a 2 A . ' PN oF | fii - a Digitized by the Internet Archive in 2010 with funding from University of Toronto http://www.archive.org/details/canadianfieldnat09otta ve OTTAWA NATURALIST. BEING VOL. XI OF THE TRANSACTIONS OF THE (Organized: March, 1879. Incorporated: March, 1884.) ee tt OTTAWA, CANADA. m PAYNTER & ABBOTT, 1895. Tue Orrawa NATURALIST, 3 ipot OF MEMBERS. , ' Allan, Hon. Geo. W., D.C.Z.,7.R.G.S., emery FG. , (Lh oronto, ) ; Allan, W. A. fee tieavi.. M7.A., D. «Sc., F.G.S., F.G. S.A. Ami, Mrs. H. M. Anderson, JZzeut.-Col. W. P., C, E., WAT CT: Anderson, Mrs. W.P. _ Armstrong, John R. Ballantyne, Miss I. M. Ballantyne, James. Baptie, George, A/7.4., M7. D. Barlow, A.E., 47.A., F.G.S7A. Bate, H. Gerald. Bate, H. N. Beddoe, Chas. H. - Bell, E. B. Bell, Robert, B..Afp.Sc., .D., LL.D., Fie. FG: 5. é: Bethune, Rev. C.J. S., 17.4.; F.R.S.C., (Port Hope, Ont. ) Bigger, Howell. Billings, W. R. Blanchet, W. H. Boardman, Wm. F. Bolton, Rev. C. E., (Paris, Ont.) Bolton, Miss Eliza. Borden, F. W., IN:S.) Boville, T. C., B.A. Bowen, Miss Alice, (Quebec. ) Bowerman, J. T., 4.4 Bowles, W. C. Brewster, W., (Cambridge, Mass., Broadbent, Ralph L. Brown, Mrs. R. D. Brumell, H. Peareth, /.G.S.A. mecca fo VWVe.4 07. D.; 2.R.S.C., (Montreal.) Burland, J. H.,, \2.4fp.Sc., &.C.S: Campbell, A. M., (Perth, Ont.) Campbell, R. H. Chubbuck, C. E. D. Cornu, Felix, 47. D., (Montreal.) Cousens, W. C., AZ. D. Cowley, R. H., B.A. Craig, John. Craig, Wm., (Russell, Ont.) Coughlin, Mrs. M. A Dawson,G.M., C.47.G., LL.D.,F.R.S., DS., Assoc. R.S.M.,F.GS.,F.RS.C. Dawson, S. E., Zzt.D. DEC, Uss:) M.D., M.P., (Canning, Dickieson, M. G. Dimock, W. D., B.A., M@.L.A,, (Truro, N.S.) Dixon, F. A. Dowling, B. D., 2.4.Sc. Doyon, J. A. Dresser, J. A. B.A. (Aylmer, Que.) Dulau & Co., (London. ) Dwight, Jonathan, Jr.,47.D., Baton; Ds Ie Vv. Elkins, A. W., C.Z., £.Z.S,, (Lennox- ville, Que.) Bs; RoW. fe GeSee. Ells, Mrs. R. W. Evans, Jno. D., C.£., Ewart, D. Fedarb, F. J. Ferrier, W. F., B.A.Se. aa Ferrier, Mrs. W. F. , Fleming, Sandford, C. 47.G., C. £., FR i Ole Be heaaes Fletcher, Miss Cub. Se Fletcher, James, 7.Z.S., /.R.S.C. Fletcher, Mrs. J. Fortescue, IL; Fortescue, Mrs. L. : Fuller, Thos., 2.C.A. “a Gallup, A. H. Gemmell, R. E. Gilmour, T. Glashan, J. C. Gobeil A., B.A. Grant, Szr J. A. AVC. G{MeEDS FRCS, Edits FR. S.C. btaens Grist, Henry. Grist, Miss Mary, L. Hardie, John. | Hardie, Miss Jessie. Halkett, Andrew. Harmer, Miss G., (Hintonburgh, Ont.) Harmon, Miss A. Maria. Harrington, W. Hague, 7. 2..S.C. Harrington, Mrs. W. HH. Harrison, Edward. Hay, Sr., George Hay, G. U., #.#.S.C., (St. John, N.B.) Hayter, F., B.A. Herridge., Rev. W. T., B.A., B.D. Hodgins, John. Hope, James. Hughes, Chas., SNe sk ) Jenkins, S. J., B.+ (New York.) (Trenton, Ont.) 2 Johnston, J. F. ts 4 Johnston, Robt. Jones, C. J. Kearns, J. C. ASAe List oF MEMBERS. Keefer, Thos. C., C.Z., F.2.S.C. Keeley, D. H. Kingston, A. G. Klotz, Oskar. Klock, Alonzo 13 BA SG Lambart, ov. Lambart, Hon. Icambe, L.. M., Lawson, Prof. jad tet Ox Came Fie Lees, Miss V. Lees, W. A. D. Lees, Mrs. W. Lehmann, A., ia); S.A. LeSueur, W. D., W. D, LeSueur, Mrs. Lester, Miss M. ls Es He GRIER FENG Snel. Gi eee Latchford, F. R. »2.A Gs Pes Le Phe RS. C., (Halifax-) Lee, Miss Katharine. Lees, Miss Jessie. Ae Ly: B.S.A., (Baton Rouge, B.A. EE Library, Leg. Assembly, (Quebec.) Library of Parliament. Lindsay A. Living, Miss A. Marion. Living, Miss M. Lovick, Miss G. Lowe, John. MacCabe, J. A., ZZ.D., F.R.S.C. McConnell, R. G., B.4., F.G.S.A. MacCraken, John I., 8.4 MacKay, A. H. (Halifax. ) BIA. BSC. MacLaughlin, T. J. MacFarlane, T., WEE 5, tates Macleod, -H: A. B., Cz. McLean, J. D. McDougall, A. McDougall, P. A., McElhinney, M. HB. bu2; M.D. |e McEvoy, Jas., B.A.Sc. McGill, A., B.Ad., B.Sc. McLaughlin, S. McMinn, W. J. McNab, Chas. R., B.A. McNaughton, H. F. John, J4Z4A., Macoun, Prof. is thasds Gr Macoun, J. M. Marsh, H. S., Matheson, D. Mearns, Dr. E. a5 10C, A (U.S.A.) F. McInnes, Wm., 2.A., 7.G.S.A. eres pa Es He Meneilly, W. J., (Toronto.) Mills, Miss Margaret A. O’Brien, S. E. - Odell, W. S. Panet, Maurice. Paquet, F. X. Perley, Wajor Henry F., C.Z. Poirier, How. P. S., A7.A., (Shédiac, N.B.) Pratt HOE. A Prévost, L. C., AZ. D: Prince, /ro/. E. B. BAS ees Robert, J. A., &.A.Sc. (Montreal.) “Robertson, Prof. J. W. Robertson, N. Robins, R. N., (Sherbrooke, Que.) Ross, Ws: Ass 7-4 Gs Rothwell, Miss Lina. Saint-Cyr, D. N., (Quebec.) Saunders, Fredk. A Saunders, Prof. W., F.L.S., F.RiSies FF: GOS: ; Saunders, W. E., (London, Ont.) Scott, Duncan Campbell. Scott, Fred., (Toronto.) Scott,, P., JZ. 2., (Southampton, Ont.) Scott, W. Scott, W., &.A., (Toronto.) Scott, (Wale ae Scott, Miss Mary. Selwyn, A. R. Ci, CHEG Eee FLR.S., FE: RS. C.F GES alae Senate of Canada, The. Shenick, Miss A., B.Sc. Shutt, FT: A.A. PEGG Simpson, Willibert. Sims. R. J. Sinclair, S. B., B.A. Small, H. B. Small, H. Beaumont, MD. Smith, Miss Eloise. Smith, Miss Ethel M. Steckel, R , C.Z. Summerby, Wm. J., 47.A., (Russell, Ont.) Sutherland, J. C., (Richmond, Que.) Sweetland, John, 47D. Symes, Miss E. Symes, P. B., A.K.C. Taylor, Rez. G. W., F.R.S.C, (Victoria, BC) Thayne, E. Stewart. Thompson, T. W. Thorburn, John, 47.4., ZZ.D. Topley, EIN, Topley, Mrs. H. N. Topley, Mrs. W. J. Treadwell, C. W., B.A., B.C.L. 16 SIXTEENTH ANNUAL REPORT. Three successful excursions were held in 1894, under the auspices of the club. . 1. Chelsea.—The first of these was to Chelsea, on the Gatineau Valley R.R., in May, when a number of Fellows of the Royal Society joined us as guests of the Club; 218 persons were present at this excursion which proved both enjoyable and profitable. 2. Wakefield.—This excursion was also largely attended. Some interesting work was done and valuable information obtained by members of the club. 3. Gadetta.—The third excursion took place at this very interesting new locality for the club. The opening of the Ottawa, Amprior & Parry Sound Railway has afforded special facilities to examine the region west of Ottawa and south of the Canadian Pacific Railway track. Besides the large and general excursions of the club held at more or less lengthy intervals during the summer, a number of members have availed themselves of the sub-excursion scheme, which has always proved so important to the welfare of the club in this district. Asarule much better and closer work can be accomplished when a few members meet together and visit a certain definite locality with a special object in view. The Council recommends these sub-excursious to all the members of the club. THE Orrawa NATURALIST has been published by the Editor, Mr. W. H. Harrington. ‘We regret, however, to add, that the January number was not issued, but if the increased interest taken during the past year in recording facts and observations in this district and elsewhere be an earnest of what the members of the club propose to do, then the success of the official organ of our club is assured for the future,and the NATURALIST will be filled with the records of observers in all parts of Canada since our membership counts most of the leading men interested in the scientific growth and development of ourcountry, THE Orrawa NATURALIST is nota purely local publication. A perusal of the volume of 162 pages, just published, amply shows the wide scope of its articles. Our exchange list is an important one and the Library which the Tue Orrawa NATURALIST. ty ub possess is indicative of the high appreciation of the work done. From many quarters we hear of congratulatory remarks on our work and _ especially on our simple but practical methods of organizing for work, q Seven soirées were held during the past winter, which as you are 4 all aware have been remarkably well attended and proved highly : interesting. ) The following is the programme as carried out by the Club during the past season, 1894-95. PROGRAMME OF SOIREES. Dec. 6th, 1894. MICROSCOPICAL SOIREE. r Inaugural Remarks, Dr. G. M. Dawson, F.R.S.; A Grain of Wheat, Prof. W. Saunders ; Microscopic structures in young fishes, etc., Prof. E. E. Prince, B.A, F.LS. Microscopes and slides were kindly - furnished by Messrs. J. F. Whiteaves, Wm. Scott, G. M. Dawson, W. S. - Odell, F. T. Shutt, A. Halkett, T. C. Weston, D. B. Dowling, W. - Saunders, E. E. Prince, W. F. Ferrier, R. W. Ells and H. M. Ami. Dec. 2oth, 1894. GEOLOGY. 1. How Rocks are Formed, Dr. R. W. Ells, F.R.S.C. 2. Crystals. (Illustrated by Models}, W. F. Ferrier, B.A.Sc. 3. Report of the - Geological Branch, H. M. Ami. 4. On the Shumardia limestones of - Levis, Que, T. C. Weston, F.G.S.A. 5. Description of a new Caddis- | fly (Phryganea cecta) from the Pleistocene clays of Green’s Creek, Prof. S. H. Scudder. Jan. 17th, 1895. BOTANY. 1. Flowering of Plants, Mr. R. B. Whyte. 2. The Growth and af ~ Development of Fruit, Mr. J. Craig. Jan. 31st, 1895. CONCHOLOGY. 1. The present condition of Canadian Conchology, Rev. G. W. Taylor, F.R.S.C. 2. How Shells grow, F. R. Latchford, B.A. 3. How to collect Shells, Prof. J. Macoun, F.L.S. 4. Report of the Concho- _ logical Section, Mr. Fletcher. - Feb. 14th, 1895. ENTOMOLOGY | 1. How Insects grow, Mr. James Fletcher, F.L.S. 2. Some Te ¢ i a - 18 SIXTEENTH ANNUAL REPORT. Insect Works, Mr. W. H. Harrington, F.R.S.C. 3. Report of the Entomological Branch, Mr. J. Fletcher. 4. Noticeofa Monograph on Canadian Spiders by Emerton, H. M. Ami. - Feb. 28th, 1895. ZOOLOGY. “Qn some protective peculiarities in young animals,” Prof. E. E. Prince, B.A., F.L.S. Illustrated lecture. March 14th, 1895. ORNITHOLOGY. 1. “Town Birds,” Mr. W. A. D. Lees. 2. How to Study Bird- life, Prof. Macoun, M.A. 3. ‘‘ Feathers,” Mr. A. G. Kingston. All these lectures were illustrated with microscopic sections or specimens and interesting discussions followed their delivery. Through the kindness of Dr. McCabe, Principal of the Normal School, Ottawa, the club has held its soirées in the lecture rooms of that institution. The thanks of the Council and Club are unanimously due to Dr. McCabe for his kindness and courtesy. The Council in resigning its trust for the year, leaves the considera- tion of the future character of the work again in the hands of the members generally. It is possible that recommendations and suggestions may have occurred to many of the members, the adoption of which would add to the usefulness and still further popularize the work of the club. This meeting is the occasion upon which the future policy of the club should be fully considered. All of which is respectfully submitted on behalf of the Council. G. M. Dawson, Henry M. Amt, President, Secretary. Ottawa, 19th March, 1895. See ~*~ ’ —— a sd Tue Orrawa NATURALIST. 19 OTTAWA FIELD-NATURALISTS’ CLUB. | ‘TREASURER’S STATEMENT, CLUB YEAR ENDING 19TH MARCH, 1895 RECEIPTS. p balanee on hand from 1893-94................ $ 25 92 _ Subscription fees received— | Arrears of previous years.:........ $ 48 00 BEPESIECHE (YOar 22a... ss sae 118 00 For 1895-96, paid in advance ...... 8 00 — 174 00 Received for advertisements in “ Naturalist”...... 37 00 < SN aenraltsts:”- SOle to... ho i ee 2 20 ¢ *‘ Authors’ Extras” including arrears... 17 25 Meee wrmceeds Of Excursions .............-.. sess 7. iG $263 47 EXPENDITURE, Printing “Ottawa Naturalist,” Vol. VIII........ $192 28 Ee re ee 15 93 See atitnors Extras” ol. ee ee eee II 30 “Flora Ottawaénsis, balance to date ...... I 20 General Printing and Stationery ................ 13 92 NM rg ed os oi as 2 wien ms Wa tees tee 1 66 Expenses of Soirées ............ ee eee IO 30 $249 59 Sueeeees ear ado aie... se as 13 88 1 7 eae ae A. G. KINGSTON, Treasurer. Audited and found correct. Ottawa East, 4th April, 1895. Wm. A.D. LE&Es, J. BALLANTYNE, } Auditors _—s =~. 20 Nores, Revizrws AND CoMMENTs. NOTES, REVIEWS, AND COMMENTS. Geology.—Etts, R. W., LL.D., F.R.S.C.—* The Potsdam and Calcifercus formations of Quebec and Eastern Ontario.” Advance copy and Ex. Trans. Roy. Soc. Canada, Vol. XI., Section IV., pp. 21-30, 1895— (distributed, 12th February 1895.) In this paper, the geographical distribution, local characters, palzontological as well as stratigraphical relations of the Potsdam and Calciferous formations as they are found in Eastern Canada in particu- lar and in Eastern America in general are discussed. Ur. Ells points out also the relations of these two formations to the Levis and Upper Sillery. He correlates the Calciferous with the Levis of the vicinity of Quebec and the Potsdam with the Upper Sillery of the same region. He places all these in the Ordovician system—but refers the Lower Siliery to the Cambrian epoch. Dr. Ells concludes by stating : ‘It would appear, therefore, from all the evidence at cur disposal, that the real line of division between the Cambrian and the Cambro-Silurian system should be placed at the close of the Georgia slate and Red Sandrock divisions, and that the series from the base of the typical Potsdam to the summit of the Utica and Hudson River formations should constitute the system known as Cambro-Silurian or Ordovician. Ami, H. M.—‘“‘ Wotes on Canadian Fossil Bryozoa.” Ex. Can. Ree. Science, Vol. VI., No. 4, pp. 222-229, Montreal, January, 1895. This paper is practically a 1ésumé of Prof. Ulrich’s work on the 3ryozoa of the J.ower Silurian in Minnesota,* in which attention is called to thirty-three species from Canada comprising twenty-one genera. Six additional species of Bryozoa referable to as many genera are added to the above, but these were described by Prof. Ulrich’s in Part II. of the Paleontology of Illinois, Section VI. The localities in Canada from which the species recorded were obtained, the horizon, references and other points of interest regarding these are given in them notes. . ~~ *Vol. II] of Final Rep. Geol. and Nat. Hist. Survey of Minnesota, Minne: - apolis, 1894. Tue Orrawa NaATurRALIst. 21 I, HL. M—* Notes on a Collection of Silurian Fossils from Cape George, Antigonish Co., Nova Scotia, with descriptions of four new Species,” Ex. Proc. and ‘Trans. Nova Scotian Inst. Science, Halifax, 2nd Ser. Vol. I., pt. 4, pp. 411-415, October, 1894. : Contains descriptions and notes on a collection of fossils made in Nova Scotia, by Messrs. Hugh Fletcher, and J. McDonald in 1886. Jones, Pror. T. Rupert F.R.S., F.G.S.—“ On some fossil Ostracoda from Canada.”—Ex. Geol. Mag. Dec. IV. Vol. II, No. 367, _ pp. 20-28, Pt. II., January, 1895. In this paper are described s7x new species of Ostracoda from col- -lections made in the North West [Territory of Canada and Manitoba. Three of these collections were made by Dr. G. M. Dawson, fromm the ‘St. Mary River beds in 1874 and 1881 :—Another collection was made by Mr. J. B. Tyrrell of the Geol. Surv. Dept. from the friable marl beds of the Rolling River district of Manitoba. The descriptions _ of the species by Prof. Jones comprise : I. PLEIsTOcENE of Rolling River, Manitoba. 1. Candona candida, Miller. 2. ? Ilyobates reptans, Baird. 3. Cytheridea Tyrrellii, n. sp. II. St. Mary-River-Serizs. Milk R., N.W. T. (Loose.) 4. Pontocypris »yriformis, n. sp. 5. Cypris Dawsoni, n. sp. . 6. Ilyocypris oblonga, n. sp. 4 III. St. Mary-River-Serigs. Milk River, N.W.T. 7. Cythere, sp. indet. ; 8. Candona ? Sanctz-Mariae, pn. sp. ; ' g. Cytherella crucifera, n. sp. } IV. St. Mary-River-Series. Old Man R., N.W.T. | 1o. Candona ?, sp. undet. > Nine of these species are figured on PI. II. accompanying the text Prof. Jones adds a note stating that the hingement being very rarely _ indicated, the generic relationships of the foregoing species are for the most part uncertain. ‘This interesting contribution to our knowledge 22 Nores, Reviews anD ComMMENTS. of the more recent fossil Ostracoda of Canada, from the pen of Prof. I. Rupert Jones serves to increase our indebtedness to him for his zeal, patience and assiduity in working out the material which has been sent to him from Canada during the past thirty-six years. Conchology.—Recrnr MoLiuscA FROM THE HEADWATERS OF THE Ottawa. The following recent shells were collected by Mr. A. E. Barlow, of the Geological Survey Department. These have been kindly determined by Mr. Whiteaves of the same department, as follows :-— A.—Foot or LAKE TEMISCAMING. Fresh Water Mollusca . PELECYPODA. . Spherium secure, Prime. ws striatinum, Lamarck. sulcatum, Lamarck. Pisidium abditum, Haldeman. Anodonta, sp. ce me oN GASTEROPODA. Valvata sincera, Say. “ tricarinata, Say, Amnicola porata, Say. g. Fhysa heterostropha, Say. 1o. Planorbis bicarinatus, Say. # deflectus, Say. re. fs trivolvis, Say. 2 es var. macrostomus, Whiteaves. 14. Limneea desidiosa, Say. a humilis, Say. Land Mo/lusca. 16. Patula alternata, Say, sp. B.—EMERALD LAKE. : From Emerald Lake at the head of the South Branch of the Opemican Creek, district of Nipissing, the following fresh-water shells were also obtained by Mr. Barlow, ina thick deposit of shell-mar] :— 1. Spherium sulcatum, Lamarck. 2. Planorbis trivolvis, Say, var. macrostomus, Whiteaves. Ornithology.— Winter Birds.—BoHEMIAN WaxwinG (AMPELIS GARRULUsS.) A flock of 20 or 30 of these rare cold weather visitors has been spending the winter with us. They first appeared on the 8th of January and since then have frequently been seen Tue Orrawa NATURALIST. Fs, in different parts of the city, feeding on the berries of the rowan-trees (Pyrus Americana). Their note is much like that of their summer cousins the cherry-birds, but louder and more ~ incessant. Even during the worst days of the ‘cold wave,” at the “ opening of February, their merry voices told how well earned was their _ old name of Bohemian Chatterer. The epithet Bohemian is probably ~ applied with the meaning of géfsy in reference to their erratic migrations, for they have no special connection with Southern Germany. In winter they may appear at uncertain times. in almost any country of the north temperate zone ; and their summer home is in the - extreme north, being bounded only by the last stretches of timber country. The few records of nests are from Lapland and Alaska. NORTHERN SHRIKE (LANIUS BOREALIS). This bird, always a sparse winter resident in the open country, has been growing noticeably ~ commoner in Ottawa of late years. Ona sunshiny winter morning his song from the top of poplar or maple is really pleasing, as well as a surprise from a bird of such hawklike build and habits. Perhaps he sings the praises of the introducer of the European sparrow, for, in the flocks of these birds, he seems to find a never-failing source of food. A. G KINGSTON, GEOLOGICAL SOCIETY OF AMERICA. The winter meeting of the Geological Society of America was held at Baltimore, Md., Dec. 27th, 28th and 2gth, and was largely attended by the Fellows. There were forty-eight papers on the list and most of these were read by the authors themselves. Prof. T. C. Chamberlin, of the.University of Chicago presided. Dr. Adams, of McGill, and Dr. Ami, of the Geological Survey, were the only two Canadians present. At the opening meeting, Prof. W. B. Clark, of Johns Hopkins University, read a biographical notice of the late Dr. G. H. Williams, of whose life and work a brief sketch has already appeared in THE Naturatist.* Dr. Ami read an appropriate memorial of the late Amos Bowman, F.G.S.A. at one time a member of this club. Among the papers read at this meeting the following were prepared by * Ortrawa NATUwRALIST, vol. VIII, No. 7, p. 113, 1894. 24 EDITORIAL. Canadians:—1. A further contribution to our knowledge of the Laurentian, Dr. F. D. Apams. 2. On the honeycombed limestones in the bottom of Lake Huron, Dr. Ropert BELL. 3. On some dykes containing ‘‘ Huronite,” ALFRED E. Bartow. These three papers were read zz extfenso and were well received. For a complete list-of the papers read at the meeting the reader is referred to No. 1, Vol III, p. 99. of the ‘Journal of Geology,” Chicago, Jan.-Feb., 1895, EDITORIAL. THe Orrawa NAfURALIST is entering upon the ninth year of its existence and as in the past, will be the official organ of the Ottawa Field Naturalists’ Club. The Council of the Club has appointed four of its number a Publishing Committee, and selected seven members of the club who are leaders in the various branches of the Club’s work as AssociatE EDITORS. After careful consideration and discussion, the Publishing Com- mittee of Council has decided to change somewhat the dress and general appearance of THE NaAtuRALIsT. The present number has deen unavoidably delayed. It is the purpose of the new committee and editorial staft to issue THE NaTURALIST promptly on time. A number of advertisements have been secured from business — firms and houses in the city. Tne attention of our members and — others, in whose hands THE NATURALIST may fall is called to them. Members and contributors will confer a favour on the Committee — if they will send their articles on Geology, Botany, Entomology etc., at as early a date as possible. Records of observations, notes and papers on the Geology, Botany, Entomology, Zoology, Couchology and Ornithology of this district or of any part of the Dominion are earnestly solicited. The intention of the Publishing Committee and of the editorial staff is to increase the sphere of usefulness of THE OTTAWA NATURALIST. Not less than 16 pp. will be published every month, and our purpose is to increase the amount.of reading matter in proportion to the amount of MS. and funds at our disposal. With an increased revenue from an increasing membership, and from a larger number of paying advertisements, we hope to accomplish that purpose. We want new subscribers to our magazine and a much larger membership list to the club, ‘The fee is very small, being only one dollar. Blank forms of application may be obtained from the secretary of the club from any member of Council, or from THE EpITor. THE OTTAWA NATURALIST. Vou. IX. OTTAWA, MAY, 1895. No. 2. ON SOME DYKES CONTAINING “* HURONITE.” By ALFRED E. BARLOw, M.A. Geological Survey Department, Ottawa, Canada. ( Read before the Geoloyical Society of America, Baltimore, Dec. 28th, 1894. ) The name Huronite was long ago given by Dr. Thomson of Glasgow, to certain light-yellowish green masses or crystals which occurred porphyritically embedded in a boulder of diabase found on the shores of Drummond Island, Lake Huron, specimens of which had been sent to him by the late Dr. Holmes of Montreal. Thomson regarded it as a new species and published a description and analysis of it in his Mineralogy of 1836. ‘The occurrence of these crystals was first noticed by Dr. Bigsby in 1820, who writes of the rock containing them in a general way as “greenstone porphyries having a light-colored base and containing crystals of red or white felspar—seldom of both in the same block,”/1) This brief and general description would not have been sufficient for purposes of identification except for the fact that his manuscript report which formed the basis of this paper, (2) was lately pre- sented to the hibrary of the Geological Survey of Canada. In the appendix Dr. Bigsby notes “ among the debris of the shore of Lake Huron are por- phyries of greenstone with embedded crystals of red felspar or of four or six sided prisms of cream white colour, foliate fracture, cleavage about 60°, yielding to the knife readily, translucent at the edges and of a feel slightly soapy. Their crystallization is seldom well defined, but some- times remarkably so.” ‘This clear and accurate description serves at (1) Trans. Geol. Soc. London, Vol. 1, p. 205. On the Geography and Geology of Lake Huron, read Feb. 21, March 7 and 21, 1823. (2) Notes on the Topography and Geologieal structure of the north-west portion of Lake Huron, addresseed officially to Dr. J. Wright, Inspector of Hospitals in Canada and dated Quebec, Feb. 23, 1821. *(Commu icated by permission of the Director ) 26 THE OrrawA NATURALIST. once to identify the substance composing these porphyritic crystals with the minerai described later by Dr. Thomson as “ Huronite.” The source of these boulders was not known and the mineral never found “in situ” until 1881, when Dr. Robert Bell, (1) of Ottawa,in his examina- tion of the country to the north-east of Lake Superior, noticed the occurrence “ of a dark grey crystalline diorite (in one place rendered por- phyritic by spots of light-greenish yellow felspar) on the neck of land se- parating Lake Mattawagaming from Lake Wabatongwashene.” This rather brief description was altogether inadequate to connect the mineral with the Huronite which had previously been described by Thomson, and it was not until Dr. Harrington, of Montreal, visited the spot on professional business some year later, that the true identity of these “ spots” was clearly established. In 1891, Dr. Selwyn, of Ottawa, happened to be at the same locality which is situated between Missinaibi and Loch Alch Stations on the main line of the Canadian Pacific Railway, and he states that the dykes containing the Huronite cut both Huronian and Laurentian strata. During the construction of the Canadian Pacific Railway in 1884, Drs. Girdwood and Ruttan made a collection of the principal rocks met with on the main line from Chalk River westward. This collection, they subsequently presented to McGill University. Among the specimens, was one of a dark green diabase with pheno- crysts of a mineral resembling Huronite scattered through it. This specimen had been obtained from a dyke cutting the granitoid gneisses a few miles north-west of Pogamasing Station. The microscopical examination, however, reveals the fact that the original Drummond Island boulder was not derived from either of these localities. Mr. W. G. Miller of the School of Mines, Kingston, who acted as Dr. Bell’s Assistant in 1893, mentions the occurrence of a dyke containing Huronite near the contact between the granite and slates (Huronian) at Depot Lake in the northern part of the Township of Proctor, about fifteen miles north-east of Cook’s Mills. From its geographical position and the direction of the glacial striae this would seem to be the most likely source of the Drummond Island boulder, although this cannot be ascertained with certainty as the specimen from the ‘locality (1) Report, Geological Survey, Canada, 1880-2, part c, p. 4. —— Oe On Some Dykes ConrAInine IlUrRonNrreR. 27 was Jost. Mr. H. G. Skill, of Cobourg, Ontario, who assisted the ~ writer in 1891, discovered another dyke containing this mineral, about one quarter of a mile north of Murphy Lake, in Timber Limits go» Algoma District. During the progress of his explorations in the peninsula of Labrador, Mr. A. P. Low, of the Geological Survey of Canada, noticed the presence of Huronite in a dyke cutting Laurentian gneisses about ten miles north of Lake Kawachagami on the portage route between the Rupert and Eastmain rivers and also in two dykes, each about two hundred yards wide, breaking through rocks of Cambrian age, on the west branch of the Hamilton River, fifteen and twenty miles respectively, below old Fort Nascawpee, on [ake Petitsikapow. Dr. Harrington (private communication) has_ noticed loose pieces of diabase containing Huronite a few miles beyond Amyot Station. He also mentions the occurrence of a diabase dyke four inches in width, containing phenocrysts of the same mineral, a short distance east of the crossing of the Magpie River, near Otter Station, on the Canadian Pacific Railway. Prof. N. H. Winchell, of Minneapolis, Minnesota, in his visit to the Lake Huron district, in 1889, made note of “the’ occurrence at Algoma of occasional very interesting boulders (1605). (1) They contain large and small rounded whitish green felspathic spots which are distributed somewhat like porphyritic crystals but they have not the regular periphery of crystals. They are in a matrix of ordinary diabase of dark green colour and the spots make the rock noticeable, their largest size being somewhat larger than an inch in diameter. Some of the boulders are put in the foundation of the great hotel which the Canadian Pacific Railroad (2) projected at Algoma, and that is where we saw them first. Dr. Selwyn recalled the dyke cutting the Animikie on the high ridge back of Silver Islet, as the only spot where such a rock is in place,” Professor Winchell, who visited this place in 1879, has sent mea small chip from ° a specimen then collected, as well as fragments of the Algoma boulder (1) The number 1,605 refers to the number of the specimen in the rock series of the Geclogical Survey of Minnesota (2) 18th Annual Report, Geological Survey, Minnesota, 1889, pp. 58 and 63. 28 Tue Orrawa NATURALIST. and a small sample from a dyke near Gunflint Lake, north-west of Lake Superior. The phenocrysts of felspar in the Silver Islet specimen, according to Professor Winchell (1) are distinctly angular and not greenish, but greyish in colour. Under the microscope, these felspar phenocrysts are seen to bea plagioclase towards the basic end of the series (very probably labradorite) which has undergone only incipient alteration, whereas, in general the Huronite shows very great decom- position. - The writer has seen numerous boulders of diabase containing this mineral in the region to the north and north-east of Lake Huron, especially on the shores of Lake Huron from Killarney westward to the mouth of the Spanish River, During the summer of 1893, the writer also noticed a boulder of dark green diabase, on the west shore of Bear Island on Lake Temagami, with plagioclase phenocrysts, which bore a very marked resemblance to the more altered Huronite. As the felspar seemed s9 fresh and glassy in places, it was thought an optical examination accompanied by a chemical analysis would throw a great deal of light on the original character and composition of Huronite. Dr. Harrington kindly under- took the analysis of this felspar, which proves it to be labradorite. Under the microscope most of these crystals are quite fresh, although certain portions are more or less clouded by the presence of decomposition products, which it is often difficult to resolve, even with the higher powers of the microscope. Certain of the crystals, however, show the same alteration, only in a lesser degree, as that which charac- terizes the Huronite. It will thus be seen that the mineral is by no means so rare as some have supposed, but has, on the contrary, a wide geographical distribu- tion. ‘Fhe sole reason of its not being discovered, “in situ,” earlier seems to have been due to the necessarily hurried and imperfect explorations first undertaken through these wild and unsettled districts. - In 1885, Dr. B. J. Harrington, of McGill University, Montreal, decided to undertake an examination of the Pogamasing mineral for purposes of comparison with that contained in the original Drummond (1) No, 601, toth Annual Report, Geological Survey, Minnesota, p. 56. ri On Some Dykes Conrainina Huronire. 29 Island boulder, a sample of which was coutained in the Holmes collec- tion in the Peter Redpath Museum. In the course of this investigation he discovered some very grave errors in Thomson’s description. ‘The hardness for example is about 5} instead of 3} as stated by Thomson. Instead of being infusible it is distinctly fusible (F about 5) while it con- tains alkalies the presence of which is entirely ignored by Thomson.”(1) Dana, in an old edition (2) of his mineralogy mentions Huronite ~ under Prehnite, evidently deeming it an allied mineral. In 1889, (3) ¥ 4 4 the same author mentions Huronite along with Weissite and Ikerite as a supposed altered form of Iolite (Cordierite). In the same edition (4) he also says ‘‘Thomson’s Huronite is an impure anorthite-like telspar related to bytownite, according to T. S. Hunt (priv. contrib.), ex- cluding the 416 per cent of water the SiOz would be 47 per cent. of the remainder.” Again, in the same edition, Dana states (5) “ Huronite, Thomson (Min., I., 384, 1836) considered an altered mineral near fahlunite by T. S. Hunt, occurs in spherical masses in hornblendic boulders in the vicinity of Lake Huron.” In the last edifion of Dana’s Mineralogy (6) the author, Mr. E. S. Dana, places the mineral under anorthite on the authority of Dr. Harrington’s paper in the Transactions of the Royal Society of Canada, but Dana is wrong in referring the analysis made by Mr. N. N. Evans, to the Huronite of the Drummond Island boulder, for in reality it belongs to the Huronite found by Dr. Girdwood near Pogamasing. Michel-Lévy and Lacroix (7) include Huronite among the decomposition products of Iolite or Cor- dierite. The failure to assign to Huronite its rightful mineralogical posi- tion arose from the fact that it was impossible to ascertain its true nature by chemical analysis. It remained for the microscope to dis- close its composite nature and to show its relation to the more widely known ‘“ Saussurite.” [1) See Trans-Royal Soc. Canada, Section III, 1886, p. 82. (2) System of Mineralogy, 3rd edition, 1850, p. 313. (3) See System of Mineralogy, 1889, p. 301. (4) See Idem. page 34.) (5) See Idem. page 485. (6) System of Mineralogy, 1892, p. 340. (7) Les Minéraux des Roches, 1888, p. 174. 30 THE Orrawa NATURALIST. Seale cf ISnehes. CRYSTALS OF HURONITE IN DIABASE. (Cat. No. 995, Geological Survey of Canada Museum) From 4 mile N. of Murphy Lake, Algoma, Ont. The name “ Huronite ” has usually been restricted to yellowish green more or less rounded masses or phenocrysts, which rarely exceed two inches in diameter, embedded in a medium textured dark greenish or greyish groundmass. Many of the smaller and not a few of he larger individuals have an irregular or jagged outline owing to mag- matic corrosionand frequently exhibit small armsor bays which have been filled by the invading magma. Occasionally some are seen with a more or less perfect crystallographic outline and many exhibit one or more sharp crystal faces. The mineral is light yellowish-green in colour although portions of the crystals which have undergone less alteration show a very pale flesh red or pink colour as in the case of the Murphy Lake and Eastmain specimens. The crystals weather to an opaque greyish-white forming very conspicuous spots in an other- wise dark coloured rock. Under the microscope the greenish colour is seen to be due to the more or less abundant development of a eee es. On Some Dykes ConTaInInc Hwuronirte. 31 zoisite, epidote, sericite and chlorite at the expense of the original felspar. Some of the phenocrysts show a more or less perfect cleavage which is noticeably the case in the Eastmain specimen, although in the more hightly altered samples, as those from the vicinity of Missinaibi, little or none can be seen. Occasionally, crystals show macroscopically the lamellation due to polysynthetic twinning, as in some of those in the Murphy Lake diabase, but as a general rule these lamelle are either absent altogether or so faint that they cannot be detected. The mineral is subtranslucent, varies in lustre from pearly to waxy accord- ing to degree of alteration. The hardness varies from 5% to 6, fusibility about 5, and the specific gravity, according to Mr. R. A. A. Johnston, of the Geological Survey of Canada, varies from 2°725 in the East- main specimen to 2935 in those from Missinaibi. The specific - gravity, as would be expected, shows an increase in proportion to the the alteration. The microscopic examination in general reveals the fact that in every case the so-called ‘“‘ Huronite” is really a plagioclase near the basic end of the series which has undergone more or less complete “saussuritization.” In most instances the development of zoisite, epidote, sericite, chlorite, etc., at the expense of the original felspar has been so abundant as to leave only traces of the original twinning lammellze and occasionally to destroy all evidence of this structure. Specimens may be obtained from the large number of slides examined, showing a complete gradation of this decomposition from the pure glassy plagioclase (labradorite) composing many of the phenocrysts con- tained inthe diabase from Temagami Lake to the completed Saussurite or Huronite in the porphyritic individuals of the Missinaibi rock. The matrix in which those phenocrysts are embedded is in general a typical diabase of dark greenish or greyish colour which likewise shows a wide difference in degree of alteration under the microscope. The speci- mens from Bear Island, Lake Temagami, show a very typical and fresh olivine-diabase. With the exception of some of the crystals of olivine, the rock is remarkably free from decomposition, while in the finer grained portion of the rock from Missinaibi all the component minerals have undergone great alteration. The plagioclase is more or less completely ‘“saussuritized,” the augite originally present wholly con- verted to hornblende (uralite) and the ilmenite replaced by the dull 32 Tue Orrawa NATURALIST. gray almost opaque variety of sphene known as leucoxene. A strange fact noticed, moreover, is that frequently the less altered phenocrysts of Huronite occur in an exceedingly decomposed diabase as is the case in the Pogamasing and Eastmain specimens, while the more highly altered porphyritic individuals of this mineral are frequently developed in a groundmass more or less remarkable for its freshness. This is noticeably the case in the original specimen from the Drummond Island boulder. The first stage in the decomposition or “ saussuritization” of the plagioclase shows a cloudiness due to the development of a dull, fine grained, more or less opaque material, with a higher index of refraction causing the granules to stand out in relief from the surrounding felspar. In many cases, even in the thinnest sections, this is beyond the highest power of the microscope to resolve into its component min- eral or minerals. This is accompanied, or immediately followed, by the development of sericite (hydrated muscovite) in small scales showing characteristic brilliant interference colours. The cleavage planes and fissures are seen to contain large scales and plates of this mineral, while certain other cracks and fissures are filled with chlorite and serpentine resulting from the decomposition of the bisilicates present. The smaller granules now coalesce and form larger masses and individuals of zoisite and epidote, while larger plates and scales of sericite are developed and the original plagioclase is finally replaced by a comparatively coarse grained aggregate consisting of zoisite, epidote, sericite, chlorite, calcite, and felspar. Where the alteration has been extreme, as in the case of the plagioclase originally present in the matrix of the Pogamasing specimen, the lime is more or less completely removed, and the alkaline portion of the plagioclase has crystallized into pure limpid grains of albite which seldom show twinning striations and are accordingly fre- quently mistaken for quartz with which they are often associated. The larger phenocrysts very frequently showed a marked difference both in the degree and character of the alteration of their central and peripheral portions. ‘The zoisite and epidote were much more abund- ant in the zone or belt immediately surrounding the crystals, while muscovite is the prevailing decomposition product present in the cen- = a, » Dp > i’ ys) TEMS: ok 7 2 On Some Dykes CoNTAINING HURONITE. 33 - <« tral portion. In the plagioclase of the matrix the decomposition pro- } ducts are frequently grouped together in the central portion, leaving a comparatively clear and tresh periphery. Certain of the crystals of felspar are quite fresh and glassy, having for some reason escaped the alteration to which most have been subjected. With the single exception, perhaps, of the plagioclase originally contained in the fine-grained portion of the rock from Pogamasing the _decomposition has not been of such extreme character that secondary albite has resulted and in every other instance the clear felspar sub- stance is certainly an unaltered survival of the original individual. The plagioclase of the groundmass is usually in more or less elongated forms, but occasionally mutual interference has produced at times rounded contours. In composition—to judge from the measurements of the -angle contained between the maximum extinction of adjacent lamellae —the plagioclase appears to be always near the basic end of the felspar series. Some of the angles obtained are high enough for anorthite, the most basic of the felspars, but generally the angles obtained indicated labradorite as the most frequent source of the Huronite. PETROGRAPHICAL DESCRIPTIONS. 1. Locality —At Hudson’s Bay Co.’s Post, Bear Island, Lake Temagami, District of Nipissing, Ontario. (From a boulder.) | } | In the hand specimen the rock is a dark green, medium textured diabase in which numerous large phenocrysts of plagioclase are deve- loped. Most of these porphyritic crystals are more or less rounded owing to magmatic corrosion, although occasional individuals exhibit tolerably sharp and perfect crystallographic boundaries. Some of the crystals measure as much as three inches in diameter, but as a rule they vary from one to two inches across. They have in general a greenish tinge, although portions cf some of the crystals show a flesh red colour. Most of this plagioclase is remarkably fresh and glassy, but the cleavage planes are very frequently coated with such alteration products as ser- pentine and chlorite derived from the decomposing bisilicates present in the matrix. The phenocrysts are often seen containing or invaded by portions of the finer-grained groundmass. This matrix weathers brownish or yellowish owing to the oxidation of the iron present, while 34 THE Orrawa NATURALIST. the phenocrysts of plagioclase become a dull greyish white, thus ren- dering the rock very conspicuous. In general the rock bears a very close megascopical resemblance to the diabase originally described as con- taining the Huronite while the phenocrysts themselves differ only in the degree of alteration they have undergone. The writer regards this diabase as the least altered representative of the series of rocks studied but which, under similar conditions, would have furnished a rock dif fering but slightly, if at all, from any of the more decomposed speci- mens first noticed and described as containing ‘‘ Huronite.” An analysis of a portion of one of the least altered of these pheno- crysts of plagioclase, kindly undertaken by Dr. Harrington of McGill University, proves the species to be labradcrite. The followiug are the results : Silica: 52... she ote tga eerie ee ee ee eee 54°19 Alumina’, . 3 sos seks pec See ee eee 28°42 Berrie: Oxide: . Ste. ois ce fe eae ee eee 0°77 Ferrous: Oxide Fa Psu on.espalc erections etree o'al Manganous Oxid@eianccs: seo mane nee Trace TAME nce okie Sse S OR oe a ee eee 10°47 Maoneésia:.. ©. 2 oi7towes ec aetna ee ee O52 Soda 22.5. sicic actuate ei ines Oke Oa oe eee 4°47 Potash): 2.2) ci oe beens see hoe ee eee OEE 0°63 oss onmenition’, «-t.405 co cme sete or ar Sars “59 -100° 47 The specific gravity of carefully selected fragments with the bottle was 2 679. Under the microscope the rock is seen to be a very typical and rather fresh olivine-diabase. In many instances the large phenocrysts are quite tresh and give the extinction angles characteristic of labra- dorite. Very often, however, irregular areas and patches have under- gone considerable “ sericitization,” the resulting scales of hydrated mus- covite being very minute. Occasionally this alteration is carried farther and both zoisite and epidote are present in addition to the sericite as a result of secondary action. At times a narrow border surrounding those crystals exhibits a micro-perthitic structure. A careful examination ad- duced sufficient evidence to indicate clearly that a more extended alter- - ———— — Peel S s er. foe até all ae ww! On Some Dykes Conraininc Huronire. 