On a 



New Electric Current Breaker 



(Preliminary Notice) 



by 



Kr. Birkeland 



Videnskabsselskabcts SkridiT, M.-N. Kl, 1!)02. No. 11 



--^IrG-^ 



Christiania 



In commission by Jacob D\'bwai:l 



Printed by A. W. Broggcr 



1902 



