TRANSPARENCY TEST 



199 



cient is of great moment. Different inspectors will in- 

 terpret the same result quite differently. When one is 

 experienced in examining with the lactoscope the milk 

 of a given breed of cows, he may become so proficient 

 that he can make a fair estimate of the fat content, but 



FIG. 19. 



FIG. 18. 



Feser's Lactoscope. 



Queveime's Lactodensimeter. 



when another kind of milk is examined the result may 

 not be so accurate. If milk tests normally, both in re- 

 spect to specific gravity and lactoscopically, it is not apt 

 to be much skimmed or watered. 

 The following is from Leach : 52 



52 A. E. Leach, Food Inspection and Analysis. New York, 1905. 



