184 The Development Theory. 



the formation and the differentiation of the 

 land masses of the globe and the successive 

 extinctions and creations of plants and ani- 

 mals; all these facts, notwithstanding the 

 imperfections of the geological record, and the 

 fact that many of the older forms of animals 

 were nearly as much specialized as those now 

 living, tend strongly to prove that on the 

 whole the world as it now exists has been the 

 result of progressive development, one form 

 coming generically from another; the animal 

 and plant worlds constituting two systems 

 of blood relations rather than sets of inde- 

 pendent creations." Dr. Packard's Zoology, 

 pp. 671-2. 



EVOLUTION. 



The doctrine of theistic evolution, that is, 

 the doctrine that declares evolution to be 

 God's process of creation, is now taught by all 

 the higher colleges of our country. Among 

 its teachers it enrolls the names of Dr. Mc- 

 Cosh of Princeton, to represent the Presby- 

 terians; Professor Dana of Yale, to represent 

 the Congregationalists ; Professor Packard of 



