But while the bombardment made an interesting spectacle, as a military operation it was proving unsatisfactory. The ordnance thus far received by Scott was inadequate for the reduction of the city--to say nothing of Ulúa. With mortars, especially as the distances could not be ascertained precisely, it was impossible to be sure of hitting the bastions and forts. Shells could be thrown into the town, but while the houses suffered much, the fortifications and garrison escaped vital damage, and there was no sign of yielding. Not a few in the American army, who had supposed that a fortified city could be taken at sight like a mint julep, grew impatient; the officers eager for assault fumed; Worth, proud of his quick work at Monterey, sneered; Twiggs grunted. As an army man Scott naturally desired that branch of the service to reap all the glory of its campaign, but he now found himself compelled to ask for naval guns heavy enough to breach the wall, and make an assault practicable; and when Perry, who had taken Conner's place on the twenty-first, insisted that men from the squadron should work them, he consented.[22.24] The new battery, constructed by Robert E. Lee and mounting three long 32's for solid shot and three 68's for shells, was planted just behind the bushy crest of a slight eminence, only some 800 yards from the city wall, where the enemy did not suppose that such an enterprise would be ventured; and until the guns were about ready to be unmasked on the morning of the twenty-fourth, its existence was not suspected.[22.23] Here were instruments of power and precision, and they told. The Mexicans concentrated upon them a terrific fire, but with no serious effect; and when on the next morning a battery consisting of four 24-pounders and two 8-inch howitzers joined the infernal chorus, the fire, though hindered occasionally by the tardiness of ammunition, was "awful," said Scott and Lee, while the city appeared like one dense thunder-cloud, red with flashes and quivering with incessant roars.[22.24] That night the batteries played still more fiercely. Sometimes four or five shells were sizzling through the air at once. The fire, said an officer, was now "perfectly terrific"; and to heighten the wildness of the scene, many vessels could be observed by the light of the moon going ashore in the norther. About thirty were wrecked by this one gale, and others had to cut away their masts. In the meantime preparations for assaulting both by land and by water, should an assault prove to be necessary, were actively pressed.[22.24] [THE SITUATION IN VERA CRUZ]