Credit: ©The Royal Society
    Image number: RS.15760

    Observations of structures of gnat and horsefly stings, and an experiment with a lime tree

    Date
    24 August 1688
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    p13a
    Material
    Dimensions
    height (page): 181mm
    width (page): 143mm
    Subject
    Description
    11 figures in a letter from Antoni van Leeuwenhoek to the Royal Society. Another page with a set of 10 figures is also added to this letter. The original drawings are lost.

    Fig. 1: sting and sheath of the gnat
    Fig. 2: sheaths and stings of sting-carrying gnat (through magnifying glass)
    Fig. 3: part of sting, or second sheath
    Fig. 4: partial view of all the stings
    Fig. 5: two stings with barbed hooks
    Fig. 6: part of the two stings
    Fig. 7: point of sting through magnifying glass
    Fig. 8: same sting rotated
    Fig. 9: same sting rotated again
    Fig. 10: sting of large horsefly
    Fig. 11: experiment with a lime tree, to prove that its roots will become branches and its branches roots, when turning it upside down.
    Object history
    The letter and images are also printed in:
    Antoni van Leeuwenhoek, Natuurs verborgentheden ontdekt, zijnde een tweede vervolg der brieven (Delft: A. Voorstad, 1689), pp. 237-60.

    Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a Krooneveld, 1695), pp. 147-64.
    Related fellows
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Associated place
    <The World>
       > Europe
          > Netherlands
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