ASH. 



421 



standard for cream, but without success. Thus it has been pro- 

 posed that any product containing less than 25 per cent, of fat 

 should not be recognised as cream ; the absurdity of this is 

 shown by the fact that, while much of the cream sold in London 

 contains between 40 and 50 per cent, of fat, being prepared by 

 a separator, cream made by the Swartz process but rarely comes 

 up to the standard proposed. 



Ash. It has been alleged that the ash of cream is practically 

 free from chlorides ; this, however, is not in the author's experi- 

 ence correct ; the ash of cream differs in no respect from that of 

 milk. 



The following is the composition of the ash of cream according 

 to Fleischmann : 



Potash, . 



Soda, . 



Lime, 



Magnesia, 



Iron oxide, 



Phosphoric anhydride, 



Chlorine, 



Less oxygen equivalent to chlorine, 



28-381 per cent. 



8-679 

 23-411 



3-340 



2-915 

 21-735 

 14-895 



103-356 

 3-356 



100-000 



The following table shows the aldehyde figure of cream ; the 

 aldehyde figure of cream devoid of fat is practically the same 

 as that of milk devoid of fat, averaging 20-8. 



TABLE CXL VII. ALDEHYDE FIGURE OF 

 CREAM. 



A sample of froth taken from the surface of cream running 

 from a Burmeister and Wain separator had the following com- 

 position : 



