Fettke, Charles R.  1888-1959. <br/><br/>
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 .
<br/><br/> Cover dated 1919.  Many plates printed on both sides. 
<br/><br/>Bibliography: p. 264-270. 
<br/><br/><label>LCCN: </label>gs 20000004  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Glass manufacture--Pennsylvania
<br/><br/><label>LC Class. No.: </label>GA61.P4  / A5 no. 12