VI THE TRANSFORMATIONS OF THE ANIMAL WORLD 

 BOOK II 



THE TRANSFORMIST HYPOTHESIS 



CHAPTER IV 



PAGE 



THE FORERUNNERS AND FOUNDERS OF TRANSFORMISM 23-26 

 i. The Forerunners : Buff on, Goethe, and Oken. 

 2. The Founders of Transformism : Lamarck, 

 Etienne Geoffroy-St.-Hilaire, and Charles Darwin. 



CHAPTER V 



LAMARCK AND LAMARCKISM 27-32 



Zoological philosophy Spontaneous generation of 

 germs Plan of pre-existing progression Influence 

 of wants and habits First attempt at a genealogy 

 of beings. 



CHAPTER VI 



ETIENNE GEOFFROY-SAINT-HILAIRE . . . . 33-34 

 Direct action of the environment Hypothesis of 

 sudden variations Phenomena of arrested develop- 

 ment. 



CHAPTER VII 



CHARLES DARWIN AND DARWINISM .... 35-42 

 The Origin of Species Darwinian Selection The gaps 

 in Palaeontology The Descent of Man. 



CHAPTER VIII 



ERNST ', HEINRICH HAECKEL : THE EMBRYOGENIC 



METHOD ......... 43-60 



The History of Creation Parallelism of Ontogeny and 

 Phylogeny Stages of the embryonic development 

 Study and criticism of the phylogenical essays of 

 Haeckel Human genealogy The crisis of trans- 

 formism. 



