242 



EVOLUTION IN THE PAST 



Whales (cont) — 



Sperm, 165 



Whalebone, 165 



White, 165 



Zeuglodont, 131, 149, 165 

 Whelks, 85, 137 

 Wild boar, 183 

 Willows, 113 

 Wingshells, 24, 32, 55 

 Wolverines, 189, 194 

 Wolves, 127, 146, 156, 173, 183, 189 

 — pouched, 207 

 Wombats, 186, 206 

 Woodpeckers, 132, 151 

 Worms, 13, i8, 23, 31 



Xiphodonts, 129, 144 



Yellow races. See^Mongolian 

 Yews, 68, 70 



Zafrentis, 28 



Zamia, 71 



Zebra, 182, 189, 193, 215 



Zeuglodonts, 131, 149, 165 



WILLIAM BRENDON AND SON, LTD. 

 PRINTERS, PLYMOUTH 



