For the Relief of Lachrymal Obstruction, 290--_Dilatation of the Canaliculus_, 290; _Slitting the Canaliculus_, 291; _Syringing the Lachrymal Duct_, 292; _Probing the Lachrymal Duct_, 292; _the Insertion of Styles_, 293. For Obliteration of the Canals, 294; _Obliteration of the Canaliculi_, 294; _Excision of the Lachrymal Sac_, 294. Opening a Lachrymal Abscess, 297. Operations upon the Lachrymal Gland--_Removal of the Palpebral Portion_, 298; _Removal of the Orbital Portion_, 299. Operations upon the Orbit--Exploration of the Orbit (Krönlein’s Method), 299; Evisceration of the Orbit, 301; Opening an Orbital Abscess, 301 290-301 SECTION III OPERATIONS UPON THE EAR By HUNTER F. TOD, M.A., M.D. (Cantab.), F.R.C.S. (Eng.) Aural Surgeon to the London Hospital. CHAPTER I EXAMINATION OF THE EAR: GENERAL CONSIDERATIONS WITH REGARD TO OPERATIONS Examination of the Ear, 305--_Sources of Illumination_, 305; _Technique of Examination_, 306; _Method of cleansing the Ear_, 307. General Considerations with regard to Operations--_Preliminary Surgical Toilet_, 309; _Anæsthesia_, 310. Position of Patient and Surgeon, 313 305-313 CHAPTER II OPERATIONS UPON THE EXTERNAL AUDITORY CANAL Operations for Furunculosis, 314. Removal of Exostoses from the External Meatus, 316. Removal of Foreign Bodies--_by Syringing_, 322; _by Instruments_, 323; _by Post-aural Incision_, 326; _by Operation upon the Mastoid_, 327. Operations for Stenosis of the External Meatus, 328. Operations for Atresia, 330; for Aural Polypus, 331 314-334 CHAPTER III OPERATIONS UPON THE TYMPANIC MEMBRANE AND WITHIN THE TYMPANIC CAVITY Surgical Anatomy of the Tympanum, 335. Paracentesis, 336. Artificial Perforation of the Tympanic Membrane, 340. Division of the Anterior Ligament, 341. Division of the Posterior Fold, 341. Intratympanic Operations, 342; _Division of Adhesions_, 342; _Tenotomy of the Tensor Tympani_, 346; _Tenotomy of the Stapedius_, 347. Removal of Granulations from the Tympanic Cavity, 348. Operations upon the Ossicles--_Direct Mobilization_, 349; _Removal of the Ossicles_, 351 335-363 CHAPTER IV OPERATIONS UPON THE EUSTACHIAN TUBE Catheterization, 364. Passing of the Eustachian Bougie, 369. Washing out the Tympanic Cavity through the Eustachian Tube, 372 364-372 CHAPTER V OPERATIONS UPON THE MASTOID PROCESS: WILDE’S INCISION AND SCHWARTZE’S OPERATION Surgical Anatomy, 373. History of the Mastoid Operation, 375. Wilde’s Incision, 377. Schwartze’s Operation, 378. Treatment of Special Conditions--_in an Infant_, 389; _Subperiosteal Abscess_, 389; _Bezold’s Mastoid Abscess_, 389; _Necrosis_, 390; _Osteomyelitis_, 390 373-390 CHAPTER VI THE COMPLETE MASTOID OPERATION