.F. a A C»ncri, 5th wire, + 1.35 rev. = V 51''.93. t Mare S. P., 5th wire, — 2.05 rev, = 3' 1«".93. Recorded north limb. There in evidently an error in the R. A. of Bessel 341, not now explicable. c The axis was lowered during the afternoon, leaving the east end high 0.72 div. and image of wire f).0. 1 1 rev. wc>(. d Bessel 341, north of Man S. P., 0.86 rev. = 24". 00. « The pulley being broken, the north roof door could not be opened. ) Beuel 341, south of Mara 8. P., 5.23 rev. = 2' 36" .00. g The azimuth was changed belfore observation!. k Diameter of Mars, 0.50 rev. = 14 '.00. < Mara N. P., north of Besnel 341, 2.73} rev. = 1' 16".45. * H. C. 15707, 5th wire, + 2.09 =-. St 12".63. I Mara N. P., 4th wire + 3.06 rev. = 1' 25".50. m H. C. 15707, 5th wire, + 2.07J rev. = 5' 12".13. n Mara N. P., south of Hessel 341, 0.41 J rev. = 11".65. o H. C. 15707, 5th wire, + 2.00 rev. = 5' 10".13. p Mara S. F., 4th wire, — 1.31 rev. = 36" .60. 40 314 MERIDIAN CIRCLE OBSERVATIONS, 1851-62, i ; D«t«. • Obj.«. I? Correction! for Ainr nil*. I V rij Cirrlr rrarhnr, mean of four Inl.^lii.c.cjK •. Refrac- tion. Nadir. j Obwrred de'c'lmauon. i jli but. Clock. i 9 3 4 S« 6 7 8 » lot 11 19 13 M IS l«c 17 184 It M< 11 «/ • M «f M • 98 •U » 31 at • 34 • 31 37 SB • • 41 • 43 44 • 1 :-.VJ. Feb. 10 17 18 U 90 91 99 93 94 98 98 AC«ncri h. m. >. 8 19 8.91 9 13 38.47 99045.46 7 5599.85 7 56 14.83 8 13 10. 31 9 13 37.39 990 45.83 7 55 94.85 7 55 30.36 S 19 10.76 8 18 18.90 9 13 37.90 9 90 46.49 7 54 36.15 7 55 30.80 8 13 11.11 8 18 18.61 7 5353.59 7 M 31.03 8 13 11.46 8 18 18.86 7 40 10.13 7 53 10.46 7 55 31.15 8 13 11.60 7 40 10.96 7 53 32.47 7 54 42.53 8 13 11.60 7 40 10.74 7 51 58.59 7 55 31.70 8 13 12.14 7 40 11.16 7 51 98.93 B 19 13.64 639 6.93 7 40 11.44 7 47 34.90 7 SO 50.54 7 58 18.87 7 40 11.91 7 47 35.33 7 SO 37.57 •. r".:>v - .580 + .073 .640 .641 + •''•"• - .920 + .953 .551 .551 .597 + .548 — .874 + .903 .959 M .309 .314 .311 .355 .307 .311 .991 .303 .346 .998 .390 .301 .301 .997 jn . .999 .946 .995 .995 .306 .304 .090 .303 .314 .313 .997 .978 .991 +0.390 •. -95.89 95.84 96.40 36.40 96.40 m.a 96.43 37.00 97.00 97.01 97.01 37.09 37. (U 27.11 97.11 97.19 97.19 97.59 37.59 27.60 27.60 97.64 37.64 27.64 27.64 37.93 27.93 37.93 37.94 llti MJi B.IJ 98.33 98.71 28.71 98.79 KJi 99.00 39.00 29.00 99.01 99.40 99.40 —29.40 h. m. a. 8 11 44.39 9 13 10.05 99018.68 7 55 4.00 7 55 49.07 8 11 44.50 9 13 10.04 9 90 19.65 7 54 58.40 7 55 3.91 8 11 44.35 8 1751.74 9 13 10.00 9 90 19.67 753 9.30 7 55 3.95 H 11 44.30 8 17 51.80 7 53 95.31 7 55 3.70 8 11 44.17 8 17 51.57 7 39 42.78 7 59 43 13 7 55 3.76 8 11 44.96 7 ::'.! -!•.'. i;-J 759 4.84 7 54 14.90 8 11 43.96 7 :tl .)•_•.. -1 7 51 30.67 7 55 3.73 8 11 44.91 7 39 42.75 7 51 0.53 8 11 44.29 6 38 37.96 7 :r.i B.M 7 47 6.91 7 SO 21.85 7 57 50.16 7 3942.79 7 47 6.99 7 SO 8.46 • / It 309 554.45 95 19 31.08 334 35 9.93 301 34 35.70 XI 32 59.30 303 5 53.05 95 13 39 33 334 35 10.97 301 32 -11.93 301 34 34.33 309 5 52.77 301 3358.15 95 13 98.70 334 35 11.60 301 32 3.75 301 34 34.08 309 5 55.38 301 33 57.40 301 32 10.33 301 34 38.16 303 554.15 301 34 59.38 303 4 41.69 301 31 54.95 301 34 37.45 309 5 53.45 303 4 44.55 301 33 13.43 301 35 7.49 302 5 55.83 303 4 45.50 301 33 38.19 301 34 38. 68 309 5 55.59 303 4 43.95 301 33 96.80 303 5 53.65 343 4 58.50 303 4 43.85 301 31 54.00 301 33 57.43 303 43 19.79 303 4 43.49 .101 31 59.90 301 35 5.93 / // — 1 94.36 •f 95.10 — 95.37 1 ;V,.V, 1 96.55 — 1 94.74 + 95.11 - 95.37 1 97.67 1 97.56 1 95.92 — i 97.71 + 95.56 - 95.79 1 96.45 1 96.31 1 94.58 1 96.34 1 96.91 1 36.07 1 34.35 1 96.05 1 90.91 1 95.35 1 95.10 1 93.51 1 90.97 1 95.91 1 •-•.'..71 1 34.06 1 31.55 1 98.57 ' 1 96.45 1 94.86 1 20.80 1 95.65 1 93.88 16.08 31.08 IMN •J/..:M 19.93 90.17 95.07 -1 94.90 H +4.9 • • 6.9 6.0 3.5 9.9 6.4 9.7 4.6 * • 4.7 4.5 +5.1 II • • +6.1 -8.0 +6.0 —5.9 +5.9 5.8 +5.8 • . -5.7 +5.7 -5.6 • » // +24 9859.12 -583996.97 - 8 1 15.35 +35 0 17.97 95 1 48.36 +94 98 56.90 - H a1.' -'7.-':i - 8 1 18.39 +95 9 90.55 95 091.34 94 99 1.96 +95 0 57.67 -583996.15 — 8 1 17.70 +95 9 47.31 35 0 99.84 94 98 59.81 95 0 59.55 95 9 53.99 95 0 19.12 94 99 1.41 94 59 57.98 9330 6.30 95 9 59.11 95 0 15.36 94 98 57.77 9330 7.83 95 9 38.10 945949.73 94 98 59.64 93 30 5.56' 95 9 12.16 95 0 17.98 949858.85 9330 6.96 95 1 33.96 +94 98 59.64 -16 31 19.81 +93 30 6.84 95 3 1.65 95 0 59.39 93 S3 36.11 93 30 5.76 95 3 1.88 +34 59 54.98 M. r. M. p. M. P. G. P. M. P. M. a Hydra Bewel ... 341 Mara .... N.P. A Cancri Mara .... 8.F. Bend ... 341 A Cancri . . . *' C«ncri .... a Hvdras M«n .... N.P. BetMl ... 341 A Canon • ' Cancti .... Mara .... S.F. B«M| ... 341 \ Caix-ri »' Cancri .... 83 Gcminorum . . . Mare .... N.P. BoMl ... 341 A Cancri aaCeminorum . . . Man .... N.P. BCMCI ... 341 A Cancri 88 Geminonun . . . Man .... N.P. Be«Kl ... 341 ACutcri . . . 89 Gemlnorum . . . Man .... S.F. A Cancri • CanijMaJ. . . . 89 G«minonun . . . BcMcl ... 341 Man .... N.P. B. A. C. . . . 9703 KlGomijioram . . . BeaMl ... 341 Man .... S.F. • Man N. P., 4lh win, + 3.45 rev. = 1' 36".40. t Bwttl 341, 4th win, + 4. OS rev. — 1' S.TMO. t trmrl 341, Sdi wire, — 3.79 rev. = a 30" .33. t •< Cmacri. Doable ; obtenred xnith, preceding itar. • Bend 341, 5Ui win, — 3.81 rer. = * 87 .63. / Bewl 341, aottth of Man 5.83 rev. = * 43 '.50. t »' Cancri. Observed south, preceding Mar. A Thlt wai miiukrn for Buiael 341, aoutb of Man N. P., 6.93 rev. = * 54".00. i Man 8. F.,5th wire, — 9.19 rev. = » 13 '.03. AT SANTIAGO DE CHILE. 315 g •^ 5 •3 C a Corrections for S "0 Apparent Circle reading Refrac- Nadir. S Observed £ Date. Object. 173 ~& S A. R. mean of four tion. a apparent fe 1 111 Inst. Clock. observed. microscopes 1j declination. e £ £% s 1 I o *• ° 0 0 1853. li.in. 8. 8. B. h. m. s. . ; // / it „ n » t n j Feb. 36 9 13 39.94 —0.633 —29.42 9 13 9.89 25 12 33.88 4- 34 65 +5.1 — 58 39 29.53 M. 2 9 90 48.97 + .047 29.42 9 20 19.60 334 35 12.05 -y- OT.IM* — 24.88 — 81 18.16 3 27 83 Geminorum . . . 7 40 11.90 .261 29.45 7 39 42.71 303 4 42.62 1 30.40 5.1 +23 X 6.79 P. 4 Bessel ... 341 7 47 35.34 .274 29.45 7 47 6.16 301 31 53.88 1 25.37 . . . , 25 3 0.50 So Man .... N.P. 7 50 15.84 .272 29.45 7 49 46.66 301 35 59.71 1 25.15 . . +5.6 24 58 48.85 « B. A. C. . . . 2703 7 58 19.33 .255 29.45 7 57 50.03 303 42 11.75 1 18.60 • • • • 22 52 35.86 7 28 83 Geminorum . . . 7 40 13.39 .330 29.92 7 39 42.80 303 4 45.08 1 21.63 5.2 t m 23 X 5.46 M. 8 Bessel ... 341 7 49 8.31 .388 29.92 7 48 38.68 301 40 46.68 i 26.14 . . 24 54 8.37 9 Man .... S.F. 7 49 59.89 .289 39.93 7 49 30.26 301 37 30.67 1 36.32 —5.5 24 57 X.06 10 B. A. C. . . . 2703 7 58 19.88 + .325 39.93 7 57 50.28 303 43 14.00 — 1 19.69 +22 52 34.60 11 9 13 40.69 — .728 39.94 9 13 10.03 25 12 33.48 + 25.15 —58 39 29.72 19 'a Hydra . . 9 30 49.54 + .059 29.95 9 20 19..65 334 35 13.08 — X25.38 8 1 18.79 13 39 83 Geminorum . . . 7 40 12.76 .112 30.28 7 39 42.59 303 4 47.78 1 32.32 4.3 +33 X 4.35 G. 14 Bessel ... 341 7 49 8.58 .119 30.38 7 48 38.42 301 40 46.43 1 36.88 . . . 94 54 10.36 III Man .... N.P. 7 49 45.03 .064 30.38 7 49 14.81 XI 38 34.90 1 27.00 • • +5.5 34 56 16.41 H Mar. 1 Bessel ... 341 7.49 8.90 .006 M.33 7 48 38.58 301 40 42.78 1 25.19 3.8 24 54 13.73 G. 17 c Man .... S.F. 7 49 35.31 .006 X.33 7 49 4.99 301 40 28.58 1 25.20 . . —5.4 24 54 33.33 18 Besscl ... 341 7 55 33.64 .061 X.34 7 55 3.36 XI 34 35.58 1 25.64 • • • • 25 0 20.37 19 2 Bessel ... 341 7 49 9.58 .166 30.83 7 4838.92 XI 40 43.70 1 24.17 5.2 24 54 9.38 P. •4 Man .... N.P. 7 49 97.46 .921 30.83 74856.85 301 41 51.56 1 24.28 . . +5.4 24 53 56.33 91 Bessel ... 341 7 55 34.44 + .223 30.83 7 55 3.83 301 34 33.62 -1 24.68 . . . . +25 0 19.97 93 t Anrus 9 13 41.33 — .619 30.86 9 13 9.85 25 13 37.60 + 94.73 —58 39 32.92 93 9 30 50.49 + .002 30.86 9 20 19.63 334 35 13.43 — 24.98 —81 19.56 94 3 Bessel ... 341 7 49 10.09 .934 31.17 7 48 39.15 XI 40 45.05 1 25.95 4.8 +24 r,4 9.51 G. 95e Man .... N.P. 7 49 23.31 .979 31.17 7 48 52.42 XI 43 48.85 1 25.08 . . 5.3 24 51 0.34 96* Bessel ... 341 7 54 46.11 .935 31.17 7 54 15.17 XI 35 1.38 1 35.68 • • • • 24 59 53.61 97 4 Man .... N.P. 7 49 22.40 .335 31.51 7 48 51.93 XI 45 49.02 1 24.72 5.3 5.3 24 48 59.31 P. 98 Bessel ... 341 7 55 35.14 + .381 31.51 7 55 3.91 XI 34 34.83 — 1 25.34 . . . . +25 0 19.33 39 9 13 42.23 — .808 31.53 9 13 9.89 25 12 36.12 + 24.81 —58 39 32.13 3* a Hydra 9 90 51.30 + .029 31.53 9 30 19.70 334 35 12.48 — 25.03 — 81 18.64 31 6 H. C 15401 7 47 8.94 .184 39.32 7 46 36.90 XI 50 4.42 1 24.35 5.0 +34 44 49.04 P. 3S/ Man .... N.P. 7 49 29.97 .184 33.22 7 48 57.93 XI 50 12.33 1 34.34 . . +5.9 24 44 36.03 33 Bessel ... 341 7 5535.53 .IX 32.23 7 55 3.43 XI 34 36.40 1 25.90 • • • • 95 0 17.91 34 7 Man .... S.F. 7 49 38.91 .479 '33.36 7 49 7.03 XI 52 52.X 1 25.06 5.5 —5.2 24 42 6.57 O. 35 Bessel ... 341 7 55 35.53 + .497 32.36 7 55 3.60 XI 34 34.95 -1 96.07 . . . . +25 9 19.73 30 9 13 43.24 —1.160 32.37 9 13 9.71 25 12 34.33 + 25.14 —58 39 X.86 37 a Hydra 9 30 51.87 + .033 32.37 9 90 19.53 334 35 13.20 — 25.35 — 81 19.24 38 1 H. C 15419 7 47 39.71 ™ .WMJ .364 32.50 7 46 57.57 XI 58 5.68 1 25.51 5.3 +24 36 48.64 P. 3} I Man .... N.P. 7 49 49.61 .364 32.50 7 49 17.47 XI 55 7.18 1 25.67 . . +5.1 24 39 42.20 40 Bessel ... 341 7 55 36.00 + .369 32.50 7 55 3.87 XI 34 37.10 — 1 26.81 . . . . +35 0 18.53 41 9 13 43.37 —1.016 32.50 9 13 9.S5 25 12 35.55 + 25.33 . . —58 39 32.07 49 a Hydra . . . 9 20 53.33 — .007 32.50 9 30 19.73 334 35 12.30 — 25.58 . . — 81 17.83 43 B H. C 1S419 7 47 39.74 + .370 32.50 7 46 57.51 XI 58 6.75 1 23.57 +4.1 +24 36 46.83 G. 44* Man .... S.F. 7 50 4.41 +0.270 —32.50 7 49 32.18 XI 57 59.75 — 1 23.57 -5.1 +24 36 58.93 a Man N. P., 5th wire, — 0.30 rev. = 4' 5".83. / Man N. P., south of H. C. 15401 , 0.38 rev. = 7".80. t Man N. P., north of Bessel 341, 4.71 rev. = 3' 11".50. g Man N. P., 4th wire, —6.39 rev. =2' 58".50. e Man 8. F., north of Bessel 341, 0.51 rev. = 14" .30. A Mars S. F., north of H. C. 15412, 0.35 rev. = 7".00. d Man N. P., south of Bessel 341, 3.43 rev. =1' 7".86. • This confirms the third observation of February 22, and the i Man N. P., south of Bessel 341, 6.58 rev. = 3' 3" .80. Ephemeris is presumed to be in error — 35". 316 MERIDIAN CIRCLE OBSERVATIONS, 1 851 52. j U Correction! lor 1 -a Circle reading, Rcfrac- Nadir. I ObMrved I Dm Object. Hi hut. Clock. ..,..,:,'.,', mean of lour mi. j.i.i ..(.. a, IM'll. •1 derluuuon. i * <§ i-.--j h. m. a. ,. a. h. m. i. • r « / " » It • / u 1. M.v, h :; Greenwich . . 486 V SO 68.47 +0.341 —33.50 85096.31 304 SO 34.68 — 1 15.96 + 4.1 . . +91 44 10.59 6. u BeaMl ... 975 8 58 49.94 .934 32.50 85816.97 3059833.83 1 13.53 . . . . 91 6 19.71 3c BeaMl ... 975 9 S 0.69 + .939 t 33.50 9 4 98.43 305 55 36.65 —1 13.32 . . . - +90 39 5.68 4. 9 13 43.16 — .911 33 50 9 13 9.75 35 12 38.38 + 34.73 —58 39 33.10 5 • Hydra .... y -ji> .vj.i- + .045 33.50 9 20 19.73 334 35 15.63 — 94.99 • • ' ' — 8 1 90.69 6 10 II. C 15419 7 47 99.81 .545 32 73 7 46 57.63 301 58 5 83 24.70 5.2 . +24 36 47.79 P. -t Mara .... N.P. 7 SO 30.56 .543 3-2.73 7 49 48.37 302 0 33.72 34.56 . . +5.0 94 34 15. T:. 8 Greenwich . . 485 8 50 58.47 .:M 32.74 8 50 26.23 3045035.12 16.13 . . . . 91 44 9.99 9 Benel . . . .275 8 58 49.39 .l'.h> 32.74 8 58 17.14 3053833.98 14.37 . . , . 91 6 19.30 10 Becael . . .275 9 4 59.77 .431 32.74 9 4 97.46 305 57 8.93 13.14 . . . . 903733.89 11* BeaMl . . 9 5 0.61 + .431 32.74 9 4 28.50 -.02 — 13.15 . . . . +30 39 4.04 19 9 13 43.66 —1.199 32.74 9 13 9.79 25 12 37.58 + 95.03 —58 39 33.70 13 a Hydra . . . . 9 20 52.30 + .090 32.74 9 20 19.65 334 35 14.50 — 95.96 — 81 20.33 14 11 Man .... S.F. 7 SO 41.39 |- .' .077 33.89 750 8.58 302 3 39.88 1 94.63 4.5 -5.0 +34 34 19.36 M. 15 19 Man .... N.P. 7 51 3.16 .403 33.97 7 50 30.59 302 6 25.75 23.84 4.4 +4.9 94 98 29.90 P. 16/ B«aMl ... 339 7 51 32.52 .348 32.97 7 50 59.90 303 6 27.98 93.84 . . . . 94 98 95.57 17 Greenwich . . 485 8 SO 56.81 .43J 32.97 ; 8 50 26.28 304 60 34.63 15.53 4.5 . , 91 44 10.52 18 BeaMl . . . 975 8 58 49.66 .358 32.97 8 58 17.05 3052821.75 13.79 . . . . 91 621.65 19 Beuel ... 375 9 5 1.13 + .353 33.98 9 4 28.50 305 55 35.08 - 12.58 . . . . +2039 7.11 90 9 13 43.81 —1.051 33.98 9 13 9.79 35 12 36.38 -U 94.81 — 58 39 33.68 91 a Hydra 9 20 52.66 + .011 32.96 9 90 19 69 334 35 13.58 — 95.13 — 81 18.74 99 13 H.C 15401 7 47 9.61 -p •"• • .416 33.19 7 46 37.11 301 50 3.10 1 94.97 4.0 +94 44 51.98 H. 91 Man .... P.F. 7 M 99.45 .413 33.19 7 50 56.74 303 9 44.50 1 23.21 . . -4.9 24 25 13.72 Mj Beuel . . . 339 7 51 32.56 .413 33.12 7 50 59.85 303 6 37.39 1 23.39 . . . 949896.11 95 Beuel ... 341 7 59 57.30 .419 33.12 7 59 34.60 301 42 13.38 94.79 3.9 . . 94 63 41.69 98 t) _ _( ! »J4| 8 « 48.91 .472 33.13 8 6 16.36 301 47 54.78 24.48 . . , 94 46 59.91 f7 \ Cancri 1 8 19 16.74 .468 33.12 8 11 44.09 303 5 50.20 23.55 94 99 3.56 Waihinfton . . . 8 13 42.94 .413 33.13 8 13 10.23 303 538.40 23.58 t t 34 29 25.39 99 Benel ... 344 8 38 47.68 .459 33.13 8 38 15.02 302 49 15.52 31.18 . . . . 93 45 35.87 10 Beiael ... 344 8 35 39.93 .449 33.12 8 35 7.26 303 20 19.52 19.83 . . . , 93 14 30.59 11 Beaael ... 344 8 40 50.89 .388 { 33.13 8 40 18.16 303 50 7.68 18.38 , , . , 33 44 40.91 32 i BeaMl ... 344 8 40 55.41 .387 33.12 8 4022.68 303 53 44.09 18.96 . . , . 92 43 4.38 13 Beaael ... 978 8 49 37.71 .431 33.12 8 48 55.09 304 39 50.90 16.06 . . 31 54 56.07 14 BeaMl . . . 978 9 0 0.81 .425 33.13 859 28.11 305 534.80 14.92 . , . . 31 39 20.25 15 llumkrr . . . 9799 9 8 13.59 .414 33.13 9 7 40.87 305 53 35.50 12.77 t f t r 30 41 7.48 X B. A. C. . . . 3181 9 19 51.97 .348 33.13 9 12 18.49 306 51 53.20 10. as 19 43 47.39 17 M»n . . N.P. 7 51 56.29 .394 33.65 7 51 94.03 302 19 48 13 OJ1.17 3.5 ±4 9 94 23 0.76 O. 38* H.C 15808 7 53 11.06 .393 32.65 7 52 38.80 309 15 55.02 23.00 -|— ».» 94 18 58.59 91 Anon . . . 9 3 53 08 4- 364 32.64 9 330.80 .Tfl.1 37 94 IS — 1.1 Kl +20 57 90.04 40 i Argui .... 9 13 43 59 -J- ,*nr* —1.349 33.64 V 13 9.60 25 12 36.92 + 24.88 —58 39 31.19 41 « Hydra B 90 52.90 + .038 32.64 9 30 19.53 334 35 14.90 — 95.19 — 81 18.47 49 15 H.C 15401 7 47 9.10 • .198 33.79 7 46 36.58 301 50 5.39 1 95 31 + 4.8 +24 44 49.30 M. 43 Man .... S.F. 7 59 97.77 .193 33.79 7 51 55.34 302 16 20.58 { 34.00 , . -4.8 94 18 37.53 441 H.C 15608 7 53 11.04 .139 7 52 38.51 303 15 56.38 24.03 94 18 57.05 45 Be*ael ... 341 7 59 58.75 .145 32.75 7 59 24.18 301 43 13.95 25.94 , , f t 94 53 41.30 jg A Cancri 8 19 16.36 .140 39.79 8 11 43.78 3112 S SO 75 94.59 34 39 3.15 47« Waihinfton . . . 8 13 49.46 .140 33.79 8 13 9.88 309 535.35 9461 '. t 94 99 18.57 49 Waihinfton . . . 898 4.26 +0.190 —33.73 8 97 31.73 302 38 47.38 — 99.97 • • • • +93 58 5.00 « Greenwich 48S, comparing itar, January 8. t BeaMl 339, 3d wire, — 9.10rrr. = 3' 17 .11. t Beaael 975, comparing ilar, January 3. A Washington, 4th wire,— 0.78 rev. —0' 21' .60. < BMM! 975, comparing liar, December 98. ( Deuel 344,3d wire, — 3.58 rev. = * 36 '.41. t Man N. P., north of II. C. 15419, 5.35 rev. = 2' 29".41. It II. C. 15608, MUth of Mare N. P.. 6.69 rev. = 3 6".90. • Btiael 975, Kiinh of preceding Mar, 3.93 rev. — \> 30 '.21. 1 II. C. 15608, north of Man 8. F., + 0.87 rev. — 0< 24 '.30. / Bevel 339, foulta of Man N. L., 0.08 rev. =-. V 2 .23. m Wellington, 4lh wire, — 0.55 rev. — 0' 15 .40. AT SANTIAGO DE CHILE. 317 g 1 -ri e 00 B) I 1 Corrections for i 1 *; Date. Object. "2 . Ill Apparent A. R. observed. Circle reading, mean of four microscopes. Refrac- tion. Nadir. i C Observed apparent declination. 1 £ Inst. Clock. t 03 O o fc 0 " 0 0 1853. h. m. s. 8. s. b. m. s. . / // / ,; n // 0 / ;/ 1 Mar. 15 Beasel ... 344 8 35 39.44 +0.182 —32.72 8 35 6.90 303 20 21.92 —I 30.73 + 4.8 . . +23 14 28.82 M. 9 Bessel ... 344 8 40 50.64 .177 32.73 8 40 18.10 303 50 8.42 1 19.93 . . . . 22 44 40.13 3 Bcssel ... 378 8 47 58.83 .171 32.73 8 47 36.28 304 19 33.50 1 17.83 . . . . 33 15 13.62 4 Bessel ... 378 8 54J9.88 .164 32.72 8 53 47.32 305 0 40.48 1 15.90 . . . . 21 34 4.73 5 Bessel ... 378 9 0 0.31 .164 33.72 8 59 27.75 305 537.35 1 15.70 . . 21 29 17.66 6 Rumker . . . 2800 9 8 15.56 .153 32.72 9 7 42.99 306 7 0.58 1 12.93 . . . . 20 27 41.66 7 B. A. C. . . . 3181 9 19 50.70 .093 32.72 9 12 18.07 306 51 53.55 1 11.01 ' ' • • 19 42 46.77 8 16 Bessel ... 341 8 6 48.57 .438 33.41 8 6 16.60 301 47 54.58 1 95.34 6.2 t t 24 46 58.67 P. 9 Washington . . . 8 30 19.63 .375 33.41 8 19 47.60 302 25 15.32 1 23.32 . , . . 24 9 36.01 10 Washington • . . 898 4.33 .425 32.41 8 27 33.35 303 36 46.22 1 33.75 . . . . 23 58 4.44 11 Bessel ... 344 8 40 54.90 .353 32.40 8 40 22.85 303 47 33.22 1 19.14 , , . , 23 47 13.83 19 Bessel ... 378 8 47 58.83 .399 32.40 8 47 86.83 304 19 31.70 V 17.61 . . . . 23 15 13.82 13 Bessel ... 378 8 54 30.07 .389 32.40 8 53 48.06 305 0 38.72 1 15.65 . . . . 21 34 4.84 14 Bessel ... 977 9 3 52.46 .382 32.40 9 3 90.44 305 33 0.40 1 14.17 . . . , 21 1 41.68 15 Washington . . . 9 847.33 + .316 32.40 9 8 15.15 306 19 9.88 — 1 12.11 . . . . +20 15 30.14 16 9 13 43.31 —1.236 32.40 9 13 9.67 35 12 37.85 4- 25 01 —58 39 34.95 17 9 20 52.10 — .018 32.40 9 90 19.52 334 35 13.60 -J- AV.V* 25 24 g l 20.45 18 18 Bessel ... 341 8 6 48.34 + .374 33.53 8 6 16.18 301 47 55.98 -1 27.72 5.8 ' ', +24 47 0.05 P. 19 Bessel ... 344 8 16 40.94 .423 32.53 8 16 8.83 303 9 50.92 1 26.49 . . . . 24 25 3.88 90 H. C 17513 8 46 0.63 .398 32.53 8 45 38.50 303 43 12.90 1 21.65 . . , . 23 51 37.06 31 Bessel . . . 278 8 52 45.83 .331 32.53 8 52 13.62 304 32 20.20 1 19.25 . . . , 93 227.36 93 Bessel ... 975 8 58 49.23 .370 32.53 8 58 17.07 305 28 34.90 1 16.56 . . . , 21 6 19.97 23 Bessel ... 375 9 5 0.46 + .363 32.53 9 4 98.39 305 55 37.15 — 1 15.30 . . . . +20 39 6.46 94 9 13 43.39 —1.318 32.53 9 13 9.54 25 12 37.52 4- 35.78 — 58 39 34.99 95 a Hydra 9 20 52.16 — .049 33.53 9 90 19.58 334 35 14.25 T * "• IV — 26.01 — 81 19.93 96 19 H. C 15608 7 53 10.83 + .379 33.69 7 52 38.53 302 15 57.00 1 34.79 4.1 ' [ +24 18 57.80 M. 27 Bessel ... 341 8 6 48.59 .331 33.70 8 6 16.32 301 47 57.80 1 96.49 . . . . 24 46 58.70 98 Washington . . . 8 28 35.71 .370 33.70 838 3.38 303 0 37.92 1 22.73 . . . . 23 34 14.83 '99 Benel ... 978 8 44 48.16 .302 32.70 8 44 15.76 304 1 17.38 1 19.87 . . . . 23 33 32.50 30 Bessel ... 978 8 50 58.33 .345 33.70 8 5095.98 304 50 36.30 1 17.46 . . . 21 44 11.17 31 H. C 18133 9 4 49.41 + .338 32.71 9 4 17.04 305 17 57.92 — 1 16.17 . . . . +31 16 48.36 32 ( Argus ... . 9 13 43.20 —1.157 33.71 9 13 9.33 35 13 42.10 + 25.47 —58 39 37.56 33 30 Washington . . . 828 35.89 + .383 32.95 898 3.33 303 0 35.90 — 1 21.72 3.9 +33 34 16.03 P. 34 H. C 17513 8 46 0.61 .435 32.96 8 4538.08 303 43 14.40 1 19.56 , . , . 22 51 35.37 35 Benel ... 978 8 52 46.30 .358 32.96 8 53 13.70 304 32 20.00 1 17.19 . . . . 23 227.33 36 Bessel ... 975 8 58 49.53 .396 33.96 8 58 16.97 305 3833.38 1 14.50 . , . . 21 6 21.33 37 Bessel ... 975 9 5 0.87 .390 33.96 9 4 98.30 305 55 36.88 1 13.27 , . . . 20 39 6.60 38 Bessel . . . 375 9 10 54.86 + .387 32.96 9 10 23.23 306 33 30.00 — 1 11.89 . . . . +30 3 39.03 30 9 13 43.75 —1.370 32.96 9 13 9.43 25 12 40.65 4- 25.11 —58 39 35.55 40 < Hydra 9 20 52.47 4- 017 33.96 9 90 19.49 334 35 14.35 T ~r> .* — 25.33 81 18.81 41 33 Washington . . . 8 20 20.05 T ' *' .341 33.22 8 19 47.17 303 25 11.38 1 33.08 5.5 +34 9 40.31 P. 49 Washington . , . 8 28 36.03 .333 33.29 8 38 3.14 303 0 34.18 1 21.31 . . 23 34 15.74 43 Bessel ... 378 8 47 59.31 .366 33.32 8 47 96.46 304 19 31.82 j 1 17.51 . . . . 23 15 14.30 44 H. C 18132 9 4 49.80 + .351 33.33 9 4 16.93 305 17 53.90 —1 14.76 . . . . +21 16 49.47 45 9 13 43.84 —1.320 33.22 9 13 9.30 35 12 40.18 + 24.98 —58 39 36.55 46 a Hydra 9 20 52.70 — .085 33.22 9 30 19.41 334 35 15.25 — 95. as — 81 21.39 47 33 Benel ... 339 7 51 32.68 +0.451 -33.41 7 50 59.72 302 6 36.60 — 1 34.33 + 5.1 • • +34 38 26.74 M. • 318 MERIDIAN CIRCLE OBSERVATIONS, 1851-52. i Dai*. l| Corrections for Apparent A. R. Circle reading, !..• .Ill "I !"lll Refrac- tion. Nadir. I Observed * - '= i IB*. Clock. ,.>... M.,I. microscopes. f declination. | 1 il~ a 1 1659. h. m. a. i. a. h. m. s. • t a i n n • • i n 1 Mar. 93 Washington. . . . 8 91 96.44 +0.444 -33.41 8 90 55.47 301 99 17.49 — 1 93.36 + 5.1 . . +94 5 34.95 M 9 W. . .i-ii i:ij[i"li .... 83044.88 .433 33.41 8 30 11.90 303 1098.59 1 91.98 . , . . 9394 91.77 3 B«sad ... 978 844 48.48 .471 33.41 8 44 15.54 304 1 19.80 I 18.83 . . , 94 3335.04 4 Beasd ... 975 9 5 0.96 .386 33.41 9 497.91 305 57 5.03 1 13.43 . . . 20 37 37.39 5a Baaad ... 975 9 5 1.91 + .386 33.41 9 496.19 305 55 33.75 — 1 13.50 . . . . +90 39 8.76 m 9 13 44.09 —1.493 33.41 9 13 9.19 35 19 40.06 + 95.14 —58 39 36.21 7 jS Beaad ... 341 7 5548.73 + .538 33.35 7 55 16.03 301 39 43.35 -1 95.43 5.0 +34 55 11.19 M. 8 Washington. . . . 89090.98 .539 33.25 8 19 47.56 30925 11.89 1 93.15 . . 94 9 40.44 9 Washington. . . . 83044.64 .580 33.95 8 30 11.97 303 10 30.58 1 90.78 . . . . 93 94 19.31 10 Beaad ... 978 8 44 1.08 .517 33.95 8 4398.35 304 1 16.70 1 18.39 . . . 9133 30.80 lit Beaad ... 978 8 44 48.44 .517 33.95 8 44 15.71 304 1 18.40 1 16.39 . . 99 33 29.10 19 c Beaad ... 978 846 31.34 .515 33.25 8 45 58.51 304 12 7.12 1 17.86 . . . , 999939.85 13s Beaad ... 975 9 5 0.14 .501 33.95 9 497.39 305 57 5.45 1 13.13 , 903736.79 14 1 Beaad ... 975 9 5 1.96 .501 33.95 9 4 38.51 305 55 35.95 1 13.19 • • • • 90 39 7.05 m 96 Waihington .... 8 21 27.65 .609 33.36 8 90 55.00 30329 26.00 1 29.40 4.9 , . 94 5 25.61 P. 16 Washington .... 8 33 13.96 .599 33.98 8 31 41.30 303 18 35.89 1 19.87 . . . . 33 16 13.98 17 Beaad ... 978 8 47 59.99 .643 33.26 8 47 26.60 304 19 39.98 1 16.83 . . . . 93 15 13.06 18 Waahington .... 9 8 47.93 + .568 33.36 9 8 15.94 306 19 8.95 — 1 11.39 . . . . +90 15 39.35 19 9 13 43.07 — .541 33.96 9 13 9.27 25 12 40.85 ~ -J 1 . >•<> —58 39 36.44 M a Hydra 9 90 53.36 + .346 33.26 9 20 19.47 334 35 14.28 — 95.02 — 81 90.05 91 97 Washington. . . . 8 90 92.76 T * .673 33.38 8 19 50.05 302 15 1.05 1 23.66 13.1 +24 19 43.63 M. 99 Washington .... 8 30 44.80 .663 33.38 8 30 19.08 303 1021.88 1 90.77 . . 33 94 19.90 93* Washington. . . . 8 33 13.70 .661 33.36 8 31 40.98 303 18 33.19 1 90.35 . . . . 93 16 8.94 94 Beaael ... 978 8 46 31.91 .651 33.38 8 4558.48 304 11 58.95 1 17.77 . . . . 999949.53 95 Waahington. . . . 9 8 47.67 .698 33.38 9 8 14.99 306 19 1.99 1 11.99 • • • • 90 15 31.78 96 99 II. C 18313 8 15 18.11 .674 33.31 8 14 45.57 302 34 25.00 1 33.38 8.9 , . 94 0 93.59 M. 97 Washington .... 8 30 23.36 .679 33.81 8 19 49.83 302 15 6.70 1 93.43 24 19 41.93 Washington .... 8 32 13.56 .790 33.31 8 31 41.07 303 18 33.62 1 90.16 . . t 93 16 11.75 99 Washington .... 9 8 47.67 .697 33.31 9 8 15.09 306 19 4.33 1 11.78 • • • • 90 15 32.67 30 30 Beaad ... 975 9 8 47.13 + .664 39.97 9 8 14.89 3064398.05 — 1 10.75 8.6 . . +19 59 10.01 P. 31 9 13 42.79 — .631 33.97 9 13 9.90 95 13 38.73 + 94.68 —58 39 38.99 38 9 90 53.09 + .335 33.97 9 90 19.48 334 35 10.45 — 95.11 — 8 1 90.03 33 31 H. C 16464 6 17 8.57 T ••*"*' .676 33.40 8 16 35.85 309 33 13.09 1 18.50 8.3 +94 1 31.29 M. 34 Beaad ... 975 9 847.44 .636 33.41 9 8 14.67 306 43 98.15 1 10.15 • • 19 59 9.81 35 April 9 Beaael ... 978 8 46 5.98 .934 33.84 8 47 33.07 304 95 59.75 1 18.23 7.7 . . 99 844.89 M. 31 Beaad ... 975 9 7 59.09 .897 33.85 9 798.14 306 43 8.09 1 11.88 • • • • 19 51 30.97 37 6 Washington. . . . 89091.99 .539 35.15 8 19 46 67 30995 6.00 1 23.98 8.9 . . 94 9 43.19 M. • Beaad ... 978 6 48 7.30 .566 35.16 8 47 33.71 304 95 55.35 1 17.15 . . . a +99 8 47.71 39 a Hydra1 990 54.07 .314 35.17 9 20 19.21 334 35 10.50 95.23 — 8 1 19.37 40 8 Washington. . . . 8 90 94.91 .599 mm 8 19 49.75 303 15 5.90 1 93.37 + 8.0 +94 19 43.58 M. 41 9 90 54.66 +0.997 •Mi 9 90 19.97 334*35 11.30 — 95.13 — 81 19.98 a Beasel 975, 4* win, — 3.97 rev. = 1' 31" JO. t Beaad 978, 4th wire, + 0.14 rev. = 1".70. • As there are two stars in the field differing in A. R. almost accu- c Beaael 978, 6th wire, + 5.13 rev. — 10 46".79. rately !>., it is supposed that the A. R. of the preceding was ob- i Betsel 975, 4th wire, — 3.23 rev. = 1' 30 .90. served white the declination of the following one was measured. <• Washington, 6th wire, —0.51 rev. •_-. 8' 11 .24. I ban transposed the circle readings to make the results conform • Mr. Phrlps observed this star on only one wire. It i» reduced on with the oWsrvatlOBa on pagei 318 and 317. J. M. 0. the supposition that it was B. INFERIOR CONJUNCTION OF VENUS, 1850-51 MERIDIAN CIRCLE OBSERVATIONS. - •™ 3 i P Corrections for S *SJ 2 . . Apparent Circle reading, Refrac- Nadir. a Observed. £ Date. Object. ||i A. R. mean of four tion. § apparent h; fc observed. microscopes. f declination. > wi C. ^ * Inst. Clock. S3 6 •£ ^ *• 2 Z c 1-° O 1850. b. m. s. 8. s. h. m. s. /„ • i 11 1 Oct. 19 a Scorpii . . . 16 90 31.90 +0.109 —18.035 16 30 13.98 352 39 21.05 — 0 6.72 — 2.92 . . —26 5 37.30 G. 3 a Tri. Aust. . . 16 33 8.44 .683 18.007 16 32 51.11 35 17 44.40 + 36.88 . , . , 68 44 44.25 3 Venus . . N.L. 16 39 49.14 .113 17.9*7 16 39 31.25 353 3 53.68 — 6.34 • • + 14.4 26 30 24.71 4 30 a Scorpii . . . 16 20 29.99 .139 16.164 16 20 13.96 352 39 22.90 — 6.73 5.18 . , 98 5 36.89 G. 5 a Tri. Aust. . . 16 33 6.47 .721 16.146 16 33 51.04 35 17 45.60 + 36.92 . . . . 68 44 43.23 6 Venus . . N.L. 16 43 37.01 .131 16.131 16 43 21.01 353 13 25.30 — 6.20 . • • 14.6 26 39 54.41 7 31 a Scorpii . . . 16 20 28.07 .096 14.241 16 30 13.93 352 39 23.90 — 6.72 6.47 . 26 5 36.60 G. 8 a Tri. Aust. . . 16 33 4.44 .721 14.334 16 33 50.94 35 17 45.62 + 36.89 . . . . 68 44 41.93 9 Venus . . N.L. 16 47 33.63 .133 14.204 16 47 8.56 353 22 33.55 — 6.06 • • 14.8 26 48 51.71 10a 23 a Tri. Aust. . . 16 33 3.93 .615 11.931 16 32 51.63 35 17 45.87 + 37.26 6.57 t f 68 44 42.45 G. 11 Venus . . NX. 16 51 6.10 .080 11.906 16 50 54.37 353 30 46.85 — 5.99 • • 14.9 28 57 15.08 19 23 a Scorpii . . . 16 30 33.97 .177 10.130 16 20 14.09 352 39 24.12 — 6.75 6.59 96 5 36.74 G. 13 a Tri. Aust. . . 16 33 0.97 .190 10.114 16 32 51.05 35 17 45.92 + 37.07 . . . . 68 44 42.36 14 Venus . . N.L. 16 54 46.58 + .176 10.085 16 54 36.67 353 38 39.00 — 5.83 • • 15.1 37 5 7.64 15 94 a Scorpii . . . 16 30 22.07 — .067 8.098 16 20 13.90 352 39 19.95 — 6.78 9.75 . . 36 5 36.31 G. 16 a Tri. Aust. . . 16 32 59.86 .815 8.081 16 33 50.96 35 17 41.75 + 37.22 . . . . 68 44 43.11 17 Venus . . N.L. 16 58 33.14 .068 B.045 16 58 15.03 353 45 54.17 — 5.75 • • 15.3 37 1326.86 18 i 95 a ScorpU . . . 16 30 20.08 .080 6.129 16 30 13.87 352 39 19.30 - 6.71 3.08 . 28 5 35.40 G. 19 < Tri. Aust. . . 16 39 57.77 .931 6.110 16 32 50.73 35 17 42.93 + 36.81 . . . . 68 44 43.54 90 Venus . . N.L. 17 1 59.84 .093 6.066 17 1 53.48 353 52 36.75 — 5.58 • • 15.6 37 19 9.58 31 98 • Scorpii . . , 16 20 17.76 .058 3.805 M 20 13.89 352 39 90.95 — 6.69 3.45 36 5 37.00 G. 99 a Tri. Aust. . . 16 33 55.61 .888 3.784 16 33 50.94 35 17 42.83 + 36.75 , , t f 68 44 43.01 93 Venus . . N.L. 17 5 31.36 .072 3.730 17 5 27.56 353 58 48.49 — 5.48 • • 15.9 37 35 33.38 94 97 a Scorpii . . . 16 30 15.41 .101 1.483 If 20 13.83 352 39 22.65 - 6.79 4.60 . 26 5 37.15 G. 95 a Tri. Aust. . . 16 33 53.64 1.416 1.462 16 32 50.76 35 17 41.73 + 37.30 . . . . 68 44 40.31 96 Venus . . N.L. 17 8 59.47 .133 - 1.402 17 8 57.95 354 4 38.23 - 5.47 • • 16.3 27 31 0.24 97 98 a ScorpU . . . 16 20 13.04 .135 + 0.945 16 20 13.86 352 3921.65 — 8.83 4.43 . . 36 5 36.39 G. 98 a Tri. Aust. . . 16 33 51.30 1.416 0.966 1C 32 50.75 35 17 41.60 + 37.47 . . 68 44 40.54 • Venus . . N.L. 17 13 24.09 .134 1.033 • 17 13 24.89 354 9 35.68 - 5.42 16.4 27 36 8.13 30 c 30 a Scorpii . . . 16 30 8.11 .079 5.807 16 30 13.84 352 3931.57 — 6.79 -4.60 . . 36 5 36.07 G. 31 « Tri. Aunt. . . 16 33 46.37 1.371 5.830 16 32 50.83 35 17 41.35 + 37.27 . . 68 44 39.91 38 Venus . . N.L. 17 19 3.66 -0.003 + 5.956 17 19 8.62 354 18 8.00 — 0 5.26 • • + 16.8 -27 44 40.83 a Passing cirri prevented a Scorpii being seen. c a Scorpii extremely unsteady. I The screw moving the wire* in collimation was turned last night to reduce the error. 320 MERIDIAN CIRCLE OBSERVATIONS, 1850-51. I! Correctioea for observed. 1 •j Circle reading, Refrae- Nadir. 1 Obaerred k Daw. on** mean of four tion. microscope!. \ declioatian. |' « £ J* i bat. Clock. f V 4 git 3 1890. h. m. a. a. a. k m. a. • / n it „ • // it i Oct. 31 • ScorpU . . . 16 90 5.39 -0.09d + 8.659 N 30 13.96 :t.-j :<•.' •-•-'. f." • 6.67 — 5.39 . . -96 5 36.50 3 • Tri. Au«t. . . 16 39 43.56 1.393 8.686 M :« (Ml 35 17 43.49 + 36.61 . . 68 44 40.60 3* Venna . . N.L. 17 S3 15.60 .116 8.787 i- •--: MJH 354 31 40.90 - 5.11 • • + 17.1 97 48 13.46 4 Nor. 1 • ScorpU . . . 16 90 9.43 .130 11.738 16 30 14.04 359 39 39.45 - B G'J 4.35 . . 96 5 37.30 O. 5 • Tri. Anat. . . 16 39 40.91 1.755 11.865 16 M SMI 33 17 45.20 + 36.71 . . . . 68 44 43.45 6 aOphiachl. . . ; 17 1 36.00 + .047 11.736 17 1 47.78 342 5 53.63 — 16.76 . . . a IS 31 58.41 7 Venua . . NX. 17 35 33.94 - .163 11.776 17 95 35.56 3543441.15 5.08 . . 17.3 97 51 14.91 M 9 • SeorpU ... 16 19 59.31 .160 14.698 16 90 13.85 3593925.68 - 6 69 8.89 . 98 535.99 6. 9 a Tri. Attrt. . . 16 33 38.33 9.330 14.795 16 3350.73 35 17 46.18 + 36.74 . . . . r.- 44 .in.-...' to ff Asm .... 17 13 38.05 1.169 14.810 ,- 12 51.70 11 Venua . . N.L. 17 38 37.67 .170 14.843 17 98 42.34 354 97 8.48 - 5.03 • • + 17.6 37 53 38.05 19 4 • Tri. Au«t. . . 16 39 39.31 9.946 20.847 M 33 50.81 35 17 45.50 + 36.71 8.38 . . 68 44 39.73 P. 13 a Ophiuchi . . . 17 1 36.68 .041 30.906 P 1 47.54 342 5 57.98 — 16.86 . . . . 15 31 57.93 14 P Are .... 17 19 39.07 1.174 20.939 17 1351.83 21 56 12.68 .+ 31.03 . . . . 5593 51.21 15 • Ane . 17 19 56.44 .961 911044 17 30 16.43 16 c Venua . . 8.L. 17 34 31.11 .373 20.973 17 34 41.81 5.01 • • — 18.3 97 51 5.05 17 5 • ScorpU . . . 16 It 50.31 .193 33.680 16 30 13.70 353 39 21.33 — 6.69 7.75 . . 96 533.68 O. 18 • Tri. Aoat. . . 16 39 38.73 -1.860 33.704 16 39 50.57 35 17 43.03 + 36.72 . . . . 68 44 37.89 19 || Ophiuchi . . . 17 1 33.35 + .035 23.760 17 1 47.04 343 5 53.55 — 16.77 . . . . 15 31 54.93 90 Venus . . NX. 17 37 9.84 - .195 U.eW 17 37 33.47 354 31 33.40 4.97 . . + 18.5 37 67 55.07 31 7 • ScorpU . . . 16 19 44.96 .078 38.919 U 30 13.80 353 3929.33 — 8.70 5.68 . . 96 535.74 G. 99 • Tri. Ann. . . 16 33 33.33 I.I :>J 98.941 If 33 50.58 35 17 41.95 + 36.79 . . . . 6844 38.95 93 n OphiucU . . . 17 1 18.46 + .099 •MM 17 1 47.55 343 5 53.68 — 18.79 . . . . 15 31 56.10 94 Venua . . N.L. 17 49 31.89 — .110 +39.062 17 43 0.84 354 31 44.93 4.98 • • 19.0 97 58 19.16 35 •8 • ScorpU . . . 16 30 44.10 .085 —30.047 16 30 13.99 353 3999.53 — 6.7S 6.05 . . 96 5 35.65 C. 96 • Tri. Auat. . . 16 33 23.46 -tjm 30.052 16 33 50.74 35 17 40.88 + 36.99 . . 68 44 37.64 37 a Ophiuchi . . . 17 3 17.71 + .109 30.065 17 1 47.75 342 5 57.98 - 18.85 . . 15 33 0.37 98 Venua . . N.L. 17 46 5.69 - .099 30.084 17 45 35.51 314 31 11.88 5.00 • • 19.3 97 57 45.89 mt 10 • ScorpU . . . 16 30 45.16 .190 31.453 16 90 13.59 352 39 24.65 - 6.78 7.73 € t 96 5 36.03 G. 30 a Tri. AUM. . . 16 33 34.09 -1.564 31.456 16 33 51.07 35 17 40.15 + 37.25 . . . . 68 44 35.56 31 a Ophiuchi . . . 17 2 18.94 + .036 31.466 17 1 47.51 343 5 55.18 — 17.01 . . . . 15 31 56.33 as Venua . . N.L. 17 50 56.94 - .l.'Jl 31.483 17 5035.31 354 38 36.78 5.09 . . 90.0 37 55 9.85 33 •' Bafiturii . . 18 5 30.39 - .076 31.487 U 448.73 347 39 93.70 11.59 . . • • 31 5 39.34 Mi n * Ophiuchi . . . 17 9 19.39 + .063 31.945 17 1 47.40 349 5 54.95 — 16.87 7.48 , . 15 31 56.49 as •Am .... 17 30 48.86 — .643 31.936 17 30 16.38 16 1896.08 + 15.38 . . . . —49 44 59.77 31 • Ophiuchi . . . 