XX 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
1871. Casey, Gen. Thomas Lincoln, U. S. A. 
War Department. 1419 K street. 
1882. Caziarc, Capt. Louis V. (Louis Vasmar), U. S. A., 
Fort Adams, Newport, R. I. 
1883. Chamberlin, Pres. T. C. (Thomas Chrowder), 
University of Wisconsin. Madison, Wis. 
1888. Chapman, D. C. (Daniel Currier), 
Coast and Geodetic Survey. 110 C street SE. 
1885. Chatard, Dr. Thos. M. (Thomas Marean), 
Geological Survey. The Portland. 
1874. Chickering, Prof. J. W. (John White), 
Deaf Mute College. Kendall Green. 
1880. Christie, Alex. S. (Alexander Smyth), 
Coast and Geodetic Survey. 
1877. Clark, Edward, 
Architect’s Office, Capitol. 417 Fourth street. 
1874. Clarke, Prof. F. W. (Frank Wigglesworth), 
Geological Survey. 1612 Riggs place. 
1890. Colonna, B. A. (Benjamin Azariah), 
Coast and Geodetic Survey. 
1880. Comstock, Prof. J. IT. (.John Henry) 
Cornell University. 
1874. Coues, Dr. Elliott, 
Smithsonian Institution. 
1873. Craig, Capt. Robert, U. S. A., 
War Department. 
1879. Craig, Dr. Thomas, 
Johns Hopkins University. 
1889. Cross, C. Whitman (Charles Whitman), 
Geological Survey. 730 Seventeenth street 
1886. Cummings, Prof. Geo. J. (George .Jotham), 
Howard University. 
1884. Curtis, George E. (George Edward), 
Smithsonian Institution. 
1871. Dall, Wm. H. (William Healey), 
National Museum. 
1886. Darton, N. IT. (Nelson Horatio), 
Geological Survey. 
138 B street NE. 
Ithaca, N. Y. 
17*26 N street. 
1822 I street. 
Baltimore, Md. 
1227 M street. 
1119 Twelfth street. 
