AUTOMATIC AND MULTIPLEX TELEGRAPHY. 13 



one-eighth of the postal business at command, more than double the estimated number of 

 500,000 messages are immediately available. 



The argument thus confirms the correctness of the quotation at the commencement of 

 this paper, namely, " That the most successful telegraph companies of the future will 

 abandon the present system of a multiplicity of wires in favour of automatic and multiplex 

 apparatus." 



