CREAMERY BUTTER }LIK1XC 



35 



onc-tcntli of a lactometer degree for every degree of teiii- 

 peratiire above 60. A decrease in temperature would 

 result in a corresponding increase in the specific gravit}'. 

 For every degree below 60, therefore, we subtract one- 

 tenth degree from, and for every degree above 60 we 



/ 



Pig. 13. 

 Luctom 

 eter. 



Fig. 14.— Lactom- 

 eier cylinder. 



add one-tenth degree to, the lactometer reading. Ex- 

 amples : 



1. Lactometer reading is 32.5 at a temperature of 55. 

 Corrected reading is 32.5 less .5, equals 32. 



2. Lactometer reading is 31.7 at a temperature of 63. 

 Corrected reading is 31.7 plus .3, equals t,2. 



Interpretation of Lactometer Reading. In the chap- 

 ter on milk we learned that normal milk has an average 



