Hall, James,  1811-1898. <br/><br/>
Descriptions of new species of fossils.  From the Devonian rocks of Iowa; with a preliminary note on the formations. 
By James Hall and R.P. Whitfield. 
 - Albany,  Weed, Parsons & Company, printers,  1872. 
 - 21 p.  4 pl.  24 cm. 
<br/><br/> Published July, 1872, in advance of the 23rd report on the state cabinet. 
<br/><br/><label>LCCN: </label>gs 07000437  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Paleontology--Devonian.<br/>Paleontology--Iowa.
<br/><br/><label>LC Class. No.: </label>QE728  / .H17