No. 376.-TELEPHONE SYSTEMS: REPORTS TO THE INTERSTATE COMMERCE COMMISSION AND TO THE FEDERAL COMMUNICATIONS COMMISSION NOTE.-Companies engaged in interstate business are required to report both as regards interstate and intrastate business. Prior to 1923 the classification of companies based on the amount of annual operating revenues was as follows: Class A, over $250,000; class B, $50,000 to $250,000; class C, $10,000 to $50,000. Effective Jan. 1, 1923, the classification was amended as follows: Class A, over $250,000; class B, $100,000 to $250,000; class C, $50,000 to $100,000; class D, $50,000 or less. A further change was made effective Jan. 1, 1933, as follows: Class A, over $100,000; class B, $50,000 to $100,000; class C, $50,000 or less. The companies below $50,000 are not covered in the table 1 Owing to revisions in the accounting classifications, data beginning with 1933 are not comparable with those for earlier years. Data not available. 3 Returns incomplete; data, however, represent great bulk of business. Sources: Interstate Commerce Commission, 1916 to 1933; Federal Communications Commission thereafter. No. 377.-WIRELESS TELEGRAPH SYSTEMS: SUMMARY OF STATISTICS NOTE.-1917 omitted owing to war conditions; 1932 data not available 831,500 795, 376 92,855 2,658, 091 2,830, 718 715, 675 690, 533 684,719 539, 072 813, 734 686, 312 681,480 4, 221 583 29, 221 22, 462 3,777, 538 55 2 $24, 829, 340 812, 866, 636 $5, 116, 264 $249, 435 $7,500, 937 $11,962, 704 881, 147, 512 $35, 751, 904 $17,711, 483 $19, 312, 823 $6,831, 530 $1,387, 342 $152, 430 $81, 147, 512 $38, 174, 134 $320, 961 $11, 436, 628 $17, 206, 630 $5,746, 973 $8, 262, 186 1,985 $2,558, 179 No. 378.-TELEGRAPH AND CABLE SYSTEMS: REPORTS TO THE INTERSTATE COMMERCE COMMISSION AND TO THE FEDERAL COMMUNICATIONS COMMISSION [All money figures in thousands of dollars] Source: Interstate Commerce Commission, 1916 to 1933; Federal Communications Commission thereafter. No. 379.-LAND AND OCEAN-CABLE TELEGRAPH SYSTEMS COMBINED: EQUIPMENT, TRAFFIC, Employees, and FINANCES 1 Exclusive of pole line owned and operated wholly by railway companies. Exclusive of wire owned and operated wholly by railway companies, as follows: Reported by allrailway companies, 1912, 314,329 miles; reported by railway companies having annual operating revenues of $1,000,000 or more, 1917, 344,110 miles; 1922, 285,002 miles; 1927, 333,898 miles; 1932, 337,059 miles. No data for 1902. Figures not available. The number of employees includes 7,516 messengers whose wages are not included in figure for salaries and wages. Source: Bureau of the Census, Department of Commerce. No. 380.-LAND AND OCEAN-CABLE TELEGRAPH SYSTEMS: EQUIPMENT, TRAFFIC, EMPLOYEES, AND FINANCES 1 Exclusive of pole line owned and operated wholly by railway companies. Exclusive of wire owned and operated wholly by railway companies having annual operating revenues of $1,000,000 or more: 1917, 344,110 miles; 1922, 285,002 miles; 1927, 333,898 miles; 1932, 337,059 miles. In addition, 31,102,577 lettergrams, not distributed according to rate, were reported. Not including land-line system plant and equipment to the value of $20,000,000 reported as cablesystem plant and equipment for 1917. Includes land-line-system plant and equipment to the value of $20,000,000. No. 381.-WESTERN UNION TELEGRAPH CO.: MILEAGE OF LINES AND WIRES, NUMBER OF OFFICES, AND FINANCES Bureau of the Census, Department of Commerce; table 381, Western Union Corporate and Federal, • Deficit. [Data in this section relate to continental United States] No. 382.-ANNUAL SUPPLY OF ENERGY FROM MINERAL FUELS AND WATER POWER IN The united sTATES NOTE-The figures, except coal equivalent, represent the equivalent of the heating power of the classes of fuel in trillions of British thermal units. Data represent production, except those for oil imports, and take no account of exports, imports, or changes in stocks 1 The fuel equivalent for water power is calculated from the reported horsepower of installed water wheels. Prior to 1890 data were unsatisfactory, but estimates are included in the total. Calculated at 26,200,000 British thermal units per ton. 1 Based on the amount of coal displaced by gas, as estimated by the gas companies at the time. • Preliminary. No. 383. ELECTRICITY PROduced, consUMPTION OF fuel, and CAPACITY OF GENERATORS IN PUBLIC-UTILITY POWER PLANTS NOTE-Data prior to 1919 are totals for central stations and electric railways as reported by Bureau of the Census; thereafter, they are estimated totals for all plants, based on returns from about 3,500 plants in 1919 to about 3,800 in 1934, each producing 10,000 kilowatt-hours or more per month, engaged in public service, including central stations, electric railways, steam railroads generating electricity for traction, and certain other plants. The capacity of plants reporting is about 95 percent of that of all plants Sources: Table 382, Bureau of Mines, Department of the Interior; table 383, 1902 and 1912, Bureau of the Census, Department of Commerce; thereafter, Geological Survey, Department of the Interior. 9,940 102, 601 37, 163 I. 47 36,038 33, 555 10,379 1. 45 35, 874 ■ Of 42 gallons. |