But, even while this expedition was working its way back to the station of the vessels on the Mississippi, Porter was starting another through a second chain of water-courses that he had discovered. This time he was so sure of getting into the rear of Vicksburg, that he took four of his big iron-clads, and two light mortar-boats built especially for work in the woods. Gen. Sherman, with a strong army-force, marched overland, keeping up with the gunboats. Admiral Porter, in his Memoirs, gives a graphic picture of this expedition.

Back of Vicksburg the country is low, and intersected in every direction by narrow, tortuous bayous, lined on either side by gloomy mora.s.ses or majestic forests. Into these little-known water-courses Porter boldly led his ponderous iron-clads; while Sherman, with a detachment of troops, advanced along the sh.o.r.e, keeping as near the flotilla as possible. Seldom have naval vessels been detailed upon so strange a service. For days they steamed on under the spreading branches of trees, that often spanned the bayous in a mighty arch overhead, shutting out all sunlight. For a time this navigation of placid, shady waterways was pleasant enough; but, as they penetrated farther into the interior, the jackies sighed for the blue waters of the ocean, or even for the turbid current of the Mississippi. The heavy foliage that gave so grateful a shade also harbored all sorts of animals; and c.o.o.ns, rats, mice, and wildcats, that had been driven to the trees for shelter during the prevailing high water, peered down upon the sailors, and often dropped sociably down upon the decks of the vessels gliding beneath.

At some portions of the voyage the flotilla seemed to be steaming through the primeval forest. The bayou was but a few feet wider than the gunboats, and its banks were lined by gnarled and knotted old veterans of the forest,--live oaks, sycamore, and tupelo gum trees that had stood in majestic dignity on the banks of the dark and sullen stream for centuries. Sometimes majestic vistas would open; broad avenues carpeted with velvet turf, and walled in by the ma.s.sive tree trunks, extending from the banks of the stream far back into the country. Again, the stately forests would be replaced by fields of waving corn or rice, with the tops of a row of negro cabins or the columned front of a planter's house showing in the distance. Then, as the flotilla steamed on, this fair prospect would disappear, and be replaced by noisome cypress brakes, hung thick with the funereal Spanish moss, and harboring beneath the black water many a noxious reptile.

So through the ever-changing scenery the gunboats moved along, making but little progress, but meeting with no serious obstacle, until one morning there appeared on a bit of high ground, some yards in advance of the leading gunboat, an army officer mounted on an old white horse.

It was Gen. Sherman, and his troops were in camp near by. He greeted the naval forces cheerily, and, rallying Porter on the amphibious service into which his gunboats had been forced, warned him that he would soon have not a smokestack standing, nor a boat left at the davits.

"So much the better," said the undaunted admiral. "All I want is an engine, guns, and a hull to float them. As to boats, they are very much in the way."

A short time only was spent in consultation, and then Sherman with his forces left the bayou and plunged into the interior, first warning Porter that he would have a hard time getting any farther, even if the enemy did not come down and surround him. But Porter was not the man to abandon the advance, so long as there was water enough to float his gunboats. Besides, he had gained some ideas regarding navigation in the forests, that enabled him to move his fleet forward with more celerity than at first. When a tree blocked the course of the iron-clads, they no longer stopped to clear it away by work with the axes; but, clapping on all steam, the powerful rams dashed at the woody obstruction, and with repeated blows soon knocked it out of the way.

Soon after leaving Sherman, Porter saw that the difficulties he had thus far met and conquered were as nothing to those which he had yet to encounter. The comparatively broad stream up which he had been steaming came to an end, and his further progress must be through Cypress Bayou, a ca.n.a.l just forty-six feet wide..[??-second period a smudge?] The broadest gunboat was forty-two feet wide, and to enter that narrow stream made retreat out of the question: there could be no turning round to fly. The levees rose on either side of the narrow ca.n.a.l high above the decks of the iron-clads, so that the cannon could not be sufficiently elevated to do effective work in case of an attack. But there were nine feet of water in the great ditch; and that was enough for Porter, who pressed boldly on.

