Upon retiring at night, remove all constricting bands about the waist, lie upon the back, and rest the hands upon the abdomen. Direct the breath so as to raise the hands. Fill the lungs full as possible, and hold the breath for several seconds. Exhale, letting the hands fall with the outgoing breath. Take two or three ordinary breaths, then repeat, drawing in the breath slowly through the nostrils, lock in the breath for a few seconds, and exhale slowly as before. A better position of the body would probably be secured by folding a comfortable, spreading it upon the floor, and lying flat upon the back. Heavy pillows and yielding bed-springs crook the body, and often prevent the best results. The abdominal movement, in breathing, is not quite so apparent when standing or sitting, but if the exercise be taken as frequently as possible, with the mind directed to the freest diaphragmatic movement, the habit of full, deep, abdominal breathing, with its numerous attendant advantages, will soon become established. =Chest Muscles.=--Not only should the lung cavity be enlarged by breathing exercises, and by any physical exercise that stimulates respiration, as steady and protracted running, but the front chest should be well covered by the pectoral muscles. With the arms at right angles to the body, and with head thrown back, so as to face the ceiling, raise and lower the dumb-bells from twelve to eighteen inches. As strength increases, increase the weight of the bells and the number of lifts. Swinging with the hands upon the horizontal bar is another good exercise. The “dips” exercise, elsewhere referred to, is also good for the pectorals, but must not be attempted until after strength has been gained by lighter exercises. The relation of the biceps and triceps to the pectoral muscles is so close that any exercise for the former will be helpful to the latter. =Respiratory Exercise, No. 1.=--With arms at sides and elbows stiff, raise the hands as high as possible above the head. Rise upon the toes at the same time, so as to give the body the longest possible upward reach. Inhale slowly through the nostrils while the arms ascend, and hold the breath a moment or two, then exhale, lower the arms, and rest back upon the heels. Repeat ten to twenty times. It is needless to say that in the in-door exercises, and especially in the breathing exercises and those which stimulate respiration, the room should be well ventilated. The head and neck should be held erect, except where a different position is required. =Respiratory Exercise, No. 2.=--Lie flat upon the floor, face downward, hands folded upon the back. Inflate the lungs and lift the head and shoulders as high as possible, giving out the breath slowly. Repeat several times, and as strength increases, oftener.