112 ACTION OF SALTS. 



100 PARTS OF THE INSOLUBLE CONTAIN.* 



Carbonic acid, 21*50. 



Phosphoric acid, 1-80. 



Silex, " ]3* 



Magnesia, ; 8-70. 



Oxide of iron, 22-30. 



Oxide of manganese, 5-50. 



Lime, 27*20. 



100. 



Wheat straw — 100 parts yield # 044 of ashes ; 

 100 parts of which afford, soluble, 19 ; insoluble, 81. 



100 PARTS OF THE SOLUBLE CONTAIN : 



Sulphuric acid, 0*2. 



Muriatic acid, 13. 



Silex, 35*6. 



Potash and soda, 50. 



100 PARTS OF THE INSOLUBLE CONTAIN: 



Phosphoric acid, > 1*20. 



Silex, 75* 



Oxide of iron, 2-50. 



Lime, 5-80, 



Charcoal, 1550. 



