PROF. Tyndall completed a short course of seven lectures at the Royal Institution, on Thursday, June 9th, upon “Electrical Phenomena and Theories,” which were made as interesting as all his lectures are, by the ingenuity and completeness of the experimental illustrations; in this particular case the apparatus of his distinguished predecessor, Faraday, being largely drawn up, in addition to considerable accessions of more recent date, many of them derived from the kind help of individuals who have made themselves high reputations in the various branches of Electrical Science. The scope of the Professor's demonstrations covered the entire range of Electrical and Magnetic Science, commencing with the phenomena of voltaic electricity, and passing through the various leading manifestations and peculiarities of electro-magnetism, magnetic force, frictional electricity, electro-chemistry, magneto-electricity, and, of course, electric telegraphy, and the relations of electric motive force to heat.
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Professor Tyndall's Lectures at the Royal Institution, on Electrical Phenomena and Theories. Nature 2, 243–244 (1870). https://doi.org/10.1038/002243a0