The Limits of Empire: The Roman Army in the East. By IsaacB.. Clarendon Press, Oxford, 1990. Pp. xiv + 492, figs 13, maps 5. Price: £55.00. ISBN 0 19 814891 7.

Rome's Desert Frontier from the Air. By KennedyD. and RileyD.. Batsford, London, 1990. Pp. 256, figs 188. Price £29.95. ISBN 0 7134 6262 0.

The Eastern Frontier of the Roman Empire, Proceedings of a Colloquium held at Ankara in September 1988. Edited by FrenchD.H. and LightfootC.S.. British Institute of Archaeology at Ankara Monograph 11. BAR International Series 553 (i and ii). British Archaeological Reports, Oxford, 1989, Pp. 615, numerous illus. Price £45.00. ISBN 0 86054 700 0.