55 
AND ITS MEMBRANES IN THE IIO’RSE. 
racic viscera and the brain were sound; and the spinal marrow 
offered no remarkable lesion, except at the lumbar region. The 
fluid contained in the vertebral sheath was abundant, and highly- 
coloured ; the arachnoid membrane reflected a red colour; the 
pia mater was highly injected ; and the sub-arachnoid tissue was 
gorged with blood ; the spinal marrow was of its usual consist¬ 
ence and colour, except that there were, here and there, some red 
points in the medullary substance. 
CASE IV. 
In the course of the night between the 8th and 9th of Fe¬ 
bruary 1825,I was desired to attend to a grey horse, entire, seven 
years old, which, during a journey to Paris, had been seized with 
palsy of the hind limbs. 
He was extended on the litter ; he seemed to suffer little ; and 
was anxious to eat. His hind limbs were entirely deprived of 
feelino- and the power of motion ; but neither the breathing nor 
the circulation was disturbed. In spite of all the means adopted, 
he remained in the same state until the fifth day, when the ap¬ 
petite disappeared ; fever was developed; the strength rapidly 
sunk ; and the animal died on the eighth day. 
Examination twenty hours after death.— There were some marks 
of inflammation on the abdominal viscera, and the right lung 
was gorged with blood, but the brain was in its natural state. 
The spinal marrow was softened and semi-fluid from the tenth 
dorsal vertebra to the lumbar enlargement, and including it. The 
pia mater was slightly injected; but the other membranes were 
sound. 
CASE V. 
An entire draught horse, five years old, who, two hours before 
was affected with incomplete palsy of the hind limbs character¬ 
ized by the total want of the power of motion but the feeling- 
remaining perfect, was committed to my care. 
These remarkable symptoms remained for three days, when the 
animal died. 
Examination twenty-four hours after death.— Slight traces of 
inflammation were found over all the abdominal viscera ; the 
lungs, the heart, and the brain, were sound ; the spinal marrow 
was in its natural state until the last dorsal vertebra, but from 
that point to the entrance of the sacrum the membranes were 
highly inflamed ; all the inferior part of the spinal marrow was 
softened and semi-fluid, while the superior part had undergone no 
change. The pulp of the lumbar nerves, and of the first pair of 
sacral nerves, had little consistence, and their membranes were 
red and injected. 
