12.  Briza media.  Quaking-grass.—­Is common in meadow land, and helps to make a thick bottom; it does not however appear to be worth the trouble of select culture.  It is bitter to the taste.

13.  Bromus mollis.  Soft Brome-grass.—­Mr. Curtis has given a very clear account of this grass, which he says predominates much in the meadows near London, but that the seeds are usually ripe and the grass dried up before the hay time:  hence it is lost; and he in consequence considered it only in the light of a weed.  It has seldom occurred to me to differ in opinion from this gentleman, who certainly has given us, as far as it goes, a most perfect description of our useful grasses:  but experience has convinced me that the Soft Brome-Grass, which seeds and springs up so early, makes the chief bulk of most of our meadows in March and April; and although it is ripe and over, or nearly so, by the hay harvest, yet the food it yields at this early season is of the greatest moment, as little else is found fit for the food of cattle before the meadow is shut up for hay, and this plant being eaten down at that season is not any loss to the hay crop.  Whoever examines the seeds of this grass will be led to admire how wonderfully it is fitted to make its way into the soil at the season of its ripening, when the land is thus covered with the whole produce of a meadow.  I notice this curious piece of mechanism [Footnote:  Many seeds of the grasses are provided with awns which curl up in dry weather and relax with moisture.  Thus by change of atmosphere a continued motion is occasioned, which enables the seeds to find their way through the foliage to the soil, where it buries itself in a short time in a very curious manner.], not that it is altogether peculiar to this plant, but to show that Nature has provided it means of succeeding in burying itself in the ground, when all the endeavours of man could not sow the land with any other to answer a similar purpose.  If the seeds of this grass were collected and introduced in some meadows where it is not common, I am sure the early feeding would be thereby improved.

The seeds are sometimes mixed with those of Rye-grass at market, and it is known by the name of Cocks:  it has the effect of reducing such samples in value, but I should not hesitate in preferring such to any other.  If any one should be inclined to make the above experiment, two pecks of the seed sown on an acre will be sufficient.—–­See Treatise on Brit.  Grasses by Mr. Curtis, edit. 5.

14.  Cynosurus cristatus.  Crested dog’s-tail-grass.—­A very fine herbage, and much relished by sheep, &c.; it grows best in fine upland loam, where it is found to be a most excellent plant both for grazing and hay.  The seeds are to be purchased sometimes at the seedshops.  About twelve pounds will sow an acre.—–­See Observations on laying Land to Grass, in the Appendix to this work.