A 



TEXT-BOOK OF PHYSICS 



BY 



J. H. POYNTING, Sc.D., F.R.S. 



HON. Sc.D. VICTORIA UNIVERSITY 



LATE FELLOW OF TRINITY COLLEGE, CAMBRIDGE ; MASON PROFESSOR 

 OF PHYSICS IN THE UNIVERSITY OF BIRMINGHAM 



AND 



SIR J. J. THOMSON, O.M., M.A., F.R.S. 



FELLOW OF TRINITY COLLEGE, CAMBRIDGE ; CAVENDISH PROFESSOR OF 



EXPERIMENTAL PHYSICS IN THE UNIVERSITY OF CAMBRIDGE ; 



PROFESSOR OF NATURAL PHILOSOPHY AT THE 



ROYAL INSTITUTION 



ELECTRICITY AND MAGNETISM 



PARTS I AND II 

 STATIC ELECTRICITY AND MAGNETISM 



WITH ILLUSTRATIONS 



LONDON 



CHARLES GRIFFIN AND COMPANY LIMITED 

 PHILADELPHIA : J. B. LIPPINCOTT COMPANY 



1914 



