THREE ELECTRICAL ACHIEVEMENTS 193 



perhaps new and more wonderful inventions, perhaps the very 

 secret of electricity itself. Mr. Hewitt is still busily engaged 

 in experimenting along these lines, both in the realm of ab- 

 stract science and in that of practical invention. He is too 

 careful a scientist, however, to speak much of the future, but 

 those who are most famihar with his methods of work predict 

 that the three inventions he has already announced are only 

 forerunners of many other discoveries. 



Vol. 7—13 



