RECENT ADVANCES IN WIRELESS TELEGRAPHY. 145 



a recent memorable occasion at Glasgow University, Lord Kelvin 

 publicly stated that he not merely believed that messages could be 

 transmitted across the Atlantic, but that some day it would be pos- 

 sible to send messages to the other side of the globe. Apart from the 

 practical and economical possibilities of this step, when realized, the 

 transmission of messages to the Antipodes would open up the possi- 

 bility of carrying out tests of very great scientific interest. For 

 example, if transmission to the Antipodes were possible, the energj^ 

 ought to go over or travel round all parts of the globe from one 

 station to the other, and perhaps concentrate at the Antipodes, and 

 in this way it might perhaps be possible for messages to be sent to 

 such distant lands by means of a very small amount of electrical 

 energy, and, therefore, at a correspondingly small expense. 



SM 190G 10 



