So with his stock. He must know, and he does know, something as to their state of health or ill health. With steady observation his knowledge will increase; and with experience he ought to be able to diagnose the common ailments, and not only prescribe for their treatment, but actually treat many of them himself. Unfortunately, many farmers pass health along too lightly and the common disorders too seriously. This is wrong. The man who deals with farm animals should be well acquainted with them, just as the engineer is acquainted with his engine. If an engine goes wrong the engineer endeavors to ascertain the trouble. If it is beyond his experience and knowledge he turns the problem over to an expert. It should be so with the stock raiser. So familiar should the owner be with his animals in case of trouble he ought to know of some helpful remedy or to know that the trouble is more serious than ordinary, in which case the veterinarian should be called. All of this means that the art of observing the simple functions should be acquired at the earliest possible moment--where to find the pulse of horse or cow, how many heart beats in a minute, how many respirations a minute, the color of the healthy nostril, the use of the thermometer and where to place it to get the information, the character of the eye, the nature of the coat, the passage of dung and water, how the animal swallows, the attitude when standing, the habit of lying down and getting up--all of these should be as familiar to the true stockman as the simplest details of tillage or of planting or of harvesting. [Illustration: COMMON SHEEP SCAB Here is an advanced case and shows how serious the trouble may become. A very small itch mite is the cause. The mites live and multiply under the scurf and scab of the skin.] Moreover, the stockman should be a judge of external characters, whether natural or temporary. He should have a knowledge of animal conformation. If to know a good plow is desirable, then to know a good pastern or foot is desirable. If the art of selecting wheat is a worthy acquisition, then the art of comparing hocks of different horses is a worthy accomplishment also. If experience tells the grower that his corn or potatoes or cotton is strong, vigorous and healthy or just the reverse, observation and experience ought also to tell him when his stock are in good health or when they lack thrift or are sick and need treatment. LEARN TO RECOGNIZE ANIMAL DISEASES