536 



CENTRAL SCIENTIFIC CO., CHICAGO, U. 8. A. 



Page 



Dissecting Needles 190 



Dissecting Pans 190 



Dissecting Scalpels 190. 191 



Dissecting Scissors 192 



Dissolving Tube, Freas 196 



Distillation Flasks 246. 247 



Distillation Thermometers . . 496 

 Distilled Water Storage Tank 329 

 Distilling Apparatus. .20. 21. 



196-200, 204, 369, 370, 374, 427 

 Distilling Apparatus, Hortvet 199 

 Distilling Apparatus, K1el- 



dahl 369. 370 



Distilling Apparatus, Mer- 

 cury, Hulett's 199 



Distilling Apparatus for Min- 

 eral Oils and Tars 



20, 21, 198. 199, 374 



Distilling Apparatus. Vacuum 426 

 Distilling Flasks, All Kinds. . 



246-248 



Distilling Shelves, Kjeldahl.. 



369. 370 



Distilling: Tubes, All Kinds.. 



199-200, 371 



Distilling Tube, Glinsky 200 



Distilling Tube, Hempel 200 



Distilling Tubes, Hopkins... 371 



Distilling Tube, Knight 200 



Distilling Tube, LeBel Hen- 



ninger 200 



Distilling Tube. Wurtz 200 



Distilling Tube, Young 200 



Distributing Box for Micro- 

 scope Lamps 347 



Distributors for Gas 287 



Dividers, All Kinds.. 200. 201, 358 

 Dixon's Plumbago Crucibles. 172 



Dixon's Sand Crucibles 173 



Dockage Sieves, Wheat.. 302. 442 



Dodge Rheostats 226 



Doremus Gas Collector 286 



Doremus TIreometers 509 



Doremus-Hinds TTreometers . . 609 

 Double Automatic Pipettes.. 404 



Double Boilers 329 



Double Dishes 181 



Double-End Planes 406 



Double Meter Sticks 435 



Double Walled Funnels 258 



Double Walled Incubators... 324 



Double Walled Ovens 386-388 



Doublet Magnifiers 334 



Dough Expansion Jars 252 



Dough Mixing Knife 253 



Dough Testing Thermometer. 



.- 255, 494 



Dovetail Saw 434 



Draft Gages 272 



Drainage Apparatus for Soils 



448. 457 



Draw Knives 203 



Draw Plate 203 



Drawing Boards 201 



Drawing Ink 201 



Drawing Instruments ....201-203 



Drawing Paper 202 



Drawing Pencils 202 



Drawing Scale, Triangular.. 203 



Drawing Triangles 203 



Drawing T-Squares 203 



Dressing Forceps 189 



Dressing Jars 327 



Dressing Sterilizer? ...26-29, 465 



Dressing for Strops 355 



Drills 203, 204 



Drill Gage 204 



Drill Points 203. 204 



Drivers, Screw 437 



Driving Heads 459 



Drops, Prince Rupert 432 



Drop Culture Slides 349 



Droppers, Medicine 404 



Dropping Bottles 99 



Dropping Funnels 258, 269 



Dropping Pipettes 404. 509 



Drucker Calomel Normal 



Electrodes 397 



Drucker Viscosity Tubes.... 403 

 Drucker Viscosity Pipette... 403 



Drug Mills 177-180 



Dry Batteries 67 



Dry Measures, Wood 336 



Dryer. Chloride Calcium 



Holder for Balances 61 



Drying Apparatus. Bennert's 204 

 Drying Apparatus, Tauber's. . 204 



Drying Bulbs 



..124, 160, 161, 204. 413. 414, 424 

 Drying Closets, Glass 185 



Page 



Drying Jars, Calcium Chlo- 

 ride 124, 160. 161 



Drying Ovens for Asphalt 



Testing 21. 387 



Drying Ovens, Constant Tem- 

 perature 383-388 



Drying Paper. Botanical .... 95. 96 

 Drying Tables, or Hot Plates 



308-310 



Drying Tubes 



..124, 160, 161, 204, 413. 414. 424 

 Drying Tubes, Calcium Chlo- 

 ride 124, 160, 161 



Drying Tube and Potash Bulb 



Combined, Vernier 9, 161 



Duboscq Colorimeter 164 



Ductility Machine, Asphalt. . 21 



Ductility Machine, Smith's... 21 



Ductility Machine Mold 23 



Dudley's Sulphur Apparatus. 476 



Dulln Rotarex 19 



Dumas Vapor Density Appa- 

 ratus 63, 510 



Dumas Vapor Density Bulbs. 



