The pacha, who resided at Saana, commanded twenty-one beys; but no revenue was ever remitted to the Porte, (Marsigli, Stato Militare dell' Imperio Ottomanno, p.

124,) and the Turks were expelled about the year 1630, (Niebuhr, p.

167, 168.)] [Footnote 24: Of the Roman province, under the name of Arabia and the third Palestine, the principal cities were Bostra and Petra, which dated their aera from the year 105, when they were subdued by Palma, a lieutenant of Trajan, (Dion.

Cassius, l.

lxviii.) Petra was the capital of the Nabathaeans; whose name is derived from the eldest of the sons of Ismael, (Gen.xxv.12, &c., with the Commentaries of Jerom, Le Clerc, and Calmet.) Justinian relinquished a palm country of ten days' journey to the south of Aelah, (Procop.