387 
LXXXV1II. Agrostis lobata. Curtis, lobata et arenaria. 
Lobed bent-grass. 
At the time of flowering, the produce from a sandy 
soil is 
oz. 
Grass, 10 oz. The produce per acre - 108900 
80 dr. of grass weigh when dry - 40 dr. \ _ - 
The produce of the space, ditto •• 80 j 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 3 dr. 1 e ^ 
The produce of the space, ditto - 7.2 £ u 
or lbs. per acre. 
0 = 6806 4 0 
0 = 3403 2 0 
3403 2 0 
11 = 319 0 11 
LXXXIX. Agrostis repens. Wither. Bot. A. nigra. 
Creeping rooted- bent, black bent. Nat. of 
Britain. 
At the time of flowering, the produce from a clayey 
loam is 
Grass, 9 oz. The produce per acre - 98010 0 = 
80 dr. of grass weigh when dry - 35 dr. } 49Q70 « _ 
The produce of the space, ditto - 63 ^ — 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 3 dr. ? . . <2 _ 
The produce of the space, ditto - 6.3 ^ — 
6125 10 0 
2679 15 6 
3445 10 10 
287 2 8 
XC. Agrostis mexicana. Hort. Kew. 1. P. 150. 
Mexican bent-grass. Nat. of S. America. Intro- 
duced, 1780, by M. G. Alexander. 
At the time of flowering, the produce from a black sandy 
soil is 
Grass, 28 oz. The produce per acre - 804920 0 = 19057 
80. dr. of grass weigh when dry - 28 dr. 7 106722 6670 
The produce of the space, ditto - 156.3£ S 
The weight lost by the produce of one acre in drying - 12387 
64 dr. of grass afford of nutritive matter 2 dr. ^ 252H 12 = 795 
The produce of the space, ditto 
8 0 
2 0 
6 0 
8 12 
XCI. Stipa pennata. Engl. Bot. 1356. 
Long-awned feather-grass. Nat. of Britain. 
At the time of flowering, the produce from a heath 
soil is 
Grass, 14 oz. The produce per acre 
80 dr. of grass weigh when dry - 29 dr. 
The produce of the space, ditto - 811 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2.3 dr. 1 
9.2§ \ 
The produce of the space, ditto 
52460 0 = 9528 12 0 
55266 12 = 3454 2 12 
6074 9 4 
6551 0 = 409 7 O 
c c 2 