35 tion of these phenocrysts of labradorite would produce the so called Huronite. The fine-grained portion of the rock in which these crystals have been developed is a fresh aggregate composed chiefly of plagio- clase (labradorite), augite and olivine. The ophitic or diabasic struc- ture is very pronounced. ‘The plagioclase is usually idiomorphic form- ing an interlacing network of lath-shaped crystals, the interstices ot which are filled with augite and olivine. The augite possesses the red- dish colour and pleochroism so common in diabase, the larger grains showing frequent distortion and occasional dislocation. Both the fel- spar and augite exhibit undulatory extinction as an effect of pressure. The olivine, as usual, occurs in irregular, more or less rounded irdi- viduals, only very rarely presenting sharp crystallographic outline. Com- monly, it is rather fresh, showing a colourless or light greenish sec- ‘tion with characteristic high relief, rough surface and brilliant interfer- ence colours. It is rarely so fresh, however, as to be without traversing fissures filled with more or less opaque alteration products. In many instances the original olivine grain is represented by a greenish or yel- lowish material, probably serpentine. Small scales or grains of opaque iron ore (magnetite) are associated with this serpentine indicating that they were aiso a result of the decomposition of the olivine. Less fre- quently, perhaps, the olivine shows a very interesting and rather un- usual alteration to talc, but the resulting scales of this mineral were so small that this could not be ascertained beyond dispute. The talc is of a very pale green colour, slightly pleochroic, and exhibits very brilliant interference colours between crossed nicois. It occurs as a matted or felted aggregate of very minute scales filling the original olivine grain. The talc is usually accompanied by more or less opaque iron ore and occasionally some chlorite. (1) A considerable quantity of biotite is present which in some cases has undergone considerable bleaching” owing to the removal of iron, while in other cases it is altered to chlorite. Apatite is also a tolerably abun- dant accessory constituent. The magnetite occurs usually in irregu- lar black grains, most of which have resulted from the decomposi- (1) Vol. III. Geol., Wisconsin, p. 235. 36 THe Orrawa NATURALIST. tion of the olivine. Frequently, however, it occurs in tabular or rod- like forms, which are sometimes arranged in one set of parallel planes only, while in other cases they lie in two sets of planes intersecting one another. These rod-like forms penetrate all the constituents of the rock. In many instances the smaller rod-like forms occur in associa- tion with the biotite, and their correspondence in position with the planes of cleavage of this mineral suggests that in these cases. at least, their formation has been due to secondary action (“ Schillerization ”), in- volving the elimination of the iron and the development of magnetite along the planes of easy cleavage. 2. Locality —S.E. 4, N.W. 4, Section 19, 65, 3, cutting on the Port Arthur, Duluth and Western R.R., just west of the narrows of Gunflint Lake, Minnesota. (1) Mr. U.S. Grant, who kindly sent me the speciment at Prof. Win- chell’s request, says: ‘‘ The rock is from one of the diabase sills (2) in the lower oriron-bearing memberofthe Animikie. The markedly porphyritic character is only local, the main part of the siil being without phenocrysts. These porphyritic patches are sometimes rather sharply marked off from the main mass of the sill, but they usually pass into the non- porphyritic parts simply by a gradual loss of the large crystals. This sporadic development of large felspar phenocrysts in certain of these Animikie sills is a rather common feature.” Macroscopically the rock resembles very closely the boulder brought from Lake Temagami, being a dark green diabase with pheno- crysts of fresh plagioc'ase which exhibit the polysynthetic twin lamel- lation very beautifully. The microscope reveals a rock composed mainly of plagioclase and augite with pronounced ophitic structure. The augite when fresh is of the reddish and slightly pleochroic variety so common in diabase, but it shows abundant alteration to greenish or brownish green hornblende (uralite). ‘The opaque iron ore has the same rod-like development noticed in the examination of the preceding rock. Biotite is present (1) Specimen No. 951, Geographical and Natural History Survey of Minnesota, collector U.S, Grant, see 22nd Annual Report, p. 82. (2) Logan hills of Lawson, see Bulletin 8, Minnesota Survey. a . " 4 : ’ ‘ \ { ] P { 4 ‘ On Some Dykes ConraininG Huroyire. 37 and shows considerable “bleaching” and chloritization. The larger phenocrysts, which are probably labradorite, are mostly quite fresh and glassy, but irregular areas are more or less clouded by the development of.minute scales of sericite or kaolin. The rock differs from the _ Temagami specimen in the absence of olivine and the advanced uralitization of the augite 3. Locality,—Landing at Silver Islet, north shore of Lake Superior. Prof. Winchell thus describes this rock (601) : (1) “A coarse porpby- _ ritic ‘dioryte’ in a dyke running parallel to and contiguous, to and’ passing into (602) a fine grained ‘dioryte’ in the form of a dyke. The interval of transition is perhaps two feet wide, and the crystals of felspar are scatteringly disseminated through it on the south side, and wholly disappear on the north side. They run in the same direction as the dyke on Silver Islet. The whole is 45 feet wide, but is evenly divided between Nos. 601 and 602 from about a mile north of the ‘ Landing at Silver Islet.’ ” se eee The thin section under the microscope showed an aggregate of plagioclase (labradorite), augite, serpentine and opaque iron ore. The phenocrysts of plagioclase as well as the lath-shaped crystals pre- sent in the groundmass show more or less ‘cloudiness’ due to the development of minute scales of muscovite. Irregular fissures travers- ing the felspar are filled with yellowish green serpentine derived from that present in the surrounding matrix. The augite, which is quite - fresh, has a reddish colour, and is slightly pleochroic. It occurs in irregular grains and areas filling in the spaces between the plagioclase laths. The yellowish green serpentine, which is abundant, is present in areas whose external form and internal arrangement at once suggest its alteration from olivine, which was no doubt originallv present. These phenocrysts of labradorite are much fresher than those to which the name “ Huronite” has usually been applied, but under similar - conditions of alteration there is no doubt that they would become so decomposed as to be indistinguishable from this mineral. _., {1) Specimens Nos. 60r and 602, toth Aunual Report of Geolcgical and Natura History Survey, Minnesota, page 56. 38 Tue OrrawaA NATURALIST. 4. Locatity.—Knob or Fault Hill, west branch Hamilton River, 20 miles below old Fort Nascawpee on Lake Petitsikpow, (1) Labrador Peninsula. The specimen, according to Mr. A. P. Low, is from a dyke cutting the ferruginous limestones and shales of Knob or Fault Hill, a promi- nent topographical feature, as it rises rather abrupily to the height of 350 feet above the surrounding country. The dyke occupies the sum- mit of the hill, while 200 feet below come in the stratified rocks through which it has been intruded. Neither the width of the dyke nor the nature of its contact with the bedded rocks could be ascertained owing to the accumulation of drift material, but it certainly cannot be much less than 200 yards. : Macroscopically the hand specimen shows a medium textured dark green almost black diabase containing occasional small and imperfect phenocrysts of a light greenish grey plagioclase which has undergone incipient ‘‘saussuritization.” Under the microscope the rock is seen to - be composed of an aggregate of plagioclase, augite, serpentine, and ilmenite. The augite is very fresh, has a light brownish red colour and shows a marked pleochroism. In general its fo1m is allotriomorphic, filling in the spaces between the felspar, but occasional individuals exhibit sharp and perfect crystal boundaries. The plagioclase occurs in more or less elongated lath-shaped crystals which are often somewhat stout and rounded thus producing a rather coarse ophitic structure. Many of the small individuals are quite fresh, but — the larger ones show considerable alteration to sericite and epidote. The resulting “‘saussurite” is innoinstance so abundantly developed as to destroy the polysynthetic twinning striez. The large amount of serpentine noticed in this rock has evidently resulted from the decom- position of olivine originally present. The serpentinization of the olivine is in every instance completed, and only the outline and structure of the serpentine individuals serve to indicate the mineral from which it has been derived. These occasionally show a network of fibrous ser- pentine which was first produced, the greenish fibres standing perpen- dicular to the cracks along which they have been developed. Owing (1) Reference No. 4, A, p. 28, Book II., Low, 21/6/94. On Some Dykes Contraininc Huronire. 39 to this parallel arrangement of the fibres, the serpentinous substance gives a faint but definite reaction with polarized light: The meshes of the net-like structure thus produced are filled with more finely devel- oped scales and fibres of serpentine which are nearly, if not, quite isotropic. These decomposed grains are often seen embedded in the fresh augite. The ilmenite occurs in large irregular fragments or in small more or less rounded granules and in both cases shows character- istic alteration to leucoxene. The leucoxene is of the usual opaque grey colour, but sometimes brownish grey, and frequently show, especially in the thinner portions of the slide as also the smaller frag- - ments, the brilliant chromatic polarization of sphene of which it is simply a variety. 5. Locality.—¥% mile north of Murphy Lake, Timber Limit, go, _District of Algoma, Ont. The specimen is from a dyke cutting rocks of Huronian age. The matrix is a normal dark green diabase whose ophitic structure is mega- scopically apparent. A freshly exposed surface shows the Huronite to be of the usual pale yellowish green colour, while the less altered por- tions of the crystals have a more or less pinkish or flesh red colour. In many of these individuals a somewhat indistinct cleavage and a rather faint striation due to multiple twinning may be seen. The Matrix weathers a brownish colour while the phenocrysts become a dull opaque greyish white thus rendering portions of this rock which have been subjected to atmospheric action very conspicuous. Microscopically, the Huronite is seen to be labradorite which has _ undergone more or less “‘saussuritization.” A narrow border usually ‘surrounds these phenocrysts of labradorite which is free from the pro- ducts of decomposition, but immediately within this rim is a zone or band where the alteration has been extreme and here the resulting zoisite, epidote and sericite replace nearly, if not quite, all of the origi- ‘nal felspar: The epidote and zoisite are present in irregular grains or masses, while the sericite, as usual, occurs in scales and plates. All of these alteration products have a more or less definite arrangement. The grains and imperfect crystals of epidote and zoisite are usually elongated ‘in a direction corresponding more or less with the twinning -striations 40 THE Orrawa NATURALIST. or in a direction nearly at right angles while the scales and plates ot sericite have a similar development. . The specific gravity, ascertained by Mr. R. A. A, Johnston, of these porphyritic crystals was 2°758. The matrix of these crystals is a rather fresh diabase with pro- nounced ophitic structure and composed chiefly of plagioclase and augite. The plagioclase is idiomorphic and forms an interlacing net- work of lath-shaped crystals. Occasional crystals are rather fresh and glassy, but usually they exhibit the same alteration as the larger por- phyritic individuals, and apparently belong to the same species of felspar (labradorite). The decomposition products aggregate themselves to- ward the centre of the crystal leaving a somewhat fresh periphery. The augite is in general quite fresh, but occasionally an individual was seen partially altered into green, strongly trichroic hornblende. Twins are common. A considerable quantity of biotite is present which is al- ways more or less altered to chlorite. Ilmenite, an abundant consti- tuent, occurs in irregular grains and only shows incipient alteration to leucoxene. Occasional prisms of apatite were noticed, chiefly developed in the chloritized biotite. The more unaltered portions of the plagio- clase show the undulatory extinction due to pressure. Pyrite is also an abundant constituent. 6. Locality.—A\goma Mills, north shore of Lake Huron, district of Algoma, Ontario. (1) The thin section exhibits a rock very similar to the one just des- cribed and must be regarded as being derived from a dyke almost anal- agous in character and composition to that exposed near Murphy Lake. The phenocrysts of labradorite show the usual alteration into an aggregate composed chiefly of muscovite, epidote and zoisite although considerable portions of some of the crystals are free from these de- composition products. The augite has a light yellowish colour and is only slightly pleochroic. ‘Twins are common, the twinning plane and composition face being the orthopinacoid. Curved or distorted individuals were often noticed exhibiting the *From a boulder No. 1605, Geological Survey of Minnesota, series of rocks, 18th Annual report, page. 58. ——- = ’ \ On Some Dykes Coytatninc Hurovyire. 4] { “strain shadows” due to pressure. A good proportion showed an in- cipient uralitization. The plagioclase of the groundmass has also undergone more or less ‘“saussuritization” and occurs in stout and rounded laths thus producing a rather coarse ophitic structure. ‘The ilmenite present in irregular grains is often fresh but shows occasional incipient alteration to leucoxene. A small amount of chlorite is also present. 7. Locality —Shore of Drummond Island, Lake Huron, (from a boulder.) The slide was made from a fragment, obtained through the kind- ness of Dr. Harrington, from a duplicate specimen of the original boulder at present in the Holmes collection of the Peter Redpath Mu- seum of McGill University. The first examination and analysis by Dr. ‘Thomson was rather imperfect as pointed out by Ur. Harrington (1) but it has been thought advisable to reproduce the analysis, though im- _perfect, for purposes of rough comparison. This analysis is as follows : : RSI AMEE, Fes oat fe. 8 yalga'eeys Sens 2 ae 3 «+45 45200 oo LURTE 2 2 aS See «mene one 33°92 ESR {GSS COPS Et Ae eee See te Irae nee 4°32 line. .1, heed Sa ee Sie ee ee 8°04 WE EERSTE ae aa a, Reale ay fe Tee SGI nr as ee ecto 4.16 97°96 The specific gravity, according to Dr. Thomson, is 2°8625. Under the microscope the phenocrysts of the so-called “ Huronite” are seen to be a decomposed aggregate of zoisite, muscovite, epidote, calcite, chlo- rite and felspar. Occasionally there is a very narrow border of compa ratively unaltered felspar surrounding these individuals, in which traces of the very fine striation, due to multiple twinning, may be observed. Im- mediately within this band, however, the decomposition products are most abundant, and the original plagioclase is replaced almost altogether by epidote, zoisite and muscovite, their relative abundance. being in the order mentioned, while the interior of the crystals is composed mainly of muscovite with a much less proportion of zoisite, epidote and felspar. a (i) ‘Trans. Royal Society of ‘Canada, Section III., 1886, p. 82. 42 THE Orrawa NATURALIST. The epidote and zoisite occur in irregular, often somewhat elongated masses or “grape-like” bunches which frequently show a more or less definite arrangemenr in accordance with the structure of the original felspar. Both minerals exhibit their characteristic high relief, the epi- dote showing brilliant chromatic polarization colours, and yellow to colourless pleochroism, while the interference colours of the zoisite, as usual, are very low, dull bluish to yellowish. The sericite is of a very pale green, and occurs in scales or aggregates of scales and plates, show- ing customary brilliant polarization colours and parallel extinction. The sericite has, likewise, often a definite arrangement, but sometimes occurs in irregular or matted aggregates. The ‘ saussuritization ” of the origi- nal plagioclase has been usually so complete, that only traces of the twinning lamelle can be detected. The matrix in which these crystals are embedded is a diabase, composed essentially of plagioclase and augite. The plagioclase shows mote or less alteration, identical in cha- racter with that of the larger phenocrysts so that it must have had a similar composition. It occurs as lath-shaped, twin crystals, often con- sisting of only two lamella, which pierce, and are often embedded in the augite. The augite occurs in more or less irregular masses, filling in the interstices between the felspar laths. It is light-brownish in colour: exhibits a faint pleochroism, and the characteristic interrupted cleavages in cross-section. It is partially altered into green trichroic hornblende, and occasionally the alteration has been carried so far that chlorite has resulted. This uralitization has only proceeded to a limited extent, and is confdned to a narrow margin surrounding the irregular fissures traversing the augite masses. Occasional twins were noticed, the twinning plane being the orthopinacoid. Ilmenite is abundant, but almost wholly converted into leucoxene- The fragments have generally jagged and irregular contours, but occa- sionally, some are seen which possess a rather perfect crystallographic outline. The characteristic alteration along lines parallel to the faces of the rhombohedron produces alternating bands of greyish white leu- coxene, and black, unaltered ilmenite. The less altered portions of the plagioclase and the augite show uneven or wavy extinction, the “strain shadows ” induced in the latter being especially well marked, —E——————————— EE es ee ee, On Some Dykes Conrarnsinc HuRonITE. 43 and is a noticeable and interesting feature in connection with the rock. Additional evidence of pressure is furnished by the frequent distortion and even dislocation of both the plagioclase and augite individuals. 8. Locality.—About 4 miles N.W. Pogamasing Station, main line, Canadian Pacific Railway, District of Algoma, Ont. The specimen was obtained from a dyke, cutting the granitoid _ gneisses of the Laurentian. The phenocrysts of ‘“‘ Huronite” have generally a rude, rounded outline, the largest of which are about two inches in diameter. Many of the smaller ones have irregular or jagged outline, and occasional individuals exhibit some of the sharp faces of the original crystal. The mineral is of the usual light, yellowish-green colour, shows the glistening surfaces of the indistinct cleavage and occa- sional faint-strie. It is sub-translucent, has a waxy lustre, and a some- _ what “soapy ” feel. According to Dr. Harrington* “ the hardness is 54 } *Trans. Royal Soc. Canada, Sec. III, 1886, p. 82. or a little over, fusibility about 5, and specific gravity 2°814.” An analysis of some of the material composing these phenocrysts was made by Mr. N. N. Evans, of McGill University, for Dr. Harrington, with the follow- ing results : SiG? aan tO oA cee emer gi” woot AR OF PORPRERLET SPREE PETES DEST Seis wc wre S's 0 wis's's epee reals 32°49 ae CONC Cs a oe ares eee 0597 WARE a OS rt ems 13°30 OL AESIESTE ae > Sey iD 6. 8e ERR "CPCI REO 0°22 RAS res crag 5. > - 2°88 S602 4p kanes aS See ee A: 2°03 MSS OME ISHIION 3c. 0. 06s one oe 27D 10168 The matrix in which these crystals are developed is a fine-grained dark green diabase, with abundantly disseminated particles of iron pyrites. ‘Uuder the microscope the “ Huronite” is seen to consist of an aggregate of epidote, zoisite, sericite and chlorite, but in the larger crystals especially, considerable areas of -unaltered plagioclase exist which are quite fresh and glassy, and exhibit the twinning lamellae quite distinctly. The smaller pkenccrysts, however, are altogether 44 THe OrrawA NATURALIST. decomposed so that there is little or no evidence of the lamellation of the original felspar. The matrix in which these crystals are embedded is an exceedingly decomposed grouidmass made up of felspar, epidote, chlorite, hornblende and zoisite, with larger individuals of augite in a more or less advanced stage of uralitization. The alteration to horn- blende is mainly marginal and has proceeded very unevenly, the core of unaltered augite, having thus a very irregular outline. The augite has a brownish colour and exhibits the characteristic interrupted cleavages in cross-section. The larger individuals are all twinned, the twinning plane being the orthopinacoid. The rock isso decomposed that the original ophitic structure is nearly, if not quite, obliterated. Very little trace, if any, remains of the original plagioclase of the ground mass, and instead small areas or fragments of a water-clear unstriated felspar (albite ?) are present which are evidently secondary, as they contain minute embedded needless of the secondary epidote. This water clear secondary felspar has evidently been developed at the expense of the original plagioclase. (1) A considerable amount of ilmenite was originally present, but is now almost altogether decomposed to leucoxene. This greyish white translucent mineral occurs in masses which are generally irregular or have a rude rhombic outline, and frequently exhibits the very charac- teristic alteration along lines or zones parallel to the faces of the rhombohedron. The thinnest section shows the mineral to be made up of an aggrega‘e of minute rounded grains with a high index of refraction and showing brilliant interference colours. (2) 9. Lozality.—10 miles north of Lake Kawachagami, on the portage route between the Rupert and Eastmain rivers, in the peninsula of Labrador, Geo. Survey of Canada, Eastmain River. (3) Macroscopically a dark greenish grey gabbro with yellowish green phenocrysts of plagioclase. The phenocrysts have a tolerably sharp, through irregular outline, the larger ones being over.an inch in diameter. Under the microscope the rock is seen to be composed mainly of plagioclase, augite and ilmenite. In places a coarse ophitic structure can (1) Teall, British Petrography, p. 230. (2) Notes on the microscopic structure of some rocks of the Quebec Group— Frank D. Adams—Geo. Survey, Canada, Report Progress, 1880-82, p. 16, A... (3) Reference No. 1, p. 12, Book II, 12/7/92, Low. as 4° eee See ie be et on el | —— ——_—... - = ee re a ee On Some Dykes ConraAininc Huronire. 45 be seen and the specimen doubtless represents the “ granitoid ” structure so characteristic of the centre portion of most diabase dykes which nearer their margin exhibit the typical ophitic structure. The larger phenocrysts show a marked alteration. Most of the sections of these crystals are made up ot innumerable minute scales and fibres of light greenish seri- cite arranged parallel to the polysynthetic twinning lines, and therefore even where the alteration has proceeded farthest the direction of the very fine striation may still be ascertained. Zoisite and epidote have also been developed the former usually in more or less elongated prisms or lath-shaped crystals, occurring either isolated or in irregularly disposed groups. ‘The epidote is present in irregular grains or associ- ated with calcite filling certain fissures in the crystals. Some portions of the crystals which had escaped alteration hada distinctly reddish colour and revealed the fine twinning strie. The crystals are precisely similar to those decribed by Thompson as “ Huronite.” The specific gravity of these crystals, according to Mr. R.A. A. Johnston, is 2°725 The augite has undergone more or less complete uralitization, although in most cases cores of unaltered material remain. During this process a certain amount of epidote present in the slide has been formed. The plagioclase of the matrix shows the same alteration or “ saussuritization ’ as the larger phenocrysts, the decomposition products aggregating them- selves towards the centre leaving a comparatively fresh periphery. Ilmenite is a rather abundant constituent and occasionally shows incipient alteration to leucoxene. Apatite is very abundant. The interlamination of quartz and felspar, known as granophyre, is present in considerable quantity. 10. Locality near Missinaibi Station, on the main line of the Canadian Pacific Railway, District of Algoma, Ont. The specimen examined was obtained by Dr. Selwyn from one of several dykes which cut both the Huronian and Laurentian rock exposed in this region. It is a medium grained dark greyish green diabase whose ophitic structure is megascopically apparent. ‘The por- phyritic crystals vary from a pale greyish green to a light yellow green, weathering to a light grey on exposed surfaces. Very frequently they have tolerably good crystallographic boundaries, although in most cases 46 THE OrrawA NATURALIST. , especially in the smaller individuals they have a rather irregular out- line. The specific gravity of these crystals ascertaimed by Mr. R. A. A. Johnston was 2°935. Under the microscope these phenocrysts show a very advanced stage of alteration and the original plagioclase is now replaced by an aggre- gate of muscovite, zoisite, epidote, felspar and calcite. ‘There is little or no trace left of the original twinning lamellae. The plagioclase laths present in the enclosing matrix show a similar alteration, although not to so large an extent. The augite originally present is now replaced by hornblende (uralite) and often the alteration has proceeded so far that chlorite has resulted. These resulting products of decomposition fill the original allotriomorphic individuals of augite. These individuals as now present usually exhibit a deep green border of strongly trichroic hornblende, while the interior is occupied by an aggregate of interlacing fibres of light green hornblende with more or less chlorite. Traces sf the characteristic interrupted’ cleavages of augite are present in occa- sional grains, but no unaltered cores now remain. The resemblence to other uralitic hornblende is, however, unmistakable. (1) The hornblende also bears a close resemblence to that present in the rock just described (No. 9) in which cores of the original augite are still present. The ilmenite present is more or less altered to leucoxene showing brilliant polarization colours (compare No. 8 ante). A considerable amount of biotite of a light brown colour on account of the “ bleaching” it has undergone shows rather brilliant interference colours. ~ The biotite has also been altered in many cases to chlorite. Granophyre structure was also noticed. | rr. Locaitty.— Lake Petitsikapow, about 15 miles below old Fort Nascawpee. West branch Hamilton River. Labrador Peninsula. (2) The dyke from which the sample was taken, according to Mr. Low, is 200 yards in width, coarsely crystalline in the centre where the porpbyritic individuals of Huronite are often three-fourths of an inch in diameter. The dyke breaks through and alters sandstones, limestones (1) Williams’ Appendix I., Part F., Annual Report, Geological Survey of Canada, Vol. V., 1889-90, p. 60, (2) Reference No. 4, p. 3¢, Bk. II. Low, 23/6/94. es Sh Sl Se eo a, On Some Dykes ConraAininc Hvronire. 47 and shales of Cambrian age, running almost parallel to their strike. The specimen was taken from near the middle of this dyke, and shows macroscopically a dark greenish grey, rather coarse grained diabase, in which are embedded numerous phenocrysts of altered greenish felspar (Huronite). The crystals of ‘“‘ Huronite,” though much smaller than usual, are on the other hand much more abundant, so that it is often difficult to obtain even a small chip of the finer groundmass, in which they are embedded. The felspar of both the larger porphyritic indi- _ viduals and those present in the groundmass show great alteration, although the polysynthetic twinning lamellz may still be recognized. The decomposition products are mainly sericite and epidote. The specific gravity of these phenocrysts according to Mr. Johnston, 13 2.773. The augite when fresh (which is rarely the case except in very minute fragments), is of a reddish colour, and shows distinct pleochroison. A great deal of chlorite is present. The ilmenite occurs in irregular grains as well as fragments, which have a more or less perfect crystallographic outline and occasional perfect rhombohedra were noticed. he alteration to leucoxene is very characteristic, this resulting form of sphene frequently exhibiting its characteristic brilliant chromatic polarization in thin sections. (1) Besides these larger frag- ments small rounded grains of a brownish grey translucent mineral occur witb high index of refraction, and show brilliant interference colours. These occasionally show small granules in the centre of un- altered titanic iron ore, and thus reveal their derivation. Apatite is very abundant, and occurs in colourless prismatic needles which are frequently bent, cracked and broken. Pyrite is also a rather abundant accessory constituent. ee ae (1) Page 16 A, Report Geological Survey of Canada, 1880-2. 48 THE OrrawA NATURALIST. HUNTING THE BARREN GROUND CARIBOU. By FRANK RussELL, of the State University of Iowa. Vague rumors had reached Fort Rae concerning the whereabouts of the “deer” during the last week of October, but it was not until the first of November that a party left the post to hunt them. A few years ago the Barren Ground Caribou appeared about the fort regularly upon All Saints Day. They were often killed from the buildings, and throughout the winter might be found near the post. In 1877 an unbroken line of caribou crossed the frozen lake near the fort, they were fourteen days in passing and in such a mass that, in the through the ”? words of an eye witness, ‘“‘daylight could not be seen column. They are now seldom seen within several miles of Rae. The ‘Fort Hunter,” Tenony, with seven of his followers was just starting upon a seventy-five mile journey toward the north on the evening of the first, when I learned of his intentions, and after agreeing to furnish a few “skins ” of flour, tea, and tobacco, and to pay a skin a day for a dog driver it was settled that I might accompany them into the hunting grounds where another chief, Naohmby, had objected to my going three months before, on the ground that all the game would desert the country if pursued by a naturalist. I loaded my sled with thirty white fish, three days provisions for the dogs, and fifteen pounds of “dry meat” for the “boy,” while I shared alternately with each of them during the trip, the rank, “ hung fish” driving me to dried meat and the leathery slabs compelling me to return to the fish. As the “ brigade” only intended getting clear of the fort that even- ing I preferred to remain and make an early start the nexf day. We left the fort at daylight on the second, Yahty running before my dogs. Our course was northward for twelve miles, to the end of the Northern Arm of the Great Slave Lake, whence a channela hundred yards in width called Willow River continues for half a milé*before expanding into a small lake extending toward the northeast and connecting by a number of “schnys” with Lac Brochet. » Following’ ‘the eastern shore Of the smal} lake, we crosséd a short portage and traversing a narrow 6 mde dhe eh ee eee, 1 od eS HUNTING THE BARREN GROUND CARIBOU. 49 channel for a couple of miles reached Sah-kah-tohn-tooh, the Lake of the Bear’s Shoulder. This body of water must exceed twenty-five m:les in length. We did not succeed in overtaking Tenony but encamped near the end of the lake with an Indian, who, with his ten year old son and three miserable “ giddies”—Indian dogs—was also in quest of the caribou. He carried a powder horn differing from any that I saw in the North. It was made by boring or burning out a section of the bram ofa caribou’s antler. He would smilingly beg for tea and tobacco, not becoming in the least disheartened by repeated refusals. I was glad to escape his importunities by leaving camp at 4a.m. The brisk trot of our well-fed team soon carried us out of reach of the yells of the giddies as the lash was unsparingly applied in his efforts to keep up with the ~ “ Mollah” who had such quantities of “lee tea” and ‘‘ tobah.” Passing a couple of miles of short portages we reached another large lake called by the Dog Ribs, Quem-tah-Tooh, the Lake of the White Rock, where we found Tenony encamped. The Indians had been argqused by their dogs greeting our approach with barks and howls and were huddled behind a roaring fire with their blankets, once white, now a dirty gray, thrown over their shoulders, their hands outstretched toward the welcome blaze while they guarded the few frozen fish which were thawing and burning at their feet. Behind them a confused mass of dog harness, wrappers, and flat sleds formed a barrier to keep out a score or more of giddies which were crowding about the camp and fighting for an advantageous position from which to watch for the few bones that escaped their master’s teeth. After “drinking tea” we followed the lake shore toward the northwest where a range of granite hills, called Sah-me-t’ ie-kfwa, rose high above the general level of the somewhat rugged country about them. When close to the hills we discovered a small band of caribou toward which the dogs started at their best pace, barking and straining at their collars, and urged to greater exertion by the men who shouted “ Ayee ecwoh, m’nitla” (There are the caribou, now, go!). The alarmed caribou were dashing about in all directions yet managing to keep out of range though several shots were fired before they entered the tim- 50 Tue Orrawa NATURALIST. ber. Around us rose the precipitous snow covered mountains through a gap of which a large stream entered the lake, its cascades giving off clouds of vapor. High above us a bald eagle wheeled in majestic flight with white head and crissum flashing in the light of the rising sun. Cutting our way through a brulé we reached another lake upon which there was an abundance of fresh tracks. An hour later I left the others and started down the lake with the boy before the dogs. Three or four bands of caribou, perhaps fifty in all, soon came out upon the ice. Yahty ran toward the nearest of them followed by the dogs which dashed past him at full cry as soon as they discovered the caribou. I was seated upon tne sled while Yahty ran, holding the sled line in cloud of snow which trailed out behind like the tail of a comet. a The caribou stood motionless until we were within a couple of | hundred yards before making off; they soon stopped, side on, to sur- | vey their pursuers, snuffing the air fora moment; they would throw back their heads and leap high in the air, and again dash away at a swift run, passing patches of smooth ice without a miss step. nee The drifts were small, but the snow was well hardened making a rongh surface for the swift flying sled. Just as I would be about to pull the trigger after taking hasty aim a sudden lurch would nearly dis- jodge me from my seat and perhaps send the muzzle of the rifle sky- wards. I succeeded in killing two and breaking a fore leg of another which ran with undiminished speed, in fact led the band as they entered the timber and so escaped. ; Placingarow of pine boughsat intervals of fifteen or twenty yardsquite across an arm of the lake we concealed ourselves on shore, and waited the appearance of the caribou. Only one band approached our barrier which they followed some distance, but did not venture to cross; they turned away before coming within range, but the following day we were more successful in employing this, a common device of the Dog Ribs. That evening we feasted until a late hour upon the first caribou meat of the season. Several heads were skinned and hung from poles before the fire by the mitten.cords. of the owners and willow hooks. As soon as the outside was roasted the jaw was turned-back and the tongue, one of the choicest bits ofall, slightly cooked. The dogs were yy! io << gules § RPMS Fg, Ka eae ins Hustinc THE BARREN Ground Caripsou, 5T well fed for the first time in months; we gave them the quarters only, and cracked the long bones for the marrow which, raw or roasted, is one of the greatest of Dog Rib luxuries. Look down in pity upon “the savage and his marrow bones” if you will, bet you might perhaps relish that same marrow if you had “ hustled” for those bones yourself as I had done, or you might after running fifty miles pass your plate a second time for bouillon made of blood carried to camp in a caribou’s stomach. [ven the tendons were eaten and the feet also, after roasting them until the hoof could be knocked off. Although I lived some time with the Dog Ribs and spent over a year in their territory, I never knew of their eating the contents of the cari- bou’s stomach as do the Eskimos. The unborn calf, the udder ofa “milk-giving cow, the tongue, the marrow and back fat are the parts held ‘in highest esteem. Tenony fulfilled his promise of returning after “five sleeps,” but marched fifty miles against a heavy gale of wind upon the sixth day to do it. The caribou came but little nearer during the winter of 1893-84. I made three other trips in search of them and travelled five hundred miles in all, driving my own dogs after the first hunt with Tenony, Out of a large number secured, | selected eight choice specimens, and during the winter obtained the skin of an albino, for the museum of the State University of Iowa. Albinism is of rare occurrence among the Barren Ground Caribou. One of the oldest Dog Ribs assured me that he had never seen a “ white deer.” Authorities differ as to the time when the antlers are cast. The new horn begins to grow late in April and the velvet is not all cleared off until November. The old males shed their antlers in December, While in the Barren Ground in March and April, I saw large numbers of both sexes with antlers, and on the 5th of April I killed a buck, four or five years of age, still bearing them. At that season we saw thousands of caribou in the vicinity of Bathurst Inlet, which had evidently wintered there and not approached the woods as in former years. . It is said that only the females reach the sea coast where they drop their young in June. Yet I have seen both male and female caribou wading in the shoal water of the Arctic Ocean south of Herschel Island in July. Or Lo THe Orrawa NatTuURALIsT. TOWN BIRDS. By W. A. D. LEES. (Read before the Ottawa Field Naturalist's Club, rgth March, 1895.) After a year or two with little opportunity to be in the woods or on the waters where birds are most commonly found, one has not much to report of their doings, and hence I am constrained to-night to confine my remarks to “Town Birds.” Everyone of us may see something of these as he goes about the city on his daily business, and to one who has not given the subject much attention it is astonishing what a num- ber of species are found even in the busiest streets. For the student of birds, as well as for those who have only a very casual acquaintance with them, there is alwayssomething new instore,even among the town birds. Seven years ago yesterday, near the corner of Maria and Metcalfe streets when I was only beginning, as they say with children, to “ take notice” of birds, I came upona flock of Purple Finches (I think the other name of Red Linnet, is a better one) and was thrilled by the brilliant colour of their plumage, which to my un- practised eye seemed as if stained by the rowan berries upon which they were feeding. Less than a month ago, at the same street corner, I saw my first flock of those erratic winter visitants the Bohemian Waxwings, and I-do not think that either the lapse of years, or the number of birds I have come to know since those first red linnets, in any degree les- sened the thrill of pleasure with which I welcomed. another new ac- quaintance to the list of my bird friends. The rowan trees along the streets and in public and private grounds, when in fruit, give us many opportunities of seeing birds which, like these Waxwings, visit us from the far north. Most of you will remem- ber how, some ten years ago, the Pine Grosbeaks came down in such numbers, and were so apparently indifferent to the presence of man, that they might almost be taken by hand as they fed upon the berries dropped by their hungry comrades in the trees, upon the snow be- neath. Almost every neglected vacant lot with its crop of weed seeds attracts in due time its roving flock of .Redpolls, or their near relatives the Goldfinches, for these latter often spend the winter with us, escap- . — Town Brirps. 53 ing, in their sober garb of olive brown, the observation of those who q only know them in the brilliant black and gold of Summer. Pine Sis- kins too may be looked for whenever and wherever the white cedars have cones, in the seeds of which they seem especially to delight, and wherever such small game abounds, one has not far to seek their hand- - some and voluble but deceitful enemy the Shrike. Hawks too are more or less common according to the food supply, and my note-boo gives ‘me both winter and summer records of the Sparrow Hawk in the busiest parts of the city. A hawk was captured alive last fall at the City Hall square, and kept some time in confinement, but proving an undesirable pet, it passed from one owner to another and at last made its escape. I did not ascertain its species, but a remarkably tall legend connected with its final disappearance might readily suggest the possibility of its having been a Fish-hawk. Even such a man-hater as the Ruffed Grouse, or as we commonly, but I believe incorrectly, call him, the Partridge, occasionally pays the city a visit, and has been known to fly through the glass otf a window and land on the dining room table, a place to which, under the strin- gency of the present game laws, he usually finds his way by a less d-rect route, and, I might add, under a different name from either of the above. Turning now to the summer birds, many are almost too common to need mention: such, for instance as the omnivorous and belligerent House Sparrow, for whom the name English, or even European, is now more of a misnomer than ever, since he has annexed the whole Ameri- can continent. The Robin and the Song Sparrow may be heard and seen in all parts of the city, and the Night Hawk and Chimney Swift, in their season, are familiar objects to a'l who even glance upward. One of the former seated on a flat roof forms the subject of a very good photograph, edited (if I may use the term) by one of our members, who was quick enough to take advantage of the situation from the back window of a Sparks Street studio. Tree Swallows and Purple Martins are only a little less common, bothspecies being regular summer boarders _ at the Albion Hotel, which has long sinceceased toentertain other guests 54 THE OtTtrawsa NATURALIST. than these occupants of its sky parlors. Many a period of enforced wait- ting in an unattractive court room across the street has been pleasantly relieved by these sam2 birds. From the windows of the same building I have often caught other little glimpses of bird-life without, which were in pleasing coatrast with the glimpses of man-life to be had within. Here I have seen amongst others, Chipping Sparrows, Yellow Warblers, Warbling Vireos, Downy Woodpeckers, and Cedar Waxwings ; a pair of the last industriously ridding the ashtrees of caterpillars, andso close that I could easily distinguish the red wax-like appendages to the wing-tips, from which the bird takes it name. These birds are in due season also industrious fly-catchers, working in exactly the same way as the true Tyrannide, and so it is a question if, after all, they do not earn a right to at least some of the fruit they so greedily consume. Amongst other birds more or less common in busy parts of the city — may be named Bluebirds, Vesper Sparrows, and Savanna Sparrows, and even that handsome Woodpecker, from whose thirty or more names the American Ornithologist’s Union has chosen “ Flicker,” appears in my note-book as a town bird. That surprises are often in store for the observer of town birds is shown by such records as those of a Brown Creeper climbing a tele- graph pole at the corner of Elgin and Queen streets, a Red-breasted Nuthatch on another telegraph pole at the corner of Elgin and Nepeaa streets, and a Wood Peewee in the back-yard of a Sparks street hard- ware store. ; It will be noticed that in the above paper I have made no mention of the various small patches of wood-land in outlying parts of the city, such as those about Patterson’s Creek, the old race-course, McKay’s bush, and the like, where nine-tenths of all the birds that visit the dis- trict may be noted by a careful observer, while the Lovers’ Walk and Majo:’s Hill Park, in the very heart of the city will furnish records of many of the rarest and most retiring of our wood-birds. Neither have I mentioned another favorite haunt of the birds oa Sussex street where the very shyest of them are so tame that they never leave their perches, even on the nearest approach of man. I mean the Geological Survey Museum. OBITUARY. 