A Simple Method of Bronchography

Two cc. of the cocaine solution are then injected through one of the nostrils thus : when the tongue is being pulled by the left hand and the patient asked to take long deep breaths, the right hand injects the solution. So long the tongue is pulled, the patient cannot swallow and the solution goes into the trachea. A sudden bout of cough indicates that the solution has entered the trachea. The patient is asked to lie