154 Permanence and Evolution. 



THE BEARING OF GEOGRAPHICAL 

 DISTRIBUTION ON THE ORIGIN 

 OF LIVING TYPES. 



THE geographical distribution of animals and 

 plants is generally supposed to lend strong 

 support to the hypothesis of evolution ; and any 

 mind at all impartial must see that it offers a 

 nearer approach to evidence than anything else 

 that can be urged. No one but an advocate 

 can deny that the general aspect of the facts 

 connected with organic geography does tend 

 to suggest the idea that genera, species, etc., 

 originate by descent, even if in some manner the 

 nature of which is now inconceivable ; or, to 

 express the matter entirely without hypothesis, 

 it tends to show that a new form of life only 



