Connersville Blower Co., 252 Consolidated Kansas City Smelting and Refining Co., 285 Coke, percentage necessary to use in smelting, 259 Croll, H. V., 253 Cupellation in lead refining, 269 De Lamar Copper Refining Co., 297 Desilverization in lead refining, 265 Desloge practice contrasted with others, 46 Doeltz, F. O., 139 Dross, analyses of in lead refining, 279 Dupuis & Sons, 63 Dust chamber, arched form, 231 beehive form of, 232 design, 229 rectangular form, 230 concrete, 235-237 Dwight, Arthur S., 73, 81 spreader and curtain in furnaces, 91 East Helena and Pueblo smelting systems compared, 93 plant of the American Smelting and Refining Co., 302 system of smelting, 88-94 Edwards, Henry W., 234, 240, 242 Einstein silver mine, 14 Engine, blowing, proper field of, 257 blowing, and rotary blowers, 258 Eriksson, Hjalmar, 306 Federal Lead Co., 38 Mining and Smelting Co., 7 Feeders, cup and cone, for round furnaces, 81 Ferraris, Erminio, 311 Flat River mines, 18 Flue gases and moisture, effect of on concrete, 242 Flues, concrete, 234, 240, 242 Foundations for dynamos, 236 Fremantle Smelting Works, 145 Fume-smelting, cost of, 33 in the hearth, 32 Furnace operations at Desloge, Mo., 45 Furnaces at Desloge, Mo., 43 reverberatory, at Desloge, Mo., 42 Galena, experiments in roasting, 129 lime-roasting of, 14 new methods of desulphurizing, 116 roasting of by Savelsberg process, 122, 123 Gas, furnace, effect of on cement, 240 Gelatine, use of in electrolytic lead refining, 275 Germot, A., 224 process, 224 Globe plant of the American Smelting and Refining Co., 304 Smelting and Refining Co., 244 Greenway, T. J., 59 Guillemain, C., 133 Harvard, Francis T., 242 Hearth, covered-in, 36 Heat, effect of on cement, 242 Heberlein, Ferdinand, 113, 167, 199 Hixon, Hiram W., 256, 258 Harwood, E. J., 51 Hourwich, Dr. Isaac A., 27 Huntington-Heberlein process, 113, 144-147 consideration and estimate of, 203-209 credit due to, 126 process as distinguished from others, 118 economic results of, 155-159 Huntington-Heberlein explained by the inventors, 167-173 process at Friedrichshütte, 148 process, from the hygienic standpoint, 160 ideas of in patent specifications, 117 process, introduction of at Tarnowitz, Prussia, 41 and Savelsberg processes, essential difference between, 192 process, some disadvantages of, 165, 166 Huppertz, L., 121 Hutchings, W. Maynard, 108, 126, 170 Huntington, Thomas, 113, 167, 199 Iles, Malvern W., 96, 252 Ingalls, W. R., 3, 16, 27, 42, 177, 186, 193, 215, 224, 244, 287 Iron, behavior of in silver-lead smelting, 75 Jackson Revel mine, 14 Johnson, E. M., 104 R. D. O., 18 Jones, Richard, 244 Samuel T., 244 Laur, F., 224