A dissertation on the true Cythisus of the ancients. [electronic resource] : Proving that the Medicago, or Cythisus Maranthoe, (not the Bastard Sena, as asserted by a late Author) Is the Plant that was held in so great Esteem among the Romans. Also that it may be successfully made Use of for the Improvement of the most dry, barren, hilly Land, as Lucerne has been for that which is moister and nearer a Level; and in every respect answer the Excellent Character given of it by Columella, Pliny, Virgil, &c. In a Letter to a Nobleman, who favour'd this Enquiry. To which is added, An Account of the Great Profits which arise (if carefully managed) from sowing the Lucerne, and Burning of Clay, the bad Success of which in some few Places, may be entirely attributed to the Unskillfulness of those appointed to manage it. Also a Catalogue of the Best Seeds, the Season of sowing them, and the Time of their Persection. By Stephen Switzer.