Clays in Several Parts of Kentucky, With Some Account of Sands, Marls and Limestones. 1. Kaolins and Plastic Clays on the Eastern Rim of the Western Coalfield; Notes on Clays in the Western, Lead, Zinc and Spar District (F.J. Fohs)

Clays in Several Parts of Kentucky, With Some Account of Sands, Marls and Limestones. 1. Kaolins and Plastic Clays on the Eastern Rim of the Western Coalfield; Notes on Clays in the Western, Lead, Zinc and Spar District (F.J. Fohs)