347 
V. Alopecurus alpinus. Engl. Bot. 1126. 
Alpine fox-tail grass. Nat. of Scotland. 
At the time of flowering, the produce from a sandy loam 
with a small portion of manure is 
oz. 
Grass, 8 oz. The produce per acre - 87120 
60 dr. of grass weigh when dry - 16 dr. \ 
The produce of the space, ditto - 34 ) 
The weight lost by the produce of one acre in drying, 
64 dr. of grass afford of nutritive matter 1 dr. 1 
The produce of the space, ditto 2 J 
or lbs. per acre. 
0 = 5445 5 0 
0 = 1452 0 0 
3993 5 0 
4 = 85 1 4 
VI. Poa alpina. Engl. Bot. 1003. Flor. Dan. 107. 
Alpine meadow grass. Nat. of Scotland. 
At the time of flowering, the produce from a light 
sandy loam is 
Grass 8 oz. The produce per acre - 87120 O = 5445 O 0 
64 dr. of grass afford of nutritive matter 1.2 dr. 2041 14 = 127 9 14 
VII. Avena pubescens. Engl. Bot. 1640. Host. G. A. 2. 
t. 50. 
Downy oat-grass. Nat. of Britain. 
At the time of flowering, the produce from a rich sandy 
soil is 
Grass, 23 oz. The produce per acre - 250470 
80 dr. of grass weigh when dry - 30 dr. 1 2 
The produce of the space, ditto - 138 dr. J ° 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 1 .2 dr. 1 *870 
The produce of the space, ditto 8 - St! 1 J 
0 = 15654 6 0 
0 = 5870 6 4 
9783 15 12 
0 = 366 14 6 
At the time the seed is ripe, the produce is 
Grass, 10 oz. The produce per acre - 108900 0 = 
80 dr. of grass weigh when dry - 16 dr. ? 2 1780 0 = 
The produce of the space, ditto - 32 $ 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2 dr. 34Q3 0 _ 
The produce of the space, ditto - 5 J " — 
The weight of nutritive matter which is lost by leaving the crop 
till the seed be ripe, being more than half of its value 
The proportional value which the grass, at the time of 
flowering, bears to that at the time the seed is ripe, is 
as 6 to 8. 
The produce of latter-math is 
Grass, 10 oz. The produce per acre - 108900 O = 6806 4 0 
64 dr. of grass afford of nutritive matter 2 dr. 3403 2 = 212 11 Q 
6806 4 0 
1361 4 0 
5445 0 0 
212 11 0 
154 6 3 