The country into which the combined military and naval expedition was advancing was in truth the granary of Vicksburg. On all other sides of the beleaguered city, the Federal lines were drawn so closely that the wagons laden with farm produce could not hope to pa.s.s. But here, back of the city, and far from the camps of Grant's legions, the work of raising produce for the gallant people of Vicksburg was prosecuted with the most untiring vigor. The sight, then, of the advancing gunboats aroused the greatest consternation. From the deck of his vessel Porter could see the people striving to save their property from the advancing enemy. Great droves of cattle were being driven away far into the interior; negroes were skurrying in all directions, driving poultry and pigs to the safe concealment of the forest; wagons groaning under the weight of farm and garden produce could be seen disappearing in the distance. What the inhabitants could not save they destroyed, in order that it might not profit the invaders. A short distance from the mouth of the bayou "were six thousand bales of cotton piled up on opposite sides of the stream, ready to be taken aboard a steamer when the war should end. As the gunboats advanced slowly, making little headway against the two-knot current of the bayou, Porter saw two men, carrying lighted pine-knots, dash up to the cotton, and begin to set it afire. The admiral looked on in disgust.

"'What fools these mortals be!'" said he to an officer standing at his side; "but I suppose those men have a right to burn their own cotton, especially as we have no way of preventing them."

"I can send a howitzer sh.e.l.l at them, sir," said the officer, "and drive them away."

But to this Porter demurred, saying that he had no desire to kill the men, and that they might do as they liked with their own. Accordingly the officers quietly watched the vandals, until, after twenty minutes'

work, the cotton was blazing, and a dense ma.s.s of smoke cut off all vision ahead, and rose high in the air. Then Porter began to suspect that he had made a mistake. The difficulties of navigation in the bayou were great enough, without having smoke and fire added to them.

Yet to wait for the cotton to burn up might cause a serious delay. On the high bank of the bayou stood a negro begging the sailors to take him aboard.

"Hallo, there, Sambo!" sung out Porter, "how long will it take this cotton to burn up?"

"Two day, ma.s.sa," responded the contraband; "p'raps tree."

That ended the debate. "Ring the bell to go ahead fast," said the admiral to the pilot; and away went the flotilla at full speed, plunging into the smoke and fire. It was a hot experience for the sailors. The heavy iron-clads made but slow progress, and were scorched and blistered with the heat. The ports were all shut down, and the crews called to fire-quarters, buckets in hand. To remain on deck, was impossible. Porter and his captain made the trial, but had hardly entered the smoke when the scorching heat drove both into the shelter of an iron-covered deck-house. The pilot standing at the wheel seized a flag, and, wrapping it about his face and body, was able to stay at his post. As the flames grew hotter, the sailors below opened the main hatch, and, thrusting up a hose, deluged the deck with floods of water. So, without a man in sight, the huge iron ship moved along between the walls of flame. Suddenly came an enormous crash. The gunboat shivered, and for a moment stood still; then, gathering headway, moved on again, though with much ominous grating beneath her keel. Soon after she pa.s.sed out of the smoke and heat, and all hands rushed on deck for a whiff of the fresh, cool air. Their first thought was of the cause of the collision; and, looking eagerly astern, they saw a heavy bridge, about fifty feet of which had been demolished by the tremendous power of the ram. This gave Porter a hint as to the force he had at his command; and thereafter bridges were rammed as a matter of course whenever they impeded the progress of the iron-clads.

The astonishment of the people along the sh.o.r.e may well be imagined.

The great and formidable obstacles that stood in the path of the squadron were, as a rule, overcome by the exertion of the great powers of the steam-driven, iron-plated vessels; but at last there came a check, that, though it seemed at first insignificant, terminated the sylvan manoeuvres of the iron-clad navy. After running the gantlet of the burning cotton, b.u.t.ting down trees, and smashing through bridges, the column entered a stretch of smooth water that seemed to promise fair and un.o.bstructed sailing. But toward the end of this expanse of water a kind of green sc.u.m was evident, extending right across the bayou, from bank to bank. Porter's keen eye caught sight of this; and, turning to one of the negroes who had taken refuge on the gunboat, he asked what it was. "It's nuffin' but willows, sah," he replied. "When de water's out of de bayou, den we cuts de willows to make baskets with. You kin go troo dat like a eel."

