Distilled Water 



of the 



Highest 



Purity 



For Serological 

 and Laboratory 

 Practice is Fur- 

 nished Auto- 

 matically and 

 Economically 

 by the 



Barnstead Water Still 



The Natural Choice of Discriminating Workers 



Costing more than most stills, it is worth much 

 more in comparison, as the principle of operation and ar- 

 rangement of heating reduces the operating expense to a 

 minimum. 



The distilled water, with the gas heated type, is pro- 

 duced at about 1|^ per gallon, less than half the cost of 

 ordinary distilled water furnished by most stills. 



For Gas Heating — Capacities | to 10 Gallons per hour 

 For Electric Heating — Capacities J to 10 Gallons per hour 

 For Steam Heating — Capacities 1 to 100 Gallons per hour 



Send for free booklet "Water Distilling Apparatus" 



Our Bacteriological Apparatus Catalog 

 illustrates and describes all the latest 

 appliances — Blood and Urine Testing 

 Apparatus, etc. Write for your copy 



EIMER & AMEND 



FOUNDED 1851 



Laboratory Supplies 

 NEW YORK and PITTSBURGH, PA. 



THE WAVERLY PRESS 

 BALTIMORE. U. 5. *. 



