(80.) _Influence of the food on the quality of Mutton._--Diet has a powerful influence on the constituents of the body. A rank succulent pasture taints the flesh, or renders it insipid and unpleasant, while a dry aromatic herbage communicates a delightful flavour, and enables people versed in the pleasures of the table easily to discriminate between turnip-fed and grass-fed mutton; and again, between the latter, and that which has spent its existence on the hills. In Touchwood's Syllabus of Culinary Lectures, appended to the _Cook and Housewive's Manual_, by Mistress Dods, we are briefly informed, that "the black-faced, or short-sheep, are best for the table, though _more depends on the pasture than the breed_." More, in fact, depending on feeding and management, than on the variety of the animal, though this of course is not to be neglected. A notion has been advanced in this country, that artificial pastures are less nutritious than natural ones, and that the animals which are raised upon them are, consequently, of a laxer fibre, and the flesh less wholesome, as well as less savoury. This, I have no doubt, is perfectly correct, as many _diseases_ may be traced to such improper food, and what is calculated to produce in some cases actual disease, cannot fail to prove at all times capable of retarding the advancement of the animal. These soft succulent pastures appear not to be positively poisonous, but to be negatively so from their deficiency in saline matter; the rapid growth of the plant preventing the elimination and absorption, of many of these ingredients with which the soil abounds. This is proved by the greater necessity which exists for the use of salt in the food of the herbivorous animals of hot climates, than in that of such as inhabit temperate, or cold latitudes; vegetation being in the former more rapid in its details, and in certain states of the atmosphere hurried in the extreme, while in the latter the process proceeds with that leisure which enables the plant to make good the measure of its constituents, as it increases in size. In many parts of North America it is well known, that, at certain seasons, the wild animals make eagerly for the salt _licks_; and, following up this hint, the settlers easily induce their oxen to keep near their dwellings, by serving them periodically with salt. When the wild cattle of South America had greatly increased, it was discovered that they could not exist unless they had access to streams which had acquired brackish particles from the soil. _If salt, in places devoid of it, was not furnished to them by man, they became stunted, unfruitful, and the herds soon disappeared._ Even in this country, the free use of salt is found to be highly beneficial to our domestic animals, preventing the occurrence of many of those diseases which are otherwise sure to follow the use of food such as is mentioned above, and ensuring that sound health which is so conducive to the accumulation of fat.