Man and abnormal man, including a study of children, in connection with bills to establish laboratories under federal and state governments for the study of the criminal, pauper, and defective classes, with bibliographies . ers Grams. Centimeters ot mercury. ot mercury. 100 3 700 15 150 4 a750 al6 200 5 aSOO al7 250 6 a850 al8 300 7 900 19 350 8 950 20 400 9 1,000 21 450 10 1,050 22 500 11 1,100 23 550 12 1,150 24 600 13 1,200 25 650 14 1,250 26 a. Normal pressure. THE CARDIOGRAPH. The heart-beat or cardiac impulse is visible in the fifth left intercostal space,2 inches below the nipple and 1^
Man and abnormal man, including a study of children, in connection with bills to establish laboratories under federal and state governments for the study of the criminal, pauper, and defective classes, with bibliographies . ers Grams. Centimeters ot mercury. ot mercury. 100 3 700 15 150 4 a750 al6 200 5 aSOO al7 250 6 a850 al8 300 7 900 19 350 8 950 20 400 9 1,000 21 450 10 1,050 22 500 11 1,100 23 550 12 1,150 24 600 13 1,200 25 650 14 1,250 26 a. Normal pressure. THE CARDIOGRAPH. The heart-beat or cardiac impulse is visible in the fifth left intercostal space,2 inches below the nipple and 1^ to 1 inch to its sternal side. The cardiographmeasures the cardiac impulse. The cardiograph stethoscope (fig. 61), below, con-sists of a button, B, which by turning increases or decreases the pressure of theknob H, against the walls of the chest. F is a bell-shaped piece of wood formingthe stethoscope. D is a ferrule of brass on which is fastened a rubber tube to beintroduced into the ear for mono-auricular auscultation. An elastic chord, C E,placed around the body holds the apparatus against the chest. By fastening a rubbertube on A, the heart-beats can be transferred to a recording tambour. Maker, Ver-din, Fig. 61.—Cardiograpli stethoscope. (Edgren.) THE I^HONENDOSCOPE. The phonendoscope (fig. 62) serves to render perceptible all normal or abnormalsounds in the human body. The instrument below in the figure gives more inten-sity to the sounds than the ordinary stethoscope. It renders perceptible— 1. The sounds of respiration, circulation, and of the digestive organs. 2. The sounds of the muscles, articulations, and bones. i MAN AND ABNORMAL MAN. 199 3. The sounds of the capillary circulation (dermatophony). 4. The sounds produced by morbid states and those determining the size, position,or change of position of organs. 5. The sounds of the eye and ear. 6. The sounds of the uterine murmur and foetal sounds. The phoneudoscope is composed of two ebony disks, one, L,
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