xii ILLUSTRATIONS 
The Manatee 
The Three-Banded Armadillo, and Six-Banded Armadillo 
The Great Ant-Eater and the Tamandua 
Murine Opossum and Young 
Why the White Mountain Sheep are Fast Disappearing! 
Landscape Chart of the Orders of North American Birds 
Cliff Swallow and Nests 
American Magpie 
TEXT ILLUSTRATIONS 
Skeleton of an Adult Male American Bison 
American Bison in the New York Zoological Park 
The Wichita National Bison Herd, Oklahoma 
Range of the Musk-Ox 
Distribution of Mountain Sheep in North America in 1914 . 
Head of White Mountain Sheep . 
Wide-Horned White Mountain Sheep 
Skeleton of an Adult Male Mountain Goat 
Distribution of the White Mountain Goat . 
Prong-Horned Antelope 
Isolated Herds of Prong-Horned Antelope . 
“Do Elk Shed Their Antlers?” 
“Do Elk Shed Their Antlers?” 
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