The new battery on the Little Teson was costly to build and maintain--on one night the French lost sixty-one men killed and wounded in it[286]. But it was very effective; the original breach was much enlarged, and the old wall behind it was reduced to ruins. Meanwhile a mortar battery, placed in the conquered suburb, played upon the parts of the town which had hitherto escaped bombardment, and reduced many streets to ashes. The position of the garrison was unsatisfactory, and Herrasti sent out several emissaries to beg Wellington to help him, ere it was too late. Most of these adventurers were captured by the French, but at least two reached the British commander[287], who had recently come up to the front to observe for himself the state of the enemy’s forces. He found them too strong to be meddled with, and sent back a letter stating that he was ready to move if he saw any chance of success, but that at present none such was visible. He then retired, after leaving Craufurd two squadrons of the 16th Light Dragoons to strengthen his thin outpost line. Herrasti, though much dispirited by Wellington’s reply, continued to make a vigorous defence, but the town was now mostly in ruins, and the breach gaped wide. [286] Belmas, iii. 245, July 2. [287] See Shaw-Kennedy’s _Diary_, pp. 208-9 and 211. On July 4th Masséna, who had again come up to visit the siege, obtained intelligence that Wellington had been with the Light Division at Gallegos, and determined to push back the British outposts, in order to discover whether the front line of his enemy had been strengthened by any troops from Portugal. It seemed to him likely enough that the British general might have massed his army for a bold stroke at the besiegers, now that the strength of Ciudad Rodrigo was running low. Accordingly St. Croix’s division of dragoons, supported by a brigade of Junot’s infantry, crossed the Azava brook and drove in Craufurd’s cavalry pickets. They retired, skirmishing vigorously all the way, to Gallegos, where the five infantry battalions of the Light Division had concentrated. Craufurd, having strict orders from his chief that he was not to fight, fell back on Fort Concepcion, the work on the Spanish frontier half way to Almeida. Thereupon the French retired, having obtained the information that they wanted, viz. that Craufurd had not been reinforced by any considerable body of troops from the rear. The Light Division had manœuvred with its customary intelligence and alertness all day; its flanks were being continually turned by horsemen in overpowering numbers, but it beat them off with ease, and lost only five men wounded while falling back across ten miles of absolutely open country. The French lost five officers and over twenty men[288], mostly in combats with the German Hussars, who surpassed themselves on this day, and repeatedly charged the heads of the hostile columns on favourable occasions. For the future