drum compound microscope
Date1840-1850
Inventory Number1153
ClassificationMicroscope
Subject
Attributed to
Georges Oberhaeuser
1798 - 1868
User
Jefferson Physical Laboratory, Harvard University
founded 1884
Cultural Region
Place of Origin
Dimensionsmicroscope: 28.1 × 8.5 × 7.4 cm (11 1/16 × 3 3/8 × 2 15/16 in.)
case: 11.1 × 30 × 11.5 cm (4 3/8 × 11 13/16 × 4 1/2 in.)
case: 11.1 × 30 × 11.5 cm (4 3/8 × 11 13/16 × 4 1/2 in.)
Material
Accessories1 convertible objective; 1 eyepiece; 7 glass slides; 10 prepared slides labeled in French; 2 dissecting needles; trough; quartz; cover slip; box.
DescriptionThis is a drum microscope of the French form in the style of George Oberhauser.
The substage concave mirror is held in a brass drum with an aperture to permit light to reach the mirror. The mirror is tilted by means of a knob on the outside of the drum. On top of the drum is a rectangular stage. Above the stage is a sleeve that carries the body tube. There is no ocular draw tube. Coarse focus is by drawing the body tube. Fine focusing is by means of a screw lifting the stage. The round base is lead-filled brass that is painted green. The microscope base is threaded in order to stand on top of the case in a wooden socket, or it can be stood on its own on a table.
The microscope has one ocular and one convertible objective on the nosepiece.
The flat mahogany case is fitted with compartments. Parts are cushioned with green wool. On the outer lid is a turned wooden socket with a threaded rod in the center. It is cushioned by black wool.
Accessories include two steel dissecting needles with ebony handles stored inside the lid. In a covered chamber are 7 plain glass slides, a circular cover slip, 10 prepared slides with paper covers and French handwriting of specimen names; a brass rimmed wet trough, and some pieces of quartz.
The substage concave mirror is held in a brass drum with an aperture to permit light to reach the mirror. The mirror is tilted by means of a knob on the outside of the drum. On top of the drum is a rectangular stage. Above the stage is a sleeve that carries the body tube. There is no ocular draw tube. Coarse focus is by drawing the body tube. Fine focusing is by means of a screw lifting the stage. The round base is lead-filled brass that is painted green. The microscope base is threaded in order to stand on top of the case in a wooden socket, or it can be stood on its own on a table.
The microscope has one ocular and one convertible objective on the nosepiece.
The flat mahogany case is fitted with compartments. Parts are cushioned with green wool. On the outer lid is a turned wooden socket with a threaded rod in the center. It is cushioned by black wool.
Accessories include two steel dissecting needles with ebony handles stored inside the lid. In a covered chamber are 7 plain glass slides, a circular cover slip, 10 prepared slides with paper covers and French handwriting of specimen names; a brass rimmed wet trough, and some pieces of quartz.
Signedunsigned
ProvenanceFound in a cabinet in the Jefferson Physical Laboratory, Harvard University; transferred to CHSI
Georges Oberhaeuser
Date: circa 1845
Accessories: objectives (3): 7 and 4 on nosepieces, unnumbered one detached; oculars (2); bull's eye condenser; live box; glass slides (4); case; key.
Object number: 1384
Georges Oberhaeuser
Date: 1848
Accessories: objectives (2): 4 and 7; oculars (2): 2 and 3; bull's eye lens; 2 boxes of cover glasses; numbered mahogany flat case with key.
Object number: 1165
Charles-Louis Chevalier
Date: circa 1840
Accessories: 2 convertible objectives: 1, 2, 3 and 0,00,000; 2 oculars; simple magnifiers: 3 and 5, with support bracket; extension pillar; bull's eye stage condenser on jointed arm; forceps; 3 prepared slides; box of cover glasses; 1/100 mm stage micrometer; camera lucida; tall bell jar; padlock on chain; case with key; table of magnifications
Object number: 1079
Charles-Louis Chevalier
Date: circa 1833
Accessories: 1 convertible objective, unmarked; 2 oculars; bull's eye condenser on jointed arm; 4 prepared slides, 3 glass slides; wrapped paper with pityriasis versicolor; specimen list on a card; flat case in form of sliding drawer; key.
Object number: 1071a
E. Hartnack & A. Prazmowski
Date: circa 1870
Accessories: objectives (2): 4 and 7; ocular: 3; tweezers; brush; 2 dissecting needles; scalpel; glass rod dropper; flat case with key; table of magnifications.
Object number: 1160
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
Edward Bryan
Date: 1866-1879
Accessories: objectives in canisters (3): 1/4, 1, 2 inch; ocular; live box; box of cover slips; prepared slides (5 small, 12 large); ivory slide; 5 powdered specimens in blue paper; bull's eye condenser; stage forceps; standing case with parts drawer.
Object number: 1085
English
Date: circa 1795
Accessories: 1 ocular; 6 objectives: 1 to 6; stage condenser; stage forceps; live box; live well (watch glass); black/white stage plate; fish tube; 6 prepared wooden slides; tweezers; dissecting needle; a quill; bull's eye lens on stand; round brass box; 3 narrow glass slides; 3 glass slides; flat mahogany case.
Object number: 1303
Andrew Pritchard
Date: 1835-1840
Accessories: objectives (4); oculars (6); lieberkühns (4); stage forceps; bull's eye condenser on stand; spring stage; extra mechanical stage; polarizer; cup diaphragms and holders; substage fork mount; live box; glass troughs (2); concave glass; fish tube holder; case; 2 keys. See also slide micrometers (2) (1088b,c)
Object number: 1088a
R. Bailey
Date: circa 1910
Accessories: 1 Objective: 1/2 "; 10 prepared glass slides; box;
Object number: 1333
J. & A. Molteni
Date: circa 1860
Accessories: objectives (2); oculars (2); pill box; table of magnifications; case
Object number: 1259
Edward Marmaduke Clarke
Date: 1838-1840
Accessories: 5 objectives for simple microscope; 2 objectives for compound microscope (1 in can; 1 with lieberkuhn); cup diaphragm with lieberkuhn in brass box; brass box of cover slips; stage forceps; tweezers; 2 live boxes; frog plate; bull's eye; fish tube wire; wrench; chamois; 2 unmounted lenses; 40 prepared slides; standing case; 2 keys.
Object number: 1018