APPENDIX. xxi 



large when compared with others which affect a similar 



soil. 



XVU. Dactylis glomerata. Engl. Bot. 335. Fl. 



Dan. 743. Round-headed cock's-foot grass, 

 Nat of Britain. Wither. B. 2. E. 149. 

 At the time of flowering, the produce from a rich 



Sandy loam, is O z. or Ibs. per acre 



Grass, 41 oz. The produce per acre N 446490 27905 10 



80 dr. of grass weigh when dry 34 dr. 



The produceof the space, ditto 2784-S dr. 189758 ~ 11859 " 4 

 The weight lost by the produce of one acre in drying 16045 11 12 



64 dr. of grass afford of nutritive matter 2.2 dr.") 

 The produce of the space, ditto 25.2 l l7424 ~ 1089 



At the time the seed is ripe the produce is 



Grass, 39 oz. The produce per acre 424710 26544 6 



80 dr. of grass weigh when dry 40 dr.^ 



The produce of the space, ditto 312 dr. 5 2l2 



The weightiest by the produce of one acre in drying 13272 3 



64 dr. of grass afford of nutritive matter 3. 



r.^ 



The produce of the space, ditto 34. 1-23 23226 5 ~~ 1451 10 5 



The weight of nutritive matter which is gained by leaving 

 the crop till the seed be ripe, being more than one third 

 part of its value, is 362 10 5 



The proportional value which the grass at the 

 time of flowering, bears to that at the time the seed is 

 ripe, is as 5 to 7, nearly, 



The produce of latter-math is 



Grass, 17 oz. 8 dr. The produce per acre 190575 11910 15 

 64 dr. of grass afford of nutritive matter 1.2 dr. 4466 9 28110 9 



The proportional value which the grass of the. 

 latter-math bears to that at the time of flowering, is as 

 6 to 10; and to that at the time the seed is ripe, as 6 

 to 14. 64 dr. of the straws at the time of flowering 

 afford of nutritive matter 1 .2 dr. The leaves or latter- 

 math, and the straws simply, are therefore of equal 



