CHAPTER IX.

_On the Working of Silver._

Rolling Silver 108 Annealing Silver 109 Irregularities in Rolling-mills 110 Messrs Kemp's Mill 110, 111 Table of the Cost of Silver-rolling 112 Slitting Rollers 112 Breaking-down Rollers 112 Wire-rolling 113 Wire-drawing 113 Draw-plate 114 Draw-bench 110, 115 Draw-tongs 115 Drum used by Wire-drawers 115 Fine Wire-drawing 115, 116 Wire-drawer's Punch and Hammer 117 Wrought Work 118 Sparrow-hawk 119 Raised Work 120 Cement for Chasers 121 Snarling-tools for Raising 122 Art in the Silver Trade 123 Burnished Silver Work 124 Silver Filigree Work 125 Stamped or Struck-up Work 126 Press 127 Plain Solid Work 127 Chain Bracelets 128 Present State of Silver Trade 128 Silver, Liability to become tarnished 129 Enamelling 129 Galvanic Ring 129 Mode of preparing Ring 129, 130 Hollow Silver Work 131 Stamping-press 132 Spinning 134, 135 Polishing 135 Water-of-Ayr Stone 136 Polishing-lathe 137 Washing-out Mixture 138