28 



ANALYSIS AND ADULTERATIONS OF BUTTER. 



Sinking Paints of Fats other than Butter. 

 1 Tallow from candle 



from 

 to 



from 

 to 



from 

 to 



53-3° 



31-3° 



48-3° 



53-0°* 



50-1 



51-6°t 



42-r 



4.5-3° 



42-7° 



43-8° 



44-5° 



47.70 



42 -e" 



34-9° 

 39-2° 

 62-8° 



Sinking Point of Mixtures. 



No. p.o. p.c. 



1 66-7 butter and 33-3 tallow ... 



2 73-0 „ „ 27-0 mutton fat 



3 10-0 „ „ 90'0 „ „ 



4 85-0 „ „ 15-0 ox fat „ 



5 69-8 „ „ 30-2 „ 



Problem : To calculate the sinking point of a mixture of 

 known composition. 



Midtiply the percentage of tbe first constituent by its 

 sinking point. 



Multiply tbe percentage of tbe second constituent by its 

 sinking point. 



' Average, 50-6°. 



t Average, 50-9°. 



