THE HYPNOTIC EXPERIMENTS OF DOCTOR LUYS.
Reading edition
By R. H. Sherard.
(Illustrated with photographs of Doctor Luys’s patients, taken at the Charity Hospital in Paris.)
The scientific world is greatly interested in the dispute between the believers in the value of hypnotic experiments for purposes of therapeutics and psychology, and those who stigmatize the wonderful results which the former claim to have obtained, as the mere outcome of delusion or fraud.

DOCTOR LUYS.
Ever since the possibility of producing phenomena by the effect of animal magnetism was established, and their medical value asserted, by Frederick Anthony Mesmer, in his theory of mesmeric cures, the most violent hostility has been provoked. Volumes of controversy have been written, the most ardent of the writers being Nees Von Esenbeck, Kieser, Enemoser, Carus and Kluge amongst the Germans, and Deleaze and Foissac among the French.
The report made by the commission appointed by the French Academy of Sciences, the principal members of which were Benjamin Franklin, Lavoisier, Bailly, and Guillotin, pronounced the whole theory of Mesmer charlatanry, asserting that “there is no proof of the existence of the animal magnetic fluid; that this fluid, having no existence, is consequently without utility; and that the violent effects to be observed are due to the manipulations, to the excitement of the imagination, and to that sort of mechanical imitation which leads us to repeat anything which produces an impression on the senses.”
The consensus of opinion among scientists was opposed to the soundness of the theory of hypnotism. Yet such men as Laplace, Agassiz, Hufeland, Sir William Hamilton, and Doctor William Carpenter were always among its stanch supporters, so far as the fundamental facts were concerned.
THE NEW MESMERISM.
The novel development of the subject on sharply defined lines of scientific method owes itself to J. Braid, a surgeon of Manchester, England, who first published the results of his studies in 1840. But it was many years before his studies became widely known and had their due weight. He now shines primus inter pares among those who have shed most light on a perplexing problem. But just as the modern French art school built itself upon the work of the Englishman Constable, so it took the genius and enthusiasm of such investigators as Doctors Charcot and Luys, and of Colonel Rochas d’Aiglun to carry on Braid’s beginnings. These three scientists of recognized worth never proclaimed that the secrets of hypnotism have been solved, or that its possibilities have been more than foreshadowed; they simply asserted that the results already obtained, many being practical in an eminent degree, give encouragement to pursue their investigations.

PLEASING EFFECT OF THE NORTH POLE OF A MAGNET.
It is my purpose to simply set forth that which has come under my personal observation at the Charité Hospital, whose doctor-in-chief, Doctor Luys, is to-day the most enthusiastic believer in experiments on the hypnotic phenomena.
METHODS OF LA CHARITÉ HOSPITAL.
The hypnotic experiments practised by the doctor-in-chief of the Charité Hospital, may be roughly divided into two classes. The first are experiments of a speculative kind, that is to say, such as do not produce practical effects. The second class includes such as often produce such results. These last experiments are mainly the diagnosis of patients by subjects in the hypnotic state, the cure of nervous disorders by the transfer of the same from patients to subjects in the hypnotic state, and the cure of moral and physical maladies by the power of suggestion.
The hypnotic state is divided by Doctor Luys into five phases of intensity: somnambulism, fascination, catalepsy, lethargy, and hypo-lethargy, with various intermediary phases which have not yet been tabulated. The hypnotic state in one or other of its phases is produced in the subject or patient in two ways; by word of command or by the use of the rotative mirror. The rotative mirror is often used where hypnotic influence is first applied to an individual. This mirror much resembles that used by bird catchers for snaring larks. It is composed of four arms, overlaid with bright, polished metal. The arms revolve by clockwork on a pivot, at a tremendous rate of speed. The patient is seated in a high-backed chair with his back to the light, which shines full on the mirror, and is bidden to keep his eyes fixed upon it, and simultaneously to desire to be sent to sleep. The clockwork sets the mirror in rotary motion with a dazzling effect. Sleep is not invariably produced. Many persons are refractory; but, as a rule, in about twenty per cent. of the cases the operation is successful, and after a period varying from five to twenty minutes the patient is seen to drop to sleep.

