Three oversized albums of prints of photos taken by Ralph Dawson primarily during vacation trips throughout the U.S. between 1914-1950.

Book collection named after U of I Regent Jerome J. Day, whose donated collection of western Americana was the basis for creating this collection.

Correspondence, reports, and publications related to the control of forest insects collected and generated by Evenden as Director of the Forest Insect Laboratory, Coeur d'Alene, Idaho, 1919-1954.

Files from the office of Ladd Livingston, Forest Insect and Disease Supervisor in Coeur d'Alene, related to the Idaho State Forester Insect Work and the Douglas Fir Tussock Moth project.

Contains records, annual reports, surveys, and correspondence between Ladd Livingston, the Idaho Department of Lands, and the United States Forest Service. The collection centers around entomological correspondence concerning forest insects, diseases, and preventative measures to support and preserve forests across Idaho.

Files from the office of William E. Waters, Dean of the College of Natural Resources, University of California, Berkeley, related to the US International Biological Program (IBP) and the International Spruce Budworms Program (CANUSA).