388 
XCXII. Triticum repens. Engl. Bot. 909. 
Creeping-rooted wheat-grass. Nat. of Britain. 
At the time of flowering, the produce from a light 
clayey loam is 
oz. or lbs. per acre. 
Grass, 1 8 oz. The produce per acre 
80 dr. of grass weigh when dry - 32 dr. \ 
The produce of the space, ditto - 115| J ' 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2 dr. 1 
The produce of the space, ditto - 9 j 
64 dr. of the roots afford of nutritive matter 5.3 dr. 
196020 0 = 12251 4 O 
8408 0 = 4900 8 O 
7350 12 0 
6125 10 = 382 13 10 
The proportional value of the roots is therefore to that 
of the grass, as 23 to 8. 
XCIII. Alopecurus agrestis. Engl. Bot. 848. A. myosu- 
roides. 
Slender fox-tail grass. Nat, of Britain. Curt. 
Lond. 
At the time of flowering, the produce from a light sandy 
loam is 
Grass, 12 oz. The produce per acre 
80 dr. of grass weigh when dry - 31 dr. 1 
The produce of the space, ditto - 74. Ig f 
64 dr. of grass afford of nutritive matter 1.3 dr. 1 
The produce of the space, ditto - 5 . 1 j 
130680 0 = 8167 8 
50638 8 = 3164 14 
3573 4 = 223 5 
0 
8 
4 
XCIV. Bromus asper. Engl. Bot. 1172. Curt. Lond. 
Bromus hirsutus. Huds. Bromus ramosus. 
B. sylvaticus, volger. B. altissimus. 
Hairy-stalked brome-grass. Nat. of Britain. 
At the time of flowering, the produce from a light sandy 
soil is 
Grass, 20 oz. The produce per acre - 217800 0 = 13612 8 0 
80 dr. of grass weigh when dry - 24 dr. 
The produce of the space, ditto - 96 
The weight lost by tbe produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2 dr. ? 6806 
The produce of the space, ditto - 10 3 
65340 0 = 4083 12 0 
9528 12 0 
4 = 425 6 4 
XCV. Phalaris canariensis. Engl. Bot. 1310. 
Common canary-grass. Nat. of Britain. 
At the time of flowering the produce from a clayey 
loam is 
Grass, 80 oz. The produce per acre - 871200 
80 dr. of grass weigh when dry - 26 dr. 1 O og 177 
The produce of the space, ditto - 416 3 
The produce in weight lost by drying 
0 = 54450 0 O 
8 = 17697 9 8 
36752 6 6 
