HELPING THE OTHERS REALIZE THE ADVANTAGES OF 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 the United States and abroad. Also included are coloration prints comprised of a number of the slides. Subjects depicted include: soils; landscape features; agriculture; fol