(Trade Mark) 



BACTO-DEXTROSE 



AND 



BACTO-LACTOSE 



These are sugars of high purity, especially stand- 

 ardized in our laboratories to meet the needs of the 

 bacteriologist and bio-chemist. 



They will be found to have a uniform complete 

 solubility, colorless and brilliant solution, low ash, 

 low moisture, and freedom from nitrogen, heavy metals, 

 chlorides, and other sugars, and not more than a trace 

 of chlorides and sulphates. 



Our unequivocal guarantee stands behind these 

 products. They are carried in stock by the principal 

 dealers in scientific supplies. If your dealer cannot 

 furnish, we will fill your order direct. 



Literature, samples, and quotations on request. 

 If you wish to be on our mailing list, send us your 

 name and address. 



DIGESTIVE FERMENTS CO. 



DETROIT, MICHIGAN, U. S. A. 



