Credit: ©The Royal Society
    Image number: RS.15721

    Microscopical experiments with blood and milk

    Date
    1 June 1674
    Creator
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Object type
    Archive reference number
    Manuscript page number
    p1
    Material
    Dimensions
    height (page): 318mm
    width (page): 208mm
    Subject
    Description
    Figure in a letter from Antoni van Leeuwenhoek to Henry Oldenburg.

    Van Leeuwenhoek describes how he made various glass pipes, hollow from the inside. Cutting himself on his finger, he was able to capture some blood inside the glass pipes. He breaks a little part of the glass off (like C or D) and attaches that to his microscope so that he can investigate the blood. The narrower the glass pipe, the better he is able to distinguish the little particles in the blood.

    He writes that he made the glass pipes himself ('Ick heb mijn selven bereijt verscheijde soorte van glase pijpjens').
    Object history
    A. Leeuwenhoek, 'Microscopical observations from Leeuwenhoeck, concerning blood, milk, bones, the brain, spitle, and cuticula, &c.', Phil. Trans. vol. 9, no. 106 (September 1674), pp. 121-28. With six figures, the last two going with the letter of 6 July 1674, printed in the same issue at pp. 128-31. (Part of the letter in English.)
    Related fellows
    Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
    Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
    Associated place
    <The World>
       > Europe
          > Netherlands
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