Moreover, it is a matter of no small moment that other members of the family--who are not unlikely to be predisposed to the same malady--will thus secure a series of profitable exercises. I must add my conviction, that by no other variety of training can the efforts be so accurately directed to the muscles whose weakness permits the distortion of chest which is often the exciting cause of the malady. With a good-sized room, and open windows, the air may be pure, while the exercise will prove the occasion of a thorough ventilation of the house. I am indebted to Friedrich Robert Nitzsche of Dresden for the drawings of the accompanying cuts. His works are invaluable. [Illustration: Fig. 1.] Fig. 1. Assistant, standing behind the patient, grasps his hands. Patient draws up the hands, as shown in the dotted lines, assistant resisting. Patient forces his hands back again to the first position, assistant resisting. Repeat five times. In this, as in the other exercises advised, _the resistance should be adapted to the patient's strength_. [Illustration: Fig. 2.] Fig. 2. Assistant, standing behind the patient, who is seated, grasps his uplifted hands. Patient draws down the hands, as shown by the dotted lines, assistant resisting. Patient forces the hands back to the first position, assistant resisting. Repeat three times. [Illustration: Fig. 3.] Fig. 3 shows an improvement on Fig. 2 for those cases in which, either from the strength of the patient or the weakness of the assistant, it might prove more agreeable to employ two assistants. [Illustration: Fig. 4.] [Illustration: Fig. 5.] Figs. 4 and 5 represent an exercise which hardly needs description. The patient should exert the positive force in both directions, the assistants resisting. [Illustration: Fig. 6.] [Illustration: Fig. 7.] Fig. 6 or 7 may be used next in order. [Illustration: Fig. 8] [Illustration: Fig. 9] Fig. 8 shows an exercise valuable in the treatment of drooping shoulders. When the patient has raised his arms, as in the dotted lines, he may bring them back to the horizontal in front, without the interference of the assistant. Fig. 9 illustrates an exercise which may be used twenty or thirty times, if managed with gentleness. I cannot here undertake to say how often these exercises should be employed, nor in what cases; they are given merely as suggestive. A complete series of "Mutual Help Exercises," adapted to the treatment of the consumptive, includes a large number, many of which are not only valuable, but cannot fail to deeply interest all concerned. If to the Mutual Help Exercises it is desired to add those in which the health-seeker can work alone, I would suggest the new exercises with the wooden dumbbell, wand, and club, and the one hundred and seven exercises with Schreber's Pangymnastikon.