55 SER TST SSeS: BT James Dwicut Dana. James Dwight Dana, one of the fathers of American Geological Science, died at his home in New Haven, Conn., Easter Sunday, the 14th day of April, 1895. He was born at Utica, N.Y., February 12th, 1813, and was therefore in his 83rd year. He graduated at Yale when only twenty years of age, and evinced great aptitude for the natural sciences and mathematics. or two years he was teacher of mathematics in the U.S. Navy. He is next seen as assistant to Prof. Silliman at Yale Coliege. In 1838 he published “A System of Mineralogy,” which won for him the admiration of the scientists of two continents as mineralogist and geoloist. In 1838, he sailed for the Southern and Pacific Oceans, with Lieut. Wilkes, in charge of the squadron, whose expedition lasted four years. ‘4 Reporton Crustacea,” 1852-4. “ Report on Loophytes,” 1846 ; *‘ Report on the Geology of the Pacific, 1849 ; besides “ Science and the Bible,” in Bibliotheca Sacra, published in 1856-7, occupied his time during the 15 years which followed his return from the Wilkes expedition. In 1885 Dana succeeded Prof. Silliman. as Prof. of Natural History and Geology at Yale. His first “ Manual of Geology ” was puolished in 1863—this was followed by a ‘* Text Book ] of Geology for Schools and Academies,” 1864, and latterly ‘‘ Corals and Coral Islands” in 1872. In this year he was awarded the Wollaston gold medal by the Geological Society of London. He was elected President of the American Associaticn Ady. Science for the first time in 1854, and was an honorary, corresponding or active fellow of nearly all the Geological Societies of Europe und America. His con- tributions and numerous writings in Silliman’s Journal as one of its editors, in the Trans. Acad. Nat. Sc. of Philadelphia, in the Proc. Amer. Acad. Sc. and Arts and in numerous other channels are too well known to be commented upon in a passing sketch like this. He had just completed the last edition of his ‘‘ Manual of Geology ” which had been used so extensively as a text book in the colleges and universities of America and Europe. His was a life of genuine usefulness to his generation. 56 Tue Orrawa NATURALIST. NOTES, REVIEWS, AND COMMENTS. Geology.—Baitey, Pror. IL. W., M.A., Ph. "., F.R.S.C.—" Pres liminary Report on Geological investigations tn south-western Nova Scotia.” Being Report Q. of Vol. VI., Annual Report, Geological Survey of Canada, 1892-93, published ¢895, 21 pp. . Pending the publication of Dr. Bailey’s final report addressed to the Director of the Geological Survey of Canada, the preliminary report here referred to has been publishedand forms part of the 6th Annual Report of the Geological Survey. The delineation of the granite areas in South- Western Nova Scotia, the South and Blue Mountains, Tusket Wedge, the Barrington area, the Shelbourne and Port Mouton areas are given and © the reader is referred to Sir Archibald Geikie’s descriptions of South- Eastern Ireland as applying, almost word for word, to the granites of © South-Western Nova Scotia. The Cambrian Succession, as seen ~ in Queen’s Co., is carefully described and the possible existence of pre- ~ Cambrian rocks pointed out. As to the Devonian System our ~ knowledge was still incomplete. On pp. 14 and 15, a brief summary of © the palzontological results obtained by Dr. Ami after examining the col- — lections in the Peter Redpath Museum and in the possesion of the — Geological Survey is given. Most of the collections from Nictau point to Eo-Devoniantime. The Triassic and Post-Tertiary system are next Ciscussed, and the economic minerals receive considerable attention. . MatTHEw, G. F., Dr., M.A., F.R.S.C., “ Early Protozoa,” “ The Amer can Geologist ”—Vol. XV., No. 3, pp. 146-153, March, 1895. In this paper the author reviews Mr. L. Cayeux’s paper describing certain so called Pre-Cambrian Radiolaria. No less than 45 different kinds of rhizopods have been described and are figured on one plate. Mr. Cayeux’s microscopic slides were examined both by Dr. G. J. ~ Hinde, of London, England, and by Dr. Riist, of Hanover, Germany. These two gentlemen, whilst not agreeing with his (Cayeux’s) conclu- sions, admitted that the forms were organic.” WINCHELL, W. H., PRor.—‘“' The Stratigraphic base of the Taconic or Lower Cambrian.”—“ The American Geologist,” Vol. XV., No. 3, pp. 153-162, March, 1895. Nores, Reviews anb ComMMEN'Ts. 57 This contains a general sketch of the history of geological investi- ations, both in Great Britain and America, regarding the base of the fossiliferous series—of the lower Cambrian. Tie views held by Sedg” ick, Murchison, Dr. Hicks, by Barrande in Bohemia by Sir Archibald Geikie are freely quoted—whilst in America those of Dana, Logan, ; Walcott, Selwyn, Ells, Van Hise and others are also cited. Director " Howley’s work in Newfoundland is likewise referred to, as well as Dr. -Matthew’s researches in New Brunswick. Taytor, Frank B.—‘‘ The Second Lake Algonquin.” The American Geologist, Vol. XV., No. 3, pp. 162-179, March, 1895. This contains the concluding article by Mr. Taylor on the above subject as elaborated from data obtained in the North Bay and sur- rounding district around Lake Nipissing in Canada. “The attitude of the deformed plane;” the order of changes in Niagara and Lake Algonquin, the St. Clair Flats, evidence of recent elevation and tiiting in contiguous regions——all are elaborately discussed. er apy A Reena aT a Mr. Taylor sums up his conclusions regarding the rise and fall of the _ waters in the straits and lake of Nipissing—of Superiur and Lake Erie. The suggestive facts mentioned point,” naturally, ‘‘to a correlation with ; the eastward uplift which deformed the Nipissing plane with the elevation _ of the north-eastern barrier of Lake Ontario and of the deposits of the Champlain submergence, in the Champlain, Lower St. Lawrence, and - Hudson Bay areas. I Girty, Geo. H.—Development of the corallum of Favosites Forbisi, Var. : ocetdentals.”—The American Geologist, Vol. XV., No. 3, pp. 131- + 146, March, 1895. t Mr. Girty, who has carried on his researches at Yale, under Dr. C. E. Beecher, describes “ve stages in the growth of the corallum of the above species. He carefully describes the interstilial cells or buds which can appear only when divergence of the older corallites permits— ually “in the angles where the older corallites meet.” Favosites spinigeurs, Hall, and F. contcus, Hall, both Silurian co- s, have also received attention and study for comparison, likewise . hemisphericus. Mr. Girty observes the noticeable fact that the initial orallite in Favosites gives rise to buds which are (1) /owr in number, d (2) all on one side (dorsal) of the corallum. Favosifes presents an Kee tae 58 Tue Orrawa NATURALIST. interesting form for the study of mural pores and their relations. The affinities of this genus are likewise discussed amd seem to point to Aulopora and Romingeria—rather than any other genera of the fer- forata excepting Michelinia and Pleurodictyum. The first stage of Pleurodictyum and of Favosites is an auloporoid stage represented by the initial cell. Geology of Aylmer—Onthe 27th of March, 1895, oneof our mem- | bers, Mr. T. W. E. Sowter, delivered a lecture on the “‘Palzontology and Geology of Aylmer at the Academy. The lecture proved to be very interesting and was illustrated by a large suite of specimens con- sisting of rocks and fossils, some new to science. We are pleased to state that we expect to receive a paper from Mr. Sowter on the above subject for the pages of the NATURALIST in the near future. Zoology—TZunicata of the Pacific Coast of North America. — 1. Perophora annectens, n. sp. By WILLIAM E. Rivrrer. Proc. Cal. Acad. Sc., Vol. IV, Part I, pp. 36-85, Plates I. II. and III., figs. 1-39. Sept., 1894. This is an interesting and exhaustive biological study of one of © those interesting species of tunicates which abound along the rocky coasts and shores of the North American Pacific. The species here described for the first time is from Monterey Bay, California. The author gives first a general summary of our knowledge of simple and compound ascidians, and points out that with the result of his researches, the importence of this old classification becomes “ 72/.” Perophora Hutchinsoni, from Australia, and P. vzridis from the New England coast of North America are the latest forms brought under Wiegmann’s genus established in 1835. Then follows a diagnosis of ~ the species with a general description dealing with the mode of occur- rence of the ascidiczsoids in their colonies. Their histological charac- ters are very ably described. This form is a particularly favorable one to study owing to its wonderful transparency. The zes¢ and the origin of its cells receives special attention. The results of Ritter’s work con- firm those of Salensky and Kowalevsky on the same subject, showing that the cells of the tunicate test are not derived from the ectoderm but from the mesoderm. Dr. Ritter says: “I believe this to be due to the fact that the cellulose substance of the test is here being formed..— I have no evidence that the matrix or cellulose portion of the test is produced as a secretion of the mesodermal cells imbedded in it...... _Nores, Reviews anp ComMENTs. ensky also regards the processes present as having to do with the mation of the cellulose substance.” The musculature, the pharyageal apparatus, interesting notes on he parasites of the tentacles, the branchial basket proper, the endostyle, the sub-neural gland, the digestive tract and its parasites, each received a share of careful description. Then the reproductive and circulatory systems are discussed. The movements of the heart and the character of the blood cells are also noted, some new light being thrown on the latter although Roule has arrived at very similar results from his researches on the simple ascidians from the Coast of Provence, France. hree plates accompanying the paper. The figures were nearly all out- lined by the author with the aid ofan Abbé camera lucida.—H. M. Amt. Zoology—Verritt, A. E.— Distribution of the Echinoderms of North-eastern America.—Amer. J. Sc. & Arts, Vol. XLIX, 3rd Ser., No. 290, pp. 127-140, February, 1895, also idid, No. 291, pp. 199- 3 212, March, 1895, New Haven, Conn. The following species of Echinodermata from Canada and other British possessions in North America are recorded in these interesting papers by Prof. Verrill. ASTERIOIDEA. _ No. | Genera & Species. Author. Locality. Remarks. Pontaster hebitus. .| Sladen. ....| Nova Scotia and New- ' foundland aon. 0 ies) son's Banks off thecoast. Pseudarchaster in- 1 termadius....... Sladen... .:.- WNOXA: SCOCIAs, ie dees nee Acircum—polar species. Ctenodiscus crispa- PERSE i feie,''e 3% Dub. and orem, .1.]. bay of Hundy.-s a.0 es Psilaster Florez . | Verrill...... Banks off Nova Scotia. .| Taken by Glouces- ter fishermen. Pentagonaster gra- nularis ........ | Perrier. ....| Banks off Nova Scotia. .| Taken by Glouces- ter fishermen, Hippasteria _ phry- BM se Bis oo Agassiz..... Bay of Fundy, Nova Scotia’ \acucwesck «ar , Last thunder storm, 16th October. . bs First measurable snow, 5th November. 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Mantrosa, 7 The exposures at the latter places have been frequently described and the building stone from these quarries has been largely used in con- structions in Winnipeg, they are therefore well known. The principal difference between these beds and those of the lower mottled limestone consists in the very white nature of the lighter portions, as also the _ general soft or chalky texture of the uncrystalline particles scattered throughout the whole mass leaving chalk or lime marks on the hands after handling. The mottling is of a light brown and is in irregular patches, but so general as to affect the whole of the beds giving them a general yellowish tint. It dresses easily and makes very fine building and ornamental stone. The papers by Prof. Panton* and Mr. Mc- Charles* give graphic and full details regarding this stone. As to the thickness of the formation here, we were at first obliged. to depend on a calculation based on the known dip of the beds at Grindstone Point of about 50 feet in six miles—assuming, however, that this dip is approximately the same at the south, the thickness of the limestone below Selkirk would be the total dip given in about 30 miles or 250 feet. Since the field work was finished a well has been drilled for the fish hatchery at Selkirk West and the bottom of the limestone passed through was found at 262 feet. Deducting then the thickness of the lower beds seen on Lake Winnipeg leaves «bout rro feet of the upper mottled rock of Seikirk. To this may be added about 20 feet for beds between Selkirk and Winnipeg of the transition type as at Clark’s Point. There is a strong probability that the beds at East Selkirk and Lower Fort Garry are brought up by a small fault running east and west very near the northern limits of the former.t ‘The amount of the upthrow is very uncertain and we can assume that the main part of these expos- ures are to be added to the thickness given in the drilling. I would not hesitate therefore in calling the thickness of these beds down to the recognized yellow beds of the Cat Head type, at least 150 feet, making a total of 290 feet of the limestone series. ‘To the north the upper *Transactions No. 15, 20 and 27, Man. Historical and Scientific Society, Win- nipeg. +The foot-steps of time in the Red River Valley by A. McCharles, Transactions No. 27, Man. Historical and Scientific Society. tS THe OtrawA NATURALIST. beds are found to decrease greatly in thickness and as noted before gradually thin out to less than one bundred feet north of the mouth of the Saskatchewan. a 5) Farther to the south at Rosenfeld, the evidence of drilling gives 2 thickness of limestone, undoubtedly the same series, of 305 feet,* thus showing a slight tendency to increase in that direction. ce" HUDSON RIVER BEDS. Under the city of Winnipeg, red, impure limestones are reached in drilling for wells. The surface of the underlying rock slopes very abruptly to the east, the depths at which it is found varying from 60 feet on the west, and under most of the city, but increasing suddenly to-112 feet at the outer end of Point Douglas + This seems to be about the extent of these soft beds to the east. They extend west, and are to be found at Little Stony Mountain in an undisturbed state, capped by beds of an ashy coloured dolomite. The thickness of this part of the forma- tion 13 indefinite, but part of the section has been recorded by Prof. Panton, from the exposure at Stony Mountain. Here the dolomite seen at Little Stony Mountain. appears at the surface on the top of the hill, dipping slightly to the southeast, showing a tilting up of the under- lying beds, and a consequent break in the section between this place and Stonewall. The section recorded amounts to 11o feet. +‘ The following is a vertical section of the rock, as observed during the digging of a well at the southwest part, upon which the Provincial Penitentiary is located.” 1---20 feet solid hard stone like that at the quarrfes. 2—4 feet thin layers of the same. 3-2 feet solid rock. 4—-6 feet thin and broken. 5 —S feet yellowish rock. quite ochreous. 6 --10 feet reddish layer, fall of fossil shells. 7—60 feet, a mixture of yellow and red, containing some flinty material.” Between the top of the Stony Mountain beds, and those at Stone- wall, where the rocks appear to be Niagara, there are no expesures, but at the latter place the section in the quarry seems to be very similar in *Trans. Royal Scciety, Canada, Vol. IV. 1886. +Transactions No. 27, Manitoba Historical and Scientific Society, Winnipeg. +Transactions No. 15, season 1§94-5, Manitoba Iistorical and Scientific Society, Winnipeg. ia STRATIGRAPHY OF THE CAMBRO-SILURIAN Rocks oF E. MaAnirosa. 73 some respects to the upper part of the Stony Mountain section, but the fossils found are quite distinct. They evidently belong to a higher horizon. The gap in the series is evidently made up of soft shaly beds with pussibly some sandstone at the base of the Niagara. The section given by Dr. G. M. Dawson for the Rosenfeld well* I would be inclined to interpret as passing through the equivalent of the Stonewall beds as well as the Hudson River, of Stony Mountain, referred by him to the Maquoqueta shales of Wisconsin, and would arrange part after the following : 7—limestone, - - - - 15 feet 8—red shale - - - - 6 feet g—grey shale - - - - 10 feet > Niagara. Io—limestone - - - - - 30 feet | I1—fine grey sandstone, 40 feet. fe far ie fect f Hudson River of Stony Mountain. I14—cream colored limestone, 305 feet Winnipeg limestone, Trenton and Galena 15—red shales - - - - 75 feet\ Winnipeg sandstone and _ associated 16—soft sandstone - - - 50 feet/ Shales. This would leave the Hudson River section with a thickness of 1go feet, which is not far from the probable thickness in the southern part of the province as this formation thins out toward the north, and is not seen in the section on either the Little Saskatchewan or Great Saskatchewan rivers. If we had a series containing several successive beds of limestone, there would, in a!l probability, be something seen of it on the northwest shore of the lake, between Saskatchewan river and Selkirk Island, where we have the Silurian or Niagara beds, and the top of the upper mottled or Galena limestone. On the Little Saskatche- wan the probable representative is in the shales recorded by Dr. Bell at the head of the four mile rapid. A summary, then, of the several beds could be placed in the form of a section, in decending order, giving the total thickness for the Cambro-Silurian of this district, as less than six hundred feet : Hudson River Shales..:. 72... 5. 190 feet Upper Mottled Limestone...... 150 feet Cambro-Silurian 4 Cat Head Beds............... 70 leet Lower ‘Mottled... .. abundantly clothed with them, that the surface of the body exhibits a constant shimmering appearance. Certain ciliated patches subserve sensory functions, such as smell, etc., but the excretory or ‘‘ segmental ” organs, characteristic of the Vermes, always possess a ciliated canal for ensuring the outflow of waste products. The digestive tube also in these creatures is observed to be lined with cilia, in most cases, CILIA. 83 Important, however, as cilia are, in adult stages of the animals referred to, they are not of inferior importance to the newly hatched _ young. Sponges, starfishes, zoophytes, jellyfish, worms, etc., pass through a ciliated larval condition, with rare exceptions, and the cilia as in the active Infusorians aid in progressive locomotion. It might appear that in the highest animals, provided with special limbs for locomotion and with complicated respiratory and digestive organs, there is no necessity for cilia. It is not so. They are often of importance in the Vertebrates, although sometimes they may be found to persist, when the necessity for them has apparently gone. Thus Amphioxus, the lowest of fishes, possesses a ciliated skin, in the young condition. Larval lampreys, too, exhibit delicate hairs upon the external integument, a remnant no doubt of the ciliated condition, though the hairs are now rigid. The usefulness of such cilia and brist- les is difficult to discover. Similarly, the cilia which line the gullet in newly-hatched fishes, such as the haddock, have no doubt merely an ancestral meaning. No food passes down the gullet, for the creature is mouthless and subsists by absorbing the contents of the yolk-sac. The cilia soon disappear, though in many Vertebrates, such as the the frog, the mouth, throat, air-passages, stomach, etc., are ciliated through life. Nor are they absent from the highest animals, but even in man, they occur in the nasal passages, the respiratory tubes, certain auditory canals, the secretory ducts in the tongue and many organs, the ovarian _ passages, and other cavities ; but their use now appears mainly to be _ the expulsion of matters hurtful to the sensitive epithelial surfaces referred to. The central canal in the human spinal cord is lined by ciliated cells in childhood, but these cells are obliterated later. We thus see how important is the part played by these minute and insignifi- cant organs. ‘They are efficient for locomotion, they aid in securing food, they assist in excretion, they act protectively by driving hurtful matters away. It remains to briefly describe cilia and their mode of action. A cilium is simply a thread-like continuation of the protoplasmic cell to which it is attached. Its base, under the highest microscopic powers, differs optically from the tip ; but practically the cilium is merely a ee ee 84 Tue Orrawa NATURALIST. thread of undifferentiated protoplasm. From the surface ofa cell there may project one to fifty cilia. This surface may appear like a hyaline layer, but it is a false appearance, and is due to the swollen bases of the cilia. Each cilium, indeed, is enlarged at its base, but narrows immediately above. This narrow neck is succeeded by a swollen portion which gradually becomes attenuated towards the tip. They vary in length, those 1-3000th of an inch long being of medium size, some are shorter, others longer. Vigorous lashing movements are characteristic. of cilia. The movements are too rapid to be distinctly seen, the vibrations being usually 700 to 800 per minute. If a fragment of the ciliated lining, say the mucous membrane from the roof of a frog’s mouth, be microscopically examined in normal salt solution, the surface shows an unceasing shimmering appearance, com- parable to a rapidly waving field of barley. Each cilium, it has been found, is erect and straight. Then it bends rapidly on itself, and, very much more slowly, resumes the straight condition. The force of the vibrations is in one direction, and as successive rows of cilia do not bend simultaneously; but in regular succession, the result is a progres- sive rythmic undulation. When the cilia are arranged in a circle or crown, as in a Rotifer, say J/elicerta, the appearance produced 1s that of a swiftly rotating wheel. Hence the Rotifers have been erroneously called wheel-animalcules. The vibrations of the cilia coniinue for some time after death : but, in an injured, feeble, or dying condition, they are abnormally slow, and can then be best observed. Heat (up to 104° F.) increases their vigour, carbonic acid gas arrests them, while under the influence of oxygen, and of induced electrical currents, the vibrations may he repeatedly revived. They are independent of nervous control. They are automatic and as inexplicable as the inherent contractibility of muscle. Ranvier’s experiments, indeed, show that the living protoplasm, of which cilia are composed, is essentially the same as that of ordinary protoplasmic cells. ACETYLENE. ~ 85 -ACETYLENE, ‘THE NEW ILLUMINANT. By Henry S. Marsu, A.I.C., Assistant Chemist, Central Experimental Farm. The value of Acetylene as an illuminating gas is perhaps one of the most important questions amongst the manyat present being discussed by those concerned in the lighting of our houses and thoroughfares. The preparation of Acetylene gas by the action of water on the “ carbides” has been known for some fifty years, but probably owing to our ignorance of the valuable properties of this gas, or the difficulty in obtaining it pure and in quantity, Acetylene as an illuminant was practically unnoticed until 1892. In that year, Maquenne _pre- pared it by heating together, at a high temperature, barium carbonate, magnesium and_ charcoal ;_ the resulting product when treated with water yielding the gas Acetylene. In 1893, Travers obtained Acetylene from calcium carbide, prepared by strongly heat- ing together calcium chloride, charcoal and sodium, in a similar manner to that already referred to. The product, calcium carbide, evolves Acetylene when treated with water. (Proc. Chem. Soc., 1893.) These results, however, while valuable and _ interesting as scientific records, were of little commercial importance, owing to the ex;-ense necessary in obtaining the materials of manufacture. The possibility of producing Acetylene on a large scale and at a _ reasonable cost, oy the process discovered by Wilson, has within the past year been demonstrated by scientists and experts in both England and America: Mr. T. L. Wilson made his discovery by chance, as is very often the case. While aiming at the attainment of an entirely different object, Mr. Wilson experimenting 1n_ his laboratory at Spray, North Carolina, U S.A. (Jour. Soc. Chem. Industry, Jan. 1895), obtained after one of his fusions, a black, brittle mass, which on being brought into contact with water, rapidly effervesced with evolution of Acetylene. On further investigation, he came to the conclusion that the brittle, black mass was calcium carbide. It had been produced by fusing together finely powdered lime and coke in an electric furnace 86 THe OrrawA NATURALIST. with a current of 4,000 to 5,000 amperes. The equation which repre- sents the action of water on this product, is as follows :— GaC, + . BO: t= Cals ~ CaO. Calcium carbide + water = acetylene + calcium oxide. Calcium carbide (CaC,) is a dark gray, very brittie, porous-look- ing substance with a Sp. gr. of 2°22 at 18 degrees Centigrade. It con- tains 62°5 per cent. of calcium and 37°5 per cent. of carbon. On being brought into contact with water, as above stated, a double decomposition takes place, the calcium of the “carbide” combining with the oxygen of the water to form calcium oxide, or, to speak more correctly, owing to excess of water present, slaked lime; the carbon at the same time uniting with the hydrogen of the water to form Acety- lene (C,H.), which is readily recognized by its penetrating odour, closely resembling garlic. Acetylene is a colourless gas having a Specific gravity of o-9t at normal temperature and pressure; 1‘1 volumes of the gas are soluble in one volume of water. The gas when inhaled possesses the same poisonous properties as carbon monoxide, but to a greater extent. Prof. Vivian B. Lewes, of London, England, in a paper read before the Society of Arts, says that, ‘‘ owing to the intense richness of Acetylene, it can only be consumed in small, flat flame burners, but under these conditions emits a light greater than that given by any other known gas; its illuminating value, calculated to a consumption of 5 cubic feet an hour, being no !ess than 240 candles.” It may be liquified (according to Andsell) at a pressure of 21°5 atmospheres at zero centigrade. This property suggested to some the probable use of liquid Acetylene for portable lamps, lighting of railway carriages, etc., since thus a large volume of the gas can be stored in a very smallspace. It has, however, been pointed out that a sudden shock to the liquid or compressed gas frequently causes decomposition with violence. Hence, this use of Acetvlene would probably be attended with danger. The carbide of calcium might be used for the purposes just referred to without any such risk, and consequently has been proposed as a‘convenient and cheap form to be used where liquid Acetylene would be desirable on the grounds of portability. Specially designed Orrawa PHYLLOPODs. 87 lamps might be easily constructed for the production of Acetylene directly from the carbide. The latter, for railway work, could be stored in steel cylinders (the same in which oil gas in the Pintsch system at present is compressed), and bya self-adjusting stopcock the water could be brought in contact with the carbide, thus evolving the gas steadily, and illuminat- ing the cars with a white, cool flame. The same principle, with minor alterations in detail, has been suggested with regard to “‘ acetylene lamps” for use where other gas could not be obtained, such as country houses, etc. Such lamps would contain the carbide in the stand or pedestal, and the water simply be allowed to drop on to it. The gas so liberated could be burned from a small steatite “ hole” burner. Another novel suggestion is its use for bicycle lamps and for camp lights. However, the chief use of the gas would be in enriching water gas or low grade coal gas, for which, providing its poisonous qualities did not disqualify it, Acetylene would prove of the greatest value. We have not as yet any precise data'as to the cost of calcium carbide, although some authorities have stated its price at about $15 to $20 per ton, and experiments carried out on a practical working scale have shown that one ton of the carbide yields on the mere addition of water between 10,000 and 11,000 cubic feet of Acetylene. Atthe same time, about 1,500 pounds of lime are produced, a material of some value in gas works. A consideration of the marvellous illuminating power of this gas together with its simple and cheap production, leaves very little doubt but that its manufacture bids fair to become a very formidable rival of the foremost gas-enrichment processes now in practice. OTTAWA PHYLLOPODS. By ANDREW HALKETT. Two years ago, when examining a shallow pool near New Edin- burgh, I saw some transparent little creatures actively swimming about. Were they the larvz of some insect ? I caught a number of specimens and on placing them in a glass jar and observing their structure and move- ments, set about determ’ning what they were, as they were quite new 88 THe OtTrawa NATURALIST. tome. Probably few Ottawa naturalists have had the opportunity of © studying these wonderful little creatures, and I venture, therefore, to present a few notes on their structure and peculiarities. They are crustaceans, of the order Phyllopoda, sub-order Branchi- opoda. The body, which is of a glassy transparency, is about half an inch long, the head being very distinct, though there is no line of demarcation between the thorax and abdomen. ‘The eyes, antenr 2, limbs, heart and forked tail, when examined through the microscope, are very beautiful. They are typical Entomustraca, for the body is divided up into segments. The anterior antennz are short and delicate and difficult to distinguish. In the male the head is large, broad, and — the posterior antennz are converted into claspers, having the base very thick and massive, while the tip is knobbed or rather hooked. The eyes are very remarkable and quite unlike any other crustacean, so low in zoological position. Carl Gegenbaur, in his ‘‘ Elements of Compa- rative Anatomy,” draws special attention to the unusually interesting character of the eyes. The Entomostraca, as a rule, possess very simple eye spots, but in the Phyllopods, as Gegenbaur staies, “‘ we mect with a facetting of the inner surface of the cuticle covering the cye, the facets corresponding to the crystalline cones.” “lhe German anatomist further points. out ‘‘ by their power of movement. and their position immediately below the chitinous carapace the eyes of the Branchiopoda form an intermediate step towards those in which the chitinous carapace takes a more direct share in forming the optic organ.” Further, the position of the eye, on a stalk-like process (in Ar’emza and Branchipus) presents a point of affinity to the higher crustaceans, such as lobsters, crabs, etc., which possess projecting stalked eyes. The last segments of the body form a long slender tail, the ter- minal fork being exquisite in appearance, for under the microscope it is like burnished gold, and studded with innumerable glassy hairs. In front of the tail, the body is furnished with a large number of limbs, so modified as to perform the double function of locomotion and respira- tion. ‘They are virtually gill feet. The heart is a long tube, made up of a series of chambers, and, as is usual in Arthropods, it is dorsal. ‘The circulation of the blood, driven by this pulsating heart tube in the Orrawa PHYLLOPODs. 89 back, can be watched through the microscope. A number of specimens were seen to be provided with a pouch immediately behind the limbs. These were females. This pouch is continually swayed about from side to side, and contains opaque, globular eggs. From these eggs minute creatures, like small mites, emerge in the nauplius or larval condition. As the shallow pools inhabited by these creatures are liable to dry up, the eggs which drop to the bottom possess amazing vitality. They can endure heat and dryness for long periods; but the young hatch out immediately the ponds are filled by a rainfall. I have reason to know this, for the pond from which I obtained the Phyllopods in 1893 was, soon after, dried up. I waited patiently for a year and again _ visited the spot, but could obtain none. ‘The pond was dried up, and if any Phyllopods had hatched out they had wholly disappeared. On Good Friday, this year, I went to the place and found the water culd and icy, so that there were few forms of life visible, and no sign of the beautiful creatures I was looking for. Eight days later, however, I went again. It was evening and the water was warm. They had now appeared in abundance, and were swimming abcut in shoals, like tiny minnows. They dart away when startled just as a fish does, but soon tire and are readily captured. Several visits to the pond enabled me to take a great number, sufficient for purposes of study; but the pond soon dried up, and no more were to be had. They glide about in a vessel of water aud are never for a moment still. If noticed closelv, they are seen to swim back downward with the numerous feet turned towards the surface of the water. No creatures could be imagined more active, delicate and graceful in their movements. Their structure and peculiar habfts of life and development are of the highest interest, and they appear to be extremely local in their occurrence. A closely related species is Artemia the Brine Shrimp which lives in saline waters such as Great Salt Lake. Packard tells us that a Russian naturalist found by experiment that it was possible to convert the Brine Shrimp A7femia into the fresh-water Branchipus by reducing the _ salty character of the water. This experiment has been much ques- tioned, and it must be granted that such an alleged conversion of one species into another is astonishing. At any rate Phyllopods in their habits and breeding are unquestionably most remarkable creatures. In conclusion I wish to express my indebtedness to Professor Prince Dominion Commissioner of Fisheries, for suggestions in making these notes upon this interesting crustacean. 90 THE OTTawsa NATURALIST. NOTES, REVIEWS, AND COMMENTS. RECENT GEOLOGICAL PUBLICATIONS. tI. TAYLOR, FRANK B.—MWagara and the Great Lakes, Amer. J. Sc. and Arts, Vol. XLIX., 3rd Ser., No. 292, New Haven, April 1895, Dp. 249 270. ‘ 2. BEECHER, CHas. E.—Structure and Appendages of Triundeus, ibid. Ppryo7-g27, AFI: Td. 3. CHALMERS, Ropert. —Ox the Glacial Lake St. Lawrence of Professor Warren Uphams, ibid., pp. 273-275. ~ 4. WriGHT, G. FREDERICK.— Observations upon the Glacial Phenomena of Newfoundland, Labrador and Southern Co ibid., pp. 86-94. 5. Witiiams, H. S.—On the Recurrence of Devonian Fossils tn Strata of Carboniferous Age, ibid., Pp. 94-I0T. 6., CoimMan,;, A,AP., Pu. “Di, Antholite from Ene Ontario, Amer. J. Sc. and Arts, Vol. XLVIIL., 3rd Ser., No. 286, New Haven, Oct. 1894, pp. 281-283. 7. Dana, JAMES D.—AManual of Geology, 4th edition, New York, 1895, 1,088 pages; contains 1,574 illustrations besides two geological maps. 8. Horrmann, G. C.—Chemical Contributions, etc. Geological Survey of Canada, Part Annual Report V., Ottawa, 1895. Contains a large amount of valuable information on the geological resources of all the Provinces of Canada and especially of British Columbia. Entomology.—UnusuaL ABUNDANCE OF MELOoID Larvaé.— _ On Saturday afternoon, June 8th, near the steps leading down to ~ the Canoe Club House at Rockliffe Park, my attention was caught by a number of small bees which were busy upon the blue flowers of a Cynoglossum. These bees belonged to a common species, Hadictus aiscus,waich is black, with white bands upon the abdomen, and somewhat fulvous pubescence on the legs and thorax. The individuals which had attracted my attention, however, had apparently a bright rufescent or orange thorax, and I recognized immediately that they were carrying, albeit unwillingly, numerous little larva, which are known as triungu- lins, the first stage in the life of. blister-beetles. Continuing my stroll along the river road eastward, I found that around every plant in bloom, and especially around the abundant clumps of raspberry, the swarming bees carried their load of the little active larvae. The bee v infested ; there did not seem to be an individual exempted. Several % a Nores, Reviews anp ComMMENTs. 91 already mentioned was the most abundant and also the most generally other species, however, had more or less adherents, those most con- spicuous being Prosopis affinis and Ceratina dup/a. Several infested _ individuals of a small wasp—Odynerus albophaleratus—were also observed. On the other hand, some species of bees seemed to be exempt. Honey-bees—AZis me/lifica—were very numerous about the raspberries, but I could not find that one of these carried a larva, and this was also the case with the large Ana’rena nivalis, which was abund- ant. A careful ex.mination of the flowering plants disclosed only a few of the larvz crawling about the blcssoms, but the number carried by _ the bees was quite extraordinary. The larva lurks upon the blossom _ until a bee visits it, and then crawling actively upon the unfortunate pilferer of sweets, clings firmly to its thorax. It is a slender little thing, orange-red in colour, except the black eyes, and somewhat pediculus- like in shape. The legs are long and provided with long claws, and these enable the larva to obtain a firm hold upon the hairs with which the bees are more or less clothed, and it is then transported to the cells _ constructed by the host tor its own future brood, and therein finding suitable provision, lives as a parasite, and undergoes interesting changes before it appears as a beetle, the natne of which I cannot give, for, although I have often taken them, my knowledge of these larva is too scanty for a determination of the species. The larvz, as’stated, attach themselves about the thorax of the bee, and so numerous were they upon this occasion that they seriously embarrassed the flight of their unwilling hosts. Numerous bees could be seen dropping upon the foliage and endeavoring to comb off with their legs the undesired swarm, but in vain, so tightly did the intruders cling. Above and below they clustered, at the base of the wings and among the legs, clinging to the hairs of the bee or to one another. My estimate of the number carried by each individual of Halrcrus discus was betweeen 40 and 50, and to verify this I collected four individuals not more conspicuously burdened than their neighbors. One of these I have pinned in my collection with the swarm upon it, and the remaining three were found to carry 165 larvee, or an average of 55 for each bee. When we take into account _ the hundreds, indeed I may say thousands, of these bees which were similarly infested, we will get some idea of the immense number of the larvee which had developed in the limited area examined. W.. HSH. 92 Tur Orrawa NATURALIST. ErebiA Discoipavis, Kirby.—Some years ago a few specimens of this very 1are arctic butterfly were taken at Sudbury, Ont., by Mr. J. D. Evans, on 12th May. Ever since that time the leaders of the Entomological branch have made great efforts to obtain egys of this species so as to breed the lar, through their different stages, to record the life history,and to describe the appearance of the young caterpillars. Although known to occur in comparative abundance at Calgary, N. W. T., no one could succeed in getting the eggs until this season, when Mr. T..N. Willing, the Provincial Secretary of the Botanical Society of Canada for the Northwest Territories, and one of our members, succeeded in obtaining eggs which he sent to Ottawa. The eggs were laid on May 10th and hatched on the 29th. The small caterpillars fed readily on lawn grass, Poa pratensis, and several kinds of fine leaved sedges, Carices, and are now growing rapidly; the first moult was passed on June 7th and the second onthe 18th. The young larvze were 2%4 millemeters in length when first hatched, 5 mm. after first moult and g mm. after 2nd moult. The general appearance of these little caterpillars may be thus described: Slender caterpillars, whitish in colour, with a dark brown stripe down the middle of the back and three lateral stripes along each side. “The uppermost of these is broken up into separate elongated blotches, and the lowest has on its lower margin: the small black spiracles. Below these is a wide, yellowish white,” conspicuous stripe ; the lower surface is mottled thickly with reddish brown, and bears a narrow white stripe along the sides, lying just above the bases of the legs. After the first moult the colour is darker and the skin has many more bristles than in the first stage; after the second moult the body is so much darker that the general colour would be described as brown. fk Ornithology.—A New Birp ror EasTERN OntTario.—Mr, F. A. Saunders reports the appearance of a Dickcissel, Sp7sa americana, ’ at the Central Experimental Farm. Previous to this, the only record of this species for Canada was made at the most southerly point of the Dominion,— Pomnt Pelee, Lake Erie. The presence of so distinguished a Southerner in Ottawa being Nores, Reviews AND ComMMENTs. 93 worthy of a mark of special attention from the local students of bird _ life, visits to the farm were made, on Mr. Saunders invitation, by Mr. Ww. A. D lees and the writer, both of whom obtained very satistactory ‘interviews at close quarters. The bird is a male in fine plumage ; the . sulphur-yellow breast, black throat patch and white chin are well marked, as well as the ashy tracts on the sides of the head. Mr. Saunders has _ seen it daily since 15th June, always haunting the same locality on the farm, an area of not more than three acres, and singing almost all day long. He has not been able, so far, to find either mate or nest, though once or twice a bird has been seen which he hoped might prove to be the female dickcissel, but which would not permit him to come near _ enough for identification. In the hope that they may be nesting it has been thought best not to E collect ” the male bird. They will be protected on the Experimental Farm, and possibly may return another year. Since the above observation was made Mr. W. E. Saunders of London, Ont., who was the first to discover the dickcissel at Point Pelee in 1884, writes that he has seen several of the species this season _ in the County of Middlesex. ; A’ GE: The Air at Ottawa.