542 



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



Page 



Logwood Paper 391 



Lohnstein Saccharometers. . .. 509 



Long Gas Electrode 398 



Low Flask for Copper Deter- 

 mination 248 



Low Resistance Pyrometers.. 



418-421 



Low Temperature Burners... 



114. 116 



Low Temperature Incubators 



324. 325 



Low Temperature Thermome- 

 ters 491 



Low Temperature Thermo- 

 stat 500 



Low's Copper Assay Flasks.. 248 



Loxol Cement 130 



Lubrication Tester 377 



Luer Syringes 484, 485 



Lummer-Brodhun Photometer 



Sight Box 290 



Lunge Apparatus.107, 247, 279, 372 



Lunge Distillation Flask 247 



Lunge Nitrometers 372 



Lunge Tar Flask 247 



Lunge Weighing Bottle 107 



Luther Capillary Electrome- 

 ter Tube 398 



Luther Platinum Electrode.. 398 



Machines, Cement Testing.... 



131. 133 



Machines, Centrifugal 141-143 



Machines for Compression 



Tests on Cement 131 



Machine, Cork Boring 167 



Machines, Cupel 182 



Machines for Making Gaso- 

 line Gas 289 



Machines, Sampling 432. 433 



Machines, Shaking 438-440 



Machine Screws 436 



Mackey's Oil Tester 379 



Magnalium Balance 40 



Magnet 205 



Magnet Wire 621 



Magnetic Compasses ....164, 482 



Magnification Table 348 



Magnifiers, All Kinds 



61, 169, 304, 334, 335 



Magnifier for Balances 61 



Magnifier for Brinell Tester.. 304 

 Magnifier for Colony Count- 

 Ing 169 



Magnifier Stands, Adjustable. 342 

 Mahler Bomb Calorimeters.. 



127. 128 



Mailing Cases for Micro 



Slides 350 



Mailing Cases for Samples... 264 



Mailing Tubes 336 



Mallets 335 



Manganese Determination Ap- 

 paratus 153, 164 



Manganese Tubes for Color 



Comparison, Camp's 153 



Manila Rope 428 



Mannheim Slide Rule 444 



Mann-Junkers Gas Calorime- 

 ter 286 



Manometers 272. 273 



Mantles for Berkefeld Filters 236 

 Manual for Petroleum In- 

 spectors 377 



Marchand Calcium Chloride 



Tubes 124 



Marchand Drying Tubes 124 



Marine Glue 298 



Marker, Signal 501 



Market Cream Score Cards... 363 



Marking Gage 272 



Marschall Acid Tester 356 



Marschall Rennet Tester 362 



Marsh's Arsenic Apparatus... 16 

 Marshall Apparatus for the 

 Determination of Urea in 



Blood 87 



Martin, Pennock and, Cru- 

 cible 171 



Mask, Face, Respirator 427 



Masons' Chalk line 165 



Mason's Fruit Jars 328 



Mason's Hygrodeik 316 



Mason's Hygrometer 316 



Mason's Water Color Tube. . . 164 

 Massachusetts Institute Blast 



Burner 119 



. Page 



Matches, Safety 336 



Mats, Asbestos 17 



Mats, Cork, "Suberlte". 168 



Matthews Gas Machine 289 



Matrass Holders 94 



Mauls 335, 459 



Maximum and Minimum Ther- 

 mometers 495. 497 



Mazda Incandescent Lamps.. 



331. 345-347 



McCall Aspirator 445 



McCall's Capillarity Tubes 457 



McCall's Mulch Cylinder 450 



McCall's Percolation Appara- 

 tus 451 



McCoy Molecular Weight Ap- 

 paratus 401 



McLeod's Vacuum Gage 273 



Measures, All Kinds 



125 183, 272-274, 



299. 336, 356, 432. 435, 486. 487 

 Measures for Acid in Milk 



Test 356 



Measures. Caliper 125 



Measures, Glass 183, 299 



Measures, Graduated ....183, 299 



Measures, Liquid 338 



Measures. Meter and Yard... 



432. 435 



Measures, Rain 273 



Measures, Tin 336 



Measures. Wire 274 



Measuring Appliances 



125, 183, 272-275, 289, 299, 



304, 336, 432, 435. 486 487 



Measuring Bottle, Bockius... 100 



Measuring Microscopes 343 



Measuring Cones 273 



Measuring Scales for Hard- 

 ness Tester 304 



Measuring Tapes 486. 487 



Measuring Tubes for Gas. . . . 289 



Meat Choppers 178, 179, 181 



Mechanics' Levels 333 



Mechanical Analysis Bottle.. 446 

 Mechanical Drawing Instru- 

 ments 201-203 



Medicine Droppers 4 



Megohm Boxes 222 



Meker Blast Burner 120 



Meker Burners 115 



Melting Crucibles ...170-172. 173 



Melting Furnaces 264. 266 



Melting Ladles 330 



Melting Point Apparatus.... 



