Missouri Botanical Garden PETER H. RAVEN LIBRARY Pagination Note: Since many of the items lack a specific page number, the page number displayed online refers to the sequentially created number each item was given upon cataloging the materials. /2a 7 8 9 10 Missouri BOTAN ICAL copyright reserved garden > C— t./x- tfuc. $L JJ. 2/, cm i Lm;, fm. lil n un M/SSourj 5.-57; _ (Skcinrr r- ' • ' GAR DEtf ■ 0R ': £ papers 6 7 8 9 10 copyright reserved A. 164 TRANS. OF THE ACAD. OF SCIENCE. H' V energy of his character, and with but a single man as his escort, and no other guide than his compass, he determined to continue on his course. After a wearisome travel of many days, and having encountered many privations and dangers, he and his companion, Cadotte, arrived safely, but in almost a starving condition, at the Flathead Village, situate on the western slope of the Rocky Mountains. In accomplishing this part of his arduous task, Dr. Evans passed directly through the heart of the Blackfeet country, and travelled a distance of more than two hundred miles in the main chain of the Rocky Mountains before he succeeded in finding a passage to the valley beyond. It is mueh to be regretted that the credit of the discovery of this important pass, which unquestionably belongs to the subject of the present sketch, has been unjustly transferred to another. It should have been named in honor of Dr. Evans instead of Gadotte, since it is well known that the latter person had no knowl- edge of such a passage, and, in fact, had not even been in that region before he went there under the guidance of Dr. Evans. After a few days’ rest at the Flathead Village our traveller resumed his journey, and without encountering further difficulties, reached Oregon city with much valuable information concerning the extensive district of country through which he had passed. In the prosecution of the geological survey of Oregon and Washington, Dr. Evans was actively engaged for nearly five years, during which period his travels extended over a large portion of those Territories. The results of his important labors, embracing a large amount of infor- mation relating to the geology, topography, geography and natural his- tory of that interesting portion of the American continent, are embodied in his large report submitted to, and ordered to be printed by Congress at its last session. It was placed in the hands of the Public Printer only a few days previous to the death of its lamented author, and it is a matter of deep regret, that, owing to some informality, its publication must be delayed to await the further action of Congress. It is earnestly hoped that Congress will, at an early period, make the necessary pro- vision for tjie printing of this important document, the preparation of which has cost such a large expenditure of labor and money, and which prom- ises to be of the highest value to science and the people for whose benefit the survey was ordered. September* 2, 1861. The President, Dr. Engelmann, in the chair. Seven members present. The following donation to the library was received: Bull, de la Soc. Imper. zool. d’Acclimatation, Paris, No. 7, Juillet, 1861, from the Society. Mr. Holmes presented from Dr. B. F. Shumard the follow- ing skulls from Texas : Felis pardalis , Linn. (Tiger-cat), from Travis Go.; Felis onza , Linn. (Jaguar), from Hays Co., and JDicotyles torquatus (Peccary), from Travis Co. Dr. Engelmann made some remarks on the temperature and humidity of the p^ast three summer months. . June and August were by more than two degrees warmer than the averages for these months, while July was cooler. The quan- tity of rain for each of these months was below the average 0 1 2 3 4 5 6 7 8 9 10 Missouri . . Botanical cm copyright reserved garden JOURNAL OF PROCEEDINGS. 163 so much interest among scientific men.* And such was his energy that, almost unaided, he gathered in a few weeks the extensive collection of fossil bones which furnished to Dr. Leidy the materials for his splendid memoir on the “ Extinct Fossil Fauna of Nebraska.” At the same time he collected a large and elegant series of Cretaceous fossils, some of which were described and figured by Dr. Owen in his final ^report on the Geology of Iowa, Wisconsin and Minnesota. The notes made by Dr. Evans on the geological features of that remarkable region were likewise of the highest interest, and from these Dr. Owen has compiled one of the most instructive and beautiful chapters to be found in his valuable report. In addition to his scientific duties, Dr. Evans had almost exclu- sive control of the business department of Dr. Owen’s survey, which of itself involved an immense deal of labor. The satisfactory manner in which he discharged these onerous duties, often in the midst of dis- heartening privations and even danger, commanded the highest esteem and confidence of Dr. Owen and his associates, while his goodness of heart, uniform courtesy, and self-sacrificing disposition, secured to him their warmest friendship. After the completion of the field work of the North-west Survey, (1850,) Dr. Evans received the appointment of U. S. Geologist for Oregon, which he accepted, and immediately entered upon the duties of his new office with his usual energy and zeal. The survey was organized by the appointment of Dr. B. F. Shumard to the position of Principal Assistant, who shortly after embarked for Oregon, by way of the Isthmus of Panama. Dr. Evans determined to revisit Nebraska, and thence pro- ceed overland to Oregon by an unexplored route, with the vie^ of deter- mining the general geological and topographical features of a vast region, then almost unknown