The force under Macdonald’s command consisted of 21,000 men, including 2000 cavalry, and of 16,500 employed in garrisons and in the points of communication; the army of Aragon also, which Suchet commanded, was under his direction. They could not in Catalonia, as they had done in other parts of Spain, press forward, and leave defensible towns behind them: it was necessary to take every place that could be defended by a resolute people, and to secure it when taken. After Lerida had been villanously betrayed by Garcia Conde, Tortosa became the next point of importance for the French to gain, for while that city was held by the Spaniards, the communication between Valencia and Catalonia could not be cut off. Tarragona and Valencia were then successively to be attacked, but Mequinenza was to be taken before Tortosa was besieged. This town, which was called Octogesa when the Romans became masters of Spain, which by the corrupted name of Ictosa was the seat of a bishop’s see under the Wisigoths, and which obtained its present appellation from the Moors, was at the present juncture a point of considerable importance, because it commanded the navigation of the Ebro, being situated where that river receives the Segre. It was now a decayed town with a fortified castle: the works never had been strong, and since the Succession-war had received only such hasty repairs as had been made, at the urgent representations of General Doyle, during the second siege of Zaragoza. These preparations had enabled it to repulse the enemy in three several attempts after the fall of that city. It had now, by Doyle s exertions, been well supplied with provisions, but every thing else was wanting; the garrison consisted of 700 men, upon whose discipline or subordination the commander, D. Manuel Carbon, could but ill rely. He himself was disposed to do his duty, and was well supported by some of his officers. ♦MAY 18.♦