Bacteria and .Butter- 



A quantitative determination of the bacteria found in milk 

 and cream when, treated in machinery of this class almost 

 always shows a degree of variation in results that is not to 

 be noted in the discontinuous apparatus. 



FIG. 29. Reid's Continuous Pasteurizer. 



Harding and Rogers l have tested the efficiency of one 

 of the Danish type of continuous pasteurizers. These ex- 

 periments were made at 158, 176 and 185 F. They 



* Harding and Rogers, Bull. 182, N. Y. (Geneva) Expt. Stat., Dec., 1899. 



