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Creator
- Oregon Journal (Firm) 4
- Averill, Edgar F., 1881-1955 1
- Oregonian (Firm) 1
- The Press Democrat 1
- University of California, Berkeley 1
Topic
- Conservation of natural resources 4
- Lectures and lecturing 2
- Oregon Wildlife Federation 2
- Birds--Conservation 1
- Dams 1
- Fisheries 1
- Rivers--Oregon 1
- Wildlife refuges 1
Decade
- 1930-1939 4
