Helping The others Realize The Advantages Of soil survey types
Subseries VIII.A. Slide transparencies, by country. 1942-1968. This subseries is predominantly made up of Kodachrome and Ektachrome slide transparencies from Kellogg's travels in The us and overseas. Also bundled are shade prints comprised of a lot of the slides. Subjects depicted contain: soils; landscape characteristics; agriculture; people and s