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Candle-power, indefinite, in municipal contracts. 246 to 252.

of arc lamps. 27 to 29.
Candy factories, electric heat in. 305, 306.
Capital invested in central stations. 13, 14.
Carbone lamp, development of. 58, 59.
Central-station employees, appreciation of. 41 to 45.

practice, European and American. 14 to 24. Central stations, capital invested in. 13, 14.

earnings of German. 16, 17.

new business, growth of. 12, 13.
Change from alternating to direct-current supply. 22, 23.
Charging electric automobiles, sale of current for. 496 to 507.
Coals, American, value of, in producer plants. 377.
Commercial development of the mercury rectifier. 206 to 212.
Commercial Programme (see Volume II). 542, Volume I.
Commission, Lighting (New York), action of. 72.
Committee on amendments to freight classification of electrical apparatus

and goods. 424 to 427.
on electric heating and cooking. 507, 508.
on fire hazard of electricity. 108 to 142.
on industrial insurance, rewards and pensions. Appendix A, 39 to 92.
on membership. 490 to 495.
on meters, appointment of. 542.
on protection from lightning and other static disturbances. 288 to 297.
on publicity and popular education. Appendix A, 93 to 95.
on public policy. Appendix A, 5 to 17.
on public policy, presentation of report of. 517.
on public regulation and control. Appendix A, 27 to 30.
on relations between manufacturers and central stations. 516.
on relations with local associations. 508, 511.
on specifications for street lighting, report of. 258 to 287.
on standard rules for electrical construction and operation. 540 to 542.
on taxation and franchises. Appendix A, 35 to 38.
on the grounding of alternating-current circuits. 511 to 515.
on the London sliding scale as applied to electricity. Appendix A,

31 to 34. Condensers, synchronous, for power-factor correction. 85 to 97. Contracts, municipal, indefinite candle-power in. 246 to 252.

municipal, indefinite obligations in. 254 to 257. Cooking and heating, electric, general. 63 to 65.

use of electric grill. 65. Curtis turbines, recent developments in. 428 to 443. Cutting metal with electric arc. 65.

D
Diesel engines, operation of two 120-hp. 23, 24.
Dynamos, three-wire versus balancers. 444 to 461.

E

Earnings, proper, for plants.

16, 17. Effect of frosting incandescent lamps. 462 to 483.

Efficiency of various methods of illumination. 314 to 325.
Electric heating without special concessions from the central station.

299 to 312.
lighting in Germany. Appendix B, 3 to 15.
Electrochemical balancer. 451.
Embossing presses, electrically-heated.

301, 302. Employees, central-station, appreciation of. 41 to 45.

reward system for. 44, 45.
Engine, gas, future of the. 374 to 380.
Engines, Diesel, operation of. 23, 24.

gas, and producers for central stations. 404 to 423.
gas, European practice. 18.
producer gas, for central stations. 343 to 374.
reciprocating versus turbines. 434 to 436.
steam, comparison with producer gas. 404 to 410.

F

Fire hazard of electricity, report of committee on.

108 to 142. Flaming arc. See Lamps. Flat-irons, electric, sale and operation of. 64, 300. Flicker, frequency of, at which variations in illumination vanish. 327

to 342. Floor-polisher, electric. 68, 69. Franchises and taxes, report of committee on. Appendix A, 35 to 38.

rate regulation. 24 to 29.
Freight classification of electrical apparatus. 424 to 427.
Frosting, effect of, on incandescent lamps. 462 to 483.
Fuses for high-tension power circuits. 36, 37.

G

Gas arcs recommended for factory lighting. 487, 488.
Gas, comparison of consumption by cities. 19.

engine, future of. 374 to 380.
engine practice in Europe. 18.
engines and producers for central stations. 404 to 423.
engines for central stations. 343 to 373.

superiority of electricity over. Appendix B, 3.
GEM lamps. 47.
Generators damaged by lightning. 292.

for use on vertical turbines. 437.
Glue-pots, electric, for bookbinderies. 302.
Grounding of alternating-current circuits. 511 to 515.
Ground wires, overhead, for protection from lightning. 292, 293.

H Heating and cooking, electric, general progress. 63 to 65. and cooking, electric, report of committee on.

507, 508. and lighting plant, Toledo, Ohio. and power circuit for residences. 309 to 311. electric, without special concessions. 299 to 312.

20.

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Illuminating engineering, growing importance of. 37, 38.
Illumination, efficiency of various methods of. 314 to 325.
Incandescent lamps. See Lamps.
Insurance and kindred matters, report on. 102 to 107

for central stations. 69.
industrial. Appendix A, 39 to 92.

L

58, 59.

