THE 5-SECOND TRICK FOR SOIL SURVEY TYPES

Subseries VIII.A. Slide transparencies, by country. 1942-1968. This subseries is predominantly composed of Kodachrome and Ektachrome slide transparencies from Kellogg's travels in The us and abroad. Also involved are coloration prints made out of many of the slides. Subjects depicted include things like: soils; landscape capabilities; agriculture;