VESICAL AND BILIARY CALCULI. 
119 
marks; these are, the fact that the Fasciola is found in fresh 
water, in the intestines of the bream and sepia lotigo, and 
in the liver of the sheep. The Filaria Equi being found, ac¬ 
cording to Sir E. Home, in the circulating blood of the horse, 
and by Dr. Hardtman and Capt. Wyatt, in the cellular tissue 
behind the peritoneum. To these we may add the well-known 
fact of the Filaria found in the aqueous humour of the eye. The 
opinion that worms may make their way to different parts of 
the body, through the blood vessels, by means of the circula¬ 
tion, is farther corroborated by Sir Astley Cooper’s observation 
of the worm found in the coeliac artery of the ass. 
There is so little positively ascertained as to the natural his¬ 
tory of worms which infest the bodies of living animals, that it 
still remains an interesting object of inquiry. 
(To be continued,) 
lExtractjS from dForrigit SJournal^. 
- ^ - 
VESICAL AND BILIARY CALCULI. 
(Continued from page 84.) 
VESICAL CALCULUS IN THE HOG. 
A BARROW pig which up to the 7th month had manifested 
perfect health, from that period fell away so much, although its 
appetite remained unimpaired, that two months afterwards the 
owner had it destroyed. He attributed this decline to a diffi¬ 
culty in passing its urine, which distressed the animal to such 
a degree that every time it wanted to stale it quite moaned with 
pain, rolling upon its back, arising and posturing itself (for stal¬ 
ing), arching its spine and making violent efforts, too often inef¬ 
fectual ; at other times, and oftenest indeed, after much strain¬ 
ing, a little urine was voided ; but this was speedily followed 
by fresh efforts : occasionally, after having rolled about and lain 
upon its back, it obtained relief by a flow of urine in a full 
stream. The urine was at all times perfectly clear. 
This account was sufficient to draw M. Reiss’s attention to 
the presence of vesical calculus. He regretted he had not been^ 
