APPENDIX. 545 



work, though on the left is a complete membrane, 

 and near to the stomach of the same side becomes 

 of a considerable thickness, especiaily between 

 the two first bags of the stomach. It has little or 

 no fat, except what slightly covers the vessels in 

 particular parts. It is attached forwards, all along, 

 to the lower part of the different bags which con- 

 stitute the stomach, and on the right to the root 

 of the mesentery, between the stomach and trans- 

 verse arch of the colon, first behind the trans- 

 verse arch of the colon and root of the mesentery, 

 then to the posterior surface of the left or first 

 bag of the stomach, behind the anterior attach- 

 ment. In some of this tribe there is the usual 

 passage behind the vessels going to the liver, 

 common to all quadrupeds I am acquainted with ; 

 but in others, as the small Bottle-nose, there is no 

 such passage, which by the cavity behind the 

 stomach in the epiploon of this animal becomes a 

 circumscribed cavity. 



The spleen is involved in the epiploon, and is 

 very small for the size of the animal. There are 

 in some, as in the Porpoise, one or two small ones, 

 about the size of a nutmeg, often smaller, placed 

 in the epiploon behind the other. These are 

 sometimes met with in the human body. 



The kidneys in the wdiole of this tribe of ani- 

 mals are conglomerated, being made up of smaller 

 parts, which are only connected by cellular mem- 

 brane, blood-vessels, and ducts or infundibula ; 

 but not partially connected by continuity of sub- 

 stance, as in the human body, the ox, kc, every 



