WORMS BETWEEN THE TUNICS OF THE STOMACH. 571 
This dilatation was doubtless attributable to the presence of 
the strongyli filariae that had irritated the internal membrane. 
These phenomena are very similar to those of the serous mem¬ 
branes, which, in their first stage, present an injection of the 
sub-serous vessels, and in their completion, a false membrane, a 
fibrous transformation, a cartilaginous and osseous deposit. We 
frequently see these membranes presenting an osseous or ossi¬ 
form capsule, especially in aneurismal deposits. 
This is usefully considered with reference to the production of 
worms within the great mesenteric artery, and the alteration of 
structure which they cause. These parasites are lodged in nu¬ 
merous little cells, which are formed at the expense of the arte¬ 
rial tissue. The tissue becomes tumefied—it assumes a con¬ 
siderable thickness, and is formed into a substance fibrous, hard, 
resisting, osseous. Some have considered this change as of a 
scirrhous nature, but it is not so; and it is of importance in 
animal pathology to distinguish the fibrous transformation, 
which passes into the state of cartilage and bone, but which 
never degenerates into ulceration, as scirrhus and cancer do. 
Journal, Juin 1835. 
WORMS BETWEEN THE TUNICS OF THE STOMACH. 
As an illustration of the last case, the following account of 
the dissection of a leopard is transcribed from the Journal of the 
Medical Superintendent of the Menagerie of the Zoological So¬ 
ciety of London :— 
Sept. 6th, 1835.—This animal seems to have a very unpleasant 
taste in his mouth, and has been half sick once or twice. As he lies 
in his den he heaves much at his flanks, and the countenance is 
peculiarly distressed. He is evidently ill; but he is a savage beast, 
and cannot be meddled with. Give six grains of calomel, and 
the. same quantity of the white antimonial powder. 
6th .—It died last evening. On opening it there was the most 
extensive and acute peritoneal inflammation that I ever saw. 
There was scarcely a portion of the membrane unaflfected, and 
the pain, one would think, must have been excessive ; yet there 
was nothing observable, or, at least, there was nothing observed 
in the countenance or appearance, or habits of the animal until 
the day on which it died. The cause of this peritoneal inflam¬ 
mation was most singular. Near the fundus of the smaller 
