Note 17 — II. MR. FINLAY'S HISTORY OF GREECE.

'Under the same tactics'—the tactics of 'refusing' her columns to the enemy. On this subject we want an elaborate memoir historico-geographical revising every stage of the Roman warfare in Pers-Armenia, from Crassus and Ventidius down to Heraclius—a range of six and a half centuries; and specifically explaining why it was that almost always the Romans found it mere destruction to attempt a passage much beyond the Tigris or into central Persia, whilst so soon after Heraclius the immediate successors of Mahomet overflowed Persia like a deluge.