—Mr. F. T. Shutt, F.I-C., President of the O.F.N.Club and Mr. Anthony McGill have sent the Orrawa NATURALIST a copy of their recent paper entitled : ‘‘ Some Observations __ on the quality of air at Ottawa.’* In this paper the authors give some _ of the results obtained by them in the work they undertook at the instance of the Department of Public Works to examine the air of the House of Commons Chamber at Ottawa. The methods employed are described, and the results appear in the form of estimations of the carbonic acid present in the air on Parliament Hill. The authors say :—‘‘ It will be seen that the quantity (of carbonic acid) varied from 370682 volumes per 10,000 on the rith June to 3°7177 per 10,000 on 13th June.” The experiments were made in 1892 and the presence of CO, was estimated by Pettenkofer’s Process. The mean amount of carbonic acid gis (omitting the first estimation made) is 3°5918 volumes p2r 12,022 Compared with results obtained in other cities the quality _ of the air on Parliament Hill is excellent.—H.M.A. *Trans. Royal Society of Canada, Vol. XII, Sec. HI, 1894. 94 Tue Orrawa NATURALIST. EXCURSIONS. Excursion No. 2, Galetta.—Weather of the bright, exhilarat- ing order; a large gathering of enthusiastic naturalists, and a region rich in scenery and varied in the natural products, all combined to make the excursion to Galetta on the 15th of June one of the most enjoyable in the history of the Club’s outings. About 140 excursionists gathered at Elgin street station at 1.45 in the afternoon, from whence they were taken by the Parry Sound _rail- way to Galetta, some 35 miles distant. The train slowed up at McDougall’s and Graham’s Crossings, where the numbers were swelled by the addition of parties from the Experimental Farm and Richmond Road. The railway passes through some of the finest agricultural districts of Carleton County, now ‘in verdure clad” with the green of the meadows and grain fields. The village of Galetta is reached in an hour. Here the party is met and cordially welcomed by Mr. G. C. Whyte, a brother of the well- known enthusiast in botany, Mr. R. B. Whyte, at whose recommenda- tion the locality at Galetta was chosen. The town hall was kindly placed at our disposal, and was used as a storing recom for wraps and lunch baskets. The next move was to collect forces, designate leaders for the various branches, and begin the serious business of the afternoon. It was at this time that the unavoidable absence of such well appreciated and willing leaders as Mr. Fletcher, Drs, Ami and Ells, was felt and deeply regretted. President Shutt then explained the geography of the district and asked Messrs. Whyte and Craig to lead in the search for botanical specimens ; while Prof. Prince, Messrs. Halkett, Whiteaves and Ferrier represented the zoological and geological sections. The principal exploring grounds lay along the banks of the Missis- sippi, a tributary of the Ottawa, and in the vicinity of Chats Lake. It may be interesting to note here that Galetta is situated on a spurt of the same Laurentian formation which crosses the Ottawa River at the Chats Falls. This ridge of gneiss crops out prominently at EXCURSIONS. 95 : Galetta and adds much to the variety and beauty of the scenery by causing a series of interesting falls at the point of intersection by the Mississippi. ‘The power furnished by these falls is utilized to operate grist and woolen mills in the village; the long lines of comfortable looking frieze displayed upon the stretchers testified to activity in business. It may hardly be taken for granted that all the excursionists were true field naturalists, and therefore came solely to pry into nature’s secrets. From the happy uppearance of many interesting groups of from two to a dozen persons who were not communing with nature it is safe to say that secrets of another order were made, interchanged and investigated during the afternoon. However that may be, it was a _ well satisfied party which gathered at six o’clock at the call of the President in Whyte’s beautiful grove ‘neath “the murmuring pines and the hemlocks ”—in fact to hear an account of the different “finds” by the leaders of the different sections. It was much to be regretted that Geology and Entomology were not represented owing to absence or modesty on the part of the - leaders. Prof. Prince, Dominion Commissioner of Fisheries, spoke interest- ingly regarding some specimens which he had succeeded in capturing. In the Botanical section an interesting collection was exhibited by Messrs. Whyte and Craig. Among the specimens collected were good representations of the Wild Orange Red Lily, Z. P/iladelphicum, which Mr Whyte recom- mended for garden cultivation, and the Carolina or thornless rose, R. Carelina. Flowering branches of Poentilla fruticosa, shrubby five finger, were also shown and described by Mr. Whyte as a most desirable shrub and one whose beauty was enhanced by cultivation. This region seemed to be particularly rich in climbing plants. as Mr. Craig extolled the merits of four useful and ornamental species, mentioning Virginia creeper, Amfelopsis guinguefolia ; Climbing Bitter Sweet, Celastrus scandens ; Moonseed, Menispermum Canadense ; and - Climbing Bindweed, Polygonum alinode. Several honeysuckles were shown in fruit and in flower, the most beautiful at that time being 96 Tue Orrawa NaturRALIST. the Hairy honeysuckle Z. A/rsufa, Eaton. ‘This was covered with its charming orange yellow colored flowers, making it most attractive. Others exhibited were the native Wolf Willow, E/eagnus, of the North- west in fruit,and Saskatoon, Ame/anchier, in addition to representations of our best conifers. . President Shutt added some interesting remarks on the role of the veguminosae in agriculture, and congratulated the club on its success- ful outing. Mr. Sinclair, B.A., of the Normal School also spoke felicitously of the benefit of such excursions. A number of members of the Ottawa Camera Club who were of the party succeeded in getting several interesting views of the Mississippi Falls. The 8.30 train brought to Ottawa a cheerful and thoroughly satisfied party of excursionists, each with a strong desire to say “Rah !” for Galetta. 5 Rat July and August Excursions.—Owing to the absence from town of a number of the officers and members of the O. F. N. Club, it has been decided not to hold any field day during July. It is probable that the August NATURALIST will contain an announce- ment of one, to take place about the middle of that month. THE LATE PROFESSOR HUXLEY. British Science has lost one of its foremost leadérs by the death of Professor Huxley. He was recognized the world over as the greatest of modern biologists and he was not only a profound original discoverer he was also one of the best popular expounders of science. His con- tributions to science were of a voluminous and varied character, and in the field of Comparative Anatomy his work was especially brilliant and successful. As a lecturer he had but one rival, viz. : the late Professor Tyndall, and the interesting circumstance may be recalled at this time, that both these scientists were, in the course of their career, candidates for Professorships in one of our Canadian Universities (Toronto). British Science may look with just pride upon the achievements of the laté Professor Huxley.—E. E. P. SEE STAT RR THE OTTAWA. NATURALIST. Vou. 1X. OTTAWA, AUGUST, 189s. No. 5. *ARGON: A NEWLY DISCOVERED CONSTITUENT OF THE ATMOSPHERE. By BRANK T. SHUTT, M.A., F1.C., F.CS. Our first knowledge regarding the chemical constitution of the atmosphere may be said to date from Priestley’s time. In 1774 this English chemist discovered Oxygen by the experiment, now historical, of heating the red oxide of mercury by means ot the sun’s rays, collect- ed and focussed by a burning glass. He worked out somewhat its chemical properties and made known its essential characteristic as the great supporter of animal life and of combustion. He termed it * Dephlogisticated air,” because, as he said, “it is so pure, so free from phlogiston,”—the hypothetical principal of inflammability of an obsolete theory. Two years previously, Rutherford, Professor of Botany in Edin- burgh, had experimented with the residual gas produced by respiration of animals in closed vessels containing air. He found it to contain a gas (carbonic acid) that could be absorbed by caustic potash and further a colourless gas, which could not thus be absorbed, that extinguished the flame of a candle and did not support animal life. This was the discovery of phlogisticated air or Nitrogen. Scheele, a Sweedish chemist, was, perhaps, the first to recognize clearly that the atmosphere consisted of these two gases. He confirmed the results of Priestley and Rutherford, bringing them together and establishing from them the dual character of the atmosphere. So far, however, all the work was of a qualitative character. Cavendish, another English chemist (1731-1810), was the one who established by careful, thorough and skilful quanitative work the com- *Read before the Toronto University Club of Ottawa, May roth, 1895. 98 Tue Orrawa NATURALIST. position by weight and by volume of the atmosphere, This was in 178r. It is supposed that Cavendish made no less than 400 analyses of the air. The mean result of his labours was that roo volumes of air contain 20.83 parts by volume of oxygen. Since that time Gay-Lussac and Humbolt, Davy, Thomson, Kuppfer and, later by more accurate methods, Regnault, Bunsen, Lewy, Stas, Dumas, Boussingault and others, have carefully analysed theair. Their results serve practically to corroborate those of Cavendish. ‘It is now well known that the amount of oxygen in normal air varies at different times and in different localities, but the work of all the most careful investigators goes to show that the limit of variation lies within 20.9 and 21.0 volumes of oxygen per too of air. Consider_ ing this, we may well marvel at the high degree of accuracy of this quantitative work of Cavendish—more especially when we think of the apparatus and methods of his day. For: more than a hundred years then, it has been thought that the atmosphere consisted chiefly of a mixture of the elementary gases, oxygen and nitrogen. We have also for many years recognized as present in the aerial ocean that envelopes our globe, small and variable quantities of carbonic acid [3 to 4 volumes per 10,000] and vapour of water. Under artificial circumstances, traces of sulphuretted hydrogen, ammonia, nitric and other acids, organic matter, etc., are noticed. We now have to chronicle a further step in our knowledge of the atmosphere’s composition. Lord Rayleigh, the eminent English physicist, and William Ram- say, professor of chemistry at University College, London, at the meet_ ing of the British Association held in Oxford in August last, surprised the world—scientific and lay—by the announcement that they had discovered another atmospheric constituent. - To give you some idea how these scientists came to make the discovery of this constituent—which the weight of the proof indicates to be an. element hitherto unknown—I shall make free use of an abstract of a paper read by them before the Royal Society on the 31st of January of the present year. Priestley had discovered oxygen by chance ; the present discovery was the result of an elaborate ARGON. 99 and careful series of experiments—extending over a period of several years—conducted and repeated on thoroughly scientific lines, by means of physical and chemical methods, the outcome of the combined labours and knowledge of physicists and chemists of the age, which I think we may safely say is the most brilliant, and withal the most accurate that science has ever known. Lord Rayleigh had previously proved that nitrogen extracted from chemical compounds was about one-haif per cent. lighter than ‘‘ atmos- pheric nitrogen.” Thus, the [mean] result for the weights of nitrogen gas in the globe, prepared from the tollowing compounds :-—Nitric oxide, nitrous oxide, ammonia nitrite, urea was 2.2990, while that for ‘‘atmos- pheric nitrogen” prepared and purified by the best hitherto known methods was 2.3102. Reduced to standard conditions, their figures “give 1 2595 grms of ‘‘chemical” nitrogen and 1.2572 grms of ‘“atmos- pheric” nitrogen per litre. This difference, though small, was quite sufficient to arouse in the mind of Lord Rayleigh the suspicion that ? ‘‘atmospheric nitrogen ” was not pure nitrogen. We may very briefly at this stage consider the details of one method for the preparation of nitrogen, used in these investigations of Lord Rayleigh and Prof. Ramsay: By the ignition of the metal magnesium in nitrogen, a compound of the two is formed, (magnesium nitride) which on subsequent treatment with water yields ammonia ; from tbe latter by many methods the combined nitrogen may be determined. As magnesium nitride, nitrogen was extracted from the air, then liberated with water and carefully estimated. The result obtained proved that, prepared in this way, nitrogen—which in the first stages of the method of preparation was part of the atmosphere—was practically identical in physical constants with nitrogen from chemical compounds. It was, therefore, conjectured that nitrogen separated from the atmosphere by all the methods save the one just quoted, was not pure nitrogen. What then was its impurity? In other words, is there not another gaseous constituent in the atmosphere unknown ? We have now stated briefly the grounds for suspecting a hitherto undiscovered constituent in the air. In a review of this character tt is 100 Tue Orrawa NaTurRALIs?. impossible to give an account of all the experiments these scientists made in order to make sure that the discrepancy in weight already referred to was not due to impurities. Suffice it to say that all possibility of the ritrogen prepared from chemical compounds being a mixture, was shown by varied and careful experiments to be without any foundation. METHODS OF PREPARATION. Of the elements that combine directly with nitrogen, magnesium was chosenas the best. When nitrogen is passed over this metal in a hard glass tube heated to redness, absorption takes place with incandescence. The authors state that from 7 to 8 litres of nitrogen can be absorbed in a single tube. The nitride so formed is a porous, dirty orange coloured substance. Red hot magnesium therefore was used to absorb or get rid of the nitrogen, while red hot copper was similarly used to combine with the oxygen of the air experimented upon. The method of Cavendish, by “ sparking ” nitrogen with oxygen in the presence of an alkaline liquid, was employed by the authors in their earlier experiments. This finally resulted in obtaining a small quantity of residual gas, proportional to the volume of air operated upon, which could not be further oxidised. Its spectrum proved that it was not nitrogen. It was, in fact, the newly discovered element, argon. The abstract then gives the details of an experiment in which the oxygen of the air under trial was absorbed by red copper. This left a gas of the density of 14.88. This, as the investigators say, while not con- clusive, was encouraging. Then by passing backwards and forwards such ‘atmospheric nitrogen” over red hot magnesium they obtained after 10 days about 1500 c.c. of this heavier gas. This was treated with a large num- ber of chemical absorbents to purify it, and as a result they had 200 c.c. of a gas of the density of 16.1. Still further absorption yielded a gas with a density of 19.09. This on “ sparking ” with oxygen eliminated the last traces of nitrogen, the remaining gas having 20.0 as its density. This showed, by spectrum analysis, lines not reconcilable with any known element. The method of atmolysis was then tried. Atmospheric nitrogen, after separation of oxygen by red hot copper, was diffused through a number of tobacco pipe stems, The nitrogen so obtained was denser | ARGON. 101 than that of atmospheric nitrogen not so treated. This served to corroborate their previous results and conjectures. ~The preparation of argon on a large scale is a tedious process. It involves first the separation of the oxygen by red hot copper and the drying by chemicals of the remaining gas. It is then passed several times over magnesium turnings heated to bright redness. For this purpose mercury gas holders and a Sprengel vacuum pump are used. It takes at least two days to effect perfect elimination of the last traces of nitrogen. ; The density of this gas-—argon—as calculated trom a mixture with oxygen, is 19.7, and on the assumption of its proportional amount in atmospheric nitrogen 20.6. As prepared from Nitride of magnesium, the average density from a number of determinatiens in 19.90. This _ gas gave no spectrum of nitrogen in the vacuum tube. It would avail little for me to give here a minute account of the characteristic lines of the spectrum of argon. Mr. Crookes, whose assistance as an authority on spectrum analysis was asked, has made a careful record of the wave-lengths. Part of the evidence from this work would seem to indicate that argon isa mixture and not an element, Since two distinct spectra at different temperatures were noticed. We however, know that the spectrum of certain elements is apt to vary with the temperature and pressure under which the experiment is made. Mr. Crookes concludes ‘‘that Lord Rayleigh and Prof. Ramsay have added one, if not two, to the family of elementary bodies ” Argon is about two and a half times as soluble in water as nitrogen, It has been proved that dissolved gases from rain water furnish “ nitrogen ” considerably heavier than true pure nitrogen. ‘This greater solubility of argon has already suggested a method for its preparation. To Professor Olszewski, of Cracow, was first assigned the task of determining argon’s physical constants. His results are that it has a lower critical point and a lower boiling point than oxygen. He has liquefied it and, further, solidified it to white crystals. At ordinary tem- perature it is acolourless, odourless gas. The ratio of its specific heat, the result of a number of experiments, calculated from the velocity of sound in it, is 1.66. That for diatomic gases varies from 1.29 to 1.42. From the fact now recorded it appears to be 102 THE OTTAwa NATURALIST. a gas in which all the energy Is translational ; in other words, its molecule consists of one atom, and in this respect resembles mercury gas at a high temperature. All attempts—and they have been many—to combine argon with other elements have failed. Conditions have been altered, but with the same result. It, therefore, well deserves the name given it, which is derived from the Greek and means inert. So far, its inertness is without a parallel in chemical science. I ought to mention that within the last month, M. Berthelot has announced that he has by means of the silent electric discharge got argon to combine with several organic bodies. Details of these results are promised at an early date. Avogadro’s hypothesis demands that the density of a gas should be half its molecular weight. The density of argon is 20 [approximately], its molecular we'ght must therefore be 40. The physical data go to show that it is monatomic, z.e. the atom and tae molecule are identical, hence its atomic weight, if it be an element, is 40. The definite physi- cal constants obtained by Olszewski certainly go to prove its elementary nature. Finally, is there a place for a new element of such atomic weight in Mendeleef’s periodic system? It does not appear so. The question, therefore, arises, whether the periodic classification of the elements that of late years has received no such attention from chemists, is altogether a complete and accurate one. May there not be elements that do not find a place there? Further work will no doubt throw light on this important matter. Argon has been sought for in mineral and vegetable matter, but so far in vain. ‘lhe atmosphere, of which it constitutes about one one hundred and twenty fifth part by volume, appears to be its only habitat. It is altogether too early to ask regarding the commercial or utilitarian value of this discovery. I have no doubt that ere long we shall know of the part— perhaps a very important part—that it plays in the economy of nature and probably in the arts and manufactures of the day. This discovery undoubtedly marks the highest achievement in the chemistry of the times, but it must not be forgotten that a very large part of the work was plotted and successfully carried out by one who occupies a first place among the advanced physicists of the day. A Moryixa Amona Moose. 103. A MORNING AMONG MOOSE. By Pror. Epwarp E. PRINCE, Dominion Commissioner of Fisheries, Ottawa. Some months ago, when on an official tour in New Brunswick, a very unusual opportunity offered itself of seeing a smal! herd of Moo-e under conditions resembling in many respects those characteristic of the wild state. Everybody is familiar with the magnificent head of our largest “native mammal, and the imposing palmate horns are a common orna- ment about our houses and hotels ; but there are comparatively few people who have ever beheld a living moose, and fewer still who have seen this noble animal in his native haunts. It was with no ordinary pleasure that, quite unexpectedly, I found myself one morning with a few hours at liberty, and was thus enabled in company with a friend, to take a drive of four or five miles with the view of seeing the moose. We reached the small tract of forest country where, we had been in- formed, the moose were located, and having found the owner, he most willingly volunteered to show us his splendid captives. The personage . : _ 4 K 9 ; in question was a quaint character—a veritable Robinson Crusoe in appearance and habits of life. From his log hut he led us along a tangled forest path, through an extensive wooded area covering some hundreds of acres securely fenced in. We soon saw signs of moose. All the young shoots of certain trees had been nibbled off, or rather had been sharply nipped off, as if by a sharp, clean bite. In some places hardly a young leaf or terminal bud could be seen. ‘lhe moose, as is well known, prefers above all things the young green tender sprigs on the branches of certain trees. We also noticed on the path at several points dung traces, quite unlike those of the cow, horse or sheep, being in fact olive brown ovoid bodies, not unlike nut megs in shape and size. ‘The trees now became thicker and the foliage more dense, and our guide warned us to walk more slowly and carefully, and to avoid treading on dead dry branches Though partly domesticated the moose, we were informed, never wholly 104 THE Orrawa NATURALIST. loses the fear produced by unexpected sounds, and moves off in alarm on hearing the cracking of dry branches in the distance, or other warning noises. We were further warned that if we suddenly came upon one of the huge “pets” of which we were in quest, it was advisable to dodge immediately behind a tree. ‘‘ Always keep a tree between you ? and the moose,” said our guide, for the instinctive habit of suddenly striking out with his ponderous fore-foot is never got rid of. So power- ful is the stroke of the sharp cloven hoof that, hke the slash of a sabre, its effect is almost always fatal, as many a hunter has found to his cost. As we advanced slowly and noiselessly our guide called in a soothing tone, “ Coom,” ‘“‘Coom,” ‘ Coom,” just as a dairy maid calls her favourite — calf, and ere long signalled to us to stop. Then our guide putting up his hand pointed to a small clear space in the midst of large trees. Lo! under the leafy roof we could just distinguish two large brown masses on the ground. ‘There were a couple of moose demurely chewing the cud in this shady retreat! The colour of the hide, a dark chocolate, so perfectly harmonized with the shadows and tree trunks around, that the outlines of the two animals could be discerned only with difficulty. Both had their heads turned away from us, and the back alone was visible, much of the body being hidden by the intervening undergrowth. The explanation of the peculiar position in which moose rest during the day is easy. The back is always turned towards the direction whence the wind blows. As the wind changes the moose change their — position. On this occasion the wind was from the north, and we were moving south, so that a very slight wind blew towards them from us. The moose is endowed with a sense of smeli so acute, that anything approaching from the windward side is at once detected by them with- out the aid of eyes or ears. The head being turned in the opposite direction, the eyes and ears are thus able to detect any approaching danger from that quarter. Such is the universal habit of the moose. He detects danger by scent in one direction, by sight and sound in the other direction. With his back turned towards the wind the moose is able to detect danger from whatever quarter it comes. ‘This was soon demonstrated, for, as we came nearer, one of them rose quickly and turned round in our direction, eyeing us sullenly. He was a magnifi- 44 A Morning AMONG Moose. 105 cent animal with widespreading antlers and a height at the shoulders of at least seven feet. His stout limbs of a pale ochre colour, like the trunks of young trees, his sides deep brown, like faded foliage in shadow, his head and back much paler and glistening as if frosted, resembling a mass of leaves with the light glancing across them. We | were able to view at eight or ten yards distance this kingly quadruped, | always remembering the precaution to keep within reach of a stout cedar or beech. There was no difficulty in noting the peculiar features of the living moose soutterly unlike the crude and unshapely stuffed skins which we usually see. The short deep body, the monstrous towering shoulders surmounted by a bushy erect mane, the thick abbreviated neck, the long and ponderous head, and, above all, the gracefully curved snout, with pendulous upper lip, almost as mobile as the elephant’s trunk, all combined to give a peculiar weird grandeur to the animal. Itis impossible in a museum specimen to produce certain graceful features in this uncouth giant. Thus the soft roundness ot the ears ts always lost, and the elegant curve of the slit-like nostrils it is impossible to preserve after death. The strange, somewhat “ lack- lustre ” eye, to adopt Shakespeare’s expression, is ludicrously small tor so large a creature. It is, it must be admitted, a wicked eye, very un- like the large liquid eye in most of the deer tribe, nor has it the benignant intelligence of that organ which we see in the elephant, or the inoffensive inquiring look of the whale’s eye, as viewed at half a dozen yards’ distance from a fishing boat: but it resembles rather the suspicious ill-natured eye of the bull or the rhinoceros. The eye in fact is dull, dark, and with hardly any indication of white. From the throat of the bull hung the elegant tail-like “ bell,” a bushy appendage, which reaches its full development only when the creature is adult. The huge trumpet-like ears are extremely bushy, similar to the condi- tion of the brown bear, and as mobile and rapid in movement as the ears of a horse. The living moose combines many of the general features of the horse, the deer, and the pig. Indeed the young calf-moose is strik- ingly pig-like in appearance, on account of the long snout, the large pointed ears, small eyes and sloping back. 106 THe Orrawa NATURALIST. Our guide assured us that he had captured, when practically full grown, the splendid bull-moose which we had the privilege of seeing, and had brought it from the wild Quebec country, north of the Lower St. Lawrence to New Brunswick on a rudely constructed raft—a mai- vellous instance of a hunter’s skill, perseverence and success. Taking a stout maple branch in his right hand he walked up to his colossal pets, holding out a piece of turnip as a dainty bribe, and uttering his cry “Coom,” ‘‘Coom.” The cow moose rose and readily took the piece offered, but the bull was more reserved and only after much persuasion condescended to accept a fragment of the turnip, leisurely stretching out his head and seizing the piece with his elastic lips after the manner of a horse. Our guide patted the creature familiarly, and seemed to take no such precautions as would be necessary for a stranger to take. It is true he was cautious in approaching the bull at first: but the animal was clearly semi-domesticated. When the cow rose, the absence of horns and of the bell, and the meagre character of the upright mane took away from her appearance. Her size too is rather smaller, and the ears appear, if anything, larger and more prominent: but the absence of horns may account for that. She lacks the impressive giandeur of the bull. Soon a small calfmoose, about as large asa 12-hands pony, appeared in response to repeated calls. It was about a year old and appeared quite tame, pushing its huge nose under the armpits of its master, and exhibiting signs of affection. The lips are far less pendulous and mobile in the calf. A further walk of a quarter of a mile enabled us te see another cow, whose ears were crumpled and shorn at the tip. This animal when newly captured, and tied about the neck, head and ears with ropes, had been frost-bitten, and had lost the tips of the last-named organs. Finally a fifth moose was seen, a calf born in captivity, and so tame as to Jump over a fence at the command of its master. It was a surprise to see a heavy, uncouth, almost unwieldy, animal such as this, take a fence four or five feet high with greater lightness and ease than a hunter Our guide not being pleased with his juvenile pet’s performance, administered one or two blows with his cudgel, whereupon the creature cried in a sharp, ill-natured manner, A MorninG Amone Moose. 107 not unlike the cry of a horse in pain or anger, but less loud and strong. such large dimensions. _ This feeble, ill-natured cry resembled strongly the weak cry of the monstrous rhinocerous, the voice of which is so ill- proportioned to the animal’s size. It was interesting to note that our departure was watched with the utmost keenness and suspicion by the moose. They followed us with ears and eyes, turning round when necessary to observe our movements as we hurried away. It was an impressive spectacle to see in the dis- tance the two massive captives standing in their leafy retreat, the pale grey horns of the bull rising majestically amongst the branches. Cases of tame moose are familiar enough in Canada: but it is a rare experience, except to the hunter, to see a herd of moose under conditions so resembling the wild state. One gained some notion of _ their appearance in the forest. One sad reflection only could not be avoided, arising from the probability that in spite of laudable steps to preserve these noble monarchs of our Caradian forests, the cruelty ard barbarity of man is almost certain ere long to exterminate them. Not merely pot-hunters, who slay the helpless mother-moose just before and after bearing her young, but professed spoftsmen, have no mercy. Their relentless efforts may ere long deprive our Dominion of the moose in our forests as they have already robbed us of the royal buffalo on our prairies, unless severe and righteous measures be effec- tively carried out. 108 ‘ THe Orrawa NATURALIST. LIST OF NATIVE TREES AND SHRUBS GROWING AT THE CENTRAL EXPERIMENTAL FARM, OTTAWA, JULY, 1895. By W. T. Macoun. Interesting and numerous as are the species and varieties of trees and shrubs from foreign countries now growing at the Central Experi- mental Farm, which by their beauty and peculiarities of form, leaf, flower and fruit attract so much attention from visitors, it must be a satisfaction to Canadians to know that a large number of our native trees and shrubs play no small part in the pleasing effect produced by the tasteful grouping of the various species and varieties on the orna™ mental grounds. In the arboretum many of our native trees and shrubs may now be studied with much profit-by those interested in botany and while more species are yet to be added, the local botanist will see at the Farm many that are not to be found in the Ottawa district. It was thought that a list of the native trees and shrubs growing at the Central Experimental Farm, in cultivation or otherwise, would prove of some value to the members of the Ottawa Field Naturalists’ Club, and the accompanying list is herewith subinitted. The classification is according to Prof. Macoun’s ‘ Catalogue ot Canzd'an Plants.” The distribution of each species is given ; whether it is a tree or shrub; its hardiness at Ottawa; and when ornamental mention is made of the fact. A few woody climbers are also included. There will be found in the list the names of 178 species and varieties. I. RANUNCULACE4 —Crowfoot Family. t. CLEMATIS, Linn. (Virgin’s Bower.) . (1.) C. VERTICILLARIS, DC. Whorl-leaved Clematis. Wnre:; Cnt. 5’ Manis si) Veta ees Woody climber ; hardy; flowers ornamental. (2.) C. VirGintana, Linn. Virginian Clematis. W.o.; N.S.) Ones Ontey inn. Woody climber, hardy ; flowers ornamental. List oF Native Trees, Erc. 109 (3.) C. LicusticiFoLia, Nutt. aren 52 .C, Woody climber; hardy; flowers ornamental. Il. MAGNOLIACEA— Magnolia Family. 17, LIRIODENDRON, Linn. (Tulip Tree ) - = (78). *L. Tuviptrera, Linn. Whitewood. Western Ontario. Large tree ; semi-hardy ; leaves and flowers ornamental. " 18. MAGNOLIA, Linn. (Magnolia.) 479.) M. acuminata, Linn. Cucumber Tree. Western Ontario. Large tree ; semi-hardy; leaves and flowers ornamental. IV. MENISPERMACEA:— Moonseed Family. 20. MENISPERMUM, Linn. (Moonseed.) (81). M. Canapense, Linn. Canadian Moonseed. Que. ; Ont. ; Man. Woody climber ; hardy. V. BERBERIDACEZ ~ Barberry Family. 21. BERBERIS, Linn. (Barberry.) (84). B. Aguirotium, Pursh. Oregon Grape. B.C. Low shrub ; semi-hardy. XIX. HYPERICACEA —St. John’s Wort Family. _ 97. HYPERICUM, Linn. (St. John’s Wort.) (344). H. Karmianum, Linn. Shrubby St. John’s Wort. Ontario. Low shrub; hardy ; flowers ornamental. XXI. TILIACEA —Linden Family. 105. TILIA, Linn. (Basswood. Linden.) (366). T. Americana, Linn. Basswood. Que. ; Ont.; Man. Large tree ; hardy. 110 Tue Orrawa NATURALIST. XXIV. RUTACEA:—Rue Family. - 112, XANTHOXYLUM, Colden. (Prickly Ash.) (392.) X. AMERICANUM, Mill. Northern Prickly Ash. Que. ; Ont. Tall shrub; hardy. 113. PLELEA, Linn... (Hop Tree:) (393-) P. TRiroviata, Linn. Shrabby T'refoil. _ Western Ontario. Tall shrub; hardy. XXV. ILICINE4~— Holly Family. 115. ILEX,-Linn;. (Holly:) (395-) I. VERTICILLATA, Gray. NS: > Ques One. Shrub ; hardy; fruit ornamental. XXXVI. CELASTRACEA —Staff-tree Family. 117..CELASTRUS, Linn. (Stafftree.) (379). C. SCANDENS, Linn. Wax-work. Bitter-sweet. Climbing shrub; hardy; fruit ornamental. 118. EUONYMUS, Tourn. (Spindle-Tree.) (399.) E. ATROPURPUREUS, Jacq. Burning Bush. - Ontario. Tall Shrub; hardy ; fruit ornamental. XXVII. RHAMNACEZ:. Buckthorn Family. 120. CEANOTHUS, Linn. (New Jersey Tea.) (401.) C. AMERICANUS, Linn. Ontario. Low shrub; hardy. 121. RHAMNUS, Tourn. (Buckthorn.) (405.) R. ALNIFOLIA, L’Her. -N.B.;. Ous. ; OnteS Manly ws 1. Low shrub ; hardy. List or Native Trees, Erc. 11] XXVIII. VITACEA—Vine Family. 122. VITIS, Tourn. (Grape.) _ (408) V. Lasrusca, Linn. Northern Fox Grape. Western Ontario. Climbing shrub; hardy. (499.) V. corpiFOLIA, Lam. Frost Grape. NS:; > Que.; Ont.; Man. Climbing shrub ; hardy. 123. AMPELOPSIS, Michx. (Virginian Creeper.) (411.) A. QUINQUEFOLIA, Michx. Que. ; Ont.; Man. Climbing shrub; hardy ; leaves ornamental. XXIX. SAPINDACEA®—Soapberry Family. 124. STAPHYLEA, Linn. (Bladder Nut.) (412.) S. rRiFoLIA, Linn. Amewican Bladder Nut. Que. ; Ont. Tall shrub ; hardy. 125. ACER, Tourn. (Maple.) (414.) A. PENNSYLVANICUM, Linn. Striped Maple. Pes Ns QOue.; Ont. Small tree ;_ hardy. (415.) A. spicatuM, Lam. Mountain Maple. Moo poem 5 Oue.; Ont; Man. Tall shrub ; hardy. (417.) A. CIRCINATUM, Pursh. ‘Vine Maple. BC. Tall shrub or small tree ; semi-hardy. (418.) A. GLABRUM, Torrey. B.C. Tall shrub ; hardy. (419.) A. SACCHARUM, Wang. Sugar Maple. N.S.; N.B.; Que. ; Ont. Large tree; hardy; leaves ornamental in Autumn. 112 ; THe Orrawa NATURALIST. NOTES, REVIEWS AND COMMENTS. *CHAPMAN’S HANDBOOK OF BIRDS OF EASTERN NORTH AMERICA. If supply may be taken as an index of demand, the large number of books upon ornithology which have appeared within the last few years furnishes an encouraging proof of a growing desire for closer acquaintance with bird life, both on the part of the nature-lover and of the scientific student. Probably no book that has appeared for a long period is so well fitted to satisfy the needs of both these classes as the one whose title has just been quoted. Accuracy and fullness of des- cription, covering all external characters, including every phase of of seasonal and sexual plumage in each species, have been attained without an undue use of technical language ; and these specific descrip- tions alternate throughout the body of the work with delightful sketches of the habits of each bird. Many of the life-histories are from such well known writers as Mrs. Olive Thorne Miller, Miss Florence Mer- riam, William Brewster, Ernest E. Thompson, Bradford Torrey, etc. The author is by profession a closet naturalist, but his chapter on “ The Study of Birds out of Doors ” can only have been written by one who is a lover, as well as a student, of birds, and whose acquaintance with them must have begun at a period when professional méthods and closet work were as yet matters of the future. Still the curator of the museum comes to the surface in the following recommendation: “If you would name birds without a gun, by all means first visit a museum and with text-book in hand study those species which you have previouly found [by reference to the nearest local list] are to be looked for near your home. This preliminary introduction will serve to ripen your acquaintance in the field.” One field student can remember how a preliminary acquaintance with a row of mounted birds standing “at attention” on the shelf of a museum has only served to deaden the * Handbook of Birds of Eastern North America—with Keys to the Species and Descriptions of their Plumages, Nests and Eggs, their Distribution and Migrations, &c. &c. &c. By Frank M. Chapman, Assistant Curator of the Department of Mammalogy and Ornithology in the American Museun. of Natural History, New York City, &e. New York: D. Appleton & Company, 1895. 12 me., xiv. + 421 pp. 7. . Nores, Reviews ANpD ComMMENTs. 113 interest that would otherwise have been felt in their living relatives. n the otherhand, an illusive song, a few unsatisfying glimpses through the leaves or over the distant tree-tops can awaken a keenness of hunt- ‘ing instinct that, following its object through thicket and marsh and stumbling over two or three false identifications, will end in a knowledge, born of deep friendship between tan and bird, that can be come at in ‘no other way. Sucha plan may be too slow for this end of the century, but its results have a_ staying-power about them. Afterwards when inspecting the museum specimens, the student will know what points he should study most carefully ; and whenever ‘that song is heard again the leaves grow greener and the air fresher and other things come back to mind that to miss would be loss indeed. Among the most valuable features in the book are the Keys. They ‘are not, as is too often the case with natural history keys, so extremely analytic and complicated that the student can only establish the iden- tity of the specimen at the risk of losing his own. ‘I here 1s a short ‘systematic Key to the Orders and Families, and under each family a Key to the Species. In the latter all systematic arrangement, in the scientific sense, is abandoned. The author’s motto is: If the Keys will identify they will have accomplished their purpose. For example, the Finch family is divided into three groups : I. Under parts with red. II. Under parts with no red and without distinct streaks. II1. Under parts without red and with numerous streaks. Each of these groups is again divided by other prominent color markings, until at the third sub-division the several species are reached . This plan wi!l be found an excellent one for field identification, and by checking results with the accurate descriptions in the body of the work, all danger of error may be avoided. For some cf the larger families, as the Finches and the Warbles, there is alsoa Field Key to the Adult Males in Breeding Plumage. Though not too large to be carried in the pocket, the work is a gem -of the art of bookmaking. In addition to upwards of 100 cuts of bills, feet, etc., scattered through the text, there is a colored frontispiece, “*Bob-white,” a Color Chart, and 18 full page plates in “half- 114 THe Orrawa NATURALIST. tone.” The Color Chart is somewhat disappointing ; what should be the brighter colors are altogether wanting in brightness. ‘Ihe half-tone plates. however, are all that can be desired. The Clapper Rail, Spotted Sandpiper and Young, Least Flycatcher and Phoebe, Meadowlark, and Wood and Wilson’s Thrushes seem almost alive. Al Glee Archezology.