Credit: ©The Royal Society
    Image number: RS.15718

    Vessels in male sperm

    Date
    31 May 1678
    Creator
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Object type
    Archive reference number
    Manuscript page number
    p9a
    Material
    Dimensions
    height (page): 153mm
    width (page): 196mm
    Subject
    Description
    In a letter from Antoni van Leeuwenhoek to Nehemiah Grew.

    Observations of vessels in the male sperm of a dog. Drawn by Van Leeuwenhoek himself.
    Transcription
    en nademael ick de teeckenkonst niet en versta, soo wil ik echter hoopen, dat Uedele sal connen sien, hoe de vaaten, over en door malcanderen loppen.
    Transcribed by the Making Visible project
    Object history
    'For the benefit of the Royal Society I have made several drawings of the vessels in male sperm, four of which I am sending+ to you [...]. As I am not an expert at drawing, I hope you will be able+ to see how these vessels cross each other.' (Alle de brieven van Antoni van Leeuwenhoek, ed. by a committee of Dutch scientists, 17 vols [ongoing] (Amsterdam: Swets & Zeitlinger, 1939- ), II (1941), 354-79 (letter 39) (p. 365).)

    According to the text there should be eight figures. Only three figures (figs. 1, 3 and 4), ink-drawings sent by Leeuwenhoeck, have been preserved in the original. Figs. 1-4 give the vessels in the male semen; fig. 2 is printed in Phil. Trans. vol. 12, no. 142 (1678), opposite p. 1035. Figs. 5, 6 and 7 are fragments of bone. Two of these were printed in Phil. Trans. vol. 12, no. 140 (1678), p. 1002, viz. figs. 5 and 6 or 7. Which of the latter was represented cannot now be made out. Fig. 8 (a hair) is on p. 1004.

    Figs. A-D: woodcut figure of seminal vessels, in A. Leeuwenhoek, ‘De natis e semine genitali animalculis’, Phil. Trans. vol. 12, no. 142 (December 1678, January and February 1679), pp. 1040-46.
    Related fellows
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Nehemiah Grew (1641 - 1712, British) , Plant physiologist
    Associated place
    <The World>
       > Europe
          > Netherlands
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