INTESTINES IN SHEEP. 157 



and forms a great number of circumvolutions, narrow, elon- 

 gated, and concentric, all the while diminishing its diameter, 

 which, however, at length enlarges. At the root of the mesentery 

 it turns again forward, describing a second large arch ; then a 

 second turn to the left and behind, when it terminates in the 

 rectum. The internal surface of the great intestine is remark- 

 ably smooth. On the external surface there are no irregulari- 

 ties occasioned by cells. 



The coats of the stomach and bowels in the sheep are the 

 same as in the higher mammals generally namely, an internal 

 mucous, a muscular and an external serous, a part of the gene- 

 ral shut sac of the abdominal peritoneum, of which an account 

 has already been given under the horse (p. 55), and the ox 

 (p. 106). 



The stomachs of the sheep placed in a straight line are dis- 

 tinctly represented in fig. 14. 



Fig. 14. 



THE STOMACHS OF THE SHEEP IN A STRAIGHT LINE. 



a, (Esophagus ; b, paunch ; c, reticulum or honeycomb ; c7, omasum or manyplies ; 

 e, abomasum or red ; /, pylorus. 



It were needless to speak of the liver, pancreas, spleen, the 

 lacteals, and mesenteric glands in the sheep, after the full 

 account given of these organs under the horse (pp. 59, 65) and 

 the ox (pp. 109, 110, 118, 119, 131, 132.) 



