HERRON, W. H., a,
Geological Survey. 1008 H Street.
HILL, GEO. A., a,
Naval Observatory. 2626 K Street.
HILL, PROF. R. T.,
State Geological Survey, Austin, Tex.
HINMAN, RUSSELL,
In care Van Antwerp, Bragg & Co., Cincinnati, O.
HODGKINS, PROF. H. L., a,
Columbian University. 1511 Tenth Street.
HODGKINS, W. C.,
Coast and Geodetic Survey. 416 B Street NE.
HOLLERITH, HERMAN,
Room 48 Atlantic Building. 3107 N Street.
HOPKINS, C. L.,
Department of Agriculture. 1004 H Street.
HORNADAY, W. T., a,
National Museum. 405 Spruce Street, Le Droit Park.
HOWELL, E. E., a,
48 Oxford Street, Rochester, N. Y.