T OF THE INTERIOR, 



U. S. GEOlflpICAL AND GEOGRAPHICAL SURVEY OF THE TERRITORIES. 

 F. V. HAYDEN, U. S. GEOLOGIST-IN-CHARGE. 



MISCELLANEOUS PUBLICATIONS No. 4. 



SYNOPSIS 



OF THE 



FLOEA OF COLOEADO, 



BY 



TEEO1MA.S C. PORTER 



AND 



Mi. COULTER. 



WASHINGTON: 



GOVERNMENT FEINTING OFFICE. 



March 20, 1874. 



