Microscope

Description:

This compound monocular is an example of the American Concentric microscope that Bausch & Lomb brought to market in the mid-1880s. It has coarse and fine focus, circular stage, and tri-leg base. The sub-stage iris diaphragm and mirror can be angled above and below the stage. The body moves, as it were, within a circular arm. The inscriptions on the stage and sub-stage apparatus read “BAUSCH & LOMB OPTICAL CO.” The inscriptions on the arm read “PAT. OCT. 3, 1876” and “PAT. OCT. 13, 1885.” Jacob Dolson Cox, a lawyer, Union Army general, governor of Ohio, Secretary of the Interior, and active microscopist, devised the form.

Ref: Bausch & Lomb, Price List of Microscopes, Objectives and Accessories (Rochester, 1884), pp. 22-23.

Ernst Gundlach, “Microscope,” U.S. Patent 182,919 (Oct. 3, 1876).

Edward Bausch, “Microscope,” U.S. Patent 328,277 (Oct. 13, 1885).

Date Made: ca 1885

Maker: Bausch & Lomb

Location: Currently not on view

Place Made: United States: New York, Rochester

Subject: Science & Scientific Instruments

Subject:

See more items in: Medicine and Science: Medicine, Microscopes, Science & Mathematics

Exhibition:

Exhibition Location:

Credit Line: Bausch & Lomb Optical Company

Data Source: National Museum of American History

Id Number: MG.M-12189Accession Number: 272522Catalog Number: M-12189272522.04

Object Name: microscope

Measurements: overall: 12 1/4 in x 7 1/2 in x 10 1/2 in; 31.115 cm x 19.05 cm x 26.67 cm

Guid: http://n2t.net/ark:/65665/ng49ca746aa-307b-704b-e053-15f76fa0b4fa

Record Id: nmah_1172333

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