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- Oregon State College. Agricultural Experiment Station319
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- Forest Products Laboratory (U.S.)34
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- Jackman, E. R. (Edwin Russell), 1894 32
- Jenkins, Lawrence31
- Oregon State College. Extension Service31
- Mote, Don C. (Don Carlos), 1887 30
- Oregon State College. Federal Cooperative Extension Service28
- Oregon State College. Engineering Experiment Station25
- Breithaupt, L. R. (Le Roy), 1886 24
- Oregon Agricultural College. Experiment Station23
- Cowgill, Helen Julia20
- Price, F. E. (Frederick Earl), 1898 18
- Wilster, G. H. (Gustav Hans), 189316
- Jones, I. R. (Idwal Ralph), 1898 15
- Wiegand, Ernest Herman, 1886 15
- Mcwhorter, Frank, 1896 198514
- Owens, Charles Elmer, 1877 13