Edwards, Merwin Guy,  1889- [from old catalog] <br/><br/>
Introduction to optical mineralogy and petrography :  the practica l methods of identifying minerals in thin section with the microscope a nd the principles involved in the classification of rocks / 
Merwin G . Edwards. 
 - Cleveland, Ohio :  [The Gardner printing co.],  1916. 
 - 197 p. :  ill., diagrs. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy.<br/>Petrology.
<br/><br/><label>Dewey Class. No.: </label>552