LETTER FROM THE SECRETARY OF THE SMITHSONIAN INSTITUTION, ACCOMPANYING The annual report of the Board of Regents of the Institution to the end of June, 1892. To the Congress of the United States: SMITHSONIAN INSTITUTION, In accordance with section 5593 of the Revised Statutes of the United States, I have the honor, in behalf of the Board of Regents, to submit to Congress the annual report of the operations, expenditures, and condition of the Smithsonian Institution for the year ending June 30,1892. I have the honor to be, very respectfully, your obedient servant, S. P. LANGLEY, Hon. LEVI P. MORTON, President of the Senate. Hon. CHARLES F. CRISP, Secretary of Smithsonian Institution. Speaker of the House of Representatives. ANNUAL REPORT OF THE SMITHSONIAN INSTITUTION TO THE END OF JUNE, 1892. SUBJECTS. 1. Proceedings of the Board of Regents for the session of January, 1892. 2. Report of the Executive Committee, exhibiting the financial affairs of the Institution, including a statement of the Smithson fund, and receipts and expenditures for the year 1891-292. 3. Annual report of the Secretary, giving an account of the operations and condition of the Institution for the year 1891-292, with statisties of exchanges, etc. 4. General appendix, comprising a selection of miscellaneous memoirs of interest to collaborators and correspondents of the Institution, teachers, and others engaged in the promotion of knowledge. TV Fage. Indian Remains on the Upper Yellowstone, by William S. Brackett American Inventions and Discoveries in Medicine, etc., by John S. Billings.. 613 The Inventors of the Telegraph and Telephone, by Thomas Gray 639 Progress of Astronomy for 1891 and 1892, by W. C. Winlock. 681 Secretary's Report: LIST OF ILLUSTRATIONS. Fig. 1, plan of the National Zoological Park.......... Fig. 3, principal animal house of Zoological Park.. Geological history of the Yellowstone National Park: |