492 NORTH OF ENGLAND VETERINARY MEDICAL ASSOCIATION. 
There is a peculiar stepping short with the extremities, par¬ 
ticularly the fore—the limbs being put down with a heavy 
thump as if a want of nervous power existed to direct the placing 
of the feet. If the animal is brought suddenly to a stand 
tremors commence, slight at first, but by degrees increasing in 
intensity; she staggers and falls as if shot, the whole of the 
limbs being doubled underneath the body; these symptoms 
had increased during the few previous weeks to such an 
extent that the poor creature would fall two or three times 
a day. 
A knotted and irregular fulness existed in both parotid 
glands, particularly in the left: the nodules, varying in 
size, were attached to the skin but unconnected with the 
glandular structure as indicated by their mobility. The 
salivary secretion was not known to be impeded. 
Owing to circumstances of an uncontrollable character, 
the head, together with the first, second, and third 
cervical vertebra, were the only portions secured from the 
ruthlessness of a knacker. These I have attempted to give 
a brief description of. 
When the parts were separated, about half an ounce of 
serum escaped from the spinal cord, which was observed to 
be altered in structure. 
The brain was next carefully removed, when its entire sub¬ 
stance and meninges were found to be congested, the capil¬ 
laries being most beautifully delineated, and the larger 
vessels stretched, thinned, and transparent. The general 
substance of the cerebrum and cerebellum was found to be 
healthy, the ventricles contained a very minute quantity of 
fluid, and the choroid plexus of each was enlarged, congested, 
and possessed an accumulation of calcareous matter as large 
as a medium-sized hazel nut; the smaller granules which 
made up the whole being about the size of a lentil. 
The medulla oblongata as it leaves the cerebellum ex¬ 
hibited signs of disorganisation; its internal structure was 
softened, pulpy, and not unlike the medullary and corti¬ 
cal portions of the brain when mixed up with a spatula. 
In fact, the integrity of the cord was so far destroyed, down 
to the point where it was cut off at the third vertebra, that its 
own weight was sufficient to destroy its form, and the mass 
oozed from the membranes like curds. 
When the parotid glands were exposed, melanotic tumours 
presented themselves situated between the sulci of the gland¬ 
ular structure which was displaced ; those in the left were as 
large as a walnut. 
The tonsils were enlarged—the investing membrane 
thickened, rough, and studded with numerous bodies not 