REPULSIVE EFFECT OF THE SOUTH POLE OF A MAGNET.
“The eyes,” says a writer on the subject, “are first attracted by the rays of light which flash from the wings of the mirror, then little by little, and at the end of a period which varies according to the temperament of the patient, a kind of fascination is produced, the lids get tired and imperceptibly close, the head falls back, and the patient sleeps a sleep which seems natural, but which is really one of the first phases of the hypnotic sleep.” In other cases, that is to say, in the case of patients who are more predisposed, a slight shock is manifested during the state of fascination, due, no doubt, to the sudden contraction of some muscle or system of muscles, and the patient falls into a deep sleep, breathing hard. He is then completely insensible, and apt for the reception of suggestion, having passed quickly through the several stages of the hypnotic sleep, sometimes to the last. In most cases, however, where the doctor has to do with subjects who have often been hypnotized, the simple word of command, without passes or gestures of any kind, suffices. With these he has but to say, “Go to sleep,” and they fall at once into a hypnotic state of greater or lesser profundity. Doctor Luys is, however, the sole possessor of hypnotism I have seen who has this power; and both Charcot and his assistant, Doctor Encausse, as well as Colonel Rachas, are obliged to enforce their commands with certain gestures of the hands and influence of the eyes.
THE DANGER OF HYPNOTISM.
Doctor Luys says: “From the social point of view, these new states of instantaneous loss of consciousness into which hypnotic or merely fascinated subjects may be made to pass deserve to be considered with lively interest. As I shall have to explain to you later, the individual in these novel conditions no longer belongs to himself; he is surrendered, an inert being, to the enterprise of those who surround him. He may be induced to become a homicide, an incendiary or suicide, and all these impulses deposited in his brain during sleep become forces stored up silently, which will then burst forth at a given moment, causing acts like those performed by the really insane. All these are real facts which you may meet with this very day in ordinary life.”
This is, indeed, one of the most dangerous features of hypnotism, that a being, apparently in perfect possession of himself, may be forced to do things by the potency of a command given to him in a trance, a fatal edict which he does not in the least remember, but is constrained mechanically to obey. Doctor Luys and his confrères insist that, unjust as it may appear, the plea of having acted irresponsibly under the effect of a hypnotic suggestion cannot, when the safety of society is involved, be admitted as an excuse any more than drunkenness. This justifies the French law that none but licensed physicians should practise hypnotic experiments.

ESTHER, DOCTOR LUYS’ SUBJECT.
Fortunately for the science of hypnotism the same energy towards useful acts can be stimulated, and it is just this entire obedience of which the professors take advantage for the practice of their healing art. Thus the confirmed drunkard, the man of vicious habits, the lazy child, the kleptomaniac, the suicidal or homicidal maniac can be cured. More wonderful things have been achieved. The patient’s willpower can be so intensified as to enable him to resume mastery of parts of the body which, as the result of such nervous disorders as paralysis, he may have entirely lost. Cases of ague, tic nerveux, neuralgia, and analogous disorders have been cured by repeatedly enjoining the patient, while in the hypnotic state, to conquer his trouble.
HOW CURATIVE PROCESSES ARE PURSUED.
These cures may be divided into two classes, the first effected by auto-suggestion, that is to say, by inspiring the patient with the determination to get the better of his disorder; and, second, those effected by the transfer of the disorder from the patient in his ordinary state to a subject in the hypnotic state.
In the same class may be named numerous cases of persons to whom hypnotism has been administered, just as chloroform is in other cases, as an anæsthetic: as, for instance, the case of a girl who came to the hospital maddened with toothache, and who, once in the hypnotic state, into which she was thrown by the influence of the revolving mirrors, allowed two molar teeth, which till then had caused her the most excruciating agony, to be removed without a sign of discomfort.

ESTHER IN THE LETHARGIC STATE.
The second class of cures are, however, by far the most interesting and the most wonderful. These are the “direct cures,” which are called cures by transfer. This is the method used. One of the subjects attached to Doctor Luys’ clinic—such subjects being persons who have proved themselves very susceptible—is sent to sleep by a word of command from the doctor, and in this state grasps the hands of the patient who desires to be cured. In some cases the hands of the subject are laid upon the patient’s head. The subject is now described as “tapping” the patient of the nervous disorder that affects him. During the process of the transfer an assistant passes a magnetized iron bar over the arms and bodies of both patient and subject. The transfer usually lasts about three minutes. During this period the subject, or the person in the hypnotic state, assumes the individuality of the patient for the nonce, and can answer the doctor’s questions as to the patient’s state and progress. Thus it is the former and not the latter whom the doctor will question how the case is progressing and what ameliorations may be felt, and the subject will answer. In the cases which I saw, the patient in every case described what the subject had said about his state, symptoms, and progress as absolutely true and exact. It is further stated that no injury whatever is wrought on the substitute. While relieving the patient from whom the transfer is made, this vicarious agent is considerably benefited.