Lamp renewals, European practice. 18.
Lamps. See also Moore tube.

arc, and high-efficiency electrodes, new developments in. 237 to 245.
arc, Carbone, development of.
arc, flame, recent developments in. Appendix B, 13 to 15.
arc, flame, types of. 55 to 58.
arc, improvements in. 55 to 61.
arc, operated from mercury rectifiers. 209 to 212.
arc, rating of. 29.
arc, resolution as to energy test of. 297, 298.
arc, shortage in candle-power. 27 to 29.
arc, status of small current. Appendix B, 12, 13.
Bastian. 61.
Blondel and Bremer. 56, 57.
GEM. 47
Helion. 47, 48.
improvements in Germany. Appendix B, 6 to 9.
incandescent and arc, European practice regarding. 18.
incandescent, British standard. 40, 41.
incandescent, causes of decreased candle-power. 39.
incandescent, changing standards. 49.
incandescent, determination of age of. 38, 39.
incandescent, effect of frosting on. 462 to 483.
incandescent, effect of voltage changes. 51, 52.
incandescent, for high pressures. Appendix B, 9 to 12.
incandescent, improvements in. 46 to 55.
incandescent, new filaments. 52 to 55.
incandescent, standardization of. 38.
magnetite. 57, 58.
mercury arc, types of. 59 to 61.
Nernst, use of. 62.
tantalum. 49, 50.
titanium. 57, 58.
tungsten. 50 to 52.

zirconium. 53 to 55.
Legal justification for differential rates. 189 to 205.
Lighting and power rates, European. 15.

Commission (New York), action of. 72.
municipal, indefinite candle-power in contracts for. 246 to 252.
street, arches for. 30 to 32.
street, candle-power rating of. 27 to 29.
street, in Columbus. 31.
street, in Denver. 30.

Lighting, street, in Los Angeles. 32, 33.

street, in Minneapolis and Cleveland. 33. street, specifications for. 258 to 287.

versus illumination. 39, 40.
Lightning and lightning protection. 381 to 401.

and other static disturbances, protection from. 288 to 297.
arresters, recent developments in. 213 to 234.
arresters, types of. 395 to 401.
danger from, on long-distance transmissions. 294, 297.
damage to generators by. 292.
damage to meters by. 291.
damage to transformers by. 290, 291.
in electric circuits. 389 to 394.
overhead ground wires for protection from. 292, 293.

protection of electric circuits. 394 to 401.
London sliding scale, as applied to electricity. Appendix A, 31 to 34.
Lynchburg (Va.) municipal plant. 20.

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M
Magnetite electrodes for high-efficiency arc lamps. 237 to 245.

lamps. 57, 58.
Mercury-arc lamps. See Lamps.

arc rectifiers for charging electric automobiles. 507.

rectifiers, commercial development of. 206 to 212. Meters, appointment of committee on. 542.

damaged by lightning. 291.
Methods of charging for electric motive power. 520 to 540.
Moore tube, development of. 61, 62.
Motor business, increase in. 63.
Motors, individual, when to use. 485.

rental and loan of. 484.
Multi-gap lightning arresters. 396 to 398.
Municipal contracts, indefinite candle-power in. 246 to 252.

contracts, indefinite obligations in. 254 to 257.
ownership, report of sub-committee on. Appendix A, 20 to 26.

plant, Lynchburg, Va.
Municipality, power to regulate rates. 24, 25.

recovering for light not furnished. 27 to 29. suing for free lighting. 25, 26.

20.

N

New business (see Commercial Programme, Volume II).
New business and soliciting costs. 45, 46.

growth of. 12, 13. New developments in arc lamps and high-efficiency electrodes. 237 to 245. Nominating committee, appointment of. 401.

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Oil as fuel, Effingham, Ill. 23, 24.

engines, Diesel. 23, 24. Operating cost, gas versus steam plant. 415 to 420.

Opportunities for the sale of current for charging electric automobiles.

496 to 507

P

Pensions. Appendix A, 39 to 92.
Policy, public, presentation of report of committee on. 517

public, report of committee on. Appendix A, 5 to 17.
Power and lighting rates, European. 15.

business, increase in. 63.
business obtained by Toledo (Ohio) plant. 21, 22,
distribution, change from direct to alternating. 22, 23.

electric, experience with. 484 to 488.
Power-factor correction by synchronous motors. 79 to 97.

effect of low. 79 to 82.
low, effect on regulation. 81 to 84.

low, effect on revenue. 80, 81.
Power, motive, methods of charging for. 520 to 540.
Presentation of gavel to President Williams. 516, 517.
President's address. 5 to 10.
Producers and gas engines for central stations. 404 to 423.
Progress, report of committee on. 12 to 72.
Protection of electric circuits from lightning. 394 to 401.
Protective apparatus, recent developments in. 213 to 234.
Publicity and popular education. Appendix A, 93 to 95.
Public policy, report on. Appendix A, 5 to 17.

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Q
Question Box. See Volume II.
Question Box, presentation of. 97 to 102.

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R

Radiators, luminous, use of. 65.
Rates, competition of electric with gas. Appendix B, 3 to 6.

1

for light and power in Europe. 15.
of charging for motive power. 520 to 540.
legal justification for differential. 189 to 205.

regulations and franchises. 24 to 29.
Rating, candle-power, in street lighting. 27 to 29.
Recent developments in protective apparatus. 213 to 234.

developments in steam turbines. 428 to 443.
Rectifiers, mercury, commercial development of. 206 to 212.

mercury, efficiency of. 209.

mercury, for operating arc lamps. 209 to 212.
Refrigerating plants, electrically-driven. 66 to 68.
Regulation of rates by municipality. 24, 25.

voltage, effect of low power-factor on. 81 to 84.
Report of committee on amendments to freight classification of electrical

apparatus and goods. 424 to 427.
of committee on electric heating and cooking. 507, 508.
of committee on membership. 490 to 495.

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