SALT is indispensable to the health, especially in the summer. It is common to give it once a week, while they are at grass. It is still better to give them free access to it, at all times, by keeping it in a covered box, open on one side, as in the engraving annexed. A large hollow log, with holes cut along the side for the insertion of the heads of the animals, answers very well. A sheep having free access to salt at all times will never eat too much of it; and it will take its supply at such times and in such quantities as Nature demands, instead of eating of it voraciously at stated periods, as intermediate abstinence will stimulate it to do. When salt is fed but once a week, it is better to have a stated day, so that it will not be forgotten; and it is well to lay the salt on flat stones--though if laid in little handfuls on the grass, very little of it will be lost. TAR. This is supposed by many to form a very healthful condiment for sheep, and they smear the nose with it, which is licked and swallowed as the natural heat of the flesh, or that of the weather, causes it to trickle down over the nostrils and lips. Others, suffering the flock to get unusually salt-hungry, place tar upon flat stones, or in troughs, and then scatter salt upon it so that both may be consumed together. Applied to the nose, in the nature of a cataplasm, it may be advantageous in catarrhs; and in the same place, at the proper periods, its odor may, perhaps, repel the fly, the eggs of which produce the "gout in the head," as it is termed. However valuable it may be as a medicine, and even as a debergent in the case specified, there is but slight ground for confidence in it merely as a condiment. _Dry_, _sweet pastures_, and such as abound in aromatic and bitter plants, are best suited for sheep-walks. No animal, with the exception of the goat, crops so great a variety of plants. They eat many which are rejected by the horse and the ox, which are even essential to their own wants. In this respect they are valuable assistants to the husbandman, as they feed greedily on wild mustard, burdock, thistles, marsh-mallows, milk-weed, and various other offending plants; and the Merino exceeds the more recent breeds in the range of his selections.