268 



ORES. 



CHICAGO : 

 A. W. MUMFOHD, PUBLISHER. 



SPECIMENS AT TOP OF PAGE ARE GOLD BEARING ROCK. 

 SILVER QUARTZ. N.\TIVE COPPER. TIN ORE. 13. II. 



NICKEL PYRITES. LEAD CRY.STALS. BLUE CARBONATE COPPER. 



SPATHIC IRON ORE. KIDNEY IRON ORE. ZINC ORE. NEEDLE IRON ORE. 



