EXPERIMENT STATION BULLETINS. 



Table II 

 Summary of Table I. 



565 



In a previous paper the following provisional classification was used to 

 divide the samples of milk into classes depending upon the use to which they 

 are now put in dairy practice. 



Table III 

 ' Provisional Classification of Milk. 



This interpretation of results will probably have to be changed somewhat 

 as more extensive data are obtained. The standard for milk intended for 

 condensing for instance will probably have to be shifted closer to that of 

 milk suitable for milk plant supply and cheese making. 



All of the samples tabulated in Table I were taken from the cans of farmers 

 as the milk was delivered at the city milk plant. 



By weighing the samples scoring 75 or better on the previous test into a 

 separate vat the milk of excellent keeping quality may be separated from the 

 milk of poor keeping quality, the better grade of milk being used for market 

 milk purposes and the poorer grade for skimming. This plan may be used 

 as a basis for paying a bonus on the better grade of milk. To divide the 

 samples into two grades it would be necessary to make but one pH reading 

 for each sample at the end of eight hours. A weekly record sheet is shown 

 as Table IV. 



