THE DINOSAURS 



97 



large, though rather short, body, very long 

 neck and tail, and, for the size of the animal, 

 a very small head. In fact, the head was so 

 small and, in the case of Diplodocus, so poorly 

 provided with teeth that it must 

 have been quite a task, or a long- 

 continued pleasure, according to 

 the state of its di- 

 gestive apparatus, 

 for the animal to 

 have eaten its daily 

 meal. 



An elephant 

 weighing 5 tons 

 eats 100 pounds of 

 hay and 25 pounds 

 of grain for his 

 day's ration ; but, 

 as this food is in a 

 comparatively con- 

 centrated form, it 

 would require at least twice this weight of 

 green fodder. 



It is a difficult matter to estimate the weight 

 of a live Diplodocus or a Brontosaurus, but it 



Fig. 20. — A Single Vertebra of 

 Brontosaurus. 