17 98 30.36 + .493 31.933 17 37 58.83 31354 1.88 — 54.39 . . . . +19 40 33.93 37 Venui . . N.L. 17 53 13.31 - .140 31.993 17 99 40.15 354 9t 37.93 5.08 . . 90.3 -97 53 10.86 *V 13 • ScorpU . . . 16 90 44.54 .086 30.687 16 90 13.79 359 3995.73 - 6.75 10.05 . . 96 5 34.83 O. at • Tri. Aun. . . 16 33 33.67 •J !>.> 30.680 16 39 50.03 35 17 41.60 + 37.10 . . . . 68 44 34.54 4» • Are .... 17 90 48.08 1.019 30.653 16 30 16.35 16 18 36.95 + 15.34 . . . . 49 44 58.13 41 Varna . . N.L. 17 57 18.57 .087 30.639 17 56 47.85 354 91 9.33 - 5.18 • • + 91.0 97 47 40.99 4* 14 • BeorpU . . . 16 90 43.83 .114 39.736 16 30 13.98 359 39 36.30 — 6.53 —11.88 . . 96 533.68 G. 43 • Tri. Ann. . . 16 33 33.41 -S.148 39.736 U' 33 50.54 35 17 45.58 + 35.88 . . . . 68 44 35.47 44 a Ophiuchi . . . 17 9 17.01 +0.105 —39.705 17 1 47.41 343 557.38 - 16.38 • • • • —15 31 55.01 • Thin ti the beat observation yet made of the planet. t a ScorpU and a Trianfuli Australia not aeen by reaaon ofcloudi. t Llfht cirri over all the heavena. / The observations of a Scorpii and a Trianfuli Australia are not c Recorded N.L., but the dlaeordance with cphemerii Inducea me reliable in declination, both objecu being rather like flaring to believe the 8.L. wu really obtervrd, and it U reduced accord- mops than aura, and very unneady. ing) . J. M. G. * At 3*. 90m. ihortened clock pendulum and advanced hand one t • ScorpU wu eieeedlnfly unateady. • Are wu aeen but too minute. dimly to measure ; It certainly la not ao bright u 0. m Opbluchi oWnirad by cload*, through which Venui also wu aeen. Wlraa U, P, G of •' Bafiturii occulted by horizontal wire. AT SANTIAGO DE CHILE. 321 V 11 Corrections for 1 I £ S ~ 0 Apparent Circle reailins. Refrac- Nadir. S Observed aj Date. Object. 1 1.§ A. R. observed. mean of four microscopes. tion. G apparent declination. • Inst. Clock. m ~6 Jl» 1 a O 1850. h. m. s. s. 8. h. m. 8. • , „ , « a // . , /, 1 Nov. 14 a Arc .... 17 30 46.84 —0.805 -29.691 1730 16.35 16 18 27.53 -0 14.83 —11.88 . . —49 44 56.37 G. 2 Venu« . . N.L. 17 59 10.03 .151 29.664 17 58 40.22 354 17 47.20 5.06 • • +21.4 27 44 17.55 9m 15 « Scorpii . . . 16 20 42.73 .192 28.587 16 20 13.95 353 39 27.63 — 6.67 10.85 26 5 36.00 G. 4 a Tri. Aust, . . 16 33 21.60 —2.306 28.578 16 32 50.72 35 17 44.58 + 36.37 . . 68 44 35. S9 S i? Ophiuchi . . . 17 2 16.06 + .036 38.559 1 7 1 47.54 342 5 58.35 — 16.61 . . 15 31 56.78 t a Arm .... 17 21 46.07 — .908 28.546 17 21 16.69 16 18 29.53 + 15.04 . . 49 44 59.61 7 Venua . . N.L. 18 0 53.30 .329 28.519 18 0 24.55 354 1358.10 - 5.19 21.7 27 40 29.65 8 16 a Scorpii . . . 16 20 41.59 .162 27.721 16 20 13.71 352 39 25.95 — 6.59 10.73 . . 26 5 34.52 G. 9 « Tri. Aust. . . 16 33 20.80 —2.790 27.712 16 32 50.30 35 17 44.58 + 36.19 . . . . 68 44 35.93 10 i| Ophiuchi . . . 17 2 14.96 + .118 27.691 17 1 47.39 342 5 58.63 — 16.52 . . 15 31 57.27 11 a Ane .... 17 21 44.87 —1.019 27.678 17 21 16.14 16 18 38.15 + 14.9S . . 49 44 58.27 13 Venui . . N.L. 18 2 28.07 .205 27.649 18 2 0.22 334 9 35.90 — 5.23 • . 32.1 27 33 7.93 13 1 17 a Scorpii . . . 16 20 40.66 .239 26.554 16 20 13.87 352 39 28.95 - 6.78 13.58 26 5 33.48 G. 14 a Tri. Aust. . . 16 33 20.27 -2.948 26.513 16 32 50.78 35 17 45 10 + 37.18 . . 68 44 31.5'J 15 1 0phiuchi . . . 17 2 13.68 + .049 26.517 17 1 47.21 342 6 0.35 — 17.05 . . . . 15 31 55.61 16 a Are .... 17 21 44.01 —1.153 26.500 17 21 16.36 16 1828.55 + 15.44 . . . . 49 44 53.30 17 Venm . . N.L. 18 3 54.03 — .281 26.462 18 3 27.29 354 4 48.30 — 5.48 • • 33.4 27 31 17^3 18 c 18 a Scorpii , . 16 20 38.79 + .203 25.167 16 20 13.82 352 39 28.98 — 6.63 15.18 . , 2f> 5 33.06 a. 19 a Tri. Aust. . . 16 33 17.79 —2.053 25.154 16 33 50.58 35 17 45.83 + 33.33 . . 68 44 32.77 90 i| Ophiuchi . . . 17 2 12.16 + .444 25.126 17 1 47.47 342 6 0.63 — 16.54 . . . . 15 31 54.80 91 « Arss .... 17 21 41.98 - .606 25.107 17 21 16.37 16 18 29.88 ;+ 14.98 . . . . 49 44 55.57 99 Venus . . N.L. 18 5 10.31 + .169 25.064 18 4 45.43 353 59 31.23 — 5.39 • • 32.8 37 25 59.35 23 «• 19 « Scorpii . . . 16 20 37.46 + .197 23.708 16 20 13.95 352 39 29.35 — 6.55 14.10 . . 26 5 34.59 G. 34 a Tri. Au»t. . . 16 33 16.87 —2.643 23.695 16 32 50.53 35 17 46.85 + 35.93 . . . . -68 44 34.57 35 a Ophiuchi . . . 17 2821 11 +1.230 23.639 17 27 58.70 313 54 6.80 — 52.71 . . . . + 12 40 34.12 26 Venm . . N.L. 18 6 17.90 .158 23.601 18 5 54.46 353 53 53.43 5.43 33.2 -27 20 21.69 37 « 20 a Scorpii . . . 16 20 35.20 + .117 21.059 16 20 14.26 353 39 32.55 — 6.69 16.45 . . 26 5 35.30 G. 38 a Tri. Aust. . . 16 33 15.16 —3.093 21.048 16 32 51.02 35 17 49.58 + 36.73 . . . . 68 44 35.75 39 0 Aim . . . . 17 13 14.35 —1.371 21.014 17 12 51.97 21 56 15.60 + 20.90 . . . . i 55 33 45.94 30 Venua . . N.L. 18 7 14.73 + .112 20.968 18 6 53.87 3o3 47 41.15 — 5.65 • • 33.6 27 14 11.54 31 31 a Scorpii . . . 16 20 34.01 + .219 20.020 16 30 14.30 352 39 39.78 - 6.66 13.45 . , 26 5 35 55 o. 33 « Tri. Aust. . . 16 33 13.79 —3.097 30.009 16 32 50.68 35 1746.15 + 35.53 . . . 68 44 35.13 33 n Ophiuchi . . . 17 2 7.01 + .595 19.984 17 1 47.63 342 6 3.80 — 16.68 . . . . 15 31 57.56 34 a Arte .... 17 31 37.39 — .925 19.988 17 31 16.50 16 18 29.53 + 15.10 . . . . 49 44 57.07 35 Venm . . N.L. 18 8 3.17 + .207 19.928 18 7 43.45 353 41 5.13 — 5.72 1 . . +24.0 — J7 7 35. 8i »/ 93 0 Ophiuchi . . 17 36 31.38 1.027 17.833 17 36 4.59 331 56 13.98 40.84 14.15 . + 4 33 15.12 M. 37 Venus . . 8.L. 18 9 10.01 .162 17.793 18 8 53.38 353 27 17.13 5.99 , , -24.7 -26 53 58.18 38 a Lyre .... 18 33 7.07 +2.162 17.772 18 31 51.46 287 57 18.40 —2 39.22 • • • • +38 39 9.08 39 36 a Tri. Aust. . . 16 33 6.84 —2.174 14.030 16 32 50.64 35 17 42.22 + 36.25 -14.73 t t -68 44 29.63 a. 40 f| Ophiuchi . . . 17 2 1.03 + .497 14.011 17 1 47.52 342 6 1.10 — 16.55 , , 15 31 55.71 41 /3 Are .... 17 13 6.43 — .885 14.004 17 12 51.54 21 56 13.43 + 20.63 . . . . -55 22 45.23 43 a Ophiuchi . . , 17 28 11.66 +1.127 13.994 17 27 58.80 313 54 7.28 — 53.18 . . +12 40 3J.74 43 Venus . . N.L. 18 931.70 .231 13.967 18 9 17.96 353 1 0.80 6.28 . . +36.0 -23 27 31.68 44 a Lyre .... 18 32 3.69 +1.880 -13.953 18 31 51.62 287 57 16.45 —3 36.35 • • +38 39 8.74 a Venus was seen through cirri, and the contact with the hori- e Cirri oil (he time. Declination of a Seorpii on last wire. Tran- zontal wire is doubtful. sits of a Scorpii and a Trianguli Australia observed at only one 6 After the observations, let down the east end of the ails. wire. Microscopes B, C, and D were moved before observa- c The star being faint, the observation of a Arte is not very good. tion!). d Constantly passing cirri, and declinations uncertain. Heavy / Objects very unsteady. earthquakes at La Serena both before and after the observa- tions of the Venus stars. 41 MERIDIAN CIRCLE OBSERVATIONS, 1850-51, i I Dal*. Object. I! ill Correction! for Apparent obaerv.d. Oi.iVn-adine, mean of four microKopea Refine- lion. Nadir. Corr'nforaemld. r vcd apptirriit IUOII. i Inat. Clock. • i a 1 II u H • / II ,. 1850. Nor. V « Tri. Au.t. . . 16 33 i.n -9.303 -19.796 16 32 50.66 35 17 44.15 +036.85 —13.90 -68 44 32.99 G. t • Ophiuchi . . . \~ 9 0.01 + .335 19.774 17 1 47.58 342 6 2.73 — 16.83 . . . . 15 31 57.90 a 0 Are .... 17 13 5 44 -1.031 12.765 17 12 51.64 21 56 14.35 + 90.97 . . . . -55 22 47.31 4 • OpIiiucU! . . . 1798 10.60 + .935 12.754 17 27 58.81 313 54 9.38 — 54.05 . . • • + 19 40 32.68 5 VCDUI . . N.L. 18 9 17.80 .074 19.792 IB 9 5.15 359 51 33.05 6.59 . . +96.4 -36 18 4.92 i • Lyre .... 18 32 9.91 +1.700 13.705 18 31 51.20 287 57 20.38 -238.92 • • • • +38 39 6.55 :, 98 0Are .... 17 13 4.43 -1.196 11.894 17 12 51.41 21 56 9.80 + 81.07 11.48 • • —55 22 45.98 a. ^ • Ophiuchi . . . 1728 9.45 +1.091 11.810 17 27 58.73 313 54 7.65 - 54.30 . . . . + 19 40 32.94 t Venui . . N.L. 18 8 52.67 .102 11.719 18 8 40.99 352 41 38.45 6.79 . . 96.8 —96 8 19.94 10 • Lyre .... 1832 1.16 +2.900 11.764 18 31 51.59 287 57 18.68 -339.65 • • • • +38 39 6.56 11 ao • Tri. Au.t. . . 16 33 3.51 —2.340 10.924 16 32 50.95 35 17 47.50 + 37.05 17.85 . , -68 44 33. » a. 12 « Opbtachi . . . 17 1 5fl.21 + .319 10.913 17 1 47.61 343 6 6.10 - 16.91 . . . . 15 31 57.23 11 Venui . . N.L. 18 6 32.55 .039 10.M 18 621.70 359 90 94.73 7.04 . . 97.6 -25 46 53.33 14 • Lyre .... 18 32 0.70 +1.647 10.879 1831 51.47 287 57 28.58 3 39.67 • • • • +38 39 3.05 ,. • Tri. Auat. 16 33 2.55 —9.379 9.702 16 32 50.48 17.53 a. 16 Venoa . . N.L. 18 528.57 + .068 9.659 18 5 18.98 351 57 6.48 7.36 98.4 —95 23 35.68 n • a Lyre .... 18 31 59.47 +1.643 9.C46 1831 51.47 987 57 97.18 —938.74 • • . . +38 39 3.20 18 «• 4 « Tri. Auat. . . 1633 1.21 -9.251 8.436 16 32 50.52 35 17 47.10 + 36.93 18.15 . . -6844 31.77 a. U /?Are . . . . 17 13 0.68 — .953 8.418 17 19 51.51 21 56 16.88 + 91.02 . . . . 5529 45.64 to Venua . . N.L. 18 2 43.73 + .136 8.397 18 2 35.47 351 31 51.50 — 7.77 . . 99.1 —24 58 20.57 91 • Lyre .... 18 31 57.96 + 1.664 8.384 18 31 51.94 287 57 97.60 •j m.m • • +38 39 4.92 •• 5 « Tri. Auit. . . 16 33 0.73 —2.123 7.815 16 32 50.79 35 17 45.98 + 36.74 18.18 . , —68 44 30.43 a. 91 0 Arr .... 17 13 0.43 — .920 7.797 17 12 51.71 21 56 16.78 + 90.91 . . . . —55 22 45.40 -'I 0 Ophiuchi . . . 17 36 11.47 + .791 7.787 17 36 4.47 321 56 24.35 — 40.63 . . . . + 4 38 9.57 95 Venui . . N.L. 18 1 6.86 .164 7.777 18 0 59.25 351 18 28.25 7.94 . . 29.4 —24 44 57.43 M • Lyre .... 18 31 57.51 1.672 7.763 18 31 51.42 287 57 28.15 938.44 • • • • +38 39 9.58 •V 8 a ScorpU . . . 16 20 22.47 + .161 8.569 16 20 14.06 352 3924.18 — 6.67 8.78 . . -96 5 34.69 a. n a Tri. Auat. . . 16 33 0.57 —1.132 8.573 16 32 50.86 35 17 36.13 + 36.60 . . . . 68 44 99.84 u a Are .... 17 20 95.51 - .983 8.589 17 20 16.64 16 18 24.03 + 15.13 . . . . 49 44 56.27 I) Venu . . N.L 17 55 26.04 + .190 8.601 17 55 17.63 350 35 90.88 — 8.57 . . 30.9 —24 1 59.62 at a Lyre .... 18 31 58.69 +1.103 8.613 18 31 51.38 387 57 18.68 —9 37.84 . . . . +38 39 2.05 3) 10 « Tri. Au.t. . . 16 33 1.94 -1.334 9.664 16 32 50.94 35 17 36.40 + 36.48 8.02 . . -68 44 30.75 M. 3} Venni . . N L. 17 51 9.04 + .099 9.6J9 17 50 52.46 350 4 36.78 9.02 . . 30.6 —23 31 16.23 14 a Lyre .... 18 31 59.73 1.068 9.691 18 31 51.11 S87 57 17.90 9 37.97 • • • • +38 39 9.30 „ 19 Venui . . N.L. 17 46 15.06 .130 10.003 17 46 5.19 349 32 30.13 9.44 9.83 +31.0 —92 58 7.79 M. M • Lyre .... 18 31 59.64 1.759 10.003 18 31 51.40 987 57 17.43 9 96.03 • • • • +3839 1.06 »I 13 Vena . . 8.L. 17 43 45.58 .137 10.559 17 43 35.16 349 17 2.95 9.59 8.70 -31.1 —22 42 38.75 M. « • Lyre .... 18 31 59.59 1.759 ID. 495 18 31 50.85 987 57 16.25 +934.55 • • +3839 1.11 a, to aScorpii . . . 16 90 90.95 + .914 6.736 16 20 14.43 352 39 30.03 — 6.74 -13.90 . . -28 5 35.98 O. 40 « Tri. Anil. . . 16 33 0.81 -9.771 6.731 16 39 51.31 35 17 38.68 + 37.05 . . . . 68 44 28.49 41 • Ophiuchi . . . 17 1 53.90 + .577 6.792 17 1 47.75 342 6 3.95 — 16.91 . . . . 15 32 0.73 49 0 An . . . . 17 19 59.68 —1.170 6.718 17 1951.79 21 56 6.18 + 91.08 . . . . 5522 39.95 41 Venui . . N.L. 17 91 98.89 + .437 - 6.715 17 91 99.54 346 48 36.73 — 13.97 • • +30.8 —20 15 7.95 « a Arr certainly la not ao bright a. /3, and yenterday waa not dla- 4 Failing cnmuli during olwenraUona. tlnguUhable. • Lyra) ulremely tremnloni. t Declination of H Ophiurhi doubtful, a Am not diitinguiihable. i The Man were rery much blurred and quite unMeady. a Are / < Are rathe r l.nchi. r llian /?. not diaeernlble. * The cretcent of Venui very alender; and cnupa badly defined. t Coeatant cumuli. Declination of Venui very doubtful. AT SANTIAGO DE CHILE. 323 a .- c 1 C V £S Corrections for 1 i Lpparent Circle reading, Refrac- Nadir. I Observed 1 Date. Object, ~-~z t A. It. mean of four tion. 0 apparent i o > ^ - observed. microscopes. • declination. E i .= * lost. Clock. 1, I o Q • 0 "° . O 1850. h. m. s. s. s. h . m. s. • IS) / /. H II 9 / ii la Dec. 99 « Scorpii . . . 16 30 30.38 +0.347 —6.303 16 30 14.33 353 39 31.15 - • 6.68 —13.55 . —36 5 36.81 G. 9 « Tri. Aust. . . 16 33 0.53 -2.771 6.301 16 32 51.46 33 1738.10 + 36.71 . . . . 68 44 27.15 3 i) Ophiuchi . . . 17 1 53.34 + .577 6.398 17 1 47.62 312 6 4.50 — 16.76 . . . . 15 33 0.08 4 /JAra . . . . 17 13 59.40 -1.170 6.397 17 13 51.93 21 56 8.70 + 90.89 55 32 41.93 5 Venus . . N.L. • • • • 346 33 27.23 — l-i.40 • • +30.4 19 59 57.56 6 29 < Tri. Ann. . . 16 33 59.77 —3.268 4.656 16 33 51.86 35 17 26.33 + 36.84 3.10 . 68 44 25.86 a. 7 » Ophinchi . . . 17 1 53.50 + .123 4.655 17 1 47.37 • 343 5 53.90 — 16.82 . . . . 15 31 59.87 8 Venus . . S.L. 17 8 9.51 .040 4.655 17 8 4.90 345 5 20.53 13.87 • • —28.2 1831 1.25 9 31 Venus . . 8.L. 17 6 24.03 + .038 4.460 17 6 19.63 344 47 8.75 14 20 3.95 27.4 18 13 49.09 G. 1851. 10 i Jan. 5 < Scorpii . . . 16 30 18.60 — .204 3.674 16 30 14.72 332 39 24.95 - /6.79 6.40 . . 26 537.65 a. 11 • Tri. Anst. . . 16 32 59.97 —4.238 3.671 16 32 52 06 35 17 27.60 + 37.29 . . 68 44 24.38 19 Venus . . S.L. 17 4 56.64 + .124 3.651 17 4 53.11 344 1547.15 — 14.85 25.4 17 41 26.39 13 //Are .... 17 12 58.15 —2.056 3.616 17 12 53.45 21 55 59.00 + 22.38 . . . , —55 22 40.87 14 « Ophiuchi . . . 17 28 1.49 +1.157 3.636 17 37 59.01 313 54 12.43 - 54.69 • • +12 40 99.77 15 « « Scorpii . . . 16 20 18.00 — .964 3.863 16 20 14.87 353 39 29 38 — 6.66 8.48 . . —26 5 40.13 G. 18 < Tri. Aust. . . 16 39 59.54 —4.359 3.856 16 33 52.33 35 17 31.05 + 36.57 . . 68 44 35.03 17 Venus . . S.L. 17 5 8.48 + .070 2.837 17 5 5.71 344 11 53.85 — 14.63 . . 95.0 17 37 31.63 18 « Are .... 17 9091.55 —1.531 2.829 17 90 17.19 16 18 17.35 + 15.12 . . . . —49 44 49.88 It « Ophiucbi . . . 17 98 0.99 +1.175 l.tM 17 97 59.34 313 54 13.55 — 53.63 • • • • +12 40 22.67 90* 7 • Bcorpii . . . 16 90 17.66 - .340 9.439 16 90 14.99 352 39 27.90 - 6.72 7.50 . . —26 5 39.57 G. 31 « Tri. Amt. . . 16 33 59.43 —4.568 9.425 16 32 59.44 35 17 31.18 + 36.89 . . . . 68 44 26.46 • Venus . . 8.L. 17 5 29.94 + .117 3.415 17 5 27.64 j 344 8 43.45 — 14.81 . . 94.6 1734 31.43 93 • Are .... 17 2021.29 —1.585 3.411 17 90 17.29 16 18 17.33 + 15.25 . . . . —49 44 50.97 94 « Ophiucbi . . . 17 28 0.59 +1.323 2.408 17 27 59.40 313 54 12.85 — 54.11 • • +12 40 22.87 954 6 « Scorpii . . . 16 30 17.20 — .163 9.069 16 30 14.98 353 39 25.08 - 6.69 7.68 , . —26 5 36.60 G. 96e « Tri. Aust. . * 16 32 58.80 —4.257 2.058 1 ; ta 52.49 97 Venus . . B.L. 17 6 0.84 j+ .188 2.046 17 5 58.98 344 6 13.50 — 14.78 . . 24.3 17 31 52.73 98 0Are . . . . 17 13 56.68 -3.113 2.044 17 19 52.53 31 56 1.70 + 90.90 . . . . 55 22 40.81 99 a Are .... 17 20 94.74 1.481 2.041 17 20 17.22 16 18 17.35 + 15.19 • • • • 49 44 50.75 30 9 « Scorpii . . . 16 SO 16.56 .277 1.373 16 30 14.91 352 39 24.73 — 6.66 8.90 t 36 5 35.76 G. 31 a Tri. Aust. . . 16 33 58.23 4.336 1.369 16 33 52.53 35 17 29.13 + 36.55 . . 68 44 23.37 • Venus . . 8.L. 17 6 40.83 .007 1.357 17 639.46 344 4 26.88 — 14.74 . . 93.9 —17 30 5.93 33/ « Are .... 17 20 20.19 —1.660 1.353 17 20 17.18 34 • Ophiucbi . . . 17 97 59.70 -+1.010 1.350 17 27 59.36 313 54 14.45 53.62 - • • • +12 40 21.48 »g 19 « Scorpii . . . 16 90 16.36 ;— .977 1.198 16 30 14.96 353 39 36.18 - 6.65 7.63 , , —26 5 37.79 G. 36 « Tri. Aust. . . 16 32 57.58 —4.056 1.124 16 39 52.40 35 17 27.48 + 36.49 . . . . 68 44 22.23 37 Venas . . S.L. 17 7 29.97 + .049 1.115 17 7 28.90 344 3 16.28 - 14.74 93.4 17 26 56.40 36 a Are .... 17 30 19.91 —1.491 1.119 17 90 17.31 16 18 15.98 + 15.09 . . . . —49 44 48.63 39 « Ophiuchi . . . 17 27 59.29 + 1.049 1.149 17 27 59.33 313 54 13.50 — 53.53 • • • • +« 40 21.76 40 11 « Scorpii . . . 16 20 16.43 — .228 1.980 16 90 14.92 353 39 29.95 — 6.69 -10.50 . —26 5 38.65 6. 41 * Tri. Aust. . . 16 32 58.05 —4.253 1.282 16 33 52.53 35 17 31.83 + 36.74 . . . . 68 44 23.96 43 Venus . . 8.L. 17 8 98.34 + .lit 1.385 17 8 27.17 344 2 47.85 — 14.84 —93.1 17 28 25.30 43 * Are .... 17 30 30.30 1—1.610 1.386 17 90 17.30 16 18 90.75 + 15.19 . . —49 44 51.33 44 « Opbiuchi . . . 17 97 59.41 +1.183 —1.968 17 37 59.31 313 £4 19.08 — 53.88 . • • . . +19 40 19.41 a Declination observed at wire F. DECEMBER 23. — It being (bund that the female screw to the mi- i * Scorpii very unsteady. Declination of < Ophiucbi uncertain. crometer moving the horieonta! system of wires was worn out, « Are not to be seen. the eye-piece was removed, and the system of wires being c Measured diameter of Venus doubtful. accidentally broken, anew one was inserted; the instrument d Declination of < Are uncertain. was ready for use again on Lbc S7lh, but that and the following e Seen by flashes only. days were cloudy. / Too faint to measure declination. g a Arse brighter than fl. The instrument was lifted from the Vs and pivots and micrometers cleaned. MERIDIAN CIRCLE OBSERVATIONS, 1850-61, || Corrections for Circle readlnf, Refrac- Nadir. I Observed j : -. Object. I.*. Clock. obse'rved. mean of fuur i. . M tion. = tSSSm. j t ! - - 1 i 1851. h. m. a. a. s. h. so. s. • / u i n „ . • / 11 1 Ju. IS • Scorpli . . . 16 90 16.31 -0.140 — 1.416 16 90 14.75 3533030.78 — 6.61 -13.75 . . -at 536.31 <:. • • Opbiuchi . . 17 1 49.61 + .938 1.420 17 1 48.43 343 6 8.15 16.58 . . 15 32 3.71 * Venus . . 8.L. 17 9 35.35 .159 1.491 17 9 33.99 344 9 49.08 14.88 . . -22.7 -17 98 23.84 4 • Ophluehl . . 17 97 59.40 +1.987 1.433 17 97 59.95 313 54 19.75 53.98 . . . . +12 4021.39 •• U a Scorpil . . . 16 20 16.03 - .254 .586 16 20 15.19 | 359 39 32.08 - i- ,.: 13.05 . . —36 5 38.95 6. • • Tri. Au«t. . . 16 33 58.10 -4.698 .578 16 33 53.83 35 17 34.63 + 38.61 . . . . 68 44 94.08 T * Ophiuchl . . 17 1 49.01 + .210 .560 17 1 48.66 343 6 6.43 — 16.71 . . . . 15 33 9.56 8 Venus . . 8.L. 17 10 49.61 .198 .555 17 10 49.18 344 333.48 14.78 . . 99.3 —17 28 59.94 • • Ophiuchl . . 179758.76 1.303 — .544 17 97 59.53 313 54 16.85 53.70 • • • • +13 40 34.01 lot 14 0' Scorpil . . . 1556 44.94 + .063 + .338 15 56 45.33 345 57 98.10 13.88 15.40 . . —19 23 95.71 0. 11 m Scorpii . . . 16 90 14.70 — .010 .336 16 20 15.03 353 39 33.35 — 6.63 . . . . 28 5 37.11 U < Tri. Ami. . . 16 33 53.35 - 4 l .344 16 33 59.70 : 35 17 36.88 + 36.42 . . . . 68 44 23.79 u * Opbiuchi . . 17 1 47.96 + .101 .360 17 1 48.43 343 6 8.58 — 16.63 . . . . 15 33 9.45 u Venus . . 8.L. 17 13 11.83 .081 .366 17 12 13.28 344 4 29.88 14.69 . . 21.9 —17 30 3.78 u • Ophiuchl . . 17 27 58.40 .339 .375 1797 59.11 313 54 35.50 53.43 • • • • +12 40 17.43 16c U 0' Scorpil . . . 15 56 44.07 .478 .937 15 56 45.48 345 57 28.73 12.85 19.88 . . —19 23 98.88 0. 17 • Scorpii . . . 16 20 13.94 + .434 .946 1690 15.31 353 39 33.38 — 6.98 . . . . 26 5 38.41 18 « Tri. Au-t. . . 163951.95 - .090 .951 \ 16 33 53.99 35 17 35.13 + 36.36 . . . . 68 44 94.50 19 f Ophiuchl . . IT 1 47.03 + .306 .963 17 1 48.50 343 6 6.48 — 16.60 . . . . 15 32 9.89 H Venn* . . 8.L. 17 13 41.88 .491 .968 17 13 43.34 344 5 58.88 14.64 91.5 —17 31 35.75 91 • Opbiuchi . . 17 97 57.77 .781 .973 17 27 59.50 313 54 30.63 53.33 • • • • + 12 40 19.69 C9J 16 /?' Scorpli . . . 15 56 43.56 .510 1.396 15 56 45.47 345 57 98.85 12.86 14.38 . . —19 23 97.50 0. 23 a Scorpii . . . 16 90 13.34 + .494 1.404 16 20 15.17 353 39 34.20 - 6.62 . . . . 26 539.09 94 * Tri. Aust. . . 16 33 53.04 — .587 1.408 16 33 53.86 35 17 34.78 + 36.39 . . . . 68 44 31.68 25 17 Opbiuchi . . 17 1 46.57 + .559 1.418 17 1 48.55 342 6 8.68 — 16.61 . . . . 15 33 3.58 98 Venus . . 8.L. 17 15 19.86 .533 1.423 17 15 21.83 314 7 58.73 — 14.63 . . 91.9 17 33 34.41 27 a Are .... 172015.98 .049 1.421 172017.45 16 18 33.05 + 15.04 . . * • —49 44 49.60 96 « Ophiuchl . . 17 97 57.17 .938 1.436 17 27 59.53 31354 31.30 — 53.36 ' • • • +13 40 20.55 • 17 0' Scorpil . . . 15 56 43.50 .175 1.841 15 56 45.59 345 57 97.83 13.04 13.43 . -19 83 27.25 0. X a Scorpil . . . 18 20 13.39 + .007 1.852 16 90 15.25 352 39 33.65 — 8.71 . . . . 96 5 39.40 31 e Tri. Aim. . . 16 32 52.80 —1.593 1.858 16 33 53.07 35 17 31.93 + 38.88 . . . . 68 44 34.27 • • Ophiuchl . . 17 1 46.57 + .173 1.872 17 1 48.61 342 6 8.58 — 16.84 . . . . 15 33 4.30 33 Venus . . 8.L. 17 17 5.71 .149 1.879 17 17 7.73 344 10 19.18 14.78 90.9 —17 35 55.96 31 a Opbiuchi . . 17 97 56.96 .571 1.885 178759.43 313 54 33.33 54.09 - - • • +13 40 19.40 » 90 0' Scorpil . . . 15 56 43.47 .039 9.109 15 58 45.61 345 57 26.65 13.04 11.33 t , —19 93 28.17 a. a Scorpii . . . 16 90 13.08 + .018 9.098 1690 15.90 3533031.73 - 6.79 . . . . 96 5 39.57 37 • Tri. Aim. . . 16 32 51.97 - .956 9.095 16 3353.11 35 17 33.53 + 36.88 . . . . 684483.97 • ffAn .... 17 1951.94 — .110 9.088 17 19 53.23 31 56 3.85 + 90.90 . . . . 55 99 39.31 39 Venus . . 8.L. 17 93 5.46 + .043 9.087 17 93 7.59 344 19 18.48 - 14.63 . . - 19.8 —17 44 58.61 40 m Opbiucbl . . 17 97 57.09 .196 9.086 17 87 59.30 313 54 20.25 54.10 - • +12 40 19.49 41 21 ff' Scorpil . . . 155643.45 + .085 1.848 15 56 45.38 345 »7 98.85 13.79 —19.40 , —19 33 99.55 o. 41 « Scorpli . . . 16 90 13.43 — .049 1.844 16 20 15.33 3593931.73 - 6.59 . . . . 96 536.63 41 44 • Tri. Aim. . . • Opbiuchi . . 16 3353.40 —1.035 17 1 48.54 + .089 1.841 +1.838 16 33 53.90 17 1 48.44 35 17 33.78 349 6 C.45 + 36.18 - 16.59 - • • • 68 44 23.45 -15 39 3.49 • Tbe Initnimrnt was lifted and the azimuth and level screws c The circle wae 10 that a Trlansuli Auetralli muit pass within chanf ed after the obaerrattoni. 5" of the horizontal wire, but It could not be discerned until 1 I do not understand why, since the 9th, a Triinfuli Auitralii bas between C and D. not been earn until after It had passed the first wire. i The colllmatlnf screw was moved. AT SANTIAGO DH CHILE. 325 V - e 'S 1 11 Corrections for 1 <£ -0 i Ipparent Circle reading, Refrac- Nadir. to Observed £ Date. Object. •g-e S A. R. mean of four tion. 1 apparent £ S Eg'g observed. microscopes. a declination. E <5 IS 3 £ Inst. Clock. S d 11* S 85 0 M° 0 O 1851. b. m. 8. a. s. h. m. s. • / // / // H /; « / // 1 Jan. SI a Ara .... 17 20 15.88 -0.375 + 1.833 17 20 17.34 16 18 23.43 + 14.96 -12.40 . . —49 44 51.88 G. 9 Venus . . S.I,. 17 95 18.97 -f .041 1.832 17 25 20.84 344 23 54.43 — 14.30 - - —19.5 17 48 34.12 3 22 /}' Scorpii . . . 15 56 43.50 + .054 2.123 15 56 45.68 345 57 28.20 — 12.83 13.50 . 19 23 27.76 G. 4 a Scorpii . . . 16 20 13.27 — .040 2.135 16 20 15.35 352 39 34.00 — 6.61 . . . . 96 5 39.78 S a Tri. Aust. . . 16 32 53.59 —1.432 2.126 16 32 53.29 35 17 32.38 + 36.30 . . . 68 44 21.07 8 i) Ophiucbi . . 17 1 46.43 + .103 2.130 17 1 48.66 342 6 8.10 — 16.57 . . . . 15 32 2.93 7« a Are .... 17 20 15.99 — .415 9.132 17 20 17.71 16 18 23.33 + 15.01 . . 49 44 50.73 8 Venus . . 8.L. 17 97 37.94 + .073 2.133 17 27 40.15 344 36 43.40 — 14.28 19.9 17 52 23.31 9 93 a Scorpii . . . 16 20 13.16 — .041 2.296 16 20 15.41 353 39 34.58 - 6.59 15.98 26 5 37.90 G. 10 a Tri. Aust. . . 16 32 52.77 —1.775 2.300 16 32 53.30 35 17 33.70 + 36.23 . . 68 44 19.83 11 17 Ophiuchi . . 17 1 46.27 + .138 2.306 17 1 48.71 343 6 10.10 i— /16.52 . . 15 32 3.49 MI Venus . . 8.L. 17 30 3.21 + .099 2.312 17 30 5.62 3443041.08! 14.18 - - 18.9 17 56 17.91 13 M a Scorpii . . . 16 90 19.77 — .107 2.707 16 20 15.37 352 39 34.50 — 6.65 14.65 t m 26 5 39.09 G. M a Tri. Aust. . . 16 32 52.59 —1.910 2.710 16 32 53.39 35 17 34.30 '+ 36.55 . . . . 6844 20.19 15 ij Ophiuchi . . 17 1 45.86 + .078 2.718 17 1 48.66 342 6 7.30 — 16.88 . . . . 15 33 1.86 ie a Aros .... 17 20 15.67 — .709 2.722 17 20 17.68 16 18 21.98 + 15.11 . . , . —49 44 48.33 17 a Ophiuchi . . 17 27 56.33 — .525 2.724 17 27 59.53 313 54 25.15 — 53.82 . . +12 40 17.23 1- Venus . . 8.L. 17 32 34.08 + .038 2.736 17 32 36.84 344 34 47.43 14.25 - - 18.8 —18 0 25.82 19 95 a Scorpii . . . 16 20 12.54 - .140 3.006 16 20 15.41 353 39 35.03 — 6.69 15.33 , . 26 5 38.90 0. 90 a Tri. Anst. . . 16 32 53.50 -1.978 3.009 16 32 53.53 35 17 32.98 + 36.78 . . . . 68 44 30.32 91 ij Ophincbi . . 17 1 45.58 -f .049 3.015 17 1 48.62 342 6 10.73 — 16.79 , . . 15 33 4.50 99 a Are .... 17 20 15.47 — .753 3.019 17 20 17.74 16 18 20.45 + 15.21 . . . . —49 44 46.23 33 a Ophiucbi . . 17 27 55.97 -f- .504 3.020 17 27 59.49 313 54 24.80 — 53.95 , . . . +12 40 18.59 94 Venus . . 8.L. 17 35 10.61 + .009 3.023 17 35 13.73 344 39 0.50 14.27 18.3 —18 4 56.79 95 98 a Scorpii . . . 16 20 12.39 — .107 3.213 16 20 15.50 352 39 32.90 — 6.71 13.15 t t 98 5 38.93 G. 96 a Tri. Aust. . . 16 32 52.34 -1.910 3.213 16 33 53.64 35 17 30.45 i+ 36.87 , . . . 68 44 21.08 97 0 fate .... 17 12 51.16 .841 3.217 17 19 53.54 98 a Are .... 17 SO 15.17 - .622 3.217 17 20 17.76 16 18 19.40 j+ 15.24 . , . , —49 44 48.38 99 a Ophiuchi . . 17 97 55.94 + .582 3.218 17 27 59.74 313 54 22.38 — 54.08 . , . . +12 40 17.96 30 c Venus . . 8.L. 17 37 59.71 + .034 3.219 17 37 55.98 344 43 18.70 14.24 16.0 —18 9 0.20 31 97 a Scorpii . . . 16 20 12.37 — .019 3.210 16 20 15.56 352 39 37.60 — 6.74 15.43 t . 26 5 41.32 G. 39 a Tri. Aust. . . 16 32 52.23 —1.730 3.210 16 33 53.71 35 17 34.18 + 37.03 . . , . 68 44 21.67 33 i) Ophiuchi . . 17 1 45.33 + .158 3.211 17 1 48.70 343 6 10.40 — 16.92 . . . . 15 32 3.94 34 0 Arm .... 17 12 51.03 — .810 3.211 17 12 53.43 21 56 6.03 + 91.08 . . . . 55 22 37.57 35 a Are .... 17 20 15.30 - .590 3.212 17 20 17.92 364 Venus . . 8.L. 17 40 39.96 •f .115 3.213 17 40 43.29 344 47 42.73 - 14.99 17.7 18 13 21.27 37 98 a Scorpii . . . 16 90 12.19 — .047 3.293 16 20 15.44 352 39 35.95 — 8.73 14.43 26 5 40.68 G. 36 a Tri. Aust. . . 16 32 53.59 —2.222 3.293 16 33 53.66 35 17 34.30 + 36.97 . . 68 44 22.73 39 i) Ophiucbi . . 17 1 45.27 + .177 3.295 17 1 48.74 342 6 10.75 — 16.87 . . 15 32 5.34 40 0 Aim .... 17 19 51.11 —1.070 3.295 17 12 53.33 21 56 5.88 + 91.04 55 32 38.38 41 aArn .... 17 20 15.22 — .685 3.295 17 20 17.83 16 18 23.38 + 15.97 . . 49 44 50.11 41 « Venus . . 8.L. 17 43 33.26 + .191 3.297 17 43 35.88 344 52 6.05 — 14.13 • • —17.5 18 17 45.88 «/ Feb. 3 a Scorpii . . . 16 20 13.87 — .049 2.060 16 20 15.68 353 39 31.40 — 6.74 —10.70 98 5 39.85 G. 44 a Tri. Aust. . . 16 32 53.90 —1.834 2.057 16 32 54.12 35 17 30.68 + 37.02 . . . . 68 44 22.89 45 ij Ophiuchi . . . 17 1 46.74 +0.135 + 2.052 17 1 48.93 343 6 6.85 — 16.90 • • —15 32 5.14 a Declination of a Arn i« not considered good. e The planet and stars were very unsteady. A workman being t Declination of Venus observed through cirri, and deemed un- engaged breaking out stone on the eastern side of "Santa Lu- certain. cia," every blow of his iron maul disturbed the mercury, c The planet very unsteady. making measures for the nadir very difficult. i The planet extremely unsteady. / Declination of Venus observed through cirri. 32fi MERIDIAN CIBCLE OBSERVATIONS, 1850-51. i II Correction, for i ; "* 3 Apparent Circle rritdlni , Refrac- Nadir. s Observed '. !> M Object. 11 : A. B. ! moan of four lion. £ appjri nt j obaerved. tuicroacopoa. s declination. te " - z IBM. Clock. I K |fs 0 i 1851. h. m. a. fc a. h. m. a. • / n / H H „ • n ii F.k. t ffAm . . . . 17 13 59.48 —0.775 +9.049 17 19 53.75 91 56 3.95 + 91.07 -10.70 . . -55 99 39.51 0. 11'lllllllCIII. . . 17 97 57.91 + .578 9.048 17 97 59.84 31354 94.58 — 54.30 . . . . + 19 40 14.53 Venu« . . 8.L. 18 9 99.88 + .089 9.040 18 9 95.00 345 17 90.78 13.74 - - -15.9 -18 43 6.33 S « Scnrpii . . . 1690 14.11 — .141 1.785 16 90 15.75 1 • • •.•:.:- - 6.74 +0.38 . , 96 541.81 G. • Tn. Aunt. . . 16 3354.G9 —9.113 1.783 16 32 51.36 35 17 19.48 + 36.99 . . . . 68 44 99.74 * Ophiucbi . . . 17 1 47.17 + .069 1.778 17 1 49.01 342 5 56.33 — 16.8* . , . . 15 39 5.71 lAre . . . . 17 19 53.10 —1.059 1.776 17 19 53.89 91 55 53.55 + 91.05 . . . 55 23 39.87 • Ara> .... 17 90 17.14 — .800 1.775 1790 18.11 16 18 9.50 + 15.99 . . . . 49 44 51.06 Venua . . 8.L. 18 8 13.13 + .001 1.768 18 9 13.90 345 24 35.50 — 13.61 • - 15.6 18 50 33.56 »• 6 • ScorpU . . . 16 90 14.24 — .173 1.718 16 20 15.78 352 3992.60 — 6.67 -1.48 ( t 96 5 40.34 G. 11 • Tri. Aunt. . . 16 39 54.77 —8.180 1.718 16 33 54.31 35 17 90.90 + 36.63 . . . . 68 44 29.94 U * Onhiuebi . . . 17 1 47.18 + .039 1.717 17 1 48.93 343 6 58.63 — 16.73 , . . . 15 33 6.31 U /3 Aral .... 17 19 53.10 —1.101 1.717 17 1253.71 21 55 53.05 + 90.85 . . . . 55 99 38.31 M • Are . . 17 tt 17.27 — .844 1.717 17 90 18.14 16 18 9.98 + 15.15 . . . . —49 41 48.84 15 « Ophluchi . . . 17 37 57.69 + .598 1.716 17 97 59.93 313 54 15.95 - 53.74 . . . . +19 40 14.08 U Venui . . 8.L. 18 19 41.88 — .030 1.716 18 19 43.57 34598 1.45 13.49 • - 15.4 -18 53 57.04 m 7 • Bcorpli . . . 16 90 14.31 .167 1.806 16 20 15.95 353 39 94.08 — 6.70 S.35 t ( -26 5 40.99 G. u a Tri. Ami. . . 16 39 55.10 —9.403 1.806 16 39 54.50 35 17 99.68 + 36.77 . . . . 68 44 92.99 u » Ophinchi . . . 17 1 47.33 + .069 1.806 17 1 49.90 349 6 0.08 — 16.40 . . , . 15 39 7.99 M 0 Are ... 17 19 53.31 -1.900 1.806 17 12 53.92 91 55 53.68 + 90.99 . . . . 559938.14 91 » Arm .... 17 90 17.51 .913 1.806 17 90 18.40 16 18 9.40 + 15.90 . . . . 49 44 48.14 « Veaaa . . 8X. 18 16 15.98 .010 1.806 18 16 16.99 345 31 17.00 - 13.49 15.9 18 57 11.99 93e 10 aScorpli . . . 16 90 14.86 .189 1.448 16 90 16.13 353 3993.60 - 6.75 —1.68 96 541.06 G. M « Tri. Auit. . . 16 39 55.86 —9.431 1.446 16 33 54.68 35 17 19.88 + 37.07 . . . . 68 44 91.16 95 • Ophiuchi . . . 17 1 47.87 + .049 1.443 17 1 49.36 349 5 59.25 — 16.93 . . . . 15 39 6.53 M 0 An .... 17 19 54.10 —1.991 1.440 17 19 54.39 91 55 53.20 + 21.10 . . . . 55 99 38.51 -• aAre .... 17 90 18.01 .939 1.439 17 90 18.59 16 18 9.15 + 15.33 . . . . 49 44 48.69 •_'- Venu . . 8.L. 18 97 14.34 - .095 1.438 18 97 15.75 345 39 94.78 — 13.40 . . -14.5 —19 591.09 » « Lyre .... 18 31 49.80 +1.944 +1.430 18 31 59.47 987 57 34.95 -9 39.81 • • • • +38 38 40.65 • ff Aim U full a half magnitude brighter than a. c 0 Are ii unquestionably a half magnitude brighter than a. t a Arc u certainly not «o bright m ft. After the obicmuioni the in.uuniml wu lifted, and the pirota cleaned with black Irad. INFERIOR CONJUNCTION OF VENUS, 1852. MERIDIAN CIRCLE OBSERVATIONS. s /. (B Corrections for S 5 E H Apparent Circle reading, Refrac- Nadir. S Observed £ Date. Object. — -^ • A. R. mean of four tion. o apparent C > "-5 observed. microscopes. c declination. > * |f* lust. Clock. / i I « o "° o ° 1859. h. m. s. , m. >. h. m. s. « i n i ii it a • i n 1« May 30 t Canis Maj. . . . 6 5339.66 +0.185 — 0 42.475 6 59 47.37 355 19 51.7 — 0 4.28 +91.9 . . —28 46 34.51 O. 9 a* Geminorum . . . 7 25 50.71 — .625 42.474 7 95 7.61 294 22 37.7 I 54.66 . . . . +32 12 29.87 3 0 Geminorum . . . 7 36 57.09 .496 43.473 7 36 14.12 298 19 9.3 1 37.06 . . . . 28 22 47.67 4 Venus . . . S.L. 7 43 23.10 — .511 49.473 7 42 40.12 30227 35.1 1 21.93 —14.6 +94 7 14.34 5 15 Argus 8 1 56.01 + .114 42.471 8 1 13.05 350 26 24.9 8.83 —23 53 3.16 II 31 a Canis Min. . . . 7 33 14.36 - .138 41.833 7 31 32.39 320 58 1.4 43.51 19.4 + 5 35 56.83 G. 7 0 Geminorum . . . 7 36 56.90 .375 41.833 7 36 13.99 398 19 7.3 1 39.69 . . 98 29 47.10 8 Venus . . . S.L. 7 46 37.14 — .398 41.833 7 45 54.91 309 39 10.4 1 93.51 . . -14.8 +23 55 42.62 i 9e June 9 t Canis Maj. . . . 6 53 29.97 + .300 42.954 6 52 47.32 355 19 49.3 4.38 99.1 . . —28 46 32.81 G. 10 a Canis Min. . . . 7 32 15.24 + .012 49.969 7 31 33.28 320 57 57.7 43.43 . . . . + 5 35 57.74 11 /? Geminorum . . . 7 36 57.35 — .284 42.973 7 36 14.09 298 13 5.4 1 39.51 . . 28 23 46.19 19 Venus . . . N.L. 7 59 53.17 — .163 49 978 7 59 10.03 | 303 2 21.8 1 93.13 . . +15.2 +23 31 57.14 13 15 Argus 8 1 56.33 4- .246 — • 49.989 8 1 13.59 350 26 23.3 9.03 —23 53 1.26 144 3 i Canis Maj. . . . 6 5330.64 .313 43.557 6 59 47.40 355 19 50.6 4.39 99.4 —28 46 34.57 G. 15 a Canis Min. . . . 7 32 15.74 + .019 43.573 7 31 33.19 320 57 54.3 49.83 . . + 5 36 0.34 It />' Geminorum . . . 7 36 57.83 — .906 43.576 7 36 14.05 998 12 1.8 1 38.90 . . . . 28 22 48.11 17 Venus . . . S.L. 7 55 54.07 ,— .158 43.583 7 55 10.33 303 15 10.3 1 90.28 . . —15.4 +23 19 37.09 18 8 1 56.87 -1- -322 43.586 8 1 13.64 350 96 21.4 8.90 —23 53 0.66 19 t 13 a Canis Maj. . . . 