Henry, Joseph,  1797-1878. <br/><br/>
Contributions to electricty and magnetism ... 
No. IV  <Extracted from the tanscactions of the American Philosophical Society, vol. 8th> 
 - Philadelphia,  Printed by W.S. Young,  1841. 
 - 35 p.  illus.  29 x 23 cm. 
<br/><br/>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. 
<br/><br/>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. 
<br/><br/><label>LCCN: </label>ca 05000828  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Induction (Electricity)
<br/><br/><label>LC Class. No.: </label>T7  / .J73