xiv LIST OF ILLUSTRATIONS 



Fig. Page 



32. The Three Giants, rhororhacos, Moa, Os- 



trich 158 



33. Skeleton of the Modern Horse and of His 



Eocene Ancestor . . . . 161 



34. The Development of the Horse . .168 



35. The Mammoth 176 



From a drawing hy Charles R. Knight. 



36. Skeleton of the Mammoth in the Royal 



Museum of St. Petersburg . . .183 



37. The Mammoth 196 



As engraved hy a Primitive Artist on a Piece of Mam- 

 moth-Tusk. 



38. Tooth of Mastodon and of IMammoth . 199 



39. The Missourium of Koch . . . .207 

 From a Tracing of the Figure Illustrating Koch's De- 

 scription. 



40. The Mastodon 210 



From a drawing by J. M. Gleeson. 



41. The Lenape Stone, Reduced . . . 219 



