Minerals and mineral industries of Oregon; 
Oregon bureau of mines and geology. A list of the important minerals of Oregon and brief description of their occurrence and development. 
 - [Panama-Pacific ed.] 
 - [n.p.]  1915. 
 - 1 p. l., [5]-40 p.  illus., fold. map.  24 cm. 
<br/><br/> On cover: Panama-Pacific exposition, 1915. 
<br/><br/><label>LCCN: </label>gs 15000880  
<br/><br/><label>Subjects--Meeting Names: </label><br/>Panama-Pacific International Exposition San Francisco, Calif.)  (1915 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Oregon.
<br/><br/><label>LC Class. No.: </label>TN24.O7  / A45 
<br/><br/><label>Gov. Doc. Class. No.: </label>Y/M66.2M66/2