Nachet-type drum compound microscope
Date1845-1850
Inventory Number1081a
ClassificationMicroscope
Subject
Maker
Camille Sébastien Nachet
1799 - 1881
Cultural Region
Place of Origin
Dimensionsmicroscope: 29.2 × 9.5 × 8.9 cm (11 1/2 × 3 3/4 × 3 1/2 in.)
case: 10.8 × 31.1 × 14 cm (4 1/4 × 12 1/4 × 5 1/2 in.)
case: 10.8 × 31.1 × 14 cm (4 1/4 × 12 1/4 × 5 1/2 in.)
Material
Accessoriesoculars (2): unmarked; objectives (7) : ?, 1(?), 2, 3, 4, 6, 7 in fitted wood box (1081b); mechanical stage (1081c); adjustable bull's eye; concave substage mirror; diaphragm wheel; specimen tray; black-white disk; case.
Description1081a is a well made drum microscope on the French pattern and in the early style of Nachet. It appears little used.
The tube slides in a sleeve and ring attached by a horizontal arm to a round pillar fixed to the back of the stage platform. This platform is seated on top of the drum-shaped base. The coarse focus is by sliding tube; the fine focus is by a vertical screw mechanism under the proper right side of the rectangular stage.
The rectangular stage can be used as-is or a circular mechanical stage (1081c) with x-y motion may be attached. The mechanical stage is stored in the microscope box. stage.
The proper left front corner of the stage has a small sleeve for the insertion of a small bull's eye condenser. The condenser is mounted on an articulated arm.
There is a wheel diaphragm below the stage. The substage mirror is single sided and concave. It is operated by a knurled screw on the side of the drum.
The microscope comes with 2 eyepieces and 7 objectives. Objective threads are 6.6 x 0.35 mm. There is a single nosepiece. The objectives are stored in a little wooden box (1081b) in the case. The box is made of two different colors of wood and is lined with ivory silk. (It is of the same form as the objective box for Nachet microscope 1106a.)
The microscope has a fitted mahogany box padded in purple velvet. It has a compartment with a lift-off lid. The lid's handle is ivory.
Other accessories in the box include a black-white disk made of ivory. There is a little brass-and-glass tray for wet specimens.
A manuscript in the case is written on the back of an anatomical diagram torn out of journal of medical research. It reads: "Small Nachet / Note fine adjustment. / Jeffries Wyman. / Presented by / Alpheus Hyatt." The paper is torn in half.
The tube slides in a sleeve and ring attached by a horizontal arm to a round pillar fixed to the back of the stage platform. This platform is seated on top of the drum-shaped base. The coarse focus is by sliding tube; the fine focus is by a vertical screw mechanism under the proper right side of the rectangular stage.
The rectangular stage can be used as-is or a circular mechanical stage (1081c) with x-y motion may be attached. The mechanical stage is stored in the microscope box. stage.
The proper left front corner of the stage has a small sleeve for the insertion of a small bull's eye condenser. The condenser is mounted on an articulated arm.
There is a wheel diaphragm below the stage. The substage mirror is single sided and concave. It is operated by a knurled screw on the side of the drum.
The microscope comes with 2 eyepieces and 7 objectives. Objective threads are 6.6 x 0.35 mm. There is a single nosepiece. The objectives are stored in a little wooden box (1081b) in the case. The box is made of two different colors of wood and is lined with ivory silk. (It is of the same form as the objective box for Nachet microscope 1106a.)
The microscope has a fitted mahogany box padded in purple velvet. It has a compartment with a lift-off lid. The lid's handle is ivory.
Other accessories in the box include a black-white disk made of ivory. There is a little brass-and-glass tray for wet specimens.
A manuscript in the case is written on the back of an anatomical diagram torn out of journal of medical research. It reads: "Small Nachet / Note fine adjustment. / Jeffries Wyman. / Presented by / Alpheus Hyatt." The paper is torn in half.
Signedunsigned
Inscribedon label below base: 81 / Jeffries Wyman's / small "Nachet"?
on manuscript in case: Small Nachet / Note fine adjustment. / Jeffries Wyman. / Presented by / Alpheus Hyatt.
on manuscript in case: Wyman Microscopes
Curatorial RemarksResembles in particular a Nachet of 1843 shown in <i>Collection Nachet</i>, plate XII, p. 86, item 86 (CHSI Lib. 582).
A signed Nachet instrument (1106a) has the same wooden objective box as CHSI 1081, which is unsigned but also likely by Nachet.
ProvenanceProfessor Jeffries Wyman, Peabody Museum of Archaeology and Ethnology, Harvard University, before 1874; Alpheus Hyatt; gift to Ernst-Lewis Collection of Microscopes (inv. no. 81), Harvard Medical School, October 16, 1900.
