INDICATORS ON SOIL SURVEY MANUAL YOU SHOULD KNOW

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 the United States and overseas. Also included are coloration prints made from several of the slides. Subjects depicted involve: soils; landscape attributes; agriculture; ind