Mr. Edgerton is brought to Lord's Island in the condition I have described, living near enough to be transported on mattresses in carriage and boat. A few hurried questions put to his friends reveal that although his condition is alarming it is by no means necessarily fatal; being one of those in which the habit is of such comparatively short standing, and the constitution still so vigorous, that even at home he might come up again by natural reactions. He is immediately undressed and put to bed, with hot bricks and blankets at the extremities, and the galvanic battery is judiciously administered by placing both feet in contact with a copper plate constituting the negative electrode, while the operator grasps the positive in one hand, and having wetted the fingers of the other, follows the spine downward, exerting gentle pressure with them as he goes. "Judiciously," I say, because there is a vast deal of injudicious use of the battery. In many cases, for instance, a powerful and spasmodic current is used to the absolute injury of the patient, where the greatest benefit might be secured by an even one so light as scarcely to be perceptible. But I can only mention the battery. Its application is by itself a science, and demands a book. The practitioner who treats opium patients needs that science as much as any one interested in whatsoever branch of nervous therapeutics. The battery in the hands of a scientific man is one of our most powerful adjuncts throughout every stage of treatment, both of opium-eating and its sequelae. Paralysis following the habit, and persistent long after its abandonment, I have cured by it when all other means failed. Here, however, we have only room to indicate the weapons in our armory.