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DEPARTMENT OF THE INTEKIOJi 
BULLETIN 
OF THE 
UNITED ST 
GEOLOGICAL SURVEY 
No. 162 
BIBLIOGRAPHY AND INDEX OF NORTH AMERICAN 
GEOLOGY, PALEONTOLOGY, PETROLOGY, AND 
MINERALOGY FOR 1898.— Weeks 
WASHl^HiTO^ 
GOVERNMENT MINTING OFFICE 
1899 
