127 



verters used in England had nothing like 

 that efficiency. The smaller converters 

 used by Messrs. Ganz and Co. certainly 

 had nothing like it ; they guaranteed an 

 efficiency of 88 per cent. The machines 

 exhibited, the Lowrie converter, the 



Fig. 28 



Current Output. Grosvenor Gallery. 



Kapp converter, and still more the Fer- 

 ranti, had all a high magnetic resistance, 

 which he was inclined to thiuk would be 

 unfavorable. He knew that tests had 

 been made with a Kapp converter by 

 Professor Ayrton, but in totally differ- 



