B&L B continental student compound microscope
Datecirca 1890
Inventory Number1196
ClassificationMicroscope
Subject
Maker
Bausch & Lomb Optical Company
1853-present
User
Wellesley College
founded 1870
User
Peabody Museum of Salem
1799-1992
Cultural Region
Place of Origin
Dimensionsmicroscope: 30 × 12.8 × 9.2 cm (11 13/16 × 5 1/16 × 3 5/8 in.)
case: 12.5 x 18.5 x 32 cm (4 15/16 x 7 5/16 x 12 5/8 in.)
blue board box: 14 × 21.6 × 40.6 cm (5 1/2 × 8 1/2 × 16 in.)
case: 12.5 x 18.5 x 32 cm (4 15/16 x 7 5/16 x 12 5/8 in.)
blue board box: 14 × 21.6 × 40.6 cm (5 1/2 × 8 1/2 × 16 in.)
Material
Accessoriesobjectives (2): series I 2/3 0.25 N.A., series I 1/6 0.82 N.A; oculars (2); diaphrams (3); case
Bibliography
DescriptionThis is a Bausch & Lomb continental B student-type compound microscope. It has a heavy brass u-shaped foot and an extendable eyepiece tube. The coarse adjustment is by rack and pinion. The fine adjustment is by a knob on top of the post. A double nosepiece is attached to the body.
There is a fixed, square stage. A mirror and a sliding plate with a collar for separate cup diaphragms are located beneath the stage.
The patent date [ "Pat. Feb. 16, 1897"] appears on the focus knob.
This microscope is accompanied by a wooden case that is numbered 8877.
There is a fixed, square stage. A mirror and a sliding plate with a collar for separate cup diaphragms are located beneath the stage.
The patent date [ "Pat. Feb. 16, 1897"] appears on the focus knob.
This microscope is accompanied by a wooden case that is numbered 8877.
Signedon stage: Bausch & Lomb / Optical Co.
on nosepiece: BAUSCH & LOMB OPT. CO. / ROCHESTER, N.Y.
on canisters: BAUSCH & LOMB OPTICAL CO. / ROCHESTER, N.Y. / NEW YORK CITY
on 2/3 objective: Bausch & Lomb Optical Co. / NEW YORK ROCHESTER, N.Y. CHICAGO
Inscribedon focus knob cap: Pat. Feb. 16, 1897
Curatorial RemarksThis microscope is similar to 1197 except that this one has metal plated tips to fine adjustment knob.
ProvenanceBiology Department, Wellesley College, Wellesley, MA, circa 1890; Peabody Museum, Salem, MA, ?-1940; on permanent loan to CHSI.
Historical AttributesThis microscope was used in Wellesley College and the Peabody Museum in Salem, MA [see note card for additional information].
Bausch & Lomb Optical Company
Date: circa 1900
Accessories: objectives (2): series I 2/3 0.25 N.A., series I 1/6 0.82 N.A; oculars (2); diaphrams (3); case
Object number: 1197
Bausch & Lomb Optical Company
Date: circa 1910
Accessories: objectives with original canisters (3): 1.9 mm 1.30 n.a., 4 mm 0.65 n. a.,16 mm 0.25 n. a.; oculars (2): 5, 10; immersion oil bottle; standing case with key
Object number: 1304
Bausch & Lomb Optical Company
Date: 1900-1908
Accessories: objectives (3): 2 mm, 4 mm, 16 mm; oculars (2): 5, 10; condenser with two diaphrams; standing case with lens card
Object number: 1298
Carl Reichert
Date: circa 1879
Accessories: 5 objectives: Hartnack # 4, 7, 8, No. II Hom. Imm. No. 2 in Hartnack case; Homog. Oil immersion by Reichert in own case. 2 oculars: 2, 3; 2 disc diaphrams, 3 cup diaphrams which fit in sliding plate, sliding plate and holder for diaphrams; condenser; revolving nose piece; extra frame for mirror on slider; fitted case; key to case.
Object number: 1077a
Ernst Leitz (company)
Date: 1898
Accessories: objectives (3): Leitz 3, 7 in original canisters; Spencer Lens Co. 2mm N.A. 1.30 ser. no. 9197; oculars (2): 3, 2; Abbe condenser; holder with 3 cup diaphragms; glass filters (2); box of cover slips; key; standing case
Object number: 1994-1-0007a
Carl Zeiss Jena
Date: circa 1928
Accessories: oculars(2): a pair of K 15x Mobimi; objectives (3): apochromats 20 n.a. 0.65 and 70 n.a. 1.25, and achromat 8 n.a. 0.20; mechanical stage; condenser with iris diaphgragm; locking screw with washer and screwdriver; standing case, key.
Object number: 1369
Hawkins & Wale
Accessories: Wale objectives (7): 1 1/2, 1, 4/10, 1/8, 1/5, 1/5, n.a.; oculars (3); camera lucida; substage diaphragms; tweezers; glass discs (2); bull's eye with stand
Object number: 1151
Accessories: 8 3-ring books with 35mm slides, 16 notebooks relating to the slides, 8 misc. books. Filed in the accession file are four sheets titled " Atomic Physics Series", Part I - The Electron; Part III (A) - The Nucleus; Part IV - Atom Smashers; Part V - Uranium Fission"
Object number: 2015-1-0026
Bausch & Lomb Optical Company
Date: circa 1898
Accessories: objective lenses with brass cases (3); oculars (2): 1,2; case; camera lucida [1057b]
Object number: 1057a
Bausch & Lomb Optical Company
Date: 1876-1890
Accessories: objectives (2): Spencer, 44x 4 mm n.a. O.85; B&L 1/5
Object number: 2002-1-0057
Carl Reichert
Date: circa 1879
Accessories: 1077a: 5 objectives: Hartnack # 4, 7, 8, No. II Hom. Imm. No. 2 in Hartnack case; Homog. Oil immersion by Reichert in own case. 2 oculars: 2, 3; 2 disc diaphrams, 3 cup diaphrams which fit in sliding plate, sliding plate and holder for diaphrams; condenser; revolving nose piece; extra frame for mirror on slider; fitted case; key to case.
1077b: dark field condenser
1077c: camera lucida
Object number: 1077a-c
Ernst Leitz (company)
Date: circa 1919
Accessories: oculars (2): 3, 8x; accessory box; Leitz objectives (5); wrenches (2); ground glass; N.A. 1.45 condensor cap; Abbe condensor; rotary stage; case
Object number: 1345