M. d'Anville (see his Maps, and l'Euphrate et le Tigre, p. 92, 93) traces their march, and assigns the true position of Hatra, Ur, and Thilsaphata, which Ammianus has mentioned. He does not complain of the Samiel, the deadly hot wind which Thevenot (Voyages, part ii. 1. i. p. 192) so much dreaded.