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Topic
- Oregon Agricultural College. Experiment Station 31
- Plants, Cultivated--Field experiments 27
- Sulfur fertilizers 27
- Potassium fertilizers 6
- Nitrogen fertilizers 5
- Oregon State Agricultural College. Agricultural Experiment Station 5
- Hens 3
- Knowlton, Frank L. (Frank Lester), 1894-1940 3
- Poultry 3
- Universities and colleges--Faculty 3
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Work Type
- photographic prints 44
- photographs 41
- black-and-white photographs 40
Region
- Oregon >> United States 44
Local Collection Name
- Agricultural Experiment Station Photographic Collection, ca. 1900-1988 (P 029) 40
- Benjamin A. Gifford Photographs, circa 1885 - circa 1920 (P 218-SG 1) 1
- Food Science and Technology Department Photographs, 1900-1963 (P 142) 1
- Gifford Collection Photographs by Unknown or Other Photographers, circa 1915-1955 (P 218-SG 6) 1
Format
- image/tiff 43
- image/jpeg 1
Decade
- 1920-1929 44