146 ANALYSES OF WHEAT. 



IV. ANALYSIS OF SUMMER WHEAT. 



Received from Mr. Petkrb of Genesee county. 



Removed (Vom Iha (era. 



Silica 2-633 0-687 lbs. 



Sand 1-607 0-419 



Phosphates of lime, magnesia and iron - - 48 000 12-528 



Phosphates of the alkalies ... - 19-440 5-073 



Lime and magnesia ..... 0-020 0-005 



Potash 14-720 3-841 



Soda 3-356 0-875 



Chlorine ....... none. 



Sulphuric acid - 0-544 0*141 



Organic matter 8-480 2-213 



98-864 25-782 



Percentage of water of Black-sea Wheat grottm on different soils. 



On limestone ....-.- 10-52 



On slate 10-72 



On alluvial gravel .-••-. 10-27 



On sandy soil - - - - - - - 11-10 



The variety known as Harmon Wheat, grown upon clay loam based upon the rocks of the 

 Salt group, gave water 11-82, after long drying in the water bath. The last had assumed 

 a brown color, and appeared partially charred, although it had never been exposed to a 

 temperature above 212° Fahr. 



From the preceding observations, and others of the same kind, I am led to believe that 

 this grain has always in combination about the same quantity of water, and that soil and 

 varieties do not cause it to vary much either way from 12 per centum of water. This 

 amount of water, however, although it is comparatively small, has probably a decided 

 influence upon its preservation in transportation to foreign countries. The hygrometric 

 power of grains and flour has not been determined. The percentage of water may not of 

 itself form an obstacle to its keeping ; and if it is not in a situation to imbibe more, it may 

 perhaps remain for years in a sound state. 



