Owing to some unfortunate misunderstanding, the surgeons of the Eighteenth corps were ordered to the right of the line to establish field hospitals; consequently, when the wounded of that corps began to come in, there were none of their surgeons at hand. The surgeons of our own division, however, quickly proceeded to establish a hospital for them, in which they were all received and cared for, their wounds dressed, the shattered limbs removed, and all their wants attended to. The medical officers of the Eighteenth corps expressed their warmest gratitude for this act of kindness on the part of the Sixth corps surgeons, this being the second time that we had found an opportunity of assisting them in an emergency.

Our lines were daily drawn more closely around Petersburgh, but no other general action was brought on for some time. There was constant firing of artillery from both sides, and now and then the rattle of musketry would pass along the lines.

On the 22d, Colonel Bidwell's brigade occupied the front line of rifle pits. The sun was shining brightly, and our men, unprotected by shelter, were striving to pass the time with as little discomfort as possible. A group of men of the Seventy-seventh were behind the breastwork, stretched out upon the sand, resting upon their elbows and amusing each other with jokes, when a shell came shrieking into their midst. Its explosion threw them in every direction. One went high in the air and fell twenty feet from the spot where he was lying when the shell exploded. Strange to tell, not a man was killed, yet three had each a leg crushed to jelly, and two others were seriously wounded. The three whose legs were crushed were Sergeant James Barnes, James Lawrence, and James Allen, all of company A. The poor fellows were taken to the field hospital completely prostrated from the shock, cold sweat stood upon their pallid brows, and life seemed but to flicker before going out. The surgeons were making haste to load the wounded and sick into ambulances to send to City Point, for we were ordered to march at a moment's notice. "You can do nothing for those men," said the wide awake, enterprising Doctor Hall, who was superintending the loading of the ambulances, as he saw the surgeon who had charge of the operations prepare to remove the mangled members. "Better put them into ambulances and let them have a chance for their lives! There is no time now to wait for operations." "How long will it take you to load your ambulances, doctor?" "Twenty minutes, at least." "Then I will have the men ready for you." The surgeon gave to each of the unfortunate ones a glass of brandy, then administered his chloroform, and in less than thirty minutes had amputated the limbs, dressed the stumps, and placed the men in ambulances. They were taken at once to City Point, where they were placed together. Their cases excited great interest among the attendants in the hospital and the visitors, for each had lost a leg just above the knee, the name of each was James, they were all from one company, all wounded by a single shell, and all as cheerful as were ever wounded men. They were afterward removed to Washington and again placed side by side, and here, also, they were subjects of great interest to visitors. The writer has frequently heard the case of the three Jameses related by persons in different States, who never mistrusted that they were men of his own regiment. The boys are each well now, each walks with his artificial limb, and each is a worthy member of society.

General Grant, finding that his expectation of taking Petersburgh by surprise had failed, prepared for a systematic investment of the town. Accordingly, the Sixth and Second corps were directed to proceed to the left of the present line, so as to envelop the town, and also with the view of striking the Weldon railroad, and thus cutting off an important source of supplies for the rebel army.

On the 21st of May, the two corps marching in the rear of the rest of the army went into position on the left flank, the Second corps on the west of the Jerusalem plank road, and the Sixth to the left and rear of that corps, its line nearly at right angles with that of the Second corps. The cavalry divisions of Wilson and Kautz were, at the same time, ordered to proceed still farther to the left, and, cutting the Weldon road, continue the march across the country, until they should strike the Southside railroad, which they were directed to destroy.

On the morning of the 22d, General Birney, who, during the temporary absence of General Hancock, was in command of the Second corps, was directed to move his corps forward, so as to press upon the left flank of the enemy. This he proceeded to do, without giving notice of his intention to General Wright. The result of the movement was to leave a wide gap between the Second and Sixth corps.

To the great surprise of the Third division of our corps, which was just getting into position, the rebels advanced in strong force upon the flank and rear. A sharp skirmish occurred, in which that division and a part of the Second division lost some prisoners; but the principal loss fell upon the Second corps, for that corps, having thrown its left far in advance, was greatly exposed. The principal attack fell upon Barlow's division, which occupied the left. That division was driven in confusion upon the other divisions of the corps. The whole corps was forced back, but after some spirited fighting the rebels were forced back, carrying with them a battery belonging to the Second corps, and more than two thousand prisoners. From our own corps they had captured about six hundred men and a stand of colors.

The responsibility for this unfortunate surprise rests with the commander of the Second corps; for General Wright, being entirely ignorant of any design to advance that corps, had, of course, made no disposition to keep the line intact. The men of the Third division did all that men could do under the circumstances, and are entitled to much credit for the repulse which they gave the enemy.

From that day, except that at times the roar of artillery shook the earth for miles about, we remained quiet until the 29th of June. The light sandy soil soon became reduced to powder, and the continual passing of mules and army wagons raised huge clouds of dust, which completely enveloped the army. At sunset this cloud would settle down and become so dense that one could not see objects twenty yards from him. The heat was almost intolerable, yet the health of the men was better than usual for the summer months.

The surgeons had their hospitals neatly fitted up, and nurses and attendants took great pride in adorning the hospital tents with the boughs of the magnolia and other beautiful shrubs and flowers. The government and the agents of the Sanitary Commission supplied us liberally with lemons and vegetables, so, notwithstanding the intense heat, and the constant watchfulness of the men behind the earthworks, there was comparatively little illness.