r"?«' M.-5^^ 



New Series 

 Vol. LI, No. 



Friday, June 25, 1920 



Single Copies, 15 Crs. 

 Annual Subscription, $6.00 



FREAS ELECTRIC 



OVENS 

 WATER BATHS 

 TUBE FURNACES 



THERMOSTATS 

 INCUBATORS 

 STERILIZERS 



DRYING — General Analytical — Temperature range up to i8o° C. 



HIGH TEMPERATURE— For baking tests on Varnish, Enamel, Bread, etc.— tern- 

 perature up to 300° C. 



COMBINATION— Oven and incubator for general analytical and bacteriological 

 work. 



FORCED AIR — For rapid moisture removal — temperature up to 260° C. 



REVOLVING SHELF— A. S. T. M. Standard for Asphalt Tests. Temperature to 

 i8o° C. 



VACUUM — For moisture determinations at low temperatures where high tempera- 

 tures would cause decomposition. 



CONDITIONING — For accurate moisture tests on hygroscopic materials, textiles, 

 paper, wood, various chemicals. 



WATER BATH— For constant temperature digestion, dye tests, etc. Temperature 

 control within %° C. 



TUBE FURNACE— For various determinations. 



INCUBATORS — General Biological work — temperature range from 20° C. to 70° C. 



STERILIZERS — General Medical and Bacteriological work. 



THERMOSTATS— Accurate to 5%^° C— For Physico-chemical, botanical investiga- 

 tions, etc. Conductivity, Sp. Gravity, Plant Growth, culture experiments. 



Tnsnd 



NEW YORK 

 3rd Ave, ISth— 19lh St 



PITTSBURGH BRANCH 

 2011 Jackion Arcade 



have come to be known as headquarters for 



FREAS ELECTRIC EQUIPMENT 