—-NorEes ON THE ANTIQUITIES OF LAKE DESCHENES. Along the shores of Lake Deschénes are many points of Archeo- logical interest ; and it is in the hope that some of the members of the Field Naturalists’ Club may devote their time to a more special investiga- tion of this branch of scientific research that I now call attention to some of them. It is needless to say that the Ottawa River, of which this lake is an expansion, was, during the French régime, the great highway between the region of the great lakes and the French settlements on the St. Lawrence. Indians and “coureurs de bois” engaged in the fur trade, as well as governors of Canada, either in voyages of discovery or expeditions against their Indian enemies, traversed the waters of this river. It was at times, also, the objective point of war parties of hostile Iroquois, who, after the subjugation of their Huron kinsmen, carried the tomahawk, tn a war of extermination, far into the wilds to the north of the Ottawa. Some of the descendants of the Indians and voyageurs who took part in these stirring scenes, connected with the pioneer days of New France, are now living in Aylmer and vicinity ; and it would be well to secure from them the traditions and stories attaching to points of local interest before the present generation passes away. On the Ontario shore of the lake, at Raymond’s point oj:posite Aylmer, is the site of an old Indian workshop where flint weapons have been fabricated. My attention was first called to it, some time ago, by Jacob Smith of the Interior Department, its discoverer. Mr. Smith shewed the writer some flint arrow heads, and a spear head of the same material, which he had discovered at this place. Nores, Revirws axnp ComMeEn'’s, 115 Narcisse Noel of Aylmer, in company with the writer, also found _ some imperfect arrow-heads at this place, which appear to have been rejected by the ancient workmen. For about roo yards along the shore, between high and low water mark, the rocks are littered with chips and shreds of black flint, which are also washed out of the gravel at high water mark after heavy rains. ‘These flints resemble those found in great abundance in the Trenton limestone at Hull, from which place it is just possible they may have been taken. It is said that these flint chips have also been found on Snake Island a short distance from here, so that this locality seems to offer opportunities to the archaeolo- gist that should not be overlooked. Some years ago a quantity of human bones was found buried in _ the sand on the Light-house Island just above Aylmer, which the late Dr. C. M. Church, to whom tney were presented, regarded as typical of the North American Indian. A short time ago, at Pointe a la Bataille about 10 miles above Aylmer on the Ontario shore of the lake, Joseph Leclaire of Aylmer _ discovered a large “‘cache ” of bullets. As Mr, Leclaire bought home nearly half a bagfull without exhausting the find, it does not appear credible that so large a quantity of ammunition could have been “cached” by hunters; but, judging from the name of the place, one inclines rather to the supposition that this store had some connection, in the past, with the movements of war parties, either white or Indian, operating along the lake. An interesting tradition, told by the old “ voyageurs” now living in Aylmer, is associated with Lapoté’s and Sand Points lying respec. _ tively to the east and west of Sand Bay at the mouth of Constance Creek about 15 miles above Aylmer. ‘The tradition is a follows :— Many years ago, during the French régime, a party of “coureurs de bois” were encamped at the former point ; while Sand Point to the west of the bay was occuied by a superior force of Indians, probably a war party of hostile Iroquois. An encounter was imminent and it remained to be seen which party would circumvent the other. The French fur traders, whose daring and brilliant exploits at this period are a matter of history, were not to be taken by surprise. Leaving their camp fires 116 THE Otrawa NATURALIST. burning on the high rocky shore at Lapoté’s Point, to deceive their wily enemies, the little band of intrepid Frenchmen traversed the forest to the east of the bay, forded Constance Creek, passed beneath the shadow of the pine groves on the sand hills to the north of the bay and fell suddenly on the Indian camp on SandePoint. The encounter was sharp and terrific and resulted in the utter defeat and route of the Indians. Wm. Baillie, of Avlmer, informed the writer that a great many bones are scattered over this point; and Mr. Montgomery, who recent- ly lived in the vicinity, stated that his two sons discovered, at this place, an almost perfect human skeleton. Mr. Baillie also states that some years ago, on the eastern shore of the bay, a number of copper kettles, of ancient design, were unearthed. These facts would seem to cor- roborate, to some extent, the above tradition and invite a closer investigation of the subject. The weird Indian legends of prolonged conflicts with Wendigoes, supposed to have inhabited the sand dunes of Sand Point, should also be collected before the generation of old men, now retaining them, have passed away. The old Indian portage at the Chats should also be a point of great interest to the archzologist. The remains of old bullets, badly decayed, have been found by the writer in the crevices of the rocks at this place, strongly suggestive of the times when these “carrying places” were disputed, foot by foot, by hostile war parties. An old copper coin and other ancient works of art, found on the lake shore at Aylmer, as well as an iron tomahawk of peculiar design discovered by S. H. Edey some two miles inland from this place, are matters of interest. Finally, I might say that members of the Field Naturalists? Club who wish to make a _ careful examination of places alluded to in the above will soon be in a position to do so. Capt. Davis will shortly have a steamboat running between Britannia and the Quyon, which will enable us to make any of these places the objective point of an excursion of the club. ‘Traditions and folk-lore stories associated with Lake Deschenes should then be collected and recorded before the hand of time has placed them beyond our reach. T. W. Epwin Sowrer. Aylmer, Que., July 29th, 1895. THE OTTAWA NATURALIST, Vor. IX. OTTAWA, SEPTEMBER. 1895. No. 6. CRYSTALS.* By W. F. Ferrier, B.A.Sc., F.G.S. Lithologist to the Geological Survey of Canada. I have nothing original to offer you on this subject, nor are my remarks intended to constitute a lecture on crystallography, but merely to bring to your notice some interes ing facts with regard to those won- ‘derful forms which we call crystals, and more especially to trace out the progress made in the study of them since the earliest times. The sub. __ ject is so vast that it will only be possible for me to call attention to some of the more pro:ninent and interesting facts, which constitute, as it were, — the milestones along the road of our knowledge of the subject. At the outset we are confronted with the question ‘‘ What is a crystal ?” So many definitions have been given that it is somewhat difficult to select one which is expressed in simple terms and at the same time is: e comprehensive and accurate. E. S. Dana says :—‘“ Structure in Inorganic nature is a result of _ mathematical symmetry in the action of cohesive attraction. The forms produced are regular solids called crysta/s ; whence morphology is, in the Inorganic kingdom, called crystTaLLOLoGy, It is the science of structure in this kingdom of nature.” He subdivides the subject as follows :— {treating of forms resulting from oy sallography | crystallization. treating of the methods of making Crystallogeny =~ crystals, and the theories of their origin. _Crystallology * (Read before the Ottawa Field Naturalists’ Club, Dec. 20th. 1894.) 118 THE OTTawa NATURALIST. Naumann’s definition of a crystal is a very concise and satisfactory one. Itis this :—‘‘ Any rigid inorganic body possessing an essential and original (primitive) more or less regular polyhedric (many-sided) form which ts directly connected with its physical properties.” This latter clause of the definition is very important as explaining _ why cleavage fragments, pseudomorphs &c. are not to be termed crystals. To the question zy calcite, for instance, should assume one form of crystal, and garnet another, science can return no answer, but must content itself with determining and describ:ng these curious and multi- farious forms. The word “crystal” is derived from the Greek word “Apvora@aAA0c” »” meaning “ ice The ancients first gave this name to the variety of quartz which we call “ Rock-crystal,” because, from its transparency, its usual freedom from color, and the way in which it was found to en- close other bodies, they imigined it had been formed by the action of intense cold on water, which thus became extraordinarily hardened. The name was later transferred to pure transparent stones, such as were after used for seals and engraved gems. Some of the old writings on this subject are very amusing. Albertus Magnus, inthe middle of the 13th century, gravely relates how the jntense cold on the summits of some lofty mountains d/vzes the ice so thoroughly that it becomes crystal. Even as late as 1672 the learned Robert Boyle goes into a long dissertation to prove that crystal could not be ice, adduciny as two of the strongest proofs of this, first, the fact that ice floats on water and crystal does not, and, secondly, that Mada- gascar, India, and other countries in the torrid zone, abound in crystal, and he could not believe that any ice, however hard, could withstand the heat of those-countries. Later the term ‘“‘ crystal” was applied to any mineral naturally limited by plane faces. It was not until 1669 that any important discovery regarding the properties of crystals was made, and then it was thit Nicolaus Steno, a Danish physician, discovered for the first time the constancy of angles in Rock-crystal. But it is generally admitted that Steno himself did not fully grasp the importance of his dis- CRYSTALS. 11g covery, which was more a deduction froin the mathematical form of the particular body he observed thana broad generalization from a_ series of observations ofdifferent bodies. Itmust bebornein mind that the ancients knew and had described crystals of certain minerals as having a constant number of faces (or planes) arranged in a farticu/ar way. But Steno went further than this and shewed that another constant existed. He cut a number of sections of variously shaped prisms of quartz (r.) at right angles to the edges of the prism,and (2.) at right angles to the edge formed by a face of a pyramid with a face of the prism and found in the first case (see Fig. 1) that the angles of any one section were equal to each 2 2 Fig. 1. other and also to every angle of the other similar sections, and in the second case (see Fig. 2) he found that the sections had two angles equal UG Fig 2. to 4 an] four angles equal to ¢c,except when the prism was absent in the crystal, when the section was a four-sided figure with two opposite angles equal to 4, as shewn on the left in Fig. 2. His inference was that in all specimens of Rock-crystal correspond- ing pairs of faces have the same inclination. Thus was taken the first step towards the discovery of one of the three great fundamental laws governing the formation of crystals, which has been enunciated thus :— THE LAW OF CONSTANCY OF ANGLES. Crystals of tae same substance, whether natural or formed in the laboratory, are essentially constant in the angle of inclination between like planes. Fora whole century the law discovered by Sten9 was not elaborated until, 120 THE Orrawa NATURALIST. in the year 1772,Romé Delisle,a pupil of Linnzeus, shewed that the various shapes possessed by crystals of the same substance, natural or artificial, are all intimately related to each other. He formed a large collection of natural crystals which he carefully studied and was particularly interested by the fact that the same mineral often occurred in widely. different forms. His studies led him to the conclusion that the shape of every crystal of the same substance is such as can be derived by a particular process from a certain fundamental figure called the Przmztive Form, the shape and angles of which depend only on the nature of the subs_ tance itself. All the multitudinous forms which asubstance such as pyrite (sulphide of iron) assumes, he found could be produced by replacing the edges or the solid angles of the primitive form by single planes or groups of planes, but always in sucha manner that the total alteration is similarly related to all parts of the primitive form which are geometri- cally similar. Thus, as a simple example, by cutting off the angles of a cube it may be converted into an octahedron. These planes of replacement were ,egarded by him as being secondary and more or less accidental. Werner in his treatise “On the External Characters of Minerals ” had employed the terms Adstumpfung = truncation, Zuscharfung = bevel- ling, Zuspitsumg=acumination, in speaking of similar variations or changes from the fundamental form of crystal, but it is thought that Delisle did not knowof this at the time he wrote. Delisle set to work to determine the primitive forms of all substances, which work was greatly facilitated by the invention at this time of the goniometer. This instrument was invented by a Frenchman named Carangeau, who prepared the clay-models used by Delisle to illustrate his theory, It was designed for the measurement of solid angles, particularly those of crystals, and was of the form known as the common or contact gontomefer. A much more elaborate and accurate instrument for the same pur- pose is the reflecting goniometer of Dr. Wollaston, devised by him in 1809, of which several elaborate modifications are now employed by crystallo- graphers. Carangeau’s goniometer consisted essentially of a graduated arc and two moveable arms. Its form may be learned by referring to the figures given in almost all text-books of mineralogy. The great CRYSTALS. 121 objection to it is that it is impossible to employ it in the case of very small crystals, whilst the reflecting goniometer may be used to measure accurately the angles of crystals only ,),th of an inch in size. Romé Delisle, as the result of his researches, came to the conclusion that the primitive forms of all known substances were only six in number, namely :— 1. The cube. The regular octahedron. The regular tetrahedron. The rhombohedron. . The octahedron with a rhombic base. The double six-sided pyramid. ANE ON These were announced in his treatise on Crystallography published in 1783, in which he figures no less than 500 distinct forms of crystals. The weak point of his theory was the fact that the whole series of forms of any one substance could be derived not only from the primitive form, but from almost any of the series, thus rendering it impossible to lay down an exact rule as to which of these was to be regarded as the true primitive form. He was guided in his choice by the largeness of development and frequency of occurrence of particular faces and the simplicity of the figure they formed. Thus he chose both cube and regular octahedron, although, as we now know, these forms really belong to one and the same series and may be derived the one from the other. Many of his contemporaries doubted not only his choice of primitive form; but the very existence of the series, and Buffon’s objections, as set forth in his ‘‘ Natural History of Minerals ” published ten years laier (1783), bore testimony to the difficulty of the important step taken by Romé Delisle. It was far from being obvious that all the crystalline forms of a mineral belong to one series. As early as 1773, Bergman, a celebrated Swedish chemist, shewed in his writings that he recognized the importance of cleavage, and by it he tried to explain the relationship of the various forms assumed by the same mineral, which had so interested and puzzled Delisle, who, however, assigned little or no importance to cleavage, speaking, as he does in the preface to his treatise mentioned above, most contempt- 122 THe Orrawa NATURALIST. uously of the ‘‘drtse-cristaux” or ‘crystalloclastes.” But Bergman did not proceed far enough, and it remained for another to fully develop the theory of the structure of crystals as indicated by their cleavage. In 1784 the Abbé Haty made his remarkable discovery, which, like Newton’s immortal one, was the result of a mere accident. A six-sided prism. of calcite (carbonate of lime) had been broken from a large group in the cabinet of M. Defrance, and he noticed that the fractures were smooth and polished, not irregular as in the case of ken glass. He then commenced splitting-up the crystal with his knife and finally reduced the six-sided prism to a rhombohedron. Extending his experiment to other minerals Hauy arrived at the con. clusion that the kernel obtained from a mineral by cleavage was to be regarded as its true primitive form. E. S. Dana defines cleavage as the tendency to break or cleave along certain planes due to regularity of internal structure and fracture, produced, in addition to external symmetry of form, by crystallization; and he states two principles :— (1) In any species, the direction in which cleavage takes place is always parallel to some plane which either actually occurs in the crystals or may exist there in accordance with certain general laws. (2) Cleavage is uniform as to ease parallel to all like planes. That is to say that if it may be obtained parallel to ove of the faces ofa regular octahedron, for instance, it may be obtained with the same facility parallel to each of the remaining octahedral faces. Haiiy’s primitive forms were ten in number, four more than those ot Roméde l’Isle. They were :— The cube. 2. The regular octahedron. 3, The regular tetrahedron, 4. The rhombic dodecahedron. 5. The rhombohedron, obtuse or acute. 6. The octahedron, with square, rectangular, or rhombic base. 7. The four-sided prism, with edges at right angles to the base, the base being either a square, a rectangle, a rhomb, or merely a parallelo- gram, CRYSTALS. L2a 8. The four-sided prism, with edges inclined obliquely to the base, the base being either a rectangle, a rhomb, or merely a parallelogram. g. The regular six-sided prism, 10. The Gouble six-sided pyramid. _~ He also grouped all these forms in a general way thus :-—— : 1. Figures bounded by parallelograms. 2. Figures bounded by eight triangles. 3. The regular tetrahedron. 4. The regular six-sided prism. 5. The double six-sided pyramid. Haily was let by his study of cleavage to frame a theory regarding the structure of crystals and to discover a second great law governing their formation, namely the one which connects the secondary faces with those of the primitive form. He found that the kernels which he obtained by cleavage could be split up,apparently indefinitely, into smaller fragments of the same shape, and, not believing that this process could go on to infinity, came to the conclusion that every crystal of the same substance could, theoretically at least, be cleaved into minute bricks ofa definite size and shape though two small to be separately visible, and therefore that with these bricks a crystal possessing any of the forms in which the particular mineral occurs, might be built up. As the simplest illustration take the case where the bricks are little cubes. The conditions to be produced are that the built-up crystal must possess cleavage, and at all its parts the faces obtainable by cleavage are to have the same directions, also that its outer surface must consist of a series of plane faces. A cube composed of these little bricks could be increased in- definitely in size by adding layers of these bricks to each of its faces. Conversely, it might be decreased in size by taking away the layers. But suppose that the decrease takes place by the regular subtraction of one or several ranges of bricks in each successive layer ; theory, by calculating the number of these ranges required for a particular form, can represent all known forms of crystals and also indicate fosstble forms for a particular mineral which may not yet have been observed in th 124 THe Orrawa NATURALIST. natural crystals. Figs. 3 and 4 will serve to illustrate what we have just been discussing. Fig. 3. Fig. 4. Fig. 3 illustrates a cube composed of little cubical bricks, some rows of which are removed to shew the resulting step-like arrangement of the layers. All the edges of the steps lie 1n one plane, as seen in Fig. 4. If we remember that the little bricks are supposed to be so minute as to be separaiely invisible, it will be seen that the steps will appear to lie wholly in the plane, which thus torms a secondary face equally in clined to two faces of the cube. Hat also shewed how a rhombic dodecahedron resulted from the application of successive layers of these little bricks, each less by one row all round, to the faces of the primitive cube, and of course the same result may be obtained by subtracting rows in the same man- ner, (See Fig 4.) Fig. 5. He also assumed in some cases that the decrease was parallel, nc¢ to the edges of the crystal, but to a diagonal, taking the angles as its point of departure. His theory established the fact that the various CRYSTALS. 125 forms of crystals are not irregular or accidental, but definite, and based on certain fixed laws; and he pointed out that whilst certain forms are derivable from a given nucleus, there are others which cannot occur. Moreover he observed that when any change in a crystal took place by its combination with other forms, all similar parts (angles, edges and faces) were modified in the same way. Most important of all, he shewed that these changes could be indicated by rationa/ co-efficients. Thus Hatiy became the discoverer of two of the three great laws of crystallography, namely, THE LAW OF SYMMETRY, and THE LAW OF WHOLE NUMBERS. The other, THE LAW OF CONSTANCY OF ANGLES, we have already mentioned. Let us consider for a moment Hawy’s two laws, taking first :— THE LAW OF SYMMETRY. E.S. Dana enunciates this as follows: ‘“‘The symmetry of crystals is based upon the law that either : 1. All parts of acrystal similar tn position with reference to the axes are similar in planes or modification, or 11, Each half of the similar parts of a crystal, alternate or symmetrical in position or relation to the other half, may be alone stmtlar in tts planes or modifications. The forms resulting according to the first method are termed holohedral forms and those according to the second, hemzthedral.” An easy experimental way of studying the symmetry of crystals is to cut one, or the model of one, in two, and place the parts against the surface of a mirror, which may or may not produce the exact mp- pearance, of the original crystal. If it does produce the exact appearance we have severed the crystal in a plane of symmetry. By referring to Fig.6 it will readily be seen that a cube, for in- stance, possesses #/ne such planes, indicated by the dotted lines. Fig. 6. In a sphere there would of course be an infinite number of these planes. 126 Tue Orrawa NATURALIST. Now with regard to the second law :— e THE LAW OF WHOLE NUMBERS. The meaning of this is simply that Hauy found that the secondary faces had only such positions as would result from the omission of w/o/e numbers of rows of bricks and from the layers having a thickness measured by some multiple of that of a single brick. He actually proved by measurements that the number of bricks in the width or height of a step rarely exceeds six But. Hauy’s theory of the structure of crystals had many weak points in it ~‘which speedily became _ objects. of attack. One of his first critics was Weiss, Professor of Mineralogy at Berlin, who translated Haiiy’s work into German, in 1804. He shewed that Haity’s “ primitive forms,” as professor Nichol puts it, “erred both in excess and defect,” and that the ‘‘ bricks” were not needed at all to explain the facts observed, in fact, the planes, so-called, built up of them, would not reflect light. Bernhardi, a doctor residing in Erfurt, pointed out that the dimensions of the ‘primitive forms” could not be determined from themselves, their height depending on another form. Also that various crystals, which he named, were much more readily explained from other forms than those taken by Haty as their “ primitives”. In fact, numberless objections were raised ; thus, it by no means follows that because a crystal may be reduced to a certain form by cleavage, that its growth has resulted from the grouping together of fragments having that form ; again, some minerals have no cleavage, whilst others cleave only in one or two directions ; again, it is hard to conceive of a crystal built up, for instance, of little octahedrons, which, in order to have their faces parallel to the cleavages of the resulting crystal, and be parallel to each otlier, would have only their angular points in contact, thus form- ing a most skeleton-like and unstable structure. But Hauy’s theory, pointing asit did to the great importance of the angles of the faces and cleavages of crystals, served to direct attention to them, and led to their more accurate study and determination. It was not so much Haity’s data that required correction, but the substitution of a better theory to connect his facts was needed. The development of the atomic theory of the constitution of CRYSTALS. 127 matter furnished this, and, instead of “bricks”, we reason about “atomic groups,” whose centres of mass are arranged in straight lines and parallel planes, as were the centres of the “ bricks” in Hatiy’s original theory. - Weiss was the first, in 1808 to point out the importance of the axes of crystals, although Haty had referred to them. He says :—‘“The axis is truly the line governing every figure round which the whole is uniformally disposed. All the parts look’ to it, and by it they are bound together as by a common chain and mutual contact.” These axes, it must be borne in mind, are not mere geo- - metrical lines; but it is in reference to them that the forces work which have formed the crystals. Weiss proceeded to arrange Haity’s prémztive forms into four classes, each distinguished by a purely’ geometrical character ; and then from these four classes of sets of lines, he deduced all the przmetive forms by the construction of planes passing :— - t. Through ends of three lines. 2. Through ends of two of the lines and parallel to the third. 3. Through an end of one of the lines and parallel to two of them That is, these pianes passed through the end of a line, or else did not meet it at all. These axes were, in fact, the co-ordinates of the crystal faces of the primitive forms of Hatiy. By taking points along each of these lines at distances equal to twice, three times, four times, etc., the original length, he found, constructing planes as before, that he obtained a set including all the secondary planes described by Haty as occurring in actual crystals. Thus he was enabled to devise a very simple system of designating the various faces of crystals, which also greatly facilitated the calcula- tion of their angles. Haiiy had attempted this in conformity with his theory, but his symbols were complex and unwieldy. It is a curious coincidence that at the same time as Weiss was developing his system, Mohs, Werner’s successor at Freiberg, working quite independently, arrived at the same division of crystals into four classes, but by a very differen. process of reasoning. These four classes he termed “ Systems of Crystallization.” oy* 128 Tue Orrawa NATURALIST. Mohs also shewed that since all the similar edges and solid angles of his fundamental figures were to be similarly altered, the existence of one derived plane necessitated, as in Romé Delisle’s theory, the simultaneous existence of a number of others having definite positions. Such a set of faces he called a szmfple form. If the faces of more than one simple form are present, the resulting form was termed a combination. At this time Sir David Brewster was engaged in his wonderful researches on the optical properties of crystals, and the results of his experiments on the polarization of light brought out in such a remark- able manner the intimate relations existing between their behaviour with regard to light passing through them, and the number of kinds of axes they possessed, that Whewell has justly said, “Sir D. Brewster’s optical experiments must have led to a classification of crystals into the above systems, or something nearly equivalent, even if the crystals had not been so arranged by attention to their forms.” Sometimes crystals were observed by both Weiss and Mohs which, instead of being complete simple forms, like the regular octahedron, presented only Za/f the regular number of faces, as, for example, the regular tetrahedron, which may be derived from the regular octahedron by suppressing its alternate faces. Delisle and Hat had regarded the tetrahedron as a distinct kind of primitive form, but Weiss and Mohs found it necessary to postulate that simple forms may not only be complete, but semi-complete also, pointing out, however, that the half which presents itself is not an arbitrary one, but can always be derived systematically from the complete simp'e form. The complete simple forms were termed Aolohedra/, and the semi- complete ones hemthedral. In 1822, Mohs added two more systems of crystallization to the four already described by Weiss and himself; but Weiss brought forward very strong objections to their recognition, and their independance was not fully established until 1833, when the actions on light of crystals belonging to these systems were first studied. They were what we now call the monoclinic and triclinic systems. The researches of Weiss and Mohs may be said to have given to ? f { ; (CRYSTALS. 129 crystallography its present form, in all essential points,as a pure science, and subsequent progress has been along the lines of working out details rather than modifying its foundations. The accompanying table, (page 130’, will shew at a glance the six systems of crystallization now recogniz d, with their principle synonyms and exam les of minerals for each system. Very often crystals are met with in which one or more parts are reversed with regard to the others, often presenting the appearance of two crystals symmetrically united. These are termed zn crystals, but the theory of their formation is too elaborate to be gone into in the present paper. Time will not permit me, eithcr, to go into details respecting the various methods of designating the faces of crystals by numbers or symbols, and of calculating their angles. That of Naumann is, perhaps, the one most employed. This subject belongs, however,more to pure geometric crystallography, and will be found fully explained in the text-bocks. I can only briefly mention here some of the many wonderful physical properties possessed by crystals. The researches of Brewster on polarized light have already been referred to. The discovery that the shape of the cleavage-form is intimately related to the action of the crystal upon light is due to him ; and his researches, as already mentioned, confirmed the exisience of the two additional systems of crystallization recognized somewhat doubt- fully by Mohs. One of the most remarkable discoveries of recent times was the mathematical demonstration by von Lang, Quenstedt, and others, that six, and ov/y six, systems of symmetry are possible for all crystallized matter. In 1822, Mitscherlich announced his discovery of tsomorphism, the property which substances analogous in chemical composition possess of crystallizing in forms closely resembling each other, and with only a slight difference between their corresponding angles. A good example is siderite and dolomite, the crystal form being a rhombohedron. Mitscherlich also pointed out that the same substance (simple or compound) may crystallize in two distinct systems (dimorphism ),or even in three or more (frimorphism and polymorphism) Thus the sulphide of iron crystallizes in the isometric system (fyrtt), and also in the orthorhombic system (marcastte). ¢ ss ~~ - — F Pia a o sf wat “ o < 4 - 3 # a ~~) > ¥ 130 Tue Orrawa NATURALIST. SYSTEMS OF CRYSTALLIZATION. * c I NAME. AXES. PLANES OF. | Examphes, SYMMETRY. I. ISOMETRIC.— Tessular, Mohs & Haidinger. Tsometric, Hansmann. Pessoal Manecanas Three, of equal length, : Fluor Spar. Pe AWOL Ros intersecting e€ac h Nine. Galena. ala : other at right angles. Pyrite. Cubic, Dufrenoy & Miller. Moanometric, Dana (early editions. ) SS ee ee Jip SES —— a II]. TETRAGONAL.— Pyramidal, Mohs. Three, intersecting each rales Zwei-und-einaxige, Weiss. other at right angles. Zircon. _ Tetragonal, Naumann. The lateral ones Five. Vesuvianite. Monodimetric, Hausmann. equal in length ; the) Cassiterite. Quadratic, von Kobell. | verticala varying one ; Dimetstc,Dana (early editions) | OE ——E ee III. HEXAGONAL. HEX. proper. Rhombohedral, Mohs. Four, the three equal} Seven; 3 Drei-und-einaxige, Weiss. lateral ones inter-| at 60°; one Hexagonal, Naumann. | secting at angles of} normal to/Calcite. Monotrimetric, Hausmann. | 60° and the vertical) these; three/Quartz. Nore.— ThisSystemhasaRHOM-| one, at right angles) auxiliary.|Apatite. BOHEDRAL DIVISION, which! to these, varying in} RHomM.Drv). includes forms with only 3) length. Three at planes of symmetry. | 120°. IV. ORTH RHOMBIC,— Prismatic or Orthotype, Mohs. Ein-und-einaxige, Weiss. Rhombic and Antsometric, Naumann. Trimetric and Orthorhombic,| Three, of unequal length, intersecting each other at — Three, at right) Barite. angles _ to) Topaz. each other.|Aragonite. Hausmann. angles. Trimetric, Dana, (early edi-} tions. ) ae V. MONOCLINic,— Hemiprismatic and Llemior- thotype, Mohs. Three. of unequal Zwei-und-eingliederige, Weiss.| length, two inter- Aasite: Vonoclinohedi al, Naumaun. i igh ugite. Aw, f 3 z secting at night O Gypsum Clino hombic, von Kobell,} angles and the third oo on la Hausmann, Des Cloiszeaux.| intersecting one o). rthoclase. Augitic, Haidinger. the others obliquely. Oblique, Miller. | Popes nielrtc, Groth. ’ VI. TRICLINIC. Tetarto PRL AES Mohs. Ein-und-eingliederige, Weiss. 1 iclinohedral, Naumann. Three, of unequal Anorthite. Clinorhomboidal, von Kobell. length, all the in- None. Albite. Anorthic, Haidinger, Miller,| tersections oblique. Cyanite. & Des Cloiszeaux. eo Asymmetric, Groth. i CRYSTALS. 131 The magnetic and electric properties of crystals, and their relations to heat, all shew the same intimate connection and dependence on their crystalline form observed in the case of their optic properties. For fuller details of the subject treated of in this paper I would refer you to the many excellent text-books of mineralogy, and to the articles treating of the various divisions of the subject in the encyclopceedias. A most excellent little work is that by Mr. Fletcher of the British Museum, _ from which I have freely quoted. In conclusion I would call your attention to the fact that we Canadians have in our own country a vast unexplored field of research in crystallography. Canada has afforded the most magnificent crystals of many mineral species, which the world has ever seen. I need only mention the superb and unrivaled crystals of zircon, apatite, phlogopite, sphene &c. which grace the museums of Europe and this continent. Many of our localities present unusually favorable conditions for : _ studying the mode of formation of the various crystallized minerals, and if my remarks this evening awaken in some of my hearers an interest in the fascinating study of the wonderful laws governing structure in inorganic nature, my object will be accomplished. CLUB EXCURSION TO PAUGAN FALLS. The last Excursion of the season will be held on SaturpDay, 14th instant. to PAUGAN FALLs, on the Gatineau. The train will leave Union Station at 9.45 a.m.; returning, reaching Ottawa at 8.00 p.m. This is a new locality to members of the Club, and must prove of H great interest, both as a collecting ground, and from its scenic beauty. ; Members will assist the Club by notifying their frtends of the Excursion. RatEs—Members, Adults, 60c. Non-Members, 7oc. Children, half-price. 132 THE OTTAWA NATURALIST. LIST OF NATIVE TREES AND SHRUBS” GROWING AT THE CENTRAL EXPERIMENTAL FARM, OTTAWA, JULY; 1895: By W. T. MAcouwn. For the first part of this Paper, see August number of the OTTAWA NATURALIST. SAPINDACE-,,— (continued ) (419) ACER NIGRUM, Michx. Ontario. Large tree ; hardy. (420). A. DASYCARPUM, Ehrh. Silver, or White Maple. N:B:; -Que:*/ Ont. Large tree ; hardy ; leaves ornamental in Autumn. (421.) A. RUBRUM, Linn. Red, or Soft Maple. Large tree ; hardy; leaves ornamental in Autumn. 126. NEGUNDO, Meench. (Ash-leaved Maple.) (422.) N. ACEROIDES, Mcench. Box-Elder. Ont2;) Mans NWF: Tree ; hardy. XXX. ANACARDIACEA:—Sumach Family. 127. RHUS, Linn. (Sumach.) : (423.) R. TypHIna, Linn. Stag-horn Sumach. N.S: 3 N.B. 7 Oue: 5 -Onr Tall shrub or small tree ; hardy ; leaves ornamental in autumn. (424) R. GLABRA, Linn. Smooth Sumach. NS: 3 NB:; Oue.4 Ont Tall shrub ; hardy. (427.) R. ToxicopENDRON, Linn. Poison Ivy. N.S. ; N.B: 3 Quet-3> Ont. 5 “Man. NWS eee Small climbing shrub ;_ hardy. ; List oF Native TREEs, &C. 133 (429.) R. aRomatica, Ait. Fragrant Sumach. Ont. | Shrub ;_ hardy. VAR. TRILOBATA, Gray. mae. 5 BC. Shrub ;_ hardy. XXXI. LEGUMINOSA:—Pea Family. 138. AMORPHA, Linn. (False Indigo.) (480.) A. CANESCENS, Nutt. Lead Plant. Man. Shrub ; hardy. (481.) A. FRuTICOsA, Linn. False Indigo Man. Shrub ;_ hardy. 153. GYMNOCLADUS, Lam. (Kentucky Coffee Tree.) (566.) G. CANADENSIS, Lam. Western Ontario. Large tree ; hardy. XXXII. ROSACEA -Rose Family. 155. PRUNUS, Tourn. (Plum. Cherry.) (568.) P. AMERICANA, Marshall. Wild Plum. Que.; Ont.; Man. Small tree ;_ hardy. (569.) P. MARITIMA, Wang. Beach Plum. Ns. DB, 5 Shrub ; hardy. (570.) P. pumiLa, Linn. Sand or Dwarf Cherry. N.B.; Que.; Ont.; Man. Shrub ; hardy. (571.) P. PeNNsytvanica, Linn. Bird Cherry. Reece, = QOne,; Ont.; Man.» N.W.T. 7 BE. Tree ; hardy. 134 Tue Orrawa NATURALIST. (573.) P. Vircrniana, Linn. Choke Cherry. N.S.; N.B.; Que.; Ont. ; Man.; N.W.T. @B.C. Tall shrub, or simall tree; hardy. (575.) P. SEROTINA, Ehrh. Black Cherry. Ned. SN B.e Ouer> Ons: Tree ; hardy. 157. SPIRAZA, Linn. (Meadow-sweet.) (577.) S. sALiciroLia, Linn. Common Meadow-sweet.) JIN. S35 N.B.> Ques; Oat, 57 Manes ioe tc Shrub ; hardy; flowers ornamental. (578.) S. romenTosa, Linn. MHardhack. Steeple Bush. NiS. = N-B; .Oue. 5). Ont. Shrub ; hardy; flowers ornamental (579.) S. BETULIFOLIA, Pallas. Birch-leaved Spirza. WoWe-l. abe: Shrub recently planted. (580.) S. DouGrasi, Hook. B.C. Shrub; hardy; flowers ornamental. (581.) S. DiscoLor, Pursh. var. ARI4FOLIA, Watson. B.C. | Shrub ; hardy. 158. NEILLIA, Don. (Nine Bark.) (584.) N. opuLiFoLiA, Benth. and Hook. Que. ; Ont. Shrub ;_ hardy. 160. RUBUS, Tourn. (Bramble.) (586.) R. oporatus, Linn. Purple, Flowering Raspberry. Ns. 3) N.B. 37 Oues52One. Shrub; hardy; flowers ornamental. (587.) R. NurKanus, Mocins. White, Flowering Raspberry. Ont.'; Matt =) INWe tag oe Shrub ; hardy; flowers ornamental. Puy Pes # os Sa. ed . CP List or Native TTEEsS, Xc. » (594.) R. STRIGOSUS, Michx. Red Raspberry. Shrub ;_ hardy. (596.) R. occrpENTALIS, Linn. Black Raspberry. mer, ¢ Que.; Ont. Shrub ;_ hardy. (600.) R. vittosus, Ait. Thimble Berry. Moses N-B: 5 “Que. ; Ont. Shrub ;_ hardy. 172. ROSA, Tourn. (Rose.) (659.) R. SETIGERA, Michx. e , Ont. Shrub; hardy ; flowers ornamental. (660.) R. Caroina, Linn. Swamp Rose. mee N.B.; Que.; Ont. Shrub; hardy; flowers ornamental. (661.) R. Luctpa, Ehrh. Dwarf Wild Rose. Paes 6.5 Oue.; Ont. Shrub ;_ hardy ; flowers ornamental. (662.) R. BLaNDA, Ait. Early Wild Rose. oe eont.; Man.; N:W.T.; B.C. Shrub ; hardy; flowers ornamental. (663.) R. acicuLaris, Lindl. Man,; N.W.T. Shrub ; hardy; flowers ornamental. 173. PIRUS, Linn. (Pear. Apple.) (671.) P. coronaria, Linn. American Crab Apple. Ont. Small tree ;_ hardy. (673.) P. ARBUTIFOLIA, Linn. Choke-berry Pas > Ove.) Ont.;; Shrub ;_ hardy. See o.; One. ; Ont.; Man. ; N-W.T.; BC. re. 136 THE OtrrawAa NATURALIST. VAR. MELANOCARPA, Hook. W-s-3-IN-Bv; Ques; Ont: Shrub ; hardy. (674.) P AMERICANA, DC. American Mountain Ash. Noa: oN bos (Oue,< “Ontie Mane Small tree; hardy; fruit ornamental. 174. CRATAGUS, Linn. [White Thorn. ] [678.] C. coccingEa, Linn. Scarlet Fruited Thorn. WS 3 Ques Ont ; Manz: DeWs- Small tree ; hardy ; fruit ornamental. [679.] C. TomeNTosa, Linn. Black or Pear Thorn. NS; NB); Ouets Ont Small tree ; hardy. [681.] C. Crus-GaLui, Linn. Cockspur Thorn. Western Ontario. Small tree ; hardy; leaves and fruit ornamental. 175. AMELANCHIER, Medic. [June-Berry. ] [685.] A. Canapensis, Torr. and Gray. N.S: 5 N.B4~Ones (Ong. Tail shrub or small tree ; hardy. XXXIII. SAXIFRAGACEA —Saxifrage Family, 186. PHILADELPHUS, Linn. [Mock-Orange. ] [744 | P. Gorponranus, Lindl. B.C. Tall shrud ; hardy; flowers ornamental. 187. RIBES, Linn. [Currant. Gooseberry. | [749-] R. Cynoszati, Linn. Wild Gooseberry. NB. ‘Ote: ;-Ont™3> Man Shrub ; hardy. [750.] R. LacustTRE, Poir. Swamp Gooseberry, NS. 5; N.B. 5 Queé.3, ‘Ont: 5.oMan. NW. sae Shrub ;_ hardy. List or NATIVE Treks, &C. [752.] R. RuBRuM, Linn. Red Currant. Bee SN G.: Que: ; Ont.; Man.; N.W.T.: B.C. Shrub ;_ hardy. [753-] R. prostratuM, I Her. Tetid Currant. oer; One. ; Ont.; Man, ; -N.W.T.; BC. Low shrub ;_ hardy. [757-] R. rLortpuM, L’Her. Black Currant. N-S.; N-B.; Que. ; Ont. ;. Man. Shrub ; hardy. [760.] R. sanGuINEUM, Pursh. Red, Flowering Currant. B.C. Shrub; tender ; flowers ornamental. _ [761.] R. aureuM, Pursh. Missouri Currant. N.W.T. Shrub ; hardy ; flowers ornamental. XXXVI. HAMAMELACEA:—Witch Hazel Family. 19t. HAMAMELIS, Linn. [Witch Hazel.] [775-] H. Vircintana, Linn. Base .; Onue.; Ont. Tall shrub ; hardy. XLVII. CORNACEA:—Dogwood Family. 242. CORNUS, Tourn. [Cornel. Dogwood. | [898.] C. FLoriIDA, Linn. Flowering Dogwood. Western Ontario. Small tree ; semi-hardy ; flowers and fruit ornamental. [899.] C. NurraLtu, Audubon. Western Flowering Dogwood. B.C. Small tree ; recently planted ; flowers and fruit ornamental. [g02.] C. STOLONIFERA, Michx. Red-osier Dogwood. Pie... 2,3 Quer;Ont. ;5Man. :-NiW.T. Bex Shrub ; hardy. 137 > seh 158 THE OTTAWA NATURALIST. [oc6.] C. ALTERNIFOLIA, Linn. Alternate-leaved Cornel. N.S. NR. 3 Ques ue e Tall shrub or small tree: hardy. XLVI CAPRIFOLIACE A~— Hon ysuckle Family. 245. SAMBUCUS, Linn. [Elder.] [g09.] S. RAcEMosA, Linn. Red herrcd Elder. N: WT. 3- BE. Tall shrub; hardy ; fruit ornamental. VAR PUBENS, WATSON. N.S. ; N.B: 3. Que. ; Ont; Man.; -N-W.17- Tall shrub ; hardy ; fruit ornamental. [oro.] S. CaANaApENsIS, Linn. Common Elder. N.S. ; NEB); Que *-Ont.5 “Man. 5: RW. 7. Shrub ; hardy ; flowers ornamental. 246. VIBURNUM, Linn. [Arrow wood. ] [g12.] V. cassiNorpEs. Linn. NGS. NB. = Que-; Ont. “Man; NEWek: Tall shrub ; hardy. [913.] V. peNtaTuM, Linn. Arrow-wood. Ont. Shrub ; hardy ; leaves oanamental. [914.] V. PUBESCENS, Pursh. Downy Arrow-wooed. Que. ; Ont. ; Man. Shrub ; hardy. [o15.] V. acertFoLiuM, Linn. Mapie-leaved Arrow-wc od. Que.-; Ont. : Man.; N.W.T. Sirub ; hardy. [917.] V. Oputus, Linn. High-bush Cranberry. NS. ’; N.B.; Que: ;: Ont 3oifan: IN Wes. Tall shrub ; hardy ; fruit ornamental. 247. LINNZA, Gronov. [Twin-flower. ] [919.] L. BOREALIS, Gronov. Northern ‘Twin-flower N.S.; N.B.; Qde.;-Ont,; Man. 5 NW. tae Low creeping evergreen; shrubby; hardy; flowers ornamental. cen List oF NaTivE TREES, &c. 139 248. SYMPHORICARPOS, Juss. [Snow-berry. | - [g2t.] S. Racemosus, Michx. Snow-berry. eee Ni. : Oue.; Ont.; Man.; N.W.T.; B.C. Shrub ; hardy ; fruit ornamental. 249. LONICERA, Linn. [Honeysuckle. Woodbine. | [925.] L. SuLtivanti, Gray. (?) Ont.; Man. Twining shrub ; hardy; flowers ornamental. {y26.] I. GLauca, Hill. Smooth Honeysuckle. Ont; Man.; N.W:T. Twining shrub ; hardy; flowers ornamental. |927.] I.. invoLucrata, Banks. Beene. Ont.; Man.; N.W.T.; B.C. Shrub ; hardy. [928.] L. ciniara, Muhl. Fly Honeysuckle. eerie... (ue.; Ont.; Man.; N.W <1 .;, B.C. Shrub ; hardy. 250. DIERVILL\, Tourn. [Bush Honeysuckle. | [932.] D. rrRirips, Meench. eo. &.; Oue.; Ont.; Man.; N.W.T. Low shrub; hardy. XLIX. RUBIACEA— Madder Family. 252. CEPHALANTHUS, Linn, [Button-bush. | |934-] C. occipentauis, Linn. Button-bush. Que.; Ont. Shrub ; hardy. LV. VACCINIACE A:—Huckleberry Family. 349. VACCINIUM, Linn. [1355-] V. corymsBosuM, Linn. Diem 1 iN 2B. 5 Que. Low shrub ; hardy. [1359-] V. Myrtitius, Linn. Whortleberry. Bilberry. ie es Oe Low shrub ; hardy. 140 THE Orrawa NATURALIST. Zoology.—The Scientific Results of the “ Challenger Expedition. With text Illustrations and Plates II—XVII. Introduction, by E.- Raya Lankester, F. R.S. I: pg a ed and Navigation. By Staff-Captain T. H. Tizard, R. N., . RE wo II. Broa Circulation. By H. N. Dickson. III. Geology. Coral-Reefs. By Professor J]. W. Judd, C.B., F.R.S., V.P. G.S. Chemico-Biological Changes in the Ocean By Robert Irvine, F.R.S.E., iM CASE _ Marine Deposits. By John Chumley, of the ‘‘ Challenger” Office. IV. Botany. The Marine Flora. By George R. M. Murray, F.R.S,E., F.L.S. The Land Flora. By C. Baron Clarke, F.R.S., Pres. L.S. V. Zoology. (Introductory.) By Trofesser Ernst Haeckel, M,D., Ph. D., Hon. F.B.S.E. Expectations and Results. By P. Chalmers Mitcheli, M.A., F.Z.S. Foraminifera. By C. Davies Sherborn, F.G.S., F.Z.5. Radio'aria. By Professor Ernst Haeckel and A.V aughan Jennings, F.L.S., RaG As: Sponges. By Professor W. J. Sollas, M.A., D.Sc., LL.D., F.R.S., with note by Professor Haeckel. Coelentera. By Professor S. J. Hickson, M.A., D.Sc., F R.S., Professor FE. Perceval Wright, M.A., M.D., F.L.S., M.R.LA., P. Chalmers Mitchell, and Professor E. Haeckel. Echinoderma. By F. A. Bather, M.A., F.G.S., W. Percy Sladen, Y.P.L.S., F.G.S., Theodore Lyman, and Professor Hijalmer Tnéel. Annelida and Nemertea. By Professor W. C. McIntosh, M.A., LL.D PE Re os Arthropoda. By Rev, T. R. R. Stebbing, M.A., F.L.S., F. E. Beddard, M.A., F.R.S., T. Rupert Jones, F.R.S., Dr. P. P. C. Hoek, Memb. R. R:. Ac. Netherlands, R. I. Pocock, and G. H. Carpenter, B. Se. Mollusca. By Professor Paul Pelseneer, D.Sc., and W. E. Hoyle, M.A., MERIGS Eo RSS Be Brachiopoda. By A. F. Bather. Lryozoa. Hemichordata. By S. F. Harmer, M.A., B.Sc., F.Z.S. Tunicata. By Professor W. A. Herdman, DSc o he Vertebrata. By A. Smith Woodward, B.Sc., F.G. S., F.Z.S., R. Bowdler Sharpe, LL.D., F.Z.S., Professor Sir William Turner, M. B.. LD E.R-S.,, and Oldfield Thomas, erates VI. Anthropology. By Professor A. C. Haddon, M.A., M.R.LA., F.Z.S. Natural Science, Vol. VII, No. 41, pages 715s London, July I, 1895. (Special ‘‘Challenger Number” of ‘‘ Natural Science” may be ordered from Rait, Henderson & Co., Ltd., 22 St. Andrew street, Holborn Circus, London, England. Price : One shilling nett.) a NS Oye ee PM Pee ee, ah | er 7 a rn rs } a =)" eee - “ a ’ : . ~ OTTAWA, OCTOBER, 1895. No. 7. » LIST OF NATIVE TREES AND SHRUBS GROWING AT THE CENTRAL EXPERIMENTAL FARM, OTTAWA, JULY, 1895. By W. T. MAcoun. .