Messieurs Binet and Fere, pupils of the Salpetriere school, describe the action of magnets on cataleptic subjects, as follows: “The patient is seated near a table, on which a magnet has been placed, the left elbow rests on the arm of the chair, the forearm and hand vertically upraised with thumb and index finger extended, while the other fingers remain half bent. On the right side the forearm and hand are stretched on the table, and the magnet is placed under a linen cloth at a distance of about two inches. After a couple of minutes the right index begins to tremble and rise up; on the left side the extended fingers bend down, and the hand remains limp for an instant. The right hand and forearm rise up and assume the primitive position of the left hand, which is now stretched out on the arm of the chair, with the waxen pliability that pertains to the cataleptic state.” An interesting experiment may be tried by throwing a patient into lethargy on one side and catalepsy on the other. To induce what is called hemi-lethargy and hemi-catalepsy is not difficult. First, the lethargic stage is induced, then one eyelid is raised, and that side alone becomes cataleptic, and may be operated on in various interesting ways. The arm on that side, for instance, will remain raised when lifted, while the arm on the other side will fall heavily. Still more interesting is the intellectual condition of the subject. Some great man has remarked that if he wished to know what a person was thinking of, he assumed the exact position and expression of that person, and soon he would begin to feel and think just as the other was thinking and feeling. Look a part and you will soon begin to feel it.