106 Sir Robert Kane on the Chemical Constitution of the 



Potash 22-897 



Soda none 



Lime . 16-4.83 



Magnesia 3*332 



Peroxide of iron .... 1*523 



Alumina 0-438 



Oxide of manganese ... a trace 



Sulphuric acid 6* 174 



Phosphoric acid .... 11*802 



Carbonic acid 25*235 



Chloride of sodium . . . 8*701 

 Silica 3*409 



99*994 



C. This flax was very fine, and was said to be as good as 

 any grown in that season. 



The stem, dried at 212°, and analysed, was found to con- 

 tain, per cent., 0*876 of nitrogen. 



On incineration, the plant, dried at 212°, yielded in average 

 3-670 per cent, of pure ash. 



After deducting, as usual, the sand and charcoal, the ash 

 was found to contain per cent., — 



Potash . 22*303 



Soda 14*116 



Lime 18*525 



Magnesia 3*933 



Peroxide of iron . . . , 1*100 



Alumina 0*725 



Oxide of manganese ... a trace 



Sulphuric acid 6*833 



Phosphoric acid .... 8*811 



Carbonic acid 16*383 



Chloride of sodium . . . 4*585 

 Silica 2*678 



99-992 



D. This flax, of a rather coarse quality, had been sown 

 May 2nd, and pulled July 29. 



The plant, dried at 212° and analysed, yielded 0*901 per 

 cent, of nitrogen. 



On incineration after desiccation, it gave 4*543 per cent, of 

 ashes. 



The composition of the ash per cent, was — 



