CATTLE. 



able to disease or to some purgative drug. The inner coat is a 

 mucous one, thickly studded with minute glands, which, in a state 

 of health, secrete sufficient mucous fluid to lubricate the passage ; 

 and, under the stimulus of a purgative, throw out a fluid increased 

 in quantity, and of a more aqueous character, and in which the con- 

 tents of the intestines are softened and involved and carried away. 



The Duodenum. 

 The Jejunum. 

 The Ileum. 



4. The Caecum. 



5. The Colon. 



6. The Rectum- 



The Mesentery. 

 Mesenteric Glandi. 

 Blood-vessels. 



THE DUODENUM. 



On this f3oat likewise open the mouths of innumerable vessels — 

 the lacteal absorbents — which imbibe or take up the nutritive portion 

 of the food. These vessels ramify across the mesentery, and con- 

 vey this nutriment to a common duct that passes along"^ it, and by 

 means of which it is carried into the great veins in the neighborhood 



