DARWIN, AND AFTER DARWIN. 



CHAPTER I. 



Introductory : The Darwinism of Darwin, 

 AND of the Post-Darwinian Schools. 



It is desirable to open this volume of the treatise 

 on Darwi7t and after Darwin by taking a brief 

 survey of the general theory of descent, first, as this 

 was held by Darwin himself, and next, as it is now 

 held by the several divergent schools of thought which 

 have arisen since Darwin's death. 



The most important of the questions in debate is 

 one which I have already had occasion to mention, 

 while dealing, in historical order, with the objections 

 that were brought against the theory of natural 

 selection during the life-time of Darwin ^. Here, how- 

 ever, we must consider it somewhat more in detail, 

 and justify by quotation what was previously said 

 regarding the very definite nature of his utterances 

 upon the matter. This question is whether natural 

 selection has been the sole, or but the main, cause 

 of organic evolution. 



* Part I, pp. 253-256. 

 II. B 



