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Description

Letter regarding the invention by Charles Brown [erroneously referred to as George Brown in the letter] of a machine to aid in subtracting, multiplying and dividing.

Subject: Mathematics

Read to the Royal Society on 25 January 1698

Reference number
CLP/1/6
Earliest possible date
1698
Physical description
Ink on paper
Page extent
2 pages
Format
Manuscript

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Citation

Letter, regarding Charles Brown's rotula arithmetica from unknown author to unknown recipient, 1698, CLP/1/6, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/clp_1_6/letter-regarding-charles-browns-rotula-arithmetica-from-unknown-author-to-unknown-recipient, accessed on 15 February 2026

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  • Classified Papers

    The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.

    Dates: 1592 - 1741

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