ANALYSES OF THE GRASSES. 
81 
XT. The Carices form another family of coarse grasses, in which the species are very numerous. 
I subjoin a single analysis of a Carex, a coarsish swamp grass, cut before the spikes had 
appeared. 
Silex ----- 
m 
Per centum. 
51-250 
Phosphates of lime and iron - 
- 
2-600 
Chlorine - 
- 
0-560 
Carbonate of lime 
- 
3-500 
Magnesia .... 
- 
0-400 
Potash ----- 
- 
26-060 
Soda ----- 
- 
4-065 
Sulphuric acid 
- 
3-755 
Carbonic acid 
- 
6-170 
98-190 
XII. PANICUM CRUS-GALLI (Cocksfoot grass). 
Grown in the yard of the Old State House 
: height about 3 feet, in flower. 100 grs, 
the plant, nearly dry, gave 
Per centum. 
Water - - - - 
- 
4-737 
Dry matter - 
. 
95-263 
Ash - 
. 
11-479 
Ash calculated dry 
- 
12-049 
100 grs. of ash gave the following results : 
Per centum. 
Elements removed in one ton of dry lie 
Silicic acid .... 
17-325 
45-777 lbs. 
Coal ..... 
1-850 
4-995 
Phosphates : 
Phosphate of iron - 
0-325 
Lime .... 
0-625 
Magnesia ... 
2-831 
Silicic acid ... 
0-625 
Phosphoric acid 
6-894 
11-300 
30-510 
Lime ..... 
3-060 
8-262 
Magnesia ----- 
2-618 
7-068 
Potash ..... 
36-656 
93-971 
Soda ------ 
1-885 
5-089 
Chloride of sodium 
5-723 
15-452 
Sulphuric acid .... 
8-524 
S. 23-015 
Carbonic acid and organic matter not obtained. 
[Agricultural Report — Vol. ii.] 
11 
