274 OBLITERATION OF THE LEFT BRACHIAL ARTERY. 
part where it turns round the neck of the scapula, though its 
volume was half as much again as natural. 
The SUB-SCAPULAR ARTERY, at the place where it gives 
origin to the scapulo-humeral, is half as large again as natural. 
It contained a clot. 
Humeral artery, in its course along the humerus, uniformly 
increased in volume to the extent of about three inches, or more : 
the cellular tissue surrounding it assuming a yellow-red aspect, 
while it contributed much to the substance of its external coat. 
OTHER ARTERIES. — The pre-humeral, the grand muscular 
posterior artery , the ulnar artery , the posterior and anterior 
radial arteries , are all partially or generally enlarged, and, in 
addition, present divers clots of blood here and there, or extend¬ 
ing throughout. 
The veins were all sound. But there was a small clot at 
the origin of the plantar arteries. 
The brain and nerves, and cerebro-spinal system altogether, 
were in their normal condition. • 
The CHARACTERS of the CLOTS. —The clot within the bra¬ 
chial artery at its origin was inclosed between the cellular 
tunic and the fibrous (elastic) tunic. It was in appearance 
marbled red and yellow. Owing to some cause, violent or 
sudden in its operation, the internal and middle membranes of 
the brachial artery had given way. The cellular tunic alone 
had withstood the shock, as happens in the case of putting liga¬ 
tures on arteries, owing to its elasticity; when the arterial 
blood, in its pulsations against it, succeeds by little and little in 
insolating, and, as it were, dissecting the fibrous tunic it lies 
upon, until it has worked a hollow in if in which is lodged a 
consistent clot. This is the sort of anormality to which Laennec 
gave the name of dissecting aneurism , of which, perhaps, this 
is the only example in veterinary medicine. The axillary 
portion of the brachial artery likewise contained a dissecting 
aneurism. 
Remarks on the above Case. 
By the Editor of the “ Recueil.” 
The case we have just translated is a fresh and remarkable 
example of intermittent lameness, caused by the obliteration of 
the principal arterial trunks of the limb. In connexion with 
similar cases, published in the “ Recueil" in 1831. by M. Bouley, 
jun., and in 1846, by M. Goubaux, the present may serve to 
