Dr. Donaldson & Co's. (Improved) Pocket Vaporizing Inhaler. For Applying Medicines in the Treatment of Catarrh, Asthma, Bronchitis, Headache, Diseases of the Lungs and Air Passages, and the Effectual Vaporization of Any Medicine.

Includes hand-held cylindrical glass vaporizer with two internal glass solution vials, each with a fenestrated rubber stopper. Double-layer glass tubes extend through each stopper and through corks at either end of cylinder: the tube at one end is plain and straight, the tube at the opposite end terminates in a knob shape (the latter is the mouthpiece). Includes rectangular cardboard box with printed label on lid, and original instructions for charging, which involves adding hydrochloric acid and ammonia to the opposite vials and then inserting the medicine to be inhaled.