TY - BOOK AU - Henry,Joseph TI - Contributions to electricty and magnetism .. AV - T7 .J73 PY - 1841/// CY - Philadelphia PB - Printed by W.S. Young KW - Induction (Electricity) N1 - 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; 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 ER -