170 



DAIRY TFX^IIXOLOGY 



k'Ctly in.t(i tlic si'al. When IIk' pressure from tlic pump 

 is sufl'iciciit, the wih'o is forced open, hut the space be- 

 tween tile disk and the seat is so small that when the fat 



I'll:. 41. — Tlie IIiiiu'v cone machine. 



glol)ules are forced t1\rouu;li tlie\' are separated into tin}- 

 particles. 



The homofj;eni/A'r is and has been used for manufacturing 

 cream from skim milk and liuller. Some ]ia\'e e\'en gone 

 so far as to make llie skim milk from nn'lk powder i\ml mixed 

 it with unsahed storage or fresh liutter. Finislied ]irod- 

 ucts made and offered for sale in this manner must be 



