THE 5-SECOND TRICK FOR SOIL SURVEY METHODS

Subseries VIII.A. Slide transparencies, by region. 1942-1968. This subseries is predominantly composed of Kodachrome and Ektachrome slide transparencies from Kellogg's travels in the United States and abroad. Also integrated are color prints comprised of a lot of the slides. Topics depicted incorporate: soils; landscape attributes; agriculture; peo