Credit: ©The Royal Society
    Image number: RS.16868

    A thermometer

    Date
    21 April 1700
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p31
    Material
    Dimensions
    height (page): 242mm
    width (page): 177mm
    Subject
    Content object
    Description
    Figure of a thermometer for measuring the coldness of mixtures of different salts. The paper, which was an extract from Etienne Geoffroy's presentation at the Royal Academy of Sciences in Paris (21 April 1700), was read to a meeting of the Royal Society on 11 December 1700, and published in Philosophical Transactions of the Royal Society, vol. 22, no. 274 (1701), pp. 951-62.
    Object history
    11 December 1700, 'There was read a Paper of Mr Geoffry, being several Experiments tried by him, to shew the Cold coming from the mixture of several sorts of salts' (JBO/10/206).

    E. F. Geoffroy, ‘Observations Upon the Dissolutions and Fermentations Which We May Call Cold, because They are Accompanied with a Coolness of the Liquors into Which They Pass. And of a New Thermometer’, Phil. Trans., vol. 22, no. 274 (1701), pp. 951-62 (explanation of instrument at p. 961).
    Related fellows
    Etienne Francois Geoffroy (1672 - 1731, French) , Physician
    Associated place
    <The World>
       > Europe
          > France
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