When sown alone, from 10 to 20 pounds of seed are used per acre. With all the conditions favorable, 12 to 15 pounds should suffice. When sown with rape for pasture, 3 pounds of rape and 10 of the clover, or even a less quantity, should be enough. When sown with winter rye or winter oats, about 1 bushel of each and 10 pounds of clover should suffice, and when sown with the common or the sand vetch, 1/2 bushel of either and 10 pounds of the clover should be enough. When sown in the chaff, from 2 to 3 bushels ought to suffice, but the amount required will be much affected by the character of the seed crop. =Pasturing.=--Crimson clover may be pastured in the autumn or in the spring or at both seasons, either when sown alone, or in conjunction with some other pasture crops, as winter rye, oats, barley or vetches. But it is not probable that it will ever become so popular as some other pasture plants that grow during the same seasons of the year; since, first, when it is grown, it is usually wanted for green manure; second, it does not under some conditions grow satisfactorily with other crops; and third, when grazed down in the autumn the covering thus removed renders the plants much more liable to perish in the winter. When, however, it is sown early in the season, as in July, along with Dwarf Essex rape, or even alone, much grazing may be furnished, even though the clover should not survive the winter. It may be grazed by horses, mules, cattle, sheep or swine, but when grazed with cattle and sheep, it is probable that some danger from hoven or bloat will be present, as when grazing other kinds of clover. (See page 94.) This danger, however, will be lessened, if not entirely removed, when nurse crops are grown with the clover, except in the case of rape. The grazing should not begin when the plants are small, lest the growth should be too much hindered at a season when growth is critical. =Harvesting for Hay.=--Crimson clover is ready to be cut for hay when coming into, and a little before it is in, fullest bloom. Some authorities claim that it should be harvested when the blooms begin to appear. It should certainly not be allowed to pass the stage of full bloom, lest the hay when cured should prove hurtful to horses and possibly to other live stock, because of the presence of hair balls, which are then liable to form from the hairs so numerously found on this plant. These balls produce death by forming an impermeable wedge in the intestines of horses, thereby impeding and in some instances totally arresting the process of digestion. These balls, almost circular in form, are composed of minute and rather stiff hairs, and several have been found in one animal. These hairs, numerous on the heads; do not stiffen sooner than the period of full bloom; hence, until that stage is reached in the growth of the plants, the danger from feeding cured hay made from them does not occur.