On the 13th of April, the Confederates sent up a balloon, the first they had employed, at which Lowe was infinitely amused. He said that it had neither shape nor buoyancy, and predicted that it would burst or fall apart after a week. It certainly occurred that, after a few fitful appearances, the stranger was seen no more, till, on the 28th of June, it floated, like a thing of omen, over the spires of Richmond. At that time the Federals were in full retreat, and all the acres were covered with their dead.

On the 11th of April, at five o'clock, an event at once amusing and thrilling occurred at our quarters. The commander-in-chief had appointed his personal and confidential friend, General Fitz John Porter, to conduct the siege of Yorktown. Porter was a polite, soldierly gentleman, and a native of New Hampshire, who had been in the regular army since early manhood. He fought gallantly in the Mexican war, being thrice promoted and once seriously wounded, and he was now forty years of age,—handsome, enthusiastic, ambitious, and popular. He made frequent ascensions with Lowe, and learned to go aloft alone. One day he ascended thrice, and finally seemed as cosily at home in the firmament as upon the solid earth. It is needless to say that he grew careless, and on this particular morning leaped into the car and demanded the cables to be let out with all speed. I saw with some surprise that the flurried assistants were sending up the great straining canvas with a single rope attached. The enormous bag was only partially inflated, and the loose folds opened and shut with a crack like that of a musket. Noisily, fitfully, the yellow mass rose into the sky, the basket rocking like a leather in the zephyr; and just as I turned aside to speak to a comrade, a sound came from overhead, like the explosion of a shell, and something striking me across the face laid me flat upon the ground.

Half blind and stunned, I staggered to my feet, but the air seemed full of cries and curses. Opening my eyes ruefully, I saw all faces turned upwards, and when I looked above,—the balloon was adrift.

The treacherous cable, rotted with vitriol, had snapped in twain; one fragment had been the cause of my downfall, and the other trailed, like a great entrail, from the receding car, where Fitz John Porter was bounding upward upon a Pegasus that he could neither check nor direct.

The whole army was agitated by the unwonted occurrence. From battery No. 1, on the brink of the York, to the mouth of Warwick river, every soldier and officer was absorbed. Far within the Confederate lines the confusion extended. We heard the enemy's alarm-guns, and directly the signal flags were waving up and down our front.

The General appeared directly over the edge of the car. He was tossing his hands frightenedly, and shouting something that we could not comprehend.

"O—pen—the—valve!" called Lowe, in his shrill tones; "climb—to—the—netting—and—reach—the—valve—rope."

"The valve!—the valve!" repeated a multitude of tongues, and all gazed with thrilling interest at the retreating hulk that still kept straight upward, swerving neither to the east nor the west.

It was a weird spectacle,—that frail, fading oval, gliding against the sky, floating in the serene azure, the little vessel swinging silently beneath, and a hundred thousand martial men watching the loss of their brother in arms, but powerless to relieve or recover him. Had Fitz John Porter been drifting down the rapids of Niagara, he could not have been so far from human assistance. But we saw him directly, no bigger than a child's toy, clambering up the netting and reaching for the cord.

"He can't do it," muttered a man beside me; "the wind blows the valve-rope to and fro, and only a spry, cool-headed fellow can catch it."