| OCR Text |
Show 70 the Indian tribes visited, their customs and relations, & c. ( See Appendix H, 14.) Dr. O. Loew presents a report upon the physiological effects of a very hot climate, which, while somewhat foreign to the general subjects of investigation by the expedition, may yet, as stated by him, be one " deserving attention in connection with the exploration or occupation of the Colorado Valley, and one not heretofore treated upon to any great extent." ( See Appendix H, 15.) Philology.- Mr. Alb. S. Oatchet has examined several vocabularies collected by members of the expedition, and presents an analytical report upon idioms spoken in Southern California, Nevada, and on the Lower Colorado River. ( See Appendix H, 16.) PUBLICATIONS. During the year the following maps have been published: Progress Map. Crayon Atlas Sheets 49 and 67. Geological Atlas Sheets 50, part of 58, and 66, 59 and 67, 75 and 83. Map showing restored outline of an ancient fresh- water lake, (" Lake Bonneville.") Geological Atlas title- sheet. Topographical Atlas Sheets 61 B, 61 o, 61 c, ( sub.,) 69 D, 75, 76, and 83. And the following reports: Preliminary Report, 1869. ( Revised edition.) Volume III, ( Geology.) Volume IV, ( Paleontology.) Part L Invertebrates. Volume V, ( Zoology.) ( Not ready for distribution.) Progress has been made upon Volumes I, II, VI, and VII, and it is expected to have the MS. of three of them in the hands of the'printer by January 1,1877. The manuscript for Catalogue of Declination of 2,018 stars has gone forward. DIVERSION OF THE COLORADO RIVER. By Department letter of May 6, 1875, in addition to the regularly organized work of the season, a special preliminary examination as to the feasibility of diverting the waters of the Colorado River of the West for purposes of irrigation was authorized, and, as stated in my last annual report, Lieutenant Bergland was intrusted with the charge of a separate party for this purpose. Both a summer and a winter trip were made. In submitting bis report, Lieutenant Bergland, after describing the organization of the party, the routes followed, and discussing the question of the diversion of the river, decides, as the result of his first trip, that it cannot be successfully done at any point between the foot of the lower Grand Canon and the head of the Colorado Valley, an approximate distance of 326 miles, because of the outlying ridges with high passes, through some of which the river has cut its way; and as a result from his second trip, he concludes that no such diversion can be successfully made at any point along the present channel of the river within the territory of the United States. As shown in my report to the Chief of Engineers of April 27, 1875, in pursuance of ja communication of Mr. E. F. Beale to the President, under date of March 20,1875, no diversion of the river on a large scale could practically be made between the junction of the Green and Grand rivers and the point of its emergence from the Grand Canon, near which |
