Beyschlag, Franz Heinrich August,    1856-1935 <br/><br/>
The deposits of the useful minerals & rocks :   their origin, form, and content  /  
F. Beyschlag 
 - London :   Macmillan ,   1916 
 - 2 v. ;    23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--deposits------<br/>Ore --deposits------
<br/><br/><label>Dewey Class. No.: </label>553.1