Mind Reading feats depend upon the degree of Will and Concentration on the part of the Transmitter, and upon the degree of Receptivity and Passivity upon the part of the Receiver. We are taking it for granted that the student will wish to act as a Receiver (or Performer of the feat of Mind Reading) rather than as the Transmitter (or person called upon to have his mind read). And so we shall address him as such, with this understanding. But we shall also give herein full directions for the Transmitter, as well, in order to give the student the methods necessary to act in either capacity, and to also enable him to instruct the Transmitter in his work. The Receiver should understand the duties of the Transmitter, in order that the best possible results be obtained, and the proper harmony and _rapport_ conditions may be established. LESSON IV. DEVELOPMENT EXERCISES. The student should practice privately with the assistance of a few friends, before he ventures before a parlor audience, for by so doing he overcomes the first lack of confidence in himself, and the awkwardness natural to the beginner along any new line of work. By careful and repeated practice he gains confidence in himself by reason of his growing success in his experiments, and besides wears off the "rough edges" of his actions, etc., so that when he finally appears before an audience he will feel perfectly self-possessed and at ease, and thus be able to devote his entire attention to his work, without annoying self-consciousness and awkwardness. Begin the Development Exercises by selecting one or more friends who are in sympathy with you, and who are interested in the subject. Do not have any unsympathetic or uncongenial persons around when you are practicing, for such people tend to distract your attention from your work, and really exert a detrimental effect upon the preliminary work. Select one of your friends as the Transmitter and take the part of the Receiver yourself. Begin your practice by establishing a Psychic Harmony, or Rapport, between yourself and your Transmitter by means of Rhythmic Breathing. Although this feature of the work has been overlooked by many investigators of the subject, still it is a very important feature of the work, and one that is conducive to the production of the very best results along these lines of psychic demonstrations.