MONTHLY BULLETIN. 289 



Example of Temperature Below 60" F. 



Temperature of juice - 56° F. 



Balling of juice 18' 



Under column 20° B. and opposite 56° F. is found .11°. Subtract 

 this from 18° and the corrected reading will be 17.89° B. 



Equipment. 



The Balling saccharometcr should be one that is standardized at 60° F. 

 and should have a scale reading from 0° to 30° B. in tenths of a degree. 

 A Fahrenheit chemical thermometer graduated from 0° to 212° F. is a 

 convenient type for testing the temperature of the juice. A metal or 

 glass cylinder approximately 1^ inches by 12 inches is suitable for hold- 

 ing the sample to be tested. The instruments and the glass cylinder 

 can be obtained from any large chemical supply firm in San Francisco 

 or Los Angeles direct, or through a local clruggist. A tin or brass 

 cylinder can be made by any tinsmith or plumber, and because of its 

 greater durability is preferable to a glass cylinder. 



