. Diseases of the ear : a text-book for practitioners and students of medicine. trum and the othermastoid cells. By dividing the posterior and superior wall ofthe fibrous canal in such a manner that the soft parts may becrowded into the bony cavity thus thrown into the canal, theoperator succeeds in placing that series of pneumatic spaceswhich are in communication with the tympanic cavity underdirect ocular inspection from the meatus, so that any subse-quent caries can easily be dealt with without recourse to aserious operation. Combined with the operation proposedby Stacke, already described,
. Diseases of the ear : a text-book for practitioners and students of medicine. trum and the othermastoid cells. By dividing the posterior and superior wall ofthe fibrous canal in such a manner that the soft parts may becrowded into the bony cavity thus thrown into the canal, theoperator succeeds in placing that series of pneumatic spaceswhich are in communication with the tympanic cavity underdirect ocular inspection from the meatus, so that any subse-quent caries can easily be dealt with without recourse to aserious operation. Combined with the operation proposedby Stacke, already described, Bergmanns method forms avaluable means of securing free drainage, and of removingall carious tissue from the deeper portions of the ear. It isalso valuable in those cases where the lateral sinus lies so farforward as to prevent entering the mastoid antrum at the siteof election. The technique of dressing the wound is the same as thatdescribed under the consideration of Stackes operation, andmust vary slightly with each individual case according to theindications. PLATE VII!. Exploration of the Tympanic Roof, Lateral Sinus, and Cerebellum. CHAPTER XXIX. THE SURGICAL TREATMENT OF THE INTRACRANIALCOMPLICATIONS OF AURAL SUPPURATION. When it has been decided that the intracranial structuresare involved either subsequently to an operation on the mas-toid or when the case first comes under observation, it is wiseto institute surgical measures for the relief of the has been argued that, from the great mortality followingsuch measures, thev are not justifiable ; but when we remem-ber that the only chance of relief lies in surgical interference,it seems wrong to refuse the patient this opportunity. In purulent meningitis surgical interference offers lesspromise than in epidural or cerebral abscess, or in sinusthrombosis, when prompt action on the part of the surgeonoften saves life. It is onl}^ when unmistakable symptoms ofextensive meningitis occur that we should hesitate
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