(Heizspitzen nach von Frey.)
Description: This device is designed to show the response of the
skin to temperature. It has piping to permit water at diverse
temperatures to enter and leave the enclosure. The device
contains a thermometer, good to 1/5 deg C, which allows you to
determine the temperature of the point. Replaceable ball-shaped
and pointed ends are provided. (Expanded caption Copyright 1998,
Edward J. Haupt)
(Source: None given.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate
(p. 113). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: Component
Stimulus: Temperature
System: Skin sense
Output: Temperature judgment