/?. 3 ■■Joo 
DEPARTMENT OF THE INTERIOR 
BULLETIN 
UNITED STATES 
GEOLOGICAL SURVEY 
:n"o. 200 
SERIES A, ECONOMIC <»EOL.O<«Y, 17 
RECONNAISSANCE OF TH E B( )K A X I ) EP( >S I TS OF DEATH 
VALLEY AND MOHAVE DESERT.— Campbell 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1 90 13 
