LIST OF ILLUSTRATIONS 
FIG. PAGE 
1. Map of North America (reproduced from Meiklejohn’s oro- 
scopic maps by permission of Messrs. Meiklejohn & Son) . 1 
2. Map of the North Atlantic, showing the supposed conditions 
of land and water during later Pliocene times (reproduced by 
permission of the Council of the Royal Irish Academy) . 16 
3. Map of North America, showing the distribution of the Moose 
Deer (reproduced by permission of Mr. Thompson Seton) . 32 
4. Map showing the outlines of the White Mountain Plateau and 
Mount Washington, with an inset Map of North America 
indicating the geographical position of the White Mountains 36 
5. Map of North America showing the original distribution of the 
Bison, the range of the same species after the completion of 
the Union Pacific Railroad and its present range (reproduced 
by permission of Dr. Hornaday).65 
6. Map of North America, showing the original distribution of the 
Wapiti deer, and its range in 1900 (reproduced by permission 
of Mr. Thompson Seton). 67 
7. Map of the northern parts of the northern hemisphere, 
showing the supposed land connections and the extent of the 
sea in the early part of the Glacial Epoch .... 98 
8. Map of the World, indicating the distribution of the newt 
Spelerpes.138 
9. Map of North America, showing the distribution of the Star¬ 
nosed Mole (reproduced by permission of Dr. True) . .142 
10. Map of North America, showing the distribution of the Rein¬ 
deer (reproduced with some modifications by permission of 
Mr. Thompson Seton).155 
11. Map of North and South America, showing the distribution of 
the snail Helicina.158 
12. Map of the World, showing the distribution of the family of 
fishes Cichlidae (reproduced by permission of Mr. Tate Regan) 234 
