120 WHAT EVOLUTION IS 



Opinions of this kind have been 

 frankly expressed by such eminent 

 authorities as Bateson in England 

 and Morgan in America, and they 

 reflect the view of the majority of 

 biologists the world over. 



Although the statements of these, 

 and other authorities on this subject, 

 have been made with perfect clear- 

 ness and in full knowledge of what 

 the words imply, they have been 

 seized upon by many thoughtless per- 

 sons as evidence that biologists are 

 abandoning the doctrine of evolution. 

 What is really meant by these decla- 

 rations, as must be evident to any- 

 one who has read thus far, is that 

 descent with modification, or evolu- 

 tion, is not questioned, but that the 

 particular explanation of it, known 

 as natural selection, or Darwinism, is 

 seriously doubted. One often sees in 

 current literature lists of noted biolo- 



