viii CONTENTS. 



VII. 



PAGE 



LYELL AND MODERN GEOLOGY DARWIN'S THEORY OF SELECTION 

 BEGINNING OF LIFE 127 



VIII. 



HEREDITY REVERSION VARIABILITY ADAPTATION RESULTS OF 

 USE AND DISUSE OF ORGANS DIFFERENTIATION LEADING TO 

 PERFECTION 165 



IX. 



THE DEVELOPMENT OF THE INDIVIDUAL (ONTOGENESIS) is A RE- 

 PETITION OF THE HISTORICAL DEVELOPMENT OF THE FAMILY 

 (PHYLOGENESIS) 195 



X. 



THE GEOGRAPHICAL DISTRIBUTION OF ANIMALS IN THE LIGHT OF 



THE DOCTRINE OF DERIVATION 222 



XL 



THE PEDIGREE OF VERTEBRATE ANIMALS 248 



XII. 

 MAN 282 



REFERENCES AND QUOTATIONS 311 



