INDEX TO VOLUM1 I. 



479 



METALLURGY. 



ABSORPTION. 



ABSORPTION of carbon by iron rules 

 numl'or 1 ' of pig-metal, 265; of 

 ln-at in blast furnace by trans- 

 fer of oxygen of ore to carbon of 

 coke, 262. 



il consumption of fuel to smelt 

 ;i ton of iron, 264. 



A lamson, D., iron and mild steel, 



mechanical and other properties 



of, discussion of papers by, 373- 



378, 409-412. 



Adamson's test piece, objection to, 



873. 



Additional height of blast furnace. 

 256 ; consumption of fuel, reasons 

 why theoretical, not attainable by, 

 256, 257, 267 ; fails to produce 

 economy beyond neutral point, 

 257. 

 Advantages of open top to blast 



furnace, 332. 



Akerman, Prof., hardening iron and 

 steel ; its causes and effects, dis- 

 cussion of paper by, 433-435. 

 Akerman, Prof., rotary furnace, 



report on, 342 ; on steel, 375. 

 Allen, W. D., Bessemer steel, use of 

 mechanical agitator in manu- 

 ture of, discussion of paper by, 

 450-452. 



Ammonia used in making soda, 330. 

 Analysis of cinder from puddling 

 furnace, 241 ; of puddled bar, 

 illustrating separation of im- 

 purities in puddling, 244 ; of 

 puddling furnace contents, by 

 Messrs. Calvert and Johnson, 238. 

 Ancient metallurgical methods 

 wasteful of fuel and material, 330. 

 Ancient steel, hardness of, 379 ; high 

 quality of, 379 ; process, descrip- 

 tion of, 378, 379. 



BASIC LINING. 



Annealed steel reduced in strength, 

 427. 



Annealing, irregular heating in, 

 447 ; overheating in, 447 ; process 

 criticised, 446 ; after punching, 

 371 ; of steel, 407 ; of steel cast- 

 ings, 465. 



Annealing hard steel, necessity of, 

 421, 427. 



Anthracite coke, 325 ; Appold ovens 

 for, 327 ; binding material for, 

 326 ; in blast furnace improves 

 quality of pig-iron, 332 ; height of 

 blast furnaces for, 326 ; in hori- 

 zontal coke ovens, 327 ; Landore 

 blast furnaces designed for. 326 ; 

 manufacture of, at Crensot, 326 ; 

 proportions of material in, 327 ; 

 sulphur disappears with use of, 

 327. 



Architectural purposes, steel for. 

 404. 



Armstrong system of ordnance, 398. 



Attwood, C., attempt to make steel 

 on hearth of regenerative furnace, 

 388. 



Averages, applicable to errors of 

 observation, 442 ; illustrations of, 

 442. 



BALLING, iron prevented from, by 

 copper, 306, 331. 



Barnaby, N., naval construction, use 

 of steel in, 409-412 ; shipbuild- 

 ing, iron and steel for, 313-315, 

 discussion of papers by. 



Basic lining, transition from silica 

 lining to, in Bessemer, puddling 

 and open-hearth steel furnaces, 

 414. 