Historical AttributesNote from Dr. Lewis: "Presented by Professor Alpheus Hyatt on October 16, 1900--previously the property of Professor Jeffries Wyman," who was the Hersey Professor of Anatomy from 1847 to 1874.
Camille Sébastien Nachet
Date: 1856-1862
Accessories: oculars (2): 2 , 3; objectives (6) in fitted box (1029b): 0, 1, 2, 3, 5, 7, along with substage condenser and oblique Nachet prism condenser; cup diaphram; flat case with parts box (1029c) holding diffuser, camera lucida; stage micrometer; ocular micrometer; wet specimen trough, 4 slides in red leather box (1029d); bull's eye condenser.
Object number: 1029a
Nachet et Fils (I)
Date: 1862-1880
Accessories: 5 objectives (11.5 mm) in leather-covered box (1025b): 1, 3, 5, 5, 7 immersion; 4 oculars: 1, 2, 3, no #; bull's eye on articulated stand (1025d); mahogany parts box (1025c with dissecting instruments: 6 needles, 2 scalpels, scissors, tweezers, 4 slides, box of cover glasses, 2 cup diaphragms, 1 diffuser ; flat case with fine lock, no key.
Object number: 1025a
E. Hartnack & A. Prazmowski
Date: circa 1880
Accessories: objectives in green leather box (5): 2, 4, 6, 7, and unmarked; objectives in brown box (2): 2, 3; oculars (5); 1, 2, 3, 4, 5; polarizing eyepiece and substage apparatus; substage condenser; substage cup diaphragms (4); slider with sleeve to hold substage accessories; large bull's eye condenser with stand; aperture-stop rotating wheel; blue filters (3); flat case; case keys (2).
Object number: 1145a
Nachet et Fils (I)
Date: 1862
Accessories: 6 objectives in box (1157b) with 1 substage condenser; oblique prism condenser; 3 oculars; 1 cup diaphragm, 1 diffuser, ; camera lucida; stage and eyepiece micrometers; liquid trough; 3 dissecting knives; prepared slides in box (1157d); plain slides; cover glasses; bull's eye on jointed arm(1157e); Amici's illuminator prism with stand (1157f); compressorium (1157g); case with parts box (1157c).
Object number: 1157a
Camille Sébastien Nachet
Date: 1855-1865
Accessories: oculars (3); objectives (2 large with 13 mm thread): 4, 8 with screw canisters for the same; objectives (3 with ~6.4 mm threads); nosepieces (3); parts box; flat mahogany case; no key.
Object number: 1108
A. Nachet
Date: 1880-1890
Accessories: 3 Objectives: #7 Nachet with adjustment collar and Society thread in cannister (1107c), small box with # 3 and 6 (11.5 mm threads) and adapter to Society threads (1107b); 2 oculars: no # and 2; bull's eye condenser; pill box with with cover glasses; flat case (1107d) with key.
Object number: 1107a
Hugh Powell
Date: 1841
Accessories: oculars (2); objectives (3): 1/2, 1/8, 1/4 with attachable Lieberkühn; stage slide holder; stage fish plate holder; X-Y mechanical stage; fish plate; prepared slides (2); plain glass slides (2) and cover slips (2); box of cover slips; sponge; cotton bag; folding scalpel; fish plate; mount for stage forceps; fishhook; assorted hardware; case
Object number: 1164
Nachet et Fils (I)
Date: circa 1862
Accessories: 9 objectives and caps 0, 1, 2, 3, 4, 5, 6, 7, 8, (last 3 marked "Nachet à Paris") in their own box; 3 eyepieces 1, 2, 3; large stage clips; dual nosepiece; camera lucida; side illumination prism ; substage cup diaphragm; substage condensers (3); rotating wheel diaphragm; substage mirror on articulated arm; wrench; convertible objectives (3) for a different microscope; flat case.
Object number: 1068a
Constant Vérick
Date: circa 1875
Accessories: oculars (3): 1, 2, 3; objectives (7): 0, 2, 4, 6, 8, 10 water immersion (2); substage stops (3); condenser with aperture diaphragm wheel on dovetail slide; bullseye; revolving double nosepiece; spatula; blue glass filter; case; and key
Object number: 1012
Camille Sébastien Nachet
Date: 1856-1862
Accessories: case; key; oculars (4): 0, 1, 2, 3; objectives in box (1106b); parts box with accessories (1106c); condenser on stand (1106d); Nachet prism (1106e)
Object number: 1106a
Nachet et Fils (I)
Date: circa 1872
Accessories: Box covered by blue paper (1990-2-0012c), marked "mementoes"and containing 4 slides; adapter from Society thread to dual nosepiece (19901-2-0012b) with 11.4 mm threads; 2 objectives : #2 and #7 immersion. No case.
Object number: 1990-2-0012a
R. & J. Beck
Date: 1876
Accessories: Beck patent substage condenser (1122c); apertometer (1122d)
Object number: 1122b