UNIVERSITY OF CALIFORNIA 



[GRINNELL-STORERI PLATE 25 



^N --^ 



'm 



(I. r>()ylc \Vhit('-foot('(l Mouse. 



Ii. <'oiiiiiioii ((iaiiilol) White t'ootod Mouse. 



r. liouK- Mouse. All about i-f, uaturnl si/c; photographed from spci-iuieiis t'reshl.v 

 tiappcd 111 Yoseniite Valley, JJeceiuhcr lii', ISMl. For dis-eusMou of diayiiost u' diar 

 aeteis, see text, ji|i. 1('(!, 1(17. 



