Transactions . 18 Railroad District, Nevada, Campaign in, .Rails, Investigations on Iron and Steel,Relative Values of Gold and Silver, History of,Rock Drilling Machinery, ....Rocks, Analysis of, .... .Rocks, Thin Sections of the Lower Paleozoic and Mesozoic of Pennsylvania, 829 44 426 144 94 327 Silver-Lead Metallurgy of the West, Progress during 1874, . . 307 Silver Mines of Newburj-port, 442 Sketch of Early Anthracite Furnaces, 152 Spelter Production at Carondelet, Missouri, 125 Spiegeleiscn, Annealing, ......... Surveying, Topographical, 422207 Thin Sections of the lower Paleozoic and Mesoz
Transactions . 18 Railroad District, Nevada, Campaign in, .Rails, Investigations on Iron and Steel,Relative Values of Gold and Silver, History of,Rock Drilling Machinery, ....Rocks, Analysis of, .... .Rocks, Thin Sections of the Lower Paleozoic and Mesozoic of Pennsylvania, 829 44 426 144 94 327 Silver-Lead Metallurgy of the West, Progress during 1874, . . 307 Silver Mines of Newburj-port, 442 Sketch of Early Anthracite Furnaces, 152 Spelter Production at Carondelet, Missouri, 125 Spiegeleiscn, Annealing, ......... Surveying, Topographical, 422207 Thin Sections of the lower Paleozoic and Mesozoic Rocks of Pennsylvania, 327Topographical Surveying, and Keeping Survey Notes, .... 207Tunnel, Musconetcong, ......... 131 Waste, Avoidable, at American Lead Smelting Works, 98 464 INDEX TO PAPERS. PAGE Whale Lode of Park County, Colorado, ....... 352 ?Wilmington, Illinois, Coal-Field, ........ 188 Zinc-Silver-Lead Alloy obtained in the Desilverization of Lead, Distilla-tion of, . 314 DEPTH OF CUT 56i!i±. FIjATJE I, «f tlie Aumerican Instttrate mf Miniinig Engineprs. YwL III. Fir. /. Fig. 3.
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
