CHEMISTRY OF THE CROP. 



389 



portion of water contained in the fresh leaves of the plant 

 is about the same as in the turnip from 90 to 92 per 

 cent. The proportion of ash of the whole plant is from 

 1 to 1*5 per cent. In Dr. Anderson's 1 investigations, the 

 outer leaves were separated from the inner leaves or 

 "heart" of the cabbage, and were separately analyzed. 

 As might be expected, their constituents were found to 

 differ considerably ; the proportion of water in the outer 

 and in the heart leaves was severally 91 '08 per cent, and 

 94-48 per cent., and the proportion of ash was 2-23 per 

 cent, and 0'56 per cent. 



The composition of the ash is given as follows : 



The organic analyses have been conducted in the same 

 way by Dr. Anderson the inner portion of the leaves 

 showing a like deficiency in the valuable proximate com- 

 pounds, as is seen in its inorganic constituents. 



1 High. Soc. Trans., 1855, p. 196. 8 Dr. Frornberg. 3 Dr. Anderson. 



