THE 5-SECOND TRICK FOR SOIL SURVEY METHODS

Subseries VIII.A. Slide transparencies, by place. 1942-1968. This subseries is predominantly composed of Kodachrome and Ektachrome slide transparencies from Kellogg's travels in The usa and overseas. Also bundled are shade prints constructed from a few of the slides. Topics depicted include: soils; landscape attributes; agriculture; individuals and