After the first attack on the right had wellnigh spent itself, and when its renewal, in conjunction with an advance on the centre and left, was momentarily expected, Dwight thought to create a diversion and at the same time to develop the strength and position of the Confederates toward their extreme left, where their lines bent back to rest on the river, and to this end he ordered Nelson to put in his two colored regiments. This portion of the Confederate line occupied the nearly level crest of a steep bluff that completely dominates the low ground by the sugar-house, where the telegraph road crosses Foster's Creek. Over this ground the colored troops had to advance unsupported to receive their first fire. The bridge had been burned when the Confederates retired to their works. Directly in front of the crest, and somewhat below it, a rugged bluff stands a little apart, projecting boldly from the main height with a sharp return to the right, so as to form a natural outwork of great strength, practically inaccessible save by the road that winds along the bottom of the little rivulet at the foot of the almost perpendicular flank. This detached ridge is about four hundred yards in length. It was held by six companies of the 39th Mississippi regiment, under Colonel W. B. Shelby, while behind, in the positions of land batteries III. and IV., were planted six field pieces, and still farther back on the water front the columbiads of Whitfield and Seawell, mounted on traversing carriages, stood ready to rake the road with their 8-inch and 10-inch shell and shrapnel.
Shortly after seven o'clock, Nelson sent in the 1st Louisiana Native Guards, under Lieutenant-Colonel Bassett, in column, to force the crossing of the creek. The 3d Louisiana Native Guards followed in close support. Just before the head of the column came near the creek, the movement was perceived by the Confederates, who immediately opened on the negroes a sharp fire of musketry from the rifle-pits on the detached bluff; at the same moment the field guns opened with shell and shrapnel from the ridge behind, and as the men struggled on through the creek and up the farther bank they became exposed to the enfilade fire of the columbiads. When, in mounting the narrow gorge that led up the hill, the head of the column, necessarily shattered as it was by this concentrated fire, had gained a point within about two hundred yards of the crest, suddenly every gun opened on them with canister. This was more than any man could stand. Bassett's men gave back in disorder on their supports, then in the act of crossing the creek, and the whole column retired in confusion to its position near the sugar-house on the north bank. Here both regiments were soon re-formed and again moved forward in good order, anticipating instructions to renew the attack; yet none came, and, in fact, the attack was not renewed, although the contemporary accounts, some of them even official, distinctly speak of repeated charges. In this abortive attempt, Captain Andrew Cailloux and Second Lieutenant John H. Crowder, of the 1st regiment, were instantly killed. Cailloux, who is said to have been a free man of color, although all the officers of his race were at that time supposed to have resigned, fell at the head of the leading company of his regiment, while gallantly cheering on his men. The 1st regiment lost, in this brief engagement, 2 officers, and 24 men killed and 79 wounded--in all, 105. The 3d, being far less exposed, as well as for a shorter time, lost 1 officer and 5 men killed, and 1 officer wounded--in all, 7.