92 
ANALYSES OF THE OAT. 
2. Analysis of the grain. 
Per centum. 
Silica - -- -- -- - 30-706 
Phosphates ------- 32*826 
Lime -------- 0*221 
Magnesia O'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. Analysis 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. 
