Henry, Joseph 1797-1878 creator text pau Philadelphia Printed by W.S. Young 1841 monographic eng

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35 p. illus. 29 x 23 cm. On the induction produced at the moment of the beginning of a galvanic current.--On apparently two kinds of electro-dynamic induction.--Theoretical considerations relating to the phenomena described in this and the preceding communications. No. IV <Extracted from the tanscactions of the American Philosophical Society, vol. 8th> With : Description and analysis of a variety of hatchetine, found in Urpeth colliery, near Newcastle / Jas. F. W. Johnston. Newcastle : Printed by T. and J. Hodgson, 1837?] Bound together subsequent to publication. DLC Induction (Electricity) T7 .J73 ca 05000828 DLC 760114 20260227111041.0 ca 05000828