Bayley, William Shirley,  1861-1943. <br/><br/>
Pre-Cambrian geology and mineral resources of the Delaware Water Gap and Easton quadrangles, New Jersey and Pennsylvania, 
by W. S. Bayley. 
 - Washington,  U.S. Gov't. Print. Off.,  1941. 
 - v, 98 p.  illus. (incl. maps) 5 pl. (incl. fold. map, fold. diagr.)  23 cm. 
 - U. S. Geological Survey.  Bulletin 920 .
<br/><br/> At head of title: United States Department of the Interior ... Geological Survey ...  Folded map in pocket. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 41000035  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--New Jersey.<br/>Geology--Pennsylvania.<br/>Mines and mineral resources--New Jersey.<br/>Mines and mineral resources--Pennsylvania.<br/>Geology, Stratigraphic--Precambrian.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Delaware Water Gap (N.J. and Pa.)
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 920 
<br/><br/><label>Dewey Class. No.: </label>553.09748  557.3