54 ON THE DISEASES OF THE SPINAL CHORD 
abdominal viscera were nearly in their natural state; the brain 
was sound ; and the spinal chord presented no morbid change 
until we arrived at the dorso-lumbar region; we there remarked 
that the adipose tissue which attached the membranes to the 
vertebrae contained a great quantity of effused blood. The dura 
mater was very red, and the spinal sheath enclosed a coloured 
fluid; the sub-arachnoid tissue was gorged with blood ; and the 
pia mater, highly injected, formed a well marked arborization on 
the chord. The colour and consistence of the spinal marrow 
were natural. 
CASE II. 
A bay horse, entire, five years old, of a strong constitution, 
drew a load of plaister to Paris, at ten o’clock in the morn¬ 
ing of the 12th of June, 1824. When he arrived at his journey’s 
end, the driver perceived that he could scarcely stand upon his 
hind limbs. He hastened to unharness him, and endeavoured to 
lead him to a neighbouring stable, but he could not accomplish 
it, for the animal fell on the pavement, and was not able to rise 
again. Having contrived to place him on a little cart, he was 
drawn to my infirmary. The moment he arrived I recognized 
the symptoms of the most complete paraplegia. All the means 
which I adopted were useless; the disease made rapid progress ; 
and at the expiration of thirty hours the animal died, after 
having experienced the most acute suffering. 
Examination twenty-four hours after death .—The organs en¬ 
closed in the splanchnic cavities were sound ; the spinal chord was 
altered at the lumbar region alone. The dura mater, and the 
fatty tissue which surrounds it, were inflamed ; the fluid con¬ 
tained in the vertebral sheath was in greater quantity and more 
highly coloured than usual; the pia mater was very highly in¬ 
jected, and the lamellae which separated it from the arachnoid 
membrane were filled with effused blood ; the spinal marrow was 
a little softened, its medullary substance presenting some red 
points ; the grey substance had undergone no alteration. 
CASE III. 
Half an hour after having taking a heavy fare to La Villette, 
and as he was returning at a good pace to Paris, with the empty 
carriage, a grey, aged, entire horse, was seized with pain in the 
left hind leg, and was forced to stop all at once. Presently the 
right limb was attacked in a similar way, and the horse had de¬ 
cided paraplegia. The most assiduous care could not arrest the 
progress of the disease, and in twenty-two hours after the attack 
the animal died. 
Examination ten hours after death .—The abdominal and tho- 
