his is not available any strong caustic may be used. Punctured wounds
should be laid open with a knife and the surfaces freely cauterized. It
should not be forgotten that the slightest scratch from the tooth of a
rabid animal may lead to the development of hydrophobia in man, and it
therefore behooves all persons bitten by dogs to take every precaution
possible. Even though the animal at the time may appear to be healthy,
some strong antiseptic should be applied to the wound, and the animal
carefully watched until all possibility of his having the disease has
passed. Many persons have died from slight wounds inflicted by animals
appearing at the time to be perfectly well.

Attention should also be directed to the fact that wounds where the teeth
of the animal pass through the clothing are not so dangerous as those
where no such protection intervenes. Bites about the face and head are
much more frequently followed by rabies than those inflicted on the
extremities, and, of course, where wounds are deep the chances of
infection are much greater; where injuries of the latter kind are
inflicted it is practically out of the question to thoroughly cauterize
them, and the patient should immediately receive the Pasteur treatment.
It is probable that if thorough cauterization be not done within five
minutes that it cannot be relied on to prevent the development of the
disease; where there is any doubt the only safety lies in the Pasteur
treatment. Where a person is bitten by a dog supposed to be rabid the
animal should be caught, if possible, and kept carefully isolated for at
least ten days; should it appear well after the expiration of this period
no fear need be felt as to the results of its bite, but if it should die
the head should be cut off, packed in ice, and sent to some laboratory
for examination.

_Under no condition should the animal be killed, as the best possible
proof of the harmlessness of its bite would lie in its continuing to
live._

_Treatment._--Since the epoch-making researches of Pasteur, laboratories
have been installed in various parts of the world for the purpose of
making a vaccine by means of which it is possible, by gradual
immunization, to prevent the development of hydrophobia in persons bitten
by rabid dogs. This is done by a series of injections of a weak virus
prepared according to the directions of Pasteur. _It should always be
remembered that no harm can come from the treatment whether the pa