i 4 THE SCIENTIFIC EVIDENCES OF 



of specific types. For the sake of simplicity, 

 however, I shall not go into this subject; but 

 shall always speak of natural selection as the 

 only cause of organic evolution. Let us, then, 

 weigh the evidence in favour of organic evolution. 

 If we find it wanting, we need have no complaints 

 to make of natural theologians of to-day ; 

 but if we find it to be full measure, shaken 

 together and running over, we ought to maintain 

 that natural theologians can no longer adhere 

 to the arguments of such writers as Paley, Bell, 

 and Chalmers, without deliberately violating the 

 only logical principle which separates science 

 from fetishism. 



To avoid misapprehension, however, I may here 

 add that while Mr. Darwin's theory is thus in plain 

 and direct contradiction to the theory of design, 

 or system of teleology, as presented by the school 

 of writers which I have named, I hold that Mr. 

 Darwin's theory has no point of logical contact 



