Both temples should be injected as advised at one sitting. The use of the ethyl-chlorid spray makes the operation less fearful to the patient. Subsequent injections should not be done earlier than three weeks or until any discoloration of the skin of the parts has disappeared. The latter is not an unusual occurrence, and is undoubtedly due to the pressure of the injected mass upon the numerous blood vessels found there. The post-operative treatment should be followed as heretofore advocated. DEFORMITIES OF THE NOSE The use of hydrocarbon protheses for the correction of nasal deformities has revolutionized, to a great extent, the rhinoplasty of many centuries. Through their employment many unsatisfactory cutting operations have been entirely displaced, and it is quite right to hold that the introduction of other subcutaneous protheses and like apparatuses of amber, celluloid, caoutchouc, silver, gold, aluminium, ivory, or other nature have been supplanted by this method of operation, when these were needed to correct a partial deformity of the nose. When a total rhinoplasty has to be undertaken the paraffin group of protheses of course cannot be resorted to, owing to a lack of the necessary retentive walls of tissue, except perhaps in such cases where the so-called double flap, or French method, is employed, and there only after the parts have become thoroughly organized. A somewhat complete tabulation of nasal defects has been given heretofore which gives an excellent idea of the extensive use these hydrocarbon injections may be put to. Such nasal deformities as are amenable to this method of correction may be due to either congenital causes, lack of development, direct violence, ulcerative changes following catarrh, syphilis, and tubercular disease. In some cases, however, the defects are purely of a cosmetic nature, and not considered as abnormalities except by the critical eye of the patient. This is true particularly with lobular and supra-alar deficiencies, as well as a slight lack of contour about the anterior line. In some instances the defect may be an acquired one, as in the lateral deviation known as handkerchief bend. A specific and somewhat elaborate classification has been given to the more important and distinctive deformities of the nose, principally to facilitate the proper citation and recording of cases. It may be readily understood that each one of these classifications may be further subdivided, but such subdivision can be only of the degree or extent of the deformity, and must be left to the individual operator and his thoroughness of observation and nicety of recording.