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



543 



Page 



Mills, Assayers' 175-181 



Mills. Grinding 175-181 



Mills. Rolling 180 



Mill, Sugar Cane 179. 181 



Miller Parafflne Bath 393 



Mllliammeters and Ammeters 



209-213 



Milling Machine, Johnson.... 160 

 Millivoltmeters and Voltme- 

 ters 209-213 



Mine Air Analysis Apparatus 



276. 277 



Mine Air Testers 276 



Miner's Horn 298 



Miner's Lamp 332 



Miner's Washing Pan 298 



Minerals for Blowpiping. . . . 94 

 Minerals. Radio-Active...425. 426 



Mineral Collections 364. 365 



Mineral Oil Distillation Ap- 

 paratus 374, 378 



Mineral Specimens 364, 365 



Mineralogical Collections.364. 365 

 Mineralogical Hammers. . .94. 303 

 Mineralogical Specimen 



Trays 365 



Miniature Incandescent 



Lamps 331 



Miniature Microscope Lamp. . 346 

 Minimum Thermometers. 495, 497 

 Minot Micro Slide Cabinet... 349 



Minute Glasses 434 



Miquel Culture Flasks 182 



Mirrors for Galvanometers.. 207 



Mitre Box, Olmstead's 366 



Mitscherlich Eudiometer .... 230 



Mitscherlich Potash Bulb 413 



Mittens, Asbestos 297 



Mixing Bottles 183, 327 



Mixing Cylinders, Precision.. 183 



Mixing Jars 183. 327 



Mixing Pipettes for Haemacy- 



tometers 85 



Mixing Scoops 432. 435 



Models, Atom 366 



Models, Valence, Mead's 366 



Mohr's Alkalimeters 129 



Mohr's Burettes 111. 112 



Mohr's Carbon Dioxide Appa- 

 ratus 129 



Mohr's Clamps 147 



Mohr's Pinchcocks 147 



Mohr's Pipettes 405. 406 



Mohr's Potash Bulb 413 



Moist Chambers 181 



Moisture Absorption Appara- 

 tus 445 



Moisture Balances. . .42, 49, 54. 55 

 Moisture Determinator for 



Gas 285 



Moisture Dishes 187 



Moisture Equivalent Centri- 

 fuge 447 



Moisture Flasks 248 



Moisture Graduates 183. 301 



Moisture Ovens 383-388 



Moisture Scales 42, 49. 54, 55 



Moisture Test Cylinders. 183. 301 



Moisture Testers 301. 361 



Moisture Tester Thermome- 

 ters 302. 492 



Molds for Asphalt 23 



Molds, Briquette, Asphalt.... 23 

 Molds, Briquette, Cement.... 131 



Molds for Cement 131. 132 



Molds, Cubical for Asphalt.. 23 

 Molds, Cubical for Cement... 132 



Molds, Cupel 182 



Molds, Pitch 22. 23 



Molds. Pouring 366 



Molds for Soil 451 



Molding Machines, Cupel.... 182 

 Molecular Weight Determina- 

 tion Apparatus 400, 401 



Monkey Wrenches 523 



Monochromatic Illuminators. 366 

 Morse Calibrating Burettes.. 112 



Mortars, All Kinds 366. 367 



Mortar Grinder, Steel 177 



Motors, Electric. .126, 128, 214-216 



Motors, Variable Speed 



126, 128, 214, 373 



Motors, Water 368 



Motor Countershaft 216 



Motor Generators 217. 218 



Motor Speed Reducing Gear. 216 



Mounts, Riker Botanical 95 



Mounts. Riker Specimen 461 



Mounting Boards. Botanical. . 95 

 Mounting Cells, Slide 349 



Page 

 Mounting Paper, Botanical. . 95 



Mouse Jars 13 



Mouth Pieces for Blowpipes.. 92 

 Muencke Blast Apparatus. . . 92 



Muencke Blower 92 



Muencke Filter Pump 242 



Muencke Gas Analysis Appa- 

 ratus 279 



Muencke Gas Washing Bottle 294 



Muffles, All Kinds 265-269. 367 



Muffles, Alundum 367 



Muffles, Clay 367 



Muffles, Silica 367 



Muffle Furnaces 263. 265-269 



Muffle Furnace, Gary's 269 



Muffle Furnaces. Fletcher.... 265 

 Muffle Furnaces, Hoskins 



Electric 263. 266 



Muffle Furnaces, Multiple 



Unit Electric 267 



Muffle Furnace, Wlessnegg. . 269 



Muffle Scrapers 436 



Mulch Cylinders 450 



Mullen's Paper Tester 391 



Multiple Tube Burners 



115, 116. 119 



Multiple Unit Electric Com- 

 bustion Furnaces 261 



' Multiple Unit Electric Cru- 

 cible Furnace 263 



Multiple Unit Electric Hot 



Plates 310 



I Multiple Unit Electric Muffle 



Furnaces 267 



i Multiple Unit Electric Organ- 

 ic Combustion Furnace.... 261 



Multiplex Slide Holder 350 



Multiplex Slide Rule 444 



Murrill's Gas Pressure Regu- 

 lator 294 



Museum Jars 327. 328 