Satisfied with this explanation, the admiral ordered the tug which led the column to go ahead. Under a full head of steam, the tug dashed into the willows, but began to slow up, until, after going about thirty yards, she stopped, unable to go forward or back.

Undaunted by this unexpected resistance, Porter cried out that the "Cincinnati" would push the tug along; and the heavy gunboat, withdrawing a short distance to gain headway, hurled herself forward, and dashed into the willows with a force that would have carried her through any bridge ever built. But the old fable of the lion bound down by the silken net was here re-enacted. The gunboat did not even reach the tug. The slender willow-shoots trailed along the sides, caught in the rough ends of the iron overhang, and held the vessel immovable. Abandoning the attempt to advance, the gunboat strove to back out, but to no avail. Then hooks were rigged over the side to break away the withes, and men slung in ropes alongside vigorously wielded sharp cutla.s.ses and saws; but still the willows retained their grip. Matters were now getting serious; and, to add to Porter's perplexity, reports came in that Confederate troops were coming down upon him. Then he began to lose confidence in his iron-clads, and wish right heartily for Sherman and his soldiers, of whose whereabouts he could gain no knowledge. The enemy did not leave him long in doubts as to their intention, and soon began a vigorous fire of sh.e.l.ls from the woods. Porter stopped that promptly by manning his mortars and firing a few sh.e.l.ls at a range measured by the sound of the enemy's cannon.

The immediate silence of the hostile batteries proved the accuracy of the admiral's calculations, and gave him time to devise means for escaping from his perilous position.

How to do it without aid from Sherman's troops, was a difficult question; and in his perplexity he exclaimed aloud, "Why don't Sherman come on? I'd give ten dollars to get a telegram to him." The admiral was standing at the moment on the bank of the bayou, near a group of negroes; and an athletic-looking contraband stepped forward, and, announcing himself as a "telegram-wire," offered to carry the note "to kingdum k.u.m for half a dollar." After sharply cross-questioning the volunteer, Porter wrote on a sc.r.a.p of paper, "DEAR SHERMAN,--Hurry up, for Heaven's sake. I never knew how helpless an iron-clad could be, steaming around through the woods without an army to back her."

"Where will you carry this?" asked Porter, handing the despatch to the negro.

[Ill.u.s.tration: Porter's Flotilla on the Red River.]

"In my calabash kiver, ma.s.sa," responded the messenger with a grin; and, stowing the paper away in his woolly hair, he darted away.

The telegram being thus despatched, Porter again turned his attention to the willows; and, a fortunate rise in the water having occurred, he was able to extricate his vessels and begin his retreat down the bayou. He was somewhat perplexed by the silence of the Confederates, from whom he had heard nothing since his mortars silenced their masked batteries. The conundrum was solved by the sound of wood-chopping in the forests ahead, and the discovery shortly after of two heavy logs lying athwart the bayou, and stopping the progress of the vessels. An hour's hard work with axe and saw removed this obstruction; and the tug, slipping through first, shot ahead to prevent any more tree-felling. The loud reports of her howitzer soon carried back to the fleet the news that she had come up with the enemy, and was disputing with them the right to the bayou.

The difficulties of the retreat were no less great than those of the advance, with the intermittent attacks of the enemy added. The work of removing heavy, soggy logs, half submerged beneath the black waters of the bayou, clearing away standing trees, and breaking up and removing Red-river rafts, wearied the sailors, and left them little spirit to meet the enemy's attacks. The faint sounds of wood-chopping in the distance told too well of the additional impediments yet in store for the adventurous mariners. Scouts sent out reported that the enemy had impressed great gangs of negroes, and were forcing them to do the work of felling the trees that were to hem in Uncle Sam's gunboats, for the benefit of the C.S.A. But the plans of the Confederates to this end were easily defeated. Porter had not only many willing arms at his command, but the powerful aid of steam. When the gunboats came to a tree lying across the bayou, a landing party went ash.o.r.e and fastened large pulleys to a tree on the bank. Then a rope was pa.s.sed through the block; and one end having been made fast to the fallen tree, the other was taken aboard a gunboat. The word was then given, "Back the iron-clad hard;" and the fallen monarch of the forest was soon dragged across the bayou and out of the way So expert did the jackies become in this work, that they were soon able to clear away the trees faster than the enemy could fell them. The tug then went ahead, and for a time put an end to further tree-chopping, and captured several of the negro axemen.

