INTRO-SUSCEPTION IN A HORSE. 
451 
quill, yet had preserved its serpentine figure. The left ovarium 
did not exceed the size of a large pigeon’s egg. The uterus 
was contracted and empty. The digestive organs were so 
diminished, that the small intestines were not larger than a 
man’s finger. The liver exhibited some yellow streaks upon 
its posterior surface. The gall-bladder contained about a quart 
of bile. The urinary and thoracic organs were normal. 
Magaziii fur die Gezammte Thierheilkunde , Berlin , 1851. 
P.S. — From the miscellanea of the same journal we extract 
the following : — M. Agnelli, director of the vaccinating com- 
mittee at Algiers, has communicated to the Academy of 
Medicine an interesting discovery he has made ; which is, that 
there occurs an eruption in the camel similar to the cowpock, 
by the inoculation of which the human frame is equally pre- 
served from that dreadful disease, the small-pox. M. A. pro- 
poses to make experiments with this matter, to which he has 
given the name of cameline, the result of which he will com- 
municate to the Academy. 
INTRO-SUSCEPTION IN THE HORSE. 
ETIOLOGY DIAGNOSTIC TREATMENT. 
By M. Reynal, 
Principal Clinical Professor at the Alfort School. 
The annals of science contained, that we knew of, no mention 
of intestinal invagination, when, in 1823, M. Bouley, jun. pub- 
lished two cases of it, one of loose portion of intestine ensheath- 
ing itself, the other of the jejunal portion entering the caecum. 
In 1826 the same gentleman published another case, this time 
consisting of the entrance of the caecum into the colon. 
Two years afterwards, in 1828, M. Dufour, in the “Memoirs 
of the Veterinary Society of La Manche and Calvados,” and 
M. Renault in the “ Recueil,” published two very curious cases 
of intus-susception of the small intestine. And two others, 
not less remarkable, have been reported, one in 1831 by M. 
Di beaux, the other by M. Rey, in the Comptes-rendus of the 
School of Lyons, for the year 1843. Lastly, in 1850, M. Colin 
has registered a case of admission of the caecum into the colon, 
in a horse given up to the School for dissection. 
The additional case we this day publish has appeared inte- 
resting to us, not only on account of the few examples already 
known in veterinary medicine, but likewise, and more so still, 
