213 



Analysis of the Ash of the Grain. 



Percentage. Removed from an Acre. 



IDS. ozs. 



Silica .............................. 6-63 .................. 2 8 



Phosphoric Acid .................. 43.98 .................. 19 8 



Sulphuric Acid .................. 0'21 .................. 1 



Lime ................................. 1'80 .................. 12$ 



Magnesia ........................... 11'69 .................. 6 3ft 



Peroxide of Iron .................. 0*29 ...... ........ "... 2 



Potash .............................. 34-51 .................. 15 6ft 



Soda ................................. T87 .................. 13 



Total...... 99-98 44 



Analysis of Straw, with its proportion of Chaff. 



Percentage. Removed per Acre. 



Ibs. ozs. 



Silica .............................. 69-36 .... ........... Ill 1ft 



Phosphoric Acid .................. 6'24 ..... ........... 8 6ft 



Sulphuric Acid ................... 4-45 .................. 7 2ft 



Lime ................................. 6'96 .................. 11 2 5 2 8 



Magnesia ............ . ............. 1'45 ............. .... 2 5 



Peroxide of Iron .................. 0-29 .................. 1 2 



Potash .............................. 11-79 .................. 18 14 



Soda ........................... ..... none . ................. none. 



Chloride of Sodium ............. , ............... ... 



Total 99-54 160 l T ' g 



If we subtract the 1 11 Ibs. of silica from the 160 Ibs. 

 of minerals in the straw and chaff, the difference 

 between the residue and those in wheat is not great. 

 As the stems and leaves of wheat-plants grow before 

 their seeds, if all the phosphoric acid, potash, and 

 lime available in the soil is consumed before the 

 organization of the seeds begins, from what source 

 is nature to draw her supply of these ingredients 

 to produce a good crop ? Could the farmer reverse 

 the order of nature by growing seeds first and 



