Banks, after gaining advanced positions in contact with the enemy, forbore to press them hard because, as has been seen, his whole purpose was to hold the Confederates where they stood until he could hear of Grover or from Grover. As the day advanced without news or the long-expected sound of Grover's guns, Banks began to grow impatient and to fear that the adventure from which so much had been hoped had somehow miscarried. He therefore became even more anxious than before lest the Confederates should move off under cover of the coming night. Accordingly, during the afternoon, although it had been his previous purpose not to deliver an assault until certain that Grover held the Confederate line of retreat, Banks gave discretionary orders to Emory and Weitzel to form for an attack and move upon the Confederate works if a favorable opportunity should present itself. The exercise of this discretion in turn devolved upon the commanders of the front line, that is, upon Weitzel and Paine, for Gooding, being out of communication, except by signal, with the troops on the west bank, was occupied in conforming to their movements. Paine and Weitzel, after conferring, resolved to attack, and having made every preparation, only waited for the word from the commanding general. The day was waning; it was already past four o'clock; and Banks was still somewhat anxiously weighing the approach of night and the cost of the assault against the chance of news from Grover, when suddenly, straight up the bayou, and high above the heads of Banks and his men, a 9-inch shell came hurtling, and as it was seen to burst over the lines of Bisland, from far in the rear broke the deep roar of the _Clifton_'s bow-gun. Soon from below the obstructions that barred her progress came a messenger bearing the long-expected tidings of Grover. At last he was on land and in march toward his position. With a sense of relief Banks recalled the orders for the assault and drew his front line back out of fire of the Confederate musketry so that the men might rest. To relieve the exhausted skirmish line, the 4th Massachusetts and the 162d New York of Ingraham's brigade were sent forward from the reserve, leaving him only the 110th New York. By dawn the next morning, at all events, Banks calculated, the turning column would be in place; accordingly during the night he gave orders to assault along the whole front as soon as it should be light enough to see.