866 
XXXVI. Air a jlemosa . Engl. Bot. 1519. Host. G. A. c 2< 
t. 43. 
Waved mountain hair-grass. Nat. of Britain. 
At the time of flowering, the produce from a heath soil is 
Grass, 1 2 oz. The produce per acre 
80 dr. of grass weigh when dry - 31 dr. J 
The produce of the space, ditto - 74§ $ 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 1.2 dr. " 
The produce of the space, ditto - 4.2 
oz. or lbs. per acre. 
- 130680 0 = 8167 8 0 
50638 0 = 
3062 13 = 191 6 13 
XXXVII. Hordeum bulbosum. Hort. Kew. 1. P. 179. 
Bulbous barley-grass. Nat. of Italy and the 
Levant. Introduced 1770, by Mons. Richard. 
At the time of flowering, the produce from a clayey 
loam, with manure, is 
Grass, 35 oz. The produce per acre - 381150 
80 dr. of grass weigh when dry - 93 dr. } ^ooa 
The produce of the space, ditto - 231 $ 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 3. 2 dr. 1 . 
The produce of the space, ditto - 30. 2f J 
O = 23821 0 0 
0 = 9826 8 6 
13994 7 10 
2 = 1302 12 2 
XXXVIII. Festuca calamaria. Engl. Bot. 1005. 
Reed-like fescue-grass. Nat. of Britain. 
At the time of flowering, the produce from a clayey 
loam is 
Grass, 80 oz. The produce per acre 
80 dr. of grass weigh when dry - 28 dr. 
The produce of the space, ditto - 448 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 4.2 dr. ' 
The produce of the space, ditto - 90 
871200 0 = 54450 0 
304920 0 = 19057 8 
35392 8 
61256 4 = 3828 8 
0 
0 
0 
4 
At the time the seed is ripe, the produce is 
Grass, 75 oz. The produce per acre - 8] 6750 0 = 51046 14 
80 dr. of grass weigh when dry - 1 9 dr. \ 2 _ ]2] oo ]n 
The produce of the space, ditto - 283 / iyJy7b J ~ 10 
The weight lost by the produce of one acre in drying - 38923 4 
64 dr. of grass afford of nutritive matter 3dr.\ ovao 
The produce of the space, ditto - 56. 1 J 
The weight of nutritive matter which is lost by leaving the 
crop till the seed be ripe, being nearly one-third part of its 
value - -------- 1435 11 
0 
0 
0 
2 
2 
The proportional value which the grass, at the time the 
seed is ripe, bears to that at the time of flowering, is as 
12 to 18. 
