148 EVAPORATED MILK MOJONNIER CONTROLLER 



dispensing burette. This is the amount contained between the 

 upper two graduations on the burette. To cup marked No. 2 

 add two charges, to cup No. 3 add three charges, to cup No. 4 

 add four charges. Dispensing burette furnished with the con- 

 troller indicates how the above quantities are to be added ; the 

 burette is graduated into four separate charges. The unit with 

 one single charge contains the equivalent of one ounce of sodium 

 bicarbonate, to one thousand pounds of evaporated milk. Each 

 successive charge is a multiple of this unit. In dispensing the 

 bicarbonate solution, it is best not to fill the bottle more than 

 half full. When filling the burette, the solution should be 

 allowed to flow into it slowly in order not to trap in the air. If 

 air is trapped into the burette, it is difficult to remove it, and 

 in such a case it is best to run out whatever solution may be in 

 the burette and to put in a new supply. 



Whenever the quality of the milk is very abnormal, it may 

 be necessary to add more than above indicated number of 

 charges of bicarbonate solution to the sample cans. In such 

 cases any multiples of the above number of charges may be 

 added. The ratio of ounces of bicarbonate to one thousand 

 pounds of milk will remain the same, being increased simply by 

 the number of charges added to each sample can. 



Preparation of the Five Sample Cans for the Sterilizer. 

 After the five open-top cups have been treated with bicarbonate 

 as indicated in the preceding section, they are transferred to the 

 Torsion Balance and exactly six ounces of milk is weighed into 

 each cup. This can be done by taring the entire set of empty 

 cups, and then weighing six ounces of evaporated milk into each 

 separate cup. 



One set of five empty cans is now marked in the same man- 

 ner as the cups to which the bicarbonate solution was added, 

 namely as follows : X can containing no bicarbonate ; 1 = can 

 containing equivalent of one ounce bicarbonate per thousand 

 pounds of evaporated milk ; 2 can containing equivalent of 

 two ounces per one thousand pounds of evaporated milk; 3 = 

 can containing equivalent of three ounces per one thousand 

 pounds of evaporated milk, and 4 can containing equivalent of 

 four ounces per one thousand pounds of evaporated milk. 



Next the contents of the five open-top cups are transferred 



