356 
simply, are therefore of equal proportional value ; a cir- 
cumstance which will point out this grass to be more 
valuable for permanent pasture than for hay. The above 
details prove, that a loss of nearly one-third of the value of 
the crop is sustained, if it is left till the period when the 
seed is ripe, though the proportional value of the grass at 
that time is greater, i. e. as 7 to 5. The produce does not 
increase if the grass is left growing after the period of 
flowering, but uniformly decreases ; and the loss of latter- 
math, which (from the rapid growth of the foliage after the 
grass is cropped) is very considerable. These circum- 
stances point out the necessity of keeping this grass closely 
cropped, either with the scythe or cattle, to reap the full 
benefit of its great merits. 
XVIII. Bromus tectorum. Host. G. A. 1. 1. 15. 
Nodding panicled brome-grass. Nat. of Europe. 
Introduced 1776. H. K. 1. 168. 
At the time of flowering, the produce from a light sandy 
soil is 
oz. or lbs. per acre. 
Grass, 11 oz. The produce per acre - - 119790 0 = 7486 14 0 
80 dr. of grass weigh when dry - 42 dr. I 628 g 9 12 = s930 9 12 
The produce of the space ditto - 92. 1§ J 
The weight lost by the produce of one acre in drying - - 3 556 4 4 
64 dr. of grass afford of nutritive matter 3 dr, 7 _ 0 ^ 
The produce of the space, ditto - 8.1 i 5615 2 = 350 15 2 
This species, being strictly annual, affords no latter-math, 
which renders it comparatively of little value. 
XIX. Festuca cambrica. Hudson. W. B. 2. P. 155. 
Nat. of Britain. 
At the time of flowering, the produce from a light sandy 
soil is 
Grass, 10 oz. The produce per acre - - 108900 0 = 6806 4 0 
80 dr. of grass weigh when dry - 34 dr. 1 a^oqo 
The produce of the space, ditto - 68 J 
The weight lost by the produce of one acre in drying 
64 dr. of grass afford of nutritive matter 2. 1 dr. 4 
The produce of the space, ditto - 5. 2| J 
This species is nearly allied to the Festuca ovina , from 
which it differs little, except that it is larger in every 
respect. The produce, and the nutritive matter which it 
8 = 2892 10 
- 3913 9 
8 = 239 4 
