Hartnack medium compound microscope
Datecirca 1850
Inventory Number1141a
ClassificationMicroscope
Subject
Maker
Edmund Hartnack
1826 - 1891
Maker
G. Oberhaeuser et E. Hartnack
1857 - 1860
Cultural Region
Place of Origin
Dimensionsmicroscope: 29 × 8.2 × 11.1 cm (11 7/16 × 3 1/4 × 4 3/8 in.)
case: 12.5 × 32.8 × 21 cm (4 15/16 × 12 15/16 × 8 1/4 in.)
case: 12.5 × 32.8 × 21 cm (4 15/16 × 12 15/16 × 8 1/4 in.)
Material
Accessoriesoculars (4); low power objective; condenser; aperture plate including dark field; stage clips (2); flat case
DescriptionThis is a Hartnack medium compound microscope. It has a heavy horseshoe-shaped base, a flange arm with a circular post, and a monocular body with a sliding eyepiece tube for the coarse focus. The fine adjustment is by a knob located on top of the post.
There is square stage with a circular black glass insert. Located beneath the stage is a thick circular plate with a slide and tube for disk diaphragms, and a plane-concave mirror on an adjustable arm.
The entire stand can be rotated about the center of the stage. The purpose was evidently to allow oblique illumination from different azimuths, not specimen rotation.
This instrument is accompanied by a flat wooden case for storage.
There is square stage with a circular black glass insert. Located beneath the stage is a thick circular plate with a slide and tube for disk diaphragms, and a plane-concave mirror on an adjustable arm.
The entire stand can be rotated about the center of the stage. The purpose was evidently to allow oblique illumination from different azimuths, not specimen rotation.
This instrument is accompanied by a flat wooden case for storage.
Signedon side of arm: E. Hartnack / Place Dauphine 21 Paris
ProvenanceErnst-Lewis Collection, Harvard Medical School
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
E. Hartnack et Cie
Date: 1880
Accessories: objectives (3) in fitted box no. 21106: 2, 9, low power convertible without number; oculars(2): 2, 3; adapters (2); brush; glassrod; needle; round tin box; key; flat case
Object number: 1142
E. Hartnack & A. Prazmowski
Date: 1874-1881
Accessories: objectives in box (3): 7, 9, convertible 4; oculars (4): 2, 3, 4, 5; bull's eye lens; cup diaphragms (3); dissecting needles (3); case; key.
Object number: 1195
E. Hartnack et Cie
Date: circa 1880
Accessories: oculars (3): 2, 3, 4; objectives (5): 2, 4, 7, 8, 10; diaphragms (3); accessories box; bulls eye lens on foot; blue glass filter; magnification table; price list; dissecting needles (2) in cardboard tube; flat case
Object number: 1340
E. Hartnack & A. Prazmowski
Date: dated 1880
Accessories: objectives (4); fitted box # 23050; oculars (3): 2, 4, 6; bull's eye; triple nosepiece: Abbe condensor; adapter to Hartnack objectives; adapter to unknown thread; flat case numbered 20223.
Object number: 1114
E. Hartnack & A. Prazmowski
Date: circa 1880
Accessories: unmarked ocular; triple nosepiece; objective box no. 19642; objectives in box: 4, 9, convertible; adapter to Hartnack objectives; diaphragms; flat case
Object number: 1150
E. Hartnack & A. Prazmowski
Date: circa 1870
Accessories: objectives (2): No. 4, 7; oculars (2): No. 2, 4; flat case with key
Object number: 1339
E. Hartnack & A. Prazmowski
Date: circa 1870
Accessories: objectives (7): 1, 2, 4, 5, 7, 9,10 in fitted box ; eyepieces (4): 1, 4, 5, 6; cup diaphragms (4); polarizer set; bull's eye condenser on stand; Oberhaeuser-style camera lucida; tweezers; substage rotating wheel diaphragm attached to holder with blue glass filter; substage glass filter holder with blue glass filter; substage condenser; dual nosepiece, Hartnack 1/100 mm stage micrometer; flat case; key; magnification table; price lists (2).
Object number: 1080
E. Hartnack & A. Prazmowski
Date: circa 1881
Accessories: oculars (2): 1, 3; objectives (2): 2, 6; one stage clip; adapters from Society thread to Hartnack objectives (2); case
Object number: 1289
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
E. Hartnack et Cie
Date: 1870
Accessories: one ocular
Object number: 1156
Spencer Lens Company
Date: circa 1908
Accessories: oculars (2): 4x, 8x; Spencer objectives (3): 16, 4, 1.8 mm; blue filter; dark field stop; booklet; slides (4); box of cover slips; case; key.
Object number: 1323