Muslin Buffing Wheels.. .412. 413 



Muter's Oil Tube 378 



Myers Colorimeter 157 



Nafis' Acid Dippers 356 



Nafis' Acid Tester 356 



Nafis' Salt Tester 363 



Nafis 1 Stirring Rod 357. 363 



Nafis' Tester for Test Bottles 



363. 364 



Nail Sets 368 



Naples Jars 328 



Naples Paraffine Bath 393 



Naples Staining Jars 328 



National Fuller Battery 68 



National Rheostats 224 



Natural Gas Analysis Appa- 

 ratus 277 



Natural Gas Burners 118 



Nead's Valence Models 366 



Nebraska Soil Auger 452. 453 



Needles, Dissecting 190 



Needles, Gilmore 132 



Needles, Hypodermic ....485. 486 



Needles. Inoculating 326 



Needles, Syringe 485. 486 



Needle Apparatus, Vicat 133 



Needle Holders 190. 326 



Nernst Migration Tube 399 



, Nesbitt Carbon Combustion 



Bulbs 8, 9 



Nessler Cylinders 153 



Nessler Cylinder Support.... 154 



Nessler Tubes 153 



Nessler Tube Support 154 



Nets for Foot Blowers 88 



Nets for Insects 226 



Neubauer-Bfirker Haemacy- 



tometer 84 



New York Board of Health 



Distilling Apparatus 520 



New York Testing Labora- 

 tory Drying Ovens 21 



New York Testing Labora- 

 tory Penetrometers 24 



Nicholson Hydrometers 316 



Nlchrome Triangles 505 



Nichrome Wire Gauzes 523 



Nickel Alloy Wire 522 



Nickel-Chrome Gauze 523 



Nickel Chromium Triangles.. 505 

 Nickel Chromium Pyrometer 



Protecting Tubes 420 



Nickel Crucibles 171 



Nickel Crucible Tongs 502 



Nirkel Dishes 187 



Nickel-Plated Copper Beakers 78 



Page 



Nickel Tongs 602 



Nickel Weighing Scoop 62 



Nickel Wire 522 



Nickel Wire Gauze 523 



Nickeled Burette Clamp 146 



Nicol Specific Gravity Tube. . 104 



Ninhydrin 82 



Nippers 411 



Nipples for Air Pumps 471 



Nitrogen Apparatus, Van 



Slyke's 372 



Nitrogen Bulbs 371 



Nitrogen Determination Ap- 

 paratus 153. 369-373 



Nitrogen Filled Thermome- 

 ters 491 



Nitrogen Gas 275 



Nitrogen, Urea and Ammonia 

 in Urine, Folin Apparatus 



for 608. 509 



Nitrometers 371. 372 



Nitrous Oxide Gas 275 



Nixtamal Grinding and Pul- 

 verizing Mill 178 



Nodon Valve 219 



Non - Corrodible Laboratory 



Burner 114 



Non-inductive Resistances... 227 



Normal Burettes 112. 113 



Normal Differential Ther- 

 mometers. Beckmann's .... 493 

 Normal Elements, Cadmium. 397 



Normal Flasks 250 



Normal Graduates 183 



Normal Mixing Cylinders.... 183 



Normal Pipettes 406 



Normal School Crucibles. 



Skidmore's 174 



Normal Solution Flasks 250 



Norris Potash Bulb 413 



Norris Sulphur Apparatus... 476 

 Nosepieces for Microscopes.. 848 

 1 Novy Anaerobic Culture Ap- 

 paratus 11 



Novy Cover Glass Forceps... 256 



Novy Culture Jars 11 



Numbers, Steel 186 



Objectives, Achromatic 348 



Objectives for Microscopes. . 348 



Ocular Micrometers 344 



Ocular Micrometer Disks.... 347 



Oil of Cedar 345 



Oil for Pumps 416 



Oil Burette 378 



Oil Burners 122 



Oil Cans 37S 



Oil Decanting Tube 378 



Oil Distilling Apparatus. 374. 378 

 Oil Feeder for Flotation Ma- 

 chine 251 



Oil Freezer, Tagliabue 377 



Oil, Fusel, Determination Ap- 

 paratus 271 



Oil Heated Parafflne Ovens . . 



394. 395 



Oil Measuring Device, Auto- 

 matic 302 



Oil Sample Bottles 100 



Oil Samplers 379 



Oil Sampler and Water Indi- 

 cator 380 



Oil Stills 198. 199, 374, 378 



Oil Stones 373 



Oil Tables. Tycos 378 



Oil Testing Apparatus. .. .373-380 

 Oil Testing Machine, Thurs- 



ton 377 



Oil Thermometers. . . .495. 496, 497 

 Oil Tubes for B. S. in Petro- 

 leum 135. 140. 374 



Oil Tubes for Centrifuges... 



135, 140, 374 



Oil Tube. Muter's 378 



Oiled Silk 443 



Ointment Pots 328 



Oldberg's Percolators 395 



Olmstead's Mitre Box 366 



Olsen's Testing Machines for 



Cement 131. 133 



Opaque Fused Silica Arsenic 



Tube 17 



Opaque Fused Silica Capsules 162 

 Opaque Fused Silica Carbon 



Flask 247 



Opaque Fused Silica Casse- 

 roles 130 



