THE ANESTHETIZER.
This new apparatus has for its object to force the vapor alone of anesthetics into the pharynx through a tube passed into the nose or mouth, or to force the vapor into a cone. I call this apparatus by the newly coined word, "anesthetizer," because such a device requires really a new word to express its mode of action, which is active since the vapor is forced out of the receptacle into the patient by an agent which is outside of the patient, who is himself passive; whereas inhalers are passive and require the exposure to the air of the anesthetic for their proper working, and require also an active coöperation from the patient.
The apparatus consists of a receptacle or bottle of suitable size with a stopper traversed by two tubes, an inlet and an outlet tube, neither of which dips into the liquid anesthetic, but both