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Show 7 DRAUGHTSMEN. Charles Herman, the whole year. I J. E. Weyss, the whole year. J . C. Laug, the whole year. CLERICAL. F. Klett, the whole year. ' J. D. McChesuey, Nov. 27, 1874, to end oi George M. Lockwood, the whole year. year. J. B. Minuick, the whole year. , W. D. Wheeler, the whole year. The only casualty during the year was that of R. J. Ainsworth, topographer, who lost his life by the accidental discharge of his pistol, at Tierra Amarilla, N. Mex., on the 4th of September, 1874. The circumstances of his melancholy death are stated by Dr. Yarrow ( in charge of the party in which Assistant Ainsworth was serving) in his report. ( See Appendix 11.) Hearty assistance and co- operation have been rendered and maintained by each and all of the members of the survey. Thanks are due to Dr. Elliott Coues, Uuited States Army, Prof. £. T. Cresson, Messrs. Theo. L. Mead, W. H. Edwards, E. H. Stretch, C. R. Osten- Sacken, Henry Ulke, Dr. P. H. Uhler, Prof. Cyrus Thomas, and Dr. Hagen, for kind assistance in the compilation of data derived from zoological collections and observations in the field. The officers of the Smithsonian Institution aud several other gentlemen connected therewith have rendered valuable assistance, as have also Dr. George Vasey, of the Agricultural Department, and Mr. Sereno Watson, of the Botanical Gardens, Cambridge, Mass. It becomes a pleasure to speak of the cheerful co- operation of many officers of the Quartermaster's, Sub sistence, and Medical Departments, and Ordnance Corps, and also that of the commanders of the several military divisions, departments, districts, and posts touched during the operations of the survey. The officers of the United Statea Naval Observatory and United States Coast Survey have likewise extended kind assistance. Despite the many obstacles that have militated against the full and fair development of the mapping on a large scale of the mountains of the western interior, this work has gone on at an energetic and successful pace, which from year to year ( as its objects and results have become more patent) it is believed has won for it a better recognition. The delineation of the surface of the western mountain- region, and a description of its resources, offer a wide and extensive field, in which, as I have endeavored by former reports to show, the Government by right of domain, and for want of knowledge, is most largely interested; aud it is only by the constant attack of bodies organized for systematic work that the physical structures of the waste aud unknown lands along the untenanted mountain- frontiers shall be brought to light and made known not only for the uses of the Government, but for all the people and for all time. ASTRONOMICAL. In this branch of the survey, the work during the year has comprised the determination of the astronomical co- ordinates of the main stations at Las Vegas and Cimarron, N. Mex., Sidney Barracks and North Platte, Neb., aud Julesburg, Colo. The usual temporary field- observatories and observing- piers have been erected at these points, and Dr. F. Kampf and party conducted the observations, communicating with the observatory of the survey at Ogden, Utah, in charge, for the season, of assistant John H. Clark. |