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Description

Barnes describes the construction of his quadrant used to measure horizontal angles. The quadrant consists of a frame, an arch, a nonius, an index glass, an object glass, and a light vane. Includes a separate page of illustrations. The covering letter for this paper is found at AP/14/1/1.

Subject: Scientific Instruments

Received by the Royal Society on 7 August 1830.

Reference number
AP/14/3
Earliest possible date
1830
Physical description
Ink on paper
Page extent
7 pages
Format
Manuscript

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Citation

Unpublished paper, 'Description of a quadrant for measuring horizontal angles by reflection' by W [William] Barnes, 1830, AP/14/3, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_14_3/unpublished-paper-description-of-a-quadrant-for-measuring-horizontal-angles-by-reflection-by-w-william-barnes, accessed on 12 February 2025

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  • Archived Papers

    Dates: 1768-1989

    The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

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