ON VERTIGO AND PARAI.YSIS. 
15 
noise, or the least touch, caused him to start, and threatened a re¬ 
currence of the tetanic spasm. This took place on again ele¬ 
vating the head, when the symptoms became more violent than 
ever. 
This dreadful excitation passing over, the animal’s sufferings 
were thought, and hoped, to have terminated. The heart’s action 
had apparently ceased, and the respiration was imperceptible ; but, 
after lying for a few minutes in this state of extreme exhaustion, 
sensibility was again manifested, and, on placing him on his legs, 
he tottered along as if unconscious of what he was doing or where 
he was going. The slightest touch or noise caused a return of the 
paroxysms; the tail became partially erected and tremulous ; the 
jaws fixed; the eyes retracted, and pressure on the facial nerve 
caused spasmodic twitchings of the muscles of the face, while the 
respiration and circulation were much hurried. He maintained a 
standing posture, as well as he could, for some minutes, when the 
muscles of the neck began again to contract, drawing the cervical 
column towards the withers, and he fell over backwards. For a 
short time he endured the most violent tetanic spasm imaginable ; 
but it was the last: he died in a state of complete asphyxia, thirty- 
five minutes after the exhibition of the poison. 
Post-mortem appearances .—The stomach was perfectly healthy, 
but an inflammatory blush pervaded the intestines. The lungs 
were gorged with blood. On laying open the spinal canal, a mass 
of disease presented itself. The vertebral veins were much con¬ 
gested, and the theca vertebralis highly inflamed. On cutting 
through the spinal cord, the motor division was perceived to be 
darker-coloured than the rest, and the nerves taking their origin 
from it were inflamed. 
Unfortunately, the brain was not examined, although the symp¬ 
toms indicated so much cerebral derangement, the head being 
wanted for anatomical purposes. Thus the experiment was in¬ 
complete. The carcass quickly underwent decomposition, and the 
foctor emitted from it was almost intolerable. 
ON VERTIGO AND PARALYSIS. 
By Mr. C. Snewing, V.S., Riiyhy. 
In my last paper I made use of the word vertigo, in allusion 
to a disease which I wished to see placed upon record. I have 
always understood that word as being merely figurative of cerebral 
(leranyement, nor can 1 see any grounds for authors having adopted 
tlie words Vertigo, Lethargy, &c., as descriptive oi particular dis¬ 
eases. Some authors have been not a little careless on this point, 
