A dissertation on the true cythisus of the ancients : proving that the medicago or Cythisus maranthae ... 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 ... : to which is added, an account of the great profits which arise ... from sowing the lucerne and burning of clay : also a catalogue of the best seeds ... /