MBW 8IBII8 



TOL. XXXVI. No. 920 



Friday, August 16, 1912 



i^iNOLX Copies, lb Ct». 



ANNUAL SDBSCRimoN, 15.09 



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Barnstead Automatic Water Stills 



The most popular for laboratory purposes, and considered by many eminent 

 chemists to be by ta,r the m<ist efficient on the market. 



The product of these apparatus represents the highest degree of purity ever 

 reached by any proceps of distillation. 



The operation wlieu once begun is thoroughly effective, automatic and con- 

 tinuous ; removes ammonia and all gaseous and organic impurities, and renders 

 water chemically pure. 



QAS HEATED, sizes from -J- to 10 gallons per hour 



STEAM HEATED, sizes from 5 to 75 gallons per hour 



The steam operated stills are considerably used for furnishing pure vrater, both 

 for laboratory and drinking v)urpases; for the latter the stills can be equipped with 

 a special arrangement for making the water thoroughly palatable. 



Write to-day for d s.riptive booklet " Water Distilling Apparatus" 



EIMER & AMEND (Established ISSl) NEW YORK 

 IIeadquaeteks fob Educational Laboratory Supplies 



