EXPLANATION OF PLATE 6. 



Fig. 1. Head of the Buffalo. 



Fig. 2. Head of the Musk Ox of America. 



Fig. 3. Skull of the Ox. 



Fig. 4. Stomach of a ruminant (sheep.) o, the oesophagus. p t the 

 paunch. fe, the bonnet or reticulurn. /, the many plies or omassum, ca t 

 the cailktte or rennet b;ig. d, the intestine. 



Fig. 5. The same opi ned to show how the cEsophagus terminates in the 

 bonnet and manyplies. (The same letters indicate the same parts.) 



ORDER OF CETACEA. 



Fig. 6. The porpoise. a, the vent or spiracle. 

 Fig. 7. The Whale. 



Fig. 8. Skull of a Whale./, the whalebone. w, the upper jaw. <, 

 the cranium. mi, the lower jaw. 



Fig. 9. The Cachalot, or Spermaceti whale. 



