492 



INDEX TO VOLUME 1. 



BEMOVAL OF IMPUEITIES. 



products of combustion passing 

 through, 224, 383. 



Eemoval of impurities in puddling 

 depends on high temperature, 

 244. 



Kesearch, encouragement of, 359. 



Reversing valves for regenerators, 

 246, 247, 383. 



Eise of temperature of blast furnace 

 gases, cause of, 258, 260. 



Riveting of steel, 460. 



Rolling of steel, assisted by man- 

 ganese, 368, 374, 377 ; tires, 374. 



Rotary furnace, Siemens's,C.W., 292, 

 304, 393 ; abandonment of, in 

 connection with steel-melting fur- 

 nace, 292 ; advantage of over blast 

 furnace, 308 ; analysis of iron, 348 ; 

 analysis of slag, 351 ; anthra- 

 cite in, 299 ; apparatus and pro- 

 cess, description of, at Towcester, 

 343 ; balling in, 299. 395 ; bauxite 

 used in, gee Bauxite ; and blast 

 furnace compared on theoretical 

 grounds, 300 ; cast steel obtain- 

 able in, 300 ; charges from, work- 

 ing results of, at Towcester, 347 ; 

 charging of, 299 ; Cleveland pig 

 carefully puddled in and melted 

 on open hearth made good steel, 

 359 ; carbonic oxide consumed at 

 moment of generation in, 307 ; 

 carbonic oxide developed in, 394 ; 

 comparison of results with those 

 from blast furnace and puddling 

 furnace combined, 310, 356 ; com- 

 plete combustion in, explanation 

 of, 301 ; consumption of coal in, 

 at Towcester, 345 ; consumption 

 of fuel in, theoretical and actual, 

 302 ; cost of hammered blooms 

 from, 345 ; cost of process, 344 ; de- 

 oxidation of ore and fusion of 

 earthy matter in, 301 ; description 

 of, 298, 393 ; discussion between 

 Bell, I. L., and Siemens, C. W., on, 

 356, 357 ; economy of fuel in, 310 ; 



SAHUELSON, B. 



energetic action in, necessity 

 for, 307 ; experimental furnace no 

 criterion of economy of, 306 ; 

 experiments with at Sample Steel 

 Works, Birmingham, 309 ; fettling 

 for, 309 ; fuel in, 306 ; heat ab- 

 sorbed in, 301 ; heat of high tem- 

 perature attainable in,305 ; heated 

 gas and air introduced into, 298 ; 

 iron dephosphorized in, 354 ; lining 

 for, 306 ; loss in, 344 ; material 

 from, suitable for steel-making, 

 308 ; mechanical tests of iron from, 

 349, 350 ; modus operandi in, 394 ; 

 process in, 301 ; production of 

 CO and C0 2 , within, 301, 307; 

 products of combustion withdrawn 

 from, 298 ; purity of iron from, 

 343, 395 ; reaction in, 299, 301, 354, 

 355 ; reaction and fusion combined 

 in, 307, 319 ; reports on, by Profes- 

 sors Akerman and von Tunner, 

 342 ; rotation of, 292 ; saving of 

 fuel in, 300 ; sulphur and phos- 

 phorus not added to iron in, 308 ; 

 tapping of, 299 ; temperature high 

 in, 394 ; theoretical consumption 

 of fuel for production of metallic 

 iron in, 307 ; throat of not at- 

 tached, 304 ; time occupied in 

 working charge in, 299, 344 ; varia- 

 tion of process with different ores, 

 358 ; -wood in, 299 ; working of, 

 298,306; working for a time with- 

 out gas, 299, 308 ; yield from, 344. 



Rotary puddling furnace, 280 ; 

 Danks's, 280 ; steel-melting tem- 

 perature not attainable in, 281. 



Running metal direct from blast 

 furnace for steel manufacture, 

 332. 



STE.-CLAIRE DEVILLE, report on 

 open-hearth steel process, 216. 



Samuelson, B., blast furnaces, dis- 

 cussion of paper by, 273-276. 



