5i8 Quantitative Determmation of Fat in Milk [July 



dcscrihed ahove, and the differences in favor of the Soxhlet method 

 have been f ound to ränge between + 0.007 P^'' cent. and + 0.059 

 per Cent., or about the same as when the pipette was used, but with 

 miich more rapid and less difficult manipulation. 



I wish to express my thanks to Prof. John Marshall and Dr. 

 Wm. H. Welker for suggesting this investigation, and for the 

 kindly interest shown by them throughout its progress. 



