des Voyages, tom.xv.p.

289.
Pennant's British Zoology, vol.iii.p.

35.)] The fortifications of Europe and Asia were multiplied by Justinian; but the repetition of those timid and fruitless precautions exposes, to a philosophic eye, the debility of the empire.

[111] From Belgrade to the Euxine, from the conflux of the Save to the mouth of the Danube, a chain of above fourscore fortified places was extended along the banks of the great river.

Single watch-towers were changed into spacious citadels; vacant walls, which the engineers contracted or enlarged according to the nature of the ground, were filled with colonies or garrisons; a strong fortress defended the ruins of Trajan's bridge, [112] and several military stations affected to spread beyond the Danube the pride of the Roman name.