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Subject Terms
- American Nature Study Society.
- Cady, Bertha Chapman.
- Caldwell, Otis W.
- Davidson, C. Girard.
- Finley, William L.
- Free, George.
- Gillmore, Ruth Miriam.
- Green, George R.
- Matlock, Nellie F.
- Ordway, Samuel H.,
- Palmer, Ephraim Laurence, 1888-1970.
- Patch, Edith.
- Sharp, L. B.
- Shaw, Ellen Eddy.
- Sollberger, Dwight E.
- Teale, Edwin Way, 1899-
- Vinal, William Gould.
- Weaver, Richard L.
- Westwood, Richard W.
- Wiley, Farida A. (Farida Anna)
- American Association for the Advancement of Science.
- American Nature Study Society.
- American Nature Study Society.Conservation Committee.
- Ecologists Union (U.S.)
- Izaak Walton League of America.
- National Council of State Garden Clubs.
- National Parks Association (U.S.)
- Natural Resources Council of America.
- United States.Department of the Interior.
- Conservation of natural resources.
- Forest conservation.
- Land use--Law and legislation.
- Nature study.
- Science--Study and teaching.
- Soil conservation.
- Wildlife conservation.
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