32 A DAIRY LABORATORY GUIDE 



When milk is watered all of the solids are re- 

 duced in the same proportion. It has been found that 

 16.66 per cent of the S. N. F. was removed by water- 

 ing; therefore, according to the above rule 16.66 per 

 cent of the fat must have been removed by water- 

 ing. But 26.19 per cent of the fat was removed; 

 therefore the difiference between 26.19 P^r cent and 

 16.66 per cent will show what is removed by skim- 

 ming; 26.19 — 16.66=9.53% removed by skimming. 



