Report on the Geological survey of the state of Iowa. 

 - Des Moines,  Printed by C. Van Benthuysen  1858. 
 - 2 v.  illus., 29 pl., fold. col. map, diagrs.  26 cm. 
<br/><br/> Vol. 2 never published. 
<br/><br/><label>LCCN: </label>gs 05001137  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Iowa.<br/>Geology, Economic.<br/>Paleontology--Iowa.
<br/><br/><label>LC Class. No.: </label>QE111  / .A12