CASEIN. 



work. To the right of the pan is mounted another, for 

 heating the water, and a portable grate runs along a track 

 (h), so as te be rolled under one or the other pan as desired. 



FIG. 1. Heating Pan for the Preparation of Casein. 

 (K= Milk Pan. W= Water Pan. F= Portable Grate.) 



When used for heating the water pan, a door at (i), fitted 

 with a damper, is closed. This arrangement offers numerous 

 advantages, the height to which the flame is admitted in the 

 flue, for instance, being controlled by a damper, whilst the 



FIG. 2. Steam Pan for Casein. 



surrounding brick setting enables the milk to retain the heat 

 better than if merely suspended over an open fire. Finally, 

 the fuel is more fully utilised, since none is uselessly con- 

 sumed, but is employed for heating water. 



