PAGE
Antwerp, Scale of Weights....... 263
Apex Law.............................. 81; 83—86
Aqua regia ........................ 439; 441; 354
Aqua Valens (see also Nitric Acid)...
......................... 439—443; 439; 220
Clarification with silver............. 443; 443
Cleansing gold-dust with............. 396
Parting precious metals with ...... 443—447
A rbores dissectae (Lagging) ............ 101
Archimedes, Screw of ............... 149
Architecture.
Knowledge necessary for miners 4
Area fodinarum (see Meer).
Argentiferous Copper Ores,
Smelting of ..................... 404—407
Argentite ................................. 109
Argentum purum in vents (see Native
Silver).
Argentum rude plumbei coloris (see
Silver Glance).
Argentum rude rubrum translucidum
(see Ruby Silver).
Argol ....................................... 234; 220
As a flux........................ 234; 238; 243
Use in melting silver nitrate......... 447
Use in smelting gold dust............ 396—398
Argonauts ............................... 330
Arithmetical Science.
Knowledge necessary for miners... 4
Armenia, Stone of \.................... 115
Arsenic (see also Orpiment and
Realgar)........................... Ill; 214
Arsenicum.................................. HI
Arsenopyrite............................ Ill
Asbestos ......................... 440; 440; 114
Ash-coloured Copper ................
......... 539—540; 540; 523—524; 492
From liquation ........................ 529—530
Ashes which Wool Dyers use (see
also Potash)............... 233; 559; 220
Use in assaying ........................ 236-—238
Ash of Lead............... 237—238; 237; 220
Ash of Musk Ivy (see also Potash
and Nitrum)............... 236—238; 220
Asphalt .................................... 581
Asphaltites (see Dead Sea).
Assay Balances (see Balances).
Assay Fluxes (see Fluxes).
Assay Furnaces ............... 224—228; 220
Crucible.................................. 226—227
Muffle ........................... 224—228; 239
Assaying (see also Probierbüchlein)...
........................ 219; 219; 220; 354
Amalgamation......................... 243
Bismuth ................................. 247
Copper.................................... 244
Cupellation .............................. 240
Gold and silver alloys ............... 248
Gold ore ................................. 242—244
Iron ore ................................. 247
Lead ..................................... 245—246
Silver..................................... 242—245
Silver and copper alloys ............ 249—250
Tin........................................ 246
Tin and silver alloys ................ 251
Assay Muffles (see Muffles).
Assay Ton................................. 261; 242
Assyrian Copper........................ 402
Asthma..................................... 214
Astronomy.
Knowledge necessary for miners... 4
Atarnea.
Mines/near .............................. 26; 27
Athens.
Mining law .............................. 83
Sea flower and mines................ 27