THE SINGLE BEST STRATEGY TO USE FOR SOIL SURVEY TYPES

Subseries VIII.A. Slide transparencies, by region. 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 bundled are colour prints constructed from many of the slides. Subjects depicted incorporate: soils; landscape capabilities; agricultur