ELECTRIC ARCS 



EXPERIMENTS UPON ARCS BETWEEN 



DIFFERENT ELECTRODES IN VARIOUS 



ENVIRONMENTS AND THEIR 



EXPLANATION 



BY 



CLEMENT D. CHILD, PH.D. 



PROFESSOR OF PHYSICS AT COLGATE UNIVERSITY 



58 ILLUSTRATIONS 



NEW YORK 



D. VAN NOSTRAND COMPANY 



25 PARK PLACE 

 1913 



