INDEX TO VOLUME III. 



REGNAULT. 



. 106 ; necessity for, 190 ; reversing 

 valves, 191 ; Stirling's, J., use of, 

 190 ; temperature, theoretical and 

 practical limit of, 195 ; use of, 

 to store heat that cannot imme- 

 diately be used, 98, 99. 



Regnault, reference to, 210. 



Reheating iron, fuel per ton used, 98. 



Reid's pressure tanks, 16. 



Reiss, telephone shadowed forth by, 

 284. 



Resistance boxes, stoppering of, 86. 



Resistance of conductor measurable 

 as velocity, 324 ; electrical mer- 

 cury standard recommended for 

 reproduction, 322. 



Reuleaux's kinematic apparatus, 

 Kennedy on, 113. 



Richards's steam-engine indicator, 

 reference to, 120. 



Ritchie, electric transmission of 

 power suggested by, 405. 



Roberts, Prof., on soot hanging over 



. London, 338. 



Ronalds, Sir F., library bequeathed 

 to Society of Telegraph Engineers 

 by, 167. 



Royal Commission on coal, inquiries 

 of, 62 ; on technical education, 

 387. 



Royal Society, science formerly cul- 

 tivated alone by, 159 ; science, 

 general principles of, considered 

 by, 65. 



Ruhmkorff coil, electrical discharge 

 by, 354. 



Rumf ord, heat and mechanical force, 

 on connection between, 183 ; photo- 

 meter of, reference to, 122. 



Russell, J. S., Rotunda at Vienna 

 Exhibition designed by, 415; 

 technical education, work on, 53. 



Rusting of iron and steel, 151 ; pro- 

 tection against, by paint, oil, and 

 galvanizing, 151. 



SCIENCE. 



SABINE, R., on dynamo-electric prin- 

 ciple, publication of, priority of, 

 165. 



Sainte C. Deville, on combustion, 

 reference to, 332. 



St. Gothard tunnel, completion of, 

 349. 



Saturated steam, condensation and 

 re-evaporation of, in cylinder, 56. 



Savery's steam-engine, 112. 



Savoy Theatre, electric lighting at, 

 373. 



Schilling telegraph invention, re- 

 ference to, 74; 



Schneider, E. and H., Le Creusot 

 founded and extended by, 213, 217, 

 218. 



SchOnbein, gun-cotton, discovery of 

 by, 351. 



School of Mines, reference to, 212. 



Schoolmasters, education of, 234. 



Schwendler, L., duplicate telegraph, 

 application by, of Wheatstone 

 bridge to, 168. 



Science, abstract and applied, de- 

 velopment of, 366 ; application 

 of, separate institutions brought 

 into existence by, 159 (and Arts 

 Schools, development of, 231 ; 

 under Government aid, 234) ; 

 branches, new, of, always spring- 

 ing up, 235 ; high priests of, 319 ; 

 and industry, 273 ; intimate and 

 useful knowledge of, obtained by 

 actual experiments, 386 ; language 

 of its own, 85 ; modern tree of, 

 320 ; progress of, due to mechanical 

 inventions. 112 ; pure and applied 

 barrier between no longer exist- 

 ing, 113 ; pure, former cultivation 

 of slight, 318 ; (teaching, labora- 

 tories for, necessity of, 277 ; 

 principles, thorough knowledge of, 

 requisite in, 277; research, original, 

 later phase of, 277 ; student should 

 assist in experiments in, 277 ; 

 usefulness of depends on teacher, 



