AS A SPECIES 



141 



considered species, in some cases, merge so gradually in 

 their intergradations, that they will be regarded simply as 

 geographical races. If not, what shall we call the dividing 

 line between some of the races, which we even now believe 

 have every intergrade between the two extremes of variation ? 

 Just as some of the antelopes and gazelles of Africa are 



Fig. i6. 



Barren Ground Caribou (Rangifer Arcticus, Rich.). 



From Fort Chimo, North Labrador. 



Length of main beam, 58 inches. 



{From Madison Grant's Article in New York Zoological Society's Report.') 



becoming hopelessly confijsed, through the attempt that is 

 being made to make new species with each slight change in 

 the curve of a horn, and as the giraffe is being divided up 

 with each slight change in colour, so are the Caribou going 

 to become more and more mixed if a halt is not called. In 

 the end, it will be victory, I feel sure, for the "lumpers" 

 and defeat for the " splitters." 



