AGRICULTURE WITH CHEMISTRY. 129 



loss of time in roaming about to procure it for them- 

 selves. 



Experience only can teach, or warrant the belief of 

 how few acres of ground, under the culture of artificial 

 grasses, when cut green, and daily given to working horses 

 and other cattle, will suffice for their maintenance. The 

 artificial grasses, or plants, best adapted to this purpose, 

 are, red clover, tares, and saint foin. None of these suc- 

 culent plants with large stems and leaves, answer so well 

 to be depastured as to be mown : not only on account of 

 the injury they receive in being bruised by the treading 

 of cattle, but by being constantly cropped and kept short, 

 they are deprived of the nourishment which they prin- 

 cipally receive by their stems and leaves. Saint foin is 

 best suited to chalky or dry soils, and to the southern 

 parts of Britain. It has often been tried without success 

 in the northern parts of England and in Scotland. 

 Winter tares have also been sown, but have not been 

 found to answer any valuable purpose. Clover and sum- 

 mer tares, therefore, should be the only plants of which 

 the cultivation on a large scale should in these parts be 

 attempted, and every prudent farmer will take care to 



R have 



