344 [Senate 



Composition of 100 'parU of this residuum^ as follovis : 



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,) "i 



Sulphate of potassa, 



Sulphate of lime, in traces, , , , « «^ 



Chloride of calcium, " [ and loss. 7.38 



Chloride of potassium, " . . . , 



Lime and magnesia, " , j 



100.00 



4. — Of coarse Rice FlouRo 



From the bulk. 



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

 rected statement=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, j 



Sulphate of potassa || •••'••'« '^ and loss, ........ 6 . 7^ 



Lime and magnesia, " [ 3 • • • 



Chloride of calcium, '^ 



Chloride of potassium, " / 



100.00 



5. — Or THE Husk. 



Commonly called chaffs or offaL 



Burns with little or no flame, into a perfectly white, silicious ske- 

 leton 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 "j 



Sulphate of potassa, in traces, ( , , - . „2 



Chloride of potassium, " ^ and loss. .... .. 1.16Z 



Carbonate of potassa, " j 



100.000 



6. — Or THE Rice Straw. 



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

 12 422 per cent. ' 



