B&L Y dissecting simple microscope
Datecirca 1900
Inventory Number1348
ClassificationMicroscope
Subject
Maker
Bausch & Lomb Optical Company
1853-present
Supplier
Arthur H. Thomas Company
1900-present
User
Department of Legal Medicine, Harvard Medical School
1877 - 1966
Place of Origin
Dimensionsmicroscope: 16 × 14 × 10.3 cm (6 5/16 × 5 1/2 × 4 1/16 in.)
case: 19 x 16.5 x 17.5 cm (7 1/2 x 6 1/2 x 6 7/8 in.)
case: 19 x 16.5 x 17.5 cm (7 1/2 x 6 1/2 x 6 7/8 in.)
Material
Accessoriesobjectives (2); arm rests (2); case
Bibliography
DescriptionThis is a Bausch & Lomb simple dissecting Y microscope. It has a blackened u-shaped base made of iron and a nickel-plated brass vertical pillar. The top of the pillar has an articulated nickel arm with two ring mounts. Two objective lenses are nickel plated and stored in the box. There is a rack and pinion coarse adjustment.
The rectangular stage made of a blackened brass frame with a glass top. Stage clips are nickel. The substage mirror is large and plano-concave. It is fork mounted on a swinging arm. Two wooden arm rests are included. These fold up for storage in the standing wooden case.
The case has a rectangular brass handle and a ivory name plate.
The rectangular stage made of a blackened brass frame with a glass top. Stage clips are nickel. The substage mirror is large and plano-concave. It is fork mounted on a swinging arm. Two wooden arm rests are included. These fold up for storage in the standing wooden case.
The case has a rectangular brass handle and a ivory name plate.
Signedon the heel of the foot in a circular medalion: BAUSCH & LOMB OPTICAL CO. / ROCHESTER, N. Y. /... / ARTHUR H. THOMAS CO. / PHILADELPHIA, PA.
Inscribedin center of the circular medalion on the heel of the base: 39822
ProvenanceDepartment of Legal Medicine, Harvard Medical School; transfer to CHSI courtesy of R. J. Wolf, Countway Library of Medicine, 1980.
Historical AttributesThis microscope was used in the Department of Legal Medicine for counting blood cells..
Triple Alliance: Zeiss - Bausch & Lomb - Saegmuller
Date: 1908-1915
Accessories: coddington magnifiers (2): 38mm, 19mm; handrests (2); wooden case
Object number: 1997-1-1880
Triple Alliance: Zeiss - Bausch & Lomb - Saegmuller
Date: 1908-1915
Accessories: 19mm B & L Coddington magnifier; 7x B & L Coddington magnifier; handrests (2); case
Object number: 1999-1-0078
Ernst Leitz (company)
Date: circa 1910
Accessories: handrests (2); opal stage plate; 20x lens; case; key.
Object number: 1999-1-0076
Ernst Leitz (company)
Date: circa 1925
Accessories: handrests (2); opal stage plate; 20x Leitz lens; 19mm Bausch & Lomb Coddington lens; case; key
Object number: 1999-1-0077
Ernst Leitz (company)
Date: circa 1925
Accessories: aplanatic lens: 16x; matte white porcelain insert; handrests (2); case with key
Object number: 1996-1-0125
Bausch & Lomb Optical Company
Date: 1880-1889
Accessories: magnifier lens; concave substage mirror
Object number: 2002-1-0052
W. Watson & Sons Ltd.
Date: circa 1930
Accessories: lens; case with key (1997-1-1878b).
Object number: 1997-1-1878a
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
Ernst Leitz (company)
Date: circa 1896
Accessories: magnifiers (2): 20x and 16x; case with key
Object number: 1997-1-1879
Bausch & Lomb Optical Company
Date: circa 1899
Accessories: B&L objectives on triple nosepiece and with cans (3): 1/12, 1/6, 2/3"; Zeiss objective for oil immersion: 40; Leitz mechanical stage; oculars (2): 1, 2; Abbe condensor; immersion oil can; standing case; key; spare stage clips.
Object number: 1351
Bausch & Lomb Optical Company
Date: circa 1940
Accessories: 1 pair oculars: 10: drum nosepiece with dovetail mount; 1 pair fixed objectives: 0.7X; dovetail slides with objective pairs (2): 2.0X, 7.5X; pair of detachable hand rests; 4 spare stage clips.
Object number: 1381
Bausch & Lomb Optical Company
Date: circa 1903
Accessories: eyepiece; objectives (3): "Variable", 2/3" 0.24 NA, 1/6''; triple nosepiece; substage including Abbe condenser; revolving mechanical stage
Object number: 2002-1-0055