CH. XIIl] ON SUGARS. 289 



(b) leaves of do. Avhich have been cut off from the 

 plant during active assimilation, kept in the dark for forty- 

 eight hours, and then killed with chloroform. 



Extract with (1) benzene, (2) alcohol, (3) cold water. 



After removing tannins, etc. from (2) mix the solution 

 with extract (3) and estimate glucoses, cane-sugar, and 

 maltose by the process described on p. 285. 



D. A. 19 



