into the lung tissue and cause
a serious attack of pneumonia, or it may fill up the bronchial tubes and
prove fatal by suffocating the animal. When the hemorrhage is from the
lung it is accompanied with coughing; the blood is frothy, of a bright
red color, and comes from both nostrils; whereas when the bleeding is
merely from a rupture of a vessel in some part of the head (heretofore
described as bleeding from the nose) the blood is most likely to issue
from one nostril only, and the discharge is not accompanied with
coughing. The ear may be placed against the windpipe along its course,
and if the blood is from the lungs a gurgling or rattling sound will be
heard. When it occurs in connection with another disease it seldom
requires special treatment. When caused by accident or overexertion the
animal should be kept quiet. If the hemorrhage is profuse and continues
for several hours, 1 dram of the acetate of lead dissolved in a pint of
water may be given as a drench, or 1 ounce of the tincture of the
perchlorid of iron, diluted with a pint of water, may be given instead
of the lead. It is rare that the hemorrhage is so profuse as to require
internal remedies. But hemorrhage into the lung may occur and cause
death by suffocation without the least manifestation of it by the
discharge of blood from the nose.

TUBERCULOSIS OF THE LUNGS.

Pulmonary consumption or tuberculosis has been recognized in the horse
in a number of instances. The symptoms are as of chronic pneumonia or
pleurisy. There is no treatment for the disease.

HEAVES, BROKEN WIND, OR ASTHMA.

Much confusion exists in the popular mind in regard to the nature of
heaves. Many horsemen loosely apply the term to all ailments where the
breathing is difficult or noisy. Scientific veterinarians are well
acquainted with the phenomena and locality of the affection, but there
is a great diversity of opinion as regards the exact cause. Asthma is
generally thought to be caused by spasm of the small circular muscles
that surround the bronchial tubes. The continued existence of this
affection of the muscles leads to a paralysis of them, and the forced
breathing to emphysema, which always accompanies heaves.

Heaves is usually associated with disorder of the function of digestion
or to an error in the choice of feed. Feeding on clover hay or damaged
hay or straw, too bulky and innutritious feed, and keeping the horse in
a dusty atmosphere or a badly ventilated stabl