43 2 



INDEX TO VOLUME III. 



ELECTRICAL MACHINES, 

 panics' applications for provisional 

 orders speculative, 371 ; cost of, 

 got over by dynamo-machine, 367 ; 

 difficulties in way of introduction 

 of, 367, 414 ; districts, objections 

 to large, 378 ; exhibitions, 369 ; ex- 

 pectations regarding, not realized, 



414 ; experiments on vegetation 

 and growth, 271 ; extended use 

 of, 414 ; at Fisheries Exhibition, 



415 ; and gas light compared as 

 to brilliancy, cost, &c., 200, 334, 

 335, 378 ; gas light not likely to 

 be superseded by, 373 ; goveru- 



'ment recognition of advantages 

 of, 334 ; heat one-tenth that of 

 gas light, 268 ; with holophote, 

 334 ; inconvenience of, 200 ; 

 (legislation, 370; bill of, 1882, 

 Bramwell's, Sir F., views on 

 reference to, 370, 371 ; controversy 

 regarding, 370 ; licenses under, 

 370,; pre-emption, right of, under, 

 370 ; provisional orders under, 

 370 ; select committee of House 

 of Commons on, 370) ; letters to 

 u Engineering" arL,\&2,\&Z,\f&,l$o, 

 219, 222 ; limited to large applica- 

 tions during present generation, 

 222 ; motive power, regularity of, 

 requisite for, 383 ; natural sources 

 of energy, worked by, 334 ; ob- 

 jections to, 334 ; at Paris Electrical 

 Exhibition, 285 ; plant more costly 

 than gas plant, 379 ; progress of 

 best insured, 383 ; public illu- 

 minant, 334 ; public interest in, 

 369 ; range of power of, 285 ; rays 

 effective in, 332; ultra-violet 

 rays, experiments with, 272 ; on 

 vegetation, effects of, 330 ; white- 

 ness of, 334. 



Electrical machines, conductors for, 

 202 ; electrical resistance of, 201 ; 

 working conditions of, 201. 



Electrical mains, 372. 



Electric measurement, 321 ; depends 



ELECTRICAL TRANSMISSION. 



on Ohm's law, 32 ; founded on 

 C. G. S. system, 418. 



Electric power, costly with use of 

 zinc, 198 ; required for (lighting 

 ordinary houses, 372 ; Savoy 

 Theatre, 373 ; street lamps, 373). 



Electric practice, problems in, be- 

 yond electrical theory, 319. 



Electric propulsion, advantages of. 

 409; at Lichterfelde, Paris, and 

 Zaukerode, 409 ; for tramways, 

 409 ; and underground electric 

 railway, 287. 



Electric railway, advantages over 

 horse and steam power, 331 ; 

 arrangements, different, of, 407 ; 

 at Bushmills, 331, 408 ; crossing 

 bye-roads, how effected, 408 ; ex- 

 tension of, 409 ; inclines on, 

 worked satisfactorily, 409 ; first 

 exhibited by Siemens, Werner, in 

 1879, 330, 407 ; on Lichterfelde 

 line, 407; at Paris Exhibition, 331, 

 408 ; power for, how produced, 

 408 ; working speed of, 408. 



Electrical resistance, conversion of, 

 into heat, 398 ; and friction of 

 liquid in tube compared, 31 ; 

 (unit of, 32, 33 ; B. A. derived 

 from Weber's, 33 ; several pro- 

 posed, 33 ; Siemens's, Werner, 

 mercury, 33 ; unit of undeter- 

 mined, 416). 



Electric Storage Co., batteries of, 

 403. 



Electric telegraph, advantages, 

 greatest, of, 77 ; applicability, 

 limit of, 77 ; beneficial influence 

 of, 267 ; historical review of, 74 ; 

 for railways, absolutely necessary, 

 267. 



Electrical transmission of energy, 

 270, 329, 363, 367, 391 ; to agricul- 

 ture, 330 ; case of demand and 

 supply, 371 ; conductor, reduction 

 of area of, with increased tension of 

 electricity, 376 ; copper conduc- 



