00944cam a22002411 4500 gs 21000064 DLC 20260227111325.0 780330s1920 xx 000 0 eng c gs 21000064 (OCoLC)3764292 U.S. Geological Survey OT DLC premarc TN939 .R5 Richardson, Charles Henry, 1862-1935. The glass sands of Kentucky; a detailed report covering the examination, analysis and industrial evaluation of the principal glass sand deposits of the state, by Charles Henry Richardson. Ill. with twenty-three photographs, maps and designs. Frankfort, Ky., The Kentucky Geological survey, 1920. viii, 149 p. illus., maps, tables. 24 cm. Kentucky. Geological survey. Series 6. v. 1 Bibliography: p. 139-145. Sand. Glass manufacture. 26068 26068