DEPARTMENT OF THE INTERIOR 
UNITED STATES ‘GEOLOGICAL SURVEY 
GEORGE OTIS SMITH, DirEcToR 
BULLETIN 419 
ANALYSES OF ROCKS AND MINERALS 
FROM THE 
LABORATORY OF THE UNITED STATES 
GEOLOGICAL SURVEY 
1880 TO 1908 
TABULATED BY 
F. W. CLARKE, Cuter CHEmMist 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1910 
