UNITED STATES GEOLOGICAL SURVEY 
CHARLES D. WALCOTT, DIRECTOR 
BIBLIOGRAPHY AND INDEX 
OP 
NORTH AMERICAN GEOLOGY, PALEONTOLOGY, 
PETROLOGY, AND MINERALOGY 
FOR 
Tl^ 
THE YEAR 1898 
BY 
FRED BOUG-HTON WEEKS 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1899 
