The utmost concession that he could obtain her consent to was that he should first visit this Dr. Heidenhoff alone, and make some inquiries of and about him.
CHAPTER X.
The next day he called at 79 ——— Street. There was a modest shingle bearing the name "Dr. Gustav Heidenhoff" fastened up on the side of the house, which was in the middle of a brick block. On announcing that he wanted to see the doctor, he was ushered into a waiting-room, whose walls were hung with charts of the brain and nervous system, and presently a tall, scholarly-looking man, with a clean-shaven face, frosty hair, and very genial blue eyes, deep set beneath extremely bushy grey eyebrows, entered and announced himself as Dr. Heidenhoff. Henry, who could not help being very favourably impressed by his appearance, opened the conversation by saying that he wanted to make some inquiries about the Thought-extirpation process in behalf of a friend who was thinking of trying it. The doctor, who spoke English with idiomatic accuracy, though with a slightly German accent, expressed his willingness to give him all possible information, and answered all his questions with great apparent candour, illustrating his explanations by references to the charts which covered the walls of the office. He took him into an inner office and showed his batteries, and explained that the peculiarity of his process consisted, not in any new general laws and facts of physiology which he had discovered, but entirely in peculiarities in his manner of applying his galvanic current, talking much about apodes, cathodes, catelectrotonus and anelectrotonus, resistance and rheostat, reactions, fluctuations, and other terms of galvano-therapeutics. The doctor frankly admitted that he was not in a way of making a great deal of money or reputation by his discovery. It promised too much, and people consequently thought it must be quackery, and as sufficient proof of this he mentioned that he had now been five years engaged in practising the Thought-extirpation process without having attained any considerable celebrity or attracting a great number of patients. But he had a sufficient support in other branches of medical practice, he added, and, so long as he had patients enough for experimentation with the aim of improving the process, he was quite satisfied.
He listened with great interest to Henry's account of Madeline's case. The success of galvanism in obliterating the obnoxious train of recollections in her case would depend, he said, on whether it had been indulged to an extent to bring about a morbid state of the brain fibres concerned. What might be conventionally or morally morbid or objectionable, was not, however, necessarily disease in the material sense, and nothing but experiment could absolutely determine whether the two conditions coincided in any case. At any rate, he positively assured Henry that no harm could ensue to the patient, whether the operation succeeded or not.
"It is a pity, young man," he said, with a flash of enthusiasm, "that you don't come to me twenty years later. Then I could guarantee your friend the complete extirpation of any class of inconvenient recollections she might desire removed, whether they were morbid or healthy; for since the great fact of the physical basis of the intellect has been established, I deem it only a question of time when science shall have so accurately located the various departments of thought and mastered the laws of their processes, that, whether by galvanism or some better process, the mental physician will be able to extract a specific recollection from the memory as readily as a dentist pulls a tooth, and as finally, so far as the prevention of any future twinges in that quarter are concerned. Macbeth's question, 'Canst thou not minister to a mind diseased; pluck from the memory a rooted sorrow; raze out the written troubles of the brain?' was a puzzler to the sixteenth century doctor, but he of the twentieth, yes, perhaps of the nineteenth, will be able to answer it affirmatively."
"Is the process at all painful ?"
"In no degree, my dear sir. Patients have described to me their sensations many times, and their testimony is quite in agreement. When the circuit is closed there is a bubbling, murmurous sound in the ears, a warm sensation where the wires touch the cranium, and a feeling as of a motion through the brain, entering at one point and going out at another. There are also sparks of fire seen under the closed eyelids, an unpleasant taste in the mouth, and a sensation of smell; that is all."
"But the mental sensations ?" said Henry. "I should think they must be very peculiar, the sense of forgetting in spite of one's self, for I suppose the patient's mind is fixed on the very thoughts which the intent of the operation is to extirpate."
"Peculiar? Oh no, not at all peculiar," replied the doctor. "There are abundant analogies for it in our daily experience. From the accounts of patients I infer that it is not different from one's sensations in falling asleep while thinking of something. You know that we find ourselves forgetting preceding links in the train of thought, and in turning back to recall what went before, what came after is meanwhile forgotten, the clue is lost, and we yield to a pleasing bewilderment which is presently itself forgotten in sleep. The next morning we may or may not recall the matter. The only difference is that after the deep sleep which always follows the application of my process we never recall it, that is, if the operation has been successful. It seems to involve no more interference with the continuity of the normal physical and mental functions than does an afternoon's nap."