Abstract
LONDON Royal Society, April 15.—“Dynamo-Electric Machines” By John Hopkinson, D. Sc., F.R. S., and Edward Hopkinson, D.Sc.
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Societies and Academies . Nature 34, 20–24 (1886). https://doi.org/10.1038/034020b0
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DOI: https://doi.org/10.1038/034020b0