ANALYSES OF THE POTATO. 



%. 



XVI. ANALYSIS OF THE ASH OF THE YOUNG POTATO VINES (Eaelv Shaws). 



I separated the leaves from the stem, in conformity with the method I have usually 

 pursued in the analysis of similar substances. 



97-850 



' 2. Composition of the phosphates. 



Phosphates - - -  - - 4-09 



Phosphate of peroxide of iron - • - - 0-90 



Lime 0-73 



Magnesia 2-08 



Phosphoric acid - - - - - - 128 



4-09 



100-992 



-'^.ntvjtir.: 



XVn. ANALYSIS OF THE ASH OF THE POTATO STEM (Early Shaw). Effervescent. 



Per centum. 



-Silica 5-000 



Phosphates 13 000 



Carbonate of lime 11-700 



Magnesia ....... 0-560 



Potash 20-740 



Soda 2-000 



Chloride of potassium 34-960 



Sulphuric acid 4 000 



Carbonic acid 9 032 



