General stimulants, like alcohol, coffee, tea, acetate of ammonia, and suitable hygienic conditions suggest themselves. Tepid drinks can be given freely. Nourishing and easily digested food, and a ration of milk complete the treatment. Emollient and antiseptic fumigations are also of value, as in ordinary sore throat or laryngitis, for they favour the separation and discharge of the false membranes. TUMOURS OF THE LARYNX. Acute forms of pseudo-membranous laryngitis, or even tuberculous laryngitis, are not the only diseases which affect the larynx. It is by no means exceptional to discover intra-laryngeal tumours, mucous polypi, tuberculomes, and growths due to actinomyces, etc. The presence of these tumours is indicated by difficulty in respiration, fits of coughing, and threatened suffocation, accompanied by discharges of varying character. When the tumour is largely sessile, the respiration may simply be snoring or whistling, without any suggestion of suffocation; but if, on the other hand, it is pedunculated, displacement of the polypus produced by the currents of air during inspiration and expiration causes spasm of the glottis, fits of coughing and threatened suffocation. =The diagnosis= is not always easy, though examination of the nasal cavities, the sinuses, trachea and chest gives negative results. Auscultation of the larynx may suggest the existence of the lesion, but an exact diagnosis can only be attained by digital examination of the larynx through the pharynx. [Illustration: $1] =The prognosis= of these tumours is grave, because death from asphyxia may occur during an attack of coughing or as a consequence of the fits of suffocation. =Treatment.= As it is usually extremely difficult, if not impossible, to discover the exact nature of the tumour, medical treatment, except for instance in the case of actinomycosis, is of very uncertain value. Surgical treatment alone suggests itself. Before attempting an operation tracheotomy should be performed and a metal canula inserted. The animal having been cast, and the upper laryngeal region anæsthetised by means of cocaine, a vertical incision is made in the median line below the larynx, passing through the skin, the vertical junction between the neck muscles and the three first circles of the trachea, and access is thus obtained to the larynx and subglottal region. The operation should only be performed in exceptional cases, such as that of a valuable stud animal. Provided that the new growth has a well-developed pedicle it can be removed through the mouth by the use of an _écraseur_ or simply by tearing out. BRONCHITIS. Diseases of the bronchi in bovine animals reveal very different characters, according to the nature of the primary cause, for which reason cases occur of simple acute bronchitis, verminous bronchitis, simple chronic bronchitis, pseudo-membranous bronchitis, tuberculous bronchitis, etc.