102 Mr. Home’s Observations on the Stomach of the Whale. 
EXPLANATION OF THE PLATES. 
(PLATE III.) 
This plate represents the first cavity of the stomach of the 
bottle-nose porpoise laid open to shew its internal structure. 
a a. The oesophagus lined with cuticle. 
b b. The first cavity of the stomach, also lined with cuticle. 
c c. The glandular structure forming folds round the ori- 
fice leading to the second cavity, also lined with cuticle. 
(PLATE IV.) 
This plate represents the internal surface of the second, 
third, and fourth cavities of the stomach. 
a a. The outside of the first cavity to shew its external 
form. 
b b. The inner surface of the second cavity, made up of a 
honey-combed structure, composed of soft membraneous 
folds, which have no cuticular covering. 
c c. The third cavity. 
d d. The fourth cavity. 
e e. The orifices of excretory ducts of glands. 
ff. The enlargement of the substance immediately beyond 
the pylorus, into which the common duct from the liver and 
pancreas opens. 
g. The opening of the common duct. 
