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Harry Alfred Borthwick Papers
Content Description
The Harry Alfred Borthwick Papers contain reprints, experiment results, correspondence, abstracts, manuscripts, photographs, negatives, positives, maps, graphs, tables, charts, slides, and notebooks. There are indexes to the reprints, abstracts, photographs, and negatives.
Dates
- Creation: 1901-1967
Conditions Governing Access
Contact Special Collections for access.
Biographical Sketch
H. A. (Harry Alfred) Borthwick (1898-1974), plant physiologist for the U.S. Department of Agriculture (USDA), is notable for heading investigations on photoperiodism, which culminated in the discovery of phytochrome in plants. In 1995, he was named to the Agricultural Research Service (ARS) Science Hall of Fame, in recognition for his contributions in elucidating the importance of photoperiodic mechanisms controlling flowering in plants.
Total Size of Collection
44 records_box
58 boxes (20 boxes, 10.5 x 6 x 8; 14 boxes, 12.5 x 5 x 6.5; 24 boxes, 12 x 4 x 5.5)
112 Linear Feet
Language of Materials
English
Alternate Call Number
QK714.4 B67 1901
Genres
maps, photographs, reprints
- Status
- Unprocessed
- 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