Credit: ©The Royal Society
    Image number: RS.18011

    Hygrometer

    Date
    1688
    Creator
    Unknown, Engraver
    Object type
    Material
    Technique
    Dimensions
    height (page): 172mm
    width (page): 135mm
    Subject
    Content object
    Description
    View of a hygrometer, here referred to as a notiometra, in an outdoor, mountainous setting. A dial is visible on the left leg [as viewed] showing a nonlinear scale, and a piece of string is suspended in between the legs.

    Plate 27 from a German translation of Joachim d’Alence’s Tractatus de barometris… (Ludwig Bourgeat, Mainz, 1688), an early account of meteorological instruments including barometers, thermometers and hygrometers.

    Joachim d’Alence (16..-1707) French astronomer and physician was not a Fellow of the Royal Society.
    Associated place
    <The World>
       > Europe
          > France
    <The World>
       > Europe
          > Germany
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