TELEPHONES, TELEGRAPHS, AND RADIO 545 
to-shore and transoceanic operations of the company in recent years 
have been as follows: 
Service 
Ship-to-shore_ o.oo. 
Transoceanic........ ___.__ ______ "77" 
021 
1922 
1923 
$553, 300 | $630, 000 $738, 140 
2, 189,000 | 2,014,000! 3 19] 558 
1994 
1925 
$742, 345 | $735, 179 
3.358, 584 | 3. 418 179 
Source: Annual report of the Radio Corporation of America. 
Radio Broadcasting. 
Development of new apparatus for use in broadcasting continued, 
and the Presidential inauguration ceremonies were broadcast for the 
first time. While successful experiments were conducted in the field 
of international broadcasting for entertainment, this phase of broad- 
casting is not yet in regular operation. With this accomplishment 
in view, proposals are being carefully considered for increasing the 
power of sending stations, and a high-power experimental station 
has already been erected at Boundbrook, N. J., with a maximum 
power one hundred times greater than that heretofore used by the 
stations in New York and Washington. 
Any estimate of the sales of radio-receiving apparatus is almost 
impossible. © The receipts from such sales by the Radio Corporation 
for 1922 were $11,286,489; for 1923, $22,465,091; for 1924, $50.- 
747,202; for 1925, $46,251,785. 
Telephones. 
Fifty years ago the first complete sentence was transmitted by 
telephone. During 1925 more than 813,000 telephones were added 
bo the Bell system, bringing the total number interconnected in this 
system to 16,720,000, of which over 4,000,000 are owned by inde- 
pendent connecting companies. The United States operates over 61 
per cent of the world’s telephones, Europe being second with 28 per 
sent. More than 50,000.000 toll and eXchange connections were 
handled daily. 
The American Telephone & Telegraph Co. and associated com- 
panies reported an increase in wire mileage of almost 14 per cent 
during 1925, as compared with 15.6 per cent in 1924. Of this in- 
crease, 5,522,436 miles were in cable conductors, both aerial and 
anderground, and 57,485 in open wire, as compared with 5,148,000 
and 222,000, respectively, in 1924. At the end of 1925 approxi- 
mately 90 per cent of the total wire of 45,474,000 miles were in aerial 
and underground cable and 10 per cent in open wire. 
During the year 527,000 telephones operating through automatic 
exchanges "were added by the Bell system, bringing the total to 
1,496,000 or 1214 per cent of the entire number, as compared with 
8.7 per cent at the end of 1924. The toll cable from New York to