649 



Tlie smaller the purf of tlie spectriini he uses, the larger the part 

 which remains for others. 



Owing to the small decrement of the galvanometer a wireless 

 installation may be restricted to using a smaller part of the spectrum 

 than heretofore, with the result that it will be possible to increase 

 the number of simultaneously working installations. This increase 

 is badly needed, so we may expect on good grounds, that the gal- 

 vanometer will be capable of rendering a service to radio commu- 

 nication in general. 



We do not finish this [taper without rendering our tanks to the 

 many persons who have been ready to help us with our work. 

 Especially we wish to express our gratitude for the interest and the 

 support, which we have received from Mr. Th. B. Pleyte wo was 

 at that time our Colonial Minister. 



