Dip Circle


Wesleyan University was founded in 1831, and during the next several years it purchased some $6000 worth of scientific apparatus, much of it made in Paris. This dip circle is from that early period period. The vertical circle is suspended from a brass hook attached to a rotating knob, and so can be turned in any direction. The horizontal circle, on top, is graduated to single degrees. The vertical circle is graduated to 30 minutes; the glass covers are missing. The inscriptions read "Lerebours à Paris" and "W.U. No. 2"

Ref: Lerebours, Notice d'instruments d'optique, de mathematiques, et de physique (Paris, 1830).

Stanley Guralnick, Science and the Ante-Bellum American College (Philadelphia, 1975), pp. 45-46.

Maker: Lerebours

Location: Currently not on view

Place Made: France: Île-de-France, Paris

Subject: Science & Scientific Instruments


See more items in: Medicine and Science: Physical Sciences, Science & Mathematics, Measuring & Mapping


Exhibition Location:

Credit Line: Wesleyan University

Data Source: National Museum of American History

Id Number: 1989.0013.03Accession Number: 1989.0013Catalog Number: 1989.0013.03

Object Name: dip circle

Physical Description: wood (overall material)metal (overall material)Measurements: overall: 12 in; 30.48 cmoverall: 13 3/16 in x 12 1/16 in x 4 1/4 in; 33.49625 cm x 30.63875 cm x 10.795 cm

Guid: http://n2t.net/ark:/65665/ng49ca746a8-e3ce-704b-e053-15f76fa0b4fa

Record Id: nmah_1029356

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