350 
growth, are qualities which strongly recommend it to 
further trial. 
XI. Poa trivial! 's. Curt. Lond. Engl. Bot. 1072. Host. 
G. A. 2. t. 62. 
Roughish meadow grass. Nat. of Britain. 
At the time of flowering, the produce from a light 
brown loam, with manure, is 
oz. or lbs. per acre. 
Grass, 11 oz. The produce per acre - 119790 0 = 
80 dr. of grass weigh when dry - 24 dr.~) _ - qq> - 0 _ 
The produce of the space, ditto 54-j| J — 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2 dr. 1 3743 7 — 
The produce of the space, ditto 5. 2 J — 
At the time the seed is ripe, the produce is 
Grass, 11.8 oz. The produce per acre - 125235 0 = 
80 dr. of grass weigh when dry - 36 dr. 7 10 — 
The produce of the space, ditto - 82.3^) ~ 
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 7.3| ) *■ — 
The weight of nutritive matter which is lost by taking the crop 
at the time of flowering, exceeding one-fourth of its value - 
The proportional value in which the grass of 
crop exceeds that at the time of flowering is as 8 
The produce of latter-math is 
Grass, 7 oz. The produce per acre - 76230 0 = 
64 dr. of grass afford of nutritive matter 3 dr. - 3573 4 = 
7486 14 0 
2246 1 0 
5240 13 0 
233 15 7 
7827 3 0 
3522 3 12 
4304 15 4 
336 5 3 
102 5 12 
the seed- 
to 11. 
4764 6 0 
223 5 4 
The proportional value by which the grass of the latter- 
math exceeds that of the flowering crop is as 8 to 1 2, and 
at of the seed crop as 1 1 to 1 2. 
Here, then, is a satisfactory proof of the superior value of 
the crop at the time the seed is ripe, and of the consequent 
oss sustained by taking it when in flower ; the produce of 
each crop being nearly equal. The deficiency of hay in 
the flowering crop, in proportion to that of the seed-crop, 
is very striking. Its superior produce, the highly nutritive 
powers which the grass seems to possess, and the season in 
which it arrives at perfection, are merits which distinguish 
it as one of the most valuable of those grasses, which affect 
moist rich soils, and sheltered situations ; but on dry ex- 
posed situations it is altogether inconsiderable: it yearly 
diminishes, and ultimately dies off, not unfrequently in the 
space of four or five years. 
