SELECTION ON MAN. 319 



America, and in Brazil; the Tasmanian, Australian, 

 and New Zealander in the southern hemisphere, die 

 out, not from any one special cause, but from the 

 inevitable effects of an unequal mental and physical 

 struggle. The intellectual and moral, as well as the 

 physical, qualities of the European are superior; the 

 same powers and capacities which have made him 

 rise in a few centuries from the condition of the 

 wandering savage with a scanty and stationary popu- 

 lation, to his present state of culture and advancement, 

 with a greater average longevity, a greater average 

 strength, and a capacity of more rapid increase, 

 enable him when in contact with the savage man, to 

 conquer in the struggle for existence, and to increase at 

 his expense, just as the better adapted, increase at the 

 expense of the less adapted varieties in the animal and 

 vegetable kingdoms, just as the weeds of Europe 

 overrun North America and Australia, extinguishing 

 native productions by the inherent vigour of their 

 organization, and by their greater capacity for existence 

 and multiplication. 



The Origin of the Races of Man. 



If these views are correct ; if in proportion as 

 man's social, moral, and intellectual faculties became 

 developed, his physical structure would cease to be 

 affected by the operation of " natural selection," we 

 have a most important clue to the origin of races. 

 For it will follow, that those great modifications of 

 structure and of external form, which resulted in the 



