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Description

States that he needs to see Edmond Halley's instrument, made in 1692, to determine whether it is similar to his own invention

Reference number
EL/H4/24
Earliest possible date
07 October 1731
Page extent
1 page
Format
Manuscript

Creator name

John Hadley

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Citation

John Hadley, Letter, from John Hadley to Cromwell Mortimer, 07 October 1731, EL/H4/24, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/el_h4_24/letter-from-john-hadley-to-cromwell-mortimer, accessed on 13 January 2025

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  • Early Letters

    Dates: 1613-1740

    The archival collection known as 'Early Letters' is composed of original manuscript letters sent to, or collected by, the Royal Society from English and foreign correspondents.

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