Nachet small compound microscope
Date1880-1890
Inventory Number1107a
ClassificationMicroscope
Subject
Maker
A. Nachet
1880 - 1890
Maker
Jean Alfred Nachet
1831 - 1908
Maker
John W. Drew
fl. 1880 - 1890
Cultural Region
Place of Origin
Dimensionsmicroscope: 27.3 × 7.9 × 11.4 cm (10 3/4 × 3 1/8 × 4 1/2 in.)
case: 11 × 29.8 × 17 cm (4 5/16 × 11 3/4 × 6 11/16 in.)
case: 11 × 29.8 × 17 cm (4 5/16 × 11 3/4 × 6 11/16 in.)
Material
Accessories3 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.
Description1107 is an example of the small-sized compound microscope that Nachet et Fils advertised in 1872 as the "petite modèle inclinant." For ease of identifying and comparing the components and accessories of this microscope to those of others, it is divided into these separate records:
1107a: the microscope with eyepieces
1107b: box of objectives
1107c: canister with objective, 7
1107d: case
1107e: papers
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The microscope resembles the Nachet medium microscope with the same horseshoe-shaped base with a cupped heel. The base is brass and weighted with lead. The stand consists of a round pillar topped with an inclining joint. This joint is attached to the stage, and the stage carries the upper part of the microscope.
The tube is carried in a sleeve that screws into a ring mount attached to the main pillar of the microscope. This pillar is fixed to the back of the stage. The tube has telescoping sections. The nosepiece is integral to the tube. Coarse focus is by sliding the tube. Fine focus is by a micrometer screw in the top of the pillar.
The square stage has a blackened brass top. There are two, spring-loaded stage clips.
There is a substage wheel diaphragm. The substage mirror is plano-concave and has knurled screws for adjusting its angle. The mirror is fork-mounted on an articulated arm below the stage.
The microscope has 2 oculars (2 and no number). There is a set of 2 objectives and an adaptor for the tube, which has Society threads. These are stored in a small box (1107b). Another objective with a correction collar is in a brass cannister (1107c).
The microscope also has a bull's eye condenser that attaches to the ring mount on the stand, and is for illuminating opaque objects. Another accessory is a pill box with glass cover slips.
The flat mahogany case (1107d) has its key.
1107a: the microscope with eyepieces
1107b: box of objectives
1107c: canister with objective, 7
1107d: case
1107e: papers
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The microscope resembles the Nachet medium microscope with the same horseshoe-shaped base with a cupped heel. The base is brass and weighted with lead. The stand consists of a round pillar topped with an inclining joint. This joint is attached to the stage, and the stage carries the upper part of the microscope.
The tube is carried in a sleeve that screws into a ring mount attached to the main pillar of the microscope. This pillar is fixed to the back of the stage. The tube has telescoping sections. The nosepiece is integral to the tube. Coarse focus is by sliding the tube. Fine focus is by a micrometer screw in the top of the pillar.
The square stage has a blackened brass top. There are two, spring-loaded stage clips.
There is a substage wheel diaphragm. The substage mirror is plano-concave and has knurled screws for adjusting its angle. The mirror is fork-mounted on an articulated arm below the stage.
The microscope has 2 oculars (2 and no number). There is a set of 2 objectives and an adaptor for the tube, which has Society threads. These are stored in a small box (1107b). Another objective with a correction collar is in a brass cannister (1107c).
The microscope also has a bull's eye condenser that attaches to the ring mount on the stand, and is for illuminating opaque objects. Another accessory is a pill box with glass cover slips.
The flat mahogany case (1107d) has its key.
Signedengraved on heel: NACHET / 17, rue St. Séverin, Paris
printed on pill box: JOHN W. DREW / DRUGGIST / Cor. Penn Ave. and Ninth Street / WASHINGTON, D.C.
Inscribedin pencil on pill box: Covers
ProvenanceHarvard Medical School.
Nachet et Fils (I)
Date: 1872-1880
Accessories: Objective #1 with 11.5 mm threads; adapter to Society threads; ocular #3; condensor with iris; dual substage mirror on jointed arm; no case.
Object number: 1306
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
Charles-Louis Chevalier
Date: circa 1840
Accessories: 2 regular objectives; a high power objective; a low power objective (a variable power dissecting lens) with an extension arm for this lens; 2 dissecting lenses; 1 objective with lieberkuhn; objective with polarizer; 2 regular eyepieces; 1 erecting eyepiece; 1 micrometer eyepiece; stage micrometer, stage bull's eye condenser on jointed arm; camera lucida; tweezers; 3 dissecting tools; pillar extension;
compressorium, 2 objective adaptive mounts (one with Chevalier threads, another with Oberhauser threads); 2 adaptors for Chevalier lenses to other microscopes (one adaptor having Society threads); case.
Object number: 1093
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
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
A. Nachet
Date: 1880-1890
Accessories: 1 Objective # 2 with society thread; 1 projection eyepiece; mechanical stage; split aperture epi illuminator; no case, but came with a cover (separately cataloged as 1279b).
Object number: 1279a
A. Nachet
Date: 1880-1890
Accessories: Ocular with crosshair; cap for ocular with analyzer; ocular cap; objective #3 with 11.5 x 045 mm threads; substage polarizer; no case.
Object number: 1206
Ernst Leitz (company)
Date: 1888
Accessories: eyepiece no.1; objectives: 3, 7 with 12.7 mm threads in fitted box (1990-2-0004b); flat case
Object number: 1990-2-0004a
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: 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
Ernst Leitz (company)
Date: 1888
Accessories: objectives (2): 3, 7 with non-RMS (~12.7 mm) threads in fitted box [1175b]; oculars (2): 1, 3; cup diaphragms (2); glass slides (6); case
Object number: 1175a
Nachet et Fils (I)
Date: 1862
Accessories: 3 Oculars: 1, 2, 3; 3 Objectives in fitted box:1, 2, 3; one on tube: also #5, but longer; Camera lucida "Nachet"; 9 Glass slides; Cover glasses; bull's eye on jointed arm; wheel with 2 stops under stage; small blue filter; flat case with key.
Object number: 1069
