INDEX TO ILLUSTRATIONS

PAGE

Alum Making. 571

Amalgamation Mill. 299

Ampulla. 442 ; 446

Argonauts . 330

Assay Balances (see Balances).

Assay Crucible . 229

Assay Furnaces.

Crucible . 227

Muffle . 223; 224

Balances. 265

Baling Water . 199

Bars, for Furnace Work . 377 ; 389

Bate a . 157

Bellows.

For blast furnaces 359 ; 365; 368 ; 370 ; 372

For mine ventilation. 208; 209; 211

For tin furnace . 419

Bismuth Smelting. 434 ; 435 ; 436 ; 437

Bitumen Making . 582

Bitumen Spring . 583

Bowls for Alluvial Washing (see

also Batea) . 336

Buckets.

For hoisting ore . 154

For hoisting water . 158

Buddle .301; 302 ; 314; 315

Building Plan for Refinery . 493

Building Plan for Smelter. 361

Chain Pumps . 173; 174; 175

Chrysocolla Making .. .

Circular Fire ( see Ring-Fire).

Clay Washing . 374; 375

Compass . 57; 59; 142; 147

Copper Mould for Assaying . 250

Copper Refining . 534; 537

Copper Refining Furnace. 532

Crane.

For cupellation furnace. 479

For liquation cakes . ®1 4

Crowbars . 1®"

Cupel . 229

Mould . 231

Cupellation Furnace. 468 ; 470; 474

At Freiberg . 481

In Poland . 482

Cutting Metal. 269

Descent into Mines. 2 * 3

Dipping-pots 385; 387; 389 ; 393; 415; 41/

Distillation (see Nitric Acid and

Quicksilver). ..

Divining Rod.

Dogs Packing Ore . ■

Drifts . '° 5

Drying Furnace for Liquation ^..__

Dust Chambers. 395; 417

Fans, Ventilation. 204; 205; 206; 207

Fire-Buckets. 377

Fire Pump . ”77

Fire-Setting.

Forehearth . . .

357; 358;”383; 385 ; 387; 390; 417

ames (or Sluices) for Washing

Ore or Alluvial.

Furnaces. 322 ~ 324; 326-329; 331-333

Assaying ( see Assay Furnaces).

ast 357; 358; 373; 377; 383; 385;Cr>ri 387; 390; 395; 419; 424; 508

Copper refining . 537

DHtiiu ° n ,‘. 468 ; 470; 474 ; 481; 482

instilling sulphur . 277

-nnching copper bottoms . 510

lrnn SS .' ma £- ns . 587 ; 588; 589 ; 591

ron smelting . 422; 424

page

Furnaces.

Lead smelting (see also Furnaces,

blast). 393

Liquation. 517; 519; 525; 527 ; 528

Nitric acid making. 442

Nitric acid parting. 446

Parting precious metals with anti-mony . 453

Ditto cementation. 455

Quicksilver distillation . 427—432

Refining silver . 485 ; 486 ; 489

Roasting . 276

Steel making. 425

Tin burning. 349

Tin smelting . 415

Gad . 150

Glass Making . 591

Furnaces. 587 ; 588 ; 589

Ground Sluicing 337; 340; 343; 346 ; 347

Hammers. 151

With water-power. 422; 425

Heap Roasting . 275 ; 278

Hearths.

For bismuth smelting . 436 ; 437

For heating copper cakes . 504

For melting lead . 393

For melting lead cakes. 499

For refining tin . 418

For roasting. 277

Hemic ycle. 138

Hoe . 152

Intervenium . 50

Iron Fork for Metal. 387

Iron Hook for Assaying . 240

Iron Smelting . 422; 424

Iron Tools. 150

Jigging Sieve. 311

Ladders. 213

Ladle for Metal . 383

Lead Mould for Assaying . 240

Liquation Cakes.

Dried . 530

Liquation Cakes, Fxhausted . 522

Liquation Furnaces .

. 517; 519; 525; 527; 528

Lye Making . 557

Matte Roasting . 350; 351

Meers, Shape of. 79 ; 80 ; 86 ; 87 ; 89

Mills for Grinding Ore . 294 ; 296

Muffle Furnaces. 223 ; 489

Muffles . 228

Nitric Acid Making... 442

Nitrum Pits . 559

Operculum . 446

Orbis . 142a

Parting Precious Metals.

With antimony .

By cementation .

With nitric acid .

With sulphur .

Picks .

Plummet Level.

Standing .

Suspended .

Pumps.

Chain . 173;

Duplex suction . 180 ;

Rag and chain . 191 ; 193 ;

Suction... 177; 178; 179; 182;

453

455

446

449

152

143

146

174; 175185; 189194; 195188; 137

639