THE SNAKES 359 



desert life; pale yellowish or pinkish with obscure 

 blotches, like the hues of the African desert vipers. 



The method of getting over a yielding soil is exactly 

 like that employed by the species of Cerastes, of Africa, 

 already described. In snakes so widely separated in 

 classification and habitat, this eccentric trait is an ad- 

 mirable example of Nature's trend toward perfect adap- 

 tation. 



THE END 