- Being continuation and completion of the paper which appeared in No. 5 and No. 6 of the Ottawa Naturalist for August and September, 1895. (t364.) Vaccinium Vitis-Ipb@a, Linn. Cowberry, Cranberry. Ree neh. ; Oue.; Man.; N.W.T.; B.C. Low shrub ; hardy. | 6353. ARCTOSTAPHYLOS, Adns. (Bearberry.) (1370.) A. Uva-urs!, Spreng. Bearberry, Kinnikinick. mee. bs. 3 QOues5-Ont..5 Man. ; N.W.T.5 B.C. Low Shrub; hardy. 354. GAULTHERIA, Linn. (Aromatic Wintergreen.) (1375.) G. SHALLON, Pursh. Salal. British Columbia. Shrub ; recently planted. 359. CALLUNA, Salisb. (Heather.) -(1385.) C. vuLcaRis, Salisb. 25 5 N.B. . Low shrub ; hardy. 362. KALMIA, Linn. (American Laurel.) (1392.) K. Latirvoxia, Linn. Calico-bush. Reported in Labrador. Shrub; recently planted ; flowers ornamental. 142 THE Orrawa NATURALIST. (1393.) K. ancustiFo.ia, Linn. Sheep Laurel, Lambkill. NCS 23. Bes One; Gat, Shrub ; hardy ; flowers ornamental. - 364. RHODODENDRON, Linn. (Rose-bay, Azalea.) (1400.) R. viscosum, Torr. Clammy Azalea. Reported in Canada. Shrub ; hardy ; flowers ornamental. (1401.) R. NUDIFLORUM, Torr. Purple Azalea. Reported in Canada. Shrub ; hardy ; flowers ornamental. LXI. OLEACEAE—Olive Family. 388. FRAXINUS, Linn. (Ash.) (1455.) F. Americana, Linn. White Ash. Niow5 NEE s- Ones Ont. Large tree ; hardy. (1456.) F. puBESCENS, Lam. Red Ash or River Ash. N.S..; Que.5- Ont. f2Man: Tree ; hardy. (1457.) F. viripis, Michx. Green Ash. Ont. ; Man. ‘Tree ; hardy; (1458.) F. QuADRANGULATA, Michx. Blue Ash. Western Ontario. Large tree ; semi-hardy. (1460) F. samurcrroLia, Lam. Black or Swamp Ash. N:S); BBs One. sOnk Large tree ; hardy. LXXIII. BIGNONIACEA~—Bignonia Family. 464. TECOMA, Juss. (Trumpet-Creeper.) (1740.) T. RADICANS, Juss. Western Ontario. Woody climber ; semi-hardy ; flowers ornamental. List oF Native Trees, &c. 143 LXXXVII. LAURACEA — Laurel Family. _ 524. SASSAFRAS, Nees. (Sassafras.) (1919.) S, OFFICINALE, Nees. Western Ontario. Tree ; Semi-hardy ; ornamental. 525. LINDERA, Thunb. (Wild Allspice.) (1920.) L. BENzoin, Meisner. Spice Bush. Ontario. Tall shrub ; semi-hardy, leaves and flowers ornamental. LXXXVIII. THYMELA*:ACEA:—Mezereum Family. 527- DIRCA, Linn. (Leather-wood, Moose-wood.) (1922.) D. paLustris, Linn. N.B. ; Que. ; Ont. Shrub ; hardy ; ornamental. LXXXIX. ELAAAGNACEA—Oleaster Family. 528. ELAZSAGNUS, Linn. (Silver Berry.) (1913.) E. ARGENTEA, Pursh. ue, cut. - Man. ; N.W.T. ;B.C. Tall shrub; hardy ; leaves ornamental. 529. SHEPHERDIA, Nutt. (Shepherdia.) (1924.) S. CANADENsIs, Nutt. Canadian Shepherdia. mae auc: Ont,; Man. ;:-N.W.T.; BC. Shrub ; hardy ; fruit ornamental. (1925.) S. ARGENTEA, Nutt. Buffalo-Berry. Man. ; N.W.T. Shrub ; hardy; fruit ornamental. XCIII. URTICACEA.—Nettle Family. 535- ULMUS, Linn. (Elm.) (1946.) U. ruLva, Michx. Slippery or Red Elm. Que. ; Ont. Large tree ; hardy. - seit sth abate led 144 Tue OrrawA NATURALIST. (1947.) U. AMericana, Linn. American Elm, Nios NIB. } Oue, 2 Ont.° Mank. ae We Large tree ; hardy. (1948.) U. RaceMosa, Thomas. Rock Elm. Que. ; Ont. Tree; hardy. 530; MeRIGTIS: finn, V(Nettle. ines) (1949.) C. OCCIDENTALIS, Linn. Sugar-Berry. One. Ont. Tree ; hardy. 539: MORUS, Linn. (Mulberry.) (1952.) M. RuBRA; Linn. Red Mulberry. Western Ontario. Small tree ; hardy. XCIV. PLATANACEA:.—Plane-Tree Family. 545. PLATANUS, Linn. (Button-Wood.) (1963.) P. occIDENTALIS, Linn. Western Ontario. Large tree ; hardy ; leaves ornamental. XCV. JUGLANDACEA.—Walnut Family. | 546. CARYA, Nutt, (Hickory.) (1964.) C. aLBa, Nutt. Shell-bark Hickory. Que Ont Large tree ; hardy. (1966.) C. porctna, Nutt. Pig-nut or Brown Hickory. Western Ontario. - Tree ; recently planted. (1967.) C. AMARA, Nutt. Bitter-nut Hickory. Que. ; Ont. Tree ; hardy. List oF Native Tress, Xe. 145. 547 JUGLANS, Linn, (Walnut.) 7 (1968.) J. CINEREA, Linn. -Butternut. x Que. ; Ont. : Large tree ; hardy. (1969.) J. NiGRA, Linn, Black Walnut. Western Ontario. Large tree ; hardy. XCVI. MYRICACEA:—Sweet Gale Family. 548. MYRICA, Linn. (Wax Myrtle.) (1970.) M. Gag, Linn. Sweet Gale. mesos Nb. ; Que. ; Ont. ; Man. ; N.W.T.; B.C. Shrub ; Hardy. XCVII. CUPULIFERA:.— Oak Family. 1 °F whan! thes a - 549. BETULA, Linn. Birch. - (1974.) B. LenTa, Linn. Cherry or Black Birch. N.S. ; N.B.; Que.; Ont. Large tree; hardy. (1975-) B. LuTEa, Michx. Yellow Birch. feo.; N.B.; Que. ; Ont. z Large tree ; hardy. (1977.) B. PAPYRIFERA, Michx. Canoe Birch. = mee > Oue, ;-Man. 5 N.W.T.; B.C. Large tree ; hardy. .¢ (1978.) B. occipENTALIS, Hooker. Western Birch. mW L.; BC. Tree ; hardy. (1879.) B. pumiLa, Linn. Low Birch. Mus..5 0.1. - Oue. > Ont. ; Man. ; N.W.T. t Shrub ; hardy. "550. ALNUS, Gartn. (Alder.) - (1985.) A. 1ncana, Willd. Common Alder. bd mad: 5 NB. ; Que. ; Ont. ; Man. ; N.W.T. Tall shrub or small tree ; hardy. vs wean. ‘ 146 THe Orrawa NATURALIST. (1986.) A. viripis, DC. Green Alder. N.S.4;N.B: 3 Que. ;“Ont.; Man. * N;W.1., Bae Tall shrub ; hardy. 551. CARPINUS, Linn. (Hornbeam.) (1987.) C. CaroLiniana, Walter. Blue Beech. Que. ; Ont. Tree ; hardy. 552. OSTRYA, Scop. (Ironwood.) (1988.) O. Vircinica, Willd. Lever-wood. N55 ON. b.o’Oue.5 One Tree ; hardy. 333. CORYLUS, Linn. (Hazel-nut.) (1989.) C. RosTRATA, Ait. Beaked Hazel-nut. NS. 5) Ni Bs Que:.;! Ont.3. Man.5°N-W.d,;, Bae Shrub ; hardy. (1990.) C. AMERICANA, Walt. Wild Hazel-nut. Ontss Man. > IN.W.a. Shrub ; hardy. 554- QUERCUS, Linn. (Oak.) (1991.) Q. ALBa, Linn. White Oak. Que. ; Ont. Large tree ; hardy. (1994.) Q, MACROCARPA, Michx. Mossy-cup Oak. NB. Que. Ont. = Man. ewe. Large tree ; hardy. (1996.) Q. Prinus, Linn. Rock Chestnut Oak. Western Ontario. Tree ; hardy. (1997-) Q. pRiNoIDEs, Willd. Yellow Oak, Chestnut Oak. Ontario. Tree; hardy. (1998.) Q. RUBRA, Linn. Red Oak. N.S..; N.Bi; Que." Ont Large tree ; hardy ; leaves ornamental in Autumn, List or Native Trees, &e. 147 (1999.) Q. coccinEA. Wang. Scarlet Ouk. Ontario. Large tree ; hardy; leaves ornamental in Autumn. (2000.) Q. TINCToRIA, Bartram. Yellow Oak. Western Ontario. Large tree ; hardy. (2001.) Q. PALUSTRIS, Du Roi. Pin Oak. Western Ontario. Tree ; hardy 555: CASTANEA, Gertn. (Chestnut.) (2002.) C. vuLGaRIs, Var. AMERICANA, A. DC. Western Ontario. Large tree ; hardy. 556. FAGUS, Linn. (Beech.) (2003.) F. FERRUGINEA, Aiton. American Beech. Poy 1¥.b:;:Que.; Ont. Large tree; hardy ; leaves ornamental in Autumn. ACVIII. SALICACEA:— Willow Family. 557. SALIX, Linn. Willow. (2012.) S. cANDIDA, Willd. Hoary Willow. Meese scont.; Man.; N.W.T.; B.C. Tall shrub ; hardy. (2015.) S.corpata, Muhl, Heart-leaved Willow. Betas. b.5 Que: 7 Ont’; Man. ; N.W.T, ;-B.C. Tall shrub or small tree ; hardy. (2016 ) S. piscoLor, Muhl. Glaucous Willow. Seas Nos. = One.; Ont.; Man. ; N.AWV.T. Tall shrub or small tree ; hardy. (2024.) S. HuUMILIS, Marshall. Low Willow. g Mess NB. ; Oue.; Ont. Shrub ; hardy. 148° Tue Orrawa NATURALIST. (2028.) S. Lucipa, Willd. Shining Willow. N.S: :: N.B.;. Ques; Ont; Mans. *NWet. > Tall shrub or small tree; hardy ; leaves ornamental. (2048.) S. TRISTIS, Ait. Nova Scotia. Low shrub ; hardy. 558. POPULUS, Linn. (Poplar.) (2053.) P. TREMULOIDES, Michx. Aspen. N.S. = N.B. 3 Que.; Ont; Man.; NW.T. 5 Be: Wree > hardy. (2056.) P. ANGUSTIFOLIA, James. Black Cottonwood. N.W.T: Tree ; hardy. (2o58.). P. MONILIFERA, Aiton. Cottonwood. Que: ; ‘Ont.5 Man. 7 NOW: Large tree ; hardy. CI. CONIFERA:—Pine Family. 562. THUYA, Linn. (Arbor-Vite.) (2062.) T. occCIDENTALIS, Linn. White Cedar. N.S) > N.B.; .Oue: » Ont 3-Man: SWI Tree ; hardy ; ornamental. 563. JUNIPERUS, Linn. (Juniper.) (2067.) J. Vircintana. Linn. Red Cedar. Nis. Quel. Gat, Tree ; hardy ; ornamental. (2068.) J. communis, Linn. Common Juniper. N.S.:3 N.B. 3 Ques; Ont.4°Man. = N Wet eee Shrub ; hardy. 564. TAXUS, Linn. .(Yew.) (2071.) T. paccata, L. var CANADENSIS, Gray. American Yew. q9.S. 3 N, Box Quen Ont, Bian Shrub ; hardy. _ List or Native Trees, Xe. 149; 565. PINUS, Linn. (Pine.) (2072.) P. Srrosus, Linn. White Pine. N.S. ; N.B.; Que. ; Ont.; Man. Large tree ; hardy ; ornamental. _ (2076.) P. REsINOS!, Aiton. Red Pine. Biss Nd. 5 Que. ;- Ont. Large tree ; hardy ; ornamental. _ (2077.) P ponpeRosa, Dougl. Heavy-wooded Pine. British Columbia. Large tree ; hardy ; ornamental. (2079.) P. Murrayana, Balfour. Black Pine. mad. ; BC. Tree ; hardy ; ornamental. (2080.) P. RiGiDA, Miller. P.tch Pine. me; Oue, ; Ont. Tree ; hardy. §66. PICEA, Link. (Spruce.) “(2082.) P. nigra, Link. Black Spruce. Bes 5; NiB?;-Quey; Ont; Man.; N.W.T.; BC: Tree ; hardy ; ornamental. _. (2083.) P. avpa, Link. White Spruce. Pe. Nb. > Que:; Ont,;:Man.; N.W-T: Tree ; hardy ; ornamental. (2084.) P. ENGELMANNI, Engelm. Engelmann’s Spruce Ws 5. B.C. Large tree ; hardy ; ornamental. 567. TSUGA, Cass. (Hemlock. ) (2086 ) T. CANADENSIS, Carr. Hemlock. PS. >, eB. 5 Que. ; Ont. Large tree ; hardy ; ornamental. 150 THE Orrawa NATURALIST. 568. PSEUDOTSUGA, Carr. (Red Fir.) (2089.) P. DouGcLAsnu, Carr. Douglas Fir. - NAW4 6 BG: Large tree ; hardy ; ornamental. 569. ABIES, Juss. (Balsam.) (2090.) A. BALSAMEA, Miller. Canada Balsam Fir. N.S: N2B. 5 Oue-; Ont; Mans NWT: Tree ; hardy ; ornamental. (2019.) A. SUBALPINA, Engelm. Mountain Balsam. INS Wied SBC: Tree ; hardy ; ornamental. (2083.) A. AMABILIS, Forbes. White Fir. British Columbia, Tree ; hardy ; ornamental. 570. LARIX, Mill. (Tamarack, Larch.) ; (2094) L. AMERICANA, Michaux Tamarack, Black Larch. NS: 5 NB One. ; Ont = Man: * Newer. Tree; hardy ; ornamental. EXCURSION NO. 3. The last field day of the O. F. N. Club for the season of 1895 was held, as announced, on 14th. September. The objective point was the Paugan Falls on the Gatineau River near Low Station, about 40 niles from Ottawa. About 120 members and friends of the club were present, but there was a dearth of leaders of sections, and owing to this cause and the rapidly advancing autumn, the collection of specimens made was unusually meagre. Qa the reassembling of the party in the afternoon, however, and after a short introductory address by the president, Mr. F. T. Shutt, M. A, the leaders in Botany discussed the flowers and plants collected, Mr. R. B. Whyte giving particular regard to the composite to which order as he pointed out most of the autumn flowers belonged Mr. Craig drew attention to the number and variety of the coniferous trees standing near and made some interesting remarks upon their nature and uses. After a short address by Mr. R. H. Cowley upon the importance of natural history studies in education, the train for home drew up, and the party reached Ottawa at 8 p. m. GEOLOGICAL Society oF AMERICA. 151 GEOLOGIGAL SOCIETY OF AMERICA, SPRINGFIELD, MASS., 1895. Abstracts and Titles of Papers Read at the August Meeting. 1. On the Glacial Deposits of South-western Alberta, in the Vicinity of the Rocky Mountains. By George M. Dawson and R. G. McConnell, Ottawa, Canada. This paper presented the facts obtained during a recent examination of the glacial deposits of a portion of the south western of the Canadian Great Plains, in the foot-hills and along the base of the Rocky Mountains, where phenomena of par- ticular interest are met with in connection with the relations of the western and eastern drift. (Cordilleran and Laurentide.) A brief summary of previous ob- servations is followed by a description of sections along two main lines of approach to the mountains at relatively low levels and an examination of the conditions sur- rounding the glacial deposits at the highest levels, found in the form of terraces with rolled shingle at 5,300 feet on the Porcupine Hills. In conclusion, the observed facts are briefly discussed, attention being practically confined to the particular - region treated in the body of the paper. 2. The Champlain Glacial Epoch. By C. H. Hitchcock, Hanover, N. H. The Champlain was a true glacial epoch, when the land was considerably de- pressed. Glaciers from the north and south discharged bergs into an estuary. The fauna was arctic. Moraines and both the marine and fluviatile clays covered till of an earlier ice-sheet. It is possible to harmonize the conflicting theories of glacial and ice-berg action by referring the greater ice-sheets to the earlier, and the floating ice phenomena to the later, Champlain epoch. 3. Drumlins and Marginal Moraines of Ice-sheets. By Warren Upham, Cleve- land, Ohio. ¢. The Glactal Genesee Lakes. By Prof. H. L. Fairchild, Rochester, N. Y. The direction, inclination and extent of the Genesee Valley made possible the production, during the retreat of the ice-sheet, of a succession or glacial lakes with different outlets. The paper described, with the aid of a map, (1) the present topo- graphy and hydrography of the valley, (2) the ancient drainage channels, (3) the complex lacustrine phenomena. 5. The Archean and Cambrian Rocks of the Green Mountain Range in Southern Massachusetts. By Prof. B. K. Emerson, Amherst, Mass. Description of a series of Archean anticlines partly overturned aid cverthrust westward, and of the uniformity of the Cambrian conglomerate gneiss upon the old rocks. 6. The Triassic in Massa*husetts. By Prof. B. K. Emerson, Amherst, Mass. The stages of deposition and deformation of the sandstones and the relations of the effusive traps and tuffs and the intruded traps to the sandstones. 7. Notes on Relations of Lower Members of Coastal Plain Series in South Carolina. By Mr. N. Darton, Washington, D.C. 152 THE Orrawa NATURALIST. 8. Resume of General Stratigraphic Relations in the Atlantic Coastal Plain from New Jersey to South Carolina. By Mr. N. A. Darton, Washington, D.C. g. Cretaceous Plants from Martha’s Vineyard. Results Obtained from an Examz- tnation of the Material Collected by David White in 1889. By Mi. Arthur ‘Hollick, New Brighton, N. Y. * zo. On Asbestos and Asbestiform Minerals. By Dr. George P. Merrill, Washing- ton, D.C. ; The paper treats of the composition, mode of occurrence and mincralogical nature of the various minerals commercially grouped under the name of asbestos, and attempts to expluin their fibrous. structure as due to abnormal elongation of the mineral parallel to the vertical axis, the individual fibres being in part at least. by prismatic faces, that is by the planes of easiest cleavage. The primary cause of this elongation is believed to be mainly dynamical, a result of shearing and other earth movements such as are prcductive of uraltic hornblendes, schistosity or even slaty structure and slickensided surfaces, where actual fracturingiakes place. zz. Pre-Cambrian Volcanoes in Southern. Wisconsin. By Prof. Wm. H. Hobbs, Madison, Wis. - A preliminary report on the study ofa group of isolated areas of igneous rocks which protrude through the Potsdam sandstone in the valley of the Fox River, Wis- consin. Some of these areas represent local outflows of rhyolitic lava which exhibits superb examples of spherulitic, peritic, fluxion, and breccia structures. The origin- ally glassy ground mass of these rocks has become devitrified—-hence they are apo- rhyolites, and they have been subjected to dynamic metamorphism and subsequent infiltration of silica. They are intruded by dikes of both basic and acid rocks. Specimens and photographic sections were exhibited. 12. A Geological Sketch of the Sierra Tlayacac, in the State of Morelos, Mexico. By Paoy. A. Capen Gill, Ithaca, N. Y. 13. Syenite-Gnetss (Leopard Roch) from the Apatite Region of Ottawa bert Canada. By C. H. Gordon, Beloit, Wisconsin. The rock here described appeared in the exhibit of the Canadian Geological Survey, at the World’s Fair under the title of ‘* Concretionary Veinstone,” from the apatite region. It consists of irregular ellipsoidal or ovoid masses of feldspar. with more or less quartz, separated by narrow. anastomosing bands of interstitial material consisting chiefly of green pyroxene. The ellipsoidal masses are of all sizes up to two or three inches in cross section, and several inches long. The field study at High Rock Mine, Ottawa County, shows this rock to occur in dikes intersecting the pyroxenites and quartzites. In some places the rock is very coarse with no indications of the ellipsoidal structure, while in others it isa distinctly banded gneiss whose identity with the ellipsoidal rock is evident from the anastomosing of the augite bands on a cross fracture face. Ordinarily the rock has very little quartz and corresponds to a pyroxene-syenite, but in some places the quartz is much more abundant thus allying it tothe pyroxene-granites. In view of its gneissic structure and usually sparing amount of quartz the rock is here referred to generally as syenite-gneiss, though grading locally into forms which may more fittingly be regarded as granite-gneiss. The presence of a distinct gneissic microstructure, taker in connection with other facts appears to establish the conclusion that the peculiar ellipsoidial structure is due to orographic forces acting upon a coarsely crystallized rock in which principal constituents (feldspar and pyroxene) are more or less irregularly distributed. The breaking of the rock under pressure has been attended by the recrystallization of the MV 7 Be F = 4 i f a i f- iz GEOLOGICAL Society oF AMERICA. ‘163 augite and other constituents along the original fracture planes, which were probably, in part, determined by the arrangement of the two chief constituents. The points of interest brought out in the study are: (1) that this peculiar dis- tribution of the pyroxene is due to dynamic processes, (2) the importance to be at- tached to the process of solution and recrystallization in the formation of gneisses, (3) the significance of the original character of the rock with reference to the product derived from it by dynamic processes, and the differences resulting from variations in the extent to which it has been affected by orographic agencies, and (4) the evidence showing the derivation of a gneiss out of a syenite, and establishing the term syenite- gneiss as the name of a distinct rock type. ; 44. The Titaniferous Iron Ores of the Adirondacks. Prof. J. Kemp, New York City. The paper opens with a brief statement of the characters of the two kinds of iron ores which are attorded by the region, the merchantable magnetites and the titani- ferous. The former are in gneisses; the latter in the gabbros and anorthosites of the Norian, which are believed to be intruded through the gneisses, A list of localities of the titaniferous ores is given and distinction is made between the smaller bodies which are, so far as can be seen, basic developments of gabbro, and the enor- mous ore bodies at the old Adirondack Iron works, in the heart of the mountains. These latter are in massive, anorthosite, which is almost entirely formed of large, blue-black crystals of labradorite. The largest ore body, which is the one crossing Lake Sandford, contains numerous included labradorite crystals, each of which is surrounded by a reaction rim 5-10 mm. across. It is further shown that the wall rocks show no signs of the widespread crushing that is exhibited in the general “*mortar-structure’’ of the Adirondack and Canadian anorthosites but are plutonic rocks, free from evidences of dynamic metamorphism. The argument is then made ‘that the ores are segregations from an igneous magma formed during the process of cooling and crystallization. 15. The Decomposition of Rocks in Brazil. By J. C. Branner, Stanford, Unt- versity, Calif. 46. The Bearing of Phystography on Uniformitarianism. By Prof. W M. Davis, Cambridge, Mass. The conditions and processes postulated in the physiographic study of land forms—Geomorphology of some authors—are among the cardinal principles of uni- formitarianism. The success in.the interpretation of nature by means of this kind of study confirms the correctness of its postulates, and thus brings to the support of uniformitarianism a large class of facts, whose bearing on this theory was not at all perceived when its early advocates announced it. 17. Analysis of Folds. By Prof. C. R. Van Hise, Madison, Wis. As ordinarily treated folds are considered as simple flexures in two dimensions. As they occur in nature folds are compound flexures in two dimensions. The anal- ysis of simple folds given by Margerie and Heim is summarized. For the sake of simplicity folds are first treated in two dimensions. A composite fold is produced by the combination of various simple folds. Composite folds include both normal composite folds and abnormal composite folds. The genesis of each is discussed, and each is classified into upright, inclined, and overturned anticlinoria and synclinoria. When composite folds are cross folded, these are called complex folds. The character and origin of complex folds are discussed. Rules are given for observation in regions which are folded in a complex manner. The use of folds in the discovery of unconformity and the secondary changes which accompany folding are summarized. ina 154 THE Orrawa NATURALIST. NOTES, REVIEWS, AND COMMENTS. Entomology. —*FraiL CHILDREN OF THE AiR. Another of Mr. Scudder’s delightful books has just come to hand, with the above pretty title. It isa tastefully bound 8vo. of 279 pages. containing 31 short chapters, 9 plates, on the habits and structure of butterflies, written in a graceful, but clear and popular, style, which will make the book entertaining to many who have never taken any special interest in butterflies and will, we believe, realise the author’s hope, expressed in the preface, ‘gain for our butterflies a deeper interest and closer | attention on the part of the observing public.”. This is really an excellent selection from a series of papers which ran through Mr. Scudder’s large and costly work, ‘“‘ The Butterflies of the Eastern United States and Canada,” and, although forming a ‘consistent whole,” each chapter is complete in itself. The following titles of some of the subjects treated will give a slight idea of the scope of this attractive little volume: —Butterflies in Disguise, Butterflies as Botanists, Butterfly Sounds, The Eggs of Butterflies, How Butterflies pass the Winter, Protective Colouring in Caterpillars, The Procession of the Seasons, Some Singular Things About Caterpillars, The Friends and Associates of Caterpillars, Butterflies of the Past. J. FLETCHER. Geology.—RECENT PUBLICATIONS :— 1. CLAYPOLE, Pror. E. W.—‘ Giactal Notes from the Planet Mars.” American Geologist, Vol. XVI, No. 2 pp. 91—100, August, 1895. 2. UPHAM, WARREN.—“ Correlations of Stages of the Ice-Age in North America and Europe.” Ibid, pp. 100—113. . Jameson, Cuartes D.—“ Portland Cement,” “a monograph.” The Transit: Vol. III; No. 1, 192 pp. Iowa City, 1895. 4. RANSOME, Pror. F. LESLIE.—‘‘ On Zawsonite, a New Rock- Jorming Mineral from the Tiburen Peninsula, Marin Co., California.” Bull. Dept. Geol. Univ. Calif. ; Vol. I, No. 1c, pp 301 —312, pl. 17; Berkeley, May, 1895, f Lawsonite is nained in honor of Prof. A. C. Lawson, M.A., Ph D., etc., etc., Professor of Geology in the University of California, and formerly on the staff of the Geological Survey of Canada. WwW *Frail Children of the Air—Excursions into the World of Butterflles—By Samuel H. Scudder, Cambridge. Mass. $1,50. Nores, Reviews aND CoMMEN’s. 155 7 5. VocpEs, A. W.—“ A Supplement to the Bibliography of the Paleo- zoic Crustacea.” Extr. Proc. Cal. Acad. Sc., Ser. 2, Vol. V., Pp. 53—76. 6. MatTHeEw, Dr. G. F.—Oxn the Organic Remains of the Little River Group, Nos. ILand III. ‘I'rans. Roy. Soc. Can. Section IV, pp. 89—111, plate 1, figs. 1 to11. Eight new species and one new genus are herein described for the first time from the “ Devonian ” ot New Brunswick, as follows : INSECTA : 1. Homothetus erutus, n.sp. MYRIAPODA : 2. Palzocampa (?) obscura, n.sp. 3. Euphoberia atava, n.sp. 4. Eilaticus (?) antiquus, n.sp. 5. Hyodes (?) attenuata, n.sp. 6. Chilopus dubius, n.g. et. sp. ARACHNOIDEA: 7. Paleophorus arctus, n.sp. PULMONIFERA ? 8. Pupa primzva, n.sp. Besides the above Dr. Matthew also fisures: Loscorpius carbon- arius, Meek and Worthen, from the Carboniferous of Illinois : Paleophonus nunctus, Yhorell and Lindstrom, from the “ Silurian” of Sweden, and a species of Luphoberia, from Plant Bed No. 2. The whole is a most valuable contribution to science. .H. M. Amt. 7. WINCHELL, Pror. N. H.—‘ 4 Rational View of the Keweenawan.” Amer. Geol., Vol. XVI, No. 3, pp. 150—162, Sept, 1895. This forms the seventh article of a series on ‘‘Crucial points in the Geology of the Lake Superior Region” by Prof. Winchell. 8. BEECHER, Dr. CHARLES E.—‘‘ The Larval Stages of Trilobites.” Lbid., pp. 166 to 1y7, Plates VIII—X. In this important contribution to our knowledge of the trilobites in their earliest stages, Dr. Beecher shows that ‘‘all the facts in the ontogeny of trilobites point to one type of larval structure.” To the earliest larval stage, the name “ fvofaspis stage,” isgiven. Then follows a review of larval stages of trilobites, derived from such forms as ' Solenopleura robbi, Hartt; Liostracus ouargondianus, Hartt ; Ptycho- paria lunnarssoni, Walcott; Ptychoparta kingt, Meek; Sao hirsuta, Barrande ; TZriarthrus becki, Green; Acitdaspis tuderculata, Conrad ; _ Arges consanguineus, Clarke; Proétus parviusculus, Hall; Dalmanttes _-socialis, Barrande. a | rea 156 Tue Orrawa NATURALIST. Conchology. — A large land shell, new to the Ottawa list, was found at Casselman on May 23rd. It is Helix palliata. Three specimens were found, one west of «the South Nation river, and two on the east side, below the falls, in the woods where the beautiful Ph/ox divaricata was then in full bloom. H, palliata is about three quarters of an inch in diameter, and — differs from 1. dentifera, which it most resembles in general appearance, in having the upper lip prolonged inward at two points into what are commonly called ‘“‘teeth”. A similar process is formed upon the body ~ whorl. These projections permit the soft tissues of the builder to pass, but oppose a pearly barrier to beetles and other enemies who would intrude upon the dweller within. The three teeth on the shell of & palliata and other American land shells have been considered a peculiarity sufficiently distinctive to warrant the grouping of such species in a sub-genus, under the name Z7zodopsis. The study of the inhabitants of the shells grouped under this term has shown that many are less closely allied to other ¢rodopses than they are to the mesodons, — or shells of which H. albolabris and H. thyroides, also found at Cassel- man, may be regarded as the types. The shell alone can, in fact, be seldom relied on in arranging a natural classification of moliuscs. CASSELMAN SHELLS—A mere list of names is dry reading at best, and is of little interest to the general reader. In years to come, however, THE NATURALIST will be referred to, to ascertain what plants or shells at a particular time occurred in certain places. Any record, therefore, is likely to be of some — use: At Casselman on May 23rd and 24th, a number of shells were noticed. No great effort was made to collect anything but what caine in the way of a few members of the Club, while on a botanical excursion. This may account for the absence from the following list of such shells as 4. dentifera and H7. thyvides, which are known to occur at Casselman. ‘The species noted were :— Helix albolabris, HZ. sayt, H. palliata, H. alternata, H. concava, H. monodon, H. nitida, H. arborea, H. radtatula, H. fulva, H. striatella, H. pulchella, Hl. binney- ana, Succinea ovalis, S. obliqua, Vitrina limpida, Limax campestris, Teb. Carolinensis, Vertigo ovata, Fer. subclindrica, Carychium exiguum, Gon. livescens, Camp. decisum, Limnea palustris, L. caperata, Physa heteros- tropha, P. billingsit, Planorbis trivolvis, Pl. bicarinatus, Pl. parvus, Aucylus parallelus, Unio complanatus, U. luteolus, Anodanta fluviatilis, Sphaerium sulcatum, S. occidentale, Pistdium abditum. L. Tue OtTrawa NATURALIST. VoL. IX. OTTAWA, NOVEMBER, 1895. No. 8. HOW ROCKS ARE FORMED. By R. W. Exts, LL.D, F.R.S.C. of the Geological Survey of Canada. Before taking up the general subject of rock formation, which in the limited time at my disposal, can only be touched upon in the ' briefest possible manner, we may for a moment glance, first of all, at some of the theories which have been put forth to account for the formation of the earth itself, in order that we may obtain a good starting point or ‘acquire some idea of the conditions under which the foundations of the earth’s crust were laid down, upon which the many thousands of feet of rock material which are known by the names of sandstone, slates, shales and limestones have been deposited. Many theories have been put forth to explain the formation of the earth and to account for the tmany changes which transpired thereon before it became fitted for the advent of animal and plant life. Of these some are of interest from their legendary character, while others, regarded from the standpoint of modern science, present many features not reconcilable with the knowledge of the present day, and are of value, chiefly as illustrating the crude ideas that prevailed on this subject, prior to the advent of the present century. But few of the propounders of these theories made any attempt to approach so complicated a prob- lem from a purely scientific standpoint. It must be borne in mind that the scientific study of the earth’s crust is a matter of comparatively recent date, and our present knowledge is the result of very careful study, both in the field upon the rock masses themselves and in the laboratory, in which the science of chemistry and the microscope have played very important parts. According to the theory now most generally accepted regarding the formation of the crust of the earth, viz., that of Laplace, there un- 158 THe Orrawa NATURALIST. _ doubtedly was a period in its history when rock structure, as we now know it, did not exist. This theory, which is commonly styled “ the nebular hypothesis,” most completely satisfies all the Conditions required__ and may be briefly stated thus. It supposes that in the beginning the universe existed simply in a state of cosmic ether ; that this in process of time gave off immense masses to which a rotary motion was imparted through various forces ; that from these whirling masses large rings were separated, which by rupture and gradual condensation gradually assumed a spherical shape, as a consequence of the rotary movement, till at length the solar syste-n, with its central sun and accompanying planetary bodies was evolved. The cosmic matter, in process of time cosled down sufficiently to produce a crust, composed of various mineral constituents ; and the cooling and hardening of the earth’s mass proceeded either from the centre as a nucleus outward or by a gradual thickening of a first formed crust inward. Several theories have been proposed to explain this stage of the earth’s history, but the greater number of physicists and geologists at the present day regard the globe asa more or less solid mass with areas of liquid matter at various points throughout the interior. Be that as it may we can Safely say that the first rock material was produced by the gradual decrease in temperature of the original nebular mass, and in this way a foundation was laid down for the subsequent deposition of rock material, for the introduction of living organisms, and — finally for the advent of man himself. | From a careful examination of many portions of this crust which have been brought to the surface either by denudation of overlying formations or by the extrusion of liquid matter, as in the case of volcanoes, it has been ascertained to be composed of a number of simple or undecoraposable substances or elements of which about seventy have now been recognized. Of these the greater part apparently exist in very limited quantity, while the main mass of the crust is made up of a few easily recognized compounds formed from the union of two or more simple elements. The most abundant of these is silica which is the result of a chemical union of silicon and oxygen, and this constitutes more than half the mass of the earth’s rust. ‘The other principal elements which enter into its composition re carbon, sulphur, hydrogen, chlorine, phosphorus and fluorine. All these are styled metalloids while among the metals are aluminum, a: Icium, magnesium, potassium, sodium, iron, manganese and barium. Having thus secured a solid rock floor, of which we have most excellent illustrations in the range of Laurentian hills to the north of the river Ottawa, great portions of which presumably represent some of » our first formed rock, the next development presumably was the precipita- tion of water,through the chemical union of the oxygen and hydrogen which entered largely into the composition of the gaseous envelope surrounding the newly created earth. From the geologist’s standpoint, this may almost be regarded as our next rock formation ; for throughout e whole subsequent history of the earth’s devlopment, down to the present day, water has played a very important part. Gradually the watery envelope increased till, possibly, it swept resistless around the entire globe. By degrees, through the cooling and shrinking of the Tust, ridges would be produced which formed barriers against which the mighty waves beat with the terrible force of the primeval ocean surge, tearing down and grinding to powder the newly formed coast line, and in this way the conditions were furnished by which the great thickness of the sedimentary formations which form so instructive a field of study to the working geologist, was laid down. Taking this then as our starting point in geological time we may ay that the greater part of the subsequent formations, as we now know them, was produced through the agency of fire or water. _—‘ By the first we mean that certain portions of the earth’s crust have been brought to he surface by means of volcanoes or great fissures in its surface, through which the liquified interior rock issued. ‘These rocks are therefore known as igneous or volcanic, and are styled intrusive when the liquid has solidified before reaching the surface as in the case of granites, syenites &c., or eruptive when the intrusive matter has cooled or hardened after reaching the surface. Among these latter are the didrites, traps and volcanic ejectamenta generally. There is however a manifest difference in the character and composition of these two groups, the latter being ofen darker hued and finer grained, the 160 Tue Orrawa NATURALIST. difference in texture being probably due to more rapid crystallization or cooling just as in the case of solutions of salt, sugar, alum &c., where we find that the slower the cooling the larger the grain of the crystal. These rocks, since they penetrated the oldest of the sedimen- tary formations, by which term we mean those which have been laid down by the action of water in some form may be regarded, as representing | in some cases at least, certain portions of the original mass or crust of the earth. The sedimentary or aqueous rocks are composed largely of grains of sand or often of pebbles, cemented together by sandy or calcareous particles. These grains of sand and pebbles have been derived from pre-existing rocks which in the first place presumably formed the first floor, and which have been broken down and reduced by the action of © the elements, such as the force of waves, the rush of streains, the infil- tration of rains or the action of frost. In addition to the beds of sandstone and conglomerate, others, composed largely of calcareous matter, in which the presence of organisms, as shells, plants, etc., can be recognized ; as can be seen in the inany quarries in the vicinity of this city, where they extend over large areas, while yet others, com- posed of fine material, such as mud and silt, now occur as shales, and are easily recognized in the dark brownish or greyish material which is dug up in many of our streets or seen along the banks of the Rideau and Ottawa Rivers. The manner in which many of these sedimentary rocks have been — produced can be readily seen by any one who has ever studied, in the slightest degree, the action of water upon our sea coasts, lake shores, or along our river courses. Thus it will be observed that a coast line — is generally composed of masses of rock jutting out here and there in the form of cliffs or projecting points. These are separated by stretches of beach or low shore in which rock ledges are frequently absent,. but which are composed of sand, gravel, mud, clay or boulders. These have been produced by the long continued action of wave or current against the rocky barriers, the force of which, by mechanical impact, . tends to break down the mass of the cliff into scattered blocks and distribute them about its base. Subsequent rolling and dashing Be eM 4 - ’ ~ How Rocks are Formep. 161 ag ainst each other gradually reduce these to a state of sand or clay, and in this way are produced the materials which make up the sands’ones ‘and conglomerates. These, by the various changes which are taking ‘place in the earth’s surface, become buried under other deposits and are acted upon by the agencies of heat, pressure and other causes till they become firm and enter into the solid constituents of the earth’s crust. The softer muds and silts of the beach also undergo a change. and pass into shales. This material is deposited under quieter con- ditions, in sheltered bays or creeks, where the finer earth particles held in water, are gradually deposited. Shales pass into slates through the ‘formation of cleavage planes which have been induced by pressure in the shaly mass, and by hardening through metamorphic agencies. Wherever organic life has existed on the beach or shore, these remains gradually become entombed and we now fird the impression of the long extinct bird, fish, plant or insect, often so perfectly preserved that the ‘most delicate points of structure can be readily determined. These Organic remains are found to vary in character at different horizons, so that what are found in one rock series often do not appéar in others more recent; and upon this peculiarity of distribution, paleontologists and geologists have built up a scheme of rock formations, which com- prises all the sediments from the Laurentian time or the original deposi- tion of the earth’s crust, down to the present day, each division of which is distinguished by certain fossil forms peculiar in large part to itself. In this way we can depict the whole life history of the globe, from the advent of the first forms, through plant, fish, bird, reptile, etc., to the mammalia, and up to the highest type of all the genus Homo, or 7 man himself. ) While, however, sedimentary rocks are deposited as sands, clays or calcareous matter in generally horizontal attitudes, such as we see in the strata surrounding this city, very frequently these strata are tilted at all angles, and in some cases completely overturned. This change in position is accompanied often by a change in the character of the original sediments, and is due to some agency, either of contraction or shrinking of the crust or to dislocations which have produced crumplings, upheavals, displacements, etc. In this way sandstones have been ch oe ie «ie il as ie ale SMe ail Me le tly 7 ‘ A ~ * as et 4 . 8 A 162 THE Orrawa NATURALIST. ~~ frequently changed to hard quartzites, shales to cleaved slates, and limestones to a crystalline condition, as marbles. Often all the altera- tion is directly due to the presence of heated masses of intrusive rock, as granite, syenite or diorite, which have ascended from the heated interior along lines of fracture or least resistance, and the heat has deprived the rock in contact of much of the contained moisture, changing the texture and altering its character for a considerable distance from the line of contact of the intrusive mass. As regards some of the more important mincrals found in the stratified rock, their formation has proceeded on somewhat similar lines. Thus if we study the early history of the coal beds, some of which have a thickness of from thirty to forty feet, we find that they have originated probably from swamj:y deposits somewhat of the nature of our present peat mosses, ard that ihe growth and decay of vegetable matter went on for very long periods. On the basis of eight to ten feet of peat or swamp mud being required for every foot of coal produced, a thirty foot coal seam would have required a swamp of enormous depth to have furnished the material necessary for the formation of such a coal bed. That the coaly matter has been derived from the decomposition of plants, such as tree ferns and other allied forms, which grew in the marshes of the Carboniferous time is very clear, since the remains of the coal-plants can be found well preserved in the shales which overlie the coals ard in the clays which form their underlying strita, as well as in the tissue of the coal itself. It would appear that the woody or~ interior tissue gradually became destroyed, while the carbon of the — bark principally formed the mass_of the coal itself. These masses of swamp or peaty matter, gradually by submergence become overspread with sand, gravel or silt, which by continued increase in thickness acquired sufficient weight to press down the mass of bog, until by long continued pressure and other causes it became transformed into the coal which we tnine and burn to-day. Somewhat similar changes and conditions are going on at many places at the present time in our own peat deposits. Thus at the great bog near the city known as the “ Mer Bleu” which is a great expanse of peat cf from 8—10,000 acres in exient, the surface is covered with ee een ) ts em 4 yee Tes ° “ - How Rocks Are Foren. (163 green moss, ferns, shrubs and stunted trees, the whole forming a light colored layer of two or three feet in thickness. Beneath this the contents of the bog gradually become dense and darker colored; the green living vegetation has disappeared, but its remains yet exist in the form of rootlets, stems &c. Still lower down the bog presents a still more homogenous aspect, the vegetable matter is almost entirely decomposed, and the mass is of a uniform dark brown or black color and of a very considerable density, forming a very excellent fuel when dug out and dried. Where this material is subjected to great pressure it furnishes a material known as compressed peat which can be so manufactured as to have all the density and calorific power of coal itself, and thus is able to furnish a material of very great value for all the purposes for which ordinary coal is now applied. There is therefore a manifest resemblance between these modern bogs and those from which our beds of mineral fuel were derived ; with this exception, that the character of the growing - vegetation, and the nature of the animal life which inhabited these were widely different ; while the presumption is strong that if these peat bogs could be subjected to the same conditions which affected those of the Carboniferous time, the resulting material would be a coal of somewhat similar character. Coals of an intermediate character are also found as in the great lignite deposits of the Saskatchewan and Souris areas, where the mineral still retains to a marked extent its original woody fibre. On the other hand when the bituminous coals have been subjected to the action of further heat and pressure, the result appears in the form of authracite or hard coal, in which much of the volatile matter has been driven off. A still further alteration results in the formation of graphite. Beautiful illustrations of this latter condition are found in some deposits in southern New Brunswick, where the coal is graphitized anthracite, the containing rocks being thrown on edge and much altered. Other kinds of rock masses may be mentioned, such as rock-salt, gypsum, shell-marl, infusorial earth, chalk, iron ores of various kinds, petroleum and petroleum-bearing shales. Of these, rock-salt has probably been formed by the evaporation of saline waters in enclosed basins, a process which has been going forward at many stages of the a) a 6 ett 164 THe OTrawa NATURALIST. world’s history, and is seen at the present day in nature in the Great Salt Lake of Utah, as well as at all points where salt is produced by solar evaporation or action. Gypsum isformed principally as a chemical precipitate from solution in water, as well as by the action of sulphurous vapours from volcanic vents upon calcareous rocks. Shell marls are mostly of organic origin, formed by the accumulation of the remains of shells in the bottoms of lakes or ponds, often seen underly- ing peat bogs, as is also the case with certain of the limestones where the mass of the rock is made up almost entirely of organisms. Certain of the limestones, however, are formed by chemical action, by deposition of calcareous matter in solution, in which case they are frequently highly siliceous and devoid of all trace of organic life. Chalk is formed like shell marl, only differing in its being of marine instead of fresh water origin; the mass of the deposit being principally calcareous, while with infusorial earth which is formed from portions of diatoms, the mass is chiefly siliceous. This substance although requiring a high power of the microscope to detect the traces of the organisms is often found in deposits of many feet in thickness. The deposits of iron ore, which form a very important portion of the economic products of the earth’s crust, owe their origin very largely. to the action of certain organic acids, which have been produced by the decomposition of vegetable matter upon the ferruginous minerals found in many rock masses, and which thus pass into solution with water. These solutions rapidly decompose under certain conditions and the iron salts are precipitated, and become mixed with sands and clays, gradually forming beds of what is known as bog iron ore. This material in certain areas constitutes deposits of very great extent as in the St. Maurice district, where these ores have been mined and smelted for over 150 years, and are still as abundant as ever, at many points. The other ores of iron, such as limonite, hematite, magnetite &c., which frequently occur in immense masses have also been regarded by some chemists, and geologists as owing their existence to organic agencies, and their present condition is supposed to be due to the great metamor- — phoses to which they have been subjected -during the great lapse of time since their deposition. It seems however probable from the How Rocks are Formen. 