which has twice felt the sun, twice the frost; that bursts his granaries with overflowing harvests.
But ere yet our iron cleaves the unknown plain, be our care first to learn the winds, and the sky's shifting mood, and the ground's native nurture and dress, and what each quarter will bear and what each will reject. Here com, there grapes come more prosperously; yonder the tree drops her seedlings, and unbidden grasses kindle into green. Seest thou not how Tmolus sends scent of saffron India ivory, the soft Sabaeans their spice; but the naked Chalybes steel, and Pontus the castor drug, Epirus mares for Elean palms? From of old Nature laid such laws upon certain regions, an everlasting covenant, what time Deucalion of old cast on the unpeopled globe those stones whence the hard race of man was born. Come therefore, from the first months of the year straightway let the strong bulls upturn the rich floor of earth, and the full strength of summer suns bake the flat clods to dust. But if the land be not fertile, it will serve to ridge it by shallow furrows hard on Arcturus' rising; there, lest weeds choke the corn's luxuriance; here, lest scant moisture leave a barren waste of sand.
In turn likewise shalt thou let the stubbles lie fallow, and the idle field crust over unstirred; or else there under changed skies sow golden spelt, where before thou hadst reaped the pea with wealth of rattling pods, or the tiny vetch crop, or the brittle stalks and rustling underwood of the bitter lupin. For the field is drained by flax-
