20 PROCEEDINGS OF THE CANADIAN INSTITUTE. 



NINTH MEETING. 



Ninth Meeting, 14th January, 1888, the President in the 

 chair. 



The meeting took the form of a conversazione, the whole 

 building being thrown open to visitors, and an exhibition of 

 views being given by the Photographic Section. During the 

 evening an exhibition of lantern slides by the oxy-hydrogen 

 light was given, the views shown being principally from 

 Switzerland. 



Mr. Hugh Neilson, Manager of the Bell Telephone Com- 

 pany, read a paper on " Recent Advances in Telegraphy and 

 Telephony." 



Ill telegraphing by the single wix-e system, he stated, not much 

 change had been made, except in the substitution of sound instru- 

 ments for tlie old paper register. Between large cities the duplex 

 and quadruplex extension system had been inti'oduced, by means of 

 which two and four messages could be transmitted simultaneously 

 through a single wire. The cables were now all made duplex. 

 Another advance yet to be made was the application of the Morse 

 system to cable telegraphy. An important innovation alluded to 

 was train telegraphy, a system by means of which messages could be 

 sent and received on board trains going at the rate of forty to fifty 

 miles an hour. This system was now in operation on the Lehigh 

 Valley railway. The lecturer concluded by a reference to the 

 wonderful development of the telephone system, and said that 

 Ontario, so far as its towns and villages were concerned, had the 

 best telephone service in the world. 



