By Sir Thomas Urquhart of Cromarty. Edited with an introduction and commentary by R. D. S. Jack and R. J. Lyall.
Contents:
From the first edition, London 1652, of Ekskubalauron; or, the discovery of a most exquisite jewel... The work includes an appeal for release from prison in London and a proposal for a universal language. Also passages omitted from the Jewel but printed in Logopandecteision (1653); and letters by Urquhart, 1648-55.