Nevada and California processes of silver and gold extraction ... . tration in matt 225 Silver concentration in lead 164, 244 Silver concentration in zinc 249 Silver extraction by mercury 207 Silver extraction by precipitation 208 Silver extraction by lead 228 Skimmer 136 Soda bisulphate 11, 71 Soda carbonate 11, 49 Specific gravity 33 Spitting of silver 253 Spitting of silver, remedy for 257 Steam application in roasting 100 Sternbergite 39 Stromeyerite 39 Sublimation in glass tubes 21 Sulphuret of silver and iron 39 Systematic proceeding in determining gold and silver ores 23 Table, loss of
Nevada and California processes of silver and gold extraction ... . tration in matt 225 Silver concentration in lead 164, 244 Silver concentration in zinc 249 Silver extraction by mercury 207 Silver extraction by precipitation 208 Silver extraction by lead 228 Skimmer 136 Soda bisulphate 11, 71 Soda carbonate 11, 49 Specific gravity 33 Spitting of silver 253 Spitting of silver, remedy for 257 Steam application in roasting 100 Sternbergite 39 Stromeyerite 39 Sublimation in glass tubes 21 Sulphuret of silver and iron 39 Systematic proceeding in determining gold and silver ores 23 Table, loss of silver by 33 Table, progress of enriching lead 165 Tailings 80, 89, 108 Temperature in cupelling 157, 258 Tellurid of silver 46 Test-ring 243 Tinfoil 12 Torta 131 Treatment of slag and matt from melt-ing bars 141 Treatment of rich silver ores 125, 209 Treatment of poor silver ores 210 Value of gold and silver per ounce— 145 Vitriol blue \ 69 Vitriol green 71 Volatility of silver 100 Weights, for assay 13 Wet assay 199 Wet process 67 Xanthocone 42. Fishboumas Litho£.529 Clay St. SX *
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Keywords: ., bo, bookcentury1800, bookdecade1860, booksubjectgold, bookyear1863