6 3927.37 .117 50.840 6 38 36.65 343 4 52.2 16.48 5.3 16 31 6.91 G. 90 < Canis Maj. . . . 6 53 38.23 .089 50.859 6 59 47.46 35590 8.1 4.49 . . . —28 46 34.87 91 a* Geminorum . . . 7 25 58.69 .918 50.898 7 25 8.01 294 22 59.1 1 58.77 . . . . +32 12 28.48 • a Canis Min. . . . 7 32 93.19 .185 50.906 7 31 32.47 390 58 16.4 43.87 . . 5 35 56.28 93 ,i Geminorum . . . 7 37 4.»9 .909 50.911 7 36 14.39 298 12 23.4 1 39.75 . . . . +28 82 45.16 94 15 Argus 8 9 4.54 .118 50.944 8 1 13.71 350 26 39.7 9.09 —23 53 1.80 95 Venus ... N.L 8 19 9.88 .909 50.964 8 18 13.13 305 14 32.9 1 16.18 +17.8 +31 19 54.29 W/ 13 c Canis Maj. . . . 6 53 40.01 .195 52.655 6 52 47.48 355 20 4.6 4.59 6.1 —28 46 32.00 G. 97 a* Geminonim . . . 7 96 0.77 .237 52.695 7 25 8.30 294 99 56.7 1 57.07 . . . . +32 12 28.38 98 a Canis Min. . . . 7 32 25.04 .200 59.700 7 31 32.54 330 58 13.9 43.93 . . . . + 5 35 58.34 99 8 9 (.26 135 52.739 8 1 13.66 350 26 36.4 9.01 —23 52 59.38 30 Venus . . . S.L. 8 21 8.44 .918 0 52.761 8 20 15.90 305 29 4.0 1 14.97 • • —18.1 +21 5 57.08 31 1 99 a Canis Maj. . . . 6 39 44.50 .099 1 7.804 6 38 36.79 343 4 44.3 16.91 +10.2 , . —16 31 4.18 a. 39 c Canis Maj. . . . 6 53 55.17 +0.076 — 1 7.890 6 52 47.43 355 19 59.1 — 0 4.36 ' • • • • —28 46 30.83 a Objects quite tremulous. / In the recorded observation of t Cania Majoris, micrometers i Observation of the diameter of Venus doubtful. B and C were no doubt read 10" too little. Observations of c Venus excessively unsteady when measuring her diameter. a* Geminorum but little better than guessing. The planet t Very unfavorable observation of the diameter of the planet. very tremulous. e Since the observations on the 3d the instrument has been entirely g Observations all very fair. cleaned, and a new vertical wire inserted in place of A. Very indifferent observation of a* Geminorum. S28 MERIDIAN CIRCLE OBSERVATIONS, 1852, 1 i DM*. Object. 1 Correction* for A MM rent Circle readi n«, mnanoribur microscopes. Refrac- tion. Nadir. 1 i Observed declination. | Inn. Clock. A. R. obaerved. i a s 4 •• 6 7 « • 10 11 IS IU 14 15 16 17 18 c It M • a mi u •_'-. as 17 • 89 • 31 • 33 :•:, : 36 17 •-• • 48 41 4t «< 44 43 :- . JIM » S3 84 SB 89 » July 1 a • • CaniaMln. . . . IS Argus b. m. a. 7 3339.87 8 881.50 83432.30 8 14 14.34 6 39 45.80 6 5356.79 7 3341.76 73783.43 8 933.00 8 35 81.68 8 14 15.96 8 81 97.67 6 38 46.84 6 53 57.97 7 37 84.30 8 3 83.89 636 1.53 6 3838.54 7 32 34.36 8 36 58.91 8 14 8.34 8 91 80.09 733 39.36 7 37 13.78 8 8 13.51 8 36 48.74 9 14 6.97 8 il 18.06 7 37 18.03 8 8 11.84 B 37 99.71 8 14 4.51 9 91 16.19 73398.39 8 36 0.94 8 14 9.74 8 81 14.33 65336.50 8 8 8.37 8 W 88.38 8 13 55.98 8 81 6.87 7 39 19.43 8 8 0.83 8 31 11.91 a. +0.149 .085 + .159 — .088 -f- .113 .046 .917 .333 .074 + .978 ^335 + .153 + .033 — .045 — .013 + .836 .088 .185 + .868 — .301 + .118 .155 ~ .- '' — .010 + .933 — .388 + .087 + .930 — .198 + .158 - .578 — .013 + .033 + .151 t — .037 + .059 .101 + .410 — .354 + .838 .351 .137 +0.491 m. a. -1 7.868 1 7.894 1 7.898 1 7.873 I 9.989 1 9.998 1 9.337 1 8.341 1 8.397 1 8.400 1 9.440 1 9.447 1 10.390 1 10.368 1 10.308 1 10.364 1 10.919 .1 1.891 1 1.916 1 1.837 1 1.77S 1 1.765 59.959 59.954 59.930 59.873 59.831 59.813 58.024 57.990 57.944 57.894 57.885 56.191 56.039 55.990 55.981 49.010 48.930 48.893 48.845 48.836 47.861 47.938 — 47.196 h. m. a. 7 31 39.85 8 1 13.68 8 3384.53 9 13 6.35 6 38 36.73 6 53 47.54 7 31 33.64 7 36 14.49 8 1 13.71 8 31 13.56 9 13 6.99 8 80 18.38 6 38 3S.48 6 53 47.56 7 36 14.99 8 1 13.61 8 34 51.54 6 38 36.64 7 31 33.53 835 56.65 9 13 6.96 8 90 18.44 7 31 33.46 7 36 14.06 8 1 13.58 8 35 49.10 9 13 6.06 9 90 18.33 7 38 14.33 8 1 13.73 8 36 31.93 9 13 6.04 9 90 18.89 7 31 33.30 8 35 5.05 9 13 6.13 9 80 18.31 6 53 47.55 8 1 13.54 8 31 39.98 9 13 6.09 9 90 18.37 7 31 3J.53 8 1 13.74 8 30 94.47 • / n 39058 8.8 350 86 30.8 307 33 35.0 85 18 37.4 343 4 43.9 355 90 0.3 330 58 9.8 896 19 16.8 350 86 89.7 307 47 45.9 85 18 38.9 334 35 8.8 343 4 46.2 35580 1.9 888 18 18.3 35086 34.3 308 0 89.0 343 450.1 320 58 14.4 308 51 51.4 85 13 39.3 334 35 14.9 380 58 17.3 898 18 85.8 3509636.8 309 4 50.1 95 19 43.1 334 35 14.4 993 13 97.5 35038 35.1 309 16 0.9 85 13 44.8 334 35 13.6 330 56 18.8 309 37 39.5 85 13 47.6 334 35 15.3 35580 5.6 310 10 33.8 85 13 38.4 334 35 13.5 330 58 15.8 350 96 34.9 310 90 18.3 / // -4)43.06 8.85 — 1 8.88 + 94.94 - 16.04 4.31 49.64 1 37.67 8.84 — 1 7.49 + 94.69 — 84.91 16.07 4.33 1 37.87 8.85 1 7.13 16.80 43.34 -1 5.93 + 85.06 - 85.87 49.87 1 38.36 8.91 — 1 4.89 + 84.80 - 95.03 1 36.70 8.78 -1 3.70 + 24.57 - 84.80 -!M - — 1 3.73 + 94.76 — 94.97 4.45 -1 4.53 + 85.64 44.04 9.14 — 1 3.70 9 +10.8 9.8 5.8 5.4 0.7 • • + 0.3 - 1.8 + 8.5 +5.5 • +80.9 -81.3 +M.6 +83.0 -83.4 +83.7 94.1 85.5 +85.8 • ; // + 5 35 57.17 —S3 53 57.94 +19 0 36.89 -583936.43 16 31 3.55 -28 46 31.58 + 5 35 57.15 +28 89 45.78 -23 59 56.55 +16 47 7.80 -563938.88 — 81 18.98 -16 31 1.98 -984629.36 +98 83 47.78 —23 53 57.34 +18 33 44.74 —16 31 5.18 + 5 35 57.65 +17 43 80.94 -58 38 35.65 — 8 1 90.83 + 5 35 59. C8 +28 89 46.47 -23 S3 54.48 +17 30 11.53 —58 39 34.49 — 8 1 15.97 +88 89 43.01 —23 53 53.51 +17 18 13.56 -58 3935.56 — 81 14.99 + 5 3:> 58.38 +17 6 36.04 -58 39 36.45 8 1 14.48 -28 46 29.54 +16 33 36.84 —58 39 39.43 - 8 1 15.01 + 5 35 56.85 -23 S3 56.45 +16 13 48.31 O. O. a. a. G. G. o. a. a. VenM . . . N.L. • CanisMaj. . . . < Canto Maj. . . . • CanisMin. . . . ff Geminorum . . . IS Arjrm Venua . . . B.L. • CaniiMij. . . . t Canit Maj. . . . 0 Geminorum . . . IS Argui Venna . . . N.L. • OaniaMaj. . . . • CaniaMln. . . . Venui . . . N.L. • CaniiMin. . . . i> Geminorum . . . Venu. . . . B.L. H (jVminonim . . . 15 ArfUi Venvi . . . N.L. • CaniaMln. . . . Venna . . . N.L. a Hydra; (CanlaMaj. . . . Venui . . . N.L. • CaniaMln. . . . ISArfua Venui . . . N.L. • Objects M sharp and steady as on the ten nights. t Tolerable obMrralioiu. c Sun M«n Ihroofti cirri. Micrometer B chanf ed after obaerva- UOM. There wai quite • aharp earthquake between 1 and 2 A. ». tOknmtloni Uirou|h cirri, ft Gemlnornm rjlrrmely dim and doubtful. Planet eicexiTely unsteady. < Obaerrationi through clouds. / Cumuli constantly passing. Planet quitn unsteady. A aevere earthquake occurred at 7*. 37m. ; and the adjustment! of the Instrument, determined after the earthquake, are not applica- ble to the obaenratlon of t Can Is Major! <. t Stars blurred, and unsteady throughout. AT SANTIAGO DE CHILE. 329 No. for reference. Date. Object. Observed transit rrilui-edtomean of wires. Corrections for Apparent A. R. obseived. Circle reading, mean of four microscopes. Refrac- tion. Nadir. Corr'n for semid. Observed apparent declination. Observer. In-t. Clock. 1 3 a 10» 11 13 13 14 IS 16 c 17 18 II H 21 • •M H • • 97 • • 30 31 33 33 M< 35 M 37/ 38 • 40 41 •| 43 44 1853. July 6 7 8 9 10 13 18 96 89 i Argus b. m. s. 9 13 53.41! 9 21 5.26 6 39 23 39 6 53 33.36 7 33 17.81 8 1 59.17 8 29 45 21 9 13 52.10 9 31 3.81 6 53 31.49 7 33 16.06 8 1 57.26 8 28 9.84 9 13 50.17 9 31 1.86 6 39 19.01 6 53 30.00 7 33 14.71 8 1 55 93 8 36 35.88 9 13 48.49 9 31 0.96 6 39 17.54 6 53 38.51 7 33 13.17 8 1 54.40 8 34 33.68 9 13 47.34 9 30 58.97 6 39 13.71 6 53 33.66 7 33 8.31 8 1 49.59 8 18 13.34 9 20 54.04 7 33 1.69 8 3 46.68 9 30 47.40 6 53 7.80 7 31 52.50 7 42 44.68 8 1 33 65 7 31 49.43 7 36 19.80 s. -0.322 + .254 .173 .074 .333 .116 + .407 — .357 + .336 .518 .826 .561 .857 .074 .686 .631 .518 .828 .561 .860 .074 .686 .471 .348 .694 .400 + .766 — .187 + .549 .491 .371 .712 .404 .767 .S87 .473 .587 .506 .549 .634 .578 .535 .656 +0.696 9. — 47.149 47.142 45.825 45.810 45 772 45 742 45.714 45 670 45.663 44.405 44.365 44.334 44.308 44.360 44.253 42.877 43.860 42.819 42.786 42.759 43.707 42.699 41.383 41.367 41.333 41.190 41.164 41.110 41.102 36.449 36.433 36.391 36.358 36.341 36.372 39.663 29.638 29.577 30.505 90.477 30.474 30.456 17.258 — 17.955 h. m. s. 9 13 5.99 9 20 18.37 6 3R 36.74 6 52 47.52 7 31 32.37 8 1 13.54 8 28 59.90 9 13 6.07 9 20 18.38 6 53 47.60 7 31 32.52 8 1 13.49 8 27 26.39 9 13 5.98 9 30 18.29 6 38 36.75 6 52 47.66 7 31 32.72 8 1 13.71 8 25 43.98 9 13 5.86 9 20 18.35 6 38 36.73 6 52 47.59 7 31 33.64 8 1 13.61 8 23 52.28 9 13 5.94 9 30 18.49 6 38 36.75 6 53 47.60 7 31 i-',63 8 1 1.1.57 8 17 30.67 9 20 18.36 7 31 32.50 8 3 17.53 9 30 18.33 6 52 47. 84 7 31 33.65 7 42 24.78 8 1 13.73 7 31 32.83 7 36 3.24 a l If 25 12 37.0 334 35 8.7 343 4 47.3 35520 1.5 320 58 13.7 350 26 34.3 310 29 40.8 25 12 38.1 334 35 10.1 355 19 50.3 320 58 5.5 350 26 33.5 310 38 24.2 25 12 24.8 334 34 59.3 343 4 31.9 355 19 46.4 320 58 0.4 35036 31.5 310 46 53.7 25 13 34.6 334 34 56.8 343 4 37.8 355 19 52.4 3SO 58 5.0 35026 24.1 310 54 56.3 25 1228.1. 334 34 59.4 343 4 34.0 355 19 50.4 320 £8 5.0 350 26 31.1 311 16 16.9 334 34.58.3 320 58 0.4 311 43 20.8 334 34 53.1 355 19 44.9 320 57 57.3 311 59 48.3 350 26 13.4 320 58 0.3 311 58 10.7 / ti + 25.48 — 35.71 16.43 4.42 43.55 9.07 — 1 2.9S -f 25.32 — 25.52 4 44 / 43.87 9.11 — 1 02.83 + 25.40 — 25.64 16.43 4.42 43.64 9.05 — 1 2.00 + 35.12 — 35.34 16.15 4.34 43.74 8.87 — 1 0.60 -f. 24 71 - 94.95 16.47 4.43 43.87 9.11 1 1.35 25.53 43.79 1 0.53 35.68 4.66 43.95 1 0.09 9.13 43.96 — 1 0.22 H -f- 5.5 3.4 19.9 31.6 14.3 16.5 18.7 19.6 +17.7 it +26.1 36.4 26.6 26.9 97.6 +38.4 -27.8 +97.3 ° i ii -58 39 33.87 8 1 14.38 16 31 0.16 -28 46 26.37 + 5 36 0.56 -23 52 54.52 +16 4 26.73 -58 39 32.71 — 8 1 13.87 —28 46 31.65 + 5 35 52.58 —23 53 0.18 + 15 55 26.44 -58 39 33.99 8 1 19.45 16 31 9.96 —28 46 29.47 + 5 35 55.75 -23 52 59 94 + 15 46 55.21 -58 39 37.21 8 1 18.95 16 31 1.84 —28 46 28.25 + 5 35 57.55 —23 52 £5.42 +15 38 57.21 -58 30 33.00 8 1 14.64 16 30 59.92 -28 46 28.36 + 5 35 56.48 -23 52 54.38 +15 17 34.46 — 8 1 15.06 + 5 35 58.80 +14 51 26.73 — 8 I 12.01 —28 46 85.73 + 5 36 1.26 +14 34 54.10 -23 53 48.77 + 5 36 0.17 f 14 35 38 63 G. O. r<5- <;. G. G. G. G. a Canis Maj. . . . £ Canis Maj. . . . a Canis Min. . . . Venus . . . N.L. i Canis Maj. . . . « Canis Min. . . . Venus . . . N.L. < Hydra a Canis Maj. . . . t Canis Maj. . . . a Canis Min. . . . Venm . . . N.L. a Hydra .... « Canis Mij. . . . c Canis Maj. . . . a Canis Min. . . . Venus . . . N.L. a Hydro! • Canis Maj. . . . t Canii Maj. . . a Canis Min. . . . Venm . . . N.I.. * Hydra . . . a Cants Min. . . . Venus . . . N.L. * Hydra . . . < Canis Maj. . . . « Canis Min. . . . Venus . . . 8.L. a Canto Min. . . . Venus . . . N.L. a Stan blurred and unsteady. After observations, lifted the circle, and cleaned pivots and friction-rollers. 6 Venus extremely unsteady ; stars sometimes good. Micrometers D and C were changed before observations, c Venus very unsteady and not satisfactory ; stars sometimes good. i Except of a Canis Minoris, tbe observations generally were satis- factory. c The southern cusp of Venus was eo indistinct that the measure of her diameter is doubtful. /Venus quite steady. • 15 Argus not visible at times, and the observation not to be relied on. 42 330 MERIDIAN (HULK OBSERVATIONS, 1 : 0*Ject. el - c Correction, for Apparent Circle reading, A. R. mean of lour Refrac- tion. Nadir. Observed fnat. Clock. observed. mtcro*cope*. V i §£"5 •! 2 1859. h. m. .. a. a. h. m. a. • * a i ii • // • / n i m 8 1 30.66 +0.380 — 17.935 8 1 13.81 150 96 14.9 — 9.13 . —S3 53 48.66 G. t • Hydm 9 90 34.91 1 .596 17.176 9 90 18.96 334 34 53.4 95.63 81 11.36 i 3* «C.ni.Maj. . . . 6 38 59.71 .460 16.097 6 3837.15 343 496.9 16.44 +91.0 16 30 57.35 0. i « Cani. Maj. . . . 653 3.54 .347 16.015 6 59 47.87 355 19 41.3 4.43 . . . . —98 46 33.77 5 Venu* . . . N.L. 7 34 96.87 .7U 15.981 7 34 11.60 311 56 53.3 59.99 . . +97.0 +14 36 53.73 ,; 15 Arftu .... 8 1 39.47 .395 15.958 8 1 13.91 350 96 13.7 9.08 . . . . —93 S3 51.51 31 « Cani. Maj. . . . 6 3851.76 .446 15.003 6 38 37.90 343 4 99.1 16.40 18.7 . . —16 30 57.99 a. « < Cani. Maj. . . . 6 S3 3.64 .333 14.993 6 S3 47.98 355 19 44.1 4.43 . . —98 46 94.37 3 Venu. . . . N.L. 7 33 43.93 .703 14.961 7 39 97.97 311 55 13.1 59.91 . . 96.8 +14 38 35.43 iJc Aug. 4 • Cani* Maj. . . . 6 38 47.13 .575 10.514 ; 6 38 37.19 313 499.5 16.51 19.8 . . —16 30 5B.68 G. It < Can). Maj. . . . 6 59 58.10 .471 10.503 65948.07 3551941.0 4.44 . . . . -98 46 33.95 19 Venu. . . . N.L. 7 97 15.66 .809 10.477 7 97 5.99 311 46 6.8 1 0.40 . . 35.6 +14 47 43.31 i -1 0 Qeininorum . . . 7 36 34.40 .925 10.469 7 36 14.86 998 13 13.3 1 40.90 . . +98 93 43.21 14 15 Arftu 8 1 93.64 .314 10.450 ft 1 13 70 350 96 13.5 9.07 . . —93 S3 50.19 Ui 5 « Cani. Maj. . . . 6 53 57.01 .369 9.386 6 S3 48.09 355 19 43.4 4.39 16.9 . . —98 46 90.80 a. 16 Venn. . . . N.L. 7 96 18.50 .639 9.257 7 96 9.88 311 43 16.4 1 0.30 . . 95.3 +14 SO 35.71 17 0 Geminorum . . . 7 36 23.33 .734 9.249 7 36 14.89 398 13 13.7 1 39.69 . . . . +9893 44.13 18 13 Arfui . ... 8 1 93.80 .381 9.998 8 1 13.95 350 96 15.0 8.99 . . . . —93 59 48.80 It* 6 c Canto Maj. . . . 6 5355.57 .379 8.005 6 53 47.98 355 19 41.9 4.39 17.0 . . —28 46 20.40 C,. M Venu. . . . N.L. 7 95 30.94 .782 7.975 7 95 93.75 311 40 14.6 1 0.09 . . 95.0 +14 S3 37.60 • • Cani. Min. . . . 7 31 43.30 .799 7.969 7 31 33.06 320 57 59.9 43.36 . . 5 36 0.57 a IS Arfui 8 1 91.46 .431 7.943 8 1 13.95 •/ 7 Venu. . . . N.L. 7 94 53.97 .759 6.488 7 94 47.53 311 37 5.4 59.83 15.7 94.7 14 56 48.13 G. M • Cani. Min. . . . 7 31 38.70 jm 6.481 7 31 33.91 330 58 9.0 43.09 . . . . + 5 3559.43 H 8 1 19.93 .383 6.499 8 1 13.88 350 36 17.0 8.95 - • • • —S3 53 49.64 Ml 8 Venu* . . . N.L. -. K • • .669 4.689 794 91.29 311 33 44.9 59.71 13.9 94.4 +15 0 10.69 a. 17 a Cani. Min. . . . 7 31 36.97 .581 4.679 i 7 31 39 88 390 58 9.8 43.97 . . . 636 0.38 98 0 Geminorum . . . 7 36 18.57 .830 4 667 7 36 14.73 998 13 15.7 1 38.44 . . . . +9899 49.95 ft 15 Arftu . . 8 1 18.33 .959 4.636 8 1 l:t ".-> 350 96 17.4 8.91 —93 53 48.38 10* 10 Venui . . . N.L. 7 33 59.04 .749 1.195 7 33 58.59 311 96 48.3 1 1.94 15.1 93.7 +15 7 8.95 G. 31 • Cani. Min. . . . 7 31 33.41 .683 1.185 7 31 33.91 330 58 1.9 43.77 . . . . 5 36 1.58 m 0 Geminorum . . . 7 36 15.10 .891 — 1.180 7 36 14.81 998 19 14.5 1 40.93 . . +38 33 44.73 ai 19 t Cani. Maj. . . . 65946.19 .366 + 1.656 6 59 48.21 355 19 49.6 4.48 17.7 . . -8846 91.71 a. M Venu. . . . N.L. 7 94 19.46 .890 1.685 7 94 14.96 311 19 31.3 1 9.06 . . 23.8 +15 14 94.37 IS « Cani* Mm. . . . 7 31 30.53 .759 1.693 7 31 33.96 320 58 1.4 44.97 . . , . 5 35 59.38 38 0 Geminorum . . . 7 36 19.33 .969 1.696 7 36 14.89 998 13 17.0 1 41.97 . . . . +9699 40.68 27 IS Arpu 8 1 11.90 .435 1.730 8 1 14. OS 350 96 19.9 9.17 —S3 59 46.69 m 11 Venu. . . N.L. 794 33.39 .8,1 9.997 794 37.18 311 1553.7 1 1.07 14.0 99.4 +15 18 5.08 a. a • Cani* Min. . . . 7 31 99.34 .759 3.009 7 31 33.09 320 58 0.7 43.46 r f . 636 9.87 4* 0 Geminorum . . . 736 11.11 aaj 3.007 7 36 15.09 996 13 16.0 1 39.51 • • • • 989943.63 411 14 Vena. . . . N.L. 7 95 3.96 .759 4.443 7 95 8.46 311 19 17.7 1 0.37 + 19.4 +99.0 IS 91 43.38 <;. JJj • Canto Min. . . . 7 31 97.87 .671 4.449 7 31 33.99 39058 9.8 49.89 f 5 36 1.80 « /J Gemlnonim . . . 7 36 9.SI +0.991 + 4.455 7 36 14.89 998 19 17 5 -1 38.96 ' ' • • +98 33 49.47 • Tranm of IS Arpu obaerved throiifli cloud.. I All food otoemtloni. • Object* eilremely tremuloui. A The denie fog covering the city alnce yenerday morning broke < Object* tolerably «h«rp and Meady. away suddenly at 7* •idorcnl lime. Object* in till* day'l obeer- t All tolerably food obMrraUoM. vationi blurred and very unsteady. • OtoenraUoM tkroufh thin cirri, but food, null 1* tlic rutp. of i Object! trrmulou*. Venui were not .harp enough for accurate meuurcment of * Object, quite iteady. the diamtter. 1 Cirri rendered cunpi dim ; objtcu not .toady. / Otjeeta rather treraulotu tod uruteady. AT SANTIAGO DE CHILE. 331 i < Corrections for ] • ft _ Apparent Circle reading. Refrac- Nadir. £ Observed IE Date. Object. A. R. mean of four tion. g apparent C t > £ -— observed. microscopes. declination. f £ £ 3 JC Inst. Clock. f V o tit S s C . O O 1853. h. m. s. 8. s. h. m. s. • i n / it „ „ ° i n i« Aug, 16 Venus . . . N.L. 7 26 29.43 +0.779 + 7.889 7 26 38.08 311 5 12.6 -1 1.03 +12.8 +21.4 +15 28 48.34 G. 9 < Canis Min. . . T 7 31 24.53 .666 7.874 7 31 33.07 320 58 1.7 - 43.14 + 5 36 2.75 34 21 6 30 21.03 .641 15.241 6 20 39.91 19 9 44.3 + 19.36 15.9 —52 36 45.45 G. 4 • Canis Maj. . . . 6 38 21.87 .560 15.257 ; 6 38 37.69 343 4 28.7 — 16.91 . . , . —16 30 53.58 5 Venus . . . N.L. 7 33 30.43 .931 15.303 7 32 46.68 310 49 6.9 1 3.75 - . . 19.8 +15 44 55.26 g 15 Argus • • • 8 058.36 -463 15.329 g 1 14.15 3tt Sfi 11 9 9.25 ' . . —23 53 44.44 ! 7« 23 • Canis Maj. . . . 6 3820.69 .467 16.461 6 38 37.62 343 4 27.9 16.61 14.3 16 30 51.48 G. 8 l Canis Maj. . . . 6 52 31.60 .313 16.477 6 52 48.39 355 19 40.0 4.46 .. . . . -28 46 15.73 9 Venus . . . N.L. 7 34 5.88 .825 16.516 7 34 23.22 310 46 22.0 1 2.61 . . 19.5 +15 47 40.92 10 1.5 Argus ..... 8 0 57.31 .378 + 16.537 8 1 14.22 350 26 12.9 9.07 —23 52 44.02 114 33 < Canis Maj. . . . 6 53 1.49 .262 — 13.344 6 52 48.41 355 19 41.6 4.46 14.4 -28 46 17.43 a. 19 • Cants Min. . . . 7 31 19.83 .693 + 13.590 7 31 33.11 320 58 2.6 44.07 . . . . + 5 36 1.18 13 Venus . . . N.L. 7 35 53.28 .794 + 13.590 7 36 6.38 310 43 52.0 1 3.04 19.3 +1550 11.55 14 f 98 • Canis Maj. . . . 6 38 37.46 .463 — 0.189 6 38 37.73 343 4 24.3 16.55 16.7 . . —16 30 50.34 G. 15 c Cams Maj. . . . 6 52 48.40 .328 0.180 6 52 48.55 355 19 37.3 4.45 . . . . —28 46 15.44 16 • Canis Min. . . . 7 31 32.79 .674 0.161 7 31 33.30 320 57 57.9 43.91 . . + 5 36 3.42 17 jffGeminorum . . . 7 36 14.57 .854 0.158 7 36 15.26 398 13 14.5 1 40.55 . . . . 28 22 43.46 18 Venus . . . N.L. 7 46 33.21 .734 0.153 7 46 33.79 310 34 48.3 1 3.00 . . 17.8 +15 59 14.31 19 15 Argus 8 1 14.01 .394 — 0.145 8 1 14.26 so/ 31 • Canis Maj. . . . 6 3834.17 .504 + 3.136 6 38 37.81 343 4 23.7 16.86- 17.4 -16 30 50.13 G. 91 « Canis Maj. . . . 65244.99 .438 3.151 6 52 48.57 355 19 37.4 4.53 . . . . -2846 16.17 99 _ a Canis Min. . . . 7 31 29.53 .693 3.183 7 31 33.40 320 57 59.3 44.64 . . + 5 36 2.05 93 /'GiMuiniirum . . . 7 36 11.26 .828 3.189 7 36 15.28 298 IS 18.8 1 42.03 . . . . 28 22 39.94 94 Venus . . . N.L. 7 53 40.70 .730 3.203 7 5344.63 310 32 55.8 1 4.11 . . 16.9 +16 1 8.13 .,- 8 1 10.73 .430 3.309 8 1 14.37 35096 9.0 9.26 -23 52 43.03 »« Sept. 1 ( Canu Maj. . . . 652 43.79 .424 4.453 6 53 48.67 355 19 34.9 4.52 18.3 -28 46 14.57 G. 97 • Canis Min. . . . 7 31 28.24 .801 4.486 7 31 33.53 320 57 57.0 44.50 . . + 5 36 3.31 98 /JGeminorum . . . 7 36 9.93 1.002 4.491 7 36 15.42 298 12 14.8 1 41.95 . . . . 28 22 42.96 99 Venus . . . N.L. 7 56 16.94 .867 4.508 7 56 23.31 310 32 58.9 1 3.79 . . 16.7 +16 1 4.00 30 15 Argus 8 1 9.40 .479 4.513 8 1 14.39 350 S« 8.1 9.33 —23 52 43.07 31k 9 • Canis Maj. . . . 6 38 31.69 .478 5.757 6 38 37.92 343 4 35.3 16.69 15.5 16 30 50.00 G. 39 ( Canis Maj. . . . 6 52 42.66 .335 5.772 g 52 48.77 355 19 37.8 4.49 . . . . —28 46 14.70 33 • Canis Min. . . . 7 31 36.99 .716 5.805 7 31 33.31 320 57 59.0 44.19 . . . . + 5 36 3.80 31 /?Geminorum . . . 7 36 8.69 .960 5.810 7 36 15.46 298 12 17.3 1 41.23 . . . . 28 22 42.64 35 Veaus . . . N.L. 7 5858.04 .813 5.838 7 59 4.68 310 33 33.8 1 3.47 • • 16.5 +16 0 41.78 3SI 3 t Canis Maj. . . . 65341.30 .327 7.019 6 53 48.64 355 19 40;6 4.45 13.5 . . -28 46 15.54 O. 37 • Canis Min. . . . 7 31 25.66 .725 7.058 7 31 33.44 320 58 1*6 43.93 + 5 36 2.94 38 /7Geminorum . . . 7 36 7.44 .956 7.063 7 36 15.46 298 13 19.0 1 40.67 . . . . 38 22 42.28 30 Venus . . . N.L. 8 1 43.90 .808 7.068 8 1 51.78 310 34 13.7 1 3.96 • • 16.3 +15 59 53.57 40k Sept. 6 t Canis Maj. . . . 6 5337.88 .385 10.466 6 5348.73 355 19 37.4 4.53 +16.4 . . —28 46 15.17 G. 41 a Canis Min. . . . 7 31 32.30 .770 10.500 7 31 33.57 320 57 58.8 44.59 . . . . + 5 36 3.50 43 0 Geminonun . . . 7 36 3.91 .984 10.506 7 36 15.40 298 12 17.6 1 43.18 . . 38 32 42.39 43 Venus . . . N.L. 8 10 38.38 +0.843 + 10.540 8 10 39.66 310 38 57.6 — 1 3.75 • • +15.7 +15 56 8.16 • Observations through cirri ; objects tolerably steady. f Bad images, though tolerably steady. t Objects very tremulous and unsteady. g Tolerably steady. c Objects excessively unsteady. A Comparatively quite steady. * t The clock having stopped at 7A., dismounted and cleaned it liter i Objects tolerably steady. observations. k Objects sharp, and planet comparatively steady. Aptrtura re- < Bad images, but tolerably steady. duced to two inches for planet. 8 12 MERIDIAN CIRCLE OBSERVATIONS, 1852. : v. ' Corrr •Uoiu for Apparent •irrlrmrilnf. i:. • :• Nadir. \ Obaemd z | Object. - test. Clock. /TR. nbMnred. mean of four microttopet. lion. & 1 apparent decimation. | .-.:. h. m. «. a. a. h. •». a. 911 / ii 0 " • i /• • fepc. 7 • CufeMaj. . . . C S9 38.43 +0.403 + 11.883 6 53 48.78 355 19 39.1 - 4.50 +15.9 -38 46 16.38 0. • CanuMin. . . . 1 31 90.83 .939 11.928 7 31 33.69 32058 0.8 44.94 . . . . + 5 36 1.61 0 Gemlnorum . . . 736 8.89 1.845 11.934 7 36 15.47 998 19 19.1 1 41.33 . . . . 988140.43 Venn. . . . N.L. 6 13 30.83 1.047 11.969 8 13 43.85 310 41 91.9 1 9.84 +15.5 + li 59 44.45 • e cCanUMaj. . . . 6 58 35.24 .359 13.31'J 6 53 48.91 3S5 19 39.9 4.45 +14.5 . . -38 46 15.84 G. • CanUMin. . . . 7 31 19.50 .898 13.348 7 31 33.75 330 57 59.7 43.81 . . . . + 5 36 3.78 ll Geminorum . . . 738 1.16 1.994 13.354 7 36 15.74 986 19 19.0 1 40.39 . . . . 9899 40.90 Vena* . . . N.L. 8 16 37.46 +1.019 + 13.394 8 16 51.87 310 44 9.8 — 1 9.34 • • +15.3 +15 49 56.85 a Object! tharp, but very trcmuloiu. Aperture for all, two inche>. HORIZONTAL AND VERTICAL DIAMETERS MARS AND VENUS, DIFFERENTIAL AND MERIDIAN OBSERVATIONS, AT SANTIAGO DE CHILE, COUP ARID WITH THE NAUTICAL ALMANAC. DIAMETERS OF MARS: 1849-50. Dai.-. Observed horizontal. N. A. horizontal. Observed — N. A. Obienred vertical. N. A. vertical. Observed — N. A. ver. Remarks. 1849. Dec. 10 // 17.08 // 17.10 n —0.04 15.88 // 15.40 // +0.48 Blazing and unsteady. 11 13.42 17.07 —3.65 20.07 15.36 4.71 Mars not very' stead) . 11 18.18 17.07 +1.09 16.86 15.36 1.50 Do. 11 18.27 15.36 S.91 Do. 12 24.73 17.04 7.69 19.86 15.33 4.54 Not favorable. 12 21.23 17.04 4.18 18.18 15.32 2.86 13 30.59 17.01 3.58 18.28 15.28 3.00 Pretty fair measures. 14 22.65 16.97 5.68 17.94 15.34 9.70 Not as good as yesterday. 15 18.64 16.94 . . 18.71 15.30 3.51 By no means satisfactory. 15 19.14 16.94 +2.20 18.91 15.20 3.71 IS 15.91 16.91 —1.00 17.99 15.17 2.89 Tolerably good, but occasional wave-like motion. 17 18.00 16.88 +1.12 15.83 15.13 0.69 Uniformly good measures. 18 19.19 16.85 9.34 16.44 15.10 1.34 Disc of planet badly defined. 90 20.12 16.83 3.29 16.76 15.03 1.73 Badly defined and wavy a part of the time. 90 90.34 16.83 +3.51 16.04 15.03 1.01 SI 18.15 16.80 —0.65 19.33 15.08 4.22 Both objects seen through haze. • 93.78 16.73 +6.05 18.16 14.93 3. S3 Blazing and unsteady. 33 19.79 IS. 65 3.14 17.21 14.86 2.35 Very flaring, with irregular motion. 84 17. It 16.57 0.59 17.86 14.80 3.06 Generally very good measures. 25 17.29 16.50 0.79 17.03 14.73 2.99 Tolerably fair night. • 18.82 16.44 9.38 17.76 14.66 3.10 Better than usual. 37 17.69 16.39 1.30 17.78 14.60 3.18 Blazing and unsteady. 30 91.91 16.20 5.71 17.48 14.40 3.08 Quite a favorable night. 31 17.94 16.10 1.84 16.79 14.20 2.59 Doubtful, because of the vicinity of the objects in A. R. 1850. Jan. 1 18.83 16.00 2.82 17.85 14.11 3.74 Better results than usual. 2 19.05 15.90 3.15 17.40 14.02 3.38 Measures doubtful from several causes. 4 18.96 15.60 3.36 17.13 13.84 3.38 Not favorable, though part of the measures good. « 18.74 15.30 +3.44 17.16 13.66 3.50 Not satisfactory results. « 14.61 15.30 —0.69 16.65 13.66 9.99 7 16.72 15.15 +1.57 18.01 13.60 4.41 Variable In value. 8 18.03 15.00 3.09 17.64 13.40 4.34 Very fair night's work. 9 19.18 14.85 3.33 16.71 13.40 3.31 Same as yesterday. 10 19.56 14.70 4.86 16.92 13.90 3.79 Regarded as about the mean. 11 17.68 14.55 3.13 16.15 13.30 9.95 Measures more accurate than usual. 19 16.40 14.40 9.00 15.98 13.00 2.98 Generally very good measures. 13 17.24 14.30 9.94 17.93 13.00 4.93 Do. do . 14 17.57 14.20 3.37 15.99 12.80 3.19 Planet flaring and unsteady. 15 18.93 14.10 4.83 16.40 19.80 3.60 Very fair observations throughout. 15 16.71 14.10 •J.r.l 13.74 19.60 0.94 16 18.35 14.00 4.35 16.33 12.60 3.73 Flickering light and unsteady motion. 17 17.00 13.90 3.10 16.50 13.50 4.00 Moderately fair observations. 18 16.41 13.80 2.61 17.14 19.40 4.74 Very unfavorable night. 18 15.74 13.70 2.04 15.65 12.20 3.45 Only one measure. 30 14.32 13.60 0.72 13.47 12.30 1.27 An extremely good night, and reliable measures. 91 17.11 13.50 3.61 15.23 13.00 3.23 Measures not satisfactory. 92 15.76 13.35 2.41 14.10 12.00 3.10 Regarded extremely satisfactory. 23 14.70 13.20 1.50 14.32 11.80 2.42 Nothing remarkable in measures. 93 14.45 13.90 +1.25 13.65 11.80 1.85 94 12.62 13.10 -0.48 13.86 11.60 +3.26 One of the very best nights. DIAMETERS OF MARS, 1849-50. - („....,. ; N.A. borisoaul. ..:,..,,„: -It. A. OWtrrW vrrtic»J. N.A. rettical. ,......;..,! -N.A.rer. Brmwkt. iaaa. Jw. K • p 13. IS 13.93 13 30 a 13.00 14.90 19 75 H +0.15 1.03 0 55 tf 13.09 15.15 13 tt ti 11.40 11.40 11 90 H +1.69 3.C5 1 09 Meuurt* pnermllf rery good. Hu; night, and the Mmr indi.lmri. tt * 31 17.85 15.33 13.30 I9.eo 19.30 11.00 4.65 3.03 +1.30 13.84 1877 U.4a 11. SO 11.00 10.80 9.M 1.77 +1.W Star Kareely ob«»nablt ; ohMrratioiu ducordant. Ordinarily fairroulu. An rzuemely Tavarable night. Meat 1 of M nbM>n -(-9.349 SSobwn +2.889 DIAMETERS OF MARS, 1851-52. Date. Observed vertical. N.A. vertical. Observed -N.A. Observed iorizont'1. N.A. nonzoiit'l. Observed —N.A. Remarks. 1851. Dec. 16 it 14.70 u 11.90 u +3,50 9.97 11.70 it —1.73 Early observations, images blurred and unsteady; latter sharp and 16 13.14 11.20 1.94 10.75 11.70 -0.95 steady. 19 13.61 11.40 +2.21 18.25 12.00 +1.25 At commencement of observations both objects flaring and unsteady ; tfin|»t:rature falling; atmosphere moist. The white zone about the 19 11.27 11.40 —0.13 15.36 19.00 3.26 north pole of Mars distinctly visible, and marked by a dark line. 19 13.58 11.40 +1.18 16.37 19 00 4 37 The zone apparently one- sixth diameter of planet. 28 14.62 12.20 2.49 17.64 19.90 4.74 Measures satisfactory. White zone not so dark. 29 12.61 12.40 0.21 14.94 13.20 1.74 At commencement images flaring and unsteady ; at the close excellent. 30 13.48 12.40 1.08 17.90 13.20 4.70 Fine night ; images sharp and clear. 31 13.60 13.60 1.00 16.65 13.50 3.15 Same as last night. 1852. Jan. 1 13.85 13.60 1.25 17.38 13.50 3.88 Fine night, and measures satisfactory. 2 14.10 12.60 1.50 17.94 13.50 3.74 Same as last night. 4 13.9* 13.80 1.16 17.66 13.80 3.86 Earlier observations images flaring and tremulous; latter steady; measures fine. 5 12.85 13.80 0.05 15.17 13.80 1.37 No sharp images during the observations; planet slightly tremulous all the time. 6 13.36 13.00 0.38 15.49 14.10 1.39 Both objects were sharp, but their images dim. 7 14.15 13.00 1.15 17.01 14.10 +2.91 Generally blurred and tremulous. 8 13.77 13.00 +0.77 13.86 14.10 —0.24 Objects badly defined and wavy. 1 13.90 13.00 —0.10 17.46 14.10 +3 36 1 13.43 13.00 +0.43 18.41 14.10 4.J1 Night fair; observations satisfactory, though both objects were wavy in motion. 10 14.14 13.20 0.94 17.10 14.40 2.70 Earlier observations images badly defined and unsteady; afterward the objects were tharp and measures good. 11 14.55 13.20 1.35 15.75 14.40 1.35 Early part of night cloudy ; latter part clear; measures very fair. 12 15.00 13.20 1.80 18.07 14.40 +3.67 Objects blurred and unsteady ; measures unsatisfactory until towards the 12 13.80 13.20 0.60 14.12 14.40 —0.98 close of the observations. 13 14.19 13.20 0.99 17.80 14.40 +3.40 linages blurred, flashing, and whirling. 14 14.44 13.40 1.04 15.90 14.40 1.50 Fine night ; satisfactory measures throughout. 16 13.84 13.40 0.44 17.54 14.70 2.84 At commencement objects indistinct and tremulous, but improving to- wards tlie close. 17 13.63 13.40 0.93 17.44 14.70 2.74 Objects well defined and steady throughout. 20 14.08 13.40 +0.68 17.74 14.70 3.04 Planet flaring ; the measures, however, arc tolerably fair. 90 13.36 13.40 -0.14 15.75 14.70 +1.05 31 15.10 13.40 +1.70 12.38 14.70 —2.32 Observations discontinued in consequence of haze obscuring the objects. 23 14.98 13.40 1.56 18.98 14.70 +3.58 Planet sharp and steady ; measures very fine. 33 14.74 13.40 1.34 17.45 15.00 2.45 Objects a little blurred and tremulous at times, but measures satisfactory. 34 15.02 13.40 1.63 19.06 15.00 4.06 Commencement, images blurred and unsteady; subsequently sharp and equable. 85 16.27 13.40 2.87 18.17 15.00 3.17 Generally ill defined and unsteady. 27 13.54 13.40 0.14 16.46 15.00 1.46 A very satisfactory night in all respects. 28 13.66 13.40 0.26 16.31 15.00 1.31 Not quite as good as last night. 29 13.50 13.40 +0.10 16.96 15.00 +1.96 Fine night, but the measures are not very satisfactory. 30 13.04 13.40 —0.36 14.93 15.00 —0.07 Fine night ; large number of the measures doubtful, in consequence of the comparing star being not brighter lhau 11 or 1'2| magnitude, and very dim under light. 31 13.18 13.30 —0.02 15.99 14.70 +1.22 Images excellent, instrument steady, and measures satisfactory. Feb. 1 13.27 13.20 +0.07 10.84 14.70 —3.86 The planet and star blurred; the measures are, therefore, not good. 2 13.53 13.20 +0.32 16.59 14.70 +1.89 Fine night ; objects a little wavy, but measures very satisfactory. 3 13.19 13.20 —0.01 . . Cirro strati all over the heavens ; objects indistinct and unsteady. 7 12.96 13.00 —0.04 18.03 14.40 3.63 Night unfavorable ; images neither sharp nor steady ; measure not more than fair. 8 13.35 12.80 +0.55 15.72 14.40 1.33 Same as last night. S 13.99 12.80 +0.19 15.93 14.40 + 1.52 Fine night ; clean, steady images ; measures satisfactory. 9 12.71 13.80 —0.09 14.38 14.40 —0.02 43 SS8 DIAMETERS OF MARS, 1851-52. Mi vertical. N. A. vertieal. Ob*erved -N.A. Observed IMWiZOUII. V A. hwuoni'l -N.A. Remark*. - . • • H »* a It Frk. 10 19.7* 1960 +0.18 16.04 14.10 +1.94 Night eiccllent; image* sharp and steady. 11 19.78 19.60 +0.18 18.14 14.10 +4.04 Same an preceding. 11 19.01 19.60 -0.59 13.51 14.10 -0.59 13 11.79 19.40 0.61 15.09 13.80 +1.99 Images blurred and unsteady ; measure* only tolerable. 13 19.34 19.40 0.06 15.54 13.80 ' 1.74 14 19.03 19.40 —0.37 14.99 13.80 0.49 Star very indutinct at timn, and the images blurred and wavy. 15 19.87 U.40 +0.97 14.68 13.80 0 88 Same remark* applicable a* last njjht. It 19.54 19.90 +0.34 15.17 13.50 1.67 Earlier observations image* blurred and unsteady ; latter much b- ' 17 11.78 19.90 -0.49 14.73 13.50 1.33 Al eommencement images badly defined, motion not uniform ; later they became better, uiid lU>- work uctory. • 19 11.48 19.00 0.54 14.39 13.50 0.89 Much haze; planet tolerably steady ; comparing star dim ; measure* of it in many cases very doubtful. 11.51 11.80 0.99 15.56 13.90 9.36 Tlie evening good ; measure* generally satiafactory. SI 11.53 11.60 0.07 14.70 13.90 1.80 Fine night ; Images sharp and steady ; measure* satisfactory throughout. • 11.45 11.60 0.15 14.13 19.90 1.93 Blurred and untteady ; measures but little better than guesses. S3 10.37 11.60 -1.S3 14.38 13.90 +1.48 Sharp and steady. M 11.49 11.40 +0.09 11.74 13.60 -0.86 Clean image* and steady ; tneaiurea generally very fair. M 10.98 11.40 -0.43 14.93 13.60 +9.33 Pine night ; image* clean and steady ; measures very fair. M 11.91 11.90 +0.01 13.91 13.60 +0.61 Very fine night ; no better images nor more satisfactory work. 87 11.19 11.90 —0.08 19.19 13.60 —0.41 Same a* last night. • 11.19 11.00 +0.19 9.34 13.30 —9.96 Much blurred and very indistinct ; measure* not satisfactory . -- 10.60 11.00 —0.40 14.79 19.X +9.49 • 10.07 11.00 0.93 13.79 19.30 +1.49 Owing to cirri, image* blurred and unsteady ; star often very indistinct. Mar. 1 10.46 10.80 0.34 11.09 12.00 -0.98 Generally sharp and good. 9 10.66 10.80 0.14 . . . . Fine night ; images sharp and steady ; measure* satisfactory. 