216 MASS. EXPERIMENT STATION BULLETIN 187. 



Table XLII. — Bacteria in Certified Milk from Individual Cows before 

 and after Clarification — Concluded. 



Table XLIII. — Bacteria in Commercial Milk before and after Clarification. 



The following superficial and provisional conclusions may be drawn 

 from these tables: — 



1. In the case of fresh certified milk about 70 per cent, of the tests give 

 an increase in bacterial content in unclarified milk over the same milk 

 clarified. This leaves 30 per cent, showing an increase after clarification. 



2. In the case of commercial milk about 85 to 90 per cent, show an 



