SCIENCE-ADVERTISEMENTS 



A INBW METHOD 



FOR THE 



DETBRMIIVATIOIS OF? URBA 



IN 



URirSB OR BUOOD 



ARLCO-UREASE is a dry, soluble Powder, active and standardized, 

 prepared after Van Slyke's method and containing the urea-splitting 

 enzyme of the soy bean. 



Samples and literature on request. 



Manufactured only by 



THe Arlington Ohemical Oo., 



Vonkers, IN. V. 



Sargent's Automatic Water Stills 



PATENTED 



For Gas, Gasoline or Steam Heat 



These Stills are made ot copper and brass, heavily nickel plated on 

 the outside and well tinned lined on the inside, simple and durable in 

 construction. All parts are readily accessible for cleaning, easily 

 operated and guaranteed to give satisfaction. The burners for gas 

 are adjustable for use with all city or gasoline gas. 



Capacity 

 Capacity 



Capacity 

 Capacity 



Capacity 

 Capacity 

 Capacity 



FOR GAS 



J gallon per hour (one burner) . - . 

 1 gallon per hour (two burners) 



FOR GASOLINE 



^ gallon per hour (one burner and tank) 



1 gallon per hour (two burners and tank) 



FOR STEAM 



2 gallon per hour --..-. 



1 gallon per hour ------ 



2 gallons per hour ------ 



Write for Discount euid Terms 



$25.00 

 35.00 



30.00 

 40.00 



35.00 

 45.00 

 70.00 



E. H. SAROEINT & CO. 



Importers and Dealers In Chemical, Assay, Microscopical, Bacterloloslcal Apparatus and Supplies 

 125-127 W. Lake Street CHICAQO 



