383 
LXXVI. Agrostis palustris. Wither. Bot. 2, P. 129. Var. 2, 
alba. Engl. Bot. 1189. A. alba. 
Marsh bent-grass. 
At the time of flowering, the produce from a bog earth 
is 
Grass, 15 oz. The produce per acre - - 163350 
80 dr. of grass weigh when dry - 36 dr. 
The produce of the space, ditto - 108 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2.3 dr. 7 
The produce of the space, ditto - 10 . II £ 
or lbs. per acre. 
6 = 10209 6 0 
73507 8 = 4594 3 8 
5615 2 8 
7018 15 = 438 10 15 
At the time the seed is ripe, the produce is, 
Grass, 20 oz. The produce per acre - - 217800 0 = 
80 dr. of grass weigh when dry - 32 dr. 7 07190 n _ 
The produce of the space, ditto ■ 128 j — 
The weight lost by the produce of one acre in drying - = 
64 dr. of grass afford of nutritive matter 2.3 dr. ) _ 
The produce of the space, ditto 13.3 / — 
The weight of nutritive matter which is lost by taking the 
crop at the time of flowering, being one-fourth part of 
its value ------- - - 
13612 8 0 
5445 0 0 
8167 8 0 
584 14 9 
146 3 10 
The proportional value of grass in each crop is equal. 
LXXVII. Panicum dactylon. Eng. Bot. 850. Host. 
G. A. 2, t. 18. 
Creeping Panic grass. Nat. of Britain. 
At the time of flowering, the produce from a sandy loam, 
with manure, is 
Grass, 46 oz. The produce per acre - - 500940 
80 dr. of grass weigh when dry - 36 dr. 7 qocaoo 
The produce of the space, ditto - 331. Of 3 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2 dr. } 
The produce of the space, ditto - 23 3 
0 = 31308 12 0 
0 = 14088 15 0 
17219 13 0 
6 = 9783 6 0 
LXXVIII. Agrostis stolonifera, Engl. Bot. 1532. Wither. 
Bot. 2, 181. (Fiorin, Dr. Richardson.) 
Creeping bent. Nat. of Britain. 
At the time of flowering, the produce from a bog soil is 
Grass, 26 oz. The produce per acre - 283140 0 = 17696 4 0 
80 dr. of grass weigh when dry - 35 dr. ? 
The produce of the space, ditto - 182 3 
The weight lost by the produce of one acre - 
64 dr. of grass afford of nutritive matter 3.2 dr. ) 
The produce of the space, ditto - 22.3 J 
123873 12 = 7742 1 12 
- 9732 15 O 
15484 3 = 
967 12 3 
