Making meager allowance for a reserve, it required the whole force to be constantly in the trenches, and, when they were all on duty, it did not furnish one man to the yard of the developed line. On the 19th two assaults were made at the center and left. Both were repulsed and heavy loss inflicted; our loss was small. At the game time the mortar-fleet of Admiral Porter from the west side of the peninsula kept up a bombardment of the city.
Vicksburg is built upon hills rising successively from the river. The intrenchments were upon ridges beyond the town, only approaching the river on the right and left flanks, so that the fire of Porter's mortar-fleet was mainly effective upon the private dwellings, and the women, the children, and other noncombatants.
The hills on which the city is built are of a tenacious calcareous clay, and caves were dug in these to shelter the women and children, many of whom resided in them during the entire siege. From these places of refuge, heroically facing the danger of shells incessantly bursting over the streets, gentlewomen hourly went forth on the mission of humanity to nurse the sick, the wounded, and to soothe the dying of their defenders who were collected in numerous hospitals. Without departing from the softer character of their sex, it was often remarked that, in the discharge of the pious duties assumed, they seemed as indifferent to danger as any of the soldiers who lined the trenches.
During the 20th, 21st, and the forenoon of the 22d, a heavy fire of artillery and musketry was kept up by the besiegers, as well as by the mortar- and gun-boats in the river. On the afternoon of the 22d preparation was made for a general assault. The attacking columns were allowed to approach to within good musket-range, when every available gun was opened with grape and canister, and our infantry, "rising in the trenches, poured into their ranks volley after volley with so deadly an effect that, leaving the ground literally covered in some places with their dead and wounded, they [the enemy] precipitately retreated." One of our redoubts had been breached by their artillery previous to the assault, and a lodgment made in the ditch at the foot of the redoubt, on which two colors were planted. General Stevenson says in his report:
"The work was constructed in such a manner that the ditch was commanded by no part of the line, and the only means by which they could be dislodged was to retake the angle by a desperate charge, and either kill or compel the surrender of the whole party by the use of hand-grenades. A call for volunteers for this purpose was made, and promptly responded to by Lieutenant-Colonel E. W. Pettus, Twentieth Alabama Regiment, and about forty men of Waul's Texas Legion. A more gallant feat than this charge has not illustrated our arms during the war. The preparations were quietly and quickly made, but the enemy seemed at once to divine our intentions, and opened upon the angle a terrible fire of shot, shell, and musketry. Undaunted, this little band, its chivalrous commander at its head, rushed upon the work, and, in less time than it required to describe it, the flags were in our possession. Preparations were then quickly made for the use of hand-grenades, when the enemy in the ditch, being informed of our purpose, immediately surrendered.
"From this time forward, although on several occasions their demonstrations seemed to indicate other intentions, the enemy relinquished all idea of assaulting us, and confined himself to the more cautious policy of a system of gradual approaches and mining."
His force was not less than sixty thousand men. Thus affairs continued until July 1st, when General Pemberton thus describes the causes which made capitulation necessary:
"It must be remembered that, for forty-seven days and nights, those heroic men had been exposed to burning suns, drenching rains, damp fogs, and heavy dews, and that during all this period they never had, by day or by night, the slightest relief. The extent of our works required every available man in the trenches, and even then they were in many places insufficiently manned. It was not in my power to relieve any portion of the line for a single hour. Confined to the narrow limits of trench, with their limbs cramped and swollen, without exercise, constantly exposed to a murderous storm of shot and shell. . . . Is it strange that the men grew weak and attenuated? . . . They had held the place against an enemy five times their number, admirably clothed and fed, and abundantly supplied with all the appliances of war. Whenever the foe attempted an assault, they drove him back discomfited, covering the ground with his killed and wounded, and already had they torn from his grasp five stands of colors as trophies of their prowess, none of which were allowed to fall again into his hands."
Under these circumstances, he says, he became satisfied that the time had arrived when it was necessary either to evacuate the city by cutting his way out or to capitulate. Inquiries were made of the division commanders respecting the ability of the troops to make the marches and undergo the fatigues necessary to accomplish a successful sortie and force their way through the enemy; all of whom reported their several commands quite unequal to the performance of such all effort. Therefore, it was resolved to seek terms of capitulation. These were obtained, and the city was surrendered on July 4th.
The report of General Pemberton contains this statement: