SECTION III.. Respiratory Apparatus.

RESPIRATORY APPARATUS.

I. EXAMINATION OF THE RESPIRATORY APPARATUS 311

II. NASAL CAVITIES 319 Simple coryza 319 Gangrenous coryza 320 Tumours of the nasal cavities 325 Purulent collections in the nasal sinuses. Nasal gleet 326 Purulent collections in the frontal sinus 327 Purulent collections in the maxillary sinus 329 Œstrus larvæ in the facial sinuses of sheep 330

III. LARYNX, TRACHEA AND BRONCHI 333 Laryngitis 333 Acute laryngitis 333 Pseudo-membranous laryngitis 333 Tumours of the larynx 335 Bronchitis 336 Simple acute bronchitis 337 Chronic bronchitis 337 Pseudo-membranous bronchitis 339 Verminous bronchitis in sheep and cattle (Husk, hoose, etc.) 340

IV. LUNGS AND PLEURÆ 343 Pulmonary congestion 343 Simple pneumonia 343 Pneumonia due to foreign bodies—Mechanical pneumonia 347 Pneumonia due to the migration of foreign bodies from the reticulum 348 Pneumomycosis due to Aspergilli 350 Gangrenous broncho-pneumonia due to foreign bodies 351 Infectious broncho-pneumonia 354 Broncho-pneumonia of sucking calves 356 Sclero-caseous broncho-pneumonia of sheep 358 Pulmonary emphysema 359 Diseases of the pleura 361 Acute pleurisy 361 Chronic pleurisy 362 Pneumo-thorax 362 Hydro-pneumo-thorax and pyo-pneumo-thorax 366

V. DISEASES OF STRUCTURES ENCLOSED WITHIN THE MEDIASTINUM 368 Tumours of the Mediastinum 369