From the captured contrabands Porter learned that the attempt to cut off his retreat was directed by the military authorities at Vicksburg.

This was a startling revelation. He had thought that the Confederates were in entire ignorance of his movement; and now it turned out that the wily Pemberton had kept a sharp lookout on the marauding gunboats, and was shrewdly planning for their capture. While Porter was pondering over this new discovery, a party of scouts came in, bringing in four captured Confederates, two of whom were commissioned officers.

The commanding officer, a mere boy, was somewhat chagrined at being captured, but felt confident that his friends would recapture him shortly. Porter politely asked him to take a gla.s.s of wine and some supper.

"I don't care if I do," responded the youngster; "and I have the less compunction in taking it, as it belongs to us anyhow. In two hours you will be surrounded and bagged. You can't escape. How in the Devil's name you ever got here, is a wonder to me."

Porter smiled pleasantly, and, helping his guests lavishly, proceeded to question them on the numbers and position of the Confederate troops. He learned that a large body of troops had been sent out to surround the iron-clads, and were even then closing in upon the intruders. The danger was imminent, but Porter showed no trepidation.

"How far off are your troops?" he asked.

"About four miles. They will bag you at daylight," was the confident response.

"Well, gentlemen," said the admiral, "Gen. Sherman is now surrounding your forces with ten thousand men, and will capture them all before daylight." And so saying the admiral went on deck, leaving his captives lost in wonder; for the information carried to the Vicksburg authorities had made no mention of troops.

Though Porter had put on so bold a front before his captives, he really felt much anxiety for the fate of his iron-clads. He could hear nothing from Sherman, who might be thirty miles away for all he knew.

Accordingly he retraced his course for a few miles, to throw the enemy off the scent, and the next day began again his descent of the bayou, b.u.mping along stern foremost amid snags and standing trees. The enemy soon gave evidence that he was on the watch, and opened fire with his artillery from the rear. At this one gunboat steamed back and silenced the artillery for a time, after which she rejoined her fellows.

Sharp-shooters in the thickets along the levee then began to grow troublesome; and the whistle of the rifle-b.a.l.l.s, with an occasional _ping_ as one struck the smokestack, warned the sailors that the deck of a gunboat in a narrow ca.n.a.l was no safe place in time of war. The high levees on either side of the bayou made it impossible to use the guns properly: so Porter turned them into mortars, and, by using very small charges of powder, pitched sh.e.l.ls up into the air, dropping them into the bushes back of the levee. This somewhat checked the fire of the sharp-shooters, but the decks were still dangerous places to frequent. A rifle-ball struck Lieut. Wells in the head as he stood talking to Porter; and he fell, apparently dead, upon the deck. The admiral beckoned an officer to come and bear away the body; but the newcomer was also hit, and fell across the body of the first. Porter concluded that the locality was getting rather hot, and gladly stepped behind a heavy plate of sheet-iron, which an old quarter-master brought him with the remark, "There, sir, stand behind that. They've fired at you long enough."

From behind his shield, Porter looked out anxiously at the forces by which he was beleaguered. He could see clearly that the Confederates were increasing in numbers; and, when at last he saw a long gray column come sweeping out of the woods, his heart failed him, and for a moment he thought that the fate of his flotilla was sealed. But at that very moment deliverance was at hand. The Confederates were seen to fall into confusion, waver, and give way before a thin blue line,--the advance guard of Sherman's troops. The negro "telegram-wire" had proved faithful, and Sherman had come on to the rescue.

That ended the difficulties of the flotilla. The enemy, once brought face to face with Sherman's men, departed abruptly; and soon the doughty general, mounted on an old gray horse, came riding down to the edge of the bayou, for a word with Porter. Seeing the admiral on the deck of his gunboat, he shouted out, "Hallo! Porter, what did you get into such an ugly sc.r.a.pe for? So much for you navy fellows getting out of your element. Better send for the soldiers always. My boys will put you through. Here's your little n.i.g.g.e.r. He came through all right, and I started at once. Your gunboats are enough to scare the crows: they look as if you had got a terrible hammering."

