TWO YOUNG NATURALISTS. 



199 



"Speaking of apparatus, no doubt you are acquainted 

 with the arrangement of the stomach of the ruminants, 



SKULL OF A KODENT. 



TEETH OF AN IXSECTIVOKOUS ANIMAL. 



or animals that chew the cud. This stomach consists 

 of four separate parts: 1, the rumen, or paunch; 2, 



INHECTIVORA : SHHEW-MICE. 



the reticulum, or honeycomb bag ; 3, the psalterium, 

 or manyplies ; 4, the abonasum, or rennet-stomach. 



