02 EVOLUTION, SOCIAL AND ORGANIC 



agree only as to whether Darwin's theory is 

 alone sufficient to account for the origin of new 

 species. 



Professor Packard, Lamarck's biographer, 

 and one of his warmest admirers, at the close 

 of his chapter devoted to the denial of "pure" 

 Darwinism says: "We must never forget or 

 under-estimate, however, the inestimable value 

 of the services rendered by Darwin, who by 

 his patience, industry, and rare genius for ob- 

 servation and experiment, and his powers of 

 lucid exposition, convinced the world of the 

 truth of evolution, with the result that it has 

 transformed the philosophy of our day. We 

 are all evolutionists, though we may differ as 

 to the nature of the efficient causes." 



There are now three possible positions, (i.) 

 That of the Lamarckians, pure and simple, 

 who maintain that Lamarck's theory in itself 

 explains all the phenomena, and that Darwin's 

 principle of selection is not only invalid but 

 superfluous. This school is practically extinct, 

 though Packard often sails to its very edge in 

 his efforts to defend his subject, as is the man- 

 ner of biographers. (2.) The Neo- (New)- 

 Lamarckians who develop Lamarck's theory 

 and add to it Darwin's selective principle as of 

 greater, equal, or secondary importance, ac- 

 cording as they lean the more strongly to Dar- 



