45 Keen, F.P. 1933. Letter dated Aug. 9 to Solinsky. On file with: Pacific Northwest Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
46 Buckhorn, W.J. Jan. 15, 1935. Report of forest insect conditions in Crater Lake National Park and adjacent areas of Rogue River National Forest, season 1934. Portland, OR: Forest Insect Laboratory. 7 p. On file with: Pacific Northwest Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
47 The use of trade, firm, or corporation names in this publication is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the U.S. Department of Agriculture of any product or service to the exclusion of others that may be suitable.
48 Furniss, R.L. Aug. 28, 1946. Forest insect situation in Crater Lake National Park, August 1946. Portland, OR: Forest Insect Laboratory. 5 p. On file with: Pacific Northwest Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
49 Patterson, John E. Jan. 31, 1948. Mountain pine beetle control project Crater Lake National Park, Oregon, season of 1947. Berkeley, CA: U.S. Department of Agriculture, Bureau of Entomology and Plant Quarantine, Forest Insect Investigations, Forest Insect Laboratory. 14 p. On file with: Pacific North west Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
50 Stevens, Robert E. July 30, 1948. Report of an insect control project in Crater Lake National Park carried on from June 2, 1948, through June 30, 1948. U.S. Department of the Interior, National Park Service, Crater Lake National Park, Oregon. 2 p. Patterson, J.E. 1948. Memorandum dated Aug. 20 to F.P. Keen. Both on file with: Pacific Northwest Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
51 Buckhorn, W.J. Mar. 1961. Forest insect conditions—Crater Lake National Park, 1960. Portland, OR: Pacific Northwest Forest and Range Experiment Station, Division of Forest Insect Research. On file with: Pacific Northwest Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
52 Anonymous. Western Division newsletter. Forest Insect Investigations, Bureau of Entomology. Stanford University, CA: Jan. 1, 1925. 10 p. On file with: Pacific Northwest Research Station, Forestry and Range Sciences Laboratory, 1401 Gekeler Lane, La Grande, Oregon 97850.
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