00940cam a22002531 4500 gs 20000004 DLC 20260227111324.0 770423s1919 paubf b s000 0 eng c gs 20000004 (OCoLC)2910680 U.S. Geol. survey. Library NAlfC DLC premarc GA61.P4 A5 no. 12 Fettke, Charles R. (Charles Reinhard), 1888-1959. Glass manufacture and the glass sand industry of Pennsylvania, by Charles Reinhard Fettke, Ph.D. Harrisburg, Penna., J. L. L. Kuhn, printer, 1918 [i.e.1919] 278 p. CVII pl. (part fold., incl. maps, diagrs.) 23 cm. Pennsylvania. Topographic and geologic survey. Report no. XII Cover dated 1919. Many plates printed on both sides. Bibliography: p. 264-270. Glass manufacture Pennsylvania 25975 25975