468 PHYSIOLOGY AT THE FAKM. 



ASH. 



Total sulphur, . 0.53 

 Sand and silica, 



Potash, . , 12 - 4 



Soda, 8 - 4 



Lime, . ... 2.5 



Magnesia, . ... 

 Oxide of iron, 



Phosphoric acid, . ... 39.6 



Sulphuric acid, . ... 



100.0 



COMPOSITION OF BARLEY STRAW, DRIED AT 212 F. 



Organic matter, . . . .93.50 



Ash, . 6.56 



ULTIMATE ELEMENT. 



Nitrogen, ... .0.26 



Ammonia, . 0.31 



PROXIMATE PRINCIPLES. 



Total sulphur, . . . 0.29 



Sand and silica, . . .73.1 



Potash, ... 3.4 



Soda, ... 1.0 



Lime, . . 10.5 



Magnesia, . . ..-'.. 1.5 



Alumina, ...... 2.9 



Oxide of iron, . . . . .0.2 



Oxide of manganese, ... 0.4 



Chloride of potassium, ) 



Chloride of sodium, ) 



Phosphoric acid, ..... 3.4 



Sulphuric acid, . . . . .2.3 



100.0 



AWN. 



Organic matter, ..... 85.9 

 Ash, 14.1 



