NO 



z. 



SMITHSONIAN INSTITUTION. 



UNITED STATES NATIONAL MUSEUM. 



V\[ . 11 02. 



[AN 



GUIDE TO THE STUDY OF THE COLLECTIONS 



IN THE SECTION OF APPLIED 



GEOLOGY. 



THE NONMETALLIC MINERALS. 



GEORGE P. MERRILL, 



Curator, Division of Physiwd and Chemical Geology, and Head Curator, 

 Department of Cfeology, U. S. Rational Museum. 



From the Report of the U. S. National Museum for 1H, pages '155-483, 

 with thirty plates. 



WASHINGTON: 



PRIM 

 1901. 



GOVERNMENT PRINTING OFFICE. 



,. 