3 10.41 10.60 0.19 Objects badly defined, and indistinct ; observations unsatisfactory. 4 9.96 10.60 0.04 13.16 11.70 +1.46 Night fine ; images steady ; measure* satisfactory. 8 10.03 10.40 0.38 13.73 11.70 +1.03 Blurred and unsteady at commencement ; subsequently better defined and sharper. 7 10.38 10.40 0.04 9.40 11.70 —a. » Badly defined ; constant tremulous motion. 8 10.09 10.90 0.18 19.44 11.40 +1.04 Remark* of last night applicable. 9 9.70 10.90 —0.50 13.38 11.40 0.88 Unsurpassed in good definition and Heady motion by any night during the eerie*. 10 11.74 10.00 +1.74 19.56 11.10 1.46 Last night's remark* applicable. 11 9.79 10.00 —0.98 11.31 11.10 0.31 Same as last night. 19 U.60 9.80 0.90 11.44 10.80 .; ".,:: Good image* ; satisfactory measures. 19 9.63 9.80 0.17 10.33 10.80 —0.47 13 9. 97 9.80 0.53 Never better or steadier measure*. 14 9.46 9.80 0.34 19.44 10.80 +1.64 Quite steady, but dim all the evening. IS 9.97 9.60 —0.33 10.38 10.50 —0.19 A blur about the planet and an unsteadiness of motion, somewhat im- pairs the observation*. Mean of 81 observations . +0.379 77 otwervations . +1.504 VERTICAL DIAMETERS OF VENUS, 1880-51. Date. Her. circle. N. A. C — N. A. Equatorial. N. A. E — N. A. Remarks. 1850. it „ „ „ ii „ Oct. 19 29.88 28.88 +1.00 20 29.74 29.28 0.46 21 31.28 29.64 1.64 22 31.28 29.88 1.40 . . Passing cirri. 33 31.84 30.28 1.56 24 31.38 30.68 0.60 25 31.56 31.32 +0.24 86 31.56 31.92 —0.36 27 31.56 32.48 0.92 30 33.23 33.72 0.49 Nov. 1 33.23 34.72 —1.49 5 39.38 37.13 +2.26 7 38.12 38.12 ±0.00 8 39.66 38.72 + 0.94 10 42.45 40.12 2.33 Seen through clouds. 11 42.73 40.72 2.01 13 43.57 42.16 1.41 14 44.68 42.92 1.76 15 45.18 43.79 +1.46 Mean of five measures at 22*. 56m. 16 45.53 44.33 +1.20 17 44.54 44.96 —0.42 18 47.47 45.78 +1.69 19 47.47 46.56 0.91 48.55 46.73 1.82 Seen through cirri. Mean of four measures at 23A. 20m. 20 48.59 47.36 1.23 . . . . Cirri passing all the time. 21 50.13 48.13 3.01 23 52.93 49.60 3.33 . . . Very unsteady. Observed by Lieut. MacRae. 26 53.93 52.16 0.77 27 53.34 52.92 0.43 •:- 54.33 53.58 0.76 Dec. 2 59.48 56.76 2.72 4 S8.37 58.12 0.35 . . . Passing cumuli during the observation. 5 60.93 58.72 3.20 60.91 56.68 a.03 Mean of ten measures at OA. 30m. 8 61.72 60.33 1.40 Lieut. MacRae, observer. 10 65.07 61.38 3.79 Do. do. 13 65.07 62.04 3.03 . Do. do. 13 63.67 62.24 1.43 Lieut. MncRae. observer. Cusps badly defined and cres- cent very slender. 1851. Jan. • 6 57.25 50.04 7.21 , . . . 1 7 57.81 49.24 8.57 . . 8 53.62 48.48 5.14 9 54.46 47.84 6.62 . . All of Hirst' measures were made with an imperfect mi- crometer screw. Jt wns so defective as to hp regarded 11 52.50 46.34 6.36 ' ' tisclt-ss for the zone obserrations. They are not in- 12 47.75 45.44 3.31 \ \ [ corporated in the mean result. 13 52.22 44.64 7.58 . . . , , 14 52.78 43.84 +8.94 . . 24 37.93 37.39 0.54 Mean of ten measures at 13A. 15m., daylight. 26 . § . 37.56 36.19 0.37 Mean of ten measures at 13A. 10m. 27 30.86 35.60 0.28 Mean of ten measures at 13A. 15m. 28 36.60 34.99 1.61 Mean of ten measures at 13A. 30m. Feb. 5 . . f . 3-2.50 31.20 1.30 The observations generally gootl. S 31 .93 31.18 4-0 75 Mean of ten measures at 14A. 15m. i "• " 9 to VERTICAL DIAMETERS OF VENUS, 1850-61. ~. Mrr. circle N. A. C -V. A. Equatorial. H. A. E -N. A. Remark*. Fib. • • i 33.40 30.80 It + 1.60 VITV fine morning; good mradjr Imafe*. N > . . . . . 31.01 : I.K 0.33 Mean or 11-11 UK :i-iirffi at 14A. 39m. . . . 30.S8 30.41 0.4.1 Very lu L''Kid Images. T . . 31.43 30.38 l.cr, M. in MI f'H mi , it!- - at 14A. 'Him. 10 i . . . , 1.69 10 39.49 96.96 0.51 Mean of ten mearum at 144. 49™. H . mi . +1.174 1C l linn« . + 1.046 VERTICAL DIAMETERS OF VENUS, 1852. Date. Mer. Cir. N.A. C — N.A. Equat'l. N.A. E — N.A. Remarks. 1652. it „ „ // // it May 30 30.30 39.28 +1.02 36.77 39.33 —2.56 There never was a sharp image. At transit, tremulous. 31 32.12 29.68 2.44 Seen through clouds. June 2 31 00 30.48 0.53 32.84 30.53 +2.31 Unsteady and blurred. At transit, excessively unsteady. 3 33.79 30.88 3.91 30.36 30.93 -0.57 Sharp images. At transit, very fair observation. 12 37.14 35.68 1.46 38.64 35.73 +2.91 Star very dim. / 13 37.28 36.08 1.20 . . . . Very tremulous. 15 38.49 37.60 0.89 Sharp images. S3 43.29 41.70 1.59 43.16 41.81 1.35 Measures not very satisfactory. H 43.85 42.56 1.29 46.99 43.69 +4.30 Sharp clean images. 24 43.96 43.10 +0.88 42.65 43.31 -0.58 Good images. 28 43.39 45.96 —3.67 . . . . Seen through cirri. 29 46.64 46.73 0.08 . . Very unsteady. 30 47.20 47.36 0.16 July 1 47.89 48.12 0.33 Seen through cirri. 5 49.15 50.92 1.77 Quite unsteady. 6 50.55 51.53 0.97 . . . . Fair observation. 7 50.83 52.12 l.M . . . Quite unsteady. 8 SI. 11 52.72 —1.61 . . Extremely unsteady. 9 53.48 53.28 +0.30 Very unsteady and not satisfactory. 10 53.38 53.72 —0.34 55.53 53.83 +1.70 Mean of six measures at 124. 54m. Bid. time. 13 55.02 55.28 —0.28 Southern cusp so indistinct that it is doubtful. 29 57.25 54.52 +2.73 . . . . 30 55.15 54.08 1.07 60.31 54.20 6.11 Star badly defined. 31 55.85 53.52 2.33 UtM 53.60 3.29 Air lull of moisture. At transit, very tremulous. 31 56.33 53.60 +2.73 Mean of five measures at 3/t. 17m. sid. time. Aug. 4 52.36 51.28 1.08 49.68 51.40 —1.72 Unsteady and blurred. At transit, tolerably sharp and steady. 4 54.65 51.40 4-3.35 Mean of six measures at 34. 23m. sid. lime* 5 52.78 50.68 2.10 -|-M.*W Good observation. 6 51.94 50.08 1.86 . . . . Through thin cirri, but quite sharp and steady. Cusps not quite clean. 7 52.50 49.48 3.03 . . . Rather tremulous. 8 51.66 48.84 9.83 45.35 49.00 —3.65 Very indifferent. 10 49.99 47.40 3.59 . . 12 48.31 45.64 2.67 46.96 45.83 +1.14 Good measures. At transit, tremulous. IS , 47.91 W.H S.ll Moan of six measures at 34. 49m. sid. time. 13 50.41 44.84 5.57 46.54 44.97 1.57 Not very satisfactory. At transit, quite steady. 13 . 48.43 44.97 3.48 Mean of six measures at 34. 46m. sid. time. 14 46.22 44.08 3.14 Cirri rendering cusps dim. 16 44.83 42.88 1.94 45.48 42.99 2.49 Cirri. Star dim. At transit cirri, tolerably steady. 16 . . . . . 43.68 42.97 0.71 Mriin of six measures at 34. 53}m. sid. time. 21 42.87 39.68 3.19 41.62 39.79 +1.83 Fine observations. At transit, very tremulous. 21 . . . 38.92 39.78 —0.86 Fine observations. 21 . . 41.63 39.77 +1.86 Mean of six measures at 4A. 14m. sid. time. 23 43.15 39.08 4.07 39.70 39.19 0.51 Very badly defined. At transit, excessively unsteady. 23 42.17 38.53 3.65 41.36 38.59 2.77 Very unfavorable morning. At transit, unsteady and clouds. 38 37.98 35.68 2 30 38.66 35.78 S.88 linages badly defined. At transit, same ; tolerably steady. 31 36.58 33.92 3.66 . . Bad image, but tolerably steady. Sept. 1 36 86 33.48 3.38 36.05 33.58 2.47 Good observations. At transit, tolerably steady. 1 34.21 33.59 0.62 Mean of six measures at 44. 42m. sid. time. 2 35.75 32.96 2.79 36.38 33.00 3.38 Blurred. At transit, quite stc;uly. 3 35.33 32.68 3.65 33.83 32.78 1.05 Unsteady and blurred. At transit, tolerably steady. 6 33.37 31.33 2.0.-, 31.73 31.33 0.35 Generally satisfactory. At transit, quite steady and sharp. 7 33.23 30.92 3.31 33.03 30.99 2.04 Unsteady and badly defined. At transit, sharp, but unsteady. 8 33.67 30.52 2.15 31.82 30.58 +1.24 Unsteady. At transit, excessively unsteady. 13 39.60 38.52 +1.08 • • • • Tolerably steady. Mean of 45 observation' . +1.505 34 observation! . + 1.512 MARS AND VENUS, U. S. NAVAL OBSERVATORY, WASHINGTON, LIEUT. M. F. MAURY, LLD., SUPERINTENDENT. MICROMETKICAL MEASUKES WITH THI FOURTEEN FEET EQUATORIAL THE OPPOSITIONS OF MARS AND INFERIOR CONJUNCTIONS OF VENUS IN THE YEARS 1849—1852. LETTER FROM LIEUTENANT MAURY, U. S. N. OBSERVATORY, WASHINGTON. SIR : I have the pleasure to enclose you herewith the observations made at this establishment in connection with your Astronomical Expedition to Chile. They relate to Venus and Mars, and were made with the large equatorial by Mr. Ferguson. The accompanying letter from him to me, descriptive of the method of observing and reducing, contains, it is believed, all the explanations necessary. I have not had the force to spare for copying these observations ; I will, therefore, be obliged to you if, when you are done with them, you will return the originals to this office. Respectfully, &c., M. F. MAURY. Lieut. J. M. GILLISS, Astronomer of Expedition to Chile, Washington. UNITED STATES NAVAL OBSERVATORY, May 1, 1855. SIR : I herewith present journals of observations, and reductions of the same, of Mars and Venus, made in conformity with your instructions, and intended to be used in connection with observations of the same planets made in Chile under the direction of Lieutenant James M. Gilliss, for a more accurate determination of the parallax of the Sun. You will remember that early in December, 1849, after Mars had been observed several times and under different atmo- spherical circumstances, I stated to you that, from a discussion of the results of the compari- sons already made, it was very evident that few of them would be available for the purpose intended, as at that season of the year the planet would but seldom be susceptible of sufficient definition to admit of the requisite accuracy of comparison. At the same time, I requested to know from you whether observations should be limited to such times as afforded reason- able hope of available results, or whether you wished me to observe without reference to cir- cumstances. In answer, I was directed to observe whenever the planets were visible — this instruction applying equally to Venus and Mars. In consequence, observations have been made, and are now presented, which were not expected at the time to possess the requisite precision, and whose value can only be estimated by the character of the results derived from them. The following description of the method of observing ; the state of the instrument ; its adjustment, and the value of the revolution of the micrometer, will supply all the information not given in the record of each observation. The observations were made by myself, -without any assistant; the circle of declination being clamped so as to bring the compared objects in the middle of the field, and the polar axis left altogether free ; the position of the instrument being sufficiently assured by its weight. 44° 346 INTROnfCTION TO THE The times were read from a chronometer placed near the observer. In the winter months tho doors and windows wore left open, and every precaution taken to equalize the internal and external temperatures. This condition could not often be perfectly obtained — it being impos- sible, in cold weather, to exclude entirely the heat from the lower part of the building. The external and internal temperatures are given at each observation ; and, in addition to such remarks as were deemed essential to designate tho state of the atmosphere, there is given opposite each series an abstract estimate of its quality, shown by the figures following the letter A ; A 10 signifying the most perfect condition. Tho chronometer used was compared with the standard clock of the Observatory immediately before the commencement of each series of comparison. A sidereal chronometer was used until October 12, 1850, and after that time a mean-time chronometer. In the reduction of the observations subsequent to October 12, 1850, the quantity J t applied to the differences in right ascension expresses the correction necessary to reduce the mean to the sidereal interval. The adjustment of the instrument was verified by observations of standard stars at proper intervals ; the deviation of the polar axis in elevation, or in azimuth, never exceeding 30 seconds of arc. The state of the adjustment is sufficiently indicated by the micrometer readings to the same fixed star. The value of a revolution of the micrometer used in the reductions is 15". 3717. It has been determined by transits of stars within 20° of the pole, and by measured distances between well determined stars of the Pleiades. The following table designates the character of the observa- tions upon which the value adopted here depends : Dale. Objccu. Temp. Kev. No. comp. Part of scale. A. 1849. • „ •VI. 11 15.38570 18 10 to 70 10 Feb. 5 i) Tauri 20 g. Maia 27 .37036 20 10 to 70 6 11 4 — 10 Pleiades 42 . am 10 37.6 to 55.7 7 13 Do . 47 .41936 16 37.9 to 45.3 7 17 Do . 40 .36391 10 36.7 to 45 10 SI 16 g. CO C I'lciad 47 .35176 10 36 to 55 9 S3 Do . 43.5 .36641 . 36 to 55 9 25 Do . 5C.7 .36621 SO 31 to 50 10 96 Do . CO .39344 12 38 to 57 10 Mar. 1 Do . 56 .38035 6 33 to 43 7 4 Do . 40 15.3674V 14 43 to 61 8 For the final value (15.37168) the mean was taken, rejecting the observations of February 11 and 12. No attempt has been made to introduce a correction for temperature. At the commencement of the observations, the micrometer contained three transit wires, and a declination wire upon ono slide, and three declination wires upon the other ; the latter slide being the one moved by the micrometer screw ; the transit wires being designated by the letters A, B, C, and the central wire on the same slide by /. The three declination wires on the other slide ;irc designated by the numbers 1, 2, 3 ; No. 1 being next to the micrometer screw-head. After December 18, 1851, five declination wires were introduced instead of three; numbered as in the first arrangement. Tho values of the intervals between the declination wires were as follows : From November 1, 1W9, till March 13, 1850 From October 1, 1850, till November 1, 1850 Hcv. 1-3 = 30.151 9 — 3 = 29.913 60.064 1 — 9 = 30.143 9-3 = 39.947 1 -3 = 60.088 WASHINGTON OBSERVATIONS. 347 Rev. From November 1,1850, tillJnnuary 10, 1851 . . . 1 — 2 = 30.219 2 — 3 = 29.870 1 -3 = 60.089 From January 16, 1851, till March 1, 1851 1—2 = 30.179 2 — 3 = 29.936 1—3 = 60.115 After December 18, 1851, the wires were unchanged, having the following intervals; Rev. 1—5 = 60.149 1 —4 = 42.997 1—3 = 30.091 1 — 9=17.113 In observing, the inner side of the wire was brought into contact with the limb of the planet, so that the measured diameters are too great by the thickness of the wire. This thickness may be taken for all the wires at 0".432 ; a value determined by the interval between the centres of two wires brought to touch each other, using the highest magnifying power of the telescope. At the commencement of the observations of Mars in 1849, the declination wires were brought into contact with both limbs of the planet at each comparison ; and that a similar result might be obtained from the transits, the preceding limb was observed on A and C, and the following on B. This practice was discontinued in the subsequent observations. The power of the eye-piece used, unless where otherwise noted, was 120. The headings of the different columns in the record of observations sufficiently explain their contents. In reducing the observations, the mean differences of right ascension and declination have been taken as the true differences of these quantities at the mean of the chronometer times. For this epoch, the correction to the chronometer and the correction for differential refraction (Jf) have been given. In the final discussion of the observations, it will doubtless be necessary to select from the comparisons, and consequently to adopt other means than those used in this preliminary reduction. The corrections to the observations of Venus, necessary on account of defective illumination, have not been computed. Very respectfully, your obedient servant, J. FERGUSON. MATTHEW F. MAURY, LL. D., Lieut. U. S. N. , and Superintendent of the Naval Observatory. OPPOSITIONS OF MARS, 1849-52. MICROMETRICAL OBSERVATIONS, THE 14 FEET EQUATORIAL, AT THE NAVAL OBSERVATORY, WASHINGTON. OPPOSITION OF MARS, 1849-50. NAVAL OBSERVATORY, WASHINGTON. NOVEMBER it, 1849. No. for reference. Object. ChroQ'r time of transit. Mean of wires. Micr. Mars — Start Bar. Thermometers. A. B. : c. A a. A A Alt. Int. Ex. •i f. 8. h. m. s. Rev. m. >. Rev. Inches. 0 « • 1 2 3 4 & S 7 8 9 10 11 13 13 14 15 16 17 18 19 H D.Z. . . . 348.84 •9.10 38.1 5.7 49 0 51.3 19.9 4.8 4 1 51.40 2 33.730 2 31 .671 2 39.713 2 33.782 2 33.769 2 31.700 2 32.567 2 32.416 9 25.652 2 33.919 9 31.608 2 32.9B7 233.638 2 33.701 9 31.551 2 32.541 2 39.069 +7 2.93 4.78 7 3.50 5.25 7 3.90 5.80 7 3.88 5.94 —0.052 +1.353 0.281 +1.692 30.092 50.3 50.2 43.6 • 9 .... Man . . . S.P. . Mara . . . F. . . 41.0 43.0 35.0 3.3 54.0 56.0 48.5 16.5 8.0 9.5 1.5 4 8 54.33 4 8 56.16 4 18 48.33 B. Z. . . . 348.84 •9.10 . . . • . . •9 47.3 13.5 Mars . . . N.P. . Maw . . . F. . . 59.0 53.5 18.3 45.0 ••- i; 5.0 7.0 31.5 31.0 58.0 425 51.83 4 25 53.58 4 33 18.17 4 36 17.10 B.Z. . . . 348.79 B.Z. . . . 348.84 •9.10 • 9 4.7 3.2 Mars . . . 8.P. . Mars . . . F. . . 7.0 9.2 54.2 91.8 6 0 21.0 23.0 8.1 35.4 19.2 35.0 36.5 91.0 49.1 4 4321.00 4 43 22.90 5 3 7.79 B. Z. . . . 348.84 •9.10 •9 Mara . . . N.P. . 58.0 12.0 95.0 5 10 11.67 91 Mara . . . F. . . 1.1 13.1 97.0 5 10 13.73 99 93 B. Z. . . . 348.84 •9.10 30.2 58.3 43.1 11.0 57.0 94.8 5 29 43.43 2 33.858 9 31.599 7 4.00 5.77 —0.131 34 •9 40.8 54.7 . . «... 2 32.502 25 26 27 28 Mara . . . S.P. . Mare . . . F. . . 34.0 36.2 53.7 22.1 47.3 49.1 1.0 9.3 90.5 48.0 5 36 47.43 5 36 49.20 5 47 7.10 2 33.989 2 29.272 2 27.245 7 4.83 6.90 +1.997 / 'B.Z. . . . 348.84 •9.10 H •9 5.6 19.2 , . . . " . 2 28.170 30 Mara . . . N.P. . 58.0 12.1 95.7 5 54 11.93 2 27.275 31 Mare . . . F. . . 0.2 13.5 96.3 5 54 13.30 33 33 B. Z. . . . 348.84 •9.10 15.6 44.1 99.2 56.7 42.3 10.1 6 9 29.03 2 29.279 2 27.056 + 7 4.75 6.85 +0.821 31 33 36 •9 Mare . . . 8. P. . 97.1 41.0 34.0 36.9 54.0 47.0 49.0 6 9 33.78 6 9 35.88 2 27.849 2 28.458 Mare . . . F. . . Remarks. Tbe night misty. Planet blurred and Indistinct. A 6. 352 Man -B.Z. 348.84 Man -B. Z. 348.84 OPPOSITION OF MASS, 1849-50, \o\i.mii.u a, i- i •(,.,,< i,,,,. , i. Results. Seven companion! . . Correction of chronometer 81s compui«m» . . . Correction of chronometer f chronometer time*. h. m. i. 5 951.19 Man centre—. An. A3. m. ». . . +7 6.31 •f 43.81 A p .... . . 0.00 h. m. f. 5 SO O.S2 Eev. 4- i.ooa + 43.83 • . . +15" 41 A f . 0"00 NOVEMBER *, 18*9. g Cbmn'r time of transit. Man— Bur. Thermometen. 9 \1 . • -, Q| •-. 1 r . . Micr. 1' lr £ Object. A. B. C. A a. A(J. uar. Alt. Int. Ex. 1 Rev. m. s. Rev. Inches. • ' • j •9 49.5 3.0 16.5 2 42.558 30.176 60.0 54.3 59.0 s • 9 ... 49.0 3.0 B 46.082 3 Man . . . P. . . 34.9 47.0 3 44 33.85 4 Man . . . 8.F. . 35.9 48.2 3 44 35.05 2 42.100 5 B. Z. . . . 348.94 31.0 1 43.848 6 B.Z. . . . 348.95 17.0 3 46 3.85 1 50.492 —1 28.80 —21.759 30.00 7 •9 3.5 2 48.086 8 •9 42.5 56.2 9.5 .... 2 42.581 9 •9 56.2 2 46.179 10 Man . P. 40.0 3 58 26.55 11 Man . . . N.F. . 42.5 3 56 28.05 2 40.690 12 B. Z. . . . 348.94 37.5 1 43.431 13 B. Z. . . . 348.95 . 10.5 3 57 57.05 1 50.544 1 29.00 20.297 30.50 14 •9 42.3 56.1 9.5 ..... 2 42.528 15 •9 99.1 42.5 56.5 .... 246.066 16 Man . . . B.P. . 19.3 26.0 40.0 4 7 26.10 2 42.068 17 Mart . . . N.F. . . . 28.2 41.8 4 7 28.10 2 40.562 18 n. '/.. . . . 340.94 10. 1 34.3 37.7 1 43.730 19 B.Z. . . . 348.95 , 55.5 9.5 4 855.60 1 50.411 1 27.50 21.808 29.50 20.302 M •9 55.2 9.9 92.9 .... 242.600 91 •9 42.1 56.0 9.2 .... 2 46.235 29 Man . . . 8.P. . 26.0 39.7 53.2 4 18 39.63 9 42.092 93 Man . . . N.F. . 97.9 41.5 54.7 4 18 41.37 2 40.551 94 B. Y.. . . . 348.94 93.9 •37.0 51.2 1 45.725 as B. Z. . . . 348.95 . 8.5 29.1 4 20 8.55 1 50.496 1 27.18 21.745 28.92 20.204 96 •» 27.2 41.9 54.5 . . . . 2 46.021 27 1 Man ... 8 P. . 11.0 25.2 36.2 4 36 24.80 2 41 .777 98 Man . . . N.F. . 12.3 27.0 39.7 4 3626.33 2 40.253 99 1 B. Z. . . . 348.94 8.2 29.0 35.6 . 1 43.612 n H. V..... 348.95 54.2 7.6 4 37 54.03 1 50.219 1 27.70 21.709 29.28 30.185 31 • 9 2.5 16.0 30.0 2 46.038 39 Man . . . 8.P. . 46.9 1.0 13.2 4 43 59.70 2 41.760 33 Man . . . N.F. . 48.1 3.5 15.1 4 44 1.60 2 40.350 34 B. Z. . . . 348.94 43.3 57.6 10.5 1 43.701 • II. Z. . . . 348.95 99.9 49.7 4 45 29.00 1 50.252 1 27.40 21.659 29.30 • •9 35.9 48.8 2.5 245.965 97 Man . . . 8.P. . 19.9 34.9 46.9 4 53 32.70 2 41.490 36 Man . . . N.F. . 2 40.208 B. Z. . . . 348.94 16.2 29.5 43.9 1 43.551 40 B. Z. . . . 34C.9S . 1.5 15.0 455 1.5.1 1 50.290 —1 28.83 -21.351 20.060 AT THE NAVAL OBSERVATORY, WASHINGTON. 353 NOVEMBER *, 1849— Contlnned. No. for reference. Object. Cbron'r time of transit. Mean of wires Micr. Mars — Star. Bar. Thermometers. A. B. C. A a. A (5. Alt. Int. Hx. a. a. a. ll. D1. :-. Rev. m. s. Rev. Inches. - • • 41 42 43 44 45 m 47 48 49 50 51 53 53 54 55 56 57 58 59 60 61 69 63 64 65 66 67 H 69 70 •9 Mare . . . 8.P. . Mare . . . N. . . 12.5 57.1 26.0 11.3 39.5 33.5 5 3 10.30 2 45.931 2 41.290 2 40.105 1 43.460 1 50.266 2 46.132 3 41.550 2 40.263 1 43.680 1 50.441 2 46.220 2 41.300 2 40.209 1 43.886 1 50.473 2 46.370 3 41.608 2 40.479 1 44.015 1 50.728 3 46.361 3 41.484 2 40.233 1 43.941 1 50.662 2 46.360 2 41.343 2 40.129 1 44.108 i 1MB -1 28.90 1 28.95 1 29.03 1 28.33 1 28.60 —1 27.95 —21.175 19.991 21.260 19.973 20.979 19.888 21.031 19.903 20.973 19.721 20.812 —19.598 30.176 60.0 54.3 59.0 B. Z. . . . 348.94 B. Z. . . . 348.95 •9 Man . . . 8.P. . Mare . . . N. . . 54.2 45.5 39.5 7.3 39.3 58.5 44.2 20.5 52.3 12.0 57.2 5 4 39.20 5 15 43.35 B. Z. . . . 348.94 B. Z. . . . 348.95 *9 Mars . . . 8.P. . Mara . . . N. . . 37.1 3.5 47.2 40.3 12.3 16.1 1.9 54.1 25.7 39.3 14.0 5 17 12.30 5 25 0.60 B. Z. . . . 348.94 B. Z. . . . 348.95 •9 Mare . . . 8. P. 6.3 51.0 29.5 19.5 5.3 1.5 43.1 33.7 17.3 525 29.63 5 34 4.15 Mare . . . N. . . B. 7.. . . . 348.94 B. Z. . . . 348 95 •9 Mara . . . 8.P. . Mara . . . N. . . 47.2 8.5 53.1 1.3 02.5 21.5 7.2 14.3 46.2 35.1 19.2 535 33.48 5 41 6.15 B. Z. . . . 348.94 B. Z. . . . 348.95 •9 Man . . . 8.P. . Mara . . . N. . . 49.3 30.5 14.3 3.5 35.2 43.0 29.3 16.0 48.0 56.3 41.6 5 42 34.75 5 5227.90 B. Z. . . . 348.94 B. Z. . . . 348.95 10.3 43.5 33.5 9.3 5 53 55.85 Remarks. Night misty ; at conclusion, stars not leen. After this comparison, the transit of the preceding limb is observed on A. C., and the following limb on B., unless where it is otherwise noted. A 5. Results. Mean of chronometer times. li. m. s. Man —B. Z. 348.95 Si i comparisons .... 41435.10 Correction of chronometer . + 49.40 li. m. a. Mara P. and centre —B.Z. 348.95 . Seven comparisons . . . 52335.03 Correction of chronometer . +49.46 Mars — . An. A <». m. a. Rev. .... — 1 28.75 — 20.993 — & 22". 68 A p ... 0.00 — 0".10 m. a. Rev. ....—] 28.66 — 20.480 — 51 14". 81 — 0".09 Ap 45 OPPOSITION OP MARS, 1849-50, MOVKMIIER 6. I- r.i. 1 2 3 4 & 6 7 8 9 10 11 IS 14 16 17 18 19 SO SI 22 93 94 Object. CumrTr lime of traiull. '.. Micr. Mara—Siar. Bar. icra. A. B. C. &». AJ Alt. Int. t. •. t. h. in. a. Ber. m. a. Rev. Inchea. • • • Man . . . 8.P. . Mara . . . N F. . II. Z. . . . 348. Wi Mara . . . P.P. . Man . . . N. . . n.i H.I 30. e 7.1 36.1 38.3 44.0 W.I 50.3 .11 .3 58.1 33.9 3 59 33.17 3 5U . 4 0 44 3D 4 590.50 3 36.177 2 36.230 •2 31.591 2 34.819 2 35.919 2 31.6:0 3 34.851 2 36.228 2 34.697 934.840 2 36.167 2 34.590 2 34.879 9 35.947 3 34.. 153 3 31.769 2 34.39.5 3 35.009 9 35.831 2 34.462 235.060 —1 8.13 1 7.60 I 7.60 1 8.13 1 7.75 1 8.18 1 8.12 —1 7.97 — l.lf.2 ^0.303 —1.401 +0.228 —1.068 +0.171 — 1.3?8 +0.143 —1.988 +0.989 —1.178 +0.217 —0.747 +0.614 —0.771 +0.596 7-> 0 65.0 61.0 B. Z. . . . 348.95 Man . . . B.P. . 59.7 39.7 15.1 43.0 36.7 4 6 28.10 4 11 13.20 Man . . . N*. . . B.Z. . . . 348.95 Mara . . . S.I1. . Mara . . . N. . . 7.3 49.9 30.8 4.1 34.3 16.0 4 12 20.80 4 16 2.60 D. Z. . . . 348.95 Ma» . . . 8.P. . Mara . . . N. . . 57.3 56.0 10.8 10.8 24.1 23.9 4 17 10.73 4 20 9.60 B. Z. . . . 34J.95 Mara • S.P. 3.b £4.9 9.5 30.9 21.3 4 21 17. .13 4 25 7.75 Man . N. . . B. Z. . . . 248.95 Mora . . . B.P. . Mara . . . N. . . S.3 11.* 16.0 26.6 39.5 38.7 4 36 15.93 4 99 31.95 B. Z. . . . 348.95 Man . . . S r. . Mara . . . N. . . 19.4 27.9 33.9 43.0 46.8 S4.9 4 30 33.07 4 3341.40 B.Z. . . . 348.95 38.0 49.1 3.0 4 34 49.37 Remarks. ObtcrrBtions interrupted by thick fog. A 6. Results. Mean of chronometer timei. b. m. a. Man P. and centra —B.Z. 348. 95 . Eight compartaoru . . . . 41734.45 Correction of chronometer . +54.47 Mara — . A a. Ad. m. «. !:• •. . — 1 7.93 — O.tOS . . . —12". 43 0.00 f'.OO NOVEMBER 10, 1840. 1 Chron'r lime of tranill. Man — Star. Thermometers. - M 'lln of ivirp* Micr Object. A. B. C. A a. A. a. a. •. h. m. «. R«T. i. Her. Inchc.. • * • 46 47 48 4> SO 51 SI 53 54 55 • 57 58 :.'.• H 61 i 63 64 65 66 67 66 69 TO 71 79 73 74 78 Laluide . . 12557 . Mm . . . B.P. . 45.3 17.1 50.1 33.0 19.5 44.5 5 1058.97 5 11 30.80 345.436 3 32.140 •j :•.-•: 9 45.571 233.109 2 30.392 245.395 2 32.055 2 30.313 2 45.2TO 2 31.862 230.231 3 46.407 2 32.751 2 31.315 345.608 3 31.953 3 30.100 2 45.692 3 31.932 330.178 245.659 331.887 3 30.191 2 4J.731 2 31 .770 3 30.053 ; ;. am 232.041 3 30.620 +31.83 31.92 31.73 31.45 31.89 30.58 30.95 31.43 31.30 +31.41 +13.986 15.154 13.462 15.179 13.340 :;,.< j 13.408 15.039 13.656 15.092 13.656 15.508 13.760 15.514 13.765 15.461 13.961 15.6T9 14.348 +15.769 30.094 74.0 47.0 44.0 Lalande . . 13557 . Man . . . 8.P. . Man . . . N. . . N.I 69.0 95.5 5.1 37.8 5 15 59.07 5 16 33.90 Lalande . . 19557 . Mara . . . 8.P. . Man . N. 36.3 50.3 3.1 8.0 23.1 5 24 49.87 5 25 31.60 Lalande . . 1-2557 . Man . . . 8.P. . Man N 59.4 13.3 36.1 30.7 46.3 58.0 5 39 12.90 5 32 44.35 Lalande . . liV,7 . Man . . . 8.P. . Man . . . N.F. . Lalaude . . 12567 . Man . . . 8.P. . Man N 6.1 58.9 30.0 51.0 53.3 11.4 44.1 33.3 5.0 35.1 56.9 5 38 19.80 5 38 49.05 53851.69 5 57 11.57 5 57 43. 15 Lalande . . liiVT . Man . 8. P. 3.3 16.3 49.1 39.1 0.8 6 1 16.30 6 1 47.15 Man . . . N. Lalande . . 13557 . Man . . . 8.P. . Man N. 40.0 11.0 53.3 97.0 7.0 38.7 6 753.43 6 8 24.85 Lalande . . 12557 . Man . . . 8.P. . Man . . . N. . 38.1 11.0 52.7 35.6 6.0 36.8 6 15 52.60 6 16 23.90 Lalande . . 12557 . Man . . . 8.P. . Man . . N. 10.1 33.5 41.2 56.5 0.8 6 42 33.44 6 4954.85 1 Remarks. The poaition of the obMrrer at the lait companion waa «i confined and cramped u to render Hie observations altogether unsatisfactory. Nlftat rery fine. Low mill, and very heavy dew. A 10. Retultt. Mean of chronometer time*. Man P. and cenlie —Lalande 13557 Man P. and centre —Lalande 19567 Nineteen cumpariwnu Correction of chronometer h. m. •. I • i;,.ii + 1 5.13 h. m. a. 8ix compariMM .... 6 7 40.32 Correction of chronometer . +1 5.94 A f> A p Mar.-. A a. Ad. a. R«T. + 33.39 + 13.994 . . . +3'34".03 0.00 + 0 .00 a. Rev. + 31.96 + 14.681 ... +3< 45" .67 0.00 + 0".06 AT THE NAVAL OBSERVATORY, WASHINGTON. 357 M» VKMHKH 13, 1849. No. for reference. Object. Chron'r lime of transit. Mean of wires. Micr. Mars— Star. Bar. Thermometers. A. B. C. An. A 36.80 3.745 B. Z. . . . 523.103 27 93 29 Mars . . . N.P. . •9 33.0 59.3 15.1 49.1 13.1 39.1 0.8 36.3 4 48 46.90 4 50 13.87 4 55 39.00 2 38.480 (Lo.t) 2 4-2 220 + 38.30 3.676 B. Z. . . . 523.106 30 31 33 33 Man . . . N.P. . *9 51.4 18.3 6.5 31.1 19.2 44.8 14.0 4 57 5.30 4 58 31.37 4 59 0.65 4 59 6.10 2 38.544 2 53.663 1 55.537 1 57.173 -2 0.80 *9 B.Z. . . . 523.111 • • 6.2 34 B. Z. . . . 523.106 45.1 58.4 12.0 5 33 58.50 2 43.740 + 34.55 +2.739 35 Man . . . 8.P. . 19.2 31.3 46.9 5 33 33.05 2 41.001 36 37 38 •9 • 9 48.3 30.4 36.0 15.1 44.7 49.1 5 35 1.70 5 35 30.30 5 35 35.80 2 5.T.372 1 5S.131 1 58.910 —2 2.75 B. Z. . . . 523.111 32.3 Remarks. Clouds interrupted further observations. The star B. Z. 523.106 was used in these comparisons, instead of B. Z. 523.111, it being most distinctly •een. The other star (111) was intended to be used in continuing the observations, had the weather permitted. A 8. a Omitted in mean. MarsF— B.Z. 523.106 . MarsS— B.Z. 523.106 . Man N -B.Z. 523.106. Results. Mean of chronometer times. Mars — * Eight comparisons . . , Correction of chronometer . Five comparisons . . . • Correction of chronometer . Five comparisons Correction of chronometer . b. m. t. 4 27 24.92 + 1 27.40 h. m. s. 4 22 45.71 + 1 27.40 h. m. i. 4 27 48.33 + 1 27.40 An. . . . . + 57.89 Ap . . 0.00 A I. Rev. + 2.104 + 32". 34 , 0».00 Ap Rev. + 3.407 + 52" 37 . O'.OO 860 OPPOSITION OF MARS, 1849-50, :>. ItOVKHBKR SB, 184 : , Object. Chron'r liate of tianiit. Mean of wire. Micr. Man— 8ur. Bar. Thermometer*. A. B. C. A «. A S. All. Int. Be. a, §, a. b. m. i. Her. a, Rev. Incho. • • • 1 1 1 •4 1 • 7 e » 10 11 19 13 11 15 It 17 18 It • 91 • 33 M 95 96 27 M • • 31 » 33 a 34 • • 37 • * 40 41 « 41 44 43 48 47 48 4* 50 Mir. . . 8.P. . Mm . . . N. . . 17.9 39.1 44.0 3 34 30.60 9 37.001 935.379 933.691 9 37.040 - : - • 9 33.589 9 36.741 2 35.078 9 33.490 2 36.449 2 35.038 2 33.503 9 36.290 235.022 9 33.509 2 36.622 9 34.789 9 33.666 9 36.455 9 34.913 9 33.599 9 36.339 9 34.858 933.631 236.335 234.787 2 33.438 9 36.518 9 34.740 9 33.487 2 36.270 9 34 638 9 33.536 9 36.139 2 34.719 9 33.476 1 M.M 9 34.651 9 33.595 936.071 9 34.570 9 33.490 2 36.170 934.557 933.493 935.985 9 34.637 9 33.481 9 35.970 9 34.707 —17.13 17.05 16.88 17.09 17.79 18.19 18.30 18.00 19.59 19.15 19.45 19.68 19.95 '19.98 -19.63 -3.310 !..-- 3.451 1.701 3.951 1.588 2.947 1.536 2.781 1.513 2.956 1.123 2.856 1.314 2.708 1.297 9.897 1.349 3.031 1.253 9.734 1.109 9.663 1.236 9.561 1.196 9.581 1.060 2.677 1.064 -0.504 1.156 49.5 Lalande . . 19937 . Mar. . . . B.P. . Man . . N.P. . 34.0 31.1 48.0 46.1 1.9 68.0 3 34 47.03 3 3744.55 Lalandc . . 19937 . Man . . . 8.P. . Man . . . N. . . 48.0 40.1 55.0 15.9 7.0 3 38 01.60 34953.55 Lalandc . . 19937 . Man . . . 8.P. . Man . . . N. . . 57.1 10.0 10.0 95.9 94.9 37.9 3 43 10.43 34623.60 Lalaade . . 19237 . Man . . . 8.P. . Man . . . N. . 4.8 18.9 54.9 31.0 3 46 40.69 3 48 17.90 LaUnde . . 12937 . Man . . . 8.P. . Man . N 90.9 36.0 35.9 49.9 47.3 3 48 35.69 3 55 33.75 Lalande . . 19237 . Man . . . 8.P. . Man . . N. . . 38.5 19.1 59.0 98.9 5.1 39.5 355 51.87 4 925.80 Lalande . . 19337 . Man . . . B.P. . 30.1 98.0 43.1 58.1 55.0 4 944.10 4 541.50 Man . . . N. . . Lalaade . . 19937 . Man . . . 8.P. . Man . N 46.0 43.9 59.3 51.1 13.9 4 5 59.50 4 10 56.71 Lalande . . 19937 . Man . . . 8.P. . 9.5 18.9 34.0 30.1 45.5 4 11 16.30 4 14 31.85 Lalandc . . 19337 . Man . . . 8.P. . Man . . N. 37.9 13.4 99.1 4.8 41.0 4 14 51.00 4 18 27.20 Lalande . . 19937 . Man . . . 8.P. . Man . . . N. . . 10.9 46.0 28.9 37.1 4 18 46.00 4 21 23.65 Lalande . . 19937 . Man . . . B.P. . Man N 39.1 90.0 43.0 36.1 57.9 47.9 4 91 43.10 4 94 33.95 LaUnde . . 19937 . Man . . . B.P. . 40.3 31.9 53.6 46.3 7.0 68.3 494 53.63 4 97 44.75 Man . . . N. . . Lalande . . 19937 . Man . . . B.P. . U.I 4.0 29.9 18.9 41.0 49804.00 4 31 97.55 Man N. Lalande . . 19937 . Man . . . 8.P. . Man . . . N. . . 34.3 17.9 47.3 31.5 1.0 44.9 4 31 47.53 4 35 30.70 Lalande . . 19937 . Man . . . B.P. . Man . . . N. . . 37.0 30.3 50.5 45.4 3.5 * • 4 3550.33 4 40 43.81 AT THE NAVAL OBSERVATORY, WASHINGTON. 361 NOVEMBER 26, 1849— Continued. No. for reference. Object. Chron'r time of transit. Mean of wires Micr. Mara— Star. Bar. Thermometers. A. B. C. A a. A Her. IncbM. • • • 100 101 109 103 104 105 106 107 108 109 110 111 119 113 114 us lie 117 118 119 190 Man . . . 8.P. . Mara N 45.9 0.3 • • 6 48 58.73 9 44.300 9 4*.94t 9 43.185 9 44.348 9 43.855 9 43.911 9 44.170 3 41. 