165 associations of many of these deposits with clearly intrusive rocks that their origin is more closely related to these latter than to any organic agencies as is the case with the recent iron cre deposits. Of late years the microscope has come to the aid of the field geologist and has been of wonderful assistance in solving the problem pertaining to the structure and origin of many rocks, concerning whose genesis much doubt had long existed. By the increased light _ thus furnished, many new facts have been adduced which have, on certain lines, almost entirely revolutionized our earlier ideas as to rock structure and by the union of the forces of the field and the laboratory much more satisfactory conclusions have been reached, It may be safely said that by this means, the progress in accurate geological investigations during the last ten years has been far greater than in any previous similar period, and the results obtained have been much more _ teliable. The vicinity of Ottawa is excellently adopted for the study of many rock formations. Along the line of the Gatineau railway many beauti- ful sections of the early crust are exposed in the form of granite, gneiss and crystalline limestone, and their intersections by dyke-like masses of deeper seated rocks are well seen, as syenites, diorites, pyroxenes, felspars, etc. The Ottawa, Arnprior and Parry Sound andthe Canada Atlantic Rail- ways both traverse areas occupied by the lower Palzeozoic rocks and many instructive outcrops of sandstone, shale and limestone are easily avail- able to the geological student. Some of the strata of the Chazy and Trenton are wonderfully rich in organic remains. The former of these two great rock divisions illustrate the conditions which prevailed when the earliest ocean waves dashed against the oldest outlines of our con- tinent, and strewed the debris of sand and pebbles throughout the Ottawa area, while the limestones and shales of the Chazy and Trenton show the prevalence of deeper water conditions and the abundance of the animal life even in those early days of the world’s history. The most recent deposits of clays, sands and gravels can also be studied at many points along the river Ottawa as well as over the country adjacent on either side, and their contained organisms, in the shape of bones of seals and fishes, as well as marine shells, are familiar to many of the 166 "Pax Orrawa NATURALIST. ; members of our club. These shell deposits are found at many points — along the hills around Ottawa and away up the river to the west at elevations of hundreds of feet above present sea level, and show that the - | deposits of these portions of the present crust of the earth were due to the series of rhythmic pulsations which seem to be constantly going on, and by which at one time, the surface is raised to a considerable eleva- tion above tide water and then gradually becomes submerged till a ocean waves wash the sides of our highest hills. It will be readily admitted by everyone conversant with the study of Geology, that, like all other branches of science, it is extremely. pro- gressive in its tendency ; but though the new facts acquired year by — year, through our recent sources of knowledge, have led to many changes of view as to the origin, history and manner of formations oi the com- ponent parts of the earth’s crust, it should not be assumed that as a consequence any discredit should attach to the conscientious work of the pioneers in the science, but rather the greater credit should in many cases be given, in that they, with such poor materials at their disposal and such a lack of facilities at their command for investigation, shculd have -been able to accomplish so much, and to obtain results so generaily satisfactory to those who have since studied the rocks in the light of modern science. Reporr oF GEOLOGICAL BRANCH. 167 REPORT OF THE GEOLOGICAL BRANCH, 1894 95. (Read December 20th, 1894.) To the Council of the Ottawa Field-Naturalists’ Club : The following notes on geological work carried on in this vicinity by members of the Club and others indicate clearly the interest which still prevails in the study of the geological formations about Ottawa. : Considerable geological work was done at the three general excur- sions held under the auspices of the Club The following table shows the various places visited and the geo- Jogical formations noticed and reported upon either orally at the excursions by the leaders, or in the NATURALIST* :— Saxicava sand, |Fossils abundant. fSands and gravels, clay, &c. era Leda clay. Boulder clay. CHELSEA. Archzan. Gneisses, limestone, ophite, diorite, &c. 6 a Leda clay. No fossilscollectedjMarine clay and_ boulder aA No. 2. Boulder clay. clays, glaciated rocks. = S |Wakeriecp. 5 — = Archzean. Gneisses, pegmatites, &c. a TO REO {Marine Fossils in No. 3. Pleistocene. the gravel pitattChrondrodite limestone, | Carp Station. syenite. &c., overlain by GALFTTA. ar marine clays and sands. Archean, &c. Besides the three general excursions, above mentioned, there were held a number of sub-excursidns in which various members of the Club and others interested took part. These are some of the localities visited :— 1. PorTEr’s ISLAND, RipEaAu River, Ottawa In April, 1894, *(a) Vol. VIII., No. 3, pp. 42-43, 1894. (b) Vol. VIII., No. 5, pp. 74-75, 1894. (c) Vol. VIII., No. 7. pp. 109-110, 1894. 168 Tue Orrawa NATURALIST. the writer, together with Mr. B. E. Walker, F.G.S., of Toronto, Mr. N. J. Giroux, C.E., Mr. J. C. Reichenbach, and others visited this island, where extensive excavations made by the cigic authorities had brought to view the fossiliferous strata of the middle Utica. Large blocks of black bituminous shale were examined and a perfect harvest of interesting forms obtained. Slabs covered with the remains of graptolites of the genus Lepfo- graptus, beautifully preserved and showing the hydrothece and other points of structure wonderfully well; colonies of the sponges recently described for the writer by Dr. Hinde as Stephanella sancta, together with remarkably well-preserve | specimens of Zriarthrus spinosus were found in tolerable abundance. A complete list of the species collected on Porter’s Island will be published in a future number of the NATURALIST, if desired. 2. HuLL, Que. The quarries at Hull both north and south of the C. P. R. track, were again visited and as usual yielded a number of interesting forms, especially crinoids. On one occasion, in two hour’s search the writer and two friends secured no less than 3c heads of crinoids besides a large number of beautiful examples of Zvematzs Ottawaensts, Billings and an undescribed bryozoary. 3. BESSERERS, Ottawa River.—g miles below Ottawa City. In company with Mr. Lambe of the Geological Survey the ‘writer spent a day collecting in the Post Pliocene marine clays of this locality during low water in September. Besides some f/¢y specimens of fossil fishes —Mallvtus villosus, Cuvier, collected on this occasion—there were obtained remains of shells and plants in tolerable abundance. Some fifty specimens of plants were sent to Sir William Dawson and include remains of algz or seaweeds, mosses, equisetacee, fruits, grasses, sedges and leaves of trees and flowering plants. Two fossil feathers were also collected. The first specimen of a fossil feather from those marine clays discovered as far as we know was that obtained by the Marquis of Lorne at Green’s Creek, during his Report oF GEOLoGIcCAL BRANCH. 169 term of office, about 1881, and is now on exhibition in the Pleistocene _ case at the Geological Museum on Sussex street. Several papers bearing on the Geology of this district have appeared from time to time in the Naruratist during the past year. The Director of the Geological Survey of Canada (Dr. Selwyn) has undertaken to publish a series of Geological maps of this portion of Canada and entrusted this work to Dr. Ells who is also one of the leaders in Geology of our club. I have no doubt that he will find useful and interesting material in the published records of the geology of Ottawa or in the unpublished notes of the leaders in geology. Records and notes have been kept during the past fifteen years at least, an amount of useful information which will be useful in preparing a more detailed and accurate geological map than has heretofore been published. Early in the spring of ’94, one of your leaders, the writer, _. issued a chart of the Geological formations of Ottawa and its environs extracted from a paper published in 1888 on the formations of this district. ; - What is now required is a good topographical map of this district upon which to lay the geological features. | Considerable difficulty has been met in the fact that the surveys on the Ontario side do not correspond with those on the Quebec side of the Ottawa and require to be corrected at numerous points. Considerable progress however was made in this direction by the late Mr. Scott Barlow, Chiet Draughts- man of the Survey, and this branch of the Club’s work looks forward to the time when such a map will be prepared for the Ottawa district. In the meantime a great deal remains to be done in geology about Ottawa The structure and composition of the older crystalline rocks at our very door, their origin and age are only begining to be studied and understood, whilst the fossiliferous rocks always prove to the diligent searcher that many forms new to science are still awaiting to be discovered. In conclusion we trust that good results will long continue to be forthcoming in this branch of the Club’s work. (On behalf of the leaders) H M AMI 170 THE OTTAWA NaruraList. ; xm NOTES, REVIEWS, AND COMMENTS. Glacial Deposits in Europe and America. —In the April- May issue of the Journal of Geology, Vol. III, No. 3. pp. 241-269, James Geikie contributes a valuable paper entitled :— ‘“‘The Classification of European glacial deposits.” It is a clear and conscise résumé of the evidence gathered by one whose intimate acquaintance with the facts of the case enable him to present the various stages which characterized glacial times in Europe- From the earliest glacial deposits of northern Europe—the Scanian—to the latest, the Upper Turbarian or sixth glacial period, Dr. Geikie notes five interglacial periods and six glacial periods, which he designates as follows :— EUROPEAN GLACIAL AND INTERGLACIAL STAGES. XI. Upper Turbarian—Sixth Glacial Period. , X. Upper Forestian—Fifth Interglacial period. IX. Lower Vurbarian—Fifth Glacial Epoch VIII. Lower Forestian—Fourth Intergiacial Epoch. VII. Mecklenburgian—Fourth Glacial Epoch. VI. Neudeckian—Third Inter Glacial Epoch. V. Polandian—Third Glacial Epoch. IV. Helvetian—Second Interglacial Epoch. III. Saxonian—Second Glacial Fpoch. II. Norfolkian —First Interglacial Epoch. I. Scanian—First Glacial Epoch. This admirable paper by Dr. Geikie is followed by another on “The classification of America’s glacial deposits” 270—277, (loc-cit.) by Prof. T. C, Chamberlin in which the latter points out the relations which exist between the stages mentioned by Dr. Geikie in his paper on European glacial deposits and the stages in America. Prof. Chamberlin remarks: ‘‘Our knowledge of the formations that were deposited during the advancing stages of the glacial period in America is ~ extremely imperfect.” ‘This strikes the key-note to a series of careful investigations which ought to be made in the lowest glacial deposits Of North America and specially in British North America such as wil enable the correlations of the different stage in Europe and America to be more accurately established. Prof.Chamberlin attempts to correlate the Kansan formation with the Saxonian of Europe owing to their striking ot Np ee oe eS 3eey AS ‘an Se ee — =~ oe - Nores, Reviews AND CoMMEN's. 171 similarity, in that they “‘al:ke repre sentthe greatest extension of the ce-sheet. The A/fontan and the Helvetian are then compared dicating a retreat of the ice-sheet. Then the /owan formation of Dr. McGee — which Chamberlin co-relates with the /o/andian with some doubt. The Zorento formation correlated with the ANeudeckian (?) ; the Wisconsin formation with the AMecklenburgian (?) and the later deposits are compared with the Forestian and Turbarian deposits of Europe. ‘These two papers are most interesting contributions to glaciology. H. M. Amt. Botany.—Rare MAaniropan Piants.— I beg to note the finding of the following plants at Stony Mountain, Man., on August 12th 1895. (1) Gerardia tenutfolia, Vahl. var. asperula, Gray. This was recorded trom the same locality by J. M. Macoun. Many years ago I noticed it northwestward towards Lake Manitoba. This would seem to confirm the conjecture made in Prof. Macoun’s Catalogue that G. aspera of Douglas, should be referred here. (2) Bouteloua racemosa. Lag. This grass is very rare in Canada, it was found in the same locality by Mr. Fletcher in 1883. (3) Pellea atropurpurea, Link. On limestone rocks. This is the first record for Manitoba, though there are several for the North West Territories—Rev. W. A. BurMAN, Winnipeg, Man. c ASPLENIUM RUTA-MURARIA, L:—In the Orrawa NATURALIST for November 1892, Dr. T. J. W. Burgess, F. R. S. C., records the first discovery in Canada of this rare fern by Dr. P. J. Scott, of Southampton, Ont., on Flower-pot Island, near Tobermorey, Bruce Co. Ont. In locking through some botanical specimens collected by the Rev. W. A. Burman, of Winnipeg, at Banff, Rocky Mountains, in June 1894, I find some good fruiting fronds of this fern. This is the second locality in Canada so far recorded.—J. F. Zoology.—THE Common House Mouse, Mus musculus, L. Two specimens of a mouse taken by the Rev. J. H. Keen, at Fort Simpson, Northern British Columbia, were forwarded for identification to Mr. S. N. Rhoads, of the Academy of Natural Sciences of Philadelphia Pa., who reports that they are the above speciés, and, that the capture so far north is of interest.—J. F. Entomology.—Pampuita Prckius, Kirby.—This pretty and ‘common little Skipper, of which there is normally but one brood in the year at Ottawa, the butterflies appearing in the latter half of June, has this year been practically double-brooded. During the hot weather we had last September numerous specimens were seen darting about the beds of Phlox Drummondii at the Experimental Farm. In _ previous years an occasional specimen has been recorded in the autumn but this year the species was abundant.—J. F. z ; ; <° | 35 Planorbis nautileus, | Linn, var cristatus. . . x 36 Segmentina armigera, Oe (Say .Spiuenc eee eee x x 37 Spherium — solidulum, | Prine Feria ae 5 ~ 38 Spherium fabale,! Mali@acepad Stod- xo 39 Spheerium fe Relive, ssc ops GoUcur is EX ac 40 Pisidium abditum, Haldeman per eee x x aes: x 41 Unio luteolus, Lam...) x 42 Unio subovatus, Lea. .| 43 Magaritanacomplanata Baynes nae ote ioe ei 44 Anodonta lacustris, Lea! om REPORT OF THE ENTOMOLOGICAL ee 1894. Read, February 12th, 1895. - . To the Council of the Ottawa Field-Naturalists Club: ; It is with pleasure that the Leaders report to the Club the prosperous state of this branch. A great deal of good work has been done during the past year, not only in collecting specimens in the various orders of insects, but also in working up material accumulated in previous years. In this way many names have been added to the lists of insects recorded as having been found in the district. A few the more interesting finds have been recorded in the Oftfawa Naturalist, and the others have all been recorded for publication in” the lists, from time to time, as these are thought sufficiently complete. During the year, two supplementary lists of local Hemiptera have beer published by Mr. Harrington. In addition to the work done by the leaders individually, the opportunities of interesting members of the Club at the excursions were taken advantage of with the good resu Report oF THE Enromonocicat Brancu, 1894. 179 that some good species were secured by members not specially interested in Entomology. At the first excursion in the spring, we were pleased to welcome Dr. Scudder, of Cambridge, Mass., the eminent American entomologist, and also our fellow-member, Dr. Bethune, of Port Hope, the editor of the Canadian Entomologist, and well known for many years as an active Canadian naturalist. Dr. A. H. Mackay, and Prof. J. Fowler, of Kingston, experienced botanists, were also with us, and helped to make a most successful and enjoyable excursion, particularly for the ~ entomologists and botanists. Some of our members made interesting collections in the west; not- ably Prof. Macoun, at Crane Lake, and Messrs Klotz and Simpson, in Alaska. LEPIDOPTERA On the whole the past season cannot be said to have been a very good one for insects, although, as is always the case, careful search and constant watchfulness added several desirable species to our cabinets. Some good work has been done in working out the life histories of some of the native butterflies and moths, a most fascinating study, and an excellent means of securing good specimens for the cabinet. The _ following species have been partially or completely reared from the _ egg:—Papilio Bairdit, (= Oregonia,) Colias Elis, Colas Nastes, Chionobas Jutta, C. Macountt. The first from eggs sent from Colorado, by Mr. W.H.Edwards, and all but the last, from eggs collected at Laggan, in the Rocky Mountains by Mr. T. E. Bean. From eggs obtained at _ Ottawa : Chrysophanus Thoé, Colias Eurvtheme, C. Philodice, Pamphila Metacomet, P. Cernes, and P. Mystic have been reared. COLEOPTERA. : Considerable additions have been made to the Ottawa lists of beetles, but some of the species are yet unidentified. Among those : determined may be mentioned Oéestodes tenuicollis and Conotrachelus _ anaglypticus. Three specimens of the rare Sfapy/inus erythropterus, 5 ; _ only once previously recorded in America, were taken in Dow’s Swamp. 180: THe Orrawa NATURALIST. HYMENOPTERA. A large collection, especially of the smaller species, was made at various points in the vicinity of the city, of which may be noted, Kettle Island, the Old Racecourse, Beechwood, the Beaver Meadow and Russell’s Grove, near ELull, the Experimental Farm and Dow’s Swamp. The Aculeata, or sting-bearers, numbered about 125 species; Phyto- phaga, or leaf-eaters, 70 species ; and Parasitica, at least 200 species, of which a number will probaoly prove to be undescribed, while many of the others are new to our lists, or of very rare occurrence and special interest. J. FLETCHER, | W. H. HARRINGTON + Leaders. Te? MCnae en ial SER a TIE IY A IE TOS IAS ID OBITUARY NOTICES. 1.—Dr. GEoRGE Lawson, PH.D., F.R.S.C., ete., etc., professor of Chemistry and Botany, in Dalhousie College, Halifax, well known to many of the members of our club, with which he has been connected for eleven years, breathed his last at his home in Halifax, Nova Scotia, November 11th, 1895. At the time of his death Dr. Lawson was President of the Nova Scotian Institute of Science, Halifax, an active member of Section IV of the Royal Society of Canada, of which Society he had the honor of being its President, and in Section IV,where he read valuable papers, chief amongst which is his ‘‘ Monograph of the Ranunculacee.” Dr. Lawson was born in 1827, at Maryton, a beautiful village on the banks of the Tay, in Scotland. In his early days he was apprenticed toa solicitor in Dundee, with a view to enter the legal profession. But he had strong tastes for botany and natural history studies. These he pursued vigorously, and came in contact with many scientific men of the times, notably in Edinburgh. In 1849 he was elected to the position of Asst.- ‘Sec’y and Curator to the Botanical Society, and to a similar post in the Caledonian Hoticultural Society. In 1850 he published a work on ‘‘ Water Lilies,” and was appointed secretary and editor of the Scottish Arboricultural Society. He edited the transactions, of this last named PT APRs OPE Ew re ET he 5, a4 fF aoe h) ee ~* . PCL ase 26entT Ue a eo ere eT eee aes OBITUARY. 181 Society up to 1858, when he was called to the Chair of Chemistry and Natural History in Queen’s College and University, Kingston, Canada _ West, which position he held for many years, until he accepted the appointment in Dalhousie College, which position he held at the time of his death, Dr. Lawson’s genial spirit and kind demeanor won for him many staunch friends and admirers. He was one of the foundation or charter fellows of the Royal Society of Canada, and was chosen as an authority on numerous occasions by his province and country. His loss will be greatly felt by all whose researches had thrown . them into communication or acquaintance with him. 2.—Don ANTONIO DEL CastTILLo, F.G.S., F.G.S.A., founder and director of the Geological Survey of Mexico, died on the 27th day of October, 1895, in the City of Mexico. Don Antonio had taken a wide interest in matters geological throughout the world. At the time of his death he was a fellow of the Geological Societies of France> Belgium, London, Berlin and America, a member of the Geographical and Statistical Society, Director of the National School of Engineering, ‘and an active member of the American Institute of Mining Engineers. Notice of the death of this distinguished geologist reached the Ottaw4 Field Naturalists’ Club early in November, and to the members of the Geol. Surv., of Mexico, who kindly sent the news, the Club tenders its deep sympathy and regret. a R'E NOTES, REVIEWS AND COMMENTS. Geology.—Tue Sacurenay Gorce.—An interesting discussion* has arisen between the Rev. Mgr. Laflamme, A. Buies, P. Horace Dumais and others, as to the geological history of the gorge at the entrance or mouth of the Saguenay. Mgr. Laflamme and Mr. Dumais both agree in the view that the gorge is an old fjord resembling those of Norway of to-day. GEOL. Soc. or AMERICA——The Eighth Winter meeting of the Geological Society of America’ will be held in Phila- *Naturaliste Canadien, Chicoutimi, 1895. 182 THE Orrawa NATURALIST. delphia, Penn. U. S. A.; probably at the University of Pennsyl- vania buildings. The meetings are called to order at 2 p.m. Dec. 26th. Prof. Joseph I.e Conte of Berkeley, California is president. The meeting promises to be unusua!ly interesting and important. Entomology.—I. The editor of the Ortawa NATURALIST is indebted to Mr. J. B. Tyrrell of the Geological Survey Staff for one copy each of two important contributions to the Natural History of Canada, viz. :-— (1.) ‘* Canadian Spiders.” By J. H. Emerton, (with four plates); from Trans. of the Connecticut Academy, Vol. IX, July, 1894. (2.) Nordamerikanische Hydrachniden, von F. Koenike, Abhand!ungen des Naturwissenchaftlichen Wereins zu Bremen. XIII., Band 2. Heft. pp. 167-226. Bremen, 1895. I. CANADIAN SPIDERS. The collections of spiders examined and reported upon by Prof. J. H. Emerton, comprise the following :— 1. Rocky Mountains, lat. 49° to 52°, from 3,000 to 5,000 feet, J. B. Tyrrell, 1883. . Rocky Mountains, near C.P.R., from 5,000 feet, at Laggan, up to 8,500 ft. on the neighbouring mountains. A large collection by Thos. E. Bean. . Alberta Territory, lat. 51° to 54°, long. 110° to 114°, J. B. Tyrrell. . Saskatchewan River, S. H. Scudder. Lake Winnipegosis, D. B. Dowling, 1888. Lake of the Woods, A. C. Lawson, 1884. - Ottawa, Ontario, J. B. Tyrrell. . Montreal, Quebec, J. H. Emerton. _ Interior of Gaspé Peninsula, R. W. Ells, 1883. . Anticosti, Magdalen Islands, and several ports around the Galf an St. Lawrence, from Port Hawkesbury to Mingan Harbour, Samuel Henshaw, 1881. 11. Labrador, Bonne Espérance, lat. 51° 24’, to Triangle Harbor, 52° 50’, John Allan, 1882. 1S) OO SNOWED Lal Exactly 100 species of Canadian spiders are described in this interesting report and Prof Emerton states that “as far as can be jndged, from the present collections, the spiders of Canada, differ little from those of New England.” Out of 61 species, from Labrador to Manitoba, 56 species live in New England ; and out of 48 species from the Rocky Mountains, 27 have been found in New England. Among ‘the spiders of Canada are several species that live but little south of its ‘boundary, and there only at high elevations. The most conspicuous of these is Lpeira carbonaria, which lives on the Alps in Europe, in the * Ae it ls eh Nores, Reviews AND CoMMENTs. 183 White Mountains in New Hampshire, and on the Rocky Mountains as far south as Colorado, in all cases above the tree line. In Labrador the same species was found by Packard near Square Island, where the mountains are 400 to 1000 feet high, and bare at the top. Pardosa Groenlandica has been found as far north as Disco “Island, Greenland, and along the coast to the Gulf of St. Lawrence. It is common on the White Mountains, above the trees. In the Rocky Mountains it occurs at 5000 feet, at Laggan and in Colorado at 8000 feet. It is also among the spiders from the Lake of the Woods, andon the Pacific Coast it was found at Portland, Oregon.” | » ““ Among the rarer species in these collections,” Prof. Emerton says: ‘‘ there are two Epeiras of the angu/ata group; one: E&. nigra, resembling the Z. so/etaria described in ‘‘ New England spiders ” ; and the other, a small variety of &. Nordmanni. Lattey’s pallida belongs to a genus new to the northern part of North America.” Prof. Emerton states that the Afide were determined for him by Mr. Peckham and include one new species: Hadrocestum montanum from the Rocky Mountains and those from the Polaris Arctic Expedition were sent to Prof. Ermerton by Prof. Packard. The bibliography of spiders is also discussed and the reference given on pp. 401 and 402. Emerton, Peckham, Hentz, Keyserling, Thorell, Cambridge and Blackwell being the authors who wrote from 1846 to the present time. Four excellent lithographic plates accompany this paper, drawn from nature by Prof. Emerton himself, and show clearly the crucial and distinguishing characters of the numerous species in question. Spiders are best collected in small glass bottles and preserved in dilute alchohol. Systematic collecting in the Ottawa district would no doubt reveal a large and important addition to the species named in the list. = 184 Tue Orrawa NATURALIST. oy Catalogue List of Canadian Spiders described by Prof. J. Hu. Emerton. No.| Genus and Species. Author. Locality. Province or District. I Epeira DSTA ween aes INESSyos cael Laggan, Rocky Mts..... Albers 2 Nordmanni....... N2 Spree Gaspé. wim cen tee vee Quebec. Sa [/- SANE NETSTERN S45 Sa nloe Hmetton® .|Gaspesn, 2. tece es eee AO |r Marmerea): seer Thorell ...|Lake of the Woods ...... Ontario. Gaspé. [22 ~bceeeee yee 5 Se = tritolium ey .-|Hentz ....|Rocky Mts., poe ....-|Alberta. ss CSE OR oa ee eas De oss eee Quebec. Entry Island, Guif of St. Lawreice...2.) Ame 3 Golite + = edisplicatarer cr =e Hentz ....|/Rocky, Mts., Laggan... .|Alberta. ANTCOSt i. 2 a\.:0%.- © aes Quebec. 7il|on ee pataciatal yee eters Thorell-.) (Ue as etna Quebec i derhamii .... (Scopoli) ey EM Sine ee : |Thorell. Hahnia bimaculata... .. Emerton . |Lake Winnipegosis ..... Manitoba. ** cinerea ... ....|Emerton ..|Peat bog, near Ottawa... .|Ontario. Agalena nevia.......... Walck. and BOR cst. Lake Winnipegosis ..... Manitoba. Bryon I., Gulf of St. Law- TEN CGy ae oe 15 eee Quebec. Agroeca repens ........ Be Sp. - os Lagpant ooettere on cae ees Rocky Mts. Phrurolithusalarius...... Emerton . .|Lake of the Woods ...... Ontario. Peecilochroa variagata_..|Emerton. ig = . Gnaphosa conspersa ....|Thorell ...|Near Laggan ........... Rocky Mts. Lake of the Woods ...... Ontario. - brumalis...... Thorell .. |Laggan (abou 5,000 ft.) ..| Rocky Mts. Strawberry Harbour ..... Labrador. Elbs Bay accrcens ote Anticosti. Drassus coloradensis ..../Emerton .|Near fe a freee Wace Rocky Mts. Pee RODUSEUS.. ..../. >... Himenton..: |) ' **" Wo Rien ue ers = Micaria constricta ...... IN Spe in: EE Faerie See Be Some PITMAN 5% oo sor ahe Emerton ..|Below Laggan .......... es Prosthesima atra........ Emerton . . Clubiona ornata ........ Emerton... (Gaspe. . . ux aad ease as Quebec, «© Canadensis ....|Emerton ..|Gaspé, Montreal ........ = Xysticus ferrugineus ....)N. Sp. .../Near Laggan ........... Rocky Mts. triangulosus ..../N. Sp..... ag ee + > bimacolatus ....|N. Sp..... Above Laggan..... see + 186 Tue OrrawsA NATURALIST. No. 93 Genus and Species. Author. |Xysticus pulverulentus. |N. Sp..... |Cariarachne versicolor Keyserling Oxyptuia conspurcata....|/Thor...... Misumenia vatia AUIS cont ae aleatoniae = so) Emerton .. = asperata...... Emerton .. Philodromus bidentatus..|Emerton .. oe inquisitor ...|Thorell.. . Tibellus Duttonii ...... KEYS ses) Thanatus coloradensis. ...|Keys.....- |Phidippus tripunctatus ...|Emerton . Dendryphantes zstivalis .|Peckham.. militaris . |Emerton . Reis amit ratus 7. cnc Veckham. \Neon nellii.............|Peckham.. itdsypalluStriscr .. sue. Peckham.. Habrocestum splendens. |Peckham. . Salus pulexeese ses Peckham. . Habrocestum montanum.|Emerton .. (N. Sp.) Tale peak fumosa (N. Sp.)..|/Emerton . . Beanii (N. Sp.)...| Emerton «¢ quinaria (N. Sp. :: Emerton .. ce a POMas tt.) cae Emerton .. oP ipratenSis 7. soe x " @xilis, MISPao sea nee ae WEE Se Sete } x " decaporas; miSpseeeeeere s.r x " MUultiporus; DiSPss seks {o-iee'-1 ss ee x Atax ypsilophorus,Boazse--.-- en ese ere x 4 vermalis,; Mueller=aee =. s25to% 2 tare x a INSENS) NSP at Sa ees et see = eee i fossulatus;"nisp sneeee ooo Se ee eeee x “ (1) FLETCHER,; JAMES, F.LS., F.R.S.C., “ Practical Entomology,” being tae presidential address delivered before the Geol. and Biological Section of the Royal Society of Canada, May 15th, 1895. Trans. Roy. Soc. Can., Second Ser., Vol. 1., Sec. LV., pp. 3-45-, T895. This paper, the first published in the new series of the Transactions of the Royal Society, contains a succinct account of the value of scien-- tific knowledge to the practical] problems of every day life. The history of economic entomology from, the days of Aristotle and Pliny the Elder to thoseof Muffet in 1634 isgiven downtothe present time, including Linneus, Fabricius, Latreille, Curtis, Westwood, Capper, Yeates, Bar- but, with Kirby and Spence who followed each other and raised a monu- ~ ment which enables us to ascertain the fundamental and permanent relations which exist between plant and insect iife. The work done by John Curtis, founder of the Royal Agric. Society of England, by Miss E. A. Ormerod, one of our Corresponding Members, by Mr. C.;White- cay 1g. c a lel ea ’ i ae Nores, Reviews anp ComMENTs. 189 hea dare also noticed, after which the interesting digest of work done in economic entomology in Canada is carefully considered. How tocontroll injurious insects by remedies, by natural enemies, by vegetable parasites, 1s then considered at length and the excellent work done by Giard in France, by Snow in Kansas, by Forbes in Illinois, by Thaxter in Massachussetts is recordeu. ‘This interesting as well as useful address closes with methods of treatment from an agricultural standpoint and an appeal for systematic co-operation. (2) The “WVaturaliste Canadien” is doing good work in distributing useful information in economic entomology. Many of its articles are profusely illustrated by wood-cuts and some of our garden and farm pests can be readily identified by the readers. H. M. A. . Pictou Academy.—The Academy building, Pictou, Nova Scotia, was struck by lightning in the night of Oct. 29th. and destroyed by fire. We regret to have to chronicle this loss to education and science. All the original collections of fresh-water sponges, snakes, as well as minerals, which Dr. A. H. MacKay had made and stored in the Museum and laboratories of the Academy, perished in the flames. We heartily sympathize with Dr. MacKay and with the principal, staff and trustees of the Academy in this loss. We learn with pleasure that the Academy is to be rebuilt with modern improvements. It is earnestly hoped that the building will be a fire-proof one, so that some of the valuable collections of books and specimens which were saved from the flames will not be subjected to such risks. The collections which we had the pleasure of examining in the Academy, in October 1895, only a few days before the fire, were most valuable and reflected great credit upon Dr. MacKay and the Pictou people who had worked so energetically in building up one of the most important local museums in the country. Donations to the new Academy Museum will soon be in order. 190 THE OrrawaA NATURALIST. FOSSIL INSECTS FROM THE LEDA CLAYS OF OTTAWA — AND VICINITY. By H. M. Ami. (Read before the Club, Dec. 20th. 1894.) Fossil Insects are of rare occurrence in the calcareous nodules or concretions of the ‘ Leda clay’ formation (Pleistocene) about Ottawa. So far, we know of only /our species, all of which were described as new species by the eminent authority, Dr. S. H. Scudder of Cambridge Mass. to whose facile pen the world is greatly indebted for valuable contributions to Palzeo-Entomology. Zree of these species were discovered by the writer and one by Sir William Dawson. ‘They all came from nodules collected along the south bank of the Ottawa River, below Ottawa City, and form an interesting series to which will no doubt be added a great many nore when the fauna of these rocks is better understood. The first three species of fossil insects described by Dr. Scudder were (Coleoptera. (1) Fornax ledensis, Scudder. This species was the first fossil insect found in the calcareous nodules of Green’s Creek and was described by Dr. Scudder in one of the reports the Geological Survey of Canada published in 1894. * It was associated with J/a//otus villosus, Cuv. or capeling, the most abundant fossil fish in the nodules at the same mae (2) Tenebrio calculensis, Scudder. t This species is compared with Zenebrio molitor which occurs in North America from Nova Scotia to Mexico and is also found in Alaska. (3) Byrrhus Ottawaénsts, Scudder. ¢ (4) Phyrganea ejecta, Scudder. . The fourth fossil insect discovered in the “‘ eda Clay” belongs to the Neuroptera. It isa caddis-fly found by the writer in a nodule at Green’s Creek, Ottawa R.,. and has only just recently been described by Dr. Scudder in the Canadian Record of Science, Montreal. I am indebted to the Editor of the Can. Rec. of Science for advance copies of the description of this fossil insect, also for the block *Contrib. to Can. Pal.; Vol II, pt.2. p. 39, Pl. ITI, figs. 3 and 4, Ottawa, 1894. + loc. cit. p. 31. Pl. IIT, figs. 1 and 6 } loc. cit. pp. 40 and 41, Pl. II, figs. 6 and 8. Nores, Revinws ANp ComMMENTs. 191 which accompanies the description and serves to_ illustrate the venation of this insect. The description given by Dr, Scudder runs as follows :— “* The few insects that have been hitherto found in the Leda clays or in similar horizons in America have all been Coleoptera. The present specimen, of which a figure is here given, enlarged six diameters, is a cadis-fly, one of the Neuroptera. It was found by Dr. Henry M. Ami, of the Geological Survey of Canada, in the nodules of Green’s Creek and sent me for examination. . It is of a glistening, dark, smoky brown color, with black veins which are followed with some difficulty, especially where two wings overlap. The clearest and most important part of the neuration is in the upper portion of the fore-wing ; but un- fortunately it exhibits in full only the princi- pal cells. These are enough to show that it is a caddis-fly, and that it falls near, if not in the genus Phryganea proper, but it difters in important points from all the species I have examined in the Museum of Comparative Zoology at Cambridge, containing the large collection of the late Dr. Hagen. The difference consists principally in the great length of the thyridial area and of the median cellule, so that the distal termination of the lower cellules is much farther removed from the base of the wing than is that of the upper. It represents a tolerably large species, the _ f preserved fragment being 10 mm. long and t the probable original length of the fore-wing at least 15 mm. It may be called Aryganea ejecta.” Phryganea ejecta, Wi. Sp. Phryganeaee THE MICROSCOPICAL SOIREE. The opening Conyersazione and Exhibition of Microscopical objects and Natural History specimens took place on Uuesday evening 26th. November last in the large Assembly Hall of the Normal School, Ottawa, on which occasion there were upwards of 200 persons present. An address of welcome by Dr. J A. McCabe, M.A., F.R.S.C., Principal of the Provincial Normai School opened the proceedings, after which Dr. R. W. Ells on behalf of the Ottawa Literary and Scientific Society, of which he is president, read a short paper on the future work of societies of this kind in Ottawa in which he strongly urged united effort and advocated the scheme of lectures now carried on in Montreal, known as the “‘ Somerville Lectures” endowed 192 THE Orrawa NATURALIST. by the Rev. Jas. Somerville some fifty years ago and requiring only about $5,000. 6 Mr. F. T. Shutt, M. A.. F.I.C., president of the Ottawa Field Naturalists’ Club followed in a short and neat address in which he described the good work carried on by the Club in Ottawa, not losing sight of its educating influences in the community. Mr. Shutt’s paper it is hoped will be published in exfemso in a forthe issue of the Orrawa NATURALIST. Dr. Ami, was then called upon to describe the various specimens on exhibition both in the cases and under the various miscroscopes in the room. The following gentlemen had charge of the microscopical part of the entertainment :— Prof. Wm. Saunders, F. R. S. C., Prof. £. E. Prince, B. A, F.L.S., Mr. W. Babbington, Mr. D. B. Dowling, B.A.Sc. Mr. Walter Odell, Mr. Andrew Halkett, Mr. W. J. Wilson, Ph. B., Dr. H. M. Ami, Mr. Marsh, B.A., F.C.S. Besides the microscopes, Mr.A. McGill, B. A., B. Sc. had on view and in excellent working order a fine Gerhardt spectroscope from Berlin, Germany. Mr. and Mrs. Beddoe, Miss Lamb and Mr. Miller favoured the audience with vocal and instrumental music during the evening. The musical parts were admirably rendered and appreciated by all. The winter course is thus open for the season 1894-1895 and if the attendance at the last meeting is an earnest of what it will be at the forthcoming soirées, the success of the whole course is secured. To the Ottawa [Electric Co. and to Mr. Wm. Scott especially we are greatly indebted for so generously putting in the electric wires and lamps for microscopical work grafvs. |The display was most elaborate and satisfactory. Announcement.—Prof. Macoun and Mr. James Fletcher will take charge of the next meeting or Soirée to be held in the same _ hall on Thursday, 5th December, 1895. ‘“The value of Botany in Agriculture” will be discussed by the former, and Mr. Fletcher will read a paper on the subject. “ ANaturalist in British Columbia.” These two papers will be “copiously illustrated with specimens. A large attendance is expected. ° THE OTTAWA NATURALIST. Mays THe OTrtraAwa NATURALIST. out some faint idea of plant life, to plunge a pupil headlong into the depths of the study, were to me like setting him to solve some abstruse mathematical problem prior to his learning the meaning of addition and subtraction. Mr. Beal, too, in his paper, whatever he may do in practice, makes no mention of a point which I deem ofvital importance, viz., that every student in botany, from almost his very entry on the subject, should be urged to start and taught how to make an herbarium, or collection of plants, for himself. Field-work is of the greatest importance in promoting familiarity with habitats, and in solving most of the problems of plant life, and to induce pupils to engage actively in field-work there is nothing equal to starting them to form an herbarium, for in no other way can such an interest be excited. In my experience, young people can best be stimulated to take an interest in any branch of study by giving them something to do in connection with it. But it is not alone in the excitement of an interest in the study of botany that the value of an herbarium lies. The ultimate end of any scientific study being the mastery of all that can be learned concerning it, the formation of a collection of plants in a manner most convenient for reference is a necessary part of the science of botany. But enough has been said to give you an idea of the general "principles on which botany is now usually taught in colleges and schocls. Let me next devote myself to telling you what / consider the best way for you to enter on the study. The first step is to procure a text-book on structural botany. For choice I would name Gray’s - “ Lessons in Botany.” It is not too complicated and yet is extensive enough, except for advanced students who wish to devote themselves specially to the study. A work on systematic botany is also essential, and I know of none better than the ‘‘ Manual of the Botany of the Northern. United States,” which covers our Canadian flora in great measure. I would advise any one purchasing to get the ‘‘ Lessons” and “Manual” bound together. In this shape, the books are not only cheaper but more handy. We have in combination excellent works on both departments of Botany, Structural and Systematic, no small - desideratum to the beginner, who, in naming plants by the latter, will Norges ON THE Stupy or Borany. 