Results for "African Americans -- Washington (D.C.)"
Daniel Appleman
- Date: 1975
- Creator: Sandved, Kjell Bloch 1922-
- Creator: Sandved, Kjell Bloch 1922-
Dr. Anson Hines
- Date: 1986
- Creator: Ploskonka, Jeffrey
- Creator: Ploskonka, Jeffrey
Joseph Henry and Spencer Fullerton Baird Aid Pacific Railroad Surveys
- Date: April 1853
Replica of Joseph Henry's Princeton Oscillating Electromagnet Motor
- Date: c. 1830s
- Creator: Unknown
- Creator: Unknown
Data on Instruments Loaned and Number of Observers for the Smithsonian Meteorological Project
- Date: 1872
- Creator: Unknown
- Creator: Unknown
J. F. G. Clarke Examines Microlepidoptera
- Date: c. 1950s
- Creator: Unknown
- Creator: Unknown
Joseph Henry Seeks Support for Kane's Arctic Expedition
- Date: December 1, 1852
Tyrone Solar Station, Burro Mountain, NM
- Date: c. 1940
- Creator: Unknown
- Creator: Unknown
Laboratory of Division of Radiation and Organisms, SIB
- Date: c. 1930
- Creator: Unknown
- Creator: Unknown
David Pawson
- Date: 1980
- Creator: Clark, Chip
- Creator: Clark, Chip
Dr. Earl S. Johnston
- Date: 1936
- Creator: Unknown
- Creator: Unknown
Edward Oscar Ulrich
- Date: 1937
- Creator: Unknown
- Creator: Unknown
