(Olfaktometer nach Zwaardemaker.)
Description: Zwaardemaker was, at that time, the expert in
olfactory experimentation. This is a standard, if not very
complex, device for doing olfactory thresholds. The apparatus
consists of a short pipe, constructed from odorless kaolin (a
major component of porcelain), which can be placed more or less
deeply in the nasal cavity. To prevent outside odors, the scent-
carrying capsules are held within a metal cylinder. The variation
of the smell intensity occurs through offset of the metal pipe.
(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. 119). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: Measurement apparatus
Stimulus: Fluid
System: Olfactory
Output: Recognition, strength