841 3 43.141 9 44.195 9 49.757 9 43.969 9 44.380 2 42.649 3 43.330 9 44.978 9 43.768 •j i I.M - 3 44.340 3 43.585 3 43.339 —97.17 96.50 96.63 96.64 97.60 27.37 -36.60 —1.115 +0.945 —1.137 +0.356 -1.099 +0.300 —0.933 +1-505 —1.150 +0.588 -0.996 +0.514 —0.911 +0.744 49.5 Lalande . . 13337 . Man . . . 8.P. . Man N 19.3 91.8 96.1 41.5 39.3 6 4935.80 65240.33 Lalande . . 19337 . Mara . . . 8.P . Man . . N. S3.9 3.0 0.7 18.1 90.3 653 6.83 6 57 16.53 Lalande . . 12237 . Man . . . S.P. . Man N. 89. 5 6.9 43.0 91.0 57.0 6 58 43.16 7 1 19.73 Lalande . . 13237 . Man . . . S.P. . Man . . . N. 33.0 96.1 46.1 41.3 0.0 7 1 46.37 7 5 39.63 Lalande . . 12237 . Man . . . S.P. . Mara . N. . 53.8 10.7 7.1 I .1 91.0 7 6 7.93 7 9 94.33 Lalande . . 13337 . Man . . . S.P. . Man . . . N. . . 39.9 55.4 53.6 11.1 6.0 7 9 53.60 7 18 8.93 Lalande . . 13337 . 94.0 37.5 • • 7 18 37.53 Remarks. Planet blurred, and Mar faint and unsteady, a Omitted in mean. A 7. Results. Mean of chronometer timei. Man — • Mara P. —Lalande 19937 Man centre —Lalande 19237 Twenty-neven comparisona . Correction of chronometer . Twenty-nine comparluini . Correction ofchronometer . Mara P. and centre —Lalande 19237 . Eleven comparUoni . . , Correction of chronometer . li. in. i. 4 37 31.15 + 1 33.34 h. m. •. 4 36 16.78 + 1 33.34 b. m. -. 6 43 53.78 + 1 31.55 in. M 0.00 Ap 0.00 Rev. — 1.737 — 96". 70 — 0".00 Rev. — 0.446 -6".86 -0".00 AT THE NAVAL OBSERVATORY, WASHINGTON. 363 NOVEMBER 2T, 1 849. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Mars — Star. Bar. Thermometers. A. B. C. A a. A I. Att. Int. Ei. a. 8. 8. h. m. s. Rev. m. s. Rev. Inches. • • i 1 a 3 4 5 6 7 Man . . . S.P. . Mara . . . N. . . 38.1 53.2 5.0 3 40 51.55 2 35.663 2 33.781 2 45.700 8 35.443 2 33.851 2 45.639 2 24.730 —1 33.18 —10.712 — 9.121 43.5 9 • . . 5.2 16.5 18.0 31.0 32.0 43.2 3 42 18.40 4 2 29.85 Man . . . S.P. . Han . . . N. . . • 43.0 49.0 57.0 3.0 17.1 4 3 57.03 4 4 3.03 Lalande . . 13340 . Remarks. / Planet blurred and unsteady. Impossible to make comparisons within a revolution of micrometer. A 7. DECEMBER 6, 1849. g Chron'r lime of transit. Mars — Star. Thermometers. I Mean of wirps Micr. Bar. ! ,§ Object. A. B. C. A a. A I. Att. Int. Ex. 4 B. ». l. b. m. s. Rer. *. Rev. Inches. a 0 • i Lalande . . 11714 . 57.1 11.0 25.0 3 35 11.03 2 33.550 +17.97 +19.991 29.962 80.0 39.0 9 Mara . . . S.P. . 15. a 30.7 43.8 3 35 29.00 1 43.710 3 Lalande . . 11714 . 46.2 59.5 13.1 3 45 59.60 2 33.739 17.85 21.448 4 Mars . . N.P. 4.1 19.2 30.8 3 46 17.45 1 42.442 5 Lalande . . 11664 . 4k 1 1.3 15.1 349 1.50 2 27.273 • 6 Lalande . . 11714 . 39.2 53.0 . . 3 49 53.07 3 33.710 17.33 20 251 7 Mars . . . S.P. . 57.0 13.1 23.8 3 50 10.40 1 43.610 8 Lalande . . 11684 . 1.0 15.0 28.4 3 M 14.60 3 37.355 | 9 Lalande . . 11714 . 53.1 7.0 20.3 3 56 6.70 3 33.550 16.94 21.428 10 Man . . . N.P. . 10.2 25.1 37.3 3 56 23.70 1 42.273 11 Lalande . . 11684 . 33.2 47.1 'o.i 3 59 46.80 2 27.353 12 Lalande . . 11714 . 24.6 38.0 51.0 4 0 38.20 3 33.593 16.30 20.147 13 Mara . . . S.P. . 41.0 . • 8.0 4 0 54.50 1 43.597 14 Lalande . . 11684 . 32.5 46.0 59.7 4 4 46.07 2 27.331 15 Lalande . . 11714 . 34.2 38.0 51.0 4 5 37.73 3 33.583 15.77 21.643 16 Man . . . N.P. . 40.0 55.7 7.0 4 5 53.50 1 42.091 17 Lalande . . 11684 . 24.2 38.1 53.0 4 10 38.10 237.530 18 Lalande . . 11714 . 15.0 29.0 43.0 4 11 28.66 3 33.650 15.84 20.186 19 Mara . . . S.P. . 31.0 46.1 58.0 4 11 44.50 1 43.615 . SO Lalande . . 11684 . 54.1 8.1 22.0 4 29 8.07 2 27.572 21 Lalande . . 11714 . 46.3 59.0 13.0 4 29 59.40 2 33.559 14.55 : 20.331 S3 Man . . . S.P. . 0.0 15.3 27.9 4 30 13.95 1 43.379 23 Lalande . . 11684 . 17.1 31.0 44.0 4 33 30.70 3 37.490 24 Lalande . . 11714 . 8.9 32.0 36.0 4 34 22.30 2 33.598 14.35 21.824 35 Man . . . N.P. . 23.1 38.3 50.0 4 34 36.55 2 41.925 26 Lalande . . 11684 . 19.2 33.0 46.5 4 40 32.90 2 27.358 27 Lalande . . 11714 . 11.0 34.0 38.0 4 41 24.33 2 33.503 13.95 20.172 88 Man . . . S.P. . 24.3 40.0 4 41 38.28 1 43.382 • Lalande . . 11684 . 14.0 26.9 41.3 4 45 27.40 2 27.410 30 Lalande . . 11714 . 5.0 . . 33.0 4 46 19.00 2 33.810 +13.50 +32.189 31 Mara . . . N.P. . 18.9 34.3 46.1 4 46 33.50 1 41.773 OPPOSITION OF MARS, 1849-50, DECEMBER «. 1- l-.i fi.niliiui •!. i OHM flu.. n 'r time of lran«il. Mean of win* Mlcr. Man-Star. Bar. Thermometer*. A. B. C. A«. A I. Alt. Int. Es. s i a. •• a. h. m. -. Rer. a. Rer. Incbe*. • • • m Lalude . . 11681 . 36.0 49.3 3.0 45949.43 997.385 1 • | : 80.0 39.0 33 l.alande . . 11714 . 97.0 . . 55.0 5 041.00 933.458 +19.40 +20.410 M Man . . . 8.P. . 39.8 55.9 7.0 5 053.40 1 43.199 * Lalande . . 11684 . 99.0 36.1 49.1 5 935.73 1 IB M X Lalnnde . . 11714 14.0 5 10 97.74 9 31.349 10.95 21.941 37 Man . . . N.P. 25.3 40.9 59.0 5 10 38.65 1 39.552 a Lalande . . 11684 . 53.0 7.0 90.5 5 17 6.83 i H,m 39 Lalande . . 11714 . 45. 1 . . 19.0 5 17 58.55 931.373 11.00 20.874 « Man . . . B.P. . 56. 1 • • 93.0 5 18 9.55 1 40.650 41 Lalande . . 11684 . 8.0 91.7 3S.3 59991.68 9 95.918 • Lalande . . 11714 . 0.0 . 97.0 5 93 13.50 931.282 10.70 21.914 43 Man . . . N.P. . 10.3 • • 38.1 5 2394.90 1 39.499 44 l.alandt . . 11684 . 90.4 34.9 48.1 59734.93 9 95.900 45 Lalawle . . 11714 . 19.5 . . 39.7 59896.10 9 31.921 10.55 90.692 46 Man . . . 8.P. . 83.1 • • 50.9 59836.65 ; •>,« 47 Lalande . . 11684 17.8 30.7 44.0 53330.63 995.160 48 LaUnde . . 11714 . 9.0 31.0 6 34 92.50 9 31.903 10.00 92.171 ;. Man . . . N.P. . 19.0 • • 46.0 53439.50 1 39. US to Lalande . . 11684 . 37.5 53.0 7.0 53959.50 •_> M.9M 61 Lalande . . 11714 . 31.0 . 58.0 540 44.50 9 31.181 9.91 90.849 • Man . . . S.P. . 40.8 56.0 540 54.41 1 40.490 S3 Lalande . . 11684 . 19.0 39.5 46.9 5 44 32.57 995.003 54 Lalande . . 11714 . 10.5 . . . . 54594.06 2 30.980 9.41 29.040 56 Man . . . N.P. '. • • 33.0 47.0 5 45 33.47 1 39.091 X Lalande . . 11684 . • 33.1 47.1 0.0 6 41 46.73 997.119 57 Lalande . . 11714 ... . , 59.0 6 42 38.47 9 33.363 6.30 20.554 68 Man . . . S.P. . . . 58.3 6 49 44.77 1 43.960 SB Lalande . . 11664 . 4.7 18.1 39.0 6 48 18.97 297.939 80 Lalande . . 11714 . 56.0 10.0 . . 6 49 9.67 9 33.130 5.00 -Ji Jal 81 Man . . . B.P. . 1.0 16.0 • • 6 49 14.67 1 49.940 09 Lalande . . 11684 . 30.4 44.0 57.8 66744.07 997.980 63 Lalande . . 11714 . 83.0 36.0 49.0 6 58 36.00 933.190 3.50 91 .401 64 Man . . . N.P. . 26.0 41.0 53.0 65839.50 1 41.940 • Lalande . . 11684 . 19.9 33.0 46.9 7 539.80 2 97.455 « Lalande . . 11714 . 11.9 . 38.0 7 694.60 9 33.370 3.00 92.384 67 Man . . . N.P. . 14.1 99.9 41.9 7 6 97.60 1 41.137 88 Lalande . . 11684 . 34.6 48.1 1.7 7 10 48.13 937.498 Lalande . . 11714 . 96.8 . . 53.9 7 11 39.70 9 33.610 +9.40 +20.976 - Man . . . 8.P. . 99.0 44.0 55.9 7 11 43.10 1 49.785 Remarks. The nar 11714 wan not well Ken, and at tome of the comparuoim Karcc viiible. 1 1684 in larger and wiu more dtilinct limn the other. The planet IbroufhOBt wa* btaziaf and unsteady . The wind high. A 7. Results. Mean of chronometer timci. Man B. I . -Lalande 11714 . Thirteen companion! .. Correction of chronometer h. m. *. 59 34.39 +153.91 Man — . An. A t. >. Rev. + 11.81 + 90.444 ... +51 14".95 0.0 + 0".09 AT THE NAVAL OBSEEVATORY, WASHINGTON. DECEMBER 6, 1849— Continued. Results — Continued. 365 Mean of chronometer times. h. in. s. MarsN.P. — Lalamic 11714 . . Eleven comparisons . . 51149.06 Correction of chronometer + 1 53.21 Ap Mars centre — * A a. A I. B. Rev. + 11.44 + 21.853 ... +5' 35".91 0.00 + 0".10 DECEMBER 11, 1849. 1 Chron'r time of transit. Mars— Star. Thermometers. I Mpan of wirps . Micr. Bar. 1 Object. A. B. C. A a. A a. Alt. Int. Ex. 1 1 8. '• 8. h. m. s. Rev. 8. Rev. Inches. * 0 t 1 Rumker . . 1673 . 98.2 41.5 56.0 3 26 41.90 2 34.070 +16.00 +4.436 30.498 78.0 39.0 24.0 2 Man . . . S.P. . 44.0 59.0 11.8 3 26 57.90 2 29.634 3 Rumker . . 1673 . 19.3 96.1 39.3 3 29 25.90 3 34.151 16.75 6.190 4 Man . . . N.P. . 29.3 • • 56.0 3 29 42.65 2 27.961 5 Rumker . . 1673 . 15.0 98.3 '. 3 39 28.30 2 34.059 15.95 4.698 6 Mara . . . S.P. 31.0 45.9 87.5 3 32 44.25 2 29.361 7 Rumker . . 1673 . 8.3 99.1 3 35 32.10 2 33.927 15.83 6.039 8 Man . . . N.P. . 24.3 39.0 50.5 3 35 37.93 3 27.888 9 Rumker . . 1673 . 90.8 34.9 48.0 3 39 34.33 2 33.848 15.77 4.546 10 Man . . . S.P. . 36.5 51. 6 3.7 3 39 50.10 9 29.302 11 Rumker . . 1673 . 29.0 36.1 49.0 3 43 35.70 2 32.019 15.35 6.394 19 Man . . . N.P. . 37.5 53.9 • • 3 43 51.05 2 25.625 13 Rumker . . 1673 . 14.0 99.9 42.0 3 4828.40 9 32.149 14.85 4.835 14 Man . . . S.P. . 29.6 • • 56.9 3 4843.25 9 27.314 • 15 Rumker . . 1673 . 99.8 36.1 49.0 3 52 35.97 2 33.125 14.18 6.580 16 Man . . . N.P. . 36.5 • • 3.8 3 52 50.15 325.545 17 Rumker . . 1673 . 91.1 34.0 48.0 3 55 34.37 S 32.086 13.53 5.039 18 Man . . . S.P. . 34.5 49.7 1.3 3 55 47.90 2 27.047 19 Rnmker . . 1673 . 18.5 31.0 . 4 90 31.00 9 31.731 12.70 6.580 90 Man . . . N.P. . 30.3 45.9 57.1 4 90 43.70 925.151 91 Rumker . . 1673 . 1.0 14.4 28.1 4 94 14.50 2 31.739 +12.25 +5.259 99 Man . . . S.P. . 13.9 29.0 • • 4 24 26.75 2 26.480 Remarks. Planet difTiued and unsteady. Star scarcely visible. It was thought useless to continue the- observations. AS. Mars 8. P. — Eumker 1673 Man N.P. -Rumker 1673 Results. Mean of chronometer times. Six comparisons Six comparisons Mars — • AJ. h. m. s. 8. Rev. 3 47 45.02 +14.72 + 4.802 + 2 3.73 + 1' 13". 81 Ap .... 0.00 0".00 h. m. s. 8. Rev. 3 48 33.08 +14.56 + 6.357 + 2 3.7* + 1'37".72 A« . 0.00 0".00 868 OPPOSITION OP MARS, 1849-50, DI ( i MI: BR 1«, I - r.'. 1 4 Object. Cbron'r time of tranill. Mean ofwlm. Mler. Man-Star. Bar. Therm oneten. A. B. C. A«. Ail Alt. Int. FU. a. a. a. h. m. a. Rev. m. i. K.-v. I DC lies. • • • i 9 a Mara . . . 8.P. . Man N. . . 59.1 14.9 • • 3 51 19.78 9 38.900 9 37.518 9 33.761 —1 54.18 -5.139 30.566 77.0 33.0 99.5 Rumker . . 1880 . 53.1 6.6 91.0 3 S3 6.96 « MM . . . N.P. . 19.0 34.9 46.8 355 33.90 937.535 5 Ranker . . 1880 . • • 96.8 41.0 3 57 96.98 9 33.745 1 54.06 3.780 • MM . . . 8.P. . 93.8 39.9 53.9 35838.73 339.159 7 Bumker . . 1680 . • • 39.0 46.1 4 0 33.18 3 33.743 1 53.45 5.409 g Man . . . N.P. . 15.8 Sl.l 49.9 4 339.35 3 37.479 9 10 11 Rumkrr . . 1680 . Man . . . 8. P. . 10.9 10.8 6.0 96.3 19.9 39.0 38.0 33.0 4 4 94.60 4 7 94.40 4 9 19.40 -j ::;...;: 338.933 9 33.830 1 55.95 1 55.00 3.830 5.093 Rumkrr . . 1680 . 19 MM . . . N.P. . 3B.9 54.0 5.8 4 11 53.00 3 37.308 13 Rumker . . 1680 . 34.1 47.9 1.9 4 13 47.73 3 33.670 1 5S.73 3.638 14 MM . . . B.P. . 51.3 7.9 19.9 4 16 5.25 339.069 IS Humkcr . . 1680 . • • 1.0 14.9 4 18 0.91 9 33.833 1 55.66 5.947 It Man . . . 8.P. . 9.3 35.1 37.0 4 33 33.15 939.058 17 18 19 Rumker . . 1680 . Man N.P. . 7.1 56.0 53.5 91.0 10.9 7.3 34.7 23.1 91.0 4 3530.93 436 9.55 4 39 7.97 9 33.830 3 37.330 3 33.575 1 55.78 1 57.79 5.928 3.755 Rumker . . 1680 . 90 MM . . . B.P. . 51.9 5.9 18.0 4 41 4.60 3 38.430 21 Rumker . . 1690 . 48.3 3.0 16.1 4 43 3.13 933.460 1 57.53 4.970 as • MM . . . N.P. , Rumker . . 1680 . 33.1 31.1 47.9 59.3 58.5 4 46 45.70 4 48 44.80 9 37.178 3 33.491 1 59.10 3.687 M MM . . . 8.P. . 33.1 48.0 0.0 4 0 46.05 3 38.419 ' • Rumker . . 1680 . 39.1 46.0 0.0 4 3 46.03 3 33.413 1 59.98 4.999 98 Man . . . N.P. . 15.9 30.3 43.7 4 4 38.95 337.090 97 Rumker . . 1680 . 14.4 98.0 43.0 4 638.13 3 33.633 1 59.18 3.398 98 99 MM . . . B.P. . Rumker . . 1680 . 94.0 94.3 39.9 37.5 51.1 51.5 4 8 37.55 4 10 37.73 338.393 333.353 9 0.18 5.039 • MM . . . N.P. . 30.9 45.9 57.1 4 1943.65 336.838 • Rumker . . 1680 . 30.5 44.0 S7.3 4 14 43.93 9 33.453 -9 0.98 -3.385 Remarks. Planet dinurbed and blazing ; itarof companion scarcely visible. A 5. Resylt*. Mean of chronometer tiraen. Mara centre — * MM 8. P. - Bunker 1660 Man N.P. -Rumkrr 1BW Eifht companion! . . . Correction of chronometer Seven companion* . , . Correction of chronometer A a. At h. m. B. m. a. Rev. 4 37 9.06 .... — 1 56.47 — 5.140 4- 9 6.49 ., JQ,, Q. T^ A f . . . . 0.00 — 0".09 h. m. a. ra. ». Rev. 4 33 51.73 .... — 1 67.33 — 3.639 + 3 6.43 — 55". 94 T Ap .... 0.00 — 0".09 AT THE NAVAL OBSERVATORY, WASHINGTON. 367 DECEMBER 11, 1849. No. for reference. Object. Chron'r time of transit. tf can of wires.. Mier. Mars — Star. Bar. Thermometers. A. B. C. A a. A*. Alt. Int. E*. B. B. B. h. in. s. Rev. 111. 8. Rev. Inches. 0 • • 1 2 3 4 5 6 7 8 8 10 11 12 13 14 15 16 17 18 19 SO 31 S3 33 34 35 96 97 98 99 30 31 39 33 M 35 36 37 38 39 40 41 49 43 44 45 41 47 48 49 a SO • 9 3.1 17.1 8.5 30.8 ao.i 3 15 17.00 3 16 6.39 2 33.982 2 38.653 2 37.313 3 40.149 2 33.993 •2 37.402 2 38.599 2 40.203 2 34.092 2 37.522 2 38.688 2 40.189 2 34.001 2 37.386 2 38.733 3 40.263 2 33.929 2 38.653 3 40.347 3 33.950 2 37.400 2 38.679 3 40.219 3 33.851 2 37.323 2 38.701 2 40.261 2 34.021 2 37.385 2 38.533 340.228 2 34.018 2 37.312 2 38.543 2 40.398 3 33.971 2 37.301 2 38.648 3 40.349 33>;^ 2 37.120 3 38.479 »«:SS »»:£ 2 37.340 2 38.598 2 40.165 «»:So8 2 37.151 2 38.498 —2 25.94 2 25.94 2 25.18 2 26.33 2 96.94 237.31 2 27.08 338.13 3 38.91 3 28.61 2 38.26 —2 29.60 +1.496 2.836 1.604 2.801 1.501 2.667 1.541 3.877 1.589 1.540 9.819 1.560 3.938 1.696 2.843 1.756 2.986 1.601 2.948 1.668 3.027 1.567 +2.925 30.28 78.0 44.5 36.0 Man . . . S.P. . Man . . N. . . B. Z. . . . 405.56 •9 18.5 50.7 39.1 5.1 55.3 48.1 18.3 7.1 3 18 33.33 3 22 4.70 32353.29 Mare . . . N.P. . Man . . . 8. . . B. Z. . . . 405.56 • 9 5.6 33.3 23.8 19.0 47.1 38.1 33.1 1.3 50.9 3 35 19.23 3 27 47.30 338 36.85 Man . . . N.P. . Mara . . . 8. . B. Z. . . . 405.58 •9 Man . . . N.P. . Man . . . B. . . 48.0 17.9 6.0 9.1 31.3 21.3 16.0 34.0. 3 31 3.03 3 32 31.30 3 33 30.00 B. Z. . . . 405.56 • 9 33.9 51.7 7.1 JO. 5 18.1 46.1 5.1 55.1 30.7 44.1 32.0 0.0 19.3 7.3 34.1 58.9 45.8 3 35 46.33 3 39 5.33 3 39 53.39 34330.63 3 43 44.96 3 44 31.95 Man . . . S.P. . B. Z. . . . 405.56 •9 Mara . . . N.P. . Man . . . 8. . . B. Z. . . . 405.56 •9 Man . . . N.P. . Man . . . 8. . . 33.9 11.1 59.1 37.9 36.1 13.3 39.0 3 46 59.26 3 48 37.20 3 49 25.33 B. Z. . . . 405.56 •9 39.3 58.7 59.3 13.3 0.5 96.2 13.0 3 51 52.41 354 13.40 3 54 59.19 Man . . . N.P. . Man . . . 8. . . B. Z. . . . 405.56 •9 19.3 33.1 21.1 41.6 46.8 33.0 3 57 27.32 4 0 33.06 4 1 19.19 Man . . . N.P. Man . . . 8. . . B. Z. . . . 405.56 •9 34.5 38.3 48.1 41.7 39.3 1.7 55.0 49.1 4 3 48.10 4 5 41.63- 4 6 28.29 Man . . . N.P. . Man . . . 8. . B. Z. . . . 405.56 •9 43.0 22.3 9.3 36.4 34.7 10.8 50.0 37.0 4 8 56.90 4 10 36.23 4 11 33.10 Man . . . N.P. . Man . . . 8. . . B. Z. . . . 405.56 «9 38.0 3.7 48.3 51.1 17.2 3.9 5.0 30.0 16.3 4 13 51.38 4 16 16.96 4 17 2.20 Man . . . N.P. . Man . . . 8. . . B. Z. . . . 405.56 •9 Man . . . N.P. . Man 8. 18.9 19.0 3.9 31.7 33.1 19.3 45.5 31.7 4 1931.80 4 31 33.10 4 39 17.80 Sftfi OPPOSITION OF MARS, 1849-50, DEC' l-'Mltl-'lt 17 1 V 1 1 ( 1 nf 1 lined* !-. 'IIV1. 11 1 1 . 1^1.' 11 j Chios' tine of ian-11. M [ • -\ •. - M • Man- -Star. Bar. Ttx r: • • •n. \ Object. A. B. C. All. A A Alt. INI. Ex. i •. a. i. h. m. a. 11. v. m. •. Her. Inchei. • • • 21 •» 41.3 55.1 8.3 4 3954.86 9 33.930 30.98 78.0 44.5 36.0 at Man . . . N.P. . 40.9 51.0 4 40 38.19 9 36.86* S3 Mara . . . 8. . . 9 38.359 54 Si B. Z. . . . 405.58 •• . . . 56.1 33.7 9.3 47.5 93.9 1.5 449 9.53 4 45 47.58 939.879 9 33.868 -431.34 +1.5S7 3.010 56 57 Man . . . 8.P. . Mara . . . N. . . 33.5 44631.11 9 38.009 9 36.851 - 58 B. Z. . . . 405.58 48.7 9.3 16.0 4 49 9.33 339.879 931.22 1.870 3.038 M •9 96.3 39.7 , , 4 56 39.70 337.950 W Man . . . 8.P. . 8.0 94.1 36.9 4 5799.76 1 ;•-- (1 B. Z. . . . 405.58 41.5 55.0 9.0 4 59 55.16 3 44.123 9 31.40 1.390 m •9 17.9 31.0 . 5 1 31.00 2 37.830 n Mara . . . S.P. . 58.3 14.3 98.0 5 9 19.15 1 ;•: m 94 85 B. Z. . . . 405.56 •9 33.1 38.1 46.1 59.3 59.3 5.3 5 4 45.83 5 7 51.88 344.130 9 37.843 233..6S 1.539 88 Man . . . 8.P. . 35.9 47.9 5 833.39 •• ;j M • 67 68 B. Z. . . . 405.58 •9 53.0 93.3 36.0 90.9 50.0 5 10 6.95 5 15 36.10 2 44.093 3 36.183 933.56 1.809 « Man . . . N.P. . 31.0 5 16 17.19 3 39.113 79 B. Z. . . . 405.58 37.9 51. 5 5.3 5 90 51.33 9 43.379 334.14 3.967 71 •9 14.0 98.1 % 5 31 38.10 3 36.140 79 73 74 Mara . . . 8.P. . B. Z. . . . 405.58 •9 53.9 99.0 41.1 9.0 43.1 93.0 56.1 8.9 599 7.95 5 94 49.73 5 96 54.65 2 40.432 i • i ' ' 24S.395 2 36.069 334.78 1.930 75 Man . . . 8.P. . 90.8 36.9 49.1 537 34.95 2 40.380 78 B. /.. . . . 405.56 56.3 9.7 33.3 5 30 9.70 943.303 934.75 1.993 77 78 •9 Man . . . N.P. 99.1 43.0 91.1 34.0 5 SB 43.00 5 59 20.19 9 34.610 9 37.389 79 B. Z. . . . 405.58 43.1 57.1 11.0 6 01 57.06 2 40.816 936.87 3.434 • 80 •9 98.1 41.9 t 6 5 41.90 934.853 81 Mara . . . 8.P. . . . 90.9 33.5 6 6 18.69 9 39.069 88 B.Z. . . . 405.58 43.1 57.9 10.5 6 856.93 9 41.150 938.94 9.068 a •9 6.9 19.0 . 6 11 19.00 934.979 84. Man . . . N.P. . . f 58.1 9.0 6 11 55.19 2 37.649 85 B. Z. . . . 405.56 99.0 38.1 49.5 6 14 35.86 9 41.949 88 •9 57.9 11.0 • • 6 16 11.00 3 34.»95 87 Man . . . B.P. . t f 48.5 0.8 6 17 46.99 939.335 88 B.Z. . . . 405.58 19.9 98.0 39.6 69095.93 941.988 9 38.94 9.053 •9 Man . . . 8.P. 5.0 19.1 8.9 6 !I3 19.10 6 95 54.39 1 • M •J - ' : ' B. Z. . . . 405.56 •9 11.3 34.0 1 47.7 39.0 69733.89 6 99 95.96 941.978 9 35.071 939.50 3.136 Man . . . N.P. . 46.3 •v.w 1.8 13.8 6 31 0.05 9 37.833 B. Z. . . . 405.58 • • 39.5 54.3 63339.3B 9 41.995 -939.40 +3.463 Remarks. Frnm4A. 104.15, comparisons good. During the remainder the planet blurred and roitlcn. a Not u*ed. A 6. AT THE NAVAL OBSERVATORY, WASHINGTON. DECEMBER IT, 1849— Continued. Results. Means of chronometer times. 369 MarsN. P. — B. Z 405.56 Mars S. P. — B. Z. 405.56 -h. m. s. Sixteen comparisons . . 4 18 44.53 Correction ol chronometer +219.18 h. m. s. Twenty-two comparisons. 43151.35 Correction of chronometer +219.20 ties. Mars A a. m. s. ... 2 29.64 — * Itev. + 2.S91 + 45". 98 A 0 . . . . 0.00 4- 0".02 m. s. . . . 2 30 69 Rev. + 1 693 + 26". 02 Ae . + 0".01 DECEMBER 37, 1819. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Man — Star. / Bar. Thermometers. A. B. C. A a. A<5. Alt. Int. Ex. ». •. t. b. m. i. Rev. m. 8. . Rev. Inches. e • • 1 S 3 4 So 60 7 6 9 10 11 12 13 14 15 16 17 H 19 SO 21 23 23 24 25 96 27 28 29 30 31 33 33 34 35 Mara . . . S.P. . B. Z. . . . 405.28 Mara . . . N.P. . B. Z. . 405 28 41.0 57.3 31 .8 48.3 28.1 49.7 29.8 56.1 11.4 47.1 1.8 43.0 3.5 45.1 8.0 25.9 58.9 15.8 55.2 17.5 57.2 2 45 54.50 3 48 11.30 3 51 45.05 3 54 1.96 2 56 41 65 359 3.56 3 0 -13.50 3 39.348 2 36.890 3 38.039 2 37.028 2 39.170 «»:!?i 2 39.141 2 38. 091 2 37.040 2 89.419 2 37.082 2 39.128 2 38.104 2 37.048 2 39.101 2 38.129 2 37.041 2 39. 132 2 38.112 2 37.068 2 39.390 2 38.169 2 37.087 2 39.143 2 38.068 2 37.068 2 39.463 2 38.133 2 37.068 2 39.409 2 38.188 2 36.969 2 39.490 2 38.105 3 37.080 -2 16.80 2 16.81 2 17.19 2 17.65 9 18.88 2 18.81 2 18.61 2 19.16 2 18.91 2 19.30 2 20.47 —2 20 48 —2.458 1.011 1.051 2.101 2.337 1 036 2.080 1.080 3.061 1.044 2.074 1.082 2.303 1.000 2.075 1.065 2.395 1.219 2.440 1.025 -S.410 30.200 75.0 29.0 29.0 Man . . 8. P. B. Z. . . . 405.28 Mara . . . S.P. . Man ... I*. B. Z. . . . 405.28 Han . . . 8.P. . B. Z. . . . 405.28 Man . . . 8.P. 6.8 24 1 16.9 0.8 22.1 38.2 33.1 15.0 34.1 52.0 43.8 3 3 0 69 3 7 20.45 3 9 38.10 3 13 30.35 Man . . . If. . . B.Z. . . . 405.28 Man . . . 8. P. 35.9 7.1 49.5 22.9 3.0 34.2 3 14 49.23 3 16 20.65 Man . . . N. . . B. Z. . . . 405.28 Man . . . S.P. . Man . . . N. . . 35.8 37.1 39.5 53.2 53.1 3.6 3 18 33.46 3 19 50.35 B.Z. . . . 405.28 Han . . . S.P. . Man . . . N. . . 55.0 5.9 9.2 10.8 22.7 33.3 3 22 8.96 3 33 19.60 B. Z. . . . 405.28 Man . . . S.P. . Man . . . N. . 94.8 27.9 39.0 43.1 52.5 55.0 3 35 38.76 326 41.45 B. Z. . . . 405.28 Man . . . 8.P. . Man . . . N. . 46.6 6.2 0.5 14.0 33.4 339 0.36 3 31 19.80 B. Z. . . . 405.28 Man . . . S.P. . Man . . . N. . . 15.2 1.8 29.1 17.9 43.0 30.0 3 3329.10 3 37 15.90 B. Z. . . 405.28 Man . . . S.P. . Man . . . N. . . 22.5 58.1 36.5 13.1 90.1 25 0 3 39 36.37 3 43 11.55 B. Z. . . . 405.28 18.0 32.0 46.1 3 45 32.03 47' 3VO OPPOSITION OF MARS, 1849-50, 1>K« EMBER 37, 1-1 itiitui .l 47.1 55.1 0.5 7.0 3 51 46.83 4 8 53.05 9 37.030 9 39.595 9 38.119 —1.075 9.510 41 • | B. Z. . . . 405.98 Nut . . . 8 P. . Man . . . N 1.5 3.1 15.3 18.0 99.0 30.0 4 10 15.97 4 18 16.55 936.901 9 39.591 -• :;- :• I 1.918 9.694 44 41 46 B. Z. . . . 40S.S8 Man . . . 8 P. . Man . . . N. 35.0 38.9 38.0 M.I 59.7 e.o 4 9038.90 4 33 59.60 9 ^ilTO 9 39.440 1.110 3.449 47 48 !•' B. 2. . . . 405.28 Man . . . B.P. . Man . . . N . . 9.0 5-0 15.3 S0.8 99.0 33.0 4 36 15.43 4 30 19.00 9 36.941 -j B, --• 3 38.378 1.341 9.499 X 51 • B. Z. . . . 405.S8 Man . . . 8 P. . Man N. 98.7 43.1 47.1 57.0 4 39 49.93 4 37 45.49 937.899 9 39.530 9 38.430 993.93 0.978 I.1M S3 54 55 B. Z. . . . 405.9e Mara . . . S.P. . Man . . . N . . 58.0 8.6 19.3 33.0 31.0 4 40 9.53 4 43 17.51 0 ««.937 - '• - 939.960 9 38.058 9 94.11 1.496 MM 56 57 -.- B. Z. . . . 405.98 Man . . . S.P. . Man N 28.1 6.0 4S.5 39.1 56.0 33.7 4 44 43.53 4 47 19.85 9 38.933 339.168 S 38.033 335.03 1.195 9.397 59 80 61 B. Z. . . . 405.38 Man . . . 8 P. . Man . . . N . . 31.0 9.3 45.9 35.9 58.7 37.0 4 49 44 97 4 51 33.15 9 36.078 339.199 9 3B.009 335.13 1.154 9.990 09 63 64 65 86 B. Z. . . . 405.38 Man . . . 8.P. . B. Z. . . . 405.88 Man . . . B.P. . Man . . N. . . 34.9 94.1 50.0 48.3 31.3 4.1 118.0 1.7 18.0 39.9 4 53 48.07 4 56 37.91 4 58 4.03 5 1 95.71 936.915 I at.an •j • m 9 39.350 3 37.840 994.99 396.19 1.094 9.S77 i.m 67 ii. •/.. . . . 405.se 37.9 • • 5.0 5 351.10 339.800 -99538 —1.040 S.450 Ktmarki. a Brjrcted. The dome wai entirely open during Iticte comparison! ; nererthrlem, at limn they were quite unsatisfactory. A 8. Mean at chronometer times. MartB.P.-B. Z.40.VJ8 Mtr.N.P.-B.Z. 405.98 Twenty-two comparisons . Correction of chronometer . Twenty comparisons . . Correction of chronometer . h. m. •. 356 0.94 + 3 34.48 Hun — • A a. At. m. *. Ri'V. — 991.30 — 9.348 — 036". 09 0.00 — 0".01 m. s. Rev. — 991.95 — 1.114 h. m. s. 35541.88 + 3 34.48 —0 17". 52 A f 0.00 — 0".00 AT THE NAVAL OBSERVATORY, WASHINGTON. 371 DECEMBER 31, 1849. S Chron'r time of tradsit. . Mars — Star. Thermometers. fi Mann nf ...:..,» Micr. Bar 1 S; Object. A. B. C. - A a. A* Alt. Int. En. 9 6 8. 8. 8. b. m. s. Rev. s. Rev. Inches. • O • 1 Mara . . . S.P. . 19.1 35.0 47.0 3 21 33.05 2 37.875 30.330 72.0 31.0 14.0 g Mars . . . N. . . 2 36.023 27.0 3 B. Z. . . . 405.15 28 0 51.4 3 21 40.20 2 42.318 — 7.15 +6.296 4.443 4 Mara . . . S.P. . 55.8 10.9 23.0 3 29 9.40 2 37.650 5 Man . . . N. . . 2 35.960 6.061 6 B. Z. . . . 405.15 t 29.7 329 15 96 2 42.031 6.56 4.371 7 Mara . . . S.P. . 10.8 23.0 37.0 3 32 23.90 2 37.688 8 B. Z. . . . 405.15 17.2 30.8 45.0 3 32 31.00 2 42.012 7.10 4.324 9 Mara . . . N.P. . 33.7 49.2 0.0 3 35 46.85 2 35.739 X 10 B. Z. . . . 405.15 • • 54.8 8.0 3 35 54.98 3 42.320 8.13 6.481 11 Mare . . . S.P. . 2.9 18.5 29.7 3 38 16.30 2 37.550 19 B. Z. . . . 405.15 11.0 34.3 38.1 3 38 24.47 2 42.160 8.17 4.610 13 Mara . . . N.P. . 4C.1 3.5 15.0 3 41 1.55 2 35.942 14 B. Z. . . . 405.15 55.0 9.0 33.0 3 41 9.00 7.45 6.146 15 Man . . . S.P. . 8.3 24.0 35.7 3 44 22.no 2 37.636 16 B. Z. . . . 405.15 16.1 43.5 3 44 29.80 2 42.09-.! 7.80 4 456 17 Man . . . N.P. . 91.0 36.9 48.0 3 46 34.50 3 35.803 18 B. Z. . . . 405 15 29.1 49.5 56.0 3 46 42.53 3 41.843 8.03 6.041 19 Man . . . S P. . 39.1 44.3 55.8 3 48 42.45 2 37.279 20 B. Z. . . . 405.15 37.2 51.0 4.6 3 48 50.93 9 41.840 8.48 4 561 21 Mars . . . N P. . 16.1 32.0 4 6 29.70 935.563 S3 B. Z. . . . 405.15 36.3 39.5 53.0 4 6 39.57 2 43.081 9.87 6.519 33 Mara . . . 8.P. . 58.5 14.1 . 4 12 12.10 2 37.590 94 B. Z. . . 405.15 8.0 21.6 35.3 4 12 21.60 9 41.840 9.50 4.350 35 Man . . . S.P. . 14.0 29.3 40.7 4 23 27.35 9 37.305 26 B. Z. . . . 405.15 94.0 38.0 51.0 4 ••.: 37.66 3 41.750 10.31 4.445 27 Mara . . . N.P. . 9.1 94.0 4 34 32.70 3 35 eoi SB B. Z. . . . 405.15 19.1 33.0 46.0 434 32.37 2 41.587 9.67 5.786 29 Man . . . S.P. . 11.2 36.0 4 36 24.80 9 37.038 30 B. Z. . . . 405.15 31.0 34.8 48.5 426 31.77 2 41.592 9.97 4.554 31 Mara . . . N.P. . 9.5 24.8 4 29 23.10 3 35.6-20 33 B. Z. . . . 405.15 30.0 34.0 47.7 4 29 33.90 3 41 .384 10.80 5.764 33 Mara . . . S.P. . 47.2 . 14.5 4 39 0.85 9 39.793 34 B. Z. . . . 405.15 58.0 11.5 23.0 4 33 11.50 3 41.435 10.65 4.642 35 Mara . . . N.P. . 45.3 13.3 4 34 58.75 3 35.881 36 •B. Z. . . . 405.15 56.5 10.5 23.4 4 35 10.13 2 41.232 11.38 5.951 37 Mars . . . g.P. . 43.3 11.0 4 38 57.10 2 36 695 38 II. /. . . 405.15 54.3 8.0 21.5 4 39 7.93 3 41 345 10.83 4.650 39 Mara . . . N.P. . 30.8 . 49.2 4 41 35.00 2 35.471 40 B. Z. . . . 405.15 33.1 46.0 0.2 4 41 46.43 2 41.259 11.43 5.788 41 Mara . . . S.P. . 6.1 . 33.4 4 46 19.75 2 33.501 42 B. Z. . . . 405.15 17.5 31.5 45.0 4 46 31.33 2 41.099 11.58 4.598 43 Man . . . V.P. . 16.3 . 43.6 4 48 29.90 2 35.319 44 B. Z. . . . 405.15 37.9 41.5 55.6 4 48 41.66 2 41.011 11.76 5.692 45 Mara . . . S.P. . 0.8 . 98.0 4 51 14.40 2 36.598 46 B Z. . . . 405.15 12.2 36.3 39.7 4 51 36.03 2 41.120 —11.63 +4.522 OPPOSITION OF MARS, 1849-50. DEC KM II l-'.ll 31 , 1H49-CO ntlnnrd. 1 Chroo'r lime of inniit. Man- Star. [(., . Th •MM i •r«. Object. A. B. C. A«. Ad. Alt. lul. Ex. • * 47 « Man . . . N.P. . n. 7.. . . . 105.15 99.0 41.0 54.3 56 0 8.0 4 S3 43.50 4 5364.43 9 35.150 3 41.051 —11.93 +5.908 Remarks. Thne observation? nnsaiWaclnry. Tin1 planet and star blurre. 9.91 -f- Rev. 4.495 9'. 09 A f .... 0.00 + 0 .02 m. .... — 0 s. 9.51 + Rev. 6.036 32". 78 Ap 0.00 + 0".03 JANUARY 0, I860. I Chron'r time of transit. Mean of wires. Mier Mare— Star. Bar. Thermometen. | Object. A. B. C. joicr. A a. At Alt. Int. Ei. 1 4 a. a. a. h. in. a. R.'V. m. i. Rev. Inches. • • • i 1 Man . . . 8.F. . 11.8 97.1 39.0 95595.40 3 44.182 9 B. Z. . . . 523.15 33.0 36.0 49.5 9 57 36.17 9 36.419 —9 10.77 -7.7«3 30.349 77.0 91.0 1 Mm . . . 8.P. . 98.9 44.1 56.0 3 6 49.50 9 44.060 4 B. Z. . . . M3.15 40.3 53.5 7.0 3 853.60 936.113 9 11.10 7 947 5 Man . . . N.P. . 49.8 58.6 10.5 3 1056.65 942.598 6 B. Z. . . . 523.15 S4.7 8.9 91.5 3 13 8.47 936.139 9 11.82 6.459 7 Man . . . S.P. . S5.8 11.0 93.1 3 15 9.45 2 43.989 8 B.Z. . . . £93.15 7.3 91 4 34.8 3 17 21.17 9 35.959 9 11.79 8.030 9 MOT . . . N.P. . SO.O 5.3 17.9 3 19 3.95 •j «.M9 10 II. /.. . . . £93.15 9.7 15.7 99.0 3 9i 15. eo 9 35.982 9 11.85 6.647 11 Man . . . B P. . 5.0 91.3 33.0 3 ->:t 19.30 9 43.910 M B. Z. . . . 533.15 18.0 31.5 45.0 3 95 31.50 935.859 9 19.90 8.0JI H Mm . . . N P. . 15.8 31.3 43 0 3 97 99.40 9 49.653 14 B. Z. . . . .123.15 98.3 49.0 55.S 399 tl.93 933.761 9 19.53 (.899 15 Man . . 8.P. . 34.9 50.9 9.0 3 33 48.45 943.870 10 B. Z. . . . MS. 1.1 47.0 1.3 159 336 1.17 9 35.777 9 12.79 8.093 17 Man . . . H.P. . 54.0 9.9 91.8 338 7.90 a u.eis H II /. . . . 513.15 7.0 91.0 34.0 3 40 90.66 933.940 9 13.76 7.875 19 Man . . . N.F. . 30.8 45.9 57.9 3 .19 44.35 943.611 90 B. /..... 593.15 44.0 • • 19..'. 4 1 58.7.', 9 36.010 — 3 14.40 —6.601 AT THE NAVAL OBSERVATORY, WASHINGTON. 373 JANUARY 5, 1850— Continued. No. for reference. Object. Chron'r time of tiansil. Mean of wires. Micr. Mars — Star. Bar. Thermometers. A. B. C. A a. A J. Att. Int. Ei. 8. s. s. b. in a. Rev. in. a. Rev. Inches. • • • 31 22 Mars 8 P. 24.9 40.3 52.3 51.8 6.0 4 4 38.35 4 6 52.27 2 44.165 2 35.871 —2 13.92 —8.294 30.342 77.0 24.0 B. Z. . . . 523.15 23 Mare . . . N.P. . 18.0 33.2 45.5 4 8 31 .75 2 42.672 24 B.Z. . . . 523.15 31.9 46.3 0.3 4 10 46.17 2 35 920 2 14.42 6.752 25 Man . . . B.P. . 48.7 3.5 16.2 4 13 2.45 2 43.860 26 B.Z. . . . 5-23.15 a. s 16.0 4 15 15.97 2 35.791 2 13.52 8.609 27 Mars . . . N.P. . 39.2 54.2 6.0 4 16 52.60 2 42.649 28 29 30 B. Z. . . . 523.15 Man . S.P. 54.1 20.9 36.0 7.5 36.2 49.5 48.0 4 19 7.47 4 23 34.45 4 25 49.47 2 35.802 2 43.933 2 35.728 2 14.87 2 15.02 6.^17 8.195 B. Z. . . . 523.15 31 Mara . . . N.P. . 16.0 31.0 43.0 4 27 29.50 2 42.521 33 B.Z. . . . 523.15 30.1 44.0 • • 4 2943.97 2 35.611 2 14.47 6.910 33 Kara . . . S.P. . 18.9 34.3 47.1 4 31 33.00 2 43.185 34 B.Z. . . . 523.15 34.3 48.0 • • 4 33 47.97 235.640 2 14.97 7.545 35 Mara . . . N.P. . 3.9 19.3 31.3 4 36 17.60 3 42.691 35 B. Z. . . . 523.15 90.0 33.5 4 38 33.47 9 35.657 2 15.87 7.034 37 Mara . . . S.P. . 12.2 27.3 39.0 4 40 25.60 2 43.942 38 B.Z. . . 5S3.15 27.5 41.3 • • 4 42 41.27 2 35.701 2 15.67 8.941 39 Man . . . N.P. . 11.3 96.3 38.2 4 44 94.70 2 42.157 40 41 42 B. Z. . . 523.15 Mara . . . S.P. 26 5 21.2 38.0 41.0 36.7 51.2 49.1 4 46 40.97 4 49 35.15 4 51 51.17 2 35.490 2 43.819 2 35.506 2 16.27 9 16.02 6.667 8.313 B. Z. . . . 523 15 43 Man . . . NP. . 56.5 11.8 24.0 4 54 10.25 2 42.535 44 B. Z. . . . 5S3.15 53.0 • • • • 4 5626.72 . . . 45 Mare . . . N.P. . 56.8 12.0 24.0 5 0 10.40 2 42.405 46 B. Z. . . . 523.15 14.0 • • 41.0 5 2 27.50 2 35.440 3 17.10 6.965 47 Mara . . . S.P. . 30.0 45.0 57.0 5 49 43.50 2 43.128 48 B. Z. . . . 523.15 48.5 3.0 • • 5 52 3.97 2 31.751 49 Mara . . . N.P. . 21.9 37.2 49.3 5 54 35.60 2 41.843 50 B. Z. . . . 523.15 40.2 54.0 • • 5 56 53.97 2 31.912 2 18.37 6.930 51 Mars . . . S.P. . 43.0 58.3 10.0 5 5856.50 9 43.142 52 n. Z. . . . 523.15 1.2 14.5 28.2 6 1 14.63 2 34.912 2 18.13 8.230 53 Mara . . . N.P. . 48.0 ||. 15.3 6 4 1.65 2 41.707 54 B. Z. . . . 523.15 7.0 21.0 • • 6 6 20.97 2 35.039 —2 19. 33 —6.668 Remarks. Night mifity : ittar of comparison indistinct. Between the observations of December 31 and January 5, the chronometer was set forward 4 in. A 6. Results. Mean of chronometer time. Mars — * A a. AS. h. m. s. in. 8. Rev. Mars S. P.— B. Z. 523. 15 . . Thirteen comparisons . . 4 238.35 —213.73 — 7.937 Correction ofchronometer . —1 3.10 2' 2". 00 A f> — 0".04 h. m. s. m. >. Rev. Mars N. P. — B. Z. 523.15. . Twelve comparisons . . 42548.43 —215.11 — 6.783 Correction of chronometer . —1 3.08 1' 44". 25 Af> — 0".03 OPPOSITION OF MARS, 1849-60, JANUARY O, 1880. J Chron'r line of lrmn.it. Mara-Sur. Tbenooai«ten.\ " -; Object. A. B. C. A«. Aj. All. Int. Ex. : t i RAW J . ... • • • i • nil •• •CTt 1 .:' . 1' -- i Man . . . N.P. . 55.1 10.9 99.8 963 8.95 955.391 30.184 78.0 33.0 • B.Z. . . . 383.15 54.3 M 93.0 959 8.10 1 03.939 —559.15 -89.603 3 Man . . . S.P. . 15.1 30.9 43.1 3 1 39.10 9 56.77:1 4 B.Z. . . . 533.15 15.9 99.0 43.0 3 7 28.73 1 63.064 5 59.63 93.866 8 Mara . . . 8.P. . 1.8 16.9 98.9 3 11 15.35 956.668 • B.Z. . . . 533.15 9.0 15.0 39.0 3 17 15.33 1 63.145 559.96 93.674 7 Mara . . . N.P. . 43.9 57.5 9.1 3 18 55.65 9 55.545 8 B.Z. . . . 533.15 43.9 10.3 3 94 56.75 1 63.933 6 1.10 23.474 9 Man . . . 8.P. . 33.1 48.3 0.9 3 96 47.00 356.683 10 B. Z. . . . 583.15 34.1 47.3 1.5 3 33 47.63 1 63.110 6 0.63 93.703 11 Man . . . N.P. 9.4 18.0 30.3 3 as Id Ml 9 55.6.11 • B.Z. . . . 523.15 3.7 17.0 31.0 3 41 17.23 1 63.480 6 0.93 93.303 13 Mara . . . B.P. . 13.9 98.1 40.7 3 4496.95 956.683 H B.Z. . . . 533.15 15.5 99.0 49.8 35039.10 : , . • 6 9.15 33.434 15 Man . N P 31.1 46.3 58.7 .1 .u 41 an 9 55.703 18 B.7.. . . . 533.15 33.7 47.0 0.8 4 0 46.83 1 63.138 6 1.93 23.738 17 Mara . . . 8.P. . 98.7 44.1 56.3 4 19 49.45 3 56.857 18 B.Z. . . . 0)3.15 30.9 45.0 59.1 4 18 45.00 1 63.371 6 9.55 23.737 19 Man . . . \.P. . 0.9 15.3 37.7 4 31 13.95 • B.Z. . . . 533.15 3.0 16.5 30.0 4 97 16.50 1 63.979 6 9.55 MUM 31 Man . . 8.P. . 35.8 41.0 53.5 4 29 39.65 958.7H) • U.7.. . . . 543.15 39.1 43.0 . . 4 35 43.91 1 63.365 6 3.26 33.666 H Man . . . N P. . 47.1 3.4 14.7 4 40 0.90 9 55.710 94 B.Z. . . . 533.15 49.7 3.6 If .0 4 46 3.77 1 63.190 6 9.87 22.671 • Man . . . B.P. . 3.3 18.3 30.9 5 16 16.70 3 59.301 98 B.Z. . . . 533.15 7.1 91.3 35.0 59231.13 1 68.010 6 4.43 28.441 V Man . . . N.P. . 90.1 3C.O 48.1 5 95 34. 10 958.193 98 B.Z. . . .533.15 94.0 39.0 53.0 5 31 38.66 1 65.341 —6 4.56 -93.939 Remarks. Thf night mimy ; ilnr of comparison •carcrly visible. A 7. Results. Mean of etmmoiiwtrr IIIIH>«. Mare — « ManB. P.