INDEX. 505 



Pagfi. 



Smithson. Character of bequest of 23 



fund, increase of ■ ] 00 



Will of 7 



Smith, Sydney. Memoir of 220 



Sparrows. Presented by Zoological Garden, Hamburg 51,121,122 



Spofford, A. E. Librarian of Congress 57 



Stanton, Colonel Phineas. Death of 49 



Stimpson, Dr. Wm. Hydrobiinae 22 



Marine inAertebrata 52 



Stockholm Academy of Sciences. Letter from 125 



Stocks. Sale of 99,100 



Stone. Age 135 



St. Petersburg Academy of Sciences. Letter from 120 



Sumichrast, Prof. Explorations 4ii 



Surgeon General. Meteorological system 27 



Swaim, Jas. Acknowledgments to '39 



Swan, J. G. Explorations 44 



Swett, Jno. School architecture 24 



Taylor, Edw. Burnet. Early mental condition of man 391 



Taylor, W. B. Acknowledgment to - . 55 



Eeport on system of numeration 119 



Telescope. Silvered glass, by Prof. Henry Draper 21 



Telegraph. Effect of electricity on 322 



Temperature. Condition of, January 9, 1 868 323 



Table of mean, in winter 198 



Tables to be prepared 27 



Thompson, Benjamin. Memoir of 203 



Tides. Prize question 482 



Tonto Apaches. Notes on 417 



Torrey, Dr. Jno. Plants 52 



Transactions of learned societies. Index of 58 



Transportation. Facilities granted 39 



Trumbull, Hon. Lyman. Acts of, as Kegent 108, 112, 113 



Tyndall, John. Memoir of 223 



Uhler, P. E. Hemiptera 52 



Van Bokkelen, J. L. School architecture 24 



Van Patten, Dr. Collections by 48 



Virginia. Interest not paid 100 



Volcano in Nicaragua 467 



Voltaic pile. Peltier's researches 182 



Von Frantzius, Dr. Collections by 48,49 



Wade, B. F. Acts of, as Eegent 108,109,112,113 



Wallach, Eichard. Acts of, as Eegent 108,100,112,113,115 



Eeport of Executive committee 101 



Eeport of Building committee 102 



W"ashington. Interests of city of 17 



Weights and measures. New system proposed 110 



Eeport on new system 119 



Wells & Fargo Express Company. Acknowledgments to 39 



Wernigk, Dr. C. Collections by 45 



Wesley, Wm. Agent for exchanges 39 



Western Union Telegraph Company. Explorations 41 



White, Captain T. W. Explorations 43 



Whitney, J. D. Account of cave and skulls in California 406 



