Show A WONDERFUL NEW INVENTION the Phon ophor a will carry messages Met many lafr different t ways way to be told that a telegraph ph wire which is busily transmitting a long me message age can at the same time be made to Q convey half a dozen other messages in opposite directions sounds like a fairy tale but that the thins thing has been done and is daily being done is attested upon the most respectable scientific authority the discovery which renders these astonishing results possible is due to C langdon davies who has for some years been engaged in rendering yen dering it practically workable and in in adapting it alike to telephonic nie and telegraphic use it is difficult to convey to the lay j mind says the chicago dispatch an accurate c te comprehension of a process so exceedingly eur technical but it way may be briefly said that sir mr langdon davies in the utilizes not the electric current but the noise caused by the induction the signals are transmitted by a series of inducted electric impulses and the success of the system is found in the ability of the inductive force to pass through insulations which electric currents cannot p penetrate penetrate ene A wire may be b lown blown down and in contact with the earth yet so long as it is not broken it will carry a message I 1 by means of the ono messages can be transmitted with extraordinary rapidity and there is practically no limit to the number of messages that can be sent simultaneously upon the same wire and as we have hinted mr langdon davies system is as useful telephonically as it is telegraphically A wire which is conveying electric signals can at the same time be used for telephonic conversation without either the message or the conversation suffering in the least for some considerable time past experiments peri ments in both directions have been proceeding with most gratifying results which are couched vouched ed for by such high authorities as prof 1 sylvanus thompson conrad cooke and latimer lati imer dark clark three of the principal railway companies have already adopted the and it must be obvious even to the unscientific mind that j telegraphy and telephony which is so vastly increasing the electricians ians power over the wires has before b it a very great feature the indeed increases almost to infinity the number of words that can be transmitted in a given time it is obvious therefore that it opens great possibilities in the way of cheapening the cost of telegrams so long longas as the number of words that could be carried by a wire in an hour was rigidly limited it was hopeless to look for any substantial reduction in the cost of telegraphing egra phing but the at once increases the capacity and speed of every wire to which it may be fitted |