440 



INDEX TO VOLUME III. 



INVENTIONS. 



Inventions, elaboration and intro- 

 duction of, difficulty of, 55 ; pro- 

 duced by non-scientific men, 232. 



Inventors, objections to national 

 rewards to, 54, 55. 



Iron, deposits of, in United States, 

 very extensive. 233 ; hardens if 

 containing over O2 per cent, of 

 carbon. 148 ; improved by method 

 and skill in application of new 

 processes, 363 ; physical change 

 of with small admixtures, 147 ; 

 rails case hardened v. steel rails, 

 150 ; welding, coal theoretically 

 and practically required in, 98, 

 193. 



Iron and steel at Paris Exhibition, 

 Akermann, Prof., on, 214 ; protec- 

 tion of, by metallic oxide, by 

 Barff's process, 152 ; United States, 

 experimental committee on, 147. 



Iron and Steel Institute, address of 

 Siemens. C. W., to. 124, 159, 160, 

 207 ; annual dinner of, Siemens, 

 C. W., remarks of, 215 ; cosmopo- 

 litan character of, 207 ; excursion 

 to Le Creusot, Siemens, C. W., re- 

 marks of, 217; influence of, on prac- 

 tical metallurgists, 229 ; investiga- 

 tion committees of, 125 ; meetings 

 abroad of, 208 ; members of, 228 ; 

 members, illustrious foreign, of, 

 207, 208 ; origin of, 124 ; papers 

 read and to be read at, 228 ; Paris 

 meeting, great success of, 229 ; pro- 

 gress of, 125 ; on progress/foreign. 

 in metallurgy, report of, 125 ; 

 resigning chair of, Siemens, C. W.. 

 remarks of, on, 227 ; vitality of. 

 228. 



Iron Trade Association, British, 125. 

 126. 



JACOB'S, F., suggestion, re tele- 

 phonic transmission, 328. 

 Jacobi, electric transmission of 



KINKEL. 



power suggested by, 405 ; law of 

 maximum efficiency, criticism of, 

 405. 



Jordan, iron ore resources of France. 

 214 ; steel, definition of, refer- 

 ence to, 147. 



Joule, dynamical theory of heat, 

 reference to, 106 ; energy, re- 

 searches on, reference to, 325 ; on 

 heat, dynamical measurement of, 

 121, 185, 321 ; heat, labours of, on, 

 88 ; heat, unit of, 245 ; on physical 

 forces, identity of, reference to, 

 184 ; thermo-dynamic law, dis- 

 covery of, 115. 



Joule, as electrical unit, defined in 

 C. G. S. units, 323. 



KARL, technical writings of, refer- 

 ence to, 126. 



Karoyle, gunpowder, method of ex- 

 plosion of, 351. 



Karsten, steel, definition of, refer- 

 ence to, 147; technological 

 writings of, 126. 



Kennedy, W., Eeuleaux's Kine- 

 matic apparatus, address on, refer- 

 ence to, 113 ; testing materials 

 under, at University College, 278. 



Kent, iron smelting county formerly, 

 231. 



Kerr, Dr., dielectrics affected by 

 electrification, reference to, 353. 



Kiel harbour, gutta-percha first used 

 in, 10. 



Kinkel, address by Siemens, C. W., 

 on, 24 ; civil service examiner, 27 ; 

 congratulations to, and family, 

 29 ; extensive acquirements and 

 experience of, 27, 28 ; imprison- 

 ment of and flight to England, 

 26, 27 ; patriotism of, 26, 28 ; 

 philanthropy of, 27 ; poems of, 

 reference to, 26 ; presentation of 

 work of art to, 29 ; professor of 

 the history of literature and art, 



