XXIV 
PHILOSOPHICAL SOCIETY OF WASHINGTON. 
1888. 
1889. 
1882. 
1874. 
1879. 
1886. 
1886. 
Hayes, Dr. C. Willard (Charles Willard), 
Geological Survey. 1616 Riggs place. 
Hayford, J. F. (John Fillmore), 
Coast and Geodetic Survey. 
Hazen, Prof. H. A. (Henry Allen), 
P. O. Box 427. Weather Bureau. 1416 Corcoran street • 
Hensiiaw, H. W. (Henry Wetherbee), 
Bureau of Ethnology. 
Hill, G. W. (George William), 
Nautical Almanac Office. 
Hill, Prof. R. T. (Robert Thomas), 
910 Fifteenth street. 
Hillebrand, Dr. W. F. (William Francis), 
Geological Survey. 506 T street. 
13 Iowa Circle. 
314 Indiana avenue. 
1884. Hitchcock, Romyn, 
National Museum. 
1885. Hodgkins, Prof. H. L. (Howard Lincoln), 
Columbian University. 1830 T street. 
1873. Holden, Prof. E. S. (Edward Singleton), 
Lick Observatory, Mt. Hamilton, California. 
1890. Hollerith, Herman, 
501 F street. 
1887. Holmes, Jesse H. (Jesse Herman), 
1811 I street. 
1879. Holmes, W. H. (William Henry), 
Bureau of Ethnology. 
1888. Howard, L. O. (Leland Ossian), 
Department of Agriculture. 
1874. Howell, Edwin E. (Edwin Eugene), 
612 Seventeenth street. 1812 K street. 
1885. Iddings, Joseph P. (Joseph Paxson), 
Geological Survey. 730 Seventeenth street. 
1891. James, J. N. (John Nelson), 
Naval Observatory. 3035 O street. 
1890. James, Joseph F. (Joseph Francis), 
Department of Agriculture. 1443 Corcoran street. 
1880. James, Rev. Owen, 
Hatboro, Pennsylvania. 
3112 Q street. 
3006 P street. 
1444 Stoughton street. 
3023 P street. 
