218 ASH or RYE, BEANS, PEAS, AND VETCHES. 

 IV. OF THE ASH OF RYE. 



The weight of ash contained in 1000 lbs. of the grain of rye Is lOJ lbs., 

 and of the straw 28 lbs. This ash consists of 



Grain. Straw. 



Potash I r; Qo IK. S 0-32 Ibs. 



Soda I ^'^^^^'' iO'U 



Lime 1-22 1-78 



Magnesia 1-78 • 0-12 



Alumina 0*24 



Oxide of Iron. . . . 0-42^ ^'^^ 



Oxide of Manganese . 0-34 



Silica 1-64 22-97 



Sulphuric Acid . . . 0-23 1-70 



Phosphoric Acid . . 0-46 0-51 



Chlorine 0-09 0-17 



10-40 lbs. 27-93 lbs. 

 Rye is remarkable for the quantity of |[|:aw it yields, which is often 

 from 3 to 4 times the weight of the grain. The return in grain reaches 

 about the same average as that of wheat. From an acre of land yield- 

 ing a crop of 25 bushels, each 54 lbs., there would be reaped 



Of grain 1350 lbs. ; of straw 4000 lbs. ; 

 the whole weight of inorganic matters contained in which is equal to ^- 

 more than is represented in the second column, added to 4 times the weights 

 contained in the third column. 



V. OF THE ASH OF BEANS, PEAS, AND VETCHES. 



The ash of the seed and straw of the jfield bean, the field pea, and the 

 common vetch {vicia sativa,} dried in the air, contains in 1000 lbs. the 

 several inorganic compounds in the following proportions : 



PIKLD BEAN. FIELD PEA. COMMON VETCH. 



21-36 31-21 24-64 49-71 22-90 51-01 

 On comparing the numbers in these columns, we cannot fail to remark, — 

 1°. How much potasn there is in the straw of the bean and the vetch. 

 2°. That while there is only a trace of soda in any of the three straws, 

 there is a considerable quantity in all the seeds. 



