The purpose of the project in Jasper County was to locate and map deposits of bentonite and fuller's earth, clays used extensively in the refining of petroleum and for rotary drilling muds. Bentonitic clays are also used in the manufacture of soaps, insecticides, cosmetics, polishes, adhesives, ceramic glazes, absorbents, and in road, roofing, and floor materials.

Thanks are due to Mr. W. G. Hugly, geologist with the Southwestern Settlement and Development Company, for his assistance and cooperation in furnishing valuable information pertaining to bentonite deposits in Jasper County. Thanks are also extended to the Southwestern Settlement and Development Company and to other landowners for allowing the project to operate on their properties.