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Description

Two tables, labelled tables I-II, showing 'new chemical characters' of Hassenfratz and Adet as drawn by Watt and 'initial letters to be applied to the characters to distinguish species'.

Subject: Chemistry / History

The affiliated paper was published in volume 25 of the Notes and Records of the Royal Society as 'An unpublished chemical essay of James Watt'.

Reference number
AP/83/14
Earliest possible date
1970
Physical description
Ink on paper
Page extent
5 pages
Format
Typescript

Creator name

David F Larder

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Citation

David F Larder, Supporting data, regarding 'An unpublished chemical essay of James Watt' by David F Larder, 1970, AP/83/14, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_83_14/supporting-data-regarding-an-unpublished-chemical-essay-of-james-watt-by-david-f-larder, accessed on 14 January 2026

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  • Archived Papers

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is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

    Dates: 1768 - 1989

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