Grunow large student compound microscope
Datecirca 1857
Inventory Number1021
ClassificationMicroscope
Subject
Maker
J. & W. Grunow & Co.
fl. 1849 - 1869
Cultural Region
Place of Origin
Dimensions40 × 15 × 17.5 cm (15 3/4 × 5 7/8 × 6 7/8 in.)
Material
Accessoriesocular; broken objective
DescriptionThis is a Grunow large student compound microscope. The Y-shaped base and the curved arm are constructed of cast-iron and blackened. The rest of the instrument is brass. The microscope has a long monocular body tube with rack and pinion for the coarse adjustment. The fine focus is by a screw acting though a lever on stage.
A rectangular stage is attached to the lower end of the curved arm. The stage is fitted with a rotated disc diaphragm beneath. There is also a substage double mirror on a swinging arm.
A rectangular stage is attached to the lower end of the curved arm. The stage is fitted with a rotated disc diaphragm beneath. There is also a substage double mirror on a swinging arm.
Signedon body tube: Grunow / New Haven Ct.
Inscribedon body tube: No. 216
ProvenanceAlpheus Hyatt; Ernst-Lewis Collection of Microscopes (inv. no. 21), Harvard Medical School.
Historical AttributesThis microscope was owned by Professor Alpheus Hyatt (1839 - 1902) who used it for his work on fossil cephalopods and fossil anthropology [See file for more detail and notes by Drs. Ernst and Lewis].
R. B. Tolles and C. E. Grunow
Date: circa 1860
Accessories: No objective; 1 medium power solid Tolles ocular of 34 mm dia., marked: "Pat'd. Sept. 25 1855." ; no condenser or diaphragm; single small concave substage mirror.
Object number: 1137
John B. Dancer
Date: circa 1845
Accessories: ocular; objective; standing case
Object number: 1376
Rudolf Fuess
Date: circa 1890
Accessories: ocular; objective; substage mirror
Object number: 1207
R. & J. Beck
Date: 1876
Accessories: oculars (2) in microscope; Darker's selenite retarding filters (3); wheel diaphragm; mechanical rotary stage; stage slider. Other accessories are in the case (1122b), including monocular draw tube; oculars (3); objectives in cans (5); empty can; Lieberkühn; polarizing set; slides; camera lucidas (2); etc.; plus a Beck patent substage condenser (1122c); and apertometer (1122d).
Object number: 1122a
Joseph Zentmayer
Date: circa 1880
Accessories: Zentmayer objective with cannister: 1 1/2; paired oculars (3); Bicknell's achromatic condenser; rotating wheel diaphragm; polarizing eyepiece, polarizer by objective; camera lucida; plane glass window and brass socket; monocular tube; parts box with key; standing case with key.
Object number: 1015
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: 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
R. & J. Beck
Date: circa 1879
Accessories: objective 2 in. Ross No. 20372 in original case; empty case for 1.5 in. objective R&J Beck; ocular
Object number: 1140
W. Watson & Sons Ltd.
Date: circa 1885
Accessories: oculars (2 pairs): B and D; objectives in marked canisters (4): 1/4, 1/2, 1, 3 inches; condenser with iris diaphragm; rotating wheel diaphragm; iris diaphragm; set of 4 disk diaphragms in brass box; triple nosepiece; live box; prisms for Wenham binocular system (2); stage for simple microscope with rotating wheel diaphragm; vulcanite stage; spare knobs (2); parts box; case
Object number: 1249
Bausch & Lomb Optical Company
Date: circa 1877
Object number: 2002-1-0050
A. Nachet
Date: circa 1885
Accessories: Fixed (?) ocular with crosshairs; flip analyzer in tube; standard 11.5 x 0.45 mm objective No. 5 , but in sliding mount; substage polarizer; no case.
Object number: 1202
Smith, Beck & Beck
Date: circa 1860
Accessories: complete set of approximately 50 accessories in two boxes [see early file card]
Object number: 1237