The Silversmith's Handbook Containing full instructions for the alloying and working of silver
CHAPTER XII.
_Economical Process._
Working Loss 175 Lowest Estimate Real Loss 175 Total Working Loss 176 Shop Floors 177 Waste-saving Precautions 177, 178 Treatment of Waste 178 Burning of Polishings 179 Treatment of Waste Liquids 180 Processes for the Recovery of Silver from Waste Waters 180, 182 Chloride of Silver 183 Aqua-regia 183 Precipitating Silver in Waste Waters 183 Solution for Precipitation 184 Sediment in Collecting-vessels 185