248 QUANTITATIVE ANALYSIS. 



of double the volume of alcohol precipitated glycogen, con- 

 taining far less ash than that which was obtained from the 

 alkaline solution. This glycogen contained only traces of 

 nitrogen, and its solution gave no precipitate with Briicke's 

 reagent and hydrochloric acid. 



A simple method depending on the auto-digestion of the 

 liver is described by Austin, Virchow's Arch. 150, 185 (1897). 

 It yields approximately correct results. 



