re is much more swelling
of the lids and weeping from the eyes than in others. If the animal is
bled at this period the blood is found more coagulable than normal, but
at a later period it becomes of a dark color and less coagulable. There
is great diminution or total loss of appetite, with an excessive thirst,
but in many cases cold-blooded horses may retain a certain amount of
appetite, eating slowly at hay, oats, or other feed. There is some
irritation of the mucous membrane of the respiratory tract, as shown by
discharge of mucus from the nose, and by cough. Pregnant mares are
liable to abort.

We have, following the fever, a tumefaction, or edema, of the
subcutaneous tissues at the fetlocks, of the under surface of the belly,
and of the sheath of the penis, which may be excessive. The infiltration
is noninflammatory in character and produces an insensibility of the
skin like the excessive stocking which we see in debilitated animals
after exposure to cold. In ordinary cases the temperature has reached
its maximum of 105 deg. or 106 deg. F. in from 24 to 48 hours from the origin of
the fever. It remains stationary for a period of from 3 to 4 days
without so much variation between morning and evening temperature as we
have in pneumonia or other serious diseases of the lungs. At the
termination of the specific course of the disease, which is generally
from 6 to 10 days, the fever abates, the swelling of the legs and under
surface of belly diminishes, the appetite returns, the strength is
rapidly regained, the mucous membranes lose their yellowish color, which
they attain so rapidly at the commencement of the disease, and the
animal convalesces promptly to its ordinary good condition and health,
and rapidly regains the large amount of weight which it lost in the
early part of the disease, a loss which frequently reaches 30, 50, or
even 75 pounds each 24 hours. For the first three days of the high
temperature there is a great tendency to constipation, which should be
avoided if possible by the use of the means recommended below, for, if
it has been marked, it may be followed by a troublesome diarrhea.

_Terminations._--The terminations of simple influenza may be death by
extreme fever, with failure of the heart's action; from excessive coma,
due generally to a rapid congestion of the brain; to the poisonous
effects of the debris of the disintegrated blood corpuscles and the
toxin of the disease; to an asphyxia, followi