550 SCIENCE PROGRESS 



The maintenance of the low temperatures is accomplished by 

 means of refrigerating machinery and insulated rooms specially 

 designed to meet the precise requirements of the hospital. The 

 general work performed by the machinery is as follows : 



(i) The manufacture of ice for use in the milk-laboratory 

 (modifying room). The ice is made so as to fit exactly the 

 tanks previously referred to, thus making for economy as the 

 waste due to breakage is obviated. 



(2) The maintenance of the milk in the storage cabinets 

 attached to the modifying room and to each ward at a tempera- 

 ture not exceeding 40 Fahrenheit. 



(3) The reduction of all solutions used in the modifying room 

 to a temperature not exceeding 40 Fahrenheit. This applies to 

 the whey, lactose solution and the sterile water. 



By these means the food of the infant is protected from all 

 the changes which usually occur in it as a result of storage — 

 from the time of milking onwards the low temperature is 

 consistently maintained. Just before modified milk is given to 

 the infant, it is restored to the normal temperature of milk by 

 warming it to ioo° Fahrenheit. 



