John Tyndall demonstrating a fog-horn to Queen Victoria and her entourage. Wood engraving by T. B. Wirgman, c.1876.

    Reference:
    38589i
    Catalogue details

    Licence: Public Domain Mark

    Credit: John Tyndall demonstrating a fog-horn to Queen Victoria and her entourage. Wood engraving by T. B. Wirgman, c.1876. Wellcome Collection. Source: Wellcome Collection.

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