FIG. 
. Tundra in Northern Russia 
. Ptarmigan . 
. Wapiti 
NSO orwhnd 
© 
34, 
LIST OF ILLUSTRATIONS 
Elk 
. Virginian Deer ; 
. Three-toed Woodpecker 
Camels 
. American Bison . 
. Prairie Marmot . 
. Sage-cock . 
. Swiss Alp . 
. Snow Leopard 
ake: 
Alaskan Wild Sheep 
. Takin 
. Kiang 
. Bharal 
. Serow 
. Musk-deer . 
. Hyrax ; 2 : : 
. Rain-forest in North Borneo 
. Congo Tropical Forest 
. Red Howling Monkey 
. American Monkey 
. Black Lemur 
. Puma and Cubs 
. African Elephant 
. Indian Elephant 
. African Flying Squirrel 
. Brazilian Tree Porcupine 
- Quica Opossum . 
. Sloth 
. Phalanger . 
Savana 
facing 
29 
facing 
99 
facing 
100 
101 
102 
108 
109 
109 
110 
111 
111 
112 
113 
122 
