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Extract of a letter, from Monsieur Geoffroy [Claude Joseph] to Hans Sloane, dated at Paris

Reference number: EL/G2/16

Date: 04 May 1732

Description

Concerning the discovery of Pierre Seignette's 'Sal polychrestus Rupellensis' (potassium sodium tartate or Rochelle salt) and other salts eg salt of Kali, Glauber's salt
Printed in 'Philosophical Transactions', vol 39, no 436, p 37

Reference number
EL/G2/16
Earliest possible date
04 May 1732
Page extent
5 pages
Format
Manuscript

Creator name

Claude Joseph Geoffroy

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Citation

Claude Joseph Geoffroy, Extract of a letter, from Monsieur Geoffroy [Claude Joseph] to Hans Sloane, dated at Paris, 04 May 1732, EL/G2/16, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/el_g2_16/extract-of-a-letter-from-monsieur-geoffroy-claude-joseph-to-hans-sloane-dated-at-paris, accessed on 15 August 2026

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  • Early Letters

    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.

    Dates: 1613 - 1740

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