WHAT IS DARWINISM? 101 



in which the animal existed, during the forma- 

 tive process. This is perfectly arbitrary. It 

 has no basis of fact. There are but three 

 kinds of locomotion that we know of: in the 

 water, on the ground, and through the air; 

 for all these purposes a half-formed wing would 

 be an impediment. 



The Duke devotes almost a whole chapter 

 of his interesting book to the consideration 

 of " contrivance in the machinery for flight." 

 The conditions to secure regulated movement 

 through the atmosphere are so numerous, so 

 complicated, and so conflicting, that the prob- 

 lem never has been solved by human in- 

 genuity. In the structure of the bird it is 

 solved to perfection. As we are not writing 

 a teleological argument, but only producing 

 evidence that Darwinism excludes teleology, 

 we cannot follow the details which prove that 

 the wing of the gannet or swift is almost as 

 wonderful and beautiful a specimen of contriv- 

 ance as the eye of the eagle. 



Agassiz. 



Every one knows that the illustrious Agassiz^ 

 over whose recent grave the world stands 

 weeping, was from the beginning a pronounced 



