146 MILK HYGIENE 



in which the stream of warm milk works upon the incom- 

 ing cold milk. Both parts have the same construction, 

 which is easily seen from Figs. 10 and 11. Other ma- 

 chines of this kind (for example, Mor's regenerative milk 

 heater. Fig. 12), are simpler in that both processes take 

 place in the same machine. For sterilizing milk meas- 

 ured into bottles, machines which are described and 

 figured on pages 136 and 137 (Fig. 9) are used. 



