Credit: ©The Royal Society
    Image number: RS.15767

    Construction of an air pump and observations on a grain of wheat

    Date
    22 April 1692
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p13
    Material
    Dimensions
    height (page): 198mm
    width (page): 180mm
    Subject
    Description
    Letter from Antoni van Leeuwenhoek to Richard Waller.

    Fig. 1: a prepared glass tube
    Fig. 2: copper wire with silk thread wrapped around the notches at one end
    Fig. 3: a little part of outermost bark or membrane of grain of wheat
    Fig. 4: a second little bit of bark or membrane.
    Object history
    Letter and images were published in:

    A. van Leeuwenhoek, Derde Vervolg der Brieven (Delft: H. van Kroonevelt, 1693), pp. 434-53.

    A. van Leeuwenhoek, Arcana Naturae Detecta (Delft: H. a Krooneveld, 1695), pp. 285-97.

    In relation to the original drawing, figs 3 and 4 have changed placed in the engraving in Leeuwenhoek's publications.
    Related fellows
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Richard Waller (1660 - 1715, British) , Naturalist
    Associated place
    <The World>
       > Europe
          > Netherlands
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