288 



CATTLE. 



the case when the pellet of food is returned for remastication — it is 

 thrown into the canal from the reticulum — it is seized by the power- 

 ful muscles at the base of the gullet, and carried up by the spiral 

 muscles of that tube in order to be remasticated. It will be seen the 

 upper pillar (situated towards the right in the living subject), and 

 the lower part of the opening made by the relaxation of the pillars, 

 belong to the reticulum ; the lower pillar and the anterior portion 

 of the opening (situated towards the left) belong to the roof of the 

 rumen. This is veiy satisfactorily seen in the dried stomach of a 

 young calf. 



e is the manyplus, or third stomach, and through which the canal 

 is still to \)e traced to 



b, the abomasum, or fourth, or true digesting stomach. So that, 

 as was asserted, this canal leads to no particular stomach exclusively, 

 but to all of them according to circumstances. 



We are now, perhaps, prepared to return to the consideration of 

 the first cut (p. 285). 



c c represent the form of this stomach in the greater part of rumi- 

 nants, and particularly in oxen and sheep. It is situated somewhat 

 obliquely in the abdominal cavity, and occupies nearly three-fourths 

 of it. It is divided into two unequal compartments, or sacs, and 

 reaches from the diaphragm to tte pelvic cavity. By its superior 

 surface it is attached to the sublumbar region by its vessels, nerves, 

 and a portion of mesentery. On the right side it is covered by a 

 portion of the intestines ; on the left side it is more elevated, and 

 is in contact with the left flank. It is on this account that we 

 are sometimes induced to adopt the imsurgical mode of giving relief 

 in cases of hoove ; for when we plunge our lancet or knife into the 



