This term is used to designate a transitory state or condition, which may either terminate in recovery, or in severe inflammatory disease of some important organ or affection, of which the chill is the first stage. When a chill is present it is impossible to say, with certainty, whether or what further derangement will ensue. But it is quite certain an abnormal condition is already present, with the probability that it will develop some disease or inflammation, of which we now have the first or forming stage. Usually the length and violence of the chill is in proportion to the importance of the organ attacked, and the character of the morbid influence. The _direct_ causes of a chill are: exposing the animal to cold draughts; allowing him to drink freely of cold water, in very hot or during very cold weather; exhausting him with labor and then placing him in a damp stable; washing the legs with cold water, or riding him (while in a state of perspiration), into a stream of cold water. SYMPTOMS.—The symptoms which are usually observed before the chili proper sets in, are: dullness or want of spirit on entering a stable after a journey; hanging of the head; standing fixedly in one place; taking little or no notice when spoken to; smelling at the food; picking amongst it for a short time and then leaving it altogether. In addition to these, the eye is dull and countenance dejected; the animal grinds his teeth and breathes quicker than usual, while the pulse is rarely or never disturbed at the commencement. Soon the coat will begin to prick and the animal will begin to tremble with considerable violence; his breathing will become more hurried, attended with a harsh blowing sound in the nasal passages; the pulse still retaining its usual slow beat. Sometimes the breathing becomes quick, hurried and loud “panting.” This condition may continue half an hour, or even two hours or more, when the patient will become more quiet, the breathing softer, more tranquil, the skin and extremities warmer, and the pulse rises to fifty or even sixty beats to the minute. From this condition the attack may, under judicious treatment, pass off, and speedy recovery ensue; or, it may pass into a Catarrhal Fever, or Pneumonia, or Bronchitis, or Lymphitis, or Laminitis, or Inflammation of the bowels, or what is quite common, a bad, obstinate cough. TREATMENT.—With as little delay as may be, the patient should be comfortably housed and blanketed, and fifteen drops of A.A., should be given. If not better in half an hour, repeat it, and again at intervals of half an hour, until the trembling and respiration have been relieved and the chill has passed off. Then the animal may be safely left under the influence of the same medicine, to be repeated every two or three hours, so long as circumstances seem to require it.