Division of Radiation and Organisms Laboratory, Smithsonian Institution Building, or Castle - Earl Steinford Johnston

ID: 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

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Summary

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.

Subject

  • Johnston, Earl S (Earl Steinford) 1889-1947
  • Smithsonian Institution Building (Washington, D.C.)
  • Smithsonian Institution Division of Radiation and Organisms

Notes

  • USNM No. 11036F
  • Shown here is an apparatus for studying phototropism (bending toward light) of seedlings, in connection with experiments to determine effects of wave lengths of light on growth.

Cite as

Smithsonian Institution Archives, Record Unit 95, Box 31A, Folder 36, Image No. SIA_000095_B31A_F36_002

Repository Loc.

Smithsonian Institution Archives Capital Gallery, Suite 3000, MRC 507; 600 Maryland Avenue, SW; Washington, DC 20024-2520

Date

  • 1929
  • Between 1929 and 1934

Restrictions & Rights

  • No access restrictions. Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu
  • No Copyright - United States

Topic

  • Science
  • Experiments
  • Science--Experiments

Form/Genre

Black-and-white photographs

Local number

SIA RU000095 [SIA_000095_B31A_F36_002]

Physical description

Gelatin silver prints; 8 x 10;

Full Record

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