Subseries VIII.A. Slide transparencies, by region. 1942-1968. This subseries is predominantly composed of Kodachrome and Ektachrome slide transparencies from Kellogg's travels in The usa and abroad. Also provided are shade prints made from a number of the slides. Topics depicted contain: soils; landscape attributes; agriculture; men and women and lifestyle, https://louis9i67r.blogacep.com/36983349/top-guidelines-of-soil-survey