ite Library of 

 Raymoiiti 



Professional Paper No. 16 



Series 0, Systematic Qeology and Paleontology, 63 



DEPARTMENT OF THI<; IiNTEKlOR 

 UNITED STATES GEOLOGICAL SURVEY 



(■HAi:i,KS II. WALCOTT, DiRiirroK 



T li E 



OARBONIFEROUS FORMATIONS AND FAUNAS 



X 



COLORADO 



GJJORaE H. aiRTY 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 



1903 



