Spence, Hugh S.  1885- <br/><br/>
Mica,  its occurrence, exploitation, and uses; 
by Hugh S. de Schmid. 
 - 2d ed. 
 - Ottawa,  Government Printing Bureau,  1912. 
 - xiv, 411 p.  illus., XXXVIII pl.(part fold.) maps (part fold.) diagrs. (part fold.)  25 cm. 
<br/><br/> At head of title: Canada. Dept. of Mines. Mines Branch.  First edition, published 1905, was by Fritz Cirkel. 
<br/><br/>"Literature consulted": p. 391-398. 
<br/><br/><label>LCCN: </label>gs 12000600  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mica.
<br/><br/><label>LC Class. No.: </label>TN933  / .S7