Merrill, George P.  1854-1929 <br/><br/>
A treatise on rocks, rock-weathering and soils / 
by George P. Merrill 
 - [New ed.]. 
 - New York :  Macmillan,  1906 
 - xxi, 400 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology<br/>Soils