548 



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



Shore's Hardness Tester 306 



Shore's Pyrometers 422 



Shot, Lead 332 



Shovel, Cupel 182 



Shovels, Sample 432, 435 



Show Bottles 104 



Shrinkage Apparatus, Soil... 455 

 Shunts for Demonstration 



Galvanometers 213 



Shunts for Galvanometers... 206 

 Shuster Dropping Bottles.... 99 



Side Neck Flasks 246. 247 



Slemen's Ozone Apparatus... 390 



Siemen's Ozone Tube 390 



Sieves, All Kinds 302, 440-442 



Sieve Bolting Cloth 255. 441 



Sieve Frames 255. 441 



Sieve Shakers 442. 443 



Sieve Sifting Machines. . .442. 443 



Sifter, Lightning 443 



Sifting Pans 441, 442 



Sight-Boxes, Photometer 290 



Sight Compasses 164, 482 



Signal Marker 501 



Silica Beakers 78 



Silica Boats 162 



Silica Capsules 162 



Silica Casseroles 130 



Silica Combustion Boats 162 



Silica Combustion Tubes 163 



Silica Crucibles 174 



Silica Dishes 186. 188 



Silica Distilling Flasks 246 



Silica Evaporating Dishes... 186 



Silica Flasks 246, 247. 249 



Silica Muffles 367 



Silica Rods 443 



Silica Test Tubes 488 



Silica Triangles 505 



Silica Tubes 163 



Silica Tubing 443 



Silk. Oiled 443 



Silk Bolting Cloth 255. 441 



Silk Fish Line 165 



Silk Peptone 82 



Silk Thread 501 



Silver Crucibles 174 



Silver Dishes 188 



Silver Foil 94 



Simpler Ore Crushers 176 



Simplified Rotary Microtome. 



Spencer's 352 



Single Wall Incubators, De 



Khotinsky 319 



Siphons 443 



Siphon Gages 272 



Siphon Slide, Holman's 349 



Siphon Tubes for Extraction 



Work 230-232 



Six's Maximum and Minimum 



Thermometer 495 



Skidmore's Crucibles 174 



Skidmore's Retorts 174 



Skim Milk Bottles 367 



Skins, Chamois 144 



Skin, Goldbeaters' 298 



Sleeves 14 



Slick. Flour 252 



Slides, Culture 349 



Slides, Current 349 



Slides, Microscopical 348, 349 



Slides, Object 348.349 



Slide Boxes for Micro Slides. 349 

 Slide Box for Tar Testing... 26 



Slide Cabinet 349 



Slide Carriers for Staining 



Apparatus 464 



Slide Cover Glasses 350 



Slide Forceps 256 



Slide Holders '.. 350 



Slide Labels 330. 350 



Slide Mailing Cases 350 



Slide Mounting Cells 349 



Slide Rules 363. 444 



Slide Rules, Richmond's 363 



Slide Scale for Milk 363 



Slide Trays 350 



Slide Wire Bridge 403 



Sliding Resistances 224, 225 



Sling Hygrometers 317 



Sling Psychrometers 317 



Smith Ductility Machines 21 



Smith Fermentation Tubes.. 234 

 Smith and Hale lonization 



Cell 399 



Smith's Platinum Crucible.. 409 



Smoking Pipes 404 



Snap Switches 229 



Snips 440 



Soap, Green Oil 444 



Soap, Palm Oil 354 



Sockets for Electrical Con- 

 nections 228 



Sodium Monochromatic Burn- 

 er 366 



Sodium Spoons 462 



Soil Acidity Tester, Truog. . . 456 



Soil Analysis Apparatus 



236, 237, 247, 249. 445-460 



Soil Analysis Flasks. 247, 249, 449 



Soil Analysis Sieves 441 



Soil Augers 452, 463 



Soil Balances 43,51 



Soil Borers 462. 453 



Soil Centrifuges 446. 447 



Soil Filters 236. 237 



Soil Flasks 247. 249. 449 



Soil Grinders and Mills. . .177-181 



Soil Pans 445 



Soil Sieves 440-442 



Soil Thermometers 499 



Soil Tubes 457-459 



Soil Tube Auger 460 



Soil Tube Brushes. . .109, 453. 469 



Soil Tube Hoist 454 



Soil Tube Rack 460 



Solder 460 



Soldering Coppers 46C 



Soldering Irons 460 



Soldering Iron Heaters 118 



Soldering Outfits 460 



Soldering Paste 460 



Solidimeter 315 



Solution Heaters, Electric... 



306. 307 



Solution Scales 42, 43, 51. 54 



Sommer's Hydrometers for 



Asphalt 23 



Soundness Test Apparatus for 



Cement 133 



Soxhlet Condenser 165 



Soxhlet Extraction Appara- 

 tus 231. 232 



Soxhlet Extraction Tubes... 231 



Soxhlet Flasks 231, 247 



Spark Coils 208 



Spark Metal Renewal 288 



Spatulas, All Kinds.. 255, 410. 461 



Spatulas, 1'latinum 410 



Spatulas, Steel 255. 461 



Specie Jars 328 



Species Covers, Botanical.... 96 

 Specific Gravity Apparatus 



for Cement 133 



Specific Gravity Apparatus 



for Gas, Chancel's 281 



Specific Gravity Apparatus, 



Jackson's 133 



Specific Gravity Balances.... 



