Our mode of whitening,145Oxidizing silver work,163Palladium alloy,173Pallion solder,89Parliament, Acts of,190Perchloride of iron,205Physical properties of metals,51Plain solid work,127Plate,4alloy for,70cleaning powder,206electro,46,150French,70manufacture,190powder,202Plating, battery for,150discoverer of,149electro,150fluid silver,206soft solder,201solution,157Plating solutions, recovery of silver,160Platinum alloy,172Plumbago, crucible for melting,99Polished silver,7Polishing,135lathe,137Polishings, burning of,179Pouring off lemel,107Powder for silver,200Precious metal,1Precipitation of silver,183Preparation for assay,17of bone-ash,32of plating solution,155of solders,87Present state of silver trade,128Press,127stamping,132Price of silver,9Principal alloys of silver,42metals,51Process, scorification,18advantages of,20details of,23of silver recovery,180-183Producing various shades,165Production of surface,135Protect polish of metals,200Protoxide of copper,44of zinc,102Pure silver,3Purity of silver,37Qualities used by silversmiths,64Quantity of alloy for cupel,35Quick-running solder,85Raised work,120Raising,122Recovery of silver from waste,160of silver from waste waters,183,185Refining surface of silver,146Remarks on silver solders,80Remedy in fineness,72Removal of litharge,35Removing gold from silver,198gold from silver-wares,205Resist varnish,202Ring, galvanic,129preparing wire for,130Rollers, slitting,112breaking-down,112Rolling, silver,108mills,110silver,112wire,113Sal-ammoniac,103Saving waste,177Scientific name for tin,49Scorification process,18assay,20Scorifier,19special form,19Scrap silver,102Scratch-brushing,161brush lathe,161Scriptural testimony,37,38Sealing-wax, dissolving,202Sediment,185Separation of silver,21Shades,165Shop floors,177Shot copper for alloying,44Silver a precious metal,1action under heat,8alloy, dissolving,202alloy for coinage,72alloy, standard,61alloyed with tin,49alloys, Chinese,170alloys, common,167,172alloys, imitation,167,172Silver alloys, No. 1,64No. 2,64No. 3,65No. 4,65No. 5,66No. 6,66No. 7,67No. 8,67American supply,12and aqua-regia,8and mercury,15annealing,109articles,194articles, common,147assay,14British, chief sources,13British yield,11burnishing,162characteristics of,5chief alloy of,30chloride,183commercial,9currency,6currency, foreign,13density of,7dissolution of,9dissolving,202ductility of,6easily tarnished,129European supplies,12filigree work,125for filigree work,5fusibility of,7goods, brown colour,146hardness of,8heating power of,7imitation,198known to the ancients,6law on,73lead and tin in,103malleability of,6mechanical uses of,52Silver, method of calculating,63mining,11native,11nitrate of,8,148ores,9ores, assay of,16oxidizing,163,198plating fluid,206polished,7powder,199,200powder for copper,199precipitating,183principal alloys,42pure,3purity of, after cupellation,37recovery of,160recovery,177,178rolling,109rolling, table of cost,112solders,81solder, dissolving,202solder, easy,82solder, hardest,79solder, medium,82solder, zinc in,46solders, fusibility of,80standards, foreign,207stripping mixture,200surface, improving,139tarnished,7test for,6trade, art in,123uses of,9various qualities,52ware,69,195ware, French,69ware, German,71wares, alloys for,72wares, removing gold,205wares, testing,203weighing,30whitening of,140Silver work, burnished,124work, hollow,131yield of,13Silversmiths,63alloys,40,197continental,209East Indian,141working,2Skittle-pot,25for lemel,104Slitting-rollers,112Snarling-tools,122Soda, carbonate of,16,102Soft solder,90,202dissolving,202plating,202Solder, composition for,81,98best hard,81common,83,85common easy,86dish,89easy,79,82,86filed,76for aluminium,206for chains,85for filigree,84,91hard,77Lemaille,91medium,76,82pallion,88quick running,85very common,87with arsenic,86with copper and silver,76with zinc,76Soldering, art of,74,90alloy, dissolving,202connections,77mode of,88fluid,201flux,77Solders containing tin,75Solders, drossy,88for enamelling,84melting of,83preparations of,87remarks on,80tin in,49Solid plain work,127Solution for battery,151cyanide,156for plating,157,158for precipitation,184inferior,159No. 1,163No. 2,164No. 3,164Soundness of crucibles,97Spain,11Sparrow-hawk,119Special soldering flux,92Specific gravity of zinc,47Spelter,46used by jewellers,47Spinning,134,135Sprouting,29Stamped work,126Stamping-press,132Standard alloy for hall-marking,62alloys of the highest quality,62Standards, English,60French,70German,71State in which silver is found,14State of silver trade,128State of the jewellery trade,12Stone, Water-of-Ayr,136Strength of solution,152Stripping silver,201Style of work, Austrian,211English,211French,209Style of work, German,210Indian,210Surface, refining of silver,145Swedish filigree,56System of assaying,39Table of cost of silver-rolling,112of metallic elements,50of various duties,90Tarnishing of silver,7of zinc,47Tax or licence,196Technical education,2Test for pure silver,6Testing crucible,97silver wares,203Testimony, Scriptural,37,38Test-ring,31Tin,48alloyed with gold,49alloyed with silver,49ancient workers,48and Christianity,48density of,48dissolving,48ductility of,49fusibility of,48in solders,49,76malleability of,49scientific name,50tenacity of,49vapours,49Tongs, draw,115Tongs for melting,100Total working loss,176Trade, silver, state of,128useful information for,197Treatment, economical,1in furnace,18of waste,179Treatment of waste liquids,180Twisting wires,58Unjustly assessed tax,195Uses of silver,9borax,22for imitation alloys,173of lathe,58silver, mechanical,52Vapours of tin,49Various qualities of silver,52duties, table of,190metals, mixing,95Varnish, resist,1Wares, ornamental,4law on,73removing gold from,205silver alloy for,72silver,197testing purity,203Washing-out mixture,138Waste, saving,178liquids, treatment of,180treatment of,181waters,182-185water, precipitation in,184Water-of-Ayr stone,139Weighing of silver assay,30Whitening, old method,140Indian mode of,142our mode of,145powder,147Wire for filigree,59rolling,112drawer’s drum,115drawer’s punch, &c.,117drawing, fine,117Wires, conducting,154Withdrawal from cupel,34Work, Austrian style,211burnishing,162English, style,211filigree,5,40,125French duty on,208French style,209German style,210hollow,131Indian style,210silver, burnishing,124solid,127stamped,132Workers, Indian,5Working filigree,56loss,175material, bad,98silversmiths,2total,176Workmen, English and Foreign,2Workmanship, process of,55Wrought work,118Yield of silver,11,13Zinc,46a fusible metal,98amalgamation,153annealing,47ductility of,48gravity of,47in silver solder,46,76malleability of,48on floors,178tarnishing of,47tenacity of,48