HORTUS GKAMINEUS WOBURNENSIS. 243 



powers, permanency in the soil, and the facilities they offer for 

 their propagation by seed. 



The proportions in which the seeds of the different species 

 should be mixed for permanent pasture : — 



Cock's-foot grass {Dactylis glomerata) - - 2 bushels. 



Meadow-fescue {Festuca pratensis) - - 2 



Meadow foxtail-grass {Alopecurus pratensis) - 2 



Rough-stalked meadow-grass {Poa trivialis) - 2 



Tall oat-like soft-grass {Holcus aveimceus) - - Oi 



Meadow cat's-tail (P/?/gw/?i prafewse) - - 15 lbs. 



Hard, or smooth fescue {Festuca duriuscula, \e\ } cy \ ,,shel^ 



glabra) - - - - -S 



Crested dog's-tail {Cynosurns cr'utatus) - - 1 



Nerved meadow-grass {Foa iiervata) - ~ O3 



Wood meadow-grass {Poa nemoralis) - - 1 



Narrow-leaved meadow-grass {Pou angustifolia) - OJ 



Broad-leaved creeping bent, or florin {Agrostis \ r^^ 



stolonifera, var. latifoUa) - - - S ^ 



Rye-grass {Lolium perenne) - - - I 



White or Dutch clover (Trj/b/mw repe«s) - - 15 lbs. 



Bush vetch ( Ficfa se;>mm) _ _ . Og bushel. 



Sweet-scented vernal-grass {Anlhoxanthum odoratum) OJ 



Vexewxiidl XQ& c\ov ex {TrifoUumpratense perenne) - 12 lbs. 



Achillea millefolium, yarrow - - - 4 



The proper quantity of grass seeds to sow, per acre, is a point of 

 the greatest importance, as regards the expense of the seed, and 

 the speedy formation of the most valuable sward. The circum- 

 stances of soil, tilth, and weather, at the time of sowing, all influ- 

 ence in a great degree the successful vegetation of the seed. Should 

 less seed be sown than is sufficient to furnish every part of the soil 

 with plants of grass, a proportionate loss of time, labour, and land, 

 will be suffered. Minute vacancies of plants in a recently-made 

 pasture, or in a field of seedling grasses, may, to general observa- 

 tion, appear insignificant, or escape observation altogether ; but if 

 these apparently minute deficiencies which occur over the surface 

 of an acre be calculated, a difference, perhaps, of from ten to fif- 

 teen per cent in the produce will be found to exist between a per- 

 fectly furnished surface of land, and one where the deficiencies of 

 plants are so minute as scarcely to be perceived. In the most 



