PLANTS OF THE CLOVER FAMILY. 77 



they are wet with dew or rain. If the cattle or 

 sheep are hungry they will eat so freely of the clover 

 that hoven or bloating may follow. Unless treat- 

 ment is promptly given they are pretty certain to 

 die. The treatment suitable is given on Page 162, 

 Observation 4. 



Observations. i. The common or medium red 

 clover is not specially adapted for being grown in 

 permanent pastures because of its short-lived habit 

 of growth. It may be well to sow it in these, but 

 only in limited quantities and with the expectation 

 that it will nearly all disappear at the end of two 

 or three years. 



2. When medium clover is to be sown on clay 

 lands or black loam soils, where it is liable to " lift " 

 or " heave " with the frost in the spring, such heav- 

 ing or lifting may be avoided in a very considerable 

 degree by first draining the lands. The heaving is 

 caused by the alternate freezing and thawing of the 

 lands that are surcharged with moisture. 



3. Much fall pasture may be furnished in 

 localities that are favored with an ample supply of 

 rainfall by sowing medium clover with all the cereal 

 crops grown, even though the land is to be plowed 

 again in the late autumn or in the spring following. 

 Much pasture may thus be obtained, especially in 

 "dropping" or showery seasons, to say nothing of 

 the plant food put into the land. But what is termed 

 "heavy seeding" should not be resorted to, lest a 

 period of dry weather should follow, when the seed 

 would be lost. Less than half the usual quantity 

 sown would be enough to risk thus. 



4. In seasons where clover is usually grown in 

 short .rotations and where seed crops are frequently 



