SUMMAR Y. 243 



Natural selection, or Darwinism, is therefore al- 

 most everywhere acknowledged as insufficient to 

 meet the facts of nature, since many features of life 

 cannot be explained by it. Even Darwin did not 

 consider it as a final explanation, placing less cre- 

 dence upon it than did some of his followers. In 

 his later works, he did not hesitate to acknowledge 

 that he had at first overrated its influence. This 

 admission, and the conclusion we have now reached, 

 does not detract from the importance of the prin- 

 ciple, which still remains as one of the important 

 laws regulating organic life. The question now 

 remains, since natural selection is not entirely suffi- 

 cient, can any other explanation be offered as to 

 the laws regulating the production of species which 

 will supplement Darwinism, and thus bring us 

 nearer the true solution of the organic world ? To 

 this question we now proceed. 



