An official website of the United States government.
John W. Mitchell Papers
Content Description
The John W. Mitchell Papers relate to Mitchell's research on ferns of the Mid-Atlantic United States. The collection includes slide transparencies, photographs, maps and guides, publications, and research notes compiled by Mitchell for a planned field guide.
Dates
- Creation: 1980-1991
Conditions Governing Access
Contact Special Collections for access.
Biographical Sketch
John W. Mitchell (1905-1992) studied botany at the University of Chicago under Ezra Jacob Kraus. He became a senior plant physiologist at the United States Department of Agriculture (USDA) Bureau of Plant Industry (BPI) in 1938. In the 1940s, Mitchell conducted research with Kraus and colleagues at the USDA on the agricultural use of the synthetic plant growth regulator 2,4-dichlorophenoxyacetic acid (2,4-D) as a selective herbicide. After retirement, Mitchell devoted his time to the study and photography of ferns in the Mid-Atlantic United States.
Total Size of Collection
3 records_box
3.75 Linear Feet (3 boxes)
Language of Materials
English
Genres
photographs
- Description rules
- Describing Archives: A Content Standard
- Language of description
- Undetermined
- Script of description
- Code for undetermined script
Repository Details
Part of the National Agricultural Library Special Collections Repository
National Agricultural Library
10301 Baltimore Avenue
Room 309
Beltsville Maryland 20705 USA
301-504-5876