— B. 7.593.15 >N.P.— B.Z.M.18 Seven comparUonf . . . Common ofchrononiiiirr Seven compariftoni . h, :: m. n. 54 39.60 . . . . m. . —6 An. B, 0.37 Ad. Rrv. — 93.644 • 54.90 . . . . — 6 3". 44 & f • • 0.00 — 0".ll ii. ! m. i. 1 16.39 . . . . m. 6 a, 1.73 R,-v. — 93.638 54.20 . . . . 5' 47". 98 A» . 0.00 — 0".10 AT THE NATAL OBSERVATORY, WASHINGTON. 375 JANUARY 13, 185O. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Mars — Star. Bar. Thermometers. A. B. C. A a. A J. Alt. Int. Ex. s. s. , h. m. 8. Rev. m. s. Rev. Inches. • • • 1 B. Z. . . . 396.4 0.8 14.0 28.1 2 38 14.30 2 35.931 +6 30.05 +5.012 29.950 75.0 41.5 2 Mara . . . S.P. . 30.8 46.1 57.9 2 44 44.35 2 30.919 3 B.Z. ... 396.4 50.0 4.2 17.9 2 46 4.03 2 35.856 4 Mara . . . N.P. . 20.0 35.1 47.0 2 53 33.50 2 29.919 5 B.Z. ... 396.4 3.2 17.1 31 0 2 54 17.10 2 36.080 6 29.30 4.900 . 6 Mare . . . S.P. . 33.1 48.1 59.7 3 0 46.40 3 31.180 7 B.Z. ... 396.4 98.7 49.0 55.7 3 3 42.13 2 36.063 8 Man . . . N.P. . • • 12.5 34.3 3 9 10.79 2 29.872 9 B.Z. ... 396.4 54.9 8.0 21.9 3 11 7.80 2 36.061 6 28.20 4.840 10 Mara . . . S.P. . 33.0 38.1 50.0 3 17 36.00 2 31.221 11 B.Z. , . 396.4 54.0 7.0 20.8 3 21 7.27 2 36.189 6 28 28 4.831 13 Mara . . . 8.P. . 23.1 37.1 49.0 3 37 35.55 2 31.358 13 B. Z. . . . 396.4 26.3 40.0 53.8 330 40.03 2 36.181 14 Mara . . . N.P. . 53.9 9.1 21.3 3 37 7.60 2 30.333 15 B. Z. . . . 396.4 9.3 22.3 36.2 3 39 22.57 2 36.995 6 27.33 4.966 16 Mara . . . S.P. . 35.8 51.0 4.0 3 45 49.90 2 31.959 l 17 B. Z. . . . 396.4 44.3 57.9 11.2 3 47 57.76 2 36.340 18 Mara . . . N.P. . 19.9 97.9 39.8 3 54 26.35 9 30.449 19 B. Z. . . . 396.4 43.5 57.7 11.0 3 56 57.40 2 36.468 6 37.65 4.766 20 Mara . . . 8.P. . 11.9 26.2 38.9 4 335.05 2 31. 70S 31 B. Z. . . . 396.4 34.2 48.3 2.0 4 5 48.17 2 36.407 29 Man . . . N.P. . 1.8 16.9 29.0 4 12 15.40 3 30.629 23 B. Z. . . . 396.4 41.3 55.9 8.7 4 13 55.03 9 36.411 6 97.07 4.631 24 Man . . . 8.P. . 8.9 23.5 36.0 4 9022.10 9 31.790 25 B.Z. . . . 396.4 47.4 1.3 15.3 433 1.33 2 35.730 28 Mara . . . N.P. . 14.8 30.9 42 3 43928.55 3 29.839 97 B Z. . . . 396.4 9.5 16 0 29.7 4 43 16.07 3 35.635 +6 26.58 +4.676 38 Mara . . . 8 P. . 39.1 43.5 56.9 4 48 43.65 2 30.959 Remarks. Planet blurred. Interrupted by clouds, continuing the rest of the night. A 8. Man S. P. -B. Z. 396.4 Mara N.P. —B.Z. 396. 4 Results. Mean of chronometer time. h. m. s. Eight comparison. . . . 3 40 55.35 Correction of chronometer — 45.67 h. m. !••. 8il comparison. .... 3 42 30.36 Correction of chronometer — 45.67 ic. Mars A a. m. s. . . . . + 6 28 06 — * Rev. 4 701 4. I/ 12" 26 4. 0".02 m. f. +6 38.12 4. Rev. 5 906 30" 78 Ap , 0.00 4- 0».03 878 OPPOSITION OF MARS, 1849-50, JAJfl-ARY 14, 1850. $ 6 Ofcject. Cbron'r lime of traniit. Meaa of wires. Micr. Man— Star. Bar. Thermometer*. A. B. C. A«. At An. Int. Ei. a. a, a. h. m. «. Rev. m. •• Her. Inches. • • • 1 B. Z. . . . 396.4 0.3 19.7 97.1 4 10 13.37 3 3S.009 +5 16.33 —3.439 30.320 69.0 33.0 19.0 1 Man . . . 8 P. . 16.9 31.4 43.0 4 15 99.60 9 36.441 3 B. Z. . . . 3B6.4 98.4 40.5 54.3 4 17 40.40 9 34.611 5 15.35 9.310 1 Mara . . N.P. . 49.3 SB.O 9.0 4 99 55.65 9 36.931 1 B. 7. . . . 398.4 19.1 98.0 40.0 4 3298.03 9 97.066 5 15.59 3.733 8 Mara . . . 8.F. . 97 9 43.1 55.9 4 37 41.55 9 30.789 7 B. Z. . . . 398.4 96.9 39.9 53.5 4 4039.63 | H -:, , +5 14.97 —3.349 8 Man . . . N.P. . 41.9 57.9 8.0 4 4554.60 •j M 1 •:< Remarks. Night very unfavorable. A 6. Mar* S. P. -B, 7. 396.4 Mara N. P. -B. Z. 396.4 Results. Mean of chronometer lime. b. m. s. Two comparisons . . . 4 26 35 37 Correction of chronometer — 37.94 h. m. -. Two compamons . . . 43495.13 Correction of chronometer — 37.93 Man — • At. ra — • At m. s. Rev. . . + 5 15.87 — 3.577 — 0- 54". 96 A j> . . . . . 0.00 — o-.oa m. •. Rev. , . +5 15.11 — 9.399 — W 35". 80 A» , 0.00 — 0".01 JANUARY 10. 1850. ! Object. Chrnn'r time of transit. Mean of wires. Micr. Mara— Star. Bar. TlH-rmometers. A. B. a A., A*. Alt. Int. Ex. s. s. - b. m. a. Rev. m. •. Rev. Inches. • • • 9 Man . . . N.P. . B. Z. . . . 405.6 . 9.3 10.0 94.3 37.0 37.5 9 49 93.15 * 53 93.93 1 40.676 3 30.638 —4 0.80 4 0.80 +90.113 30.96 77.0 30.0 3 4 Man . . . B.P. . B. Z. . . . 405.6 . 33.0 33.0 48.9 47.0 0.0 9 55 46.50 9 59 47.00 1 43.018 9 30.438 -4 0.50 +18.561 Remarks. Floating cloud-. Star of comparison scarcely visible. A 7. AT THE NAVAL OBSERVATORY, WASHINGTON. 377 JANUARY 33, 1850. t Chron'r time of transit, i Mars — Star. Thermometers. No. for referem Object. Mean of wires. Micr. Bar. A. B. C. A a. Ad. Alt. Int. Ex. 8. •• , It III. 8. Rev. in. s. Rev. Inches. • • • 1 Mars . . . S.P. . 29.2 | 44.8 56.7 3 0 42.95 j 2 37.022 30.10 73.0 36.0 9 B. Z. . . . 405.6 . 9.5 23 4 3 5 9.45 2 46.031 —428.50 + 9.009 3 Mara . . . N.P. . 56.8 12.3 21.1 3 7 10.45 2 35.8SO 4 B. Z. . . . 405.6 . 22.2 37.5 • • 3 11 37.45 .940 2 46.015 .960 427.00 10.088 5 Mars . . . S.P. . 53.0 8.2 20.6 3 13 6.80 2 36.870 6 7 8 B. Z. . . . 405.6 . Mars . . . N.P. 19.0 13.2 33.0 28.5 53.0 47.0 41.1 7.2 3 17 33.00 3 19 27.15 3 23 52.95 2 46.001 2 36.030 .838 2 16.001 .920 4 26.20 4 25.80 9.131 9.900 B. Z. . . . 405.6 . 9 Mars . . . 8.P. . 39.8 54.4 7.0 3 25 53.40 2 36.693 10 B. Z. . . . 405.6 . R.O 19.7 33.2 3 30 19.63 2 45.921 4 28.23 9.029 11 Mara . . . N P. . 58.0 13.3 35.5 3 32 11.75 2 35.960 u 13 14 B. Z. . . . 405.6 . Mara . , . S.P. . 24.2 0.0 35.1 38.3 14.8 40.3 52.0 37.0 3 36 38.13 338 13.50 3 42 40.10 2 45.973 237.032 2 46.060 4 26 38 4 28.60 10.013 9.030 B. Z. . . . 405.6 . IS Mara . . . S.P. . 57.7 13.9 25.1 3 44 11.40 2 37.002 18 B. Z. . . . 405.6 . 34.0 38.0 • • 3 48 37.90 2 46.009 4 26.50 9.007 17 Mars . . . N.P. . 38.3 43.3 55.3 3 50 41.70 2 36.C38 18 19 30 B. Z. . . . 405.6 . Mara . . . S.P. . 54.3 53.0 19.3 8.2 7.0 33.0 19.0 3 55 8.10 3 57 5.50 4 1 33.90 346.039 2 37. 119 2 46.149 4 26.40 4 27.40 10.001 8.950 B. Z. . . . 405 6 . 21 Mara . . . N.P. . 26.5 41.3 54.1 4 3 40.30 2 36.091 33 B. Z. . . . 405.6 . 53.0 6.0 • • 4 8 5.90 2 46.120 4 25.60 10.029 23 Mara . . . S.P. . 36.1 51.3 3.5 4 16 49.80 2 36 908 24 B.Z. . . . 405.6 . 2.5 16.2 4 21 16.10 2 45.865 4 26.30 8.957 25 Mara . . . N.P. . 47.2 2.3 15.0 423 1.10 2 36.059 26 B Z. . . . 405.6 . 14.1 38.1 41.3 4 27 27.83 3 45.867 4 26.73 9.808 37 Mars . . . S.P. . 47.1 1.5 15.0 4 30 1.05 2 36.771 38 29 30 31 33 B. Z. . . . 405.6 . Mara . . . N.P. 14.1 13.7 40.0 27.1 53.0 38.3 38.9 54.1 43.3 7.3 41.5 41.3 7.5 54.3 31.0 4 34 27.96 4 37 27.50 4 43 53.86 4 44 40.65 4 49 7.06 3 45.699 3 35.916 3 46.221 2 36.900 2 45.710 4 26.91 426.36 . 4 28.41 8.928 10.305 8.810 B. Z. . . . 405.6 . Man . . . S.P. . B. Z. . . . 405.6 . 33 Man . . . N.P. . 11.2 35.3 38.1 4 51 24.05 2 35.776 34 B'. Z. . . . 405.6 . 37.3 51.0 5.0 4 55 51.06 2 45.616 4 36.41 9.840 35 Mara . . . N.P. . 31.0 46.3 59.0 5 35 45.00 3 42.701 35 B. Z. . . . 405.6 . 56.5 11.0 34.0 5 40 10.50 3 53.400 4 25.50 9.699 37 Man . . . N.P. . 30.4 45.3 56.5 5 43 43.45 3 43.780 38 B. Z. . . . 405.6 . 56.5 10.5 33.5 5 48 10.16 3 52.038 4 36.71 9.258 39 Mara . . . S.P. . 1.8 17.2 38.9 5 51 15.35 2 43.971 40 B.Z. . . . 405.6 . 37.6 51.0 5.0 5 55 51 .20 2 52.650 4 25.85 8.679 41 Mara . . . S.P. . 25.0 40.3 53.0 6 3 39.00 2 43.892 43 B. Z. . . . 405.6 . 52.0 6.2 19.3 6 8 5.80 3 52.528 —4 26.80 +8.636 48 S78 OPPOSITION OF MARS, 18-19-50, JANUARY »», 1850-Contlnued. Results. Mean of chronometer tinea. Man 8. P. -8. Z. 405.6 Man N. P. -B. Z. 405.6 b. m. i. 4 13 11.85 . . . A a. m. i. . . —486.58 A*. Rev. + 8.994 81.33 ... •f-81 17". 17 Ap . . h. m- «. 4 18 87.31 . . . . . 0.00 m. a. . . 4 36.39 + 0".04 Rev. + 9.894 21 93 . . . . + 2' 32". 08 An . 0.00 4. 0/'.04 JAXrARY 39, 189O. £ 4 Object. Chron'r time of transit. Mean of wim. Micr. Man— Star. Bar. Thermometer*. A. B. C. A a. A a. Alt. Int. Ex. i. a. a. h. m. t. Rev. t. Rev. Inches. • • • 1 Man . . . 8.P. . 58.1 13.1 85.7 3 3 11.90 3 34.398 30.400 73.0 a B. Z. . . . 405.6 . 98.9 40.3 53.7 3 5 40.07 396.809 —328.17 —7.589 3 Man . . . N.P. . 98.1 43.0 55.0 3 8 41.55 2 33.328 4 B. Z. . . . 405.6 . 56.1 10.0 84.0 3 19 10.03 2 SB-"5* • '. :.. 3 28.48 6.852 5 Man . . . 8.P. . 80.0 35.3 48.3 3 14 34.10 234.293 6 B. Z. . . . 405.6 . 48.5 2.1 16.1 3 18 3.23 .699 .; • , i .701 328.13 7595 7 Man . . . N.P. . 86.1 41.0 53.3 3 19 39.65 2 33.367 8 B. Z. . . . 405.6 . 54.1 21.0 3 83 7.55 .630 2 28.575 .599 337.90 6.766 9 Man . . . 8.P. . 41.3 56.0 7.9 32554.55 2 34.768 10 B. Z. . . . 405.6 . • • 99.0 • • 33922.00 .743 .578 337.45 8.113 11 Man . . . N.P. . 8.0 83.3 35.5 3 32 21.75 2 33.149 18 B. Z. . . . 405.6 . 36.0 51.0 • • 335 51.00 .538 I U.I 10 .639 -339.35 —6.543 13 Man . . . 8.P. . 42.9 57.79 10.08 35656.49 3 30.010 14 B. Z. . . . 405.6 . 10.9 34.88 38.45 40034.74 393.501 15 Man . . . N.P. . 17.95 33.83 46.29 4 3 32.13 * 38.870 16 B. Z. . . . 405.6 . 45.33 58.79 13.31 4 6 58.81 _• • •:. • 17 Man . . . P.P. . 49.3 4.3 16.5 4 57 2.85 18 B. Z. . . . 405.6 . • • 39.7 43.5 5 039.70 321.729 Remarks. The tirawi of the hut three comparimnt are by rbmnognph, A R. Results. M«*«n of chronometer timr*. Man 8.P. -B. Z. 405.6 Three comparison) Correction of chronometer h. m. i. 3 14 13.58 — 19.86 Mara — t A a. A i. m. «. Rev. — 377.98 — 7.765- . . . . -1'59 '.39 — 0".04 h. m. •. ManN.P.—B.Z. 406.6 . . Three comparison 39014.31 Correction of chronometer . . — 19.88 m. •. - 3 28.54 Rev. — 6.654 - V 42",98 — O'.OS OPPOSITION OF MARS, 1851-52. NAVAL OBSERVATORY, WASHINGTON. DECEMBER 17, 1851. Tbe planet restless and indistinct — no observations possible. DECEMBER 23, 1851. The difference of temperature between the exterior and interior of Uie dome (all the doors and windows being open) renders the stars so blurred and indistinct as to make observations impossible. DECEMBER. 36. 1851 . No certain contact with the wire could be made within half a revolution of Die micrometer. JANUARY 7, No observations possible. JANUARY •; 1. 1853.* No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Mare — Star. Bar. Thermometers. A. B. C. A a. Ad. Att. Int. Ex. 8. a. a. h. m. s. Rev. m. a. Rev. Inches. o • a 3 B.Z. . . . 344.32 Man . . . 8.P. . 5.1 15.0 19.3 38.5 33.1 41.8 9 41 18.80 9 43 28.43 1 36.698 3 36.749 +1 10.63 —30.142 30.380 73.0 30.0 30.0 3 4 B.Z. . . . 344.33 Mara . . . N.P. . 1.3 11.3 15.0 34.7 38.5 38.0 9 44 14.93 9 48 34.67 1 36.838 3 33.553 1 9.74 28.805 5 6 B.Z 344.33 Mara . . . 8.P. . 19.3 99.0 33.0 43.0 46.8 55.0 9 47 33.00 9 48 42. 00 1 36.690 3 37.032 1 9.00 30.233 7 8 'i 10 B. Z. . . . 344.33 Mars . . . N.P. . 54.0 6.7 16.0 8.0 16.3 91.0 39.0 22.4 29.2 9 49 7.23 9 50 16.00 10 8 8.47 10 9 16.13 1 36.938 3 35.491 1 36.982 3 36.358 1 8.77 1 7.66 28.644 29.467 B.Z. . . . 344.33 Mara . . . 8.P. . 55.0 3.0 11 12 B.Z. . . . S44.32 Mars . . . S.P. . 39.9 47.0 53.0 1.0 7.2 14.3 10 10 53.13 10 12 0.77 1 35.831 3 36.192 1 7.64 29.453 13 14 B.Z. . . . 344.32 Mara . . . 8.P. . 59.0 5.0 19.5 19 1 96.0 10 14 5.43 10 15 13.50 1 38.946 3 36.398 +1 7.07 —29.543 • All the comparisons at this opposition of Mars are taken with mean time chronometer 2019, Dent. 880 OPPOSITION OF MARS, 1851-52, JA5I-ARY «4, 18Sa-Co»Unued. I Ctvon'r time of traniit. Micr Man— 8ur. Bar Thermometer*. OHM. A. B. C. Am. At Alt. Int. Ex. A a I. >. b. m. a. Her. at. a. Rev. locbn. • • • IS B. Z. . . . 344.33 98.9 J9.a 53.9 10 16 39.53 1 36.936 + 1 6.54 -38.335 30.380 73.0 30.0 30.0 16 MM* N.P. 33.0 46.3 59.0 10 17 46.07 3 35.070 17 B. Z. . . . 344.33 46.0 59.3 13.1 10 96 59.43 1 36.883 1 5.87 99.350 18 M»n . . . 8.P. . B.I 5.0 19.0 10 28 5.30 3 36.141 19 B.Z. . . . 344.33 B.t 39.0 53.0 10 39 39.07 1 36.040 1 0.30 M.W • Man . . . N.P. . 32.0 45.1 59.0 10 30 45.37 3 34.869 11 B. Z. . . . 314.39 39.0 45.9 59.1 10 33 45.43 1 37.010 1 4.40 39.313 83 Man . . . 8.P. . 37.5 51.0 4.0 10 3354.83 3 36.232 23 B.Z. . . . 3U.31 11.0 34.0 38.0 10 3534.33 1 36.943 +1 5.60 —37.900 M Man . . . N.P. . 16.5 99.8 43.5 10 3639.93 3 34.759 Remarks. Planet induiict and biasing. A B. Results. Mean of cbrouometer liniea. h. m. a. Man 8. P. — B. Z. 344. 39 . . g^ven comparisons . . . 10 956.57 Correction of chronometer . + 13.53 A A a. m. a. + 1 7.47 + 0.19 Man -< *f 0.00 — h. m. a. Man N. P. —B.Z. 344. 33 . . Five comparison. . . . .1019 8.41 Correction of chronometer . + 13.53 + 1 7.39 + 0.19 A A R.-V. 99.643 7' 35" .67 O'.U Rcr. 38.321 Ap 0.00 — 1.1 '.33 0".13 JANCARY «6, 1859. £ Chron'r time of tranalt. Man-Slar. Thertnnmeten. 5 M • .Hi-! V\ ' rr • Mirr. Bar. Object. A. B. C. A.. Ait. Alt. ' Int. Ex. 0 a. a. a. h. m... Re». a. Her. Incbei. • • • * i , Washington . O. . 30.9 . 57.1 994 43.65 I •:<.».! +14.95 +31.440 30.950 75.0 44.5 39.0 3 Man .... 8.P. 44.5 • • 11.3 9 94 57.90 334.186 3 Washington . O. . 4.9 . 31.9 996 17.70 499.749 14.55 •JM 4 Man .... N.P. 19.9 • • 45.3 996 33.95 933.099 5 Washington . O. . 3.7 , . 30.3 9 35 16.95 4 99.883 13.50 91.555 « Man .... 8.P. 17.9 • • 43.7 93530.45 9 34.193 7 Waahiogtnn . 0. . 11.4 . 38.0 9 37 94.70 : H ;--.' 13.95 •JH • Man .... N.P. 94.7 • • 51.9 99737.95 339.963 9 Wellington . O. . 47.9 • > . . 939 0.57 4 99.928 13.48 31.774 10 Man .... 8.P. 1.0 • • 37.9 939 14.45 3 34.018 11 Washington . O. . 1C.9 , , , , 9 40 99.57 4 39.830 + 13.98 +99.934 U Man .... N.P. (0.7 • • 580 94049.85 9 39.7(0 AT THE NAVAL OBSERVATORY, WASHINGTON. 381 JAXVARY it6, 1858— Continued. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Mars— Star. Bar. Thermometers. A. B. c. An. ** Att. Int. Ei. 8. 8. s. h. m. s. Rev. 9. Rev. Inches. • • a 13 Washington . O. . 58.4 , , 25.2 9 44 11.80 4 29.798 +13.30 +21.665 30.950 75.0 44.5 36.0 14 Man .... S.P. 13.0 • ' 38.2 9 44 95.10 2 33.997 15 Washington . O. . 34.1 . . 51.0 9 45 37.55 4 29.738 13.05 22.932 16 Man .... N.P. 37.9 4.0 9 46 50.60 2 32.670 17 Washington . O. . 45.1 . . 11.3 9 51 58.30 4 29.768 19.50 21.754 18 Man .... S.P. 57.3 ' ' 94.9 9 52 10.70 2 33.878 19 Washington . O. . 27.3 , , 54.3 9 54 40.75 4 29.760 11.90 23.024 90 Man .... N.P. 39.1 • ' 6.2 9 54 52.65 2 32 600 / 21 Washington . O. . 7.0 . , 34.0 9 10 20.50 4 29.895 11.45 22.244 99 Man .... S.P. 19.0 ' ' 44.9 9 10 31.95 2 33.520 23 Washington . O. . 48.0 , . 13.0 9 15 59.50 4 99.987 11.07 93.650 34 Man .... N.P. • • 24.0 9 16 10.57 2 32.201 25 Washington . O. . 19.9 . . 46.0 9 17 32.80 4 29.903 11.07 22.389 26 Man .... S.P. • • 57.1 9 17 43.67 2 33.378 27 Washington . O. . 93.0 . . 48.3 9 19 35.15 4 30.093 9.92 23.618 98 Mare .... N.P. • • 58.5 9 19 45.07 9 32.269 99 Washington . O. . 6.0 . , 33.1 9 92 19.55 4 29.849 10.55 22.102 30 31 S Mars .... S.P. Washington . O* * 17.3 37 0 ' * 43.0 4 1 9 23 30.10 994 50.55 9 25 0.70 2 33.611 4 29.929 2 3-2.274 10.15 93.519 Man .... N.P. 47.9 ' ' 14.9 33 Washington . O. . 6.5 . , 33.0 9 39 19.75 4 29.939 8.85 22.585 34 Man .... 8.P. 15.9 • • 43.0 9 39 28.60 9 33.218 35 Washington . O. . 3.3 . . 38.3 9 42 15.30 4 99.917 +8.95 +23.843 35 Man .... N.P. 11.0 37.5 9 42 24.25 2 31.938 Remarks. Power 300. At the twenty-ninth observation the planet had become deformed and unsteady. The remaining comparisons are worthless. A 9. Results. Man B.P. — • w. O. Man N.P. — • W. O. Mean of chronometer times. Mars — • A a AJ h. m. s. 8. Rev. Nine comparisons . . . . 9 58 30.32 . . . . + 12.11 + 21 .945 Correction of chronometer . . + 52.43 Al . . + 0.03 + 5* 37". 32 A p ... 0.00 + 0".10 h. m. s. s. Ri-v. Nine comparisons . . . . 10 1 6.32 . . . . + 11.78 + 23.199 Correction of chronometer . . + 52.43 A< . . + 0.03 + S> 56". 60 A ... 0.00 JANUARY 27, 1853. B«for« star of comparison could be seen, the sky became clouded. ft 82 OPPOSITION OF MARS, 1851-52, JAM'ARY 30, 1859. j <"~ Chron 'r time of transit. Mean of wire*. Micr. Man— Star. Bar. Thermometen. A. B. C. A a. A i. Alt. Int. Ex. a. a. a. h. m. .. Rer. m. a. Rev. Inchea. • • • 1 9 3 4 5 7 8 9 10 11 19 13 14 15 16 •Anon 47.1 49.1 51.9 53.0 53.9 54.0 49.0 43.9 36.0 36.5 51.4 59.8 94.1 M.1 49.9 49.0 0.3 1.9 5.6 5.9 6.3 7.9 55.1 57.0 49.1 49.4 5.0 5.9 37.1 37.8 9.3 3.0 14.0 15.9 18.3 90.0 19.7 90.9 9.0 10.9 3.0 3.4 18.5 19.1 51.0 51.0 16.9 15.9 10 37 0.47 10 38 9.07 10 39 5.03 10 40 6.30 10 49 6.40 10 43 7.60 10 44 55.37 10 45 56.80 10 48 49.37 10 49 49.77 10 51 4.97 10 59 5.93 10 56 37.40 10 57 37.63 10 59 9.57 11 0 9.45 3 33.419 336.938 3 33.441 9 35.589 333.443 9 36.671 9 33.451 335.479 9 33.413 336.485 3 33.418 3 35.333 3 33.333 3 36.368 3 33.987 3 35.178 +1 1.60 1 1.90 1 0.40 +1 0.33 —3.519 3.338 3.073 -3.136 99.950 74.0 35.0 Man . . . . 8.P- •Anon Man .... N.P. •Anon. Man .... B.P. •Anon Man .... N.P. •Anon Man .... B.P. •Anon. .... Man .... N.P. •Anon Man .... 8.P. •Anon Man .... N.P. Remarks. Observations lad and interrupted by clouds. Man 8. P. — • Anon. Man N. P. — • Anon. Results. Mean of chronometer times. Mara • A a. A i. h. m. >. m. s. It.v. Pour comparison* . . . 10 47 9.97 . . +1 0.86 — 3.339 Correction of chronometer . + 53.84 At... . . + 0.16 — 49". 79 A 0 . . . . 0 00 — 0".01 h. m. t. m. a. Rev. Four comparison! . . . 10 49 38.87 .... + 1 0 88 — 1.994 Correction of chronometer . + 53.84 A ( . . . . + 0.16 — 30'' .65 A 0 . 0.00 — 0".01 FEBRUARY », 185!*. 1 Chron 'r time of tran.it. Mare-Star. Thermometen. . Micr Bar | Object. A. B. C. An. AJ. Alt. Inl. El. g 1 a. a. . a. h. m. a. Her. m. a. Rev. Inchef. • • • 1 Man . . . 8.P. . 31.9 44.9 58.1 9 15 44.73 9 46.330 30.150 75.0 39.0 9 B. Z. . . . 344.19 0.9 13.7 97.0 9 17 13.63 3 46.543 I • :o +0.313 3 Man . . . N.P. . 91.7 35.0 48.0 9 18 34.90 9 44.953 4 B. 7.. . . . 344.19 50.0 4.1 17.9 990 3.76 3 46.549 1 98.86 1.596 5 Man . . . N.P. . 11.9 BS.5 39.0 9 91 95.47 9 44.895 6 B. Z. . . . 344.19 41.0 54 1 7.5 999 54.90 946.498 -1 98.73 +1.603 AT THE NAVAL OBSERVATORY, WASHINGTON. 383 FEBRUARY Si, 1853— Continued. t Cbron'r time of transit. Mars— Star. Thermometers. V Mean of wires- Micr. Bar. 1 Object. A. B. C. An. A*. Alt. Int. Ex. s M i Rev. m. B. Rev. Inches. • • • 7 Mars . . . S.P. . 4.6 18.0 31.0 9 23 17.87 9 45.981 30.150 75.0 33.0 8 B. Z. . . . 344.19 34.0 47.7 1.0 9 24 47.56 3 46.503 —1 29.69 +0.521 9 Man . . . S.P. . 6.9 30.0 33.1 9 28 20.00 246.100 10 B. Z. . . . 344.19 36.0 49.0 3.0 9 29 49.33 3 46.500 1 29.33 0.400 11 Man . . . N.P. . 48.1 0.9 14.7 931 1.23 3 44.848 13 B. Z. . . . 344.19 17.2 31.0 44.0 9 32 30.73 2 46.578 1 39.54 1.730 13 Mara . . . S.P. . 35.0 48.1 3.0 9 34 48.37 3 45.968 14 B. Z. . . . 344.19 5.0 18.0 33.0 9 36 18.33 246.583 1 39.96 0^15 15 Mara . . . N.P. . 30.9 34.0 47.0 9 37 33.97 2 44.761 16 B. Z. . . . 344.19 51.0 4.0 18.0 939 4.33 2 46.587 1 30,36 1.836 17 Mara . . . S. P. . 3.9 17.0 31.0 9 54 17.30 3 45.655 18 B. Z. . . . 344.19 35.0 48.3 3.0 9 55 48.40 3 46.550 1 31.10 0.895 19 Mare . . . N.P. . 51.5 5.0 18.5 9 57 5.00 3 44.370 90 B. Z. . . . 344.19 36.5 49.7 95836.35 3 46.500 1 31.35 9.130 91 Man . . . S.P. . 33.9 46.0 59.0 9 59 45.97 9 45.550 99 B. Z. . . . 344.19 4.1 18.0 31.0 10 01 17.70 3 46.480 1 31.73 0.930 93 Man . . . N.P. . 37.0 40.5 54.0 10 9 40.50 2 44.256 94 B. Z. . . . 344.19 59.0 19.5 96.0 10 4 12.50 3 46.470 1 32.00 9.314 95 Mare . . . S.P. . 33.9 47.0 1.0 10 5 47.30 2 45.411 96 B. Z. . . . 344.19 7.0 30.0 33.0 10 7 90.00 2 46.468 1 32.70 1.057 97 Man . . . N.P. . 15.0 38.9 43.5 10 8 98.80 3 44.201 98 B. Z. . . . 344.19 48.0 1.0 15.0 10 10 1.33 3 46.480 1 32.53 3 279 99 Mara . . , S.P. . 27.2 39.7 53.0 10 11 39.97 2 45.341 30 B. Z. . . . 344.19 59.0 13.0 36.0 10 13 12.33 3 46.242 1 33.36 1.101 31 Mare . . . N.P. . 55.5 8.7 99.0 10 15 8.73 2 44.046 39 B. Z. . . . 344 19 38.0 41.0 55.0 10 18 41.33 3 46.419 —1 39.60 +3.365 Remarks. Towards end of observations planet becomes blurred and uncertain. A 8. MarsS. P. — B. Z. 344.19 ManN. P. — B. Z.344.19 Results. Mean of chronometer times. b. m. s. Eight comparisons . . . . 9 45 43.41 Correction of chronometer . +55.57 h. m. a. Eight comparisons . . . . 9 46 29.84 Correction of chronometer . +55.57 Mars — • m. s. Rev. — 1 30.72 + 0.729 A i . • . . — 0.25 + 11". 20 AP . . . 0.00 0".00 m. s. Rev. — 1 30.75 + 1.968 A t . . . . — 0.35 + 30". 25 Ap . . . 0.00 0".00 384 OPPOSITION OF MARS, 1851-52, KKHIU AHY 3, 185*. g Chron'r time of uanalt. Mat*— Star. Therm onttten. 1 Rnr k Object. A. B. C. *•. A*. ami- Alt. Int. El. 3 4m I t 7 8 1 10 11 19 13 U 15 18 17 18 19 90 91 99 93 94 Vcnui . . . 8.P. • 9 41.3 55.0 96.0 19.1 46.4 37.0 99.3 1 : 39.4 95.5 39.R 3.0 55.8 43.9 11.5 5.0 l.'.l 10.0 a. a 94.9 51.0 45.0 14.1 41.9 33.4 8.7 40.0 39.7 0.3 51.0 43.3 16.9 46.0 39.0 47.9 16.9 9.9 57.9 36.0 19.1 56.9 94.5 17.0 38.1 5.0 58.0 96.9 55.0 47.5 554 55.00 5 56 96.15 5 57 19.05 559 6.56 6 037.10 6 1 99.53 6 4 1.67 6 5 39.90 6 695.95 6 8 33.06 6 10 9.73 6 It 55.70 6 19 43.16 6 14 13.16 6 15 5.13 6 16 49.16 6 18 10.13 6 19 3.96 6 91 94.30 623 51.05 693 44.55 6 96 14.93 6 97 41.10 69833.45 9 37.338 9 43.950 3 30.371 9 34.670 9 43.300 399.799 9 36.014 943.459 398.909 9 33.960 3 41.V.H 397.950 3 33.753 9 39.771 337.UO 3 31.500 9 40.000 398.396 333.841 3 38.565 3 34.918 3 39.000 9 36.915 3 93.479 —1 31.15 1 30.54 1 99.53 1 29.87 1 39.00 1 37.97 -• . -.. —1 96.87 4-6.619 8.630 6.438 8.831 6.018 8.500 5.794 +7.915 H.H 79 0 55.5 49.5 •8 . . Vena. . . . N.P. • J 33.0 93.3 16.0 49.1 18.9 •8 Venui . . . 8. P. •9 •8 Venua . . . ' N.P. • 9 19.9 49.0 49.1 99.1 56.0 51.3 96.9 55.9 49.8 10.3 •8 Venus . . . 8. P. •9 •8 Vena. . . . N.P. •9 •8 Venus . . . 8.P. •9 • 8 Venua . . . N.P. •9 . . . • 0.4 37.1 • 8 t RemnrJcs. fai • dim, nnd planxl ninlcti:ii d timl blurred. A 6. a Tbe recorded reading here it corrected in the mean, it being evidently forty second* too large. Rftvltf. Mean 01* chronometer lime*. Ven* - . Venui B. P. - . VenniN.P. Four comjrtrisono . . . Uuitrc ion of chronometer Pour comparuonii . . . Correction of clironotiflrr A« Ait. ll. Dl. B. m. a. R,-v. 6 9 45.39 _ 1 29.13 4. 6.139 4- 39.46 Al .... — 0.94 4- 1' 34".96 Af . . . . + 0.03 1 0",59 ll 111 B. tn. B. Rev. 6 12 39.00 . . . 1 98.76 4. 8.469 + 39.46 Al ... — 0.94 1 .1 9' 10". 18 Af . . . . + 0.04 + 0".81 <>< TOllKH ii. 1 -.-,ll. No. for reference. Object. Chron'r time of umniit. Mean of wire.. Micr. Venui — Bur. Bar. Therroometera. A. R. C. A«. At. Alt. Int. Ex. *. i. •. h. m. -. R.v. a. Rer. Inclien. • • • 1 > Vtmu . . . N.P. • 99.9 36.9 509 96.5 5 44 36.90 5 45 19.56 9 41 Oat 9 59.419 -35.66 + 11.390 99.964 75.0 63.0 AT THE NAVAL OBSERVATORY, WASHINGTON. 391 OCTOBER 33, l«.->0-C'. * 9-2.0 S92 INTERIOR CONJUNCTION OF VENUS, 1850 — 51. OCTOBER 98, IR.IO-Conllniiril. 1 Cbron't lime of iramli. Mlcr Venus— Stir. Thermometer*. | Object. A. B. c. An. Alt. Int. Ex. A - •. l. h. m. i. Rer. •. Rer. Inrnw. • • • 5 Vcnu» . . . HP. is.i 30.0 5 56 99.98 9 3V 176 30.100 70.0 67.5 55.0 e * 95 S .18 4R.7I 1 -11 M2 2» 7.-| 93 473 7 Vrnu- . . . N IV •.« 47.0 0.9 5 58 46.93 3 33. 4G9 8 * 28 9 5 53 14.41 9 -11.310 97 48 21.106 9 Venns . . . 8.P. • i 3.0 34.0 6 1 90.07 3 34.340 1* • 1.0 6 1 47. SI 1 40 U63 37.14 33.335 11 Venus . . . N P. sa.o 6.0 19.9 6 3 5.73 2 31.678 19 • 46.5 6 3 32.71 1 40.419 —36.96 —21.908 Remarks. Night clear ami serene. Obsi rvn'.inns uns.imiHctory. A 8. Vtnm S. P. — • \>nuiN. P . Results. Menu nfchrouometer times. h. m. f. Threo comparison.-' .... 5 56 27.33 Coireciion of chrnnomner . -f- 23.98 Three coniparHoiifl . . . . ft 58 29.51 Correction <«" elirnnomvtcr . -f- 03.98 Vena a — • a. . . — 27.96 Rer. — 23.427 Al . . — 0.08 — 6 0 '.11 Af> . . — 0.1« — 2'. 11 8. . . — 87.65 Rev. — 21.101 A( . . — 0.08 — 5' 84" .25 OCTOBER 29, 1850. No. for reference. Chrnn'r time of transit. Mean of wires. Micr. Venns — Slur. Bar. Thermometers. Object. A. B. C. Am. A I Alt. Int. Ei. s. i. - b. m. i. Rev. •• K.'v. Inches. .« • • 1 3 4 S 6 7 8 18 Ve.us . . . f.f. . . •8 51.0 1.1.0 • • 551 &O.P2 5 55 14.81 :, :,; 5 57 45.16 • S8*.I6 6 9 15.80 6 3 IG.U.I 6 4 58.83 3 33.66-] 1 37.301 333.559 3 30.4*8 9 46.030 3 31.8:9 : i - • • —•31.no 21.31 —94.31 ;i7.13 +57.95 +56.369 '• .- i +5I.07S —15.806 —13.428 30.210 70.0 55.0 49.0 Venus . . . 8 P. 7.0 • 8 31.0 59.0 40.0 99.7 98.9 19.5 Venu. . . . N.P. 48.9 • 8 ,0 •9 15 16.9 18.9 19.0 Venus . . . 8. P. W.O • ( 43.0 Venns . . N.P. 43.9 Jiemarkf. - ntlons unssKsfwtgry. A 8. AT THE NAVAL OBSERVATORY, WASHINGTON. 393 NOVEMBER 1, 185O. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Venus— Star. Bar. Thermometers. A. B. C. A a. A A Alt. Int. El. s. B. d b. m. s. Rev. m. s. Rev. Inches. • • • 1 Venus . . . S.P. 47.1 1.0 15.2 528 1.10 2 33.199 30.210 70.0 62.0 59.0 2 Lacaille . . . 7371 33.1 47.0 1.3 5 30 47.13 2 51.562 —2 46.03 +18.363 3 Venus . . . N.P. 38.3 52.5 7.0 5 32 52.60 2 30.160 4 Lacaille ... 7371 23.5 38.3 52.1 5 35 37.96 2 50.945 2 45.36 20.785 5 Venus . . . S.P. 17.2 31.0 45.0 5 40 31.06 2 32.042 6 Lacaille . . . 7371 1.3 15.5 29.7 5 43 15.50 2 50.375 2 44.44 18.333 7 Venus . . . N.P. Lacaille ... 7371 56.9 40.7 55.0 25.0 8.9 5 46 10.95 5 48 54.53 2 28.975 2 49.862 2 43.58 20/687 9 Venus . . . S.P. 21.2 37.9 52 2 5 50 38.10 2 30.649 10 Lacaille . . . 7371 • • 21.7 35.5 S 53 21.65 2 48.838 2 43.55 18.189 11 Venus . . . N.P. 48.7 t . 16.8 5 55 2.75 2 27.247 19 Lacaille . . . 7371 31.9 45.9 59.7 5 57 45.83 2 48.077 2 43.08 20.830 13 Venus . . . S.P. 13.0 27.1 41.0 6 0 27.03 1 58.858 14 Lacaille ... 7371 55.0 9.0 23.0 6 3 9.00 2 46.937 2 41.97 18.921 15 Venus . . .N.P. 13.1 97.1 41.0 6 5 27.06 1 55.219 16 Lacaille . . . 7371 55.0 9.0 93.0 6 8 9.00 2 45.640 —2 41.94 | +20.563 Remarki. Brown haze. A 8. Venus S. P. — Lncaille 7371 Venus N. P. — Lacaille 7371 Results. Mean of chronometer times. h. m. s. Four comparisons .... 54454.32 Correction of chronometer . + 21.72 h. m. s. Four comparisons . . . . 5 49 53.34 Correction of chronometer . + 21.72 1. VflHlS — # A a. A I. m. s. Rev. . . . — 2 43.99 + 18.276 A( . — 0.45 -f. 4' 40". 92 Af> . + 0.07 + 1".37 m. s. Rev. . . . — 2 43.49 + 20.766 AC . — 0.45 4- Si 19". 21 NOVEMBER '•-. 183O. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Venus — Star. Bar. Thermometers. A. D. C. A a. A 1. Alt. Int. Ex. l. >. i. h. m. s. Rev. s. Rev. Inches. 0 • 0 1 2 3 4 5 e Lacaille . . . 7371 Venus . . . S.P. Lacaille . . . 7371 Venus ... N.P Lacaille . . . 7371 Venus . . , S.P. 2 39.001 2 30.392 2 39.000 2 27.379 238.839 229.771 . . . +8.669 11.621 +9.068 30.225 69.0 59.8 61.0 • • 20.0 5 2520.00 • • 40.0 • • 5 26 40.00 • • 90.0 5 27 20.00 50 :;',' I IMTUIOR CONJUNCTION OF VENl'S, 1850-51, NOVKHBKR a, 183O- Continued. 6 Object. OirmTr time of tran.it. Mean of wire*. Micr. Venu.— Star. Bar. Therm ometera. A. B. C. A*. fit. All. Int. Ex. a. a. - h. m. i. K.v. >. 11. v. Inches • • • 7 e Lacaflla . . . 7371 Venn. . . . N.P. 9 38.745 997.161 . . . + 11.584 30.935 69.0 59.8 61.0 . . 10.0 5 99 10.00 10 I.aeiille ... 7371 Venn. ... P. 13.9 33.9 97.0 47.9 41 3 1.3 530 97.16 5 30 47.90 . . . +20.04 11 Laeaille . . . 7371 53.5 7.7 91.5 539 7.56 • a • 90.47 19 Venu. ... P. 14.3 97.9 41.9 533 28 03 . . . 13 Laeaille . . . 7371 13.9 97.9 41.4 533 27.26 90.50 14 16 17 18 19 90 91 99 93 94 96 97 98 91 30 Venui ... P. Lacaille . . . 7371 Venu. . . . S.P. Lacaille . . . 7371 Veou. . . . N.P. Lac«ille ... 7371 Venn. . . . 8 P. 33.7 47.9 1.7 5 34 47.76 2 38.051 9 38.893 9 38.075 2 26.223 2 37.639 2 37.436 235.767 2 36.935 328.039 3 36.873 •-> H •-!-! . . . 9.239 11.853 9.008 11.669 8.906 11.591 9.071 11.633 • • 59.0 • • 5 3853.00 • • 5.0 • • 5 40 5.00 • • 49.0 • • 5 41 43.00 Venu. . . . N.P. Lacaille . . . 7371 • • 97.0 5 43 27.00 Venu. . . . e.P. I/icaillc . . . 7371 Venn. . . . N.P. 3.0 • • 5 46 3.00 7.0 • • 5 47 7.00 Venu. . . . S.P. Lacaille ... 7371 Vrnm . . . N.P. • • 40.0 • • 5 48 40.00 2 37.501 2 36.412 2 24.760 . . 6.0 • • 5 50 6.00 31 Lacaille ... 7371 57.1 11.5 94.9 5 59 11.16 . 93.51 33 Venu. ... P. 90.8 34.7 48.6 5 59 34.70 . . . 33 Lacaille . . . 7371 99.8 44.6 57.9 553 44.10 . 33.10 34 35 37 38 40 41 43 Venn. ... P. 53.1 7.3 91.9 5 54 7.30 2 35.483 2 26.498 2 35.199 1 HJH 9 95.971 2 34.585 293.331 . . . 8.985 11.500 8.916 +11.364 Venu. . . . S.P. • • 41.0 • • 5 55 41 00 Venu. . . . N.P. Lacaille . . . 7--71 • • 59.0 • • 55659.00 Vruu. . . . 8 P. Lacaille . . . 7371 Venn. . . . N.P. • • 17.0 • • 5 58 17.00 . . 59.0 . . 55853.00 43 41 Lacaille . . . 7371 Venn. ... P. 38.5 9.9 69.7 17.1 6.2 31.0 6 1 59.47 6 3 17.00 ' +94.53 \n 395 Ao Vt-ims — • A. ... +1 8.47 + &t. Rev. 18.735 At . . . . 4- 0.19 + 4' 47" .98 A f . . . 4. 0.07 4- !''.« m. >. ... +1 8.79 + Rev. 21.797 A/ . . . . . . + 0.19 + y 35". 06 A» . 4. 0.08 + 1".66 NOVEMBER 1O, 1880. 1 4 Object Chron'r lime of transit. Mean of wire*. Micr. Vrnu»— Star. Bar. Thermometer*. A. B. a A«. A 1. Alt. Int. Ex. •. l. i. h. m. i. Rev. m. *. Rer. Inches. • • • 1 a 3 4 5 • 7 8 t M 11 11 13 M r, 16 17 M 19 90 •8 39.8 5.9 S8.0 •J 95.0 53.1 49.9 53.1 19.0 9.7 37.0 39.9 C.O 7.5 33.1 94.1 50.9 55.7 19.9 18.9 46.0 40.3 10.0 50.8 31.0 11.0 14.5 56.7 36.0 39.0 40.0 19.3 93.9 5 1 SJ.40 5 5 19.10 5 7 9.93 5 10 36.93 5 13 39.96 5 17 6.00 5 19 3.70 5 39 31.96 5 30 38.90 5 33 55.90 5 35 36.93 5 37 16.40 5 38 57.10 5 40 0.00 5 41 43.76 5 43 33.30 5 44 95.15 5 4636.10 5 48 5.40 5 49 9.15 331.041 3 3J.189 3 30.690 •-• B.1N 3 30.068 2 34.999 3 39.579 331.569 328.537 333.328 1 49.238 339.969 1 48.710 1 37.809 9 32.050 1 48.116 1 37.374 938.369 1 47.945 1 36.430 4/395.70 327.00 336.04 338.36 329.70 —3 43.60 3 43.39 —3 43.05 +35.793 27.765 34.939 27.880 35.079 —83.393 24.895 —93.058 30.150 •- 71.0 41.0 Venui . . . 8.P. •8 Veniu . . . N.P. •8 Venui . . . 8.P. • t Venu. . . . N.P. • 8 18.0 13.1 41.9 %' 3.0 43.1 31.9 96.9 55.8 37.0 16.9 57.9 59.5 43.7 -J-'.l 95.0 5.0 8.7 Venoi . . . B.P. • Vetim . . . N.P. •7.8 Venui . . . 8.P. • 98.9 8.5 •7.8 . . . . Veno« . . . N.P. • 19.9 62.0 •7.8 Remarks. The nretfour companion! Inken without illumination of the wlrei ; three arc (nod, the reit uniatiifactory. A 9. • B. P — . 8 VrauiN. P. — . 8 Results. Mean of chronometer time*. Venui — • A a. A i. h. m. i. m. «. Rev. Three comparison* . . . 5 18 47.00 . . . +337.16 + 25.347 Correction or chronometer . + 13.07 A I ... . . . + 0.56 + 6 38". 09 A f . . . . . . + 0.09 + 1 '.HI h. m. «. m. i. Rev. Three comparisons • • * 5 16 34 44 . . . + 3 27.63 + 97.833 Correction of chronometer * -f- 13.07 Al ... . . . + 0.50 + '' 7".8» A f . 4- 0.09 + 1".93 AT THE NAVAL OBSERVATORY, WASHINGTON. 397 NOVEMBER 13, 1890. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Venus— Star. Bar. Thermometers. A. B. C. A a A<5 Att. Int. Ex. B. 8. s. h. m. s. Eer. m. s. Rev. Inches. f a • 1 2 3 4 5 C 7 8 9 10 11 13 13 14 15 16 •8 56.2 29.1 37.2 44.9 53.1 54.7 3.0 41.4 50.0 20.0 29.3 23.0 32.5 51.2 M.5 10.2 18.0 43.2 50.9 59.3 7.2 8.4 17.0 55.3 3.9 34.2 43.0 37.2 46.1 6.7 14.1 23 9 31.9 57.0 5.9 13.7 91.9 22 8 30.9 9.6 18.0 48 6 56.9 51.4 . 0.3 19.0 27.9 5 20 10.10 5 21 18.00 5 22 43.10 5 23 51.33 5 26 59.30 5 28 7.40 5 31 8.63 5 32 16.96 5 33 55.43 5 35 3.95 536 34.26 5 37 43.03 5 39 37.20 5 40 46.30 5 42 5.63 5 43 13.83 2 43.569 2 35.378 2 43.088 2 32.153 2 42.960 2 34.748 2 4-2.400 2 31.191 2 41.975 2 3.1.810 2 41.518 2 30.336 2 41.088 2 M.718 2 40.503 2 29.358 +1 7.90 1 8.23 1 8.10 1 8.33 1 8.53 1 8 77 1 9.10 + 1 8.20 + 8.191 10 935 8.212 11.209 / 8.165 11.212 8.370 +11.140 30.040 71.0 55.0 48.0 Venus . . . S.P. «8 Venus . . . N.P. •8 Venus . . . S.P. •8 Venus . . . N.P. • 8 Venus . . . S.P. • 8 Venus . . . N.P. • 8 Venus . . . B.P. •8 Venus . . . N.P. Remarks. The flret two comparisons without illumination. The night uncommonly fine and serene. All the circumstances favorable, except the inequality of the external and interior temperatures, which could not have been reduced, all the doors and windows of the dome having been kept open during the whole day. A 8. Venus 8. P. — . 8 Results. Mean of chronometer times. b. m. B. 5 31 18.91 Conection of chronometer 4- 12.53 Venus — « Venus N. P. - . 