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Digital Collections

Photographs

Drillability machine and hopper at the Agricultural Engineering Laboratory

  • 1955-Jan-25

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No Known Copyright

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General view of the drillability machine at the U.S. Department of Agriculture's Agricultural Engineering Laboratory showing the distribution of wet granular fertilizer as deposited by the Grether hopper.

Property Value
Format
Genre
Extent
  • 4 in. H x 5 in. W
Inscription
  • (On verso) "F-2848 By CWG"
Subject
Rights No Known Copyright
Credit line
  • Courtesy of Science History Institute

Institutional location

Department
Collection
Physical container
  • Box 4

View in library catalog

Related Items

Cite as

“Drillability Machine and Hopper at the Agricultural Engineering Laboratory,” January 25, 1955. Travis P. Hignett Collection of Fixed Nitrogen Research Laboratory Photographs, Box 4. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/jq085k00g.

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The Science History Institute recognizes there are materials in our collections that may be offensive or harmful, containing racist, sexist, Eurocentric, ableist, or homophobic language or depictions. The history of science is not exempt from beliefs or practices harmful to traditionally marginalized groups. The Institute is engaged in ongoing efforts to responsibly present and address the evidence of oppression and injustice inextricable from the history of science. If you would like to learn more about our ongoing efforts or if you encounter harmful, inaccurate, or insufficient descriptions, please contact us at digital@sciencehistory.org.