paroxysm of coughing may be severe and "husky" in character.

The odor of the expired air, the character of the discharge and the
respiratory sounds found on making a careful examination are important aids
in arriving at a correct diagnosis, and in studying the progress of the
disease.

[Illustration: FIG. 5.--Fever thermometer.]

Body Temperature.--The body temperature of an animal is taken by inserting
the fever thermometer into the rectum. In large animals a five-inch, and in
small animals a four-inch fever thermometer is used. It should be inserted
full length and left in position from one and one-half to three minutes,
depending on the rapidity with which it registers (Fig. 5).

The average normal body temperatures of domestic animals are as follows:

Horses 100.5\260 F.
Cattle 101.4\260 F.
Sheep 104.0\260 F.
Swine 103.0\260 F.
Dog 101.4\260 F.

There is a wide variation in the body temperatures of domestic
animals. This is especially true of cattle, sheep and hogs. In order to
determine the normal temperature of an animal, it may be necessary to take
two or more readings at different times, and compare them with the body
temperatures of other animals in the herd that are known to be healthy.

Exercise, feeding, rumination, excitement, warm, close stables, exposure to