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 . 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 ey
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 . 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, fastened directly tothe body of the instrument, the other, G, above, by means of rings. The body ofthe instrument B is made of copper (nickel-plated). The lower disk serves for aus-cultation ; the upper disk G is thicker; at its center there is an ebony plate C, intowhich screws the rod A. This disk, by means of the rod A, is used for lower disk L of the phonendoscope has two orifices to receive the auricular tubes,on the ends of which are ebony olive-form rings for the Pig. 62.—Phonendoscope. (Bazzi and Bianchi.) There is a box for this apparatus; in the box is a compartment for two rods withknobs, one of ordinary length say 55 millimeters, the other 80 millimeters; also twopencils, one blue, the other red. Maker, Verdin, Paris. THE ERGOGRAPH. The ergograph (fig. 63) is an apparatus to measure the results of fatigue. Therecord is made by the marker A, which is attached to a little car B, which slidesforward and backward on two parallel horizontal steel rods C. A string is fastenedby a leather loop to the finger pulling the car B in one direction, and a weight W,which is attached to a cord fastened to the car, pulls it iu the opposite the finger is bent, the car B is drawn toward the hand; and when the musclesof the
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