On the Production of Transient Electric Currents. 135 





Ballistic 



Circular 





throw. 



magnetisation. 



"Reversed, A to B ... . 



.* + 8 . 



+ 4 



B „ A 



- 8 



-4 



Broke A 



- 9 



-13 



Made B 



+ 17 



+ 4 



Broke B 



+ 9 



+ 13 



Made A 



-17 



- 4 



Here the circular magnetisation was greater in the ratio of 13 to 4 

 when the differential effect of torsional stress was exerted on the 

 (comparatively small) amount of residual than on the (comparatively 

 large) amount of temporary longitudinal magnetism. 



