AROUND THE WORLD BY TELEPHONE 543 



ent times of the day. At New York the time was 9:30 in the morning 

 and at San Francisco 6:30 in the morning. Between San Francisco 

 and Java the voice went from April 25th into April 26th and back 

 reaching Java at 10:00 o'clock at night on April 25. At Amsterdam 

 the time was 2 :50 in the afternoon and at London 2 :30 in the afternoon. 

 A total of about 980 vacuum tubes were used and of this number 515 

 weie in the United States. In all, the above vacuum tubes produced a 

 gain of about 2000 decibels in each direction of transmission. The 

 total delay in the transmission of speech over this circuit was about one 

 quarter of a second. While this was not particularly noticeable to the 

 talkers at the two ends of the circuit, at one time during the conversa- 

 tions telephone receivers located near one of the talkers were connected 

 to the opposite end of the circuit. With this arrangement the delay 

 between the speech from the talker as heard by the short cut and that as 

 heard over the circuit was very marked. It is of interest to note that 

 while the land line links accounted for only about 15 per cent of the 

 total distance traversed by the voice, they were responsible for about 

 55 per cent of the delay. 



