Person Pepys; William Hasledine (1775 - 1856); surgical instrument maker and natural philosopher Pepys William Hasledine surgical instrument maker and natural philosopher 1775 - 1856 British Male London, England, United Kingdom, Europe 23 March 1775 17750323 Earl's Terrace, Kensington, London, England, United Kingdom, Europe 17 August 1856 18560817 Burial: Terrace Catacombs, Highgate Cemetery, London, England, United Kingdom, Europe

Earl's Terrace, Kensington, London (-1856)

Scientific instrument maker Career: Apprenticeship under his father (1789-1796); liveryman with Worshipful Company of Cutlers (1796); succeeded to and extended his father's business to include scientific instruments (1805); developed various apparatus including a soda-water apparatus (1798), a eudiometer (1807), a voltaic coil (1817), and a mercury gasometer; twice master in the Cutlers' Company (1820s); benefactor to the Cutlers' charities; designed and equipped the London Institution's laboratory at Finsbury Circus (1819); fulfilled a variety of roles within the Royal Institution (1800-1846) Memberships: Fellow of the Geological Society (active in the British Mineralogical Society (1799) and the Askesian Society, merged to form Geological Society; Treasurer and Vice-President); Society of Arts (1801); Pitt Club (1822); Royal Asiatic Society (1823); Athenaneum; Royal Institution (one of original proprietors, PRI) Parents: William Hasledine Pepys and Letitia Weedon Married: Lydia Walton Children: seven overall, including William Hasledine Pepys and Robert Edmond Pepys Pepys was one of the founding members of the Askesian Society in 1796 and also frequently corresponded and collaborated with Quaker scientists such as William Allen and Luke Howard. His inventions and apparatus contributed to progress in a variety of fields, e.g. chemistry, botany, and medicine. Royal Society roles: Sworn in on 1 December 1832 Committee and panels: Metereological Committee (22 December 1831); ; Committee for Report on Hydrometer (1 December 1832); ; Catalogue Committee (5 December 1833); ; Excise Committee (1 December 1832); ; Committee of Chemistry (31 May 1838) Fellow 28/01/1808 32 Sources: Bulloch's Roll; DNB; ODNB 'The Quarterly Journal of Science and the Arts' (London), Vol. 1, pp.193-194 References: David Gooding, '"He Who Proves, Discovers": John Herschel, William Pepys and the Faraday Effect' in NR 1984-85 vol 39 pp 229-244 ©The Royal Society International Standard Archival Authority Record for Corporate Bodies, Persons and Families - ISAAR(CPF) - Ottawa 1996 ISBN 0-9696035-3-3 National Council on Archives, Rules for the Construction of Personal, Place and Corporate Names, 1997 https://pictures.royalsociety.org 23 Mar 1775 - 17 Aug 1856 The past Fellows entries are under continuous revision. If you have queries or additional information to contribute, please contact Library@royalsociety.org. Content in external sources is not controlled by the Royal Society and historical sources may include content that is now unacceptable. Reviewed on 22/10/2021 as part of Name Authority Project update. NA7547 21/11/2001 Andyg Pmab 05/06/2025 RS_NET\VirginiaM Yes http://viaf.org/viaf/40162552 b70532a2-8123-4319-aba0-0d1cda941580