EXPLANATION OF PLATE YI. 



FEET AND STOMACHS. 



1. Foot of an ox. Bisulcated foot, or bifurcated hoof ; cloven-footed 5 

 two-hoofed. 



2. Camel's foot, showing the pad or cushion which prevents its sinking in 

 the sand. 



3. Llama's foot, showing the sharp hoof for climbing rocky hills. 



4. Mole's foot, formed for digging or scooping out the earth. 



5. Sloth's sharp, strong, crooked claws, for clinging to the branches of 

 trees, on the under side of which they live suspended. 



6. Foot of the Armadillo, Dasypus, fitted for rapid burrowing, 



7. Lion's toe. A, represents the toe with claw sheathed. B, shows the 

 retractile apparatus, with claw in same position. C, claw unsheathed. 

 D, claw in same position, with tendons exposed. 



8. Horse's foot ; solipedes, hoofs whole, not cloven or divided. Solidun- 

 gulate, one-hoofed. 



9. Elephant's foot, showing the horny shoe enclosing all the toes. 



10. Rhinoceros' foot ; three toes on each foot incased in hoofs. 



11. The fore foot or hand of a Seal, used as a fin for swimming. 



12. A Dolphin's fore fin, nipper or paddle for swimming. 



13. Stomach of a ruminant or cud-chewing animal. 



A. ^Esophagus or Gullet, expanding into the rumen or paunch. 



B. Rumen or Paunch. It is the first stomach and much the largest in the 



adult animal, but small in the young. 



C. Yalve allowing the food to pass from the rumen into the reticulum. 



D. Hood, Honey-comb-bag, Bonnet, or Reticulum. The second stomach. 



E. Omasus, Manyplies, or Psalterium. This third and smallest stomach does 



not properly exist in the Camel or Llama. 



F. Orifice of the Omasus. 



G. Abomasus, the fourth stomach, the true organ of digestion, is next in 



size to the rumen or paunch. In calves it is the largest stomach, the 

 milk passing from the gullet immediately into it. When salted and 

 cured, this stomach of the calf is called rennet, and used for making 

 cheese. 



14. Cells of the reticulum or second stomach of the camel. These cells 

 can be dilated so as to contain an unusual quantity of water. 



