It has long been the custom to separate the foals from their mothers when five, six, or seven months old; for experience has proved, that those which are suckled ten or eleven months, are not of equal value with them which are weaned sooner, though they are generally fuller of flesh. After six or seven months they are weaned; bran is then given them twice a day, and a little hay, of which the quantity is increased in proportion as they advance in age. They are kept in the stable as long as they seem to retain any desire to return to the mares; but when this desire ceases they are suffered to go out, and led to pasture; but care must be taken not to suffer them to go out to pasture fasting; they must have a little bran, and be made to drink an hour before they are suffered to graze, and should never be exposed to great cold or rain. In this manner they pass the first winter: in the May following they may be permitted to graze every day, and to remain out in the fields till the end of October, only observing not to let them eat the after-grasss, for if they are accustomed to that delicacy they will grow disgusted with hay, which ought, however, to be their principal food during the second winter, together with bran mixed with barley or oats wetted. They are managed in this manner, letting them graze in the day time during winter, and in the night also during the summer, till they are four years old, when they are taken from the pastures, and kept on dry food. This change in food requires some precaution; for the first eight days they should have nothing but straw, and it is proper to administer some vermifuge drinks, to destroy those worms which may have been generated from indigestion and green food. M. de Gaursault, who recommends this practice, does it from experience; but at all ages, and in all seasons the stomachs of horses are stuffed with a prodigious number of worms. They are also found in the stomach of the ass; and yet neither of these animals are incommoded thereby. For this reason worms should not be looked on as an accidental complaint caused by bad digestion and green food, but rather as a common effect depending upon the nourishment and digestion of these animals. Great attention must be paid in weaning young colts, to put them into a proper stable, not too hot, for fear of making them too delicate and too sensible of the impressions of the air. They should frequently have fresh litter and be kept very clean, by frequently rubbing them down with a wisp of straw. But they should not be tied up or curried till they are near three years old, their skin being till then too delicate to bear the comb. The rack and manger must not be too high, as the necessity of raising their heads to reach their food may give a habit of raising it in that fashion, and spoil their necks.