DEPARTMENT OF THE INTERIOR. 'S 



UNITED STATES GEOLOGICAL AND GEOGRAPHICAL SURVEY. 

 F. V. HAYDEN, U. S. Geologist. 



MATERIAL 



BIBLIOGRAPHY 



OK 



NORTH AMERICAN MAMMALS, 



PREPARED BY THEODORE GILL AND ELLIOTT COUES. 



EXTRACTED FROM THE ELEVENTH VOLUME OF THE FINAL REPORTS OF 

 THE SURVEY, HEING 



MONOGRAPHS OF NORTH AMERICAN RODENTIA. 



ELLIOTT COUES AND JOEL ASAPH ALLEN. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1877. 



is 



