228 



MASS. EXPERIMENT STATION BULLETIN 187. 



Table XLFV. — A Determination of the Number of Bacteria per Cubic 

 Centimeter in Clarified and Unclarified Commercial Milk Held at lJj° C. 

 and Plated at Intervals of Twenty-four Hours. 



Sample. 



24 Hours. 48 Hours. 



I. . 



II. 



Ill, 



IV, 



V, . 



VT, 



VII, 



VIII. 



IX. 



X, 



XI. 



Before clarificatior 

 After clarification, 



Before clariication. 

 After clarification, 



Before clarification, 

 After clarification, 



Before clarification. 

 After clarification. 



Before ckrification, 

 After clarification. 



Before clarification, 

 After clarification. 



Before clarification, 

 After clarification, 



Before clarification, 

 After clarification. 



Before clarification. 

 After clarification. 



Before clarification. 

 After clarificafton, 



Before clarification. 

 After clarification. 



36,000 

 34,000 



3,600 

 2,100 



28,000 

 39,000 



2,500 

 2,350 



7,750,000 

 6,340,000 



4,000,000 

 2,740,000 



500,000 

 450,000 



330,000 

 240,000 



4,500,000 

 4,000,000 



1,500,000 

 1,200,000 



1,750,000 

 3,100,000 



9,958,000 

 9,950,000 



2,300 

 3,200 



40,000,000 

 27,400,000 



14,600,000 

 19,600,000 



20,400,000 

 13,500,000 



14,500,000 

 10,000,000 



21,200,000 

 19,200,000 



20,000,000 

 25,000,000 



5,600,000 

 5,200,000 



67,100,000 

 50,600,000 



210,000,000 

 220,000,000 



230,000 

 190,000 



539,000,000 

 465,000,000 



201,000,000 

 209,000,000 



120,000,000 

 160,000,000 



41,200,000 

 40,000,000 



340,000,000 

 210,000,000 



500,000,000 

 420,000,000 



250,000,000 

 250,000,000 



80,000,000 

 40,000,000 



7,500,000 

 15,000,000 



350,000,000 

 400,000,000 



25,000,000 

 39,000,000 



752,000,000 

 441,000,000 



400,000,000 

 187,000,000 



237,000,000 

 135,000,000 



166,000,000 

 100,000,000 



750,000,000 

 450,000,000 



650,000,000 

 560,000,000 



Table XLV. — A Determination of the Number of Bacteria per Cubic Centi- 

 meter in Clarified and Unclarified Certified Milk Held at 10° C. and 

 Plated at Intervals of Twenty-four Hours. 



