42

The temperature rises to 107°F. or 110°F., feeding
and rumination cease, and great depression sets in. A pain-
ful, hot and very hard swelling appears in the dewlap, throat
and between the lower maxillæ.

This swelling is so hard that pressure of the fingers
makes no depression, but a neck rope on the animal will
cause a deep cleft in it. The swellings vary in size, but
usually fill up the whole of the loose dewlap which is so
plentiful in Indian cattle.

Saliva flows from the mouth and a thick mucous dis-
charge from the nose.

The pulse is frequent and respiration becomes increas-
ingly difficult, the condition bordering on suffocation with
the nose extended, the nostrils dilated, and the chest walls
heaving. The mucous membranes are hæmorrhagic and of
a deep-red colour.

Colic and intestinal symptoms then set in. Constipa-
tion gives place to diarrhœa and then dysentery accompanied
by severe straining. The animal lies down from sheer weak-
ness with his head turned on his flank and dies in a condition
of stupor within 24 hours.

                     Post-mortem appearances.

On cutting into the swelling a sero-gelatinous fluid
exudes from the subcutaneous tissues. This exudate is more
often clear and serum-like, but sometimes there is a
hæmorrhagic appearance.

The 4th stomach and intestines are much inflamed.
The mucous membrane is brownish red in colour with
hæmorrhagic patches throughout, in which the mucous coat
has quite broken down and large raw ulcers have formed.

The contents are bloody, and there is seldom any food
at all in the abomasum and intestines,

The mesenteric lymphatic glands are enlarged and some-
times hæmorrhagic.

The peritoneal cavity contains an excess of peritoneal
fluid.

The lungs are generally normal or slightly œdematous.
The pleura is generally highly injected and there may be
pleural adhesions.