120 MEMORIES OF MY LIFE 



same direction as itself. This process may be re- 

 peated on a third needle of considerably larger size 

 and greater strength ; and if desired, on a fourth. 

 The force required to keep all this going is inde- 

 pendent of that which moves the first needle, and is 

 applied by a reciprocating beam worked by ordinary 

 power. The synchronising of the two stations is a 

 simple matter, no great precision being wanted in 

 order that the electric impulses should be delivered 

 to the first needle at the right times. Without going 

 further into this long bygone matter, I may say that 

 I printed what I had to tell in a pamphlet entitled 

 the Teletype (No. i in the text of my Memoirs in 

 the Appendix). The pamphlet was post-dated, after 

 the manner of some publishers, as being in June 1850. 

 It was really printed in 1849 ; I had left England for 

 my travels on April 5, 1850. The pamphlet had 

 long since gone into the limbo of the forgotten, so 

 it was a surprise to me, not many years ago, to meet 

 one of the most prominent electricians of the day, who 

 told me that he had seen and procured it for the 

 library of the Electrical Society. Moreover, he spoke 

 appreciatively of my youthful attempt. Requiescat in 

 pace. There was more in the pamphlet than is 

 described above. 



