Im'provement of Missouri Herds. 



387 



moval of the fat raises it, so that milk that has been both skimmed 

 and watered, may have the same gravity as normal milk. This 

 double fraud, however, is easily detected when the Babcock test is 

 used jointly with the lactometer. 



^ i^^j s/^imMiik ^^-mm 



i dp- Gr. ios^ =g ^^ 

 ^ tf higher ^Si i@ 



'Satire d 



Milk 

 ^p.Qr.less 

 then Vermel 



1.03 i 



Showing position of lactometer in normal, sliimmed and watered milk. 



JOINT USE OF LACTOMETER AND BABCOCK TEST. 



When used jointly, the quality of the milk, and the extent to 

 which any adulteration may have been practiced, can be accurately 

 determined. The following general rule will aid in determining 

 the quality of milk: A low fat and a high specific gravity indi- 

 cate skimming or removal of fats. A low fat and a low specific 

 gravity indicate the addition of water. A low fat and a normal 

 specific gravity indicate that milk has been both skimmed and 

 watered. While, if there is a normal fat and a normal gravity, it 

 safe to conclude that the milk has been neither skimmed nor 

 watered. 



IF THE ANALYSIS OF SUSPECTED SAMPLE SHOW 



Specific Gravity of milk low 



watered 



Fat 



low 



Specific Gravity of milk high 



Fat 



low 



skimmed 



Specific Gravity of milk normal 



Fat 



low 



skimmed 



and 

 watered. 



Any one, after a little experimenting on his own account, can 

 soon learn to detect the common adulterations of milk. 



