Rice [pp. 502-511]

504 RICE.
Composilion of 100 parts of this residuuvm, as follows:
Silica............................................................. 97.551
Phosphate of lime, with traces of alumina and oxides of iron and man ganese.......................................................... 1.023
Carbonate of lime................................................. 0.294
Phosphate of potassa........
Sulphate of potassa, in traces
Chloride of potassium, " and loss............................. 1.132
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.
Composition of 100 parts, as follows:
Silica.............................................................. 84.75
Potassa, with probable traces of soda, combined with the above silica.... 8.69
Phosphate of lime, with traces of oxide of iron and manganese......... 2.00
Carbonate of lime...................................................00
Alumina, in traces....
Phosphate of potassa..
Carbonate of potassa.. and loss...2.56
Sulphate of potassa..
Chloride of potassium
100.00
7.-RICE SOIL FROM WAVERLY ISLAND.
Silica, with fine sand, one-third of which is feldspathic and slightly mag nesian or talco.se; and contains alumina, with from 2 to 4 per cent. of
potassa, mingled with soda and magnesia............................ 47.75
Alumina, partly combined with humic acid............................ 12.35
Peroxide of iron (combined with humus), with decided traces of phosphate
of lime (bone-earth)............................................... 4.15
Carbonate of lime, with traces of magnesia........................... 0.40
Water of absorption.... 8.50 )
Humus (organic matter) 23.50...................................... 00
Chloride of calcium.
Sulphate of lime....
Sulphate of magnesia and loss.......................................1.35
Sulphate of potassa.
Chloride of sodium..
100.00
8.-RICE SOIL FROM MATANZAS ON THE MAIN.
Silica, with fine sand as above....................................... 60.50
Alumina, partly combined with humic acid............................ 8.15
Peroxide of iron, combined with humus, with decided traces of phosphate
of lime.......................................................... 3.00
Carbonate of lime, with traces of magnesia........................... 0.85
Water of absorption.. 9.00 27.50
Humus............. 18.50 3 -.-.-.-.-.-.-.-.-.-...
Chlorides of calcium and of sodium and loss..1.00
Sulphates nearly as above........ an lOSS 100
101.00
Since rice culture is likely to be extensively adopted before very
long in the low, river, and bottom lands of Mississippi and Louisiana, we deem the preservation of this matter important. The reader
wvill find great advantage from consulting Col. Allston's paper above
referred to, and as containing additional valuable particulars, we
introduce some remarks made by Mr. Ruffin, in his late agricultural
survey of South Carolina:
GENERAL DESCRIPTION OF THE TIDE SWAMPS IN THEIR NATURAL
STATE.
The great body of alluvial swamp lands on the Waccamaw and