552 



CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



Page 



Viscosimeters, Asphalt 25 



Viscosimeters, Oil 379. 380 



Viscosity Flasks, Saybolt ... 380 



Viscosity Pipette, Drucker... 403 



Viscosity Pipette, Ostwald... 403 



Viscosity Testers 26, 379, 380 



Viscosity Thermometers. .380, 497 



Vises w'ith Anvil 611 



Vise, Hand 512 



Vitrified Clay Combustion 



Boats 162 



Vitrified Clay Combustion 



Tubes 163 



Voge's Animal Holder 13 



Volhard's Nitrogen Bulbs 371 



Volt and Ampere-Meters. .209-213 



Volt-Ammeters 209-213 



Voltameters 403 



Voltmeters and Mllllvoltme- 



ters 209-213 



Volume of Loaf Apparatus. . 255 



Volume Weight Tube 459 



Volumetric Flasks 249. 250 



Volumetric Flasks, Precision. 250 



Volumetric Pipettes 405, 406 



Volumetric Pipettes, Preci- 

 sion 406 



Vulcan Non -Blast Burners... 

 119. 269 



W 



Walker Induction Coll 399 



Walker Specific Gravity Bot- 

 tles 105 



Wall Brackets for Balances. . 61 



Wall Charts 144, 145 



Wall Type Pyrometers 



418, 419, 423 



Walter Dropping Funnel 259 



Wantage Rods 380 



Warm Stages for Microscopes 350 



Warming Tables 350. 351 



Wash Bottle Flasks. 105, 106. 244 

 Washhurn's Conductivity Cells 396 

 Washburn's Iodine Coulome- 



ter 397 



W a s h b u r n's Transference 



Tube 403 



Washer Cutter 612 



Washing Bottles ...105, 106, 294 



Washing Bottles, Gas 294 



Washing Flasks. 105, 106, 244. 294 



Washing Horn for Gold 298 



Washing Pans 253 



Washington School Collec- 

 tions 366 



Washita Oil Stone 3 



Wassermann Baths 517-519 



Wassermann Reaction Test 



Tubes 488 



Wassermann Safety Pipettes. 405 



Wassermann Supports 



481. 517, 519 



Waste Can 512 



Waste Jars 329 



Watches, Stop- 473, 474 



Watch Clips 148 



Watch Glasses 61, 512 



Watch Glasses, Counterpoised 



61. 512 



Watch Glass Clamps 148, 512 



Watch Springs 512 



Watchmakers' Glasses ...334. 335 

 Water Analysis Apparatus... 



153. 154, 159, 405. 409, 520 



Water Analysis Pipettes 406 



Water Analysis Platinum 



Dishes 409 



Water Analysis Tubes 



153, 154, 159, 520 



Water Baths. All Kinds. .513-520 

 Water Baths. Serological .517-519 

 Water Baths for Vaccine Cul- 

 tures, Wassermann Test, etc. 



517-519 



Water Bath Thermometers.. 497 



Water Blasts 92 



Water Bottles 106, 329 



Water Chambers for Radium 



Emanation 424 



Water Comparison Cylinders. 153 

 Water Decomposition Appa- 

 ratus 332. 333 



Page 



Water Examination Appara- 

 tus, Whipple 620 



Water Gage 387 



Water Heaters 307, 308 



Water Holding Capacity 



Tubes 459 



Water Indicator and Oil Sam- 

 pler 380 



Water Indicating Paper 380 



Water Jet Filter Pump 243 



Water Level, Kekule 387 



Water Level Regulator 387 



Water Motors 368 



Water Motor Centrifuges. 134. 373 



Water Ovens 386 



Water Power Centrifuges. 134, 373 



Water Retention Cup 460 



Water Sample Bottles 106 



Water Sampling Apparatus. . 520 



Water Stills 195-198 



Water Table Apparatus for 



Soils 448 



Water Tanks 329. 449. -"5fi 



Water Tester 520 



Water Turbidity Measures.. 



159, 507 



Watt Meters 211 



Wax, Bees' '. 521 



Wax, Sealing 521 



Wax for Stop-Cocks 472 



Wax, Universal 521 



Wax, Vacuum 416 



Wax Bottles 106 



Wax Melting Point Testers. . 



