Classics in the History of Psychology  An internet resource
developed by Christopher D. Green York University, Toronto,
Ontario ISSN 1492-3713  (Return to index)  The Mental Traits of
Sex  Helen Bradford Thompson (1903) Posted July 2000  in the
bibliography at the end of the volume.  [p. 69] CHAPTER V.
SENSIBILITY to pitch was the only aspect of hearing experimented
upon. No attempt was made to find the threshold for hearing,
because the laboratory was not provided with a sound-proof room.
Three determinations of sensibility to pitch were made, as
follows:  A. The upper limit.  B. The lower limit.  C.
Discriminative sensibility, with the 512 fork as a standard.
The Galton whistle was the instrument used to investigate the
upper limit of sensibility to pitch. The contrast between the
shrill sound of the whistle where the pitch is perfectly
distinct and the sound of the rush of air in the regions above
the possible limit of pitch, was first given to the subject. He
was then told listen carefully to each sti