640 



INDEX TO ILLUSTRATIONS. 



Quicksilver Distillation. 



427; 429; 430; 431; 432 



Rag and Chain Pumps 



191; 193; 194; 195; 197 



Rammers FOR Fire-clay 377; 383 



Ring-Fire, for Parting with 



Sulphur 449 



Roasting {see also Heap and Stall 



Roasting) 



278; 350; 351; 274; 275; 276 



Rosette Copper Making 537 



Salt. 



BoUing 549; 554; 555 



Caldron 551; 653 



Evaporated on faggots 556 



Pans 547 



WeUs 549 



Saltpetre Making 563 



Saxon Lead Furnace 393 



Scorifier 229 



Seams in the Rocks... 54; 55; 56; 60; 72 

 Shafts. 



Inclined 104 



Timbering 12S 



Vertical 103; 105 



Shears for Cutting Metal 269 



Shield for Muffle Furnace 241 



Sifting Ore 287; 288; 289; 291; 



292; 293; 311 ; 342 



Silver. 



Cakes, Cleansing of 476; 488 



Refining 484; 485; 486; 489 



Sleigh for Ore 168 



Sluicing Tin 337; 338; 340; 343 



Smelter, Plan of Building 361 



Soda Making 561 



Sorting Ore 268; 270 



Spalling Ore 270; 271; 272 



Stall Roasting. 



Matte 350; 351 



Ore 274; 276 



Stamp-mill 284; 286; 287; 299; 



313; 320; 321; 373 



For breaking copper cakes 501 



Stamps 285 



Steel Furnace 425 



Strakb 302; 303; 305; 306; 



307; 341; 342; 345 



Canvas 308; 309; 317; 321; 329 



Streaming for Tin 318 



Stringers. 



Associated 71 



Fibra dilatata 71 



Fibra incumbens 71 



Oblique 71 



Transverse 71 



Surveying. 



Rods IMa 



page 

 Surveying. 



Shafts and Tunnels 131 



Triangles 133; 134; 135; 



136; 137; 139; 140 



Suction Pumps (see Pumps). 



Sulphur Making 579; 581 



Tap-holes in Furnaces 



Tapping-bar 



" Tests " for Refining Silver ... 

 Timbering. 



Shafts 



Tunnels 



Tin. 



Bars 



Burning 



Refining 



Smelting 



Touch-needles 



Trays for Washing Alluvial 



Tread Whim 



Trough 



For washing alluvial 



Trucks 



Tunnels 103; 104; 



Timbering 



Veins. 



Barren 



Beginning of 



Cavernous 



Curved 



End of 



Head of 



Horizontal 



Intersections of 64; 65; 66 



Solid 



Strike of 



Vena cumulata 



Vena dilatata 45 ; 50 ; 54 ; 60 ; 61 



Vena profunda 



... 45; 50; 53; 61; 62; 63 

 Ventilating with Damp Cloth (see 

 also Bellows, Fans, and Wind- 

 sails) 



Vitriol Making 567 ; 574 ; 575 ; 



Wagons, for Hauling Ore 



Washing Ore (see Sifting Ore). 

 Water Tanks, under Furnaces ... 



Wedges 



Weights, for Assay Balances 



Westphalian Lead Smelting 



Wheelbarrows 



Whims. 



Horse 



Tread 



Windlasses 161 ; 



Winds, Direction of 



Windsails for Ventilation 201 ; 



389 

 383; 385 

 384; 485 



123 

 125 



415 

 349 

 418 



415; 419 

 255 

 334 

 163 

 159 



335; 348 

 156 



105; 120 

 125 



7S 

 69 



73 

 61 

 6* 

 69 



61 



; 67; 68 



73 



62; 63 



49; 70 



; 68; 69 



; 64; 68 



