92 



ANALYSES OF THE OAT. 



2. Analysis of the grain. 



Per cenniu;. 



Silica 30-706 



Phosphates 32-826 



Lime 0-221 



Magnesia 0-143 



Potash - - 18-332 



Soda 3-973 



Sulphuric acid 1-674 



Chlorine 0-463 



Organic matter ..--.. 5-447 



93-785 



The loss in this instance is too great to pass unnoticed, but I am unable to account for it, 

 unless it is to be attributed to water in the ash, which was not dried previous to analysis. 



3. Anahjsis of the straw. 



Per centum. 



Silica 24-450 



Phosphates of lime, magnesia and iron - - 31 "650 



Carbonate of lime 6-050 



Magnesia 0-200 



Potash 17-990 



Soda 3-140 



Chlorine 0'490 



Sulphuric acid 12*571 



Organic acids ...... 3-672 



100-213 B. 



4. Analysis of the chaff. 



Per centum. 



Silica 66-50 



Phosphates 20-20 



Carbonate of lime 0-20 



Magnesia 0-10 



Potash 5-62 



Soda 3-73 



Sulphuric acid 3-72 



Chlorine 0-40 



100-47 



In the chaff of all grains, a larger amount of silica is found than in the other parts. 

 It seems to be required for the purpose of protecting the grain from casual injury, or it 

 may be from insects. 