to science, and of ascertaining if there existed a nearer way from the Upper Missouri to the Oregon coast than that usually travelled. He proceeded to St. Louis, and there spent a few days in making preparations for. his journey! He then took passage for Fort Pierre Chouteau, on board a steamer Belonging to the American Fur Company. During this passage, which occupied nearly a month, cholera to an alarming extent prevailed among the passengers and em- ployees of the Fur Company on board, several of whom died, and the mortality would have been far greater but for the kind attention of Dr. Evans, who, though himself laboring under an exhausting diarrhoea, allowed himself no rest, but in the triple capacity of physician, nurse and compapion, was ever at the bed-side nf fhe^sick, administering to their wants, and encouraging them by his cheerirfg ^vords. From Fort Pierre, Dr. Evans again visited the M^uvaises Terres, where in a short time he succeeded in obtaining a large collection of the fossil fauna of that region, even more extensive than his former one, and embracing a considerable number of new and interesting species. On his return to the Fort he set about preparing for his long journey, which from the hostility of the Blackfeet and other Indian tribes, to- gether with the difficulties incident to the route, was regarded by the Indian traders as extremely hazardous ; hence ft was exceedingly diffi- cult to find either guides or hunters willing to accompany him. After much persuasion, however, he succeeded in procuring the services of two hunters and a half-breed guide, they agreeing to go with him as far as the Flathead Village. With this meagre escort he started from Fort Pierre, but scarcely had he reached the borders of the Blackfeet country ere his hunters became alarmed, and unceremoniously left his camp during the night and returned to the Fort. Under these discouraging circumstances a person less courageous than Dr. Evans would have turned back ; but difficulties served only t^ develope the indomitable * To Dr. Hiram A. Prout is justly due the credit of having first called attention to the existence of such remains in that region by his excellent memoirs of Palasotheroid and other bones, published in Silliman’s Journal. 0 1 2 3 4 5 6 7 8 9 10 Missouri . . Botanical cm copyright reserved garden n(C d mm ■■ m 6 7 8 9 10 Missouri . B Botanical copyright reserved garden iMPOTIEBEMGr & CKSftrm Cor .4?* & Olive Sts., St.Louis. Missouri Botanical' ©arbw* George Engelmann Papers cm copyright reserved gYYdYn 0 1 2 3 4 5 6 7 8 9 10 Missouri . Botanical cm copyright reserved garden trtui+rr^ $&c>4ih£ Si)H *&**■•$ 7 H 0 1 23456789 10 Missouri Botanical cm copyright reserved garden cm Missouri Botanical Garden George Engelmann Papers 6 7 8 9 10 copyright reserved Missouri Botan ical Garden cm 2^7 j*™** worge Engelmann Papers i* •• cm copyright reserved 01 234 56789 10 cm copyright reserved !2s£ Zr 3 o *-r. £.*.*< 'ZZZc I ^ /--t 1 n /* 7^ &»*> /? #64 : '--v, -; - 0 < r • H 7 yr> m £*» £ <_ X 5 **■0,4 »- ~ 873 y ^ (]7Q«E^)v 0 1 2 3 4 5 6 7 8 9 10 Missouri Botanical cm copyright reserved garden 0 1 2 3 4 5 6 7 8 9 10 cm copyright reserved Missouri Botan ical G A R D E N 0 1 2 3 4 5 6 7 8 9 10 Missouri Botanical cm copyright reserved garden 3or . 4 1 * & Olive Sts.. St. Louis. tA'S ? 0 ' 3 GE.oR Gt cm MISSOURI GEORGE OiSEtW ^ 14 PAPERS 0 1 2 3 4 5 6 7 8 9 10 Missouri Botanical cm copyright reserved garden ZKA WISLIZ ENUS — ATMO SPHERIC ELECTRICITY . 115 Additional BemarJcs on Atmospheric Electricity. By A. Wislizenits, M.D. The delay in the publication of this volume enables me to add to my observations of atmospheric electricity in 1861, the result of my observations in 1862. The latter observa- tions have been made in the same manner and by means of the same fine glass thread, which, after many thousand tor- sions, proves as good as ever. I present herewith in tabular form the general result of my observations in 1861 and 1862. I. Monthly mean of Positive Atmospheric Electricity in 1861 and 1862, at St. Louis , Mo., based upon daily observations at 6, 9, 12, 3, 6 and 9 o’clock, from morning till night . Mean of Jan. Feb. Mar. Ap’l. May. Jun. Jul. Aug. Sept. Oct. Nor. Dec. Year. 1861*.16.5 12.1 9.8 8.8 7.8 4,0 3.7 3.4 3.0 7.1 10.0 14.3 8.4 1862.. .12.1 16.0 9.4 10.6 7.5 3.0 2.2 2.3 3.0 7.7 12.6 13.9 8.4 * This table of 1861 differs in some decimals from that published on page 66 and in Dia- gram No. 1. Having discovered some errors, I calculated all my observations once more, and give now the present as the corrected table. II. Monthly mean of Temperature and of Relative Humidity in 1861 and 1862, at St. Louis , Mo., based upon daily observations , cotemporaneous with those of Atmospheric Electricity . TEMPERATURE. Jan. Feb. Mar. Ap’l. May. Jun. Jul. ,15 <0 RELATIVE HUMIDITY. 1 Jan. Feb. Mar. Ap’l. May. Jun. Jul. Aug. Sept. Oct. Nov. Dec. 1861. . .72.2 63.3 64.5 61.5 66.3 70.8 66.3 69.6 77.3 76.6 69.0 74.3 1862.. .85.3 .73.9 70.8 67.0 57.3 67.0 66.8 64.3 74.2 67.2 69.5 74.6 III. Yearly mean of Positive Electricity of Temperature , and of Relative Humidity of the Atmosphere , at the hours of 6, 9, 12, 3, 6 and 9, from morning till night , based upon daily observations at these hours through the years 1861 and 1862, at St. Louis , Mo. | 1862 . 1861 . ELECTRICITY. t3P.l 10.0 10.0 .. 59.3 54.3 .. 58.0 53.6 48.9° F... 54.9 61.6 63.6 .., 48.9 55.0 60.9 62.3 ... RELATIVE HUMIDITY. 86.4 71.3 60.3 57.2 65.1 77.3 5.3 70.6 60.0 57.5 67.6 78.0 , ,(U : 7a . • ^ ^ ^ 0 1 2 3 4 5 6 7 8 9 10 Missouri Botanical copyright reserved garden cm 0 1 2 3 4 5 6 7 8 9 10 Missour. Botanical cm copyright reserved garden