168. Excision of the Lachrymal Sac 296 169. Excision of the Lachrymal Sac 296 170. Excision of the Palpebral Portion of the Lachrymal Gland 298 171. Clar’s Lamp 305 172. Gruber’s Aural Speculum 306 173. Angular Spring Forceps 306 174. Examination of the Ear 307 175. Aural Forceps holding Cotton-wool 307 176. Milligan’s Intratympanic Syringe 308 177. Neumann’s Syringe for Subcutaneous Injection 311 178. Burkhardt-Merian’s Aural Instrument 315 179. Crocodile Forceps 324 180. Imray’s Scoop for extracting a Foreign Body 325 181. Aural Probe 332 182. Wilde’s Aural Snare 332 183. Wilde’s Snare being passed round an Aural Polypus 333 184. Wilde’s Snare gripping the Neck of Polypus 334 185. Polypus arising from the Attic Region 334 186. Anatomical Preparation of the Middle Ear 336 187. Paracentesis Knife held in position in the Hand 338 188. Tympanic Membrane showing Incision in Acute Suppuration of the Middle Ear 339 189. Line of Incision in Acute Suppuration of the Attic 339 190. Lines of Incisions in Intratympanic Operations 341 191. Cutting through Intratympanic Adhesions 343 192. Free Edge of Tympanic Membrane cut through 344 193. Sexton’s Instrument 345 194. Method of using Siegle’s Speculum 345 195. Division of Intratympanic Adhesion with Excision of Handle of Malleus 346 196. Schwartze’s Tenotomy Knife 347 197. Lucae’s Probe 350 198. To show Sites of Perforation in Attic Suppuration and Caries of the Ossicles 351 199. Removal of the Malleus by Wilde’s Snare. _First position_ 354 200. Removal of the Malleus by Wilde’s Snare. _Second position_ 354 201. Delstanche’s Ring-knife 354 202. Removal of Malleus by Delstanche’s Ring-knife 355 203. Ludwig’s Incus Hook 356 204. Zeroni’s Incus Hook 356 205. Removal of Incus by Zeroni’s Hook 356