247 - from time to time meet with unfamiliar terms, for the meaning ot which he will require to refer to the former. A text-book secured, comes what is generally looked upon as a rather dry part of the study, viz, the reading of it. Many words are met with which are strange and difficult to remember, but let me tell you that the labor of learning technical terms is usually much .over- estimated. With practice they soon become familiar, while the dis- cipline taught the mind in learning them is worth all it costs. There is no royal road to soiving the problems of nature any more than there is to deciphering the mysteries of mathematics or metaphysics, but at each step the way becomes easier till at last what was a wearisome task becomes a pleasant and absorbing recreation. ‘The so-called drudgery” is greatly lessened if the reading be pursued in a proper manner, and especially if the reader has before hit the proper material to illustrate the more important points in each topic as it is taken up. He who has some older botanical head to advise him what material to provide beforehand for each chapter, is greatly blessed,* but, whether he has specimens to examine or only the plates in his text-book to guide him, I would strenuously advise him to make no effort to commit all the terms he meets to memory. Let him try toread slowly and under- standingly, but let him bear in mind that the object of this primary reading, is only to get a general notion of plants and their parts, and to learn the meaning of a few of the most material technial terms, so as to be able to start collecting and naming plants for himself. Thus, in the first reading, he will gain an idea of the life-history of a plant, and dis- cover that as a rulea miniature plantlet, the embryo, exists ready formed in the seed. If now this seed, say that of the maple, be placed in the ground and allowed to germinate, the miniature plantlet will soon be seen to develop in two opposite directions; downward into a root or descending axis, and upward into a stem or ascending axis, The stem as it reaches the surface of the ground will be seen to beara pair of narrow green leaves, the seed-leaves or cotyledons. Soon between these seed-leaves will appear a little bud, which shoots upward intoa second joint bearing another pair of leaves, which, however, differ in shape 248 aa5 Orrawa Naruraust. : : fom the first pair and. ees those of the maple _ as s usually. seen. Later,.a. third joint shoots. up from the. summit of the second, “bearing ata third pair of leaves, and so on until the plant likeness.ot the seed be- > comes a Ne dergroped. tree. The Ae prbans root, stem, and leaves, menial. organs “or “organs or vegetation, ‘polauds ‘they have for thélic object the “development cand | nutrition of the plant ; while all the parts which succeed the leav es, such as the flower and its organs, ate only modifications of. them designed for a special purpose, and are called the organs of teproduction, since on them depends the increase of the plant in numbers, _or the continuance of the species. Proceeding onward with his reading the student will obtain some “& general. knowledge. of the various sorts and forms of these two sets of organs,-and-afterward will get an insight into the life of plants, and the mode in: which, they. do the work of vegetation. He will discover that all plants.possessing leaf-green (Chlorophyll) as the pigment which gives ‘the.green:color.to the leaves is called, possess also the power of assimil- ation; that.is:of, making starch and similar organic compounds out of inorganic elements, such as water and carbonic acid; which trans- formation, -briefly,. speaking, is thus effected. The plant through its roots, by the process known as osmose, takes in, dissolved in water, “various compounds _containing carbon, oxygen, hydrogen, nitrogen and other materials, _The pressure exerted by the liquid as it comes into ‘the. Troois, “together with the attraction exerted by a constant process of “evaporation f from ‘the leaves, causes the “sap,” which is the plant food, tori rise, and gives us 3 what is known as the plant circulation. When, by this osmgtic action, the sap finally reaches the leaves, it, in conjunction with, carbonic acid derived from the air, is converted, in the chlorophy?l grains. under the influence of sunlight, into organic materials, which — ; Pa, into a whitish granular liquid called protoplasm, and are used in “4 or, owth,” that is in the building of new cells to form plant tissue. 2 Assimilation’ takes place only in sunlight, but growth goes on most rapidly. at “night. In the former process oxygen is set free and given off through . the leaf pores or stomata, but. in the latter, air is ‘taken i in through the stomata, and, ‘as its oxygen is used up, carbonic acid gas ‘is ’ Nores ON THE Stupy or Borany. 249. given off. It will thus be seen, as tersely put by Mr. L. H. Bailey, Jr.— “Tf the leaves are the lungs of the plant because they breathe, they are more emphatically the stomachs of the plant. because they assimilate and digest.” _ It is now in order for the student to learn something of class- ification, as it is by this means he is enabled to analyze and recognize by name the plants with which he meets, thus to avail himself of all that has been recorded concerning them by botanists before him. To the ordinary observer plants differ so much from one another that he can see no points of resemblance which could connect them naturally. For example, what likeness is there between the common strawberry and the mountain ash ? Yet both belong to the rose family. Notwithstanding this great external dissimilarity, the botanist can readily point out in both, characters which at once stamp them as closely akin. ‘The points which determine the relationship of plants are not confined to any one part of them: they may exist in the roots, leaves, flowers or fruits, but the natural system now in use aims to bring together those which most closely resemble each other in all these particulars, laying especial stress on the flowers and fruit. In this respect it differs from the Linnzan and all other artifical systems, which took up a certain set of organs and based kindredship on those alone. The means by which a plant reproduces itself and is prevented from becoming extinct is evidently its most important and essential part, and itis upon this the fruit, that the vegetable kingdom is primarily divided, viz, into flowerless plants, such as ferns, mosses and fungi, and flowering plants, such as herbs, shrubs and trees. The former reproduce themselves by spores, which are commonly simple, minute cells and contain no embyro; the latter by seeds, which are embyro plantlets enclosed in an integument. Among flowering plants, increase in the diameter of the stem forms the first basis of division. There are two general methods in which this increase takes place. In the one case the woody tissue ts scattered as separate threads through- out the whole stem, and the increase in diameter is by the interposition of new woody threads which stretch its surface ; while in the other case, 250 Tue Ortawa NATURALIST. * the woody tissue is all collected so as to form a layer between a centray cellular’ part, the pith, and an outer cellular part, the bark, the increase in'diameter being by the addition of new layers of wood beneath the bark. The former class of plauts, which includes our grasses, sedges © and lilies, is. called endogenous or “ inside-growing ;” while the latter, which includes all our northern trees and shrubs and most of our herbs, is known as exogenous or “outside-growing.” In Canada, the endogens are all herbs with the single exception of Smilax, but in warm. climates they are largely represented by the palms. It is not, how- ever, only. the manner of growth that separates these two great divisions of flowering plants ; marked distinctions exist in the seeds, flowers and leaves. But I shall not weary you with these distinctions, nor by — — describing the principles upon which the exogens are again subdivided into polypetale, gamopetalz, and apetale ; neither will I inflict upon you the method of applying the system of classification to the naming of plants. All these you will find laid down in your structural botany under the heading ‘ How to study plants.” This I will say, however, that the analysis or naming of plants, tedious and difficult as it may at first seem, soon becomes very easy. After a few analyses the primary steps can be rapidly passed over, and I will guarantee that any one who will conscientiously study out twenty to twenty-five good examples will afterwards experience little difficulty in naming most of our flowering plants... Be not discouraged at the slow progress you will at first make ; each successtul analysis. will facilitate the next, and very soon it will become SO. that when you. have worked out one species of a genus you will be likely to know others when you see them, and even when plants - of.a-different genus of the same family are met with, you will, ere long, generally. be able to recognize their order at a glance from the family likeness. A capital practice for the beginner is to work out a. few plants with whose names he is already familiar. Success in these attempts will naturally inspire confidence in the determination of plants previously unknown. . By his initial reading over of his text book the student has got some knowledge of plants and plant-life, as well as an insight into the manner in which their names are determined. He is like the race-horse to. ~ . ‘. ‘ oh tn Saew rive. aa, % \ eee “ A aS 4 . ° ; Fh 3ar Novres on THE Srupy or Borany. 251 , ; which the. jockey has just given a preliminary canter that he may “feel his legs” preparatory for his true task, the race, which lies before him. ‘The knowledge he has gained is slight I grant you, but he is not quite inthe dark. A foundation has been laid upon which it now becomes his duty to raise a creditable superstructure ; a superstructure; the first step towards which should be the commencement of an herbarium which, however, should be subservient to, or a co-partner with, the highest aim in botancial science, the elucidation of the mysteries of plant-life. Laying such stress as I do on the formation of a collection as an aid to further study, let me for a little call your attention to the advantages to be derived from having one, and the best appliances and methods for accomplishing this. The use of an herbarium is, in general terms, to have constantly on hand material for study in‘any class of plants, for, by soaking them in water, dried specimens can be studied almost as easily as fresh. In no other way can we see simultaneously specimens of neighboring species, different states of the same species, and specimens of a species from different localities; and some of the brightest theories on the distribution of plants have been worked out by the aid of the “ hortus siccus” or herbarium. The nomenclature and classification of objects can be best acquired by the constant handling of them, and the price of a good herbarium is incessant vigilance in warding of the attacks of insect pests. But in this vigilance what a throng of pleasant memories is perpetually being called up; the time and the locality, the surroundings, and, if you were not alone when gathered, your companions. Each specimen represents so much information, and the very mention of its name will recall to mind associations connected with its study. These results trom the possession of an herbarium have been so beautifully set forth by Professor Bailey of Brown University that I cannot refrain from quoting his words on the subject. ‘In looking them over one sees not alone the specimens themselves, but the locality in which they were gathered. Many an incident of his life, the memory of which has long since become dormant will be re-awakened as by an enchanter’s wand. ‘He-will thread the forest paths gay with flowers ; te will pause in imagina, 252 THe OrrawA NATURALIST. tion for the nooning by some fern-laced spring ; he will climb the mountain ravine where the blood-root and orchis bloom ; or wander, full of speechless yearning, by the ocean shore. Not only do the natural scenes return thus vividly, but the faces of friends who enjoyed the occasion with him. He is once more seated, may be, by a little lake on the mouatain, in a garden of alpine flowers. Cool streams flow by him, and he picks the’tart fruit of the cowberry. The world lies mapped at his feet, and the infinite heaven is above him. He hears the merry jest and ringing laughter, and his heart becomes gay with the thought of those old-time rambles. ” A collector’s outfit, which will answer all ordinary purposes, is cheap and most of it can be got or made at home. It consists of a botanical box or vasculum ;a plant press ; a pocket lens ; a trowel; a sharp pocket knife ; and a note-book. The clothing worn in collecting should be strong, as one often has to make his way through a tangle of thorny bushes, and old, so that no nervousness at fear of spoiling it may be excited. For foot-wear, stout shoés are generally recommended, but I prefer the oldest and easiest pair I have. A pair with plenty of holes in them. One has occasionally to wade through a swamp where the water comes above the tops of any ordinary boots, and’it is much better that it should run out freely as fast as it enters, than to have to sit down, take off and empty one’s shoes,or continue to walk with the water sogging about in them. With the vasculum you are all doubtless familiar. Any easily portable box will answer the purpose. Of late years, however, I have entirely abandoned its use, putting my specimens directly into the press, and carrying in my pocket an old newspaper or two, in which, previously dampening it, I loosely wrap up any plant that I wish to make special examination of. Plant presses are of various kinds. She one that I commonly use, and which has stood me in good stead from Cape Breton to British Columbia, was given me by our mutual friend Dr. George Dawson when we were in the North-West together, away back in 1871. Though battered, as you see, it is useful as ever, and that after twenty-five years of honest service. It is made of quarter inch basswood strengthened by four cleats, and is 18 inches long by 11% inches wide. The straps are provided with a cross piece, like a shawl strap, which prevents them becoming separated when the press is open, and also serves for a Nores oN tHE Stupy or Botany. 253 handle to carry it by. Wire presses and those of lattice. woodwork are highly. recommended by some, the advantages claimed being’ lightness and a free escape of moisture. In wet weather, however, the’ ordinary form has the great merit of keeping one’s paper dry. For an excursion the press should contain a good supply of : specimen sheets. and. driers with. one or two pieces of mill-board or thin deal,-all. ‘of them, a little smaller than the press. Any thin, cheap paper will’ answer for specimen sheets. What is known as printing paper is the kind I ordinaiily use. For driers a special paper is manufactured, but it.is expensive, and I substitute “filter paper” which is obtainable at most druggists. Blotting paper of any kind will do, and, if. economy, be an object, old newspapers can be made to serve. Some of the finest and most beautiful specimens I have ever seen were turned out from news- papers alone. The object is to have a medium that will quickly absorb moisture and as quickly part with it again. The mill-boards or deals are to keep apart the damp papers containing the plants and the dry. unused ones. I also usually carry in my press a few sheets of cotton- batting to lay over ripe fruits, such as strawberries or raspberries, to prevent their receiving too much pressure and so getting crushed out of shapv. A pocket lens should always accompany the collector, and should not be of too high power, (an inch to an inch and a half focal. distance.) A. very powerful lens while magnifying greatly, inconveniently narrows the field of vision. . A stout table knife answers the purpose of.a trowel, which is used for taking up plants by the root. The note book is an object of prime importance, and should be of such a shape that it can be easily carried in the pocket. In this book are to be jotted down any observations one cannot trust to memory, e.g. the color of flowers, the height of plants, the character of the: soil in which they grow, etc. Unless the collector takes field-notes he will run the risk of letting important observations escape him,, and he cannot too soon learn to make them in a concise, systematic and. legible way, never mixing up conjectures with actually observed facts. . Everyone is 954 * Tor OrrawA NATURALIST. prone to get into'a hutried way’ of making notes, under the idea that they are for his own use only, and that- he will readily recollect any facts omitted at the time. This is a great’ mistake. Notes are. not often required immediately, because every circumstance: ‘connected with the subject is fresh in the memory.” But it sometimes happens that weeks, months or years after, in pursuing some branch of ‘stady, the exact facts then observed are required; and I know nothing more disappointing than, on turning to one’s note-book, to find that at the time, trusting to memory, some of the details had been omitted. — _ In collecting, when a number of plants of a desired species are discovered, the first thing is to make a judicious selection. To be really valuable the specimens in a collection should be as perfect and characteristic as possible, so that anyone referring to it can learn. full sat about each species. A perfect specimen com- prises. all that is necessary for complete botanical investigation ; leaves (both mature: and immature, cauline and radical) flowers and fruit. Specimens: can often be secured showing both flowers and fruit on the same plant, or fruit may be found on more advanced plants at the same time. ‘Tf not in fruit, it must be collected in this condition later in the season. The same rule applies to the obtaining of specimens with. different leaves, or leaves in different stages, and it may require several seasons to make a complete specimen. The plant should be so arranged.as to: be:no larger when dried than can be readily mounted on the herbarium paper.’ Of small herbs, the whole plant, root and all, should be taken, but in any case enough of the root should be collected to show whether the plant, is annual, biennial or perennial. Large plants may be doubled into.a Y.or N shape, and thick stems, roots or bulbs can be thinned down... Inthe: case, of very delicate plants, as many. ferns, thin. sheets’ of ‘paper: should be placed-on- both -sides of. the ‘specimen,. in which sheets it’ remains until perfectly dry. --By “this ‘means «the delicate leaves’ aré pteventéd from doubling up in changing “the driers: - ese Ne OE IAA IVOIRE 51a Wi eS Mh me =e eer re FO eee Norges ON THE Stupy oF Boranr. 255 Care should be taken to display the specimens neatly, showing, if possible, both sides of the leaves. In some cases it is easier to spread out the leaves and remove creases after a night’s. pressure has. somewhat subdued: their elasticity. Morning is the best time to collect most flowering plants, as many close their blossoms by noon, but those that open in the evening, vespertine flowers, should be gathered at that time.. The actual pressing and drying of specimens is done at home, either in the ordinary field press in which they were collected, or between a couple of pieces of inch board of the same size as the press. Weights make the best pressure, and a good weight is made of half a dozen bricks tied together with a cord strong enough to lift them by. Specimens should be put into the drying press as soon as possible after gathering, but often in returning from an excursion one is too tired to care for more Jabour, and I commonly leave mine in the field:press until next morning, nor do I find them suffer any harm from’'so doing. Herein lies one of the great advantages of collecting directlyinto-the field-press instead of a vasculum. In drying, the thin sheets (specimen sheets) containing the plants are transferred into fresh driers, heated in the sunlight or by a stove, and remember always, the hotter they are the better. Be careful to place the specimens in such a way that one part of the bundle is not materially thicker than the other, by placing’ them on alternate sides, or putting in wads of paper if necessary: “Plants dry best in small piles, and for dividing up a package” if too‘large, or for separating the lots put into the drying press on different days, use thin deals like those taken out in collecting. Some very succulent plants, and others with rigid leaves, such as stone crops and pines, dry better if plunged for a moment into boiling water, ere being put into the drying press. Every day, or at first even twice a day, the plants in their specimen sheets are to be shifted into fresh hot driers, ‘the moist ones taken off being spread out to dry in the sun or by a fire, that they may take their turn again at the next shifting. The more frequently the plants are changed the better will they retain, their,color.,, After the first three or four days the.changes need only be,made_ every other. 256 __ THe Orrawa NaTuRALIsT. day until the specimens are thoroughly dry. and no. longer moist or cold to the touch. . The drying usually. occupies from a week to. ten days, but varies according to the succulency of the plants, the. state, of the weather, the frequency of. the changes, and the degree of heat of the driers, The. inost convenient place for changing plants, if it can, be managed, is a table beside a guod hot range or stove, the top of which is free for use. If a damp drier be laid flat on the hot metal, steam at once begins to rise from it, and the moment it ceases to do so the paper is dry ; leave it for a second until it becomes so hot as to be barely touchable with the naked hand, then lay. it quickly on a specimen previously moved from the damp pile, and continue thus until the whole lot is changed. This plan is invaluable when driers are szarce, as sometimes happens on a botanizing trip, for by it the same driers, no matter how wet, can be used again immediately. A plan adopted by. myself and Professor Macoun a few years ago, while collecting in Nova Scotia, might be mentioned as worthy of remembrance should any of you ever be placed in similar circumstances. Though not to be tecommended for common use, as the specimens fall short of those obtained by the ordinary method, yet, if so situated that an abundance of driers is not obtainable, or if the weather be so foggy and wet that they cannot be properly dried, it will be found of great practical value. On the trip referred to, a large number of specimens had been collected, but so bad was the weather from rain and sea fogs that there was great danger of losing them all. Under these circumstances the thought occured to take advantage of occasional glimpses of sunshine in the following way ; each sheet of specimens was placed between two driers, which were spread in a single layer on the floor of an open balcony exposed to the sun. Pieces of board, logs, or bark placed in the sun would of course answer the same purpose as did the balcony. Small stones placed on the corners of the sheets prevented the wind disturbing them, and no pressure was used except the weight of the single drier them covering. An hour of good sunshine served to fully cure most plants. The plan, is only applicable to specimens previously somewhat wilted in the pressas the leaves of fresh or insufficiently wilted ones curled up in the absence of pressure. Nores on ‘tHe Srupy or Borany. 25T A collector’s work does not cease when his specimens “are dried: Plants are subject to the attacks of insects and it is therefore necessary to poison them in some way. ‘The best protection is corrosive sublimate dissolved in alchol, which is applied lightly to the specimens with a soft brush. It should be done as soon as the plants are dried, care being taken afterwards to leave them spread out until the alcohol has evaporated. The formula I used is : Corrosive sublimate. ........ .t.. 1% drachms. ALBION HCIG © 5 fons. oe Ye ee Soar, 1% ‘> PREMIO Nhe SG Grd «560 Le a wae See ee ee I2 ounces. Ail the work hitherto done, the collecting, drying and poisoning, is but the preparation for the formation of an herbarium, the specimens in which should be fastened on half sheets of stiffwhite paper, either by slips of gummed paper or by glue applied to the backs of the specimens themselves. For a few cents a supply of white gummed paper, sufficient to last for years, can be purchased at any printing establish- ment. A narrow slip of this is cut off, moistened with the tongue, and placed over the part of the plant to be fixed down, The advantage of this process over actually glueing the specimens to the paper is that, in case the plant has to be removed for examination or any other purpose, these slips can be easily lifted. ; In mounting plants care must be exercised to keep the pile form- ing each genus as nearly level as possible, by scattering the specimens over the sheets instead of placing them all in the centre. If the plants are small put some at the top of a sheet, some at the bottom, some on the right side and some on the left ; occasionally, in the case of large specimens, reversing them so as to have the thick stems and roots at the top. In no case should more than one species be put on the same sheet,but if small, two or more specimens of the same species may be so placed. The best size for mounting paper is what is known as the standard size, from its being the one used in the public herbaria of the United States. This size, 1614 x 11% inches, experience has determined to be the best. My own sheets, I am sorry to say, are smaller, being only 15 14x ro inches, but my collection was started and had grown to such a size before the standard was adopted, that to change it all would IHR - Fue Orrawa NaTurALisy. have entailed great labour and expense. I have therefore considered it advisable to continue as I began. ‘The Linnzan herbarium is on paper of the common fools-cap type, but this is much too small. -.. The labels to be attached to the sheets vary according to taste,the points. desirable of observance being clear type, neatness-and simplicity. They should not: be to- large nor yet too small. When a specimen is given you the accompanying label should always be mounted with it. Some collectors attach their labels permanently with paste or by having them printed on gummed paper, but I prefer to merely fasten them lightly at the sides thus allowing their removal should it ever become necessary to transfer the specimen to another sheet. All the sheets con- taining plants of the same genus are placed in genus covers, which are full sheets of stout, colored paper. They should measure about a quarter of-an inch more in width than the mounting sheets. The name of the genus is written at the bottom of the genus cover, or sets of genus labels can be purchased cheaply and one of these pasted on instead. The various genera are arranged under the order to which they belong and laid flat in large pigeon-hole compartments in a closed cabinet, or else placed in portfolios, which stand upright like books in a_ book-case. The herbarium is made complete by a list or catalogue of the plants it contains. Having thus described the method of collecting and preserving specimens, let us briefly consider the next step in the study of botany, viz. excursions. The object of collecting excursions should be three- fold : ist. To cultivate habits of observation and secure knowledge of habitats and the growing appearances of plants. 2nd, To gather specimens for the herbarium. 3rd. To secure material to work on during the study of structural botany. Even in the winter season excursions should not be entirely abandoned. The true naturalist ean always find something to admire, and much useful work can be done in observing the trunks, branches and buds .of trees and shrubs.-. Winter is, however, the time pre-— eminently fitted for herbarium work, preserving, mounting, labelling, Notes on THe Stupy or Borany. 249. cataloguing, and, if the necessary appliances are obtainable, - apex work with the microscope. The best place to begin collecting is where you live. Be your abode where it may there are surely some plant rarities near it, and the first goal to struggle for is a through knowledge of the resources. of your | own vicinity. When you have made a special study of the plants } there you may easily extend your researches. If on your excursions you can have the company of some older botanist so much the better, since from him you can get the names of the plants you gather and the prominent characters on which the naming is founded. I would, how- | ever, strongly advise you always to take home one or two unnamed _ specimens, on which to practice analysis, for it is only by such practice _ you can ever become so familiar with the orders as to be able to, at least pretty nearly, locate strange ones at a glance. The accumulation ofa mass of unnamed plants is to be avoided, lest a pleasant task becomes a wearisome labour, inspiring only disgust. Make it a rule to get your specimens named as soon as possible. If you have no one near to whoin you can show them, enter into correspondence with some botanist and arrange with him to name the packets you. may send him from time to time. You need not fear that your letter asking the favor will be unanswered. The wonderful spirit of fellowship, comradeship if I may call it so, existing among scientists, and evinced by their willingness to lend a helping hand to even the humblest votary, is to. me one of the greatest charms in scientific pursuits. But here a word of warning, —never send scraps of plants to be named, for though a good botanist can often identify them, it is unfair to ask him. His time is too valuable to be spent in guessing riddles. Courtesy also demands that in all correspondence the seeker after information should enclose stamps for return postage. In collecting a specimen for yourself, if it be at all rare, always, if possible, gather duplicates to be used in exchange. Under no consideration, however, obliterate a rare: species from any locality, and do not even make its whereabouts known to any except true lovers of the science. There are vandals, who, through mere vanity, would not hesitate to destroy the last survivor of @ ‘species ; nor. would they do it only unthinkingly. From the duplicates 260° THE OrrawA NATURALIST, of the best things around you a large variety of plants can be got by exchange. and the pleasure and profit in making a collection. is largely. due to the intercourse thus brought about with those of kindred. tastes. Nor is this confined to those in your own country; it is often necessary to have certain specimens from other regions, and you are. thus brought into correspondence with scientists in all parts of the world. Let your specimens be well made, and never send away a poor one unless it be of something very rare. A man soon becomes known by his exchanges, and if his specimens are poor he is made the subject of much unpleasant criticism and will in time be avoided by all good collectors. Always preserve the choicest specimen collected for your own herbarium, but after this send the best you have to the first correspondent who asks for it. Keep even a fragment of any species not represented in your collection until you get a better, but of your duplicat?s destroy any too poor to send away. Do not hoard up duplicates. The ‘man who studies science for science sake would sooner give away every specimen for nothing than allow them to remain buried like a miser’s gold. Make sure that all plants you send are. correctly named, and notify your correspondent whether they are. poisoned or not, Never promise a plant unless you actually have it or are positively certain of being able to get it, and keep a catalogue of your duplicates that you may be prepared at all times to answer a brother collector who applies for anything. The last stage in botanical study, and the one to which all the others. should be stepping-stones, is the woiking out of some of the many unsolved problems of plant life by independent and intelligent observation and experiment. The breadth of the field for exploration by originalobservation isimmense,as comparatively little is known of thelaws governing’ many ofthe phenomenaof plants. Forexample, littleisknown of the hosts of some of our parasitic plants, and in some cases it is even disputed whether certain plants, commonly considered such, are parasites at all; though all plants move more or less, we possess scanty knowledge of the nature of this movement in many of them, and still less of its objeet ; we know that cross-fertilization is generally necessary for the production of perfect seed, but in many. cases we do not know Nores ON THE Stupy or Borayny. 26L “ie particular agents that perform the work; we are aware that Eee eMsrciie flowers produce pods far more fruitful than the ordinary - blossoms, but we know almost nothing about the proportion of the kinds, or why a plant should be provided with two sets of blossoms, _ There are many other points just as vague, hints to which may be found in such works as Darwin’s “ Climbing Plants,” Bailey’s “ Talks Ajield,” Prentiss’ “ Mode of Distribution of Plants,’ and Kerner’s _ Flowers and their Unbidden Guests” ; enough, however, has been said to show that the way to discoveries new to science is Gpen to even the humblest votary. There is practically no limit to the papers that could ‘be prepared by many of you for this or similar societies ; papers both interesting and useful; papers of value to science; papers that I feel sure the “Orztawa Natura.ist” would gladly find room for. In conclusion, I would say, that if within his means, and they are very cheap, no student of botany should neglect to take at least one of the periodicals devoted to the science. The “ Bulletin of the Torrey Botanical Club,” the “ Botanical Gazette,’ and the ‘“ American Naturalist” are among the best. The first two are devoted entirely to botany, the last takes up other sciences as well. I take it for granted of course that all of you are already subscribers to your excellent local Natural History monthly. If I have trespassed too much on your time, or wearied you with my effort to make plain to you some poiits on the study of botany, I pray you pardon me. Each of you who takes up this charming science will, I have no doubt, see modifications that you think might _ be advantageously made in the methods suggested. Should it be so, by all means adopt them. The method employed is of little importance provided only it brings about the great aim and end of the study, which is to learn to observe and compare. Do this honestly and you cannot fail to become lovers of nature, and, as lovers of nature, better and happier men and women, men and women in some degree approaching _the illustrious scientist of whom was sung :— : ; : : ** And Nature, the old nurse, took oS eee _ The child upon her knee, Saying: ‘ Here is a story-book Thy Father has written for thee.’ < a 2. ’ 5 <5 5 z ke THe Orrawa NAvTurRAList. — ‘Come. wander with me,’ she said, | : ‘Into regions yet untrod ; bea And read what is still unread F - In the manuscripts of God.’ » And he wandered away and away ee With Nature, the dear old nurse, Who sang to him night and day The rhymes of the universe. And whenever the way seemed long, Or his heart began to fail, She would sing a more wonderful song, Or tell a more marvellous tale.” GENERAL INDEX OTTAWA NATURALIST, VOL. IX,, AND 1895-'96, Transactions of the Ottawa Field-Natupalisis’ Club, Vol. XI. 4 Acetylene, the new illuminant, pager byt, 5. Marsh........ \ Airat Ottawa...... Ami, H. M.—Fossil ‘Insect s “feo the Leda clays of Ottawa and LW IDADEr> ..-. <. Ami, H. M.—Notes on some fossils from the Trenton of Highgate Sgrings, Vermort, near the Canadian boundary line, paper. Annual Report of Council of Ottawa Field-Natuaralists’ Club, 1894- os ee Anthropology, the present position of American, note of paper by Prof. John Campbell......... Archeology ; Notes on the Antiqut- { ties of Lake Deschenes, by Ds Mees Sowter. >... . ; Argon, a newly discovered consti- tuent of the atmosphere, F. T. ‘ Bete PADET = 20545 0-2 wre Attidze from Canada . Aylmer, Que,—Note on Geology of Barlow, A. E.—-On some Dykes containing *‘ Fluronite ” : Barlow, A. K.—Geology of the Ottawa Ship Canal Barlow, A. E.—Review of paper by Dr. Adams on ‘* A further contribution to our knowledge of the ‘* Laurentian ” Besserers, Ont., Fossils at. Botany, the study of, paper by. ‘Dr. Surgess a A ee ee ae Botany, Notes:Ones 3 onsen Oe: Chamberlin, Mrs. Agnes—Cava- dian Wild Flowers, Review of, by [>. Stletcher: -.se> eee Laflamme, Rev. J.C. K., on ‘*Cor- nut’s Canadensium [’lantarum Ve B05) 9 | PAM ect aie a Ss Kare Manitoban Plants, James Pletcher "0. wc onset. 2i eee Bushy-tailed Wood Rat, Neotema cinerca) paper by C. deBlois Green. Dh: wan Hethio'y sine eae oP Burgess, Dr. T. J. W., ** Notes on the Study of Botany,” paper. . Cambro-Silurian Rocks of | East Manitolia it ¢ .ni,.ace Cee Camera Club, Ottawa... Chemical Notés <)020. 3. Sao McGill, A. and YT. Macfarlane— Note of paper on ‘* Viscosity in Liquids*t, <\ceuatesenyee Macfarlane, Thomas, ‘‘ On the Estimation of Starch,” paper OLE... vaimaes od 208 168 241 229 225 77 Fe ey Pte oo ity li. Tue Orrawa NATURALIST. Conchology. Notice of papers OD, {EtG Wa Oh te rE Latchford, F. R. (‘* L.”)—Ottawa and Casselman Shells........ 156 Whiteaves, J. F.—‘‘ Recent Mol- lusca from the Headwaters of the Ottawa’ sete eee hier 22 Canadian Spiders, by J. H. Emerton, review by H. M. A. 182 204 Ganadian® Shrewseencaa5 eaten 236 Canadian Echinodermata from At- lantie Coast 59 Caribou, Hunting the Barren eround, by Frank Russells epi. eee 48 Casselman Shells, F. R. Latchford. 156 Central Experimental Farm, Native sBYees, INNTAOEe ess a. 108, 132, 141 Cilia, paper by Prof. E. E. Prince. 81 GlubsWntes: feet heed eee eee 61 Colourless Blood in Animals, by Prof. Be He GPYInee Se mechs ana 6 Golen plera seis che ee eee 179 Cornut, J.--Canadian Vlants...... WH Council of O.F.N.C. for 1805-96.. 61 Corresponding Members.......... 5 Craig, J. (‘*J.C.”)—-Report of Ex- eursion'to/Galelfas 2 fe.c. cm: 94 Crystals of Huronite in Diabase from Algoma, (illustrated).... 30 Crystals, paper by W. F. Ferrier... 217 Dale, T. Nelson—-The KRenssellaer Grit Plateau—Notice of by Dr. 1 EON eee 0 | Fee ane Sa ele 9 Dana, James Dwight, Obituary Notice Obi sot tae es eee 35 Dawson,-G. M., referred to... 22% 73 Dowling, D. B.—Notes on the Stratigraphy of the Cambro- Silurian Rocks of Eastern Mantloba sat. - Santas) se ates 65 Dykes, containing ‘* Huronite,” by A de AR IONG eters othe sie het ad 25 Echinoderms of N. E. America, A. Ba Viertll Lain o Notes. on. ogee Ferrier, Walter F., Crystals, papers Ferrier, WF: ~ Exythrite ; Stilp- nomelane var. éhaleadiee: etc. Flora of Ontario, hy Prof. Macoun i. 196, 2 Yossils Insects ftom the Leda clays of Ottawa and vicinity, by LE a M. Ami-.... 7.2.23 . 198 Fossils, mentioned ....70, 56, 190, 205 215, 2 Geology, Notice of papers on..... Adams, Frank D.-— ‘‘ A. further — p. contribution to cur knowledge — ot the Laurentian ”—Review y A. E. Barlow...c.. 2.58 eee ae H.M. —“Notes on Canadian Fossil Bryoz02.”’...0s/isss cael Ami, H.M.—* Notes on a collec- E. tion of Silurian fossils from Cape George, Antigonish Co., N.S.,— 4 be - Geology (cont'd) :— ri aaey with descriptions of four new 0 Sea rrr ~ Balen Prof. L.W.— **Preliminary Report on Geological Investiga- _ tions in South Western Nova geascotia.”” - Beecher, Chas. EF. »‘Structure and a appendages of Trinucleus,” r Beecher,C.E., ‘‘The Larval Stage # of Trilobites”—Notice of.. _ Chalmers, Robert, ‘‘On the Glacial Lake St. Lawrence” of Prof. W. Upham, Note of......... Coleman, A. P.,‘‘Antholite” from Bizivir, Ont., Note of........ Coleman, A. P., ‘Glacial and _ Interglacial Deposits near Toronto,” review of by H. M. a a Ww — ff ah Dana, J.D., ‘‘Manual of Geology,” "Notice. of ..... Dawson, Sir Wm. J., Tertiary x Plants, Notice of paper on _ Dawson, G.M. and R. G. McCon- nell. ** On the Glacial Deposits ‘of South Western Alberta,” _ fo Se Ells, R. W., ‘‘ The Potsdam and Calciferous Formations of ( due- bec and Eastern Ontario ” Girty, Geo. H., ‘‘Development of the Corallum of Faz sites For- best, var. occidentalis” Se, C.H., Notice of paper by, Se Syenite- -gneiss, (Leopard Sock) of Ottawa Co......... Ilarrington, B. J., Notice of paper b y Jones, T. Rupert, ‘‘ On Some Fossil Ostracoda from Canada” Marsh, C., European and American Dieturs, Review of ke Ree enw, G. F., ‘‘ The Organic Remains of the Little River a ESS a re ‘Matthew, G. F., Notice of paper by —L. Cayeux on ‘* Early MERRIE Sieg poop are as ass Taylor, Frank B., ‘‘ Niagara and the Great Lakes,” Note of ler. Frank B., ‘‘ The Second ke oy ea Whiteaves, J. F., ‘‘Descriptions of Eight New Species of Fossils from the Galena (Trenton) gi . 4 ".. Lan a © ae on or 4 a rw & Bi a gf Ps Shar a “lS a Li) RS oe we bee a ~ +. - ~~ 4 » : - INDEX. iii. 2I 151 20 211 57 Geology (cont'd) : Limestones of Lake Winnipeg and the Red River barge Notice ot Dy: i> We Bias 207 Whiteaves, J. F., ‘* Notes on some Fossils from’ the Cretaceous Rocks of British Columbia, with descriptions of two species that appear to. be new”™..... 206 Williams, H. S., ‘* Devonian Fossilsin Strata of Carboniferous Age; ? Norrof. );. 5 scab aeewe 90 Winchell, W. H., ‘‘The Stratigra- phic Base of the Taconic or Lower Cambrian”: 2... 2... 56 Wright, G. F., **Glacial Phen- omena of Newfoundland and Labrador,” Note of so .<.... 90 Geological Notes.............. Hoffmann, G. C., Contributions,” Note of...... 90 Ostracoda from Canada, T. R. PONS), KA kee «cena cee 21 Protozoa, Early, Notice of...... 56 The Saguenay Gorge, Note on... 181 Geology of Aylmer, Notice of paper on by T. W. E. Sowter .2:-2. 58 ‘** Glacial Deposits in Europe and America,” by Jas. Geikie, Notice of by H. M. Ami..... Green, C. de Blois, Some Account of the Bushy-tailed Wood Rat of British Columbia”’........ 225 Halkett, Andrew, Paper on ‘‘Ottawa PitylHopods ” .<...¢ ons seen 87 Harrington, Dr. Be J.—Analysis by 34 Hickman, W. Birds observed at Pictou, x $s 1805 409}, >be 231 Highgate Springs Fossils, H. Ami. 215 How Rocks are fermed, Paper by RW. OEllss x 3.wic eet asin 157 Hunting the Barren Ground Caribou, by Frank Russell... ss.8% soe 48 Huronite, On some Dykes contain- ing, by A. E. Barlow ........ 25 Hydrachnida: ai fata es eet 187 Hymenopters:, ¢-%,5 wo eee 180 Iroquois, Nat. Science Association, Notes of and list of officers...: 79 Karyokinesis of the Ovum, by FE. Wilson; reviews... sa. ueee ets 205 Koenike, Dr. F., North American Water mites ake. «cee 187 Labrador, Lecture by Mr. A. P. Low, Notes 0tie