_Symptoms._ In the course of one of the above named affections there comes on suddenly extreme dyspnœa, with stertorous breathing, a suffocative cough, and intense anxiety. The stridor is first with inspiration and later with expiration as well. The eyes are bloodshot and protruding, the pulse small and rapid, the movements uncertain, and the skin moist with sweat. There is manifest swelling of the throat and manipulation leaves the imprint of the finger. When symptomatic of some distant affection it is at once slower in its result and more persistent. The local pasty swelling and the absence of any false membrane suffice usually to distinguish it from croup which it so closely resembles in the suddenness of its onset, and the violence of its manifestations. The less urgent cases may be treated by application of cold water or ice to the throat, and the injection of solutions of chloride of iron or alum into the fauces. Or the throat may be painted with tincture of iodine and rubbed with the palm to favor distribution and absorption of the exudate. In dogs the mouth may be opened widely and the dropsical membrane pricked at intervals to drain off the liquid. In the most acute cases the prompt adoption of tracheotomy is the only means of saving life. LARYNGEAL HYPERÆSTHESIA. CONVULSIVE COUGH. Convulsive cough with visible lesions—without. Excitants, cold air, or water, rough or dusty food, irritant agents inhaled or swallowed. Treatment, hygienic, nerve sedative, expectorant, tonics, Muriate of ammonia, Sulphur dioxide, silver solution, ferric chloride, alum, derivatives, elimination, aromatic, dietetic. The chronic or paroxysmal cough may often be traced to the presence of tumor, ulcer, local inflammation, or parasite, but in some instances no local trouble is recognizable, the general health remains good, and yet the throat is abnormally sensitive and a cough or fit of coughing may be roused by passing into the cold air from a warm stable, by cold water in drinking, by inhaling irritant gas, by the passage of rough or fibrous food, or by handling the larnyx. There is undoubtedly a hyperæsthesia of the larnyx and the horse and dog as being more exposed to severe demands on the physical and nervous systems are especially liable to suffer.