Scientist gives lecture

#Picture Number ST177

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Victorian illustration to download showing a picture of Professor John Tyndall giving a lecture on magnetism and diamagnetism to a large audience at the Royal Institution, 1870. Scientific apparatus covers his desk. John Tyndall (1820-93) was Professor of Physics at the Royal Institution 1853-87, and spent much time disseminating science to the general public, giving hundreds of public lectures such as this one.