﻿CONTENTS 



CHAPTER I. 



PAGB 



Introductory: The Darwinism of Darwin and of the 



Post-Darwinian Schools i 



CHAPTER II. 

 Characters as Hereditary and Acquired {Preliminary) 39 



CHAPTER III. 



Characters as Hereditary and Acquired {Continued). 



A. Indirect evidence in favour of the Inheritance of Ac- 



quired Characters 60 



B. Inherited effects of Use and of Disuse . • . • 95 



CHAPTER IV. 



Characters as Hereditary and Acquired {Continued). 

 C Experimental evidence in favour of the Inheritance of 



Acquired Characters 103 



CHAPTER V. 



Characters as Hereditary and Acquired {Continued). 

 A. and B. Direct and Indirect Evidence in favour of the 



Non-inheritance of Acquired Characters . . . 133 

 C Experimental Evidence as to the Non-inheritance of 



Acquired Characters 142 



