4 8 4 



INDEX TO VOLUME I. 



ENGINEERING "STRUCTURES. 



Engineering structures, steel for, 

 375. 



Equality of heat carried away from 

 blast furnace by escaping gases, 

 and brought in by hot blast, 263, 

 264. 



Equality of ore charged and smelted 

 in blast furnace, 257. 



Errors of observation, averages ap- 

 plicable to, 442. 



Experiments on puddling by Price 

 and Nicholson, 238. 



FACTOR of safety, calculated erro- 

 neously in terms of ultimate 

 strength, 271 ; ductility as affect- 

 ing, 464 ; for steel, 428, 459, 460. 

 Failure of Chenot, Clay and Kenton 



to puddle spongy iron, 242. 

 Failure of steel, causes of, 409 ; due 

 to faults in treatment, 410 ; due 

 to silicon, 377. 



Falling weight test of steel, 271. 

 Faraday described regenerative gas 



furnace in 1862, 210. 

 Final action in blast furnace, 290. 

 Fluid steel, carbonic oxide absorbed 



by, 322. 



Forth bridge, steel for, 420. 

 Fremy on steel, 211. 

 Fuel, in blast furnace, should live 

 down to crucible, 327 ; available 

 for gas-producer, 219, 245. 

 Fuel consumption in blast furnace, 

 minimum 1\ cwt., error in cal- 

 culating, 256, 257 ; minimum, re- 

 capitulation of arguments regard- 

 ing, 259. 



Fuel , theoretical minimum, in pro- 

 duction of steel, 302. 

 Fused steel and other steel, distinc- 

 tion between, 323. 

 Fusion of steel, importance of, 403. 

 Fusion of steel in crucibles. 229 ; 

 (in regenerative gas furnace, 229, 

 381 ; bed of coke-dust for, 229 ; 



GASES. 



saving and arrangement of cru- 

 cibles in, 229 ; reduction of cost 

 of, 229 ; melting chamber for, 

 229 ; saving of fuel in, 229.) 

 Fusion of steel processes, 215 ; in 

 crucibles, 229 ; Hindoo, recently 

 revived by Heath, Price & Nichol- 

 son, Gentle Brown, and Atwood, 

 216 ; Huntsman's, 215 ; open- 

 hearth, q. v. ; Reaumur in 1722 

 used, 215 ; regenerative open- 

 hearth, q. v. ; Uchatius's, 216. 



GAS-producer, 219, 385 ; air, how 

 admitted to, 220, 245 ; aqueous 

 vapour, utilization of, in, 221 : 

 charging arrangement for, 219, 

 385 ; C0 2 , how reduced to CO, 

 in, 220, 245, 385 : coal pits, bot- 

 tom of, for, 224 ; composition of 

 gases from, 219 ; cooling gas from, 

 advantage of, 223, 386 ; cooling 

 tube elevated, for, 222, 245, 386 ; 

 damper, sliding, for, 245 ; descrip- 

 tion of, 219, 245 ; distillation of 

 tar and hydrocarbons in, 221, 245, 

 385 ; any fuel available for vola- 

 tilization in, 219, 245 ; gas, low 

 heat of combustion of, 220 ; grate 

 of, 220 ; grouping of, and leading 

 gas from into main flue, 224, 246, 

 387 ; indraughts into, how pre- 

 vented, 221 ; losses in, considera- 

 tion of, 324 ; objections to, refuted, 

 223 ; plenum of pressure within, 

 how maintained, 222, 223, 245 ; 

 retorts for, 325, 454 ; steam de- 

 composed in, 221 ; surplus heat of, 

 how utilized, 221 ; syphon ar- 

 rangement of, 222, 246, 386 ; tem- 

 perature of gas rising from, 222, 

 385 ; total loss in, 12 per cent., 

 324 ; waste heat of. how utilized, 

 221. 



Gases set free in moulds in congela- 

 tion, 335. 



