IS* Prof. H. Rose oti the Inorganic Constituenis 



Grain. 



Extracted by water 36*80 



Extracted by muriatic acid 43*93 



Ash of the remaining carbonaceous mass 19*27 



Straw. 

 31*79 

 13*39 

 55*82 



100-00 100*00 



The inorganic constituents of the grain amount to 1*28 per 

 cent. ; those of the straw to 3*825 per cent. 



Thus the composition of the entire ash of the grain would 

 be— 



Chloride of sodiun 

 Potash . . . 

 Soda .... 

 Lime .... 

 Magnesia 

 Peroxide of iron 

 Phosphoric acid 

 Silica .... 



Oxygen. 



^9*30 



100*00 



The oxygen contained in the bases to that in the phospho- 

 ric acid is nearly in the proportion of 2 : 5. It has already 

 been stated that the phosphates obtained in the various parts 

 of the analysis were pyrophosphates. 



The composition of the entire ash of the straw is — 



Chloride of potassium 

 Chloride of sodium 

 Potash . . . 

 Lime .... 

 Magnesia . . 

 Peroxide of iron 

 Phosphoric acid 

 Sulphuric acid 

 Silica . . . 



Oxygen. 



•00 



-28 



100 00 



As we have already stated, wheat-straw belongs apparently 

 to the meroxidic substances. But if we deduct the large 

 amount of silica, which must be regarded as existing in a per- 

 fect state of oxidation in the straw, from the anoxidic sub- 

 stances, so very small a quantity of it remains, that the wheat- 

 straw may be regarded as an almost teleoxidic substance. 



