Credit: ©The Royal Society
    Image number: RS.15810

    Observations of the whittish matter on Van Leeuwenhoek's tongue after a fever

    Date
    18 October 1707
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p9
    Material
    Dimensions
    height (page): 223mm
    width (page): 173mm
    Subject
    Description
    Six figures. Drawn by anonymous draftsman.

    Letter by Antoni van Leeuwenhoek to the Royal Society. Read at the meeting of 27 October 1708.

    Fig. 1: particles scraped from his own tongue after a fever. AB was connected to the tongue.
    Fig. 2: second particle from his tongue, with GH having been the connection to the tongue.
    Fig. 3: a third particle from his tongue.
    Fig. 4: more particles from the tongue, from which most branches are already rubbed off.
    Fig. 5 and 6: the scales that lay around and over the particles shown in figs 1-4.
    Object history
    19 November 1707, 'A letter was read from Mr Leewenhoek concerning the whiteness of the tongue in fevers and thrushes. He was thank'd' (JBO/11/125).

    A. Leeuwenhoek, ‘Concerning the whiteness on the tongue in fevers, etc.’, Phil. Trans., vol. 25, no. 312 (October, November and December 1707), pp. 2456-62, tab. 2, figs 1-6.
    Related fellows
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Associated place
    <The World>
       > Europe
          > Netherlands
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