Zeiss stand ESA laboratory compound microscope
Date: circa 1928
Inventory Number: 2000-1-0038
Classification: Microscope
Subject:
Maker: Carl Zeiss Jena (1904 - 1948)
Maker: Carl Zeiss (company timeline) (founded 1846)
User: Botanical Museum (founded 1858)
Cultural Region:
Place of Origin:
Jena,
Dimensions:
unassembled microscope: 30 × 13.5 × 21 cm (11 13/16 × 5 5/16 × 8 1/4 in.)
case: 42 × 22.7 × 23.2 cm (16 9/16 × 8 15/16 × 9 1/8 in.)
Accessories: standing case; key
Bibliography:
Six Popular Zeiss Microscopes
DescriptionThis is a Zeiss laboratory compound monocular microscope with a stand ESA design. It is an early model having a sleek C-shaped arm whose base embraces the upright of the V-shaped claw foot (rather than having the upright be a fork holding the arm as in the 1934 catalogue). Also note the different location of the coarse and fine focus knobs; the coarse being lower and the fine being higher on this instrument.
The microscope has a non-extensible tube with a revolving quadruple, nickel nosepiece. Coarse focus is by rack and pinion. Fine focus is by the Meyer geared slow-motion device operated by a two knobs, one having a divided drum. One interval on the drum corresponds to .002 mm of vertical motion of the optical assembly.
The stage is round and of a simplified mechanical form. Below the stage is frame that carries all the illuminating apparatus and is adjustable by rack and pinion. It has a fixed "Aplanat" 1.4 condenser with an iris diaphragm. Below the condenser is a swing-out ring to take stops, colored screens, etc. There is no substage mirror.
No objectives or oculars are present.
The microscope comes equipped with a wooden case and key. The box has the Zeiss dovetailing. It is marked in ink on the box top and door, "Bot. Mus."
The microscope has a non-extensible tube with a revolving quadruple, nickel nosepiece. Coarse focus is by rack and pinion. Fine focus is by the Meyer geared slow-motion device operated by a two knobs, one having a divided drum. One interval on the drum corresponds to .002 mm of vertical motion of the optical assembly.
The stage is round and of a simplified mechanical form. Below the stage is frame that carries all the illuminating apparatus and is adjustable by rack and pinion. It has a fixed "Aplanat" 1.4 condenser with an iris diaphragm. Below the condenser is a swing-out ring to take stops, colored screens, etc. There is no substage mirror.
No objectives or oculars are present.
The microscope comes equipped with a wooden case and key. The box has the Zeiss dovetailing. It is marked in ink on the box top and door, "Bot. Mus."
Signedon tube and limb: Carl Zeiss / Jena [in achromat trademark]
on limb: Germany
on limb: Germany
Inscribedon tube: Nr. 176176
in ink twice on case: Bot. Mus.
in ink twice on case: Bot. Mus.
Historical AttributesThe Zeiss catalog of 1934 recommended this type of microscope for use by "medical men, zoologists, botanists, and workers in similar branches of science."
This instrument was used in the Botanical Museum at Harvard.
This instrument was used in the Botanical Museum at Harvard.
Curatorial RemarksSee Zeiss literature "Micro N. Y. 128," Lib. 1131, p. 2.
Primary SourcesCarl Zeiss, Six Popular Zeiss Microscopes (New York: Carl Zeiss, Inc., n.d.), 2.
Carl Zeiss Jena, Zeiss Microscopes and Accessories (Jena: Carl Zeiss Jena, 1934), 19, 22.
Carl Zeiss Jena, Zeiss Microscopes and Accessories (Jena: Carl Zeiss Jena, 1934), 19, 22.
ProvenanceBotanical Museum, Harvard University; transfer to CHSI, c. 1930.