48 Permanence and Evolution. 



fine haired, naked, and other peculiar races 

 of cattle in South America, still less to loose 

 talk like that of " two races of cattle in Brazil, 

 one like European cattle (query, what breed ?), 

 the other peculiar with remarkable horns," and 

 so on. But something more must be said on 

 the now famous niata breed, which Darwin, an 

 eye-witness, speaks of thus : 



"These cattle occasionally occur in Europe, 

 but not as a separate permanent race, i.e. (in 

 Europe no one breeds them apart, as Indians 

 and others in South America seem to have 

 done)," they are considered by Rutimeyer 

 nearly allied to the extinct form called by 

 him Bos trochoceros; their peculiar formation, 

 which causes them to die off during a drought, 

 closely resembles that of the extinct Indian 

 ruminant Sivatherium. Now here, I think, we 

 may see that the niata race is not a new but an 

 ancient form, extinguished by natural selection 

 in time of drought like the Sivatherium which 



