630 
EPIDEMIC DISEASE IN CATTLE. 
falling into a gangrenous state where the artery is tied, if there 
are no anastomosing branches to keep up the circulation ; but as 
there were vessels here that would keep up the circulation, beside 
those of the skin, and which must, in this case, be much enlarged, 
there can be little or no danger ; but as there will be some dimi- 
nution of the natural heat, from the diminution of the quantity 
of blood, I would advise to keep the part rather warm than cold, 
by applying flannel bandages. Warm fomentations may also 
be required. 
I think the cow is likely to recover. I have tied the tibial 
artery in a mare, which did well, and the metatarsal artery in a 
horse, with equal success ; and why should not the cow recover ? 
If secondary haemorrhage does take place, certainly tie a vessel 
higher up, even the femoral. 
As to the time required permanently to stop haemorrhage by 
pressure, it depends on circumstances which are numerous, and 
on which I have not time to dilate ; but I have found, by some 
experiments that I have made, that the pressure of a ligature on 
the femoral artery of a dog for twelve hours was sufficient to pre- 
vent bleeding. So much for your first query. The second and 
third are already answered. To the fourth, I would say, that 
nothing of importance ultimately is likely to result farther than 
depriving the part it supplies of sensation, and in some degree 
increasing the danger of gangrene, from the tying of the artery. 
The common tonics will do, with a light full diet of boiled 
food ; a little ale may be given if wine is thought too expensive. 
Let me know the sequel. 
I am, my dear Sir, 
Your’s very truly. 
Mr. Broth erton to Professor Dick. 
Dear Sir, — According to your request, I send you the 
sequel of the case that formed the subject of my last communica- 
tion ; and I beg leave to thank you for your kindness and 
promptitude in answering the queries I made free to put to you. 
The patient was, at that time, in a high state of constitutional 
fever, with the powers of nature so debilitated as to leave but 
little probability of overcoming it. As it was symptomatic, our 
first treatment, if practicable, would, no doubt, be “ to remove 
the cause,” then to allay the morbid action produced, and, lastly, 
to restore the deranged function. But as the part affected, caus- 
ing the general nervous excitement, was in such a state as pre- 
vented uS from fulfilling the former indication, we endeavoured 
