280 PNEUMONIA—ST. PANCRAS SCHOOL. 
monary artery. The cure of all inflammation is the same, if 
suppuration has not taken place, namely, to lower the action of 
the heart and arteries, and to strengthen the smaller bloodves¬ 
sels. We have no medicine in use in the horse that will pro¬ 
duce perspiration, without increasing the action of the heart, and 
thereby increasing the disease. Thus blisters are not proper. 
The case rarely occurs in which blisters can be applied without 
increasing the pulse. The better practice is, the introduction of 
setons ; rowels which are deeply seated are more contiguous to the 
diseased parts. 
It was formerly the practice to put on a quantity of clothing, 
in order to produce heat, supposing that this disease originated 
from cold. This practice is very well in the human subject, for 
you promote perspiration, and perspiration, by evaporation, gene¬ 
rates cold ; thus the same effect is produced as by exposure to 
cold : but as we cannot produce perspiration in the horse with¬ 
out increasing the action of the heart, we employ absolute cold. 
Where horses have been kept in a hot stable, and clothed warm, 
we should order them to be turned out into the cold air, and the 
pulse will be presently lowered. 
I have been in the habit of giving small doses of aloes, to 
excite nausea. I know that nausea is produced, because the 
horse is off his food, nor will he eat again until the medicine is 
carried off by purging. By producing nausea, we lower the 
pulse, and lessen the circulation. We never produce purging if 
possible. 
It is good practice to give small doses of nitre, resin, or turpen¬ 
tine, so as to produce a very gentle diuretic effect: remember it 
must be gentlcy or you cause a disease of the kidneys: for the 
fact is, that in this disease the circulation is so much increased 
in the system, that there is a kind of inflammation everywhere. 
And the deeper seated parts, if they are stimulated by medicines, 
are sure to become inflamed and gangrened. 
Thus we give very gentle doses of nitre, or soap, combined 
with a gentle laxative every other day. I have given foxglove, 
and hellebore, also aconitum, more than thirty years ago, but 
never produced any very good effect. 
Mr. Percivall speaks very highly of hellebore. I have known 
it produce salivation, and very much increase the pulse. I do 
not, however, think it a dangerous medicine, unless given in very 
large quantities, and I do not recollect a case where the horse 
died from the effect of it. The dose is 9i to 3ss, and 9ij by 
degrees to 
A very frequent symptom of this disease is shivering, and it 
has been considered that that is not a proper time to bleed. 