63. 510 



Dunham's Gas Regulator.... 501 



Dunning Colorimeter 156 



Duplex Slide Rule 444 



Du Pont Nitrometer 371 



Dust Determination Appara- 

 tus 10, 285. 287 



Dust Filters 10, 285, 287. 501 



Dusting Brushes 108. 109 



Dutch Leaf 256 



Duvel Moisture Apparatus... 301 

 Dwlght's Gas Analysis Appa- 

 ratus 278 



Dye Pots 78 



Dynamos, Electric 207. 208 



Earth Thermometer 499 



Earthenware Covers for Pe- 



tri Dishes 181 



Earthenware Guard for Burn- 

 ers 123 



Earthenware Jars 329 



Kbnlllometer. Salleron 204 



Eclipse Autoclaves 26 



Edgerton Standard Screen... 292 

 Edison Primary Batteries... 67 

 Edwards Gas Density Balance 286 

 Epgertz Carbon Comparison 



Tubes 153 



Egerertz Color Comparison 



Tubes 153 



Elnhorn Fermentation Sac- 



charometer 509 



Elector. Gas 285 



Electrical Instruments. All 



Kinds 205-229. 403. 455 



Electric Arc Lamps for Mi- 

 croscopes 346 



Electric Baking Ovens... 381, 382 

 Electric Baths. . .514-516, 518. 519 



Electric Batteries 66-74 



Electric Battery Connectors. 76 



Electric Bells 80 



Electric Binding Posts 76 



Electric Blowers, Hot Air... 88 



Electric Centrifuges 



135-140. 142. 374. 446 



Electric Charger for Storage 



Batteries 71. 313 



Electric Combustion Furnaces 



160, 161, 260, 261 



Electric Combustion Trains.. 



160. 161 



Electric Cremator, DeKho- 



tinsky 169 



Electric Current Rectifiers.. 219 

 Electric Distilling Apparatus 196 



Electric Dry Cells 67 



Electric Drying Oven 383-386 



Electric Dynamos 207. 208 



Electric Extraction Appara- 

 tus 19, 233, 234 



Electric Flask Heaters 



233. 234, 306. 615 



Electric Furnaces, Hosklns.. 



260, 263. 266 



Electric Generators 207. 208 



Electric Heater for Milk 



Testers 360 



Electric Heating Device for 



Incubators 321. 322 



Electric Hot Air Blast 88 



Electric Hot Plates 308-310 



Electric Incubators 318-325 



Electric Instrument Steriliz- 

 ers ; :465-466 i 



Page 



Electric Loop Flaming De- 

 vice 169 



Electric Machines 205-229 



Electric Meters 209-213 



Electric Milk Testers 359-361 



Electric Motors 214-216 



Electric Motor Generators... 



217. 218 



Electric Ovens 381-388. 390 



Electric Ozonators 389 



Electric Paraffine Ovens. .393-395 

 Electric Polishing Heads.... 413 

 Electric Proofing Cabinets... 254 



Electric Pyrometers 417-423 



Electric Resistances 220-226 



Electric Rotators 229. 470 



Electric Shaking Apparatus.. 



438-440 



Electric Sieve Shakers. . .442. 443 

 Electric Soldering Coppers.. 460 

 Electric Staining Apparatus. 464 



Electric Stirrers 470 



Electric Stop-Watches 473. 474 



Electric Storage Batteries. .70-73 



Electric Switches 228, 229 



Electric Testing Set 223 



Electric Thermo-Regulators. 500 

 Electric Thermostatic Baths. 



401, 403 



Electric Time Marker 501 



Electric Transformers ...226. 227 



Electric Tube Furnaces 270 



Electric Warm Stage 350 



Electric Water Baths 



514-516, 518. 619 



Electric Water Stills 196. 197 



Electro-Analysis Apparatus.. 229 

 Electro-Chemistry Apparatus 



229, 396-399, 403 



Electrodes, Calomel Normal.. 397 



Electrodes, Dipping 397 



Electrodes, Gas 398 



Electrodes, Immersion 397 



Electrodes, Metal for Half 



Elements 399 



Electrode, Pipette 397 



Electrodes. Platinum. 398, 399. 410 

 Electrode Cells, Ostwald. .396-398 



Electrode Rotator 229 



Electrode Support 397, 398 



Electrode Tube, Capillary... 



398. 399 



Electrolyte for Edison Bat- 

 teries 73 



Electrolytic Apparatus 



229, 332, 333 



Electrolytic Outfit, Braun... 229 



Electrolytic Rectifiers 219 



Electrolytic Stirring Appara- 

 tus 229. 470 



Electrolytic Supports 229 



Electromagnets 205 



Electrometers, Capillary .398. 399 

 Electroscope for Radio-Chem- 

 istry 423-425 



Electro - Silica Combustion 



Tubes 163 



Electro-Silica Crucibles 174 



Elements. Charts of. with 



their Atomic Weights 144 



Elements, Half, for Physical 



Chemistry 399 



Elements. Normal 397 



Elliott Flash and Fire Tester 375 



Elliott Gas Apparatus 281 



Elliott Oil Tester 375 



Eluriating Apparatus ...247, 449 



Eluriating Flasks 247, 449 



Emanation Chamber 424 



Emanation Electroscope. .423-425 

 Embedding Baths, Paraffine. 



392, 393 



Embedding Box 364 



Embedding Ovens, Paraffine. 



393-395 



Embryologlcal Cup 188 



Embryological Watch Glasses 188 



Emergency Kit 243 



Emerson Razor Strop 355 



Emery Cloth 230 



Emery Paper 230 



Emery Paper Grinder 3 



Emery Paper. Metallographic 337 



Emery Wheels 368, 412 



Kmmerling's Absorption Tube 8 



Enameled Pails. White 390 



Enameled Wire. Copper 521 



Enamelware Dishes. 187, 253. 300 



Enamelware Funnels 257 



Enamelware Waste Pail 390 



