FROM THE PRACTICAL VIEWPOINT 



ployed, it is necessary that certain definite regula- 

 tions be adopted which shall specify on broad lines 

 the form of apparatus which must be used, how 

 it shall be installed and how it shall be operated. 

 The construction and arrangement of the build- 

 ings and of the various rooms may be specified, it 

 having been determined by previous experience 

 that such and such apparatus and surroundings 

 operated and handled in such and such a way will 

 produce milk which will be of the character de- 

 sired. With these regulations in force, it is pos- 

 sible, by frequent and careful inspections made of 

 pasteurizing plants, to determine whether or not 

 the legal regulations are being faithfully observed. 

 If it is found that they are complied with, then it 

 is logical and safe to conclude that the milk pro- 

 duced is of suitable character, and will satisfac- 

 torily respond to all suitable chemical and bac- 

 teriological tests which may be applied. 



As a matter of fact, neither method of control 

 is used by authorities to the exclusion of the other, 

 but a combination of the two methods is found to 

 be the most satisfactory. In some cities the em- 

 phasis is placed upon laboratory tests, with in- 

 spections made to confirm the results. In other 



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