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 . irst feeling of pain occurs, and the poiut The maker of this electrode is Hirschmann, of Berlin. 206 MAN AND ABNORMAL MAN. on the scale is noted as being the measure of pain through the Faradic current. Inthis way Professor Erb has obtained the following table giving average figures forhealthy men, and a basis for comparison in pathological conditions: Table 6.—Electrical n
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 . irst feeling of pain occurs, and the poiut The maker of this electrode is Hirschmann, of Berlin. 206 MAN AND ABNORMAL MAN. on the scale is noted as being the measure of pain through the Faradic current. Inthis way Professor Erb has obtained the following table giving average figures forhealthy men, and a basis for comparison in pathological conditions: Table 6.—Electrical nensihility. Place of applying electrode. Cheeks Neck Upper arm , Forearm Palm of hand Mnger ends Abdomen Leg Upper part of footSole of foot First sensa-tion with aninduction coilat a distanceon the scalefrom— 200-220180-20020O»190175125190170175110 Feeling ofpain with in-duction coilat a distanceon the scalefrom— 120120120115110 90120110110 80 Deflections of theneedle with8 cells and150 resist-ance. 26°22°21-18°15° 2°20°19°10° 5° DYNAMOMETER. The dynamometer (fig. 74) is to measure the strength of grasp. The instrumentis squeezed in the hand while the arm is held out horizontally from the side of the. Fig. 74.—Dynamometer. (Collin.)body. The amount of pressure is read from the scale as indicated by the , Collin, Paris. DYNAMOGRAPH. The instrument in the hand (fig. 75) is a dynamograph. It is used in the labora-tory of Salp6triere, at Paris, to record the diiferent impressions which certain hys-
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