This groundbreaking geological study investigates the distribution and properties of clays in Kentucky, including the kaolins and plastic clays found in the western coalfield and the clays and sands of the Jac district. The author provides detailed analysis and classification of the different types of clay, as well as notes on associated minerals and economic uses. Essential reading for geologists, mineralogists, and clay industry professionals.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.