APPENDIX. xxxix 



powers of the grass are superior in direct proportion, 

 as 6 to 8. 



XLI. Nardus strlcta. Engl. Bot. 290. Host. G. A. 



2. t. 4. Upright mat-grass. Nat. of Britain. 

 At the time the seed is ripe, the produce is 



oz. or Ibs. per acre 

 Grass, 9 oz. The produce per acre 98010 6125 10 



80 dr. of grass weigh when dry 32 dr. "> 



The produce of the space, ditto 57 2 2-5 $ S9204 ( 



<The weight lost by the produce of one acre in drying 3675 6 



64 dr. of grass afford of nutritive matter 2.1 dr. ") 



The produce of the space, ditto 5.0 1-5 y 



XLII. Triticum, Sp. 

 Wheat-grass. 



At the time of flowering, the produce from a rich 

 sandy loam, is 



Grass, 18 oz. The produce per acre 196020 012251 4 



80 dr. of grass weigh when dry 32 dr. 



The produce of the space, ditto 115 1-5 3 



The weight lost by the produce of one acre in drying 7350 12 



64 dr. of grass afford of nutritive matter 2-2 dr. 



The produce of the space, ditto 11.1 dr. $ 7657 



XLIII. Festucafluitans. Curt. Lond. Engl. Bot. 1520. 

 Poa fluitans. Floating fescue grass. Nat. of 

 Britain. 



At the time of flowering, the produce from a strong 

 tenacious clay, is 



Grass, 20 oz. The produce per acre 217800 13612 8 



80 dr. of grass weigh when dry 24 dr. "I 



The produce of the space, ditto 96 dr. J 6534 ~ 4083 12 < 



The weight lost by the produce of one acre in drying 9528 12 



64 dr. of grass afford of nutritive matter 1.3 dr. ) 



The produce of the space, ditto 8.3 dr. 5 5955 "~ 372 3 7 



The above produce was taken from grass that 

 had occupied the ground for four years, during which 