46, 51, 52 



Specific Gravity Balances, 



Jolly Spring 62 



Specific Gravity Balance, Tor- 

 sion 46 



Specific Gravity Balance, 



Westphal 51 



Specific Gravity Bottles 



24, 104, 105 



Specific Gravity Bottles, Bar- 



rett-Hubbard 24. 104 



Specific Gravity Hydrometers 



311-313. 315 



Specific Gravity Pan. A.S.T.M. 25 



Specific Gravity Tubes 



104, 105, 133. 459 



Specific Heat Apparatus for 



Soils 456 



Specific Resistance Table 628 



Specimen Bottles 103-105 



Specimen Forceps 256 



Specimen Jars... 104, 105, 327, 328 



Specimen Mills 179 



Specimen Mounts, Riker 461 



Specimen Tubes 103. 487 



Specimen Vials 99, 100. 103 



Spectrum Burner 366 



Spectrum Charts 145 



Spectrum Lamp 366 



Speed Counters.. 135, 138, 141. 462 

 Speed Indicators for Centri- 

 fuges 135, 138, 141 



Speed Reducing Gear for Mo- 

 tors 216 



Spence's Lactometer (Hy- 

 drometer) 313 



Spencer Immersion Flask. . . . 475 



Spencer Lamps 345-347 



Spencer Microscopes 339-342 



Spencer Pipettes 404. 475 



Spencer Ribbon Carrier 353 



Page 

 Spencer Rotary Microtomes. . 



362, 353 



Sperm Candles 292 



Spherical Condenser 165 



Sphygmomanometer, Roger's. 87 



Spinthariscope 426 



Spiral Anodes 410 



Spiral Condensers 165 



Spirit Hydrometers 312 



Spirit Lamps 120, 121 



Spirit Levels 61, 333, 334 



Splints 462 



Sponges 410.46:: 



Sponge, Platinum 410 



Spoons, All Kinds... 184, 410. 462 



Spoons for Blowpiping. 184 



Spoons, Combustion 184. 410 



Spoons, Deflagration 184, 410 



Spoons, Platinum 410 



Spoons, Sodium 462 



Spreading Boards, Insect.... 326 

 Sprengel's Specific Gravity 



Bottle 105 



Springs, Watch 512 



Spring Back for Microtome 



Knives 355 



Spring Balances 52, 53 



Spring Board Compactor.... 448 



Spring Clamps 146. 147 



Spring Clips 152 



Spring Divider 200 



Spring Gages 272. 273 



Sprouting Apparatus, Schoen- 



jahn's 300 



Sprouting Cup 300 



Sprouting Media 302 



Sputum Bottles 141 



Sputum Dish 463 



Sputum Shaker 439 



Sputum Tray 463 



Sputum Tubes for Centrifuge 134 



Squares 203. 463 



Squibb's Automatic Burette.. 112 

 Squibb's Separatory Funnel.. 259 



Squibb's Ureometer 509 



Squibb's Urinometers 510 



Stages, Warm, for Micro- 

 scopes 350 



Stage Cable Wire 522 



Stage Micrometers 347 



Staining Apparatus, Electric 464 



Staining Dishes 188 



Staining Jars 328 



Staining Racks 350 



Staining Tray 188 



Stalls, Finger 243 



Stamps, Steel 186 



Stands, Wood, for Test Tubes 



480. 481 



Standard Balls for Hardness 



Testers 304 



Standard Bars for Hardness 



Tester 304 



Standard Calorimeter, Parr... 126 



Standard Candles 292 



Standard Cells 70 



Standard Cell, Weston 70 



Standard Clamps 150 



Standard Color Tubes for 



Kuttner Calorimeter ....85. 157 

 Standard Fermentation Tubes 235 



Standard Hygrometer 316 



Standard Incandescent Lamps 331 

 Standard Milk and Cream 



Test Bottles 358 



Standard Paper Thickness 



Gage 392 



Standard Photometric Can- 

 dles 292 



Standard Pressure Gage 273 



Standard Resistances 223 



Standard Sand for Cement 



Testing 132 



Standard Sieves 441. 442 



Standard Vacuum Gage 273 



Standardized Burettes 112 



Standard! zed Cylindrical 



Graduates 183 



Standardized Thermometers. . 



491-495. 499 



Standard! zed Volumetric 



Flasks 250 



Standard! zed Volumetric 



Pipettes 406 



Star Support for Bunsen 



Burner 123 



Steam Funnels 258 



Steam Heated Stills 197, 198 



Steam Heated Water Baths. . 



513. 614 



