The London School of Economics and Political Science (University of London) Houghton Street, Aldwych, London, W.C.2 ] No. 7 in Series of Reprints of Searce Tracts in Economic and Political Science A CRITICAL DISSERTATION ON THE NATURE, MEASURES, AND CAUSES OF VALUE; SRIEFLY IN REFERENCE TO THE WRITINGS OF MR. RICARDO AND HIS FOLLOWERS bv THE AUTHOR OF ESSAYS ON THE FORMATION AND PUBLICATION OF OPINIONS, etc., etc. SAMUEL BAILEY (SAMUEL BAILEY] 1931