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INORGANIC CONSTITUENTS OF PLANTS. 



According to Sprengel, 1000 lbs. of wheat leave 11-77 lbs., and of wheat straw 

 35'18 lbs. of ash, consisting of — 



In 1000 lbs. of the grain of the Oat are contained 25-80 lbs., and of the dry straw 

 57-40 lbs. of inorganic matter, consisting of — 



Potash 



Soda . 



Lime . 



Magnesia 



Alumina 



Oxide of Iron 



Oxide of Manganese 



Silica . 



Sulphuric acid 



Phosphoric acid 



Chlorine 



In 1000 lbs. of the field Bean, field Pea, and Eye-grass hay, after being dried in 

 the air, the following is the amount of ash, and its composition : — 



Dr. R. D. Thomson gives the following analysis of the inorganic 

 matter in the stem and seeds of Lohum perenne : — 



