﻿U. S. DEPARTMENT OE AGRICULTURE 

 DIVISION OF ORNITHOLOGY AND MAMMALOGY 



^sORTH AMERICA! FAUNA 



]S^o. 12 



[Actual date of publication, July 23, 1896.] 



GEXERA AND SIT.GEXERA OF VOLES AND LEMMINGS 



BY 



GERRIT S. MILLER, Jr. 

 Prepared under the direction of 



Dr. C. HART MERRIAM 

 ^HIEF OF DIYISIOX OF ORNITHOLOGY AXD MAMMALOGY 



GOYEKNMENT PRINTING 

 189G 



OFFICE 



