385 
LXXXI. Agrostis canina. Var. muticae. 
Awnless brown bent. Nat. of Britain. 
At the time the seed is ripe, the produce from a sandy 
soil is 
oz. or lbs. per acre. 
Grass, 21 oz. The produce per acre - 228690 0 = 14293 2 0 
80 dr. of grass weigh when dry - 24 dr. 4 r _ 
The produce of the space, ditto 100.3s J 
The weight lost by the produce of one acre in drying - 10005 3 0 
64 dr. of grass afford of nutritive matter 1.3 dr. 0 _ q _ <aor* u a 
The produce of the space, ditto - 9.0^ J ~ 
The weight of nutritive matter which the produce of one acre 
of the awnless variety exceeds that of the last mentioned 
species - 151 8 11 
LXXXII. Agrostis stricta. Curt. A. rubra. 
Upright bent- grass. Nat. of Britain. 
At the time the seed is ripe, the produce from a bog 
soil is 
Grass, 1 1 oz. The produce per acre 
80 dr. of grass weigh when dry 
The produce of the space, ditto 
119790 
0 = 7486 
14 
0 
6s/ r '} 43423 
14 = 2713 
15 
0 
acre in drying 
4772 
15 
0 
i 1 .2 dr. 7 ofiCi'f 
4.0& \ 2807 
9 = 175 
7 
5 
The produce of the space, ditto 
LXXXIII. Agrostis nivea. 
Snowy bent-grass. Nat. of Britain. 
At the time the seed is ripe, the produce from a sandy 
soil is 
Grass, 7 oz. The produce per acre - 76230 
80 dr. of grass weigh when dry - 22 dr. 7 
The produce of the space, ditto - 30.3^ ) 
The weight lost by the produce of one acre when drying 
64 dr. of grass afford of nutritive matter 2 dr. ) 2382 
J 
0 = 4764 6 
4 = 1310 3 
3454 3 
3 = 148 14 
Huds. Var. canina. 
The produce of the space, ditto 
LXXXIV. Agrostis fascicularis . 
Curt. 
Tufted-leaved bent. Nat. of Britain. 
At the time of flowering, the produce from a light sandy 
soil is 
Grass, 4 oz. The produce per acre - - 43560 0 = 2722 8 ' 0 
80 dr. of grass weigh when dry - 20 dr. 7 
The produce of the space, ditto 16 ) 
The weight lost by the produce of one acre in drying - 2041 14 0 
64 dr. of grass afford of nutritive matter 2 dr. 7 . - _ 
The produce of the space, ditto 2 j ”* 
C C 
