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The Royal Society: Science in the Making

Diagram, tangents of magnetic curve by [Thomas Stephens Davies?]

Reference number: PT/74/3/12

Date: 1836

Description

Plate 15, figure 16 showing a diagram of the tangents of a magnetic curve studied by Davies. Inscribed with publication and plate details. An outline draft of another geometric figure is pictured verso. Not signed. The manuscript for this paper is wanting.

Subject: Geodesy

Published in Philosophical Transactions as part of paper titled 'Geometrical investigations concerning the phenomena of terrestrial magnetism. Second series:— On the number of points at which a magnetic needle can take a position vertical to the Earth's surface' by Thomas Stephens Davies.

Received by the Royal Society on 28 January 1836. Read 4 February 1836.

Reference number
PT/74/3/12
Earliest possible date
1836
Physical description
Ink on paper
Page extent
2 pages
Format
Diagram

Creator name

Thomas Stephens Davies

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Citation

Thomas Stephens Davies, Diagram, tangents of magnetic curve by [Thomas Stephens Davies?], 1836, PT/74/3/12, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pt_74_3_12/diagram-tangents-of-magnetic-curve-by-thomas-stephens-davies, accessed on 19 April 2026

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  • Philosophical Transactions

    The 'Philosophical Transactions' collection comprises manuscript versions of papers published in The Philosophical Transactions of the Royal Society, the world’s first and longest continuously running journal dedicated to science.

    Dates: 1802 - 1865

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