XXVI 



ILLUSTRATIONS 



FIG. 



PAGE 



• 357 



359 

 360 



361 



106. Bones of Fossil Anxestors of the Horse, .... 



107. Representation of the Ancestor of the Horse Drawn by 



Charles R. Knight under the Direction of Professor 

 OsBORN. Permission of the American Museum of Natural 

 History, 



loS. Fossil Remains of a Primitive Bird (.A.rch^opteryx), . 



loq. Gill-clefts of a Shark Compared with those of the Em- 

 bryonic Chick and Rabbit, 



1 10. Jaws of an Embryonic Whale, showing Rudimentary Teeth, 362 



111. Profile Reconstructions of the Skulls of Living and of 



Fossil Men, .... 



112. Lamarck, 1744-1829, . 



113. Charles Darwin, 1809-1882, 



114. August Weismann, born 1834, 



115. Hugo de Vries, 



116. Buffon, 1 707-1 788, 



117. Erasmus Darwin, 1731-1802, 



118. Geoffroy Saint Hilaire, 1772-1844, 



119. Charles Darwin, 1809-1882, 



120. Alfred Russel Wallace, born 1823, 



121. Thomas Henry Huxley', 1825-1895, 



122. Ernst Haeckel, born 1834, 



123. The Biological Station at Naples, 