18, 23. 336 



Melting Point Apparatus for 



Tar and Pitch 18, 23 



Melting Point Flask 248 



Melting Point Testers for 



Wax 377, 378 



Melting Point Tube 336 



Mendele.leff Charts of the 



Elements 144 



Meniscus Reader for Burettes 113 

 Manzles' Molecular Weight 



Apparatus 401 



Mercurial Barometers ....64. 65 

 Mercury Distilling Apparatus 



199, 427 



Mercury Manometers 273 



Mercury Pipettes 405 



Mercury Plumb Bob 412 



Mercury Reservoirs 110 



Mercury Retorts 427 



Mercury Still. Hulett 199 



Mercury Wells for Armored 



Thermometers 492 



Metal Cases for Thermome- 

 ters 492 



Metal Frame Thermometers. . 496 



Metal Model Sextant 438 



Metal Resistance Table 528 



Metal Scale Thermometers... 495 

 Metal Testers, Hardness. .303-305 



Metal Travs 604 



Metallic Tapes 486, 487 



Metallic Thermometer 49 



Metallic Tubing, Flexible 431 



Metallographlc Apparatus.... 



337, 338 



Metallographlc Emery Paper. 3 

 Metallographlc Grinders .... 337 

 Metallographlc Hack Saw. . . . 337 



Metallographlc Polisher 337 



Metallographic Polishing 



Alumina 338 



Meteorological Set 338 



Meteorological Shelter 338 



Meters, Air 12, 285, 289 



Pase 



Meters, Electric 209-213 



Meters, Gas 284, 285. 289 



Meters, Gas, for Junkers Ca- 

 lorimeters 284, 285, 289 



Meters, Turbidity 159. 507 



Meter Measures 432, 436 



Meter Sticks 435 



Meter Stick Clamps 150 



Methane Determination Ap- 

 paratus 27fi 



Metric Charts 145 



Metric Measures, Liquid 336 



Metric Rules 432 



Metric Tables 145 



Metronomes 338 



Metropolitan Argand Burner, 



Carpenter's 292 



Meyer Bulb Tubes 8. 476 



Meyer Sulphur Apparatus.... 476 

 Meyer Vapor Density Appa- 

 ratus 511 



Mica Chimney 114 



Mica Sheet 525 



Mice Holders 13 



Micro Burners, Bunsen's 114 



Micro-Colorimeter 156 



Micro Cover Glasses 350 



Micro Labels for Slides.. 330. 350 



Micro Lamps 345-347 



Mlcro-Saccharimeter 86 



Micro Slides 348. 34fl 



Micro Slide Boxes 349. 350 



Micro Slide Cabinets 349 



Micro Slide Labels 330. 350 



Micro Slide Mailing Cases. . . . 350 



Micro Slide Trays 350 



Micro Warm Stages 350 



Micrometers, Eyepiece. .. .347. 520 



Micrometer, Stage 347 



Micrometer Calipers 125, 391 



Micrometer Gages 125. 391 



Micrometer Microscopes. .304. 343 



Micrometer Oculars 344 



Microscopes and Accessories. 



339-351 



Microscope, Demonstration. . . 341 

 Microscopes, Dissecting. . 341, 342 

 Microscopes, Measuring. .304, 343 

 Microscopes. Micrometer. 304. 343 



Microscope, Simple 341 



Microscope Eyepieces 344 



Microscope Illuminators. . 344. 345 

 Microscope Incubator. Elec- 

 tric 345 



Microscope Lamps 345-347 



Microscope Lamp Distribut- 

 ing Box 347 



Microscope Micrometers 347 



Microscope Nosepieces 348 



Microscope Objectives, Achro- 

 matic 348 



Microscope Support 343 



Microscopic Slide Boxes 349 



Microscopic Slide Forceps.... 256 

 Microscopic Slide Mailing 



Cases 350 



Microscopical Cover Glasses. . 350 

 Microscopical Labels ....330. 350 

 Microscopical Object Slides. . 



348. 349 



Microscopical Slide Boxes.... 34^> 

 Microtomes and Accessories.. 



351-355 



Migration of Ions, Apparatus 



for 39!) 



Migration Tubes 399 



Milk Analysis Apparatus. . 35R-364 



Milk Analysis Bottles 357, 358 



Milk Bottle Brushes 109 



Milk Capsules 129. 187 



Milk Centrifugal Machines... 



359-361 



Milk Dishes 129, 187, 358. 409 



Milk Dish. Platinum 409 



Milk Extraction Apparatus.. 358 



Milk Hydrometers 313. 314 



Milk Jar (Bottle) 357 



Milk Pipettes 362 



Milk Pipette for Counting 



Bacteria 404 



Milk Record Charts 358 



Milk Test Bottles 357. 358 



Milk Test Brushes 109 



Milk Tester or Pioscope, Hee- 



ren's 362 



Milk Testers, Centrifugal. 359-Sfil 

 Milk Testing Apparatus. .35(5-364 

 Milk Testing Balances. 41, 47, 357 



Milk Tube for Centrifuge 



135, 138. 141 



