EXTRACTS FOREIGN AND DOMESTIC. 125 



Composition of 100 paris of this residuum^ as follows : 



Silica, with traces of combined potassa, 38 .02 



Phosphate of lime, with traces of phosphate of magnesia, 54 .60 

 Phosphate of potassa, (rich in this salt,) ' 



Sulphate of potassa, 



Sulphate of lime, in traces, 



Chloride of calcium, " 



Chloride of potassium " 



Lime and magnesia, '' 



■' and loss, . 7 . 38 



100.00 

 4. — Of coarse Rice Flour ^ from the hulk. 



It gives, on burning, a bulky, porous ash=11.23 per cent. 

 Corrected stateraent:=ll .831 per cent. 



Composition of 100 parts of this residuum., as follows : 



Silica, with traces of combined potassa, 69 .27 



Phosphate of lime, with traces of phosphate of magnesia, 28.94 

 Phosphate of potassa, (rich in this salt,) ) 



Carbonate of potass, in traces, | 



Sulphate of potassa, 'J ^^^^ _ ^ ^ ^ ^ .^ 



Lime and magnesia, "■ ' ^ 



Chloride of calcium, " 



Chloride of potassium, " 



100.00 

 5. — Of the Husk J cominonly called chaff., or offal. 



Burns wath little or no flame, into a perfectly white, silicious 

 skeleton of the husk. In weight it equals 13.67 per cent. 



Composition of 100 parts of this residuum., as follows : 



Silica 97 .551 



Phosphate of lime, with traces of alumina and oxides of 



iron and manganese, 1 . 023 



Carbonate of lime, 0.294 



Phosphate of potassa, ) 



Sulphate of potassa, in traces, I i i i iqo 



/^i 1 • 1 r i ■ cc r and loss. ............ i. lo^ 



Lhlonde oi potassmm, " f ' 



Carbonate of potassa, " J 



100.000 

 6. — Of the Bice Straw. 



Burns into an ash, which is a semi-fused, glassy frit. It weighs 

 12.422 per cent. 



