A scientist using a device for the dilution of emulsions after microbial use. Photograph, [ca. 1940].

    Date:
    1940
    Reference:
    562253i

    Licence: In copyright

    Credit: A scientist using a device for the dilution of emulsions after microbial use. Photograph, [ca. 1940]. Wellcome Collection. Source: Wellcome Collection.

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