LABORATORY SUPPLIES AND CHEMICALS 



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1094 



1095 



1097 



1092 



1093 



1096 



SPECIAL APPARATUS REQUIRED FOR EVAPORATION TEST 



1092 EVAPORATING DISH, of pure nickel, with flange and handle $1.90 



SPECIAL APPARATUS REQUIRED FOR SLIDE TEST 



1093 SLIDE BOX, of copper, with six corrugations $9.00 



i 



SPECIAL APPARATUS REQUIRED FOR LIGHT OIL TEST 



1094 HEMPEL DISTILLING TUBE $0.35 



SPECIAL APPARATUS REQUIRED FOR MELTING POINT OF HARD 



PITCH TEST 



1095 AIR MELTING POINT OVEN, of copper, with mica window, removable 



tray, etc $12.75 



SPECIAL APPARATUS REQUIRED FOR MELTING POINT OF PITCH TEST 



1096 PITCH MOULD, consisting of iron clamps with brass block $5.00 



1096a THERMOMETER, for melting point, etched on stem, 0-80 C. in l/5ths... 4.50 

 1096b THERMOMETER, for melting point, etched on stem, 60-140 C. in l/5ths. . 4.50 



SPECIAL APPARATUS REQUIRED FOR CONSISTENCY OF REFINED TARS 



AND SOFT PITCH TEST 



1097 SCHUTTE PENETROMETER, with one plug $3.50 



1097a PLUGS, only, for above Penetrometer, each 25 



