Hunt, Thomas Sterry,  1826-1892. <br/><br/>
Special report on the trap dykes and Azoic rocks of southeastern Pennsylvania. 
By T. Sterry Hunt. Part I. Historical introduction. 
 - Harrisburg,  Pub. by the Board of commissioners for the Second geological survey,  1878. 
 - Exxi, E253, 2, [1] p.  front. (map)  23 cm. 
 - Pennsylvania. Geological survey, 2d. [Report of progress  E] .
 - Report of progress (Geological Survey of Pennsylvania),  E. .
<br/><br/> At head of title: Second geological survey of Pennsylvania: 1875.  No more published. 
<br/><br/><label>LCCN: </label>gs 07000713  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Pennsylvania.<br/>Geology, Stratigraphic--Archaean.
<br/><br/><label>LC Class. No.: </label>QE653  / .H94