377. 378 



Wax Pencils 395 



Wax Tapers 521 



Wax Test Thermometers. 496, 497 

 Weather Bureau Standard 



Thermometers 499 



Weather Forecast Charts.... 521 

 "Weather and Weather In- 

 struments" 521 



Wea.therhead Crushers 175 



Wedgewood Mortars 367 



Weighing Air Balloons 63 



Weighing Bottles 106. 107 



Weighing Bottle Supports... 62 



Weighing Burette 112 



Weighing Capsules or Scoops 



61, 62 



Weighing Dishes 61, 62. 187 



Weighing Pipettes 107 



Weighing Scoops 61. 62 



Weighing Soatulas 461 



Weighing Tubes 106, 107 



Weighing Tube Support 62 



Weights, Analvtlcal 55-67 



Weights, Apothecaries' B9 



Weights, Assay Ton 57 



Weights, Avoirrtunois RR. Kfl 



Weights for Balances 55-60 



Weights. Decimal Pound.... 58 



Weights, Factor 57 



Weights, Fractional 56. 58 



Weights, Prescription 59 



Weights for Sugar Analysis. 67 



Weights. Trov 59 



Weie-ht Block 62 



Weierht Hangers 60 



Weight of Rod Table 628 



Weight of Sheet Metal Table 528 



Weight of Wire Table 527 



Weiser Vapor Density Appa- 

 ratus 611 



Weld Specific Gravity Bottle. 105 



Welsbach Lamps 117. 291 



Weston Ammeters, Voltme- 

 ters 210-213 



Weston Standard Cell 70 



Westphal Specific Gravity 



Balance 61 



Wet Cup. Blackfan's 87 



Wet Pressure Governors 284 



Wet Test Meters 284. 285. 289 



Whatman Extraction Thim- 

 bles 233 



Whatman Filter Paper. . .239-241 

 Wheat Dockage Sieves. . .302. 442 



Wheatstone Bridges 



222. 223, 403. 455 



Wheatstone Slide Wire Bridge 403 



Wheels. Emery 368. 412 



Whtch-Way Levels 334 



Page 

 Whipple Ocular Micrometer 



Disk 520 



Whipple Water Examination 



Apparatus 520 



Whipple Water Bath 519 



White Enameled Palls 390 



White Rubber Tubing 430 



Whitney's Soil Sampling Tube 454 

 Wicks for Alcohol Lamps. . . . 120 



Wiessnegg Blast Lamp 120 



Wiessnegg Muffle Furnaces. . 269 

 Wiley Extraction Apparatus. 232 



Wiley Water Bath 520 



Wiley-Richardson Extraction 



Apparatus . . ., 232 



Will - Varrentrap Nitrogen 



Bulbs 371 



Williams Gas Analysis Appa- 

 ratus 281 



Window Thermometers 493 



Wine Stills 198. 199. 204 



Wine Tester, Salleron's 204 



Wing Dividers '. 201 



Wing Top for Burners 123 



Winkler Gas Burette 282 



Winkler Gas Collecting Tube 286 



Winkler Gas Pipette 294 



Winkler Potash Bulb 414 



Wire. All Kinds... 94, 411. 521-523 



Wire. Platinum 411 



Wire, Platinum, for Blowplp- 



ing 94 



Wire Baskets for Autoclaves. 481 

 Wire Baskets for Test Tubes 481 



Wire Clamps 146-148 



Wire Cutting Pliers 411. 412 



Wire Form Solder 460 



Wire Gages 274 



Wire Gage Tables 527 



Wire Gauze 623 



Wire Holders for Platinum 



Wire 32B 



Wire Resistance Table 527 



Wire Test Tube Supports.... 481 



Wire Triangles 504. 505 



Wire Weight Table 527 



Wisconsin Hydrostatic Bal- 

 ance 47. 357 



Witt Filter Plates 238 



Wolffhuegel Counting Appa- 

 ratus 169 



Wolpert's Air Tester 



Wood Boxes 108 



Wood Cone 408 



Wood Frame Electric Incu- 

 bators 320, 321 



Wood Frame Sieves 442 



Wood Frame Thermometer. . 499 

 Wood Levels, Mechanics'.... 3 



Wood Mallet 336 



Wood Supports 477-480 



Wood Working Tools. .. .145. 

 303. 305. 406, 434, 503, 504, 523 



Woodworth Slide Rule 444 



Wool, Glass 297 



Work Bench 523 



Woulff Bottles 107 



Wrapping Paper 3 



Wrenches, All Kinds 523 



"Wrench, Screw Tap 43S 



Wright Blood Capsules 



Wright Blood Pipettes 87 



Writing Diamond 185 



Wrought Iron Crucibles 171 



Wurtz Distilling Tube 200 



T Bridge Clamps 151 



Y Tubes 506 



Tarn Testing Machines 48* 



Young's Distilling Tubes 200 



Zahradink's Potash Bulb 414 



Zappert - Ewlng Haemacyto- 



meter 



Zincs for Batteries 66-69 



Zinc Condenser 1 



Zinc Sheet 526 



Zinc Tube, Vanier 161, 204 



Zinc Wire 523 



