If a hollow cough is present, observe motion of abdomen at flank; should this have a double ascending movement or "lift" in expiration, the animal is broken-winded. In galloping, or when suddenly menaced by a blow of a whip, should a grunt or shrill whistling sound be heard in inspiration, the animal should be rejected. If, during rapid motion, a wheezing noise be heard in expiration or inspiration, the horse is unsound.

Before selection is completed the horse should be ridden if for saddle purposes, or driven in harness if for draught.

Every animal will be branded with the letters "U. S." on the left fore shoulder on the day he is received. They are also branded on the left hip with the letter of the battery and the number of the regiment. A complete descriptive list will be made of each animal at the time of purchase, which will accompany him wherever he may be transferred.

Fig. 72.