210 



MILK HYGIENE 



icals are required: crude sulphuric acid of a specific 

 gravity at 15° C. (60° F.) of 1.825, and amyl-alcohol. 

 The examination is made in the following way: 10 c.c. 



Fig. 20. 



Soxhlet's apparatus for fat-determination. 



of sulphuric acid are measured out by the acid pipette, 

 this is permitted to flow slowly into the bottle G; 1 c.c. 

 of amyl-alcohol is measured and poured carefully into 