8 b. m. s. 5 34 16.29 Correction of chronometer -I- 12.53 A* . . A« . A a. III. S. ... +1 8.41 ... + 0.19 Ad. Rev. + 8.234 4-2' 6". 57 Ap . A! . . . . 4- 0.03 m. s. . . . +1 8.38 . . . + 0.19 4- 0».68 Rev. 4- 11.124 4- 2' 50". 99 A, . . . . + 0.04 4- «".91 NOVEMBER 14, 18SO. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Venus— Star. Bar. Thermometers. A. B. C. A a. Ad. Att. Int. Ex. s. s. s. h. m. s. Rev. s. Rev. Inches. a • | 1 2 3 4 5 6 Venus . . . B.P. "8 27.5 24.1 52.0 48.9 24.1 21.0 41.6 38.3 5.9 3.0 38.3 34.7 56.0 52.1 20.1 17.0 52 0 40.0 5 12 41.70 5 13 38.17 5 15 6.00 5 16 2.96 5 17 38.13 5 18 31.90 2 30.990 2 32.599 2 27.800 2 32 300 2 30.388 2 32.080 —56.47 56.96 -56.77 4.1 609 4.500 +1.693 30.083 75.0 57.0 52.0 Venus . . . N.P. * 8 . . . . Venus . . . S.P. • 8 • 898 IMKRIOR CONJUNCTION OF VKNTS, 1850-51, \OVK.MBEIl 14, 1830-CoBlllinrd. 1 J_ 7 8 • 10 11 19 13 u IS u Object. Chron'r time of lran.it. Mean of wins. Micr. Venus— 8ur. Bar. Thermometer*. A. B. C. A*. At. An. Int. Ex. l «. a h. .... -. Rcr. s. Rev. Inches. • • • Vrnu. . . . N.P. •8 37.0 M.I 93.1 19.1 53.0 48.9 49.7 40.« 37 0 36.9 33.0 8.9 2.5 3.8 59.3 34.0 99.7 55.0 51.0 51.0 47.9 19.7 16.9 17.0 13.3 48.9 43.6 5 19 40.96 5 90 37.70 599 37.00 5 30 33.33 5 39 6.30 5 33 9.53 5 36 3.30 5 3659.50 5 37 34.06 5 3839.80 997.900 931.830 9 98.931 930.943 995.631 930.522 o IMM 9 30.149 934.685 9 29.688 - 58.74 58.33 58.93 56.20 —55.74 +4.650 9.011 4.891 1.948 +4.993 30.083 75.0 57.0 M. 0 Vniu . . . 8.P. • 8 Venui . . . N.P. • 8 Venw . . . 8.P. • 8 Vem< . . . N.P. • 8 90.0 18.1 A 9. Results. Mean of chronometer times. Venus — • A «. Ve.osS.P. — . 8 Voniu N. P. — . Four comparisons . . . Correction of clu onoineler . Four companions . . . Correction of chronometer . h. m. i. 8. S 21 0.03 .... — 56.44 + 13.10 A« . . — 0.15 Ap . . + 0.01 h. m. a. .. 596 6.83 .... — 56.43 + 12.10 Al . . — 0.15 NOVEMBER 18, 1 - HP. The planet deformed and tremulous. Observations impossible. . + 0.02 A 4. Ad. R.v. 1.948 97" .91 0".13 Rev. 4.;;,9 1' 13". 15 0".34 NOVEMBER ill, 1850. | Object. Chron'r lime of transit. Mean of wires. Micr. Venus-Star. Bar. Thermometers. A. B. C. A •, At. Alt. Int. Ex. s. s. s. h. m.«. Rev. 1. It.'V. Inches. ' • • • Venus . • . 8.P. 8. A. C. . . . 6194 33.9 48.0 41.9 1.9 55.1 4 48 47.93 4 49 41.13 935.480 998.091 —53.90 —7.369 29.990 74.0 46.6 41.0 3 4 Venus . . . N.P. B. A. C. . . . 6194 39.6 53.9 4518 7.5 0.1 45053.67 4 51 45.92 939.838 9 96.014 59 25 4.894 5 6 Venus . . . 8.P. B. A. C. . . . 6194 53.9 46.0 7.1 0.1 91.0 14.0 4 53 7.10 4 54 0.03 935.090 997.633 52.93 7.387 7 8 NVnus . . . N.P. B. A. C. . . . 6194 t.O 16.1 8.7 99.8 91.7 4 56 15.96 4 57 8.71 932.939 9 97.415 52.75 4.884 9 1* Ve»«s . . . 8.P. B. A. C. . . . 6194 17.9 99.9 51.0 43.5 4.9 57.6 45951.38 5 043.43 935.101 997.080 mjn 8.091 11 11 Vrntw . . . N.P. B. A. «'. . . . 6194 45.9 36.9 59.5 1 :i 13.9 6.0 5 959.76 S 352.16 9 31.427 9 96.788 -59.40 —4.639 AT THE NAVAL OBSERVATORY, WASHINGTON. 399 NOVEMBER tn, 185O— Continued. No. for reference. Object. Chron'r time of transit. Mean of wires. Micr. Venus— Star. Bar. Thermometers. A. B. C. A a. 61. Alt. Int. Ex. 8. s. l. h. m. s. Rev. s. Rev. Inches. O • e 13 Venus . . . S.P. 54 9 8.7 23.0 5 4 8.86 2 34.534 39.990 74.0 46.8 41.0 14 B. A. C. . . . 6194 47.8 1.5 15.7 5 5 1.66 2 36.550 —52.80 +7.984 15 Venus . . . N.P. 0.9 14.8 28.4 5 6 14.70 2 30.901 16 B.A. C. . . . 6194 53.3 7 1 30.0 5 7 6.80 2 26.216 52.10 4.685 17 V.-mn . . . S.P. 57.5 11.2 35.8 5 10 11.50 2 33.799 18 B. A. C. . . . 6194 • • 3.7 17.9 5 11 3.80 2 25.992 52.30 7.807 19 Venus . . . N.P. 4.9 18 0 32.5 5 11 18.47 2 30.208 H B. A. C. . . . 6194 • • 10.8 34.3 5 12 10.72 2 25.801 52.25 4.407 21 Venus . . . P.P. 18.7 32.7 4S.9 5 13 32.76 2 33.249 22 B.A.C.. . . 6194 • • 34.3 38.5 5 14 24.26 2 35.449 51.50 7.809 23 Venus . . . N.P. 19.4 33.0 47.5 5 16 33.30 2 29.309 84 B.A. C. . . . 6194 25.3 39.1 5 17 35.20 2 25.018 51.90 4.291 25 Ex. - s. s. h. m. i. Rer. m. s. Rer. Inches. • • • 1 t 3 4 Venus . . . N.P. 59.3 M 35.0 55.5 13.3 93.9 48.7 97.6 37.0 3.0 93.0 5 9 13.40 5 11 33.06 5 14 48.90 594 9.16 3 37.960 3 30.700 931.658 -9 9.66 -6.560 -9.498 30.050 74.0 46.0 40.5 Venus . . . 8.P. • Remarks, The plane t wavy and uncertain ; lost in clouds. A 9. NOVEMBER 3O, 185O. Observations were attempted ; but l>efore any stare showed IhemRelvco, the planet became deformed and flaming. It if evident from the observa- tion* of the 94lh and of to nichl, that, at the altitude which Venus can be observed at present, it will be impossible to mike any comparison! available for the determination of parallax. NOVEMBER 3O to DECEMBER 1, 1830. An almost uninterrupted rain. JANUARY 10, i --. i . The planet seen tt 17*. 40m. ; but before any comparisons could be taken it was covered by a bank of clouds. .1 \ \ 1 \ 1! \ 13, 1851. i i I Object. Chron'r time of transit. Mean of win-. Micr. Venus— Star. Bar. Thermometers. A. B. a A a. A*. All. Int. Ex. s. i. s. h. m. s. Rer. m. i. Rer. Inches. • • • i 3 4 & 7 8 9 10 11 11 13 14 15 16 ' 18 11 Venui . . . B.F. B. A. C. . . . 5839 Venus . . . N.F. B. A. C. . . . 5839 Venni . . . 8 F. B. A. C. . . . 5839 Venus . . . N.F. B. A. C. . . . 5839 Venui . . . 8.F. B. A. C. . . . 6839 Venni . . . N.F. B. A.C. . . . {839 Venus . . . B.F. B. A. C. . . . &83B Venus . . . N.F. B. A. C. . . . 5839 Venus . . . UK. B. A. C. . . . 5839 Venni . . . N.F. B. A. C. . . . 5839 • • 9.0 • • 17 56 9.00 9 50.313 3 43.735 9 47.131 3 43.968 950.668 3 44.171 3 47.340 3 44.168 9 48.713 343.138 9 45.613 3 42.065 948.853 3 49.198 9 45.841 3 43.903 9 49.010 3 43.391 945.830 3 41.370 . . . +23.393 96.707 33.373 •MM BUM 96.333 93.316 96.171 93.151 +98.410 30.190 69.0 46.0 40.0 • • 56.0 . • 17 57 56.00 • • 41.0 • • 17 59 41.00 • • 57.0 • • 18 0 57.00 • • :u.o • • 18 30 33.00 • • 35.0 • • 18 33 35.00 • • 8.0 • • 18 34 8.00 • • 39.0 • • 18 35 33.00 • • 58.0 • • 1836 56.00 • • 17.0 18 38 17.00 AT THE NAVAL OBSERVATORY, WASHINGTON. 401 JANUARY 13, 1851— Continued. No, for reference. Object. Ctaron'r time of transit. Mean of wires. Micr. Venus — Star. Bar. Thermometers. A. B. 0. A a. A. a. h. m. i. Rev. i. Rev. Inches. • • 1 a :< 4 S 6 : 8 9 10 11 1* 13 14 IS 16 17 18 H 'JO n B 23 84 95 87 88 30 31 a 8 M tt M 37 »• 31 40 Venus . . 8. . . Lalamle . . 31.V13 . \>nu* . . N. . . . Lnlandr . . 31543 . Venm . . 8. . . • • 17.3 • • 17 31 17.3 3 49.799 953.558 1 M 71 - 953.639 950.449 954.38S 8 47.333 9 54.45} 8 50.958 354.878 347.929 954.846 9 51.310 9 55.041 3 48.193 2 55.302 9 51 .731 9 55.519 9 48.850 H 55.7*1 9 51.049 955.695 I • M 9 55.936 9 59. 175 3 58.0-29 - • ! « 9 &0.06-) -....; .. 9 56.231 S 49.W8 356.959 —21.87 99.90 91 .CO -21.83 +3.759 6.931 3.943 7.119 3.914 •.919 3.731 7.110 3.788 7.071 3.646 7.148 3.847 6.879 3.676 +6.963 99.930 74.0 53.0 46.0 • • S.5 • • 17 36 5.5 • • 93.8 « • 17 40 £9.9 VCBUI . . N. . . Lalande . . 31543 . Venm . . 8. . . Ltlamlc . . 31543 . VeoiM . . N. . . Lalande . . 31543 . Venai . . 8. . . LaUnde . . 31543 . Vrnui . . N. . . Lalande . . 31543 . V.-MII, . . P. . . Lalandc . . 31M3 . Vi-niw . . F. . . LaUnde . . 31.113 . VrniM . . F. . . LaUnde . . 31513 . Venn. ...... Lalande . 31.-.43 . Venm . . B. . . LaUnde . . 31543 . Varan . . N. • • 4.9 • • 17 41 4.9 • • 85.9 • • 17 41 95.9 • • 55.0 15.9 • 17 41 55.0 17 47 15.9 • • 399 • • 17 48 39.9 38.3 58.0 9.3 M.I IJ.5 34.3 ».« 17.0 49.3 11.0 15.9 37.0 95.7 47.S 48.3 3.7 3.0 24.0 99.0 50.0 29.0 0.5 1.0 83.0 17 50 49.13 17 .',1 11.00 17 M 14. fO 17 54 37.00 17 K 95.73 17 55 47.33 17 56 48.17 17 .',7 10. CO 17 58 3.7 ».l 1 . . 17 59 90.9 Lalande . . 31543 . Ventlf . . 8. . . Lalande . . 31543 \ ...... . . N. . . LaUndc 31543 • • 43.5 • • 18 0 43.5 14.0 • • 18 3 14.0 18 * 1.3 Venn* . . H. . . Lalande . . 31543 . V.nu. . . N. . . Lalande . . 315U . VMMI ...... LalaMfe . . 31543 . Vni» . . N. . . LaUude . . 31543 . 1.3 • • • • 93.0 • • 18 10 33.0 • • 51.3 • • 18 II 51.8 • • 3.0 • • 18 18 3.0 AT THE NAVAL OBSERVATORY, WASHINGTON. 403 JANUARY 15, 1851— Continued. » 1 <£ 1 1 41 43 43 44 45 46 47 48 49 50 51 52 53 .':! .V, 58 57 58 59 60 61 63 63 64 65 66 C7 68 69 70 71 a 73 74 n 76 r, :- n H H 89 83 M • 86 87 88 Object. Chron'r time of transit. Mean of wires. Micr. Mars— Star. Bar. Thermometers. A. D. C. A a. A«X Alt. Int. Ex. 8. s. 8. li. ni. s. Rev. 9. Rev. Inchfs. • • • Venus . . S. . . Lalande . . 31543 . Vfiim . . N. . . Lalande . . 31543 . Venus . . 8. . . Lalande . . 31543 . Venus . . N. . . Lalande . . 31543 . V. nils . . F. . . Lalande . . 31543 . Venus . . P. . . Lalande . . 31543 . Venus . . P. . . Lalande . . 31543 . Venus . . F. . . Lalanilc . . 31543 . Venus . . 8. . , Lalande . . 31543 . Venus . . N. . . Lalande . . 31543 . Venm . . a. . . Lalande . . 31543 . Vomu . . N. . . Lalaude . . 31543 . Venus . . 8. . . Lalande . . 31543 . Venus . . N. . . Lalande . . 31513 . • ' 33.2 • ' 18 13 23.3 2 52.790 2 56.342 2 49.648 2 56.572 2 52.865 2 56.700 2 49.810 2 56.7S9 2 53.384 3 57.030 2 50.347 2 57.133 2 53.649 2 57.357 2 50.648 3 57.418 2 53.839 3 57.438 3 50.839 2 57.558. 2 53.978 5 57.562 S 50.803 3 57.528 2 54.008 2 57.712 2 50.975 2 59.631 2 54.209 2 57.655 2 51.023 2 57.739 —20.35 20.20 19 86 19.57 18.35 18.14 19.00 —18.50 +3.53! 6.9-24 3.835 6.949 3.646 8.785 3.708 8.770 3.599 6.719 3.584 6.725 3.704 6.656 3.446 +"i.717 29.930 74.0 53.0 46.0 • • 15.0 18 14 15.0 14.2 • • 18 15 14.2 • • 9.2 • • 18 16 9.2 49.5 0.9 13.4 32.0 19.3 39.0 2.7 23.2 13.8 34.0 2.1.1 45.1 31.7 51.5 8.0 16.0 36.0 26.9 47.1 38.0 58.0 45.0 4.1 18 19 2.73 18 19 22.98 1820 13.53 18 30 33.73 1821 25.17 18 21 45.03 18 22 31.96 18 22 51.53 18 21 8.0 • • 47.0 18 25 47.0 • • Yo • • 1833 1.0 • • 30.9 18 34 20.9 • • 57.0 • • 18 35 57.0 • • 3.9 18 37 2.9 Venun . . 8. . . Lalande . . 31543 . Venus . . N. . . Lalande . . 31543 . Venus . . 8. . . Lalande . . 31543 . Venus . . N. . . Lalande . . 31543 . Venus . . F. . . Lalande . . 31543 . Venus . . F. . . Lalande . . 31543 . Venus . . F. . . Lalande . . 31543 . Venus . . F. . . L»lande . . 31543 . Venu* . . S. . Lalande . . 31543 . Venus . . N. . . Lalande . . 31543 . • • 293 • • 18 38 39.3 S7.3 • • 18 39 37.3 • • 1.8 1842 1.8 18.3 • • 18 43 18.3 38.3 43.9 3.0 19.5 49.2 7.0 41.0 59.0 57.0 14.8 32.3 1.3 19.8 14.0 54.0 12.5 9.6 28.1 45.2 4.3 14.8 33.0 18 44 41.07 18 44 59.32 18 45 56.83 18 48 14.97 18 47 32.33 18 47 51.33 1849 1.73 18 49 19.93 18 50 14.0 • • 23.0 18 51 23.0 104 niN.ii-NVTinv Of vi \i g, 1 >.~iti ."il. JAM VII V l.t. Ih.M- rnnlluiied. Rcmarki. Throof liout thme companion* the planet waa flirkerinf and und< -lined. The funr l.i«t taken without illuminnunn of ihc mm. A 6. a TbU compariaon ia tbe Ant at whi'-li the Miar wax . Bev. 3 711 Correction of chrononi.-t'T 4. 15.18 4. 57 04 Ac 4. 0 .11 h. in. ft Rev. • 18 13 35 46 ... 4. 6 879 .)- lfl.13 .... +1 '45". 74 An , 4- 0".18 JANUARY : 1 . 1851. 1 £ Object. Chron'r time of tnunit. Mean of wires. Micr. Venus— Star. Bv. A. B. C. A a. Ad. AU. Int. Ex. Rev. ». Rev. Inches. • • • i 8 3 4 .'. 6 7 8 1 10 11 11 13 14 IS H 17 18 19 • H a • M Taylor . . . 8311 \>niM . . . 8. . Taylor . . . 8319 Venut . . . N. . Taylor . . . 8311 Taylor . . . 8319 Vrnua . . . N. . Taylor . . . 8919 V.nui . . . 8. . Taylor . . , 8919 Venn. . . . N. . Taylor . . . 8919 Vrnu. . . . 8. . Taylor . . . WIB Venu« . . . N. . Taylor . . . 8919 Venn. . . . K. . Taylor . . . 8319 Venn. . . . F. . Taylor . . . WI9 VeniM . . . F. . Taylor . . . MI9 \>n». . . . F. . 8 33.075 3 36.141 3 33.173 9 33.605 3 33.165 838.339 3 33.910 9 33.685 3 33.353 3 36.419 3 33.319 3 33.710 333.581 836 618 3 33.4E9 3 33.930 4-80.70 91.30 91.45 +89.00 —3.066 0.433 3.164 0.475 3.167 0.388 3.037 — 0.431 30.350 70.0 43.0 30.0 . . 44.0 • • 17 59 44.0 . . 51.5 • • 18 051.5 . . 2.0 • • 18 3 9.0 . . • • 18 359.0 . . -'1.0 . . IB S3I.O . . i!0.ll . . 18 630.0 . . :.9.0 . . 18 7 59.0 . . 3.0 56.0 9.0 16. U 99.5 13.0 26.0 34.3 47.3 34.7 47.S &t>.0 9.1 4«.0 59.3 8.< 31.0 43.8 0.3 39.0 33.9 18 9 3.0 18 10 9.17 18 10 89.87 1» 11 95.97 18 11 47.87 18 1347.58 18 14 9.03 18 14 59.03 18 15 91 .03 AT THE NAVAL OBSERVATORY, 'WASHINGTON. 405 JANUARY Ht, 1851— Continued. Remarks. Planet very restless, and star of comparison dimly seen. The star used may not be the star of the catalogue ; it was taken as the brightest in the vicinity. A 5. Results. Mean of chronometer '.imes. Venus — * A a. A I. h. m. s. s. Venus F. —Taylor 8319 . . Four comparisons . . . 181256.80 +21.36 Correction of chronometer -f 19.19 At + 0.05 Af> 0.00 h. m. 8. Rev. Venm 8. —Taylor 8219 . . Four comparisons ... 18 346.05 — 3.108 Correction of chronometer +19.19 — 47". 77 Ap — 0".09 h. m. s. / Rev. VenmN.— Taylor 8219 . . Four comparison* ... 18 5 3.37 . . '. — 0.431 Correction of chronometer + 19.19 — 6 '.67 Ap — 0".01 INFERIOR CONJUNCTION OF VENUS: 1852. MAY 31, IMS. * Chron'r lime of trmnujl. M' :-:i - ' '.'. if • - Micr. Vena*— St»r. Rir Thermometers. { Object. A. B. C. A«. At DBJi An. Int. Ex. I m - i. •. •• h. m. i. Rev. i. Rev. Incbei. • • • \ Veniu . . . B.f. . 0.0 15.4 31.0 7 54 15.47 3 42.913 B,tn 72.0 70.0 84.0 3 B. '/.. . . . 339.86 • • 54.0 10.0 7 54 54.27 1 41 ..Mi -38.80 —31.481 a Venm . . . N.P. . 99.1 45.0 0.8 7 58 44.97 3 40.775 4 B.Z. . . . 339.88 • • 33.0 38.5 7 57 22.89 1 41.470 37.85 29.396 5 Venoi . . . B.P. . 52.0 7.1 93.0 0 7.37 3 43.968 • B.Z. ... «9.86 • • • • 1.0 0 45.27 1 41.386 37.90 31.693 7 Vena* . . . N.P. . 35.4 51.0 7.1 1 51.17 340.898 8 B Z. . . . 339.ee • • 9».0 44.9 2 28.72 1 41.531 37.55 M.4H 9 Venm . . . 8.P. . 17.9 31.9 48.0 4 33.37 3 4-5. 9D1 10 B. Z. . . . 339.81 • • 9.0 35.0 5 9.42 1 41.559 37.0J 31.500 11 Vrnui . . . B.P. . 31.9 480 3.0 8 11 47.63 3 43.101 , It B.Z. ... 339.86 • • 34.0 39.9 8 13 23.73 1 41.094 .16.10 32.108 13 Venm . . . N.P. . £5.9 49.1 57.2 8 13 41.73 3 41.089 14 B. Z. . . . 339.86 • • 17.0 33.0 8 14 17.06 1 41.345 35.35 29.935 IS Venm . . . 8.P. . 92.0 37.5 53.0 8 15 37.50 3 43.380 U B.Z. . . . 338.88 • • 13.0 29.0 8 16 ISlSj 1 41.151 35. PJ 33.319 17 Venm . . . N.P. . 3S.O 50.S 6.0 8 17 50.40 3 41. 1M 18 B. 7.. ... 339.68 • • • • 41.9 8 18 95.65 1 41.058 35.95 30.185 It Veniu . . . B.P. . 36.0 54.1 9.7 8 19 53.93 343.958 » B.Z. . . . 339.86 • • 99.9 45.0 890 39.13 1 40.971 35.30 33.376 SI Venm . . . N.P. . 11.3 97.0 49.9 B 21 97.03 3 41.095 • B.Z. . . . 339. £6 • • 1.3 17.5 699 1.48 1 40.975 34.45 30.911 93 Veniu . . . B.P. . 31.9 47.3 3.0 8 93 47.37 343.960 M B.Z. . . . 339.86 • • 91.5 37.5 8 94 91.77 1 l".--- 34.40 32.463 M Venm . . . N.P. . 94.5 40.0 55.3 8 95 39.93 341.190 • B. Z. . . . 339.86 • • 11.3 30.0 8 98 14.43 1 40.801 31.50 30.410 97 Venm . . . B.P. . 45.1 0.8 16.2 8 98 0.70 3 43.948 X B.Z. . . . 339.88 • • 34.0 49.5 89833.95 1 40.705 33.95 B.O4 M Venn* . . . N.P. . 33.4 49.1 5.0 89949.16 3 41.910 H B.Z. . . . 339.88 • • 99S 38.0 83022.38 1 40.615 -33.90 -30.686 AID. Rctults. Mean of chronometer timri. h. m. •. Vena. H. P. -B. Z, 339.88 . Right cf.mpari.on. . . . 8 19 15.99 Correction of chrouc.mrt.-r — 1 30.59 Venui — • A a. A*. c. Ki'V. ... — 36.07 — 32. 057 A» . . . . . — 0.10 — » 12". 75 At 0.01 INFERIOR CONJUNCTION OF VENUS, 1852. 407 Venus N. P.— B. Z. 339.86 MAY 31, 1853-Contlnued. Results — Continued. h. m. s. Seven comparisons . . . 8 15 17.77 Correction of chronometer — 1 30.59 s. . . . 35 45 Rer. 30.041 A( . . . . . 0.09 7' 41' 77 At 0.01 0".29 JUNE £, 1852. w Chron'r lime of transit. Venus— Star. Thermometers. 1 Object A. B. C. A a. Ac!. Att. Int. Ex. i s. •. 8. h. m. s. Rev. m. 8. Rev. Inches. • • 0 i Lalande . . 15518 40.2 55.2 11.0 8 50 55.47 2 42.098 +2 3.53 —0.667 2 Venus . . . S.P. . 48.0 59.0 10.0 8 53 59.00 2 42.765 3 Lalande • . . 15548 10.2 26.2 41.0 8 54 25.80 3 41.804 +2 3.57 +1.470 4 Venua . . . N P. . 13.9 39.1 45.1 8 56 29.37 2 40.334 Remarks. Clouds all round, near the horizon. A 10. Correction for chronometer, — 1m. 30s .35. JUNE 5, 1853. o Chron'r lime of transit. Venus — Star. Thermometers. E rf ran of wirpH Micr. Bar. i Object. A. B. C. A a. A*. Att. Int. Ex. s fj 1 s. s. - b. m. s. Rev. m. s. Rev. Inches. • 0 • 1 B. A. C. . . 2700 . 20.3 36.0 51.0 7 35 35.73 1 44.298 +3 58.37 -48.330 29.990 70.0 61.0 61.0 3 Venus . . S.P. . 18.9 33.9 49.5 7 3934.10 4 49.541 3 B. A. C. . . 3700 . 16.2 31.0 f 7 40 31.42 1 44.191 359.05 46.114 4 Venus . . N.P. . 14.8 30.5 46.1 7 44 30.47 4 47.338 a B. A. C. . . 2700 . 10.3 25.7 41.3 7 49 25.70 1 43.958 4 0.07 48.758 6 Venus . . SP. . 10.5 35.8 41.0 7 53 35.77 4 49.739 7 B. A. C. . . 2700 . 6.2 21.2 37.0 7 55 31.47 1 43.970 4 0.90 —46.597 8 B Z. ... 279.192 5.0 91.0 7 57 5.37 4 49.580 2 17.00 + 1.990 9 Venus . . N.P. . 7.1 22.0 38.0 7 59 3J.37 4 47.590 10 B. Z. . . . 279.192 41.9 57.0 19.0 8 0 56.97 4 49.456 2 17.76 — 0.553 11 Venus . . S.P. . 59.0 15.0 30.2 8 3 14.73 4 50.009 19 B Z. . . . 379.192 55.1 10.5 96.0 8 5 10.53 4 49.262 2 18.44 — 0.757 13 Venus . . S.P. . 13.2 39.0 44.7 8 7 38.97 4 £0.019 14 B. Z. . . . 379.192 36.8 52.3 8.2 8 8 52.43 4 49.261 2 19.30 + 1.563 15 Venus . . N.P. . 56.0 13.0 27.2 8 11 11.73 4 47.698 16 B. Z. . . . 379.192 47.2 3.1 18.5 8 20 2.93 4 48.903 220.94 — 1.379 17 Venus . . 8. P. . 8.1 33.9 39.1 8 22 23.37 4 50.282 18 B. Z. . . . 379.192 41.0 58.9 12.5 8 33 56.57 4 48.808 2 20.95 + 0.827 19 Venus . . N.P. . • • 17.5 33.1 8 26 17. 52 4 47.981 90 B. Z. . . . 379. 19J 38.1 54.0 9.2 8 23 53.77 4 48.729 2 21.30 + 0.904 91 Venus . . N.P. . 59.2 15.0 31.0 8 30 15.07 4 47.825 23 B.Z. . . . 279.192 38.2 53.0 9.0 8 31 53.40 4 48.579 2 21.60 — 1.693 23 Venus . . S.P. . 0.0 14.0 31.0 8 31 15.00 4 50.972 24 B. Z. . . . 379.192 43.0 58.3 14.0 8 36 58.40 4 48.338 +2 23.33 - 1.751 95 Venus . . S. P. . 5.2 31.0 36.0 8 39 20.73 4 50.089 ins INFERIOR CONJUNCTION OK VKNTS, 1852, JUJTK 9, ISM Con«ln««-d. & 1 Object. Chroo'r lime of tran.it Mean ofwim. Micr. Vrnui — Star. Bar. Thi-rmomrteri. A. B. C. A a. *i. Alt. 1 «. El. Re*. m. «. Rer. Inchei. • • • at 87 B. Z . . . 979. in Venn* . N.P . 48.9 3.9 46.0 18.9 41.9 8 41 3.43 84398.33 4 47.991 4 47.688 . ._, ... •:,, + 0.333 •MM 70.0 6t.O 61.0 Remarks. Planet quite wavy during all thcie observation*. A 9. Venu.8. P. -B. Z.279.182 VenuiN. P.-B. Z.279.192 Five con Correction of chronometer Results. Mean of chronometer limes. h. m. 0. . . . 8 91 20.56 — 1 29.85 Five companions . . . Correction of chronometer 7 18 6.60 — 1 29. So -. Venus — • A a. Ad. in. i. Rev. . . . . + 2 80 21 — 1.228 A( . . . . + 0.38 18". 84 A, .... 0.00 — 0".01 m. i. Il.-v. . . . . -f 9 20 29 + 1 . 121 Al . . . . + 0.38 + 17". 23 Ap 0.00 + 0".0l .MM-: 9, IBS a. No. for reference. Object. Chron'r time of transit. Mean ol'wirci. Micr. Venui — Star. Bar. Thermometers. A. B. C. An. Ai. Alt. Int. Ei. Rer. m. s. Rev. Inches. • • • Laiande . . 10336 Venui . . . N.P. 15.9 49.7 30.9 5.5 47.0 7 57 49.77 7 £9 31.27 3 37.395 3 33.740 +1 41.50 +3.655 29.792 73.0 64.0 64.0 3 4 Laiande . . 16336 Venus . . . 8. P. 19.9 0.9 34.5 15.8 49.6 31.0 8 1 34.43 8 3 15.90 3 37.305 3 36.381 1 41.47 0.921 5 Laiande . . 16436 Venus . . . N.P. m.4 14.0 47.4 39.1 3.4 44.9 8 4 47.73 8 6 99.33 3 37.340 3 33.849 1 41.60 3.388 7 8 Laiande . . 16238 Venus . . . B.P. £3.6 34.9 7.9 50.2 23.6 6.0 8 8 8.03 8 9 50.37 3 37.099 3 36.319 1 49.34 0.780 9 It Laiande . . 16-236 Venus . . . N.P. 31.9 14.1 46.0 99.0 9.0 45.0 8 15 46.40 8 17 29.37 3 36.881 3 34.038 1 49.97 9.843 11 U Laiande . . 16936 Venus . . . «.P. 37.0 20.9 83.0 36.1 8.0 £1.0 8 19 59.33 8 91 35.76 3 36.749 336.605 1 43.43 0.144 13 14 Laiande . . 16236 Venus . . . N.P. 44.1 49.9 14.6 £8.0 893 £9.30 8 94 49.85 3 36.63-} 334.069 1 43.£5 9.570 U It Laliiid* . . 16336 Venus . . . B.P. £4.0 36.1 9.0 £3.0 94.6 M 826 9.90 88753.37 338.539 3 36.513 1 44.17 0.0*6 17 18 Laiande . . 16236 Venus . . . N.P. 12.6 £7.0 97.9 19.0 43.0 97.9 83997.83 8 31 13.30 336.389 3 34.044 1 44.47 +3.315 19 • Ulan*! . . 16336 Venus . . . B.P. 91. 0 6.1 36.3 91.0 £9.0 38.9 8 39 36.40 834 21.33 336.940 3 36.519 +1 44.93 —0.279 AT THE NAVAL OBSERVATORY, WASHINGTON. 409 .11 \ K 9, 1853— Continued. i Chron'r time of transit. Venus — Star. Thermometers. £ Mean of wirps Micr . 31i .52. 52' 410 INFERIOR CONJUNCTION OF VENUS, 1852, Jf!»K 11. 1M». | Object. ehron 'r Une of lrmn.it. Mean of wire. Micr. Venu.-8tar. Bar. Thermometer.. A. B. C. A.. A I. Att. Int. E«. a. - a. b. m. a. Rev. m. >. Rev. Inche.. • • • i Venua . . . N.P. Lalande . . 16583 90.4 35.5 33.9 51.0 49.0 8 5935.63 85533.37 446.035 949.870 -9 57.74 -39.029 30.950 70.0 66.0 3 4 Venui . . . 8.P. Lalande . . 16569 97.5 95.9 49.5 39.7 57.5 55.0 8 58 49.50 9 1 39.97 4 48.789 941.633 357.47 33.014 S 6 Venm . . . N.P. Lalande . . 16583 53.1 49.5 8.1 4.6 90.9 9 3 8.55 9 6 5.00 4 46.160 9 41.563 956.45 30.463 7 8 Vrans . . . 8 P. l.alande . • 16583 7.9 4.0 93.0 19.5 30.0 9 893.30 9 11 19.50 4 48.783 341.443 956.30 33.301 I 10 Vrnn. . . . N.P. l.alande . . 16583 50.0 48.1 5.9 1.0 90.4 16.0 9 16 5.90 9 19 1.03 4 46.369 9 41.960 9 55.83 30.973 11 19 Venui . . . 8.P. 45.0 Lalaade . . 165(3 40.7 0.3 56.0 15.7 11.0 930 0.33 9 S3 55.90 4 49.039 9 41.100 9 55.57 33.793 13 14 Vena. . . . N.P. Lalande . . 16583 91.5 16.0 36.0 31.9 51.9 46.9 9 96 36.47 99931.13 4 46.501 340.788 354.66 31.577 IS 16 Ven«« . . . 8. P. Lalande . . 16583 49.1 49.6 4.1 58.9 90.0 13.7 9 31 4.40 9 33 58.17 4 48.899 9 40.678 3 53.77 34.085 17 18 Tentu . . . N.P. Lalande . . 16583 7.1 1.9 93.0 17.0 37.9 33.0 9 36 33 66 9 39 16.73 4 96.181 9 40.388 3 54.07 31.757 If M Vrnm . . . 8 P. Lalande . . 16583 31.f 95.0 47.0 40.0 9.0 55.5 9 40 46.97 9 43 40.17 4 48.619 938.905 1 IMI —34.571 Remarks. Planet tremulous. A 9. Results. Mean of chronometer time«. Venui — • Vrana 8. P. - l.alande 16563 Venni N. P. — Latande 16589 Five cnmpari»onB . . . Correction of chronnnNMtr Five compnrUonii . . . Correction of chronometer li. in. ». 9 19 47.48 A a to. >. .... —955.96 AJ Rev. — 33.733 — 1 31.49 Al. . . — 0.48 — & 38".59 Ap . . - 0.14 — 1".B8 h. in. n. 9 16 7.80 m. •. .... —855.75 Rev. — 30.759 — 1 31.49 Al. . . - 0.46 — 7' Si". 81 A f .MM. 1», i - . :. 1 Cbron'r time of tran.il. Vcntu— Star. Bar Thermometer.. jr Object. A. B. C. A a. A t. Att. Int. F.I. 1 a. a. t. h. m. a. Rev. m. a. Rev. Inches. ' a> • 1 Venui . . . N.P. 40.5 56.0 11.0 8 16 55.83 4 99.783 30.319 73.0 70.0 1. l-alaode . . 16659 49.0 57.0 19.9 8 19 57.06 3 95.145 —3 1.33 a Y*ma . . . 8.P. 18.7 34.3 50.0 8 91 34.33 4 33 499 4 Lalawfa . . 16659 90.7 35.6 51.9 89435.83 9 37.891 -3 1.50 —90.403 AT THE NAVAL OBSERVATORY, WASHINGTON. 411 JUNE lit, 1853— Continued. No. for reference. I Object. Chron'r time of transit. Mean of wirea. Micr. Venus— Smr. Bar. Thermometers. A. B. C. An. A A Att. Int. Ex. B. 8. B. 1). III. 8. Rev. HI. B. Rev. Inches. * O O 5 Venus . . . N.P. 45.5 0.1 16 0 8 27 0.53 3 43.658 30.312 72.0 70.0 6 Lalaude . . 16659 46.5 4.7 17.5 8 30 1.90 2 37.440 —3 1.37 —19.295 7 Venus . . . S.P. 45.5 1.0 15.9 8 33 0.80 3 45.182 8 Lalande . . 16659 46.0 1.0 16.0 8 36 1.00 2 37.050 —3 0.20 —21.109 Remarks. Observations interrupted. The night growing misty. Correction for chronometer — 1m. 31t .27. a Declination observation rejected. A 8. .MM: 1 1 . issa. No. for reference. Object. Chron'r time of tiansit. Mean of wires. Micr. Venus— Star. Bar. Thermometers. A. B. C. A a. Ad. Alt. Int. Ex. - a. B. b. in. B. Rev. m. s. Rev. Inches. • • « 1 Lalande . . 16611 39.1 54.4 10.4 8 8 54.63 2 34.325 +1 44.87 +0.433 30.276 78.0 77.0 a Venus . . . N.P. S5.1 39.8 53.6 8 10 39.50 4 33.892 3 Lalande . . 16641 24.1 39.1 55.0 8 13 39.40 331.141 1 46.10 —2.349 4 Veniu . . . S.P. M 25.6 41.0 8 14 25.50 4 36.490 5 Lalande . . 16641 20.2 35.0 50.8 8 21 35.33 2 33.723 1 46.64 +0.838 6 Venus . . . N.P. 6.8 32.1 37.0 83321.97 4 3-J.ffS 7 Lalande . . 16641 40.5 55.0 10.8 8 34 55.43 2 33.488 1 46.70 —2.950 8 Venus . . . 8. P. 27.1 42.1 57.2 8 26 42.13 4 36.438 9 Lalande . . 16641 51.0 7.2 23.1 8 28 7.43 2 33.350 +1 47.17 —3.012 10 Venus . . . S.P. 39.2 54.6 10.0 82954.60 4 36 362 Remarks. Observations interrupted by clouds. A 10. Correction for chronometer — 1m. 31t.27. JUNE 15, 1858. i Chron'r time of transit. Venus— Star. Thermometers. g Object. A. B. C. A a. Ad. Att. Int. Ex. i B. B. B. h. in. s. Rev. m. B. Rev. Inches. 0 a • i Venus . . . S.P. 40.8 56.1 11.9 7 52 56.27 4 34. 322 2 Lalande . . 17013 25.1 40.0 55.0 7 59 40.03 4 25.228 —6 43.76 — 9.094 3 Lalande . . 17040 9.0 8 0 9.03 5 86.210 7 12.76 +51.888 4 Venus . . . N.P. 52.5 8.0 23.1 8 3 7.87 4 31.709 5 Lalande . . 17013 33.5 50.8 . , 8 9 50.77 4 24.919 6 42.90 — 6.790 6 Lalande . . 17040 15.0 • • 8 10 14.97 5 25.875 —7 7.10 +54.166 113 INTKIUOR CONJUNCTION OF VENUS, 1852, .11 XK 19, 1S6-J < Miilliiuril. Remarks. Pltnel tremulous, and star badly M«n. A 8. for chronometer — 1m. 3li.*!. Jt .\K SO, 1S3S. Star of comparison could not be Men. A 7. JUNK 93, 1&5S». To-day Venus should hive been observed in the da) light with I Cincri, but it rained or was cloudy all day. JfXK «.->, 188 '*. Observations eonmienred ; but before any comparisons could be made, the planet became too undefined and tremulous. A 7. .MM. »6, 1- Vi. 1 Chron'r time of transit. Venus— Star. Thermometers. S Micr Bar 1 Object. A. B. C. A«. Ai. Alt. Int. Ex. 1 x at 1 Venua . . . N.P. . 43.0 58.0 13.0 8 5958.00 3 41.068 30.168 73.0 68.5 9 B. Z. . . . 974.39 3.5 19.0 34.0 9 2 lf.83 4 36.532 —9 20.83 +8.351 3 Venus . . . S P. . 57.9 12.8 28.0 9 4 IS. 90 3 43.841 4 B. Z. . . . 274.30 18.9 32.9 48.6 9 6 33.83 4 35.948 2 20.33 4.994 5 Venus . . . N.P. . 56.9 12.1 S8.7 9 8 11.90 3 38.423 6 B. Z. . . . 974.30 17.5 32.0 48.0 9 10 32.50 4 33.698 8.163 7 Venus . . . B.P. . 58.0 13.0 98.0 9 14 13.00 341.018 8 B. Z. . . . 974.30 17.8 33.0 48 0 9 16 32.93 3 45.709 2 19.93 5.309 9 Venus . . . N.P. . 3.0 17.9 33.0 9 19 17.96 4 37.048 10 B. Z. . . . 274.30 • • 3C.S 54 0 9 21 38.76 4 31.760 —290.80 + 7.599 Remarks. These observation! without illumination. The planet tremulous and uncertain. A 10. Correction for chronometer — I m. 25>.23. JI'KK 37, I85J1. No. for refnence. Object. Cbron'r tine of transit. Mean of wires. Mlcr. Venus-Star. Bar. Thermometers. A. B. C. Ac. At. Alt. Int. Ex. s. s. s. h m. •. . Rev. in. f. Rev. Inches. • • • 1 9 Vemta . . . B.P. . : 33.0 B.Z. . . . 974.33 90.0 47.0 35.9 9.9 51.0 7 53 47.30 7 57 35.49 4 41.719 9 46.099 -3 48.10 -91.484 1 4 V*»«. . . . N.P. . n / . . 974.J3 98.0 14.0 41. n s«.o 0.0 44.0 8 0 41.00 8 499.09 4 37. 9SO 9 «S 173 -3 4*.00 -18.611 AT THE NAVAL OBSERVATORY, WASHINGTON. .1 IM-: ;7 . 1§5S8— Coiitlniied. Remarks. lligh winds and clouds. A 7. Correction for chronometer — 1m. 24*. 02. 413 JUNE 39, Star of comparison not visible. A 10. The planet was also observed on the 2d, 3d, 4th, 5th, 6th, 7th, and 9th of July, but on none of these days were the observations of the slightest value. Observations were also attempted on the 14th, 15th, 17th, 26th, 29th. 30th, and 31st of August, and on the 1st, 2d, 5th, 7th, and 13th of Sep- tember. Those of the 26lh and 29th of August, and 5th of September, which follow, are tin- only ones in which any comparisons could be made. AUGUST -ill, 1853. 1 Cbron'r time of transit. Micr. Venus — Star./ Bar. Thennometenr. 1 Object. A. B. C. An. Ai. Alt. Int. El. g S e • i. •. •. h. ni. s. Rev. m. i. Rev. Inches. • • « 1 Lalande . . 15125 . 36.1 51.0 6.0 15 25 51.03 3 46.580 +3 2.97 +14.297 29.810 79.0 82.0 2 Veniu . . 8.F. . 39.0 54.0 9.0 15 28 54.00 2 45.260 3 Lalande . . 15125 . 35.9 51.0 6.0 15 30 50.97 3 47.449 3 3.03 17.398 4 Veoiu . . \.K. . 39.0 S4.0 9.0 15 33 54.00 2 43.028 5 Lalande . . 15125 . 2.0 17.0 32.0 15 35 17.00 ' 3 47.992 3 3.90 14.699 1 Venui . . 8.F. . 6.0 20.8 • • 15 38 20.90 2 46.270 7 Lalande . . 15125 . 42.0 56.2 11.0 15 39 56.40 3 48.550 3 3.76 17.557 8 Venus . . N.F. . 45.5 0.0 15.0 15 43 0.16 3 43.970 9 Lalande . . 15125 . 42.0 57.0 12.0 15 46 57.00 3 49.114 3 4.53 14.743 10 Venus . . 8.F. . 46.8 1.3 16.5 1550 1.53 247.348 11 Lalande . . 15125 . 9.1 24 6 39.4 15 51 24.37 3 49.551 3 4.89 17.618 13 Venu« . . N.F. . 14.2 29.3 44.3 15 54 29.26 2 44.910 13 Lalande . . 15125 . 57.0 12.0 27.0 15 55 12.00 3 49.821 3 5.13 14.910 14 Venus . . 8.F. . s.i 17.3 32.0 15 58 17.13 2 47.888 15 Lalande . . 15125 . 26.3 41.2 56.3 16 0 41.23 3 49.972 +3 5.77 +17.471 16 Venus . . N.F. . 32.0 47.1 1.9 16 3 47.00 3 45.478 Remarks. The planet very tremulous. Observations altogether unsatisfactory. A 7. Venn* 9. F. — Lalande 151125 Verms N.F.— Lalande 15125 Remits. Mean of chronometer times. Four comparisons . . . Correction of chronometer Four comparisons . . . Correction of chronometer Venus — • An. h. ni. H. in. R. Rev. 15 43 53.39 +3 4.13 + 14.662 — 15.81 A t . . . + 0.50 + 3' 45". 37 A, ..... 0.02 + 0».31 1). 111. H. m. fl. Rev. 15 48 47.60 . -4-3 4.36 + 17.511 — 15.81 At . . . + 0.50 + 4' 29 '.19 A f> . . . - 0.03 + 0".43 414 INKKRIOR CONJUNCTION OF VENUS, 1852. AUGUST ao. insa. rtirrwi'r litrtfi nf ITMTI«II Vcnu*— Si* ft § Lnron i nine 01 ir^nsii. M. in ..' w in - Mu-r. Bar. Thernonetera. k Object. A. B. C. Ac. AJ. Alt. Int. Bi. • 1 a. *. a. h. m. a. Rer. in. a. Rer. Inrhea. • • • 1 •» 94.0 39.9 51.5 15 97 38.90 339.932 +4 90.40 - :<-.:,:'.> 30.900 | K9.0 79.0 t Vrnu» . . . 8.P. 44.0 14.6 15 31 59.30 5 98.495 T " 3 Venua . . . B.F. 00.5 45.5 59.5 153745.16 5 98.939 4 B. A. (I. . . . 9639 5.0 90.0 15 38 5. IK 2 96.719 —20.00 45.956 5 Venn* . . . N.F. 55.5 10.3 95.8 15 40 10.53 596.539 • B.A.C. . . . 9639 15.0 29.6 44.5 15 40 99.70 9 96.719 19.17 43.216 7 Venna . . . B.F. 11.6 97.1 42.3 154937.33 599.548 8 B.A.C. . . . 9639 38. 0 46.4 1.7 15 49 46.70 •j I7JN 19.37 45.384 1 Venua . . . N.P. 90.8 35.5 50.6 15 44 35.63 596.885 10 B. A. C. . . . 9639 39.0 51.1 9.1 15 44 54.07 397.349 18.44 •.m 11 Vrnui . . . 8. F. 39.7 54.6 9.0 15 46 54.43 599.889 19 B. A. C . . . 9639 59.0 13.0 98.2 15 47 13.40 3 37.480 18.97 4o.438 13 Venna . . . N.F. 49.7 4.9 19.9 15 49 4.37 527.900 14 B. A. C. . . . 9639 8.7 93.0 38.0 15 49 93.93 9 27.660 18.85 43.576 15 Venna . . . B.F. 18.3 37.0 48.5 15 53 33.40 5 30.922 It B.A. C. . . 9639 33.2 51.7 6.5 15 52 51.40 2 27.969 18.00 •JM n Venn. . . . N.F. 43.0 57.3 19.9 15 54 57.17 597.559 18 B. A. C. . . . 9639 0.0 15.0 30.0 15 55 15.00 227.960 — 17.83 i-j.r.~ Remarks. The BUT nearcKt the planet was compared. The obaervations are, however, UDMIinfaclory— the planet being lambent and wavering. A 6. Results. Mean of chronometer time*. A «. h. m. a. *. VruuiS. F. B. A.C. 9639 . Four eomparinona . . . 154455.08 1908 Ad. Kcv. 45 342 11' 36". 96 A f 4. 0 05 1".19 h. m. f. a. Vrnu 8. F. — B. A. C. 2639 . Poor comparittni ... 15 47 11.92 1857 Her. 42 749 — 10" 57' .10 A • . . 4- 0 04 4- 1".06 KKPTKMHEH 5, ISO*. ) i Object. Chron'r time of traniit. Mem of wire*. Mlcr. Venui — Star. Bar. Thermometer!. A. B. C. A a. Ao. Air. Int. F.I. a. a. a. h. m. a. Rev. m. a. Rer. Incbea. • • • 1 Venn. . . . B.F. • • • 15.0 59.0 93.0 59.1 35.0 5.0 30.0 7.0 38.0 14.0 49 0 90.0 10 9 15.00 10 10 59.00 10 11 99.50 10 13 59.07 10 IS 34.59 10 16 5.09 296.745 5 98.038 994.368 5 93.751 596.395 —1 37.00 9 7.50 1 35.45 —9 5.95 -{-43.656 4J.3I9 44.419 +44.963 • Vena. . . . N.F. • 44.1 • Remarks. fii.tory. Correction fur clironumclcr + 1C». W. A 6. OPPOSITION OF MARS, 1849-50. DIFFERENTIAL OBSERVATIONS, WITH THE 23 FEET EQUATORIAL, AT THE OBSERVATORY, CAMBRIDGE, MASS., BY PROF. WM. CRANCH BOND. OPPOSITION OF' MARS: 1849-50. INTRODUCTORY REMARKS TO THE CAMBRIDGE OBSERVATIONS. Observations upon Mars and comparison stars, made at the Observatory of Harvard Col- lege, 1849-50. The following observations upon Mars and comparison stars in its neighborhood were made at Cambridge, with the 23-feet Equatorial, in the autumn and winter of 1849-50. The imme- diate object proposed in undertaking them was the determination of the parallax of the planet by differential observations. Those in declination were intended for comparison with corre- sponding ones made by the Expedition sent by the American government to Chile, under charge of Lieut. J. M. Gilliss, U. S. N. The Right Ascension observations afford data also for deducing the parallax, by comparing the place of the planet at the evening and morning observations, when occupying a large hour angle west and east of the meridian. They are comprised in three divisions, viz : Comparisons of the planet with neighboring stars — let. By times of transits, marked with a chronometer. 