This author relates having carried out several transplantations with perfect success, a thing that contributed greatly to his renown not only in France, but also in England. He distinguished himself, besides, by the correction of dental irregularities. Lastly, it is to be noted that this author frequently had recourse, as a remedy against toothache, to the stretching of the dental nerve by means of moving and partially raising the tooth (subluxation). A. WESTPHAL. In proof of the great utility of lancing the gums in cases of difficult dentition, A. Westphal reports a case in which the difficult eruption of an upper canine tooth provoked considerable inflammation and protrusion of the eye on the same side as the tooth; these symptoms promptly disappeared, however, as soon as the gum was lanced down to the tooth itself.[476] J. BERTIN also declares himself in favor of this operation; he recommends never to neglect it in cases of difficult dentition, and to make the said incisions deep and wide enough.[477] L. H. RUNGE, a surgeon of Bremen, published, in 1750, a monograph on the diseases of the frontal and maxillary sinuses. He says that in cases of inflammation of Highmore’s antrum, the pus may make its way, corroding the bone, as far as the alveoli, or, sometimes, as far as the orbital cavity; and, _vice versa_, alveolar suppuration can give rise, by diffusion, to abscess of the maxillary sinus. In this latter, tumors of various kinds may form (polypi, cysts, sarcomas, cancers, exostosis), the existence of which is ignored at first, and only becomes manifest tardily. Runge’s father, who was also a surgeon, had occasion to observe, and to treat an important case of disease of the maxillary sinus, with considerable dilatation of the same, not only on the side of the cheek, but also on the side of the palate and of the nasal fossæ. With a strong scalpel he perforated the outer wall of the antrum above the molars (keeping the cheek detached) and enlarged the aperture by making the instrument turn around on its own axis, thus giving exit to a considerable quantity of non-purulent liquid. Detersive and aromatic injections were used for some time. The canine tooth, situated obliquely, having been extracted, its alveolus was found to communicate with the antrum. From this moment, the injections being continued, a rapid improvement was obtained and the patient was so completely cured that no deformity of the face remained. Runge relates a case in which, having extracted a canine tooth, he found a cyst adhering to its root. From this he is induced to believe that in the case related above the disorder was also to be attributed to a large cyst having its origin in the root of the canine. According to him, the ozena always stands in relation to a suppurative affection of the maxillary sinus, and for its treatment one must, therefore, have recourse to Drake’s operations.[478]