IMI I fKiil 





Jjuf 



CHICAGO: 

 A* W« MUMFORO PUBLISHER 



320 



Cholcopyiite 

 Cerussite coating Galen ite 

 Galeiiite 



ORES. 

 Full size. 



COPYRIGHT 1900, BV 

 NATURE STUDY PUB. CO. .CHICAGO. 



Clialcocitp 



Anglesite 

 Native Copper 