2d. By differences of A. R., measured with the micrometer. 3d, By differences of declination, measured with the micrometer. In the reduction of the latter, the value of a revolution of the micrometer head used was — r = 9".800 + 0".00026 (t° — 50°,) t being the temperature in degrees of Fahrenheit's scale. For the Right Ascension observations, those stars of sufficient brightness nearest to the decli- nation of the planet were commonly taken, preference being given to the stars of the catalogue in the circular of the Chile Expedition, when they were near enough to admit of frequent repe- tition. But in all cases the same comparison stars were used for the successive evening and morning observations. The stars compared in declination were taken from the catalogue of- the Expedition. All the observations are reduced to the means for each wire separately, and the times by the chronometer are reduced to the sidereal times at the Observatory. The small corrections ap- plied to the means of the micrometer differences are for the effect of temperature upon the value of the screw. For the name of the observer, the initials W. C. B. for W. C. Bond, and G. P. B. for G. P. Bond, are employed. W. C. BOND. CAMBRIDGE OBSERVATORY, July 21, 1853. 53° 1UGHT ASCENSIONS OF MARS: 1849-50. NOVEMBER IS, 184.9. Man following limb. Man follom Mar a =. U mat- Mara following limb. Mara followi Mar a = 14 mig . Pint wire. Second wire. Tim wire. Second wire. Tint wire. Second wire. First win-. Second wire. A. m. >. m. i. a, «. A. m. I. m. J. t. t. 0 40 37.3 40 5t wire. Second wire. Firet wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. f. m. r. «. i. A. m. f. m. s. 8. *. 856 43.0 56 56.5 24.3 a 24.5 9 1 25.5 1 40.0 24.3 24.5 58 23.0 58 36.5 23.8 24.0 2 45.0 2 59.4 24.0 24.1 9 021.5 0 35.7 34.3 24.2 A. m. «. An. •. No. of lib-. Mean by flrst wire . Chronometer fast . . 8 59 55.20 50.65 Sid. lime . . . . 8 59 4.55 24.10 5 A. m. 8, Mean by second wire . 9 0 9. 02 Chronometer fust . . 50.65 Sid. time . . . . 8 59 18.97 No. of obs. 24.26 Mars following limb. Mars follows star 6 = 13 mag. Mars following limb. Mars follows star 4 = 13 mag. Fir»t wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. f. 9 6 10.8 7 56.3 8 58.0 m. *. 6 23.7 8 9.2 9 10.5 8. 24.0 23.8 24.0 8. 24.1 24.2 33.5 A. m. 8. a 10 51.3 11 47.5 12 53.0 m. s. 11 3.8 12 0.5 13 5.5 8. 33.8 33.9 23.8 8. 33.8 34.0 23.9 A. m. «. Mean by first wire . . 9 946.15 Chronometer tot . . 50.65 .lid. time 98 55.50 Nn. of obn. A. m. f. Mi-an by second wire . 9 958.87 Chronometer fast . . 50 65 Siil. lime 99 8.33 No. of obs. 23.92 420 OPPOSITION OF MARS, 1849-50, \0\ KMr.KU II mill 111. I •.!•.' I ..niliiiii.l. t tr*l wii *. Seeood wire. Tint wire. S'TOlnl wire. Flnt wire. >. Ml ••'• ••• • Pint wire. Second wire. ». m. ,. m i. i. •. A. m. i. m. f. t. i. t was.* 1C 6.4 33.0 33 1 9 £< 94 8.0 33.1 34.0 18 SI. 3 1844.1 33.7 34.4 86 21.0 9631.3 33.5 33.9 90 18. 5 91 11.3 33.0 33.3 A. m. t. M.-.n by Am wire . . 9 21 7.98 Chronometer fart . . 50.66 s,,L lime . . . . 9 20 I7..T-' Nn.of B H A. m. >. Mean by >crnnd wire . 9 21 3U.82 ClirniKimctrrraM . . 5066 Sid. lime. . 92030.16 A a. No. of Mar. following Imib. Man precede* .tar II. C. 19554. Man following limb. Man precedes star H. c. : Finl wire. Second wire. Fir-t wire. Second wire. Fir»t wire. Second wire. l"ir-l wir.-. Second wire. A m. i. m. f. i. *. A. m. t. m. «. i. i. 9 31 90.50 :ii 03.4 3-J.8 33.6 9 SB 58.00 39 10.9 33.8 33.9 M I.'.. 02 34 98.4 34.1 33.6 41 31.00 41 47.0 33.6 33.2 36 31.03 3644.5 33.9 33.9 A. m. fl. M.'.in by Ant wire . 9 36 37.70 riir.moiiM i.T i i-i . . :•''.>.; Si.l. time . 9 35 47.01 A «. No. or 33.50 k. m. *. Mean by second wire . 9 3d 50.64 CIlrnllilllirllT fast . . 50.66 Sid. lime . . 9 35 59.93 A o. No. of f. oli*. 33.50 Mara preceding Hint.. Man precede! nar H. C. 12554. Mam preceding limb. Man precrdei ctar H. C. 12554. Flnt win. Second wire. Fint wire. Second wir.-. First wire. Second win-. Fint wire. Second wire. A ~. •. 9 17 2.4 19 49.7 29 99. 7 m. i. 17 13.6 90 1.3 9243.0 «. 35.1 33.1 34.3 •. 34.4 34.4 33.9 A m. t. 925 4.4 27 41.6 m. i. 25 17.5 27 51.5 s. 35.0 33.7 t. 35.0 34.5 A. m. t. Mean by Ar.1 wire . 9 2J 2S.56 Clininnincli r fait . . 50.66 Hid. lime . . . . 9 21 34.90 \... Ml OlM. 31.24 A. m. i. Mran by 37 14.16 L a. No. or 34. 4 AT THE OBSERVATORY, CAMBRIDGE, MASS. XOVF.MHF.lt 10, 1819. 421 Mars following limb. Mars precedes star 11. C. 12554. Mars following limb. Mars precedes star H. C. 12554. First wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. t. m. «. t. «. A. m. >. m. a. ft 8. 3 58 59. 9 59 14.5 53.9 53.0 3 9 29.0 9 43.1 54.1 54.1 3 3 42,5 3 57.0 54.0 54.1 11 33.0 11 46.5 53.8 54.0 7 43.9 7 58.5 51.0 53.9 13 36.8 13 51.2 54.3 54.3 Remarks. Bad definition. Observer, G. P. B. a Recorded 34>.2. Mean by fir-t wire Chronometf r fan . Sid. time . . . k. m. t. 3 7 30.69 50.66 3 6 40.03 54.00 No. of obs. A. m. 5. M<-an by second wire . 3 745.13 Chronometer fast . . 50.66 Bid. linn- 36 54.47 A a. 54.00 No. of obs. NOVEMBER 1C and IT, 1849. Mara following limb. Mara prerede« star II. 0. 15554 = Mars following limb. Mara precedes star H. C. 12554 = - „,..-. 8 mag. First wire. Second wire. Pint wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. t. m. t. m. i. m. f. A.m. «. m. I. m. f. m. *. t 3725.3 37 39.7 1 3.7 1 3.6 9 48 3.8 48 18.0 1 3.7 1 4.0 39 4.4 39 18.8 3.7 3.6 10 17 5.0 17 19.5 4.5 4.5 41 50.7 4-2 5.2 3.8 3.8 18 44.8 18 59.2 4.7 4.8 43 34.4 42 49.0 3.6 3.6 30 23.0 20 37.5 4.6 4.6 44 19.1 44 33.4 3.6 3 8 22 22.9 22 37.4 4.6 4.6 46 8.1 46 22.7 3.9 3 8 Remarks. Definition good. Observer, <;. P. B. A. m. f. Mean by first wire . 95611.05 Chronometer fast . , 50.95 Sid. time . 95520.11) Ai>-eiver. <;. P. B. Mar. following limb. Man follows Bc»scl 523. Mara following limb. Mara follow. Besael 523. First wire. Second wire. First wire. Second wire. First wire. Second wire. Fire! wire. Second wire. a.m. t. fA. t. «. «. A. m. *. m. s. «. >. 9 7 97. 9 7 4-J.5 27.7 28.2 9 2926.6 29 41.3 27.0 97.6 8 43.6 r- .' ' . ! 27.8 98.1 30 44.3 30 59.0 27.1 27.2 10 37.0 10 51.0 28.1 280 32 7.5 3-J 21.0 27.0 27.1 11 47.1 12 1.4 27.6 27.6 33 57.2 34 11.5 27.3 27.1 13 0.9 13 14.4 28.0 28.0 35 33.1 35 47.7 97.1 27.3 14 15.8 14 99.9 97.8 87.8 36 49.0 37 3.3 27.1 98.3 15 37.0 15 SI. 3 27.8 27.9 37 S8.6 38 13.1 27.2 27.1 16 57.9 17 12.0 27.9 27.6 39 10.6 39 2i.O 96.7 97.0 1843.0 18 57.3 27.4 27.8 40 24.6 40 39.0 96.7 96.8 1959.9 20 13.4 27.7 27.4 41 35.0 41 49.4 27.0 97.2 91 11.3 91 25.3 27.6 27.3 Remarks. One of the wires at 2*. 36m. was probably recorded 1«. in error. Observer, W. C. B. Mean by first wire Chronometer fast . Bid. time . . . A. m. i. 2 2t 34.60 53.94 2 23 41.36 A a. 27.40 No. of olu. 21 A. m. t. Mean by second wire . 2 24 46.95 Chronometer fast . . 53.24 Sid. time . . 2 23 55.71 Ao. I7.M No. of 21 .NUVKMHKIt 21 and 33, 1*11). Man following liinb. Mars follows star Bewel 503. Mars following limb. Mara follow! Bessel 523. FlrMwire. Second wire. Flrpt win'. Si omul wire. First wire. Second wire. First wire. Second wire. A.m. i. M. f. «. s. A. m. i. m. i. «. «. 9 49 40.0 . . • 10.5 , . 956 33.S 56 55.0 10.5 10.4 SO 14. 9 . . . 10.9 57 43.5 58 5.4 10.5 10.6 • M.* 59 45.8 10.7 10.6 58 34.3 5855.9 10.3 10.4 53 19.9 5340.8 10.7 10.1 59 31.8 59 S3.S 10.3 10.3 54 14.5 54 36.9 10.7 10.6 10 0 39.8 1 1.6 10.4 10.3 55 19.0 Si 40.7 10.4 10.5 Mean by drat wire Chronometer fast . Kid. time A. m. .. • 55 17.63 53. 33 « 54 94.30 A a. No. of HI.M A. m. r. Mean by second wire . 9 56 50.50 Chronometer fast . . 53.33 M. linn- 9 55 57.17 A a. in. is No. of obs. AT THE OBSERVATORY, CAMBRIDGE, MASS. NOVEMBER 21 and 23, 1849— Continued. 423 Mars following limb. Mars follows Bessel 523. Mars following limb. Mars follows Bcssel 533. First wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. f. m. ». 4. p, A. m. 5. m. s. •. 8. 10 27 0.5 27 19.2 9.5 9.2 10 31 52.5 32 11.3 9.0 9.3 27 48.2 28 7.0 9.2 9.1 32 40.5 9.1 . . 28 35.8 28 51.5 9.2 9.2 33 11.3 33 30.0 9.3 9.2 29 33.0 2950.9 9.1 9.3 34 11.5 34 30.3 9.0 9.0 30 18.9 30 37.8 9.0 9.3 34 59.3 9.0 31 5.5 31 24.3 9.1 9.2 35 4.4 8.8 A. m. s. Mean by first wire . 103121.70 Chronometer last . . 53.34 Sid. time . . . . 10 30 28.36 A a. No. of t. ubs. 9.11 12 k, m. s. Mean by second wire 103043.80 Chronometer fust . . 53.31 Sid. time . . . . 10 29 49.46 A a. No. of s. obs. 9.20 Mars following limb. Man follows Bessel 523. Man following limb. Mars follows Bcsscl 523. First wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. >. m. f. t. r. h. m. «. m. t. s. s. 10 48 41.6 . . . 8.4 10 52 20.9 52 42.7 8.4 8.4 49 11.7 8.7 . . 53 11.5 53 33.1 8.3 . 8.4 50 8.2 50 26 4 8.4 8.6 54 8.3 54 29.9 8.2 8.1 51 27.5 51 49.0 8.5 8.4 Remarks. Observed, without illumination, through cirrus clouds. Limb tremulous. h. m. i. Mean by first wire . 10 51 18.53 Chronometer fant . . 53.34 Sid. time . 105025.19 A a. No. of i. obs. 8.41 A. m. t. Mean by second wire 10 52 36.22 Chronometer fast . . 53.38 Sid. time . . 10 51 42.84 No. of obs. 8.38 NOVEMBER 2G and 2T, 1849. Mam following limb. Mars follows star * = 11 mag. Mars following limb. Mars follows star 6=11 mag. Firit wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. I. f. A. m. «. t. 10 4-1 29.4 ... 17.6 10 45 52.6 . . . 16.4 . . 43 19.0 ... 18.5 . 46 35.4 ... 17.4 n '54. 2 17.4 47 15.5 . . . 17.3 . . 44 37.0 17.5 . 47 50.9 17.4 . . 45 15.6 . . . 17.5 • • 48 44.2 . . . 17.2 • • Remarks. Star is 5' north of Mars. Observer, G. P. B. A. in. «. Mean by first wire 10 45 35.38 Chronometer fast 56.55 Sid. time 10 44 38 83 17.42 No. of obs. 10 [24 OPPOSITION OF MARS, 1849-60, \<>\ KMKKH 46 aiitl 47. l-l ' I ..ulliiii. .1. m t Man prwfdm H C 19237 Fir.t win. DCC4MM WlfT, Pint wire. Second wire. First wire. Second wire. Pint wire. Second wire. A.m. .. m. .. i. «. A. m. I. m. *. •. «. 11 8 38.8 8 i3.5 37.1 37.0 11 14 93.5 14 38 0 37.1 37.4 100.5 11 4.0 36.9 37.9 IS 49 7 16 4.9 37.4 37.4 19 10.7 19 S5. 3 37.1 37.9 A.m. i. A «. Nt>. at i. obs. A. m. i. A i I. No. of OlM. Mru by Ant win . . 11 19 99.34 Mean by second wire . 11 19 37.00 Chronometer fast . Sid. lime .... 53.38 11 11 9o.78 37.19 5 Chronometer fast . Sid. lime .... 56.56 11 11 40.44 37.34 5 NOVEMIIER 27, 1840. Man followinf limb. Man precede* star 4^11 mag. Mara following limb. Mara precedes star b = 1 1 ma|. Firat wire. Second wire. First wire. Second wire. Firat wire. Second wire. Pint wire. Second wire. A-«. .. s. A. m. *. f. 1 8 91.8 . . . 22.9 1 11 36.6 93.1 , . 9 16.0 . . . 99.8 . . 1325.0 • . * 99.8 t t 10 7.5 . . . 99.8 , . 13 31.3 * . . 99.9 . , 1050.3 . . . S3.9 • • 15 97.0 • • • 93.5 • • Remarks. Observations through passing clouds. Observer, C. P. B. A.m. f. Mean by Aret wire 11197.31 Chronometer fast 56.75 Sid. lime ... 1 10 30.56 A a. 23.91 No. of obs. Mara following limb. Mara precedes star 4=11 mag. Mara following limb. Mar« precedes star 6=11 mag. First wire. Second wire. Pint wire. Second wire. First wire. Second wire. Firat wire. Second wire. A. m. i. «. A. m. i. i. 1 93 59.8 . . • 93.4 . . 1 96 43.3 ... 93.7 , f 25 7.5 . . . 93.6 . . 9739.5 ... 93.8 t t 9555.0 . . . 94.0 • • 9890.0 . . . 94.0 • • A.m. I. Mean by first wire 1 96 16. SI Chronometer fast 56.75 Bid. time ... . 1 95 19.76 obs. D.7I Man following limb. Man precede* star 4—11 mag. Man following limb. Man precedes star t = 11 mag. First win. Bccood Wirr. Pint win. Second wirr. Pint wire. Second wire. Firat wire. Second wire. A, «. .. 1 4«93.5 • s. 9S.O • • A. m. f. 1 47 15.0 . . . t. 25.0 • • AT T1IE OBSERVATORY, CAMBRIDGE, MASS. 425 NOVEMBER HI, 1849-CouUuucd. h. m. s. Mean by first wire 1 46 49.23 Chronometer last 5S.76 Sid. time I 45 42.49 A a. 25.00 No of obs. Mars following limli. Mara precedes star 6 := 11 mag. Mars following limb. .Mars precedes star 4 = 11 mag. First wire. Second wire. First wire. Second win;. First wire. Second wire. First wire. Second wire. A.m. s. m. i. «. s. ft. m. x. m. s. s. s. I iO 17.1 50 30.2 21.9 24.8 1 53 31.2 55 41.3 23.0 25.0 51 18.1 51 31.2 24.9 21.9 56 35.0 50 43.0 25.3 25.3 52 23.5 53 36.5 2',. -2 25.1 57 38.8 57 51. a 25.3 23.1 53 20.9 53 33.8 21.9 25.2 54 21.8 54 31.0 25.2 25.0 1 A a. No. of A a. No. of A. >.-.. 8. t. olis. h. m. s. s. obs. Mean by first wire . 1 53 55.80 Mean by second wire , K"54 8.86 Chronometer fast . 56.76 Chronometer fast . 56.76 Sid. time . 1 52 59. 01 25.09 8 Sid. time . 1 53 12.10 23.05 8 Mara following limb. Mars precedes star 6 = 11 mag. Mars following limb. Mars precedes star fc= 11 mag. First wire. Second wire. First wire. Second wire. First wire. S Tumi wire. First wire. Second wire. k, m. 8. m. «. t. *. h. m. s. in. t. s. s. 2 9 50.8 10 3.3 25.5 25.9 2 35 49.0 26 2.0 27.2 26.9 10 59.4 11 12.3 26.0 26.2 37 5.6 37 18.4 27.0 27.6 13 7.3 12 20.3 86.0 36.3 38 18 3 38 31.9 27.7 27.1 14 8.0 14 21.2 36.1 36.1 39 34.0 39 47.0 26.3 27.3 15 56.5 16 9.4 26 1 26.6 40 5-2.0 41 5.0 37.3 27.3 17 4.6 17 17.7 26.1 26.3 42 2.0 42 15.0 27.5 27.5 18 27.2 18 40.5 29.4 25.8 43 15.0 43 27.9 27.7 27.6 19 42.3 | 19 55.0 26.1 26 4 44 29.0 44 42.1 28.0 27.6 20 52.0 21 5.0 26.4 26.6 45 41.8 45 54.9 27.5 27.3 22 2.2 22 15.3 26.4 26.9 47 12.1 47 24.7 27.9 28.3 23 12.4 23 23.3 26.6 26.9 48 27.3 48 40.5 27.9 27.7 24 56.8 25 9.4 36.5 27.0 49 40.3 49 53.3 27.9 27.9 26 6.0 26 19.0 26.2 26.6 50 53.8 51 6.8 27.9 28.0 51229.8 52 36.7 29.0 27.9 A. m. t. A a. No. of i. obs. A. m. s. Mi' HI by first wire . 2 31 31.42 Mean by si-eond wire . 3 31 44.5-3 Chronometer fast . Sid. time . . . 56.76 . 2 30 31.66 26.93 27 Chronometer fast . . Sill time 56.76 2 30 47.76 Observer, W. C. B. A a. 27.02 No. of obs. NOVEMBER «T ond US, 1849. Mars following limn. Mtr« precedes star b — 11 mag. Mars following limb. Mars precedes star li = 11 mag. First. wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. h. m. 8. m. «. 8, 8. A. m. 8. m. s. 8. s. 10 13 38.3 13 53 5 51 .3 51.3 10 32 8 5 3-2 23.6 52.5 52.4 15 17.4 15 32.5 51.3 51.4 33 40.6 34 55.7 52.3 52.3 17 53.3 18 10.4 51.4 51.6 35 9.4 35 24.5 52.2 52.2 18 29.5 18 44.5 51.5 51.5 38 28.3 38 43.5 52.7 5-2.7 20 6.3 20 21.4 51.6 51.6 40 14.5 40 29.7 52.7 5-2.6 21 40.5 21 55.7 51.9 51. « 41 5. '.3 42 7.4 52.8 52.9 23 13.5 23 28.8 52.0 51.7 43 29.3 43 4-1.5 52.7 52.8 24 54.8 25 10.0 51.8 51.8 45 49.9 46 5.0 53.0 53.1 2G 34.8 26 50.0 B.fl 52.0 47 27.1 47 43.0 52.7 M.I 28 4T>.6 29 1.8 52.3 49 11.0 49 26.3 53.3 53.2 30 36.0 30 51.2 52.3 0-2.3 51 34.0 51 49.3 53.5 68,4 53 10.4 53 31.6 53 4 53.3 54° 426 ». m. >. Mean by llr.1 wire . . 10 33 45. 13 CfcroWHnelrr ia>l . . D6.D8 . 10 31 48.14 OPPOSITION OF MARS, 1849-50, KOVEMBER «7 and »S, 1849— Coutlnutil. A a. No. of M..I1 33 A. m. *. Mi an by second wire . 10 33 3 60 Chronometer fait . . 56.96 Sid. lime . 10 33 6.6) A a. No. of >. ut». m.m 23 Man follow ing limb Man precede! Mar i = 11 mag. Man following limb. Man precedes i t-ir & 11 III -I •• Finn wire. Second wire. Kir.l wire. Second wire. Pint wire. Second wire. Pint wire. Second wire. 4. m. i. 10 59 18.9 11 187.1 m. t. M 33.7 •_• :•'.» «. 53.8 53.9 ,. (M 54.9 A. m. i. 11 4 2-1.4 . . . a, 53.9 • • Remarks. Interrupted by cloud*. Observer, VV. C. B. A. m. f. Mean by drat wire . . II a 3.23 Chronometer fast . . 57.00 fnl. lime 11 1 6.23 No. of obi. 53.87 A. m. f. Mean by second wire . 11 1 7.85 Chronometer fast . . 57.00 S d. time 11 0 10.85 A a. No. of 53.75 NOVEMBER 30, 1849. Man following limb. Man follows Deuel 405. Man following limb. Mara follows Benel 405. Flntwin. Second wire. First wire. Second wire. Firat wire. Second wire. Pint wire. Second wire. *.«. t. «. A.m. t. t. 0 47 17.9 ... 13.4 . . 0 53 33.8 ... 13.2 , . 48 15.4 • . . 13.4 . . 53 13.5 . . . 13.1 . . 49 5.5 . . . 13.3 . . 53 46.0 . . . 13.0 49 40.0 . . . 13.2 . . 54 56.0 , . . 13.0 . . 50 19.5 . . . 13.2 . . 5530.0 . . . 13.0 50 51.9 51 B.I 13.3 13.3 • • 56 8.4 56 47.8 • • • 12.9 13.0 52 1.3 . . . 13.3 • • A. m. t. Mean by first wire 052 7.63 Chronometer fast 57.16 Sid. time 0 51 10.47 Observer, G. P. B. 13.17 No. of obs. 15 DECEMBER S, 1849. Man following limb. Man follow, mar t = 14 mag. Man following limli. Man follow* star • = 14 mag. Firat wire. Prrond win. Fint wire. Second wire. Fint wire. Second wire. Firm win-. Second wire. A.M. t. m. I. m. l. m. >. A. m. >. m. t. m. >. m. i. 0 57 89.0 57 45.5 18.0 17.0 1 90 14.9 9031.5 14.7 15.5 0946.9 0 3.0 16.8 16.8 31 32.4 2948.5 IS.O 15.0 1 9 0.0 9 6.0 16.3 16.5 24 45.9 25 1.1 15.1 14.7 i 36.4 15.9 16.5 27 19.0 97 35.0 14.5 14.6 , - M 6 44.2 15.8 16.2 2993.0 99 39.3 14.1 14.3 843.0 8 59.0 16.3 16.9 31 18.3 81 31.5 14.1 14.5 10 48.9 11 5.0 16.0 16.1 3351.8 34 8.0 14.6 14.6 1313.8 1399.9 15.8 15.9 36 8.8 36 94.7 14.1 14.9 IS 18.3 15 34.4 15.3 15.7 38 15.9 38 31.8 13.8 14.0 1795.8 1741.8 14.9 15.6 4025.0 40 41.0 14.0 14.0 AT THE OBSERVATORY, CAMBRIDGE, MASS. OKCEMUEK 5, 1849— Continued. Remarks. The star of comparison is double, and is 1' north of Mars. Observer, W. C. B. 427 A a. Nn. of A. m. «. m. «. obn. can t>y first wire . 1 18 59.40 Mean Chronometer fast 57.00 Chroni Sid. tim« . . . . 1 18 9.40 1 15.15 00 Sid. til A.m. t. Mean by second wire 1 19 15.53 rfast . 57.00 Sid. time . . 1 18 18.53 A a. in. M. I 15.39 No. of obs. Mars following limb. Mars follows star 6 = 14 mag. Mars following limb. Mars follows star 6 = 14 mag. First wire. Second wire. First wire. Second wire. First wire. Second'wire. First wire. Second wire. h. m. f. m. t. f. «. A. m. t. m. *. i. S. 1 56 46.5 57 2.5 13.2 13.0 2 3 19.0 3 34.9 12.3 12.2 58 54.9 59 10.8 13.1 12.7 6 19.8 6 35.9 11.9 12.1 3 1 9.8 1 25.7 12.6 12.7 8 35.3 8 51.3 12.0 12.0 Mean by first wire Chronometer fast Sid. lime . . . A. m. t. 2 2 30.68 57.00 9 1 33.88 No. of obs. 12.35 A. m. >. Mean by second wire 2 2 46.83 Chronometer fast . 57.00 Sid. time . .21 49.83 A a. No. of t. obs. 12.45 DECEMBER G, 1849. Man following limb. Mars follows star x = 10 mag. Mars following limb. Mars follows star x — 10 mag. First wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. i. m. t. t. i. A.m. i. m. s. f. «. 1 58 44.5 57 0.5 37.7 37.7 S 18 31.7 18 47.8 36.8 36.0 58 15.4 58 31.5 37.1 37.3 19 59.0 20 15.0 35.8 35.8 2 2 11.3 2 27.3 37.0 36.9 21 19.9 21 35.8 35.7 35.8 3 52.2 4 8.0 37.2 37.2 23 20.8 23 36.8 35.5 35.6 5 18.0 5 34.0 37.1 36.7 24 44.0 25 0.0 35.6 35.7 7 3.0 7 19.0 36.9 37.0 28 7.5 3623.4 35.5 35.4 8 28.9 8 45.0 36.7 36.7 27 33.1 27 49.0 35.1 35.1 9 55.0 10 11.0 36.5 36.5 29 3.0 29 18.9 36.8 35.3 11 29.0 11 45.0 36.3 36.5 30 26.6 30 43.5 35.2 34.9 12 57.1 13 13.0 36.6 36.3 31 51.7 32 7.6 35.3 35.1 14 53.8 15 9.3 36.7 36.3 33 19.0 33 34.8 35.0 34.8 16 27.2 16 43.2 36.0 36.2 34 46.0 35 1.9 35.0 34.9 Remarks. A bright star follows x by 9>., and ia 8" south of it. Observer, Vf. C. B. Mean by first wire Chronometer fast Bid. time . . . A. m. 2 17 >. 1.57 57.47 2 16 4.10 A a. 36.16 No. of obs. 24 A. m. i. Mean by second wire 2 17 17.51 Chronometer fast . 57.47 Sid. time . . . . 2 16 20.01 An. 36.07 No. of obs. 24 128 OPPOSITION OF MARK, 1849 All. DKCKUBER O, 1840-foiKliiiird. Man following limb. M«ra follow. iur t . 14 m«f (?) Man fiitlnwinx lluib. Man follow* star I .- 14 mag-O Flnl win. Second wire. l,i.i wire. '. win. .111.- Si r(.nd wire. r'nM win-. Second wire. A.m. i. m. t. «. t. A. in. t. in. «. f. f. a 49 9.9 4985.0 M.* 94 7 8 58 41.7 M 57.7 1M.5 94.1 50 1.7 SO 17 5 94.7 M.fl 58 44.0 59 0.0 33.8 34.0 5353.0 53 9.0 33.9 94.0 3 1 17.8 1 33.8 33.6 94.1 MS7.3 55 13.3 H.I 94.0 Remarks. The pur ii the same u that utcd nn ll:c 5ih. OtaKnrrr, W. C. B. Mean by first wire Chronometer fait . Bid. time a.m. i. 3 54 49.34 57.48 95351.76 No. of 2-1.13 a.m. i. Mean by second wire . 2 55 5.17 Chronometer fast . . 57.48 Sid. time . 3 54 7.69 tin. at ot». -.: -.'-I Mar* following limb. Man precedes star t = 14 mag. Miirs following limb. Mare precedes star 6 = 14 mag. Pint wire. Second wire. First wire. Second wire. Pint wire. Second wire. First wire. Second wire. A.m. «. m. «. t. i. h. m. i. m. t. •. «. . • • 49 35.0 . . 36.3 3 56 41.7 56 57.7 25.7 35.8 . * • 50 17.5 . 35.5 58 44.0 59 0.0 95.8 35.6 9 5953.0 53 9.0 35.8 35.8 :i l 17.8 1 33.8 36.5 36.4 5457.3 55 13.3 95.5 26.5 A.m. I. Mean by Bret wire . a 56 54.78 Chronometer nut . . 57.48 Hid. limf . 9 55 57.38 A a. Nn. of A m. f. Mrnn by second wire . 355 5.17 Chronometer fait . . 57.48 Sid. time . . . . 3 54 7.69 A a. No. of •. obs. I>K( KMIiKH O niiil 7, 1 •>!•.'. Man following limb. Man precedes itar t = 14 mag. Man following limb. Man precedes uar * = 14 mag. Pint wire. Second wire. Pint wire. Serond wire. Pint win-. Suconil wire. nii-i \\iii'. Second wire. A.IH. 1. 10 44 8.0 46 9.9 47 54.0 m. i. 44 94.0 4635.3 48 11.3 *. 58.9 59.0 59.3 t. 58.8 58.8 59.0 «. m. I. 10 49 41.9 51 30.3 53 31.0 m. t. 49 57.7 51 46.3 63 37.0 t. 58.9 59.0 59.3 f. 59.0 59.0 59.3 Remarks. The star of comparison Is the name as thnt used on the 5lh, and called i. Observer, W. C. B. M**n by flrrt wire A. m. f. 10 48 47.33 57.58 10 47 49.80 An. 50.05 N • oba. A.m. l. Mtan by second wire . 10 49 3.60 Chronometer fast . . 57.58 Bid. i . 10 41 6.02 A a. t. ' - No. of Obi. AT THE OBSERVATORY, CAMBRIDGE, MASS. DECEMBER C. and 7, 1S49. 429 Mars following limli. Mars precedes star x = 10 mag. Mars following limb. Mars precedes star x = 10 mag. First wire. Second wire. First wire. Second win1. First wire. Second wire. First wire. Second wire. A. m. a. in. x. ». f. A. in. S. m. «. 5. 1. 11 7 17.0 . . . 2.1 . 11 23 40 0 23 56.0 2.0 2.10 7 57.0 . . . 1.5 24 29.0 24 45.0 2.05 2.05 9 3.3 . . . 1.3 . 25 21.0 25 37.0 2.2 2.15 9 51.0 1.4 27 4.0 27 20.0 2.4 2.45 10 -21.0 . . . 1.5 . 28 19.0 28 35.0 2.5 2.55 12 9.5 12 25.5 1.5 .5 £9 41.0 29 57.0 2.5 2.55 13 11.0 13 17.0 1.35 .5 30 34.0 30 50.0 2.65 2.55 13 01.0 14 7.0 1.6 .55 31 23.0 31 38.0 2.7 2.65 14 42.0 14 58.0 1.5 .5 33 41.0 33 57.0 2.65 2.65 1529.0 15 45.0 1.55 .55 33 52.0 34 8.0 2.6 2.85 16 19.0 16 35.0 1.55 .5 34 40.0 34 56.0 2.9 3.00 17 46.0 18 39.0 18 2.0 18 55.0 i.es 1.6 .6 .6 35 22.0 36 24.0 35 38.0 36 4*0.0 3.05 3.05 2.05 2.15 20 39.0 20 55.0 1.55 .6 37 6.0 37 22.0 3.15 2.10 21 22.0 21 38.0 1.75 1.7 37 48.0 38 4.0 3.15 2.85 23 11.0 22 27.0 1.9 1.9 39 4.0 39 20.0 3.2 2.10 22 56.0 23 12.0 2.0 2.05 39 53.0 40 90 3.1 2.15 Remarks. Star is 3' north of Man, and was called z — 10 mag. December 6, P. M. Observer, W. C. B. A. m. 9. Mean by first wire . 11 23 33.93 Chronometer fast . 57.56 Sid. time . . 11 22 36.35 2.15 No. of obs. 34 h. m, t, Mean by second wire 11 26 20.98 Chronometer fast . 57.58 Sid. time . . 11 25 23.40 2.27 * No. of obs. 29 DECEMBER 7, 1819. Mars following limb. Mars follows star = 11 mag. Mara following limb. Mars follow* star = 11 mag. First wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. i. m. c. t. s. A. m. f. m. *. «. ». 0 3823.8 38 40.0 36.5 36.2 0 55 35.1 55 51.2 35.3 35.3 40 0.5 40 16.7 36.0 36.1 57 16.8 57 32.7 35.2 35.2 41 26.0 41 42.0 36.7 36.6 58 39.1 58 55.3 35.1 35.3 42 51.5 43 7.5 36.5 36.1 1 0 5.5 0 21.4 35.2 35.0 44 17.2 44 33.3 36.2 35.9 3 27.0 3 43.0 34.1 34.3 45 57.7 46 13.6 36.3 36.1 4 48.9 5 5.0 34.4 35.0 47 26.4 47 43.0 35.1 36.0 C 9.9 6 26.0 34.4 34.4 48 55.0 49 11.0 35.7 35.8 728.6 7 44.7 34.5 34.7 50 19.3 50 35.4 35.5 35.7 8 55.9 9 12.0 34.4 34.5 51 47.9 Kt 3.8 35.9 35.8 10 16.0 10 31.9 34.0 34.0 Remarks. The star is 2' north of Mars. Observer, W. C. B. Mean by first wire Chronometer fast Bid. time A. m. I. 0 54 12.45 57.75 0 53 14 70 No. of obs. 35.37 A. m. s. Mean by second wire 0 54 28.47 Chronometer fast . 57.75 Sid. tlmir . . . 0 53 30.73 A a. 33.40 No. of obs. 20 ISO OPPOSITION OF MAKS, 1849-50, I)K< KMIII-.lt 7. 1840-roittlnurrl. MM following talk. Man preccdcf >tar = 11 oaf. Man following limb. Man precede* Mar = 11 mag. Pint win. BccoBdwIre. Pint win. ! Second win. Fintwire. Second wire. Fint wire. Second wire. A. «. .. m. f. i. i. *. m. i. M. *. t. •. 1 36«.0 38 58.0 39.7 33.5 1 48 11.1 4897.1 31.6 31.7 3757.5 38 13.8 32.8 33.3 4995.9 49 42.0 31.6 31.6 39 11.5 3937.4 33.9 33.3 50 45.5 51 1.6 31.4 31.4 •40 30.5 40 40.a 39.0 38. 3 51 58.5 99 14.5 31.6 31.5 41 38.0 41 54.0 33.0 31.9 53 11.0 5397.0 31.5 31.5 • 4M 43 9.7 31.4 M.I 54 17.9 54 33.9 31.3 31.3 44 48.8 45 9.8 31.7 31.9 55 31.0 55 47.0 31.9 31.0 4558.3 46 14.4 31.7 31.6 56 45.6 57 1.7 31.9 31.1 47 4.0 47 20.1 31.8 31.7 58 3.0 58 19.0 30.8 30.8 Remarks. CoM and windy ; image* unMeady. The Mar or companion it north of a red ttar; difference of right ascension = 9.6>. It alw precede* another Mar of the I Uii mag. by 94. 5«. ; difference of declination = 4'. It clouded before the morning observation*. Obicrver, G. P. B. A a. No. of *. ob*. h. m. .. A a. No. of t. oh*. A. m. f. Mean by Ant wire . Chronometer fait . . 1 47 29.19 57.75 Mean by seeomi wire Chronometer fast . . 1 47 55.13 57.75 Bid. time . . . . 1 46 31.37 31.66 18 Sid. time . . . . 1 46 47.38 31.64 18 m:< i-.Miir.ic H, 1840. Man following limb. Mara precede* star = 11 mag. Man following limb. Man precede* «ar = 11 mag. Fintwire. Second wire. Fintwire. Second wire. Fint wire. Second wire. Fintwire. Second wire. V m. .. m. t. m. i. m. f. ». m. t. m. «. m. •. IN. 1. 8 19 19.0 19 37.9 8.8 1 .1 3 39 57.6 30 13.5 9.9 1 9.5 91 11.7 SI 97.6 8.9 1 .3 31 59.8 •Jl 15.4 9.6 1 9.9 93 7.9 9394.0 9.1 1 .0 34 23.3 34 39.3 10. a 1 10.9 95 9.8 95 19.9 9.9 1 .5 36 39.9 36 48.3 10.3 1 10.3 97 59.9 98 15.0 9.3 I .5 3936.5 3953.5 10.6 1 10.5 Remarks. Star of companion i> the lame u that used on the 7th. ObMrrer, W. C. B. Mean by Ant wire Chronometer fart Bid. HUM- . . . ». m. .. 998 54.30 57.97 9 97 56.03 A a. 1 9.09 No.oT Ami. 10 Mean by necond wire . riironoineler fast . . Bid. time .... 3 99 10.97 57.97 9 28 13.30 1 9.67 No. of ob*. 10 Man following limb. Man follow* Mar = 11 mag. Man following limb. Man follow* star = 11 mag. Pint wire. Second wire. Fint win. Second wire. Fintwire. Second wire. Fint wire. Second wire. *,».!. m. f. i. i. A. m. t. m. f. a, a, 84850.5 50 6.5 41.4 41.4 9 53 46.1 54 9.0 41.0 41.0 51 10.9 51 96.8 41.1 41.1 55 3.0 55 19.0 40.9 40.8 SB 97. 7 M 43.6 41.9 41.1 56 37.9 56 53.0 40.9 40.4 Mean by Ant wire ». M. >. t 53 9.93 67.97 U 52 1I.3S A*. 41.0 No. of ob*. A. in. f. Mean by «econd wire . 35395.15 Chronometer fait . . 57.97 Bid. lime .... 95397.18 A a. 40. VJ No. of ob*. AT THE OBSERVATORY, CAMBRIDGE, MASS. DECEMBER 11, 1849. 431 Mars following limb. Mars follows star — 10 mng. Mars following limb. Mars follows stnr = 10 mag. First win;. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A. m. s. m. s. 8. 8. A. m. t. m. t. 5. s. 23 58 52.1 59 8.1 35.2 35.1 0 1928.1 19 44.0 33.3 33.2 0 0 33.3 0 49.1 35.3 35.1 20 59.6 21 15.7 33.6 33.5 2 15.8 2 33.0 34.8 35.0 22 20.8 22 S7.0 33.6 33.2 3 31.3 3 50.3 34.7 34.9 23 40.5 23 56.7 33.5 33.9 4 55.0 5 11.4 34.3 34.6 25 7.9 25 24.0 33.3 33.2 6 34.6 6 50.8 34.6 34 5 26 29.6 26 45.5 32.7 32.9 7 53.0 8 9.0 34.5 34.5 28 58.7 29 14.0 33.1 32.5 9 M.9 8 30.8 34.4 34.4 30 18.2 30 34.3 32.4 33.7 10 33.1 10 49.2 34.1 34.2 31 37.8 31 54.0 33.8 33.0 1229.9 12 45.8 34.1 34.0 33 8.0 33 24.0 33.7 33.0 1354.0 14 10.0 34.1 34.0 34 29.6 31 45.7 32.3 32.4 1530.7 1536.8 33.7 33.8 35 54.0 36 9.8 32.9 3-3.3 Remarks. High wind. Telescope disturbed. Observer, W. C. B. A. m. t . A a. l. No. of Ohd. Mean by first wire . 0 17 26.81 Mean b Chronometer fast . Sid. time . 57.70 16 29.11 33.76 24 Chronoi Sid. Mm A. in. i. Mean by second wire . 0 17 42. P3 fast . . 57.70 16 45.13 A a. 33.79 No. of obs. Man following limb. Man fullowi star a = 10 mag. Mars following limb. Mars follows star ./ • HI mag. l'ir-i wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second win . A.m. t. m. t. t. f. h. m. s. m. f. *. t. 1 8 19.3 8 35.2 30 .a 30.1 1 90 2.8 20 18.8 29.2 29.3 9 40.4 9 56.4 29.7 29.9 21 18.6 21 34.8 29.1 29.2 10 53 0 11 9.1 30.0 30 1 22 36.9 22 52.8 29.1 29.0 11 57.9 12 14.0 29.8 29.7 23 59.5 24 14.4 29.0 27.8 13 20.0 13 36.9 29.5 29 7 25 15.8 25 31.8 28.8 28.8 14 39.8 14 55.6 29.8 29.7 26 28.0 26 44.3 28.5 28.8 15 49.9 16 6.0 29.2 89.5 27 49.5 28 5.3 29.0 38.8 17 1.5 17 17.5 29.2 39.4 29 9.0 29 25.0 28.5 28.1 18 11.8 18 27.8 29.4 29.5 30 25.8 ! 30 41.9 28 3 28.4 Remarks. Cold, windy, and very bad vision. Observer, G. P. B. Mean by first wise Chronometer fast Sid. time A. m. r. . 1 19 16.63 . 57.68 1 18 18.95 A a. 29.25 No. of ubn. 18 A. m. «. Mean by second wire . 1 19 32.65 Chronometer fast . . 57.68 Sid. time . . 1 18 34.97 29.21 No. of obs. 18 Mnrs following limb. Mars precedes star a = 10 mag. Mars follo\ving limb. Mars precedes star ./Id mag. First wire. Second wire. First wire. Second wire. First wire. Second wire. First wire. Second wire. A.m. i. m. f. f. t. A. m. s. m. s. «. t. 1 34 11.0 34 27.0 27.9 38.0 ) 38 9.9 38 25.8 27.7 27.6 3533.8 35 40 0 28.0 27.8 39 21.5 39 37.6 27.6 28.0 36 52.1 37 8.0 27.9 38.0 40 52.0 41 8.0 27.8 27.5 A. m. «. Mean by first wire . . 1 37 28.43 Chronometer fast . . 57.68 Hid. time 1 36 30.74 An. 27.83 No. of obs. A. m. ». Moiin by second wire . 1 37 44.40 Chronometer fae>t . . 57.68 Bid. time 1 36 46.73 No. of obs. 27.82 132 OIM'OSITION OF MAUS, ISl'.l "ill. DECKMBEll 11 and l'», 184O. Man precede* rtar a = 10 m.i«. Mar. following lin.b. Mm precede* Mv « = 10 mag. Fim wire. ~ 1'it.i wire. wire. Second wiic. I'l'-i wire. Second win*. *. ». «. 10 46 41.8 m. «. 47 3.1 •. 13.7 A. m. >. 10 48 25.0 m. i. 4838.8 i. .... 13.3 A. m. t. Mean by terrmd wire 10 47 49. M Chronometer fail 57.09 Bui. time . . 10 48 52. W A i. 13.50 No. of Ui". Man following limb. Man precede* >tar a = 10 mag. Man follow in- lunli. Man precede* Mar a = 10 mag. Pint wire. Second wire. Fir.-t win1. Second wire. First wire. Second win1. l'ir 1 u ur. S''i'i>n,I win'. A. m. i. m. >. f. t. A. Hi. f. m. f. f. I. 10 51 41.9 D.8 13.4 13.4 11 596.8 5 51.0 15.9 14.3 53 19.3 5336.3 13.7 13.8 6 50.1 7 13.9 14.3 14.6 51 18.3 54 4i.O 13.8 14.9 8 7.8 831.6 14.4 11. 'J 55 40.7 56 4.3 13.3 13.8 10 41.7 11 5.5 14.6 14.8 X 56.8 . . . 14.2 11 50.3 19 14.6 14.7 14.6 57 43.6 58 7.5 M.I 13.7 13 4.3 1398.0 14.7 14.3 11 1 11.8 1 36.0 14.9 14.3 14 4.3 1498.6 14.9 15.4 | .. 3 20.0 11.3 14.5 15 39.9 . . . 15.0 4 8.1 4 33.3 14.9 14.4 16 39.9 17 9.7 15.8 15.3 18 6.3 1899.0 14.9 l.ri.5 A. m. i. Mean by first wire . 11 5 10.58 Chronometer (a»t . 57.08 Sid. lime . . 11 4 13.50 A a. No. of f. obs. ! i.et 19 A. m. f. Mean by Mcond wire 11 596.47 Chronometer fast . 57.08 Sid. time . . . 11 4 39.39 A o. No. of 14.46 17 Observer, W. C. B. Man following limb. Man precede* star « = 10 mag. Man following limb. Man precedes star « = 10 mag. Kir>t wire. Second wire. Finn wire. Second wire. I'ir.l \\in . Second wire. Firil wire. Srri.ml « irr. k.m. I. 11 S3 47.3 94 47.1 . f. 15.8 15.8 • • V m. >. 11 96 16.8 97 46.8 m. i. 27 4.7 2837.0 a. 15.9 15.3 f. 15.3 16.0 A m. I. M.-anliyfmtwirr . 112539.48 Clininiiiu'-ti-r fn«t . .sid.iiinc . . II -Jl 41. 7d A a. No. of ». m. «. Mean liy urcunil wire 11 U7 50.85 ChrcTiMincter fast . Hid. Urn.- . . It 2C 53.15 A a. 15.65 No at . : . i n, r. \V.C. B. >l n« f