ANALYSES OF MAIZE. 



193 



it is very liable to end in fusion. The best mode of proceeding, when the ash begins to 

 appear, is to remove it from the fire which is in common use, and which usually requires 

 to be kept in a livel}' state while the work is going on ; and then at the approach of 

 evening, when the heat of the stove is considerably diminished, to replace it, and suffer 

 it to remain during the niglit. In the morning it will be found to have made considerable 

 progress. Proceeding in this way for a week or more, a good ash for analysis will be 

 obtained. Another requisite is a perfectly dry state of the corn : at least, very dry corn 

 has burnt better than that which was moist at the beginning. The same mode of pro- 

 cedure will be successful in wheat and its flour, or indeed in any of tiie cereals. O&U and 

 barley, however, are not very diflicuU to burn. 



1. ^Tudysis of the ash of the leaf of the small 8-rowed corn : cut August 4. 

 Brisk effervescence of the ash on (he addition of acids. 



Silica • 



Earthy phosphates 



Carbonate of lime 



Magnesia 



Potash - 



Soda 



Chlorine 



Sulphuric acid 



Carbonic acid 



Organic matter 



Per centum. 



27-375 



23-780 

 0-500 

 0-365 



22-825 

 5-845 

 1-750 

 2-580 



10-615 

 4-000 



99-665 



2. Analysis of the ash of the corn-leaf, cut August 11 ; the results of which may be stated as 



follows 



Quantity 



and 



Silica ... 

 Phosphates of lime, iron 

 Carbonate of lime 

 Magnesia - . . 

 Potash ... 

 Soda - 



Chlorine ... 

 Sulphuric acid - 

 Carbonic acid 

 Organic matter - 

 Soluble silica 



[Agricultukal Report — Vol. ii.] 



magnesia 



20-072 



97-900 



25 



