NOT KNOWN FACTS ABOUT SOIL SURVEY METHODS

Subseries VIII.A. Slide transparencies, by place. 1942-1968. This subseries is predominantly made up of Kodachrome and Ektachrome slide transparencies from Kellogg's travels in America and abroad. Also included are colour prints made out of a lot of the slides. Subjects depicted include: soils; landscape characteristics; agriculture; people today a