Contributions from the physical laborato
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George F. Barker
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Article
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1875
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Elsevier Science
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English
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Desiring to show to a large audience some delicate experiments in magneto-electric induction, in a recent lecture upon the Gramme machine, a new form of demonstration galvanometer was devised for the purpose, which has answered the object so welt that it seems desirable to make some permanent record