146 



INDEX 



Telewriter, n 



Thorne-Baker telectrograph, 88 

 Transatlantic possibilities, 60 

 Tucker, Mr. A. H., operating 

 Korn's telautograph ; photo- 

 graph, see Frontispiece 

 Typewriting, transmission of, 



w. 



WAVE-LENGTH, effect on inertia 



of selenium, 32 

 Wheatstone bridge, 30 



Belin's use 



of. 123 



Will, Herr, 48 

 Wipe-out current, 113 



BRADBURY, AGNEW, & co. LD., PRINTERS, LONDON AND TONBRIDGE. 



