atter stage of the disease, and may cause
renewed paroxysms. The muscles of the limbs or back may be subject to
intermittent spasms, or spasmodic tremors; finally, the hind limbs
become paralyzed, breathing very difficult, and convulsions supervene,
followed by death. The pulse and respirations are increased in frequency
from the outset of the attack. Rabies may possibly be mistaken for
tetanus. In the latter disease we find tonic spasms of the muscles of
the jaws, or stiffness of the neck or back very early in the attack, and
evidence of viciousness is absent.

_Treatment._--As soon as the true nature of the disease is ascertained
the animal should be killed.

_Prevention._--When a horse is known to have been bitten by a rabid
animal, immediate cauterization of the wound with a red-hot iron may
possibly destroy the virus before absorption of it takes place.

PLUMBISM, OR LEAD POISONING.

This disease is not of frequent occurrence. It may be due to the
habitual drinking of water which has been standing in leaden conductors
or in old paint barrels, etc. It has been met with in enzootic form near
smelting works, where, by the fumes arising from the works, lead in the
form of oxid, carbonate, or sulphate was deposited on the grass and
herbage which the horses ate.

_Symptoms._--Lead poisoning produces derangement of the functions of
digestion and locomotion, or it may affect the lungs principally. In
whatever system of organs the lead is mostly deposited there we have the
symptoms of nervous debility most manifest. If in the lungs, the
breathing becomes difficult and the animal gets out of breath very
quickly when compelled to run. Roaring, also, is very frequently a
symptom of lead poisoning. When it affects the stomach, the animal
gradually falls away in flesh, the hair becomes rough, the skin tight,
and colicky symptoms develop. When the deposit is principally in the
muscles, partial or complete paralysis gradually develops. When large
quantities of lead have been taken in and absorbed, symptoms resembling
epilepsy may result, or coma and delirium develop and prove fatal. In
lead poisoning there is seldom any increase in temperature. A blue line
forms along the gums of the front teeth, and the breath assumes a
peculiarly offensive odor. Lead can always be detected in the urine by
chemical tests.

_Treatment._--The administration of 2-dram doses of iodid of potassium
three times a day is indicated. This will for