APPENDIX. 203 



takes another direction. It is continued along the upper 

 edge of that cavity, and terminates within the orifice 

 of a small bag, which may be termed the third cavity. 

 Tliis band on one side and the great ridge on the other 

 form a canal, which leads from the oesophagus down to 

 the cellular structure in the lower part of the first 

 cavity. The orifice of the second cavity, when this 

 muscle is not in action, is nearly shut ; it is at right 

 angles to the side of the first. The second cavity forms 

 a pendulous bag, in which there are twelve rows of 

 cells formed by as many muscular bands, passing in a 

 transverse direction, and intersected by weaker muscu- 

 lar bands, so as to form the orifice of the cells. Above 

 these cells, between them and the muscle which passes 

 along the upper part of this cavity, is a smooth surface, 

 extending from the orifice of this cavity to the termina- 

 tion in the third. 



" From this account, it is evident that the second 

 cavity neither receives the solid food in the first in- 

 stance, as in the bullock, nor does the food afterwards 

 pass into the cavity or cellular structure. The food 

 first passes into the first compartment of the first cavity, 

 and that portion of it which lies in the recess immedi- 

 ately below the entrance of the oesophagus, under which 

 the cells are situated, is kept moist, and is readily re- 

 turned into the mouth along the groove formed for that 

 purpose, by the action of the strong muscle which sur- 

 rounds this part of the stomach, so that the cellular 

 portion of the first cavity in the camel j^erforms the 

 same ofiice as the second in ruminants with horns. 

 While the camel is drinking, the action of the muscular 



