A TREATISE 



ON 



ELECTRICITY 



AND 



MAGNETISM 



BY 



E. MASCART, 



PROFESSOR IN THE COLLEGE DE FRANCE, AND DIRECTOR OF THE CENTRAL 

 METEOROLOGICAL BUREAU; 



AND 



J. JOUBERT, 



PROFESSOR IN THE COLLEGE ROLLIN. 



LANSLAIED BY 



E. ATKlWOTMrffiB., F.C.S., 



PROFESSOR OF EXPERIMENTAL SCIENCE IN THE STAFF .COLLEGE. 



VOLUME I. 

 GENERAL PHENOMENA AND THEORY. 



LONDON: 



THOS. DE LA RUE AND CO. 



no, BUNHILL ROW. 



i883 



