(Hilfsapparat.)
Description: At this time (1903), photographic illustration of
biological specimens was still rare and many illustrations were
still made as line drawings. This stand holds a weak magnifying
lens. The apparatus comes with lenses from +10 diopters (2.5x) to
-20 diopters (-5x). It appears that this apparatus was used to
view the specimen while the drawing was being made. (Expanded
caption Copyright 1998, Edward J. Haupt)
(Source: Kaiser, Zeitschrift für Mikroskopie und
mikroskopische Technik, XIII,)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate
(p. 131). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: Component
Stimulus:
System:
Output: