A comparison between smallpox and cowpox pustules on the 12th and 13th days of the disease. Chromolithograph, 1896, after G. Kirtland.

    • Kirtland, George, active 1796-1815.
    Date:
    23 May 1896
    Reference:
    20182i

    Licence: Public Domain Mark

    Credit: A comparison between smallpox and cowpox pustules on the 12th and 13th days of the disease. Chromolithograph, 1896, after G. Kirtland. Wellcome Collection. Source: Wellcome Collection.

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