Claypole, E. W.  1835-1901. <br/><br/>
A preliminary report on the palaeontology of Perry county,  describing the order and thickness of its formations and its folded and faulted structure. 
By E.W. Claypole ... 
 - Harrisburg,  Pub. by the Board of commissioners for the Second geological survey,  1885. 
 - xxii F2, F2 437, 13 p.  front (chart) illus., 2 fold. charts (in pocket)  23 cm. 
 - Pennsylvania. Geological survey, 2d. Report of progress  F2 .
 - Report of progress (Geological Survey of Pennsylvania),  F2. .
<br/><br/> On cover: Pennsylvania. Second geological survey, Perry county. Part I. Geology. 
<br/><br/><label>LCCN: </label>gs 07000715  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology--Pennsylvania--Perry County.<br/>Geology--Pennsylvania--Perry County.
<br/><br/><label>LC Class. No.: </label>QE157  / .A16 vol. F2