The Third Georgic treats of the herd and the stud. The poet’s knowledge on these points must be strongly suspected of being but second-hand--rather the result of having studied some of the Roman “Books of the Farm,” than the experience of a practical stock-breeder. Such a work was Varro’s ‘On Rural Affairs,’ which Virgil evidently followed as an authority. From that source he drew, amongst other precepts, the points of a good cow, which he lays down in this formula:-- “An ugly head, a well-fleshed neck, Deep dewlaps falling from the chin, Long in the flank, broad in the foot, Rough hairy ears, and horns bent in.” Such an animal would hardly win a prize from our modern judges of stock. But Virgil, be it remembered, is giving instructions for selection with an eye to breeding purposes exclusively; and an Italian cow of the present day would not be considered by us a handsome animal. Besides, the object of the Roman breeder was to obtain animals which would be “strong to labour,”--good beasts under the yoke; not such as would lay on the greatest weight of flesh at the least possible cost, for the purposes of the butcher. His points of a good horse are entirely different, and approach more nearly our own ideal--“Fine in the head, short in the barrel, broad on the back, full in the chest.” Bay and dapple-grey he chooses for colour; white and chestnut he considers the worst. He had not reached the more catholic philosophy of the modern horse-dealer, that “no good horse was ever yet of a bad colour.” The nature of the subject in this Third Georgic allows the poet to indulge even more frequently in digressions. He gives a picture of pastoral life under the hot suns of Numidia, where the herdsman or shepherd drives his charge from pasture to pasture, carrying with him all he wants, like a Roman soldier in a campaign; and again of his winter life in some vague northern region which he calls by the general name of Scythia, but where they seem to have drunk (in imitation of wine, as the southern poet compassionately phrases it) some kind of beer or cider. But the most remarkable of these passages is that which closes the book, and describes the ravages of some terrible pestilence which, beginning with the flocks and herds, extended at last to the wild beasts and to the birds, and even to the fish. There is no historical account of such a visitation in Italy; and it is very probable that Virgil used his licence as a poet to embellish with imaginary details some ordinary epidemic, in order to present to his readers a companion picture to that of the great plague at Athens, which had been so powerfully described by his favourite model Lucretius.