Darton, Nelson Horatio,  1865-1948. <br/><br/>
Economic geology of Richmond, Virginia, and vicinity,  

 - Washington,  Govt. print. off.,  1911. 
 - 48 p.  illus., x pl. (incl. fold. map)  24 cm. 
<br/><br/><label>LCCN: </label>gs 11000561  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Virginia.<br/>Geology, Economic--Virginia.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 483