_Technic for General Anesthesia_.--For esophagoscopy and gastroscopy, if general anesthesia is desired, ether may be started by the usual method and continued by dropping upon folded gauze laid over the mouth after the tube is introduced. Endo-tracheal administration of ether is, however, far safer than peroral administration, for it overcomes the danger of respiratory arrest from pressure of the esophagoscope, foreign body, or both, on the trachea. Chloroform should not be used for esophagoscopy or gastroscopy because of its depressant action on the respiratory center. For bronchoscopy, ether or chloroform may be started in the usual way and continued by insufflating through the branch tube of the bronchoscope by means of the apparatus shown in Fig. 13. In case of paralysis of the larynx, even if only monolateral, a general anesthetic if needed should be given by intratracheal insufflation. If the apparatus for this is not available the patient should be tracheotomized. Hence, every adult patient should be examined with a throat mirror before general anesthesia for any purpose, and the necessity becomes doubly imperative before goiter operations. A number of fatalities have occurred from neglect of this precaution. _Anesthetizing a tracheotomized patient_ is free from danger so long as the cannula is kept free from secretion. Ether is dropped on gauze laid over the tracheotomic cannula and the anesthesia watched in the usual manner. If the laryngeal stenosis is not complete, ether-saturated gauze is to be placed over the mouth as well as over the tracheotomy tube.