APPENDIX. xlv 



years it has propagated itself in this manner, on the 

 space of ground which it now occupies, and from which 

 this statement of its comparative value is made. The 

 produce of lucern in grass, comes nearer to this spe- 

 cies in quantity, but is greatly deficient in nutritive 

 matter, as much as 13 to 33. The long continuance 

 of lucern in the soil is therefore the only merit which 

 it possesses above the two last mentioned species; and 

 when that is the object of the cultivator, it will of ne- 

 cessity have the preference. 



The value of the grass of saintfoin is equal to 

 that of the T. prateme; and proportionally less than 

 that of the Trifolium macrorhizum, as 10 to 11. The 

 quantity of grass is very small, and on soils of the na- 

 ture above described, it is doubtless inferior. How- 

 ever, from the superior value of the grass, on dry hilly 

 situations or chalky soils, it may in such situations 

 possibly be their superior in every respect. 

 LTV. Medicago Sativa. Wither. B. 3. P. 643. 



Lucern. Nat. of Britain. 

 At the time the seed is ripe, the produce from a rich 



clayey loam, is oz. or Ibs. per acre 



Grass, 104 02.. The produce per acre 1132560 70785 



80 dr. of grass weigh when dry 32 dr.") * 



The produce of the space, ditto 665. 2 2-5 5 453 



The weight lost by the produce of one acre in drying 42471 



64 dr. of grass afford of nutritive matter 1.2 dr. } 



The produce of the space-, ditto 39 dr. 5 26544 6 ~7659 



LV. Hedysarum onobrychis. Wither. 3. P. 628. 

 Saintfoin. Nat. of Britain. 



At the time the seed is ripe, the product from a rich 

 clayey loam, is 



Crass, 13 oz. The produce per acre 141570 8848 2 



