The most complete account of the acquisition of the marbles, based on correspondence between Lord Elgin and his agents in Athens, is by Arthur H. Smith, “Lord Elgin and His Collection,” Journal of Hellenic Studies 36 (1916), pp. 163–372. Very valuable, too, is William St. Clair, Lord Elgin and the Marbles (Oxford: Oxford Univ. Press, 1983). See also Jacob Rothenberg, Descensus Ad Terram: The Acquisition and Reception of the Elgin Marbles (New York and London: Garland Publishing Company, 1977).