The Pasteurization of Milk from the 

 Practical Viewpoint 



CHAPTER I 



PASTEURIZATION IN GENERAL 



The guarding of food supplies in large towns 

 and cities is one of the most important functions of 

 government activity. This activity, like all forms 

 of organized effort, has been a gradual develop- 

 ment. In the most primitive communities, individ- 

 uals naturally felt a certain care over the food 

 which they ate. This interest was instinctive and 

 fundamental, since each individual was conscious 

 that some foods were dangerous. He therefore 

 obeyed the law of self-preservation when he se- 

 lected his food. 



As the homes of individuals became more con- 

 gested on account of the increase in population, 

 it grew to be increasingly difficult for the indi- 

 vidual to select the food which he ate. He there- 

 fore came to depend more and more upon the 

 judgment of other people who had either used 

 similar food before or else knew how it was pro- 

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