INDEX TO VOIMMI-: III. 



433 



ELECTRICAL UNIT. 



i to convey 1,000 horse-power 

 thirty milus, 203, 406; feasibility 

 of, lor, ; example of, 271 ; Hop- 

 kinson,J., on, 321) ;for locomotion, 

 :;:;! ; 1 osses in, 270, 329,330 ; from 

 natural sources, 376 ; objections 

 to, 201 ; return conductor ivquiivl 

 for, 329; suggested by Volta, 

 Ritchie, Jacobi, Page, and Hjorth, 

 405 ; working, best conditions of, 

 405. 



Electrical unit committee of British 

 Association, 321. 



Electrical units of Electrical Cpn- 

 gress, 411 ; named after leading 



. physicists, 322. 



Electricity, advantages of, 181 ; 

 applications of, 288 ; (a-ppHcaUt- 

 to agriculture and horticulture, 



288 ; for high temperature, effects, 



289 ; upon tramways and small 

 roads, 270) ; in conductors, 326 ; 

 in collieries, Preece,W. H., on, 237 ; 

 direction of, business of civil 

 engineer, 391 ; energy, transmis- 

 sion of, by, 269, 326 ; (and gag 

 competition likely between, 379 ; 

 as heating agents, 243 ; for illu- 

 minating purposes, 269 ; letter to 

 the Times on, 237) ; for heating 

 purposes, 288 ; illustrations of, at 

 Paris Exhibition, 270; (inxtiilld- 

 tions, large, of conductors for, 375 ; 

 cost detailed, and total of, 375); in- 

 struments for measuring accuracy 

 of, 321 ; International Congress of, 

 266 ; laws of, clearly established, 

 321 ; for lighting purposes, 181 ; 

 losses necessary in application of. 

 288 ; measurement of " practical " 

 and " absolute system " of, 322 ; 

 for metallurgical purposes, 181 ; 

 modern uses of, 178 ; Paris Exhibi- 

 tion of, 281 ; quantitative effects 

 of, 359. 391 ; reduction of, from 

 high to low tension with secondary 

 batteries, 376 ; for telegraphic and 



VOL. III. 



ENGINE. 



telephonic purposes, 181 ; unit 

 measures of, 321 ; velocity of, 326. 



Electro-culture combined with other 

 objects economical, 288. 



Electro-gilding, Elkington, G., by, 

 282; Himly, Prof. C., first im- 

 pulse in, 282 ; Siemens, Werner, 

 and C. W., connection with, 282. 



Electro-magnets, production of, 394. 



Electromagnetic telegraphy founded 

 by Oersted, Ampere, Faraday and 

 Weber, 74. 



Electromagnetic units, system of, 

 323. 



Electro-motive force and gravity 

 compared, 30; diagrammatically 

 represented, 31. 



Elkington, G., application to electro- 

 plating of discoveries of Davy, 

 Faraday, and Jacobi, 281 ; Sie- 

 mens's, C. W., visit to, 282, 283. 



Ellison, of Paris Gas Works, experi- 

 ments by, 339. 



Elster's photometer, reference to, 

 122. 



Elswick gun factory, regenerative 

 gas furnace successfully applied 

 at, 158, 159. 



Employer's and workmen's interests 

 identical, 389. 



Energy, convertibility of, illustra- 

 tions of, 90 ; whence derived, 186 ; 

 kinetic, 185 ; manifestations of, 

 89 ; mechanical, waste of, 360 ; 

 personal waste of, 360 ; potential, 

 185 ; (researclu'x on, reference to 

 Carnot, 325 ; Clausius, 325 ; Grove, 

 325 ; Helmholtz, 325 ; Joule, 325 ; 

 Maxwell, 325 ; Mayer, 325 ; Ran- 

 kine, 325 ; Stokes, 325 ; Thomson, 

 325); (tr(itixmi.t.iHHi nf by rltvtri- 

 citij, 303 ; examples of, 363, 364) : 

 and work, examples of, 185. 



Engine, how to describe, 390 ; fuel, 

 consumption of in large and small 

 compared, 330 ; visual photograph 

 of, 390. 



F F 