ATTRACTION OF THE HAND IN THE LETHARGIC STATE.
The detection of imposture on the part of the subject has invariably resulted in immediate dismissal.
EXTRAORDINARY PHENOMENA.
All the experiments described above are, if genuine (but scientific camps are divided on the question of their genuineness), of practical value. The same thing may be said of another series of test studies, which are also being pursued, though the value is less in degree. Doctor Luys says that the subject in the hypnotic state has an intensely increased visual faculty. Indeed, one of the symptoms of this state is a very noticeable alteration of the appearance of the eye. It is stated by the doctor, and the experiments publicly made may be considered as convincing, that, thanks to this increased visual faculty, the hypnotic subject is able to see in the human face what is entirely hidden to ordinary sight.

THE ACTION OF WATER; THE HANDS ARE CLENCHED AND THE JAW SET; THE SUBJECT CAN NEITHER SWALLOW NOR SPEAK.
For some time past the doctor had established that when a magnet is presented to a hypnotic subject in one of the phases of trance, the effect produced varies, according as the north or south pole, that is to say, the negative or the positive end of the magnet, is offered. The north pole in all cases produces a state of intense delight, expressed by gestures and outcries of pleasure. The subjects in this case declare that they see at the end of the magnet emanations of a beautiful blue light. When the bar is reversed the greatest horror and disgust at once affect the subject. If asked what it is that causes this dismay the subject will answer that it is the sight of a fearful red light playing around the end of the magnet.

EXPRESSION OF PLEASURE CAUSED BY PEPPER PRESENTED TO THE LEFT SIDE.
Investigating further in this direction the doctor has discovered that the same subjects can detect in the human face emanations corresponding to those seen at the ends of the magnetic bar. Thus from the left eye and left ear and left corner of the mouth in persons in a good state of health, blue emanations can be seen by the hypnotized person, according to the declarations of such subjects.
In cases of persons, however, suffering from nervous disorders, or from the results of diseases or accidents, the colors vary. Thus, according to one of the subjects, the red light proceeding from the right eye of a person affected with shortsightedness and fatigue of the organ was largely spotted with violet. Violet is the characteristic color in all cases of great nervous fatigue. Black, green, and multi-colored flames have been described by the subjects as showing from persons suffering with various forms of nervous disorder. A man who had been wounded in the eye with a rapier was characterized, at an interval of three months, by two different subjects, who, according to Doctor Luys, had had no means of inter-communication, as emitting a green light from the injured organ.

EXPRESSION OF ANXIETY CAUSED BY PEPPER PRESENTED TO THE RIGHT SIDE.
If it can be established that certain diseases produce in those suffering from them a variation in the color of the emanations, which are perceptible to the hypnotic subject, the existence and nature of the disease will be certified by the tint.
Amongst the experiments which have been classified as of a speculative kind, and distinct from those of practical worth, none are more interesting than those that involve the presentation to subjects in the hypnotic state, of various substances and medicines contained in hermetically sealed tubes. The manifestations, according as the tube is presented on the right or the left side of the subject, indicate emotions of a diametrically opposite nature. Thus, when a tube containing ordinary red pepper was offered to the left, or, as the doctor calls it, the blue side, of a girl subject in the hypnotic state, symptoms of keen pleasure were discernible, which changed suddenly to an expression of violent disgust when the tube was carried to the red or right side. According to the doctor, the human being is double, and does not feel the same on his red as on his blue side. Thyme presented to one patient produced terrifying hallucinations; in another it called forth an expression of calm delight. Singularly, in the application of thyme there was a physiological effect, also, on the thyroid gland of the throat, the size of the neck being increased from thirty to thirty-three centimetres, or somewhat more than an inch. Morphine in one patient bred fancies of an evidently terrifying nature; in another, an intense drowsiness. The effect of frankincense presented to the left of the neck was an emotion of terror. Some water in a tube, held near the left side of a hypnotic subject’s head, caused a series of spasms resembling those usual to patients suffering from hydrophobia.

EXPRESSION OF PLEASURE CAUSED BY FENNEL PRESENTED TO THE RIGHT EYE.

EXPRESSION OF ANXIETY CAUSED BY HELIOTROPE.

THE EFFECT OF THYME: THE PATIENT CANNOT SPEAK; THE EYES BECOME PROMINENT; THE THYROID GLAND ENLARGES, INCREASING THE CIRCUMFERENCE OF THE NECK AN INCH.
The doctor maintains that in each case the patient was in total ignorance of the contents of the tube. Indeed, in looking over the illustrations of this article, which are direct reproductions from unretouched photographs, one can hardly help believing, with Doctor Luys, that the effect is actual, not simulated. In conclusion, who can tell but that these strange experiments will be looked upon some day as the first lisps of a new science?

EXPRESSION OF FRIGHT PRODUCED BY SULPHATE OF SPARTEINE.

EXPRESSION OF TERROR CAUSED BY FRANKINCENSE.