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 . s requiremuch pressure. (Nos. 5 and 10, columns 6 and 9.) Muscle Reading. Some explanation of muscle reading and like phenomena may be suggested byexperiments with the digitalgraph (fig. 31) and the automatograph (fig. 32). Figure 31 represents an instrument for recording the unconscious movements ofthe finger, designed by Dr. Delabarre, of Brown University. The movements o
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 . s requiremuch pressure. (Nos. 5 and 10, columns 6 and 9.) Muscle Reading. Some explanation of muscle reading and like phenomena may be suggested byexperiments with the digitalgraph (fig. 31) and the automatograph (fig. 32). Figure 31 represents an instrument for recording the unconscious movements ofthe finger, designed by Dr. Delabarre, of Brown University. The movements of thefinger are communicated by two chords, A and B, to two rods, V and H, on whichcan be fastened markers to make tracings upon a revolving cylinder. The rods V Psychological Review, March, 189f^. 2 We have ventured to name this instrument. Man and abnormal man. 185 and H are held in a state of tension by rubber bands, which react in such a way asto canse every horizontal or vertical movement of the finger to be recorded. Maker,Verdin, Paris. THE AUTOMATOGRAPH. The automatograph (fig. 32) below, designed by Professor Jastrow of the Uuivarsity of Wisconsin, is an instrument for the study of involuntary movements. It. Fig. 31.—Digitalgraph. (Delabarre.) consists of a wooden frame, B, mounted on three adjustable brass legs, raising it fromthe table a little, and enabling one to make the plate glass E (15 inches square)exactly level. Three glass balls and polished spheres, three-fourths of an inch indiameter, are placed in triangular form upon the plate glass; a very light crystal plateglass (14 inches square) rests upon these balls. This crystal plate is mounted in alight frame. A piece of paper is placed upon the plate to hide the balls; the endsof the fingers are lightly rested upon this paper. The least movement of the hand
Size: 1712px × 1460px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashingtongovtprin
