creased by the shaggy hair which, though short and light on the back 

 part of his body, forms a dense mat of dark brown over the high 

 hump, shoulders and fore-legs, while the head is bowed down by 

 the weight of the heavy frontlet and thick beard. Huge herds 

 of these enormous beasts, numbering hundreds of thousands each, 

 were wont to live on the rich pasturage of the great western plains. 

 There, to protect themselves from flies and other pests, they prac- 

 ticed the peculiar defense of wallowing in the damp swamp lands 

 until the body was covered with a coat of mud which, when dried, 

 would serve as an armor for many days. These "wallows" are 

 still to be found where every other evidence of their former occu- 

 pants has long since passed away. In autumn, whole tribes would 

 migrate southward, following well-established trails and traveling 

 much faster than their awkward frames would cause one to 

 suppose. 



