Leitz phase compound microscope
Datecirca 1970
Inventory Number2003-1-0004
ClassificationMicroscope
Subject
Maker
Ernst Leitz (company)
1849 - 1986
Maker
Carl Zeiss Jena
1904 - 1948
Maker
Carl Zeiss (Oberkochen)
founded 1951
Repaired by
Caley & Whitmore Corporation
founded 1964
User
Farlow Herbarium
founded 1919
Cultural Region
Place of Origin
Dimensions33.9 × 15.5 × 19.4 cm (13 3/8 × 6 1/8 × 7 5/8 in.)
Material
AccessoriesLeitz objectives (3 Phaco achromats): 100x, D44667; 40x, D4527; 10x, D43270; Zeiss objective A, 17776; phase condenser, D36977; Leitz oculars (pair): Periplan 10X; Leitz phase eyepiece ("Lichteinstellupe"); anonymous 10x micrometer eyepiece
DescriptionThis is a Leitz phase compound microscope.
It has a modern, non-inclinable stand with a triangular cast iron base. The arm is a curved hook attached to an upright rectangular support that carries the rack and pinion and focusing knobs. The end of the arm carries an inclined binocular tube marked 1.25X. There is a quadruple, revolving nosepiece. The coarse and fine focus are mounted on concentric drums. Coarse focus is by rack and pinion. Fine focus is by micrometer screw.
The square mechanical stage has two verniers. The substage illuminating apparatus includes a phase condenser with revolving wheel and iris diaphragm, all mounted on a vertical frame that can be adjusted by rack and pinion. The base has a socket to hold a lamp or mirror. Neither is present.
Eyepieces are by Leitz and all but one objective. That is by Zeiss.
It has a modern, non-inclinable stand with a triangular cast iron base. The arm is a curved hook attached to an upright rectangular support that carries the rack and pinion and focusing knobs. The end of the arm carries an inclined binocular tube marked 1.25X. There is a quadruple, revolving nosepiece. The coarse and fine focus are mounted on concentric drums. Coarse focus is by rack and pinion. Fine focus is by micrometer screw.
The square mechanical stage has two verniers. The substage illuminating apparatus includes a phase condenser with revolving wheel and iris diaphragm, all mounted on a vertical frame that can be adjusted by rack and pinion. The base has a socket to hold a lamp or mirror. Neither is present.
Eyepieces are by Leitz and all but one objective. That is by Zeiss.
Signedon binocular body: ERNST LEITZ WETZLAR / GERMANY
on top of pillar and Phaco objectives: Leitz [in cursive letters] / WETZLAR / GERMANY
on objective A: C. ZEISS
on oculars: LEITZ WETZLAR GERMANY
on phase condenser: LEITZ WETZLAR / GERMANY
on stage: GERMANY
on label on arm: CALEY 7 WHITMORE CORP. / INSTRUMENT SERVICE SPECIALISTS / 8 HIGHLAND AVE SOMERVILLE, MASS.
Inscribedon vertical post: 664619
on condenser: D 36977
on arm in red paint: P53
FunctionFarlow Herbarium, Harvard University, Cambridge, MA.
ProvenanceFarlow Herbarium, Harvard University
Historical AttributesThis instrument was used in the Farlow Herbarium, Harvard University, Cambridge, MA.
Ernst Leitz (company)
Date: circa 1937
Accessories: standard eyepieces (3): 8X P, Periplan. OK 10X, and Periplan. Ok. 25X; wide eyepieces (3): 1, 1, 8X, 10X; objectives (4) in fitted case: 1b 4.3X, 3 10X, P7 62X, P 1/12 oel; waveplates (2); condenser with polarizer; mechanical stage; loupe 6x; box of cover glasses; standing case; key; objective adaptors (4); and watch keys (2)
Object number: 1999-1-0020a
Ernst Leitz (company)
Date: circa 1963
Accessories: AO oculars (2): 15x WF; Leitz objectives (2): Oel 100/1.3, 40/0.65; Achromatic, centerable condensor NA 0.9 with iris; mechanical stage; lamp.
Object number: 1996-1-0341
Bausch & Lomb Optical Company
Date: circa 1900
Accessories: eyepieces (2): B&L, 1X, and Leitz, 10X; objectives (2): 1/6 , 1/2; cardiod condenser; case
Object number: 2001-1-0032
Bausch & Lomb Optical Company
Date: 1930-1935
Accessories: micrometer eyepiece; oculars (5): 1 Leitz 8x, 1 pair B&L 6.4x, 1 pair B&L 12.5x; objective: Spencer 48 mm., 2.2x; monocular tube; glass bottle for immersion fluid; B & L canisters (3); case with key
Object number: 2003-1-0007
Ernst Leitz (company)
Date: circa 1902
Accessories: Leitz objectives (2): 3, 7; ocular 10x; Abbe condenser; bull's eye without base or mount [1297b]
Object number: 1297a
Carl Zeiss, Optische Werkstätte, Jena
Date: circa 1902
Accessories: oculars (5); objectives (5); microplanar objectives (2); iris diaphragm; abbe condenser; collars and sleeves for photography; parts box; Leitz object micrometer (1308b); cardioid condenser (1308d); immersion oil bottle (1308c) ; Leitz erecting prism (1308e); standing case with key
Object number: 1308a
W. Watson & Sons Ltd.
Date: circa 1920
Accessories: oculars (2 pairs): Bausch & Lomb 10x, Watson & Sons 6x; Watson & Sons objectives with canisters (2): 1/6, 2/3"; Bausch & Lomb objective 1.9mm; Leitz mechanical stage; Abbe condensor; standing case
Object number: 1324
Carl Zeiss Jena
Date: 1932-1940
Accessories: oculars (2): Leitz 6x; objectives (3): HI 90 / 1.25, 40 / 0.65, AA 10 / 0.30; condenser with iris; triple nosepiece; attached mechanical vulcanite stage
Object number: 1996-1-0345
Ernst Leitz (company)
Date: circa 1953
Accessories: objectives (4); eyepieces (8); oil bottle; dropper bottle; cover slips; case.
Object number: 2009-1-0011b
Ernst Leitz (company)
Date: circa 1953
Accessories: objectives (4); eyepieces (8); oil bottle; dropper bottle; cover slips; case.
Object number: 2009-1-0011a
Ernst Leitz (company)
Date: circa 1930
Accessories: Leitz objectives (2): 3, 7; "projection" ocular; integral arc lamp assembly; glass water chamber; frame with tripod base
Object number: 1347
Ernst Leitz (company)
Date: 1891
Accessories: 2 RMS objectives in original canisters marked E. Leitz 1 and 5; 2 empty canisters 3 and 7; 4 oculars : 1, 3, 4, 5; triple nosepiece; Abbe condenser; 3 cup diaphragms with holder; blue glass filter; standing case with key.
Object number: 1172