translated with an introduction by J. M. Cohen translated with an introduction by D. C. Lau. translated and with an introduction by J.M. Cohen. translated with an introduction by H. N. P. Sloman translated with an introduction by E. F. Watling. translated with an introduction by Julia Lovell translated with an introduction by Brian Stone translated with an introduction by T.S.Dorsch translated with an introduction by Tim Parks translated with an introduction by J.B. Leishman.