BULLETIN No. 166 DECEMBER, 1915 



MASSACHUSETTS 



By E. B. Holland, J. C. Reed and J. P. Buckley. 



This bulletin presents the results of a careful study of methods 

 for the analysis of oils and fats. In most cases the work has 

 resulted in improvements in manipulation and in the apparatus 

 employed. The Hehner and Mitchell method has been adapted 

 for use with the insoluble acids of butter fat, the original method 

 not proving applicable. The method for the determination of 

 acetyl number may be considered new and that for unsaponifiable 

 matter substantially so. Information is given as to the inter- 

 pretation of the results obtained. The bulletin is technical in 

 character, being intended primarily for those engaged in the 

 examination of these substances. 



Requests for bulletins should be addressed to the 



Agricultural Experiment Station, 



Amherst, Mass. 



