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

1 print : wood engraving ; image 14.9 x 22.4 cm

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