Muscle-Reading is performed in the following manner: Let us take, for example, the reading of the figures on a bank-note. The subject gazes intently at the figures on a note, and fixes them in his mind. The muscle-reader, blindfolded or not, takes a crayon in his right hand, and lightly clasps the hand or wrist of the subject with his left. He then writes on a blackboard the correct figures on the note. This is one of the most difficult feats in the repertoire of the muscle-reader, and was excelled in by Bishop and Stuart Cumberland. Charles Gatchell, an authority on the subject, says that the above named men were the only muscle-readers who have ever accomplished the feat. Geometrical designs can also be reproduced on a blackboard. The finding of objects hidden in an adjoining room, or upon the person of a spectator in a public hall, or at a distance, are also accomplished by skillful muscle readers, either by clasping the hand of the subject, or one end of a short wire held by him. Says Gatchell, in the "_Forum_" for April, 1891: "Success in muscle-reading depends upon the powers of the principal and upon the susceptibility of the subject. The latter must be capable of mental concentration; he must exert no muscular self-control; he must obey his every impulse. Under these conditions, the phenomena are in accordance with known laws of physiology. On the part of the principal, muscle-reading consists of an acute perception of the slight action of another's muscles. On the part of the subject, it involves a nervous impulse, accompanied by muscular action. The mind of the subject is in a state of tension or expectancy. A sudden release from this state excites, momentarily, an increased activity in the cells of the cerebral cortex. Since the ideational centres, as is usually held, correspond to the motor centres, the nervous action causes a motor impulse to be transmitted to the muscles. * * In making his way to the location of a hidden object, the subject usually does not lead the muscle-reader, but the muscle-reader leads the subject. That is to say, so long as the muscle-reader moves in the right direction, the subject gives no indication, but passively moves with him. The muscle-reader perceives nothing unusual. But, the subject's mind being intently fixed on a certain course, the instant that the muscle-reader deviates from that course there is a slight, involuntary tremor, or muscular thrill, on the part of the subject, due to the sudden interruption of his previous state of mental tension. The muscle-reader, almost unconsciously, takes note of the delicate signal, and alters his course to the proper one, again leading his willing subject. In a word, he follows the line of the least resistance. In other cases the conditions are reversed; the subject unwittingly leads the principal.