n? 
DEPARTMENT OE THE LNTEIMOU 
Clemson Universit 
3 1604 019 891 466 
B U L L E T I N 
UNITED STATES 
GEOLOGICAL SURVEY 
No. 17 8 
TF1E EL PASO TIN DEPOSITS.— Weed 
WASHINGTON 
GOVERNMENT PRINTING OEFK'K 
1 901 
