THE COW 33 



the cow's jaws move as yours do when chewing ? 

 How do yours move ? (The upper jaw does not 

 move. The lower jaw moves chiefly up and down.) 

 Do the cow's jaws move in that way? (Her upper 

 jaw does not move, but her lower jaw moves from one 

 side to the other.) What does this sidewise motion 

 of the lower teeth on the upper teeth do for the grass? 

 (Grinds it up. It is her mill in motion.) Which 

 teeth do the grinding? (The back teeth.) Let us 

 see if they are good grinders. [Have jaw of cow 

 if possible.] (They are broad, flat, and hard.) 

 Is it a good thing that the cow can pack away her 

 food, and chew it when at rest? (Yes. She can 

 gather grass in the cool of the day, then lie down in 

 the shade when the sun is hot, and eat it. She does 

 not have to stand as much as she otherwise would, 

 but can rest while eating.) 



In the winter time, what does the cow eat instead 

 of grass? (Hay, straw, and fodder.) She eats these 

 as she does the grass, i.e. chews them slightly, swal- 

 lows, then re-chews as a cud. What besides grass, 

 hay, and straw does the cow like to eat? (Corn.) 

 How does she get hold of the ears of corn? How 

 does she eat corn? What becomes of the cob? 

 What else does the cow like ? (Oats, meal, and bran.) 



