107 
POISONING BY HEMLOCK. 
rated easily by burning sulphur upon an iron plate, which for 
safety sake, in use in stables, should be placed in the middle 
of a pail containing water. As an application for mange and 
other deranged states of the skin of the horse, No. 5 fluid 
will be found unequalled. It may be used diluted with 
eight parts of oil or twelve or sixteen, and in this diluted 
state may be applied to nude mangy spots with friction for 
fifteen or twenty minutes. I think twelve parts of oil to one 
of the acid will be found to be most useful as a skin dressing 
for general use. In some subjects with indurated nude skins I 
have applied the acid one to four with a certain amount of 
friction, producing a state a little short of blistering; this 
will be followed by the best possible results when carried out 
in the treatment of old mangy patients. The application of 
the acid requires a certain amount of care, for in some horses 
the skin becomes greatly irritated by its use; but such occur¬ 
rences are rare. Carbolized oil possesses an extraordinary 
power of rapidly inducing the growth of hair. No. 5 fluid is 
best for dressing sores, &c., I generally use one to four or six 
of oil, and pure as a dressing to indolent ulcers. The carbolized 
oil, when largely diluted, produces little or no effect on in¬ 
dolent ulcers, and I prefer it undiluted for that purpose. It 
is worthy of a trial in such cases. If the surface of an irri¬ 
table ulcer is painted over with No. 5 carbolic fluid, and 
then poulticed, the result will be most pleasing. As a 
dressing to farcy ulcers it is unequalled. The antidote 
recommended for carbolic acid when swallowed in toxical 
doses is oil. 
POISONING BY HEMLOCK.— CON1UM MACU 
LATUM. 
By John Gerrard, M.B.C.V.S., Market Deeping. 
The poisonous nature of this plant has long been known, 
ever since, indeed, the first great martyr of intellectual liberty 
meekly and bravely accepted a decoction of it from the hands 
of his weeping gaoler, and died in consequence, 400 years 
. before the Christian era. 
It is one of the most widely diffused of the natural order 
Umbelliferce, easily recognised by its tall, smooth, glossy 
green stems, dotted with brownish-purple spots, and its 
fetid smell. 
XLVI. 
8 
