Liet of Illustrations 
DACING FAGE 
Young Woodland Caribou (Rangifer caribou) . : 54 
Typical Heads and Antlers of Cervide ere : e 56 
Pronghorn (Antilocapra americana) . 5 : 4 A 58 
Young Pronghorns (Antilocapra americana) “ . 60 
Pronghorns (Antilocapra americana) : : ° . 62 
Male Pronghorns (Antilocapra americana) 64 
Mountain Goat (Oreamnos montanus ) ; 66 
Young Cow Musk Ox, about 16 months old ss outs mos- 
chatus) : ; : 68 
Bull Bison (Bison bison ) ; : 70 
A Herd of American Bison (Bison bison) . : : ° 72 
Nest of Young Cottontails 76 
Young Cottontail Among the Cabbage ( Lap oridanus 
mallurus ) : , 76 
Varying Hare (Lepus americanus pen) 86 
Little Chief Hare, or Pika (Ochotona princeps) 92 
Canada Porcupine (Erethizon sel with a thrown 
forward. In wild state : ; 94 
American Porcupine Swimming, with ils arise ( Ere- 
thizon dorsatus) 96 
Western Pocket Gopher ( TAS A 98 
Western Long-tail Mouse, caught in the Bitter Root 
Mountains ; 102 
Long-tailed Jumping eae ( Zaps sidconteon ; : 102 
Mice and Shrews of the Eastern States : . : 110 
Western and Southern Mice and Rats : : A : 114 
Muskrat (Fiber zibethicus ) ; ° . ° ° ° 122 
Western Wood Rat, female (Neotoma) . . ° ° 128 
Cotton Rat (Sigmodon hispidus littoralis) S : 4 130 
Western Bushy-tailed Wood Rat (Neotoma) . . . 130 
White-footed Mouse (Peromyscus), enlarged . = P 132 
White-footed Mouse and Young (Peromyscus leucopus) 134 
House Mouse on Trap (Mus musculus) . A é A 142 
Common,or Norway Rat (Mus norvegicus ) : : 3 142 
Canadian Beaver (Castor canadensis) : te ie : 146 
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