164 AMOUNT OF ALCOHOL IN WINE. 



At the same temperature, the specific gravity of the 

 solution of sugar = 1.0602, and that of the spirit, 

 0-9797. This last would give 16| per cent, as the 

 alcoholic contents, at 95-5 P. 15-5 C., whilst 1-0407 

 0'0602 = 0'9805, gives an alcoholic per centage of 16. 

 There is, according to this, a difference of f per cent. 

 I consider, for such determinations, that this is suffi- 

 ciently accurate. 



It must be remembered that errors also will 

 occur in distilling spirit, since all wines contain 

 acetic acid ; and therefore, if we would have dis- 

 tilled spirit alone, the wine must not be distilled by 

 itself, but the process must be carried on after the 

 addition of chalk. 



Inaccuracies will always occur in such determina- 

 tions, but for all technical purposes I consider the 

 method of evaporation sufficiently accurate ; though I 

 must confess that neither this means nor the distilla- 

 tion of spirit can give the exact amount. 



Blaanderen has obtained the following results from 

 the wines mentioned. The determinations were all 

 made between 48'2 F. 9 C. and 50 E. 10 G. 



