ARITHMETIC OF MILK AND MILK PRODUCTS 269 



16. CONVERTING QUEVENNE INTO BOARD OF 

 HEALTH LACTOMETER DEGREES 



Rule. Divide the Quevenne reading by .29. (See 

 p. 182.) 



17. CONVERTING BOARp OF HEALTH INTO 

 QUEVENNE LACTOMETER DEGREES 



Rule. Multiply the Board of Health reading by 

 .29. (See p. 182. ) 



18. CORRECTING BOARD OF HEALTH LACTOM- 

 ETER READING FOR TEMPERATURE 



Rule. For each degree F. of temperature above 

 60 F. add .3, and for each degree below 60 F. sub- 

 tract .3. (See p. 184.) 



19. CHANGING VOLUME INTO WEIGHT 



Rule. To convert a known volume of a liquid 

 into pounds when the specific gravity is known, mul- 

 tiply the specific gravity of the liquid by the weight 

 of an equal volume of water. Example : One gallon of 

 water weighs 8.33 pounds; what is the weight of a 

 gallon of milk whose specific gravity is 1.032? Mul- 

 tiplying 8.33 by 1,032, we have as the answer 8.6 

 pounds. 



20. CHANGING POUNDS OF MILK INTO QUARTS 



Rule. Divide the number of pounds of milk by 2.15. 

 Example: How many quarts of milk in 100 pounds? 

 iocH-2i5.:=46.5 quarts. 



