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- Soils 43
- Universities and colleges--Faculty 35
- Cheney, Horace B. 17
- Soil Science 13
- Powers, W. L. (Wilbur Louis), 1887- 6
- Graduate students 5
- Harward, M. E. 5
- Portraits 5
- Oregon State University. Extension Service 4
- Laboratories 3
- School of Forestry 3
- Starker, T. J. (Thurman James), 1890-1983 3
- Universities and colleges--Employees 3
- Architecture 2
- Dawson, M. D. 2
- Jackson, T. L. (Thomas Lloyd), 1922- 2
- Murarka, Ishwar P. 2
- Schoth, H. A. (Harry August), 1891- 2
- Sesbania 2
- College students 1
