ANALYSIS OF PLANTS. TT 



now given, that the importance of these earthy 

 matters in the vegetable economy may be fully 

 appreciated. 



100 parts of the ashes of wheat straw yield 



Saline matter, principally carbonate and sul- 

 phate of potash .... 22$ parts 

 Phosphate of lime .... 6| parts 

 Silicate of potash or flint . . . 611 parts 

 Carbonate of lime, metallic oxide and loss . 94 parts 



100 



4i 100 parts of the bran of wheat yield 44 parts 

 of^he phosphates of lime and magnesia, 100 

 parts of barley yield 32 parts of these phos- 

 phates. — (.Johnson.) 



100 parts of the ashes of the grain of wheat 

 contain 76 parts of these phosphates. — {De 

 Saussure,) 



The ashes of beech-wood yield 20 per cent, 

 of their weight of the phosphates of lime and 

 magnesia. — {Berthier. ) 



Nearly one-half the weight of the ashes of 

 oak leaves consists of soda and potash. — {De 

 Saussure. ) 



100 parts of the fir grown in Norway yielded 

 on analysis, 



The above analysis of vegetable substances, 

 must demonstrate that these earthy salt« are 

 8 



