Minutes, experiments, observations, and general remarks, on agriculture, in the southern counties; a new edition. To which is prefixed A sketch of the Vale of London, and an outline of its rural economy: now first published. By Mr. Marshall - Marshall, William Mr 1745-1818 (printed for G. Nicol, Bookseller to his Majesty, Pall-Mall; G. G. and J. Robinson, Paternoster-Row; and J. Debrett, Piccadilly, 1799)