THE ELEMENTS 



OF 



ELECTRICAL ENGINEERING 



A TEXT BOOK FOR 

 TECHNICAL SCHOOLS AND COLLEGES 



BY 



WILLIAM SUDDARDS FRANKLIN 



PROFESSOR OF PHYSICS IN LEHIGH UNIVERSITY 

 AND 



WILLIAM ESTY 



PBOFBSSOR OF ELECTRICAL ENGINEERING IN LEHIGH UNIVERSITY 



VOLUME I. 



DIRECT CURRENT MACHINES 

 ELECTRIC DISTRIBUTION AND LIGHTING 



THIRD EDITION, EIGHTH THOUSAND 



|eto gorfc 

 THE MACMILLAN COMPANY 



LONDON: MACMILLAN & CO., LTD. 

 1907 



All rights reserved 



