Schoolcraft, Henry Rowe,  1793-1864. <br/><br/>
A memoir on the geological position of a fossil tree,  discovered in the secondary rocks of the river Des Plaines.  Read before the American geological society. 
By Henry R. Schoolcraft. 
 - Albany,  Printed by E. and E. Hosford,  1822. 
 - 18 p.  22 cm. 
<br/><br/><label>LCCN: </label>gs 06001215  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Illinois.<br/>Paleobotany--Illinois.<br/>Trees, Fossil.
<br/><br/><label>LC Class. No.: </label>QE991  / .S35