LIST OF FULL-PAGE ILLUSTEATIOISTS 



FACING 

 PAGE 



Triceratops Frontispiece 



From a painting by C. R. Knight 



Eurypterids, or Sea-Scorpions 76 



From Creatures of Other Days 



Early Fishes 90 



From Creatures of Other Days 



Labyrinthodont and Anomodont 120 



From Creatures of Other Days 



Skull of Triceratops 208 



From a specimen in the United States National Museum 



The Mastodon 264 



From a painting by J. M. Gleeson 



Vll 



