390 



STATE BOARD OF AGRICULTURE. 



The samples I-XI could not be tested when perfectly fresh and therefore 

 their acidity is sometimes higher than that of the cold storage samples. 



VOLATILE ACIDS AND ESTERS. 



The results of the determination of volatile acids and esters in series a 

 are given in Table VII, which shows no apparent relation between the total 

 amount of free acid and the amount of volatile free acid. This may be due 

 to the great liability to error in the determination of the free volatile acids 

 together with the very small amount of total free acid. Esters were found 

 only in sample III. The butters of the other series, showing no marked 

 'ncrease in acidity, were not investigated for volatile acids and esters. 



TABLE VII. 

 Volatile Acids and Estei's cc N/1 NaOH per 100 grams of Butter. 



*No3. I-XI not strictly fresh when first tested. 



