Division of Radiation and Organisms Laboratory, Smithsonian Institution Building, or Castle - Earl Steinford Johnston
CC0
CloseID: SIA RU000095 [SIA_000095_B31A_F36_002]
Creator: United States National Museum Photographic Laboratory
Form/Genre: Black-and-white photographs
Date: 1929
Citation: Smithsonian Institution Archives, Record Unit 95, Box 31A, Folder 36, Image No. SIA_000095_B31A_F36_002
Dr. Earl S. Johnston, plant physiologist, determines the phototropic response of oat seedlings to different regions of the visible spectrum in the Division of Radiation and Organisms Laboratory in the basement of the Smithsonian Institution Building, or Castle.
Smithsonian Institution Archives, Record Unit 95, Box 31A, Folder 36, Image No. SIA_000095_B31A_F36_002
Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520
Black-and-white photographs
SIA RU000095 [SIA_000095_B31A_F36_002]
Gelatin silver prints; 8 x 10;