Studies in auditory and visual space perception (1901)
Pierce, Arthur Henry, 1867-1914 · New York, Longmans, Green, and Co. · leaf 66
d to degrees and served as a means of orientation for the subject as well as for designating the position at any moment of a sounding body upon the rotating circle. As sounding body a telephone was used here also and this was placed in a cradle-like rest fastened to the rim. By means of this form… … Fig. 3. to the use of a single sounding body, also permitted the easy manipulation of two sounds by a single op- erator.
Directional hearing · Space perception · Optical illusions
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