Somewhat crestfallen, Porter remarked, that he "never knew what helpless things iron-clads could become when they got in a ditch, and had no soldiers about." As Sherman declined to come aboard, Porter went below to look after his two prisoners.

"Well, gentlemen," said he, as he entered the cabin, "you were right.

We are surrounded by troops."

The two Confederates were greatly exultant, but a.s.sured Porter that they would see that he was kindly treated when taken into Vicksburg.

"To Vicksburg!" said he with mock amazement. "Who said any thing of Vicksburg?"

"Why, of course you'll be taken there as a prisoner, now that our men have surrounded you."

"Oh, you are mistaken there!" responded Porter. "The troops by whom I am surrounded are Sherman's boys, six thousand strong." And at this news the chagrined captives subsided, and began to consider the prospects of a trip to the North, and incarceration in one of the military prisons.

Sherman's army soon came up in force, and went into camp along the road that skirted the levee. As night fell, the scene took on a wild and picturesque air. In the narrow bayou lay the gunboats, strung out in single file along a line of half a mile. They bore many signs of the hard knocks they had received in their excursion through the woods. Boats, davits, steam-pipes, and every thing breakable that rose above the level of the deck, had been swept away by the overhanging boughs, or dashed to pieces by falling trees. The smoke-stacks and wheel-houses were riddled by the bullets of the Confederate sharp-shooters. The decks were covered with rubbish of all kinds, and here and there was a fissure that told of the bursting of some Confederate sh.e.l.l. The paint was blistered, and peeling off, from the effects of the cotton-fire through which the fleet had dashed.

On the sh.o.r.e blazed the camp-fires of Sherman's troops; and about the huge flaming piles the weary soldiers threw themselves down to catch a moment's rest, while the company cooks prepared the evening meal. Many of the idle soldiers strolled down to the edge of the bayou, and, forming a line along the levee, began chaffing the sailors on the ludicrous failure of their attempt to perform naval evolutions in a swamp.

"What's gone with your boats, Jack?" sung out one tall fellow in cavalry garb. "Been in dry-dock for repairs?"

"How do you like playing mud-turtle?" said another. "Better stick to salt water after this."

"Don't go bush-whacking again, unless you have the soldiers with you.

You look as if your mothers didn't know you were out." And at this a yell of approval went up all along the line, while the badgered sailors growled and tried to make sharp retorts to the stinging ridicule of the landsmen.

So ended this memorable gunboat expedition. It is unparalleled in the history of warfare. The feats performed by the unwieldy iron-clads in the narrow bayous gained for them, from Lincoln, the t.i.tle of "web-footed" gunboats. They had traversed shallow and tortuous channels; they had cleared their path of trees, snags, and even bridges; they had run the gantlet of flaming cotton-bales and Confederate bullets. After meeting and overcoming so many obstacles, their final stoppage by a thicket of pitiful willow-shoots irritated the blue-jackets and their commander extremely. Porter had penetrated so far into the Yazoo country, that he could see how great damage could be inflicted upon the Confederates, if the expedition could but be carried out successfully. He had definite information to the effect, that, at Yazoo City, the Confederates had a thriving shipyard, at which they were pressing forward the construction of steam-rams with which to sweep the Mississippi. To reach that point and destroy the vessels, would have been a service thoroughly in accord with his tastes; but the willows held him back. However, he was able to console himself with the thought that the rams were not likely to do the Confederates any immediate service; for a truthful contraband, brought in by the Union scouts, informed the admiral that "dey has no bottom in, no sides to 'em, an' no top on to 'em, sah; an' dere injines is in Richmon'."

When the dangers encountered by the gunboats during this expedition are considered, the damage sustained seems surprisingly small. Had the Confederates acted promptly and vigorously, the intruders would never have escaped from the swamps into which their temerity had led them. A few torpedoes, judiciously planted in the muddy bed of the bayou, would have effectively prevented any farther advance. More than once the Confederates posted their artillery within effective range, and opened a rapid and well-directed fire upon the gunboats, but erred in using explosive sh.e.l.ls instead of solid shot. "They were evidently greenhorns," wrote Porter, exulting over his narrow escape, "and failed to understand that we were iron-clad, and did not mind _bursting_-sh.e.l.l. If they had used solid shot, they might have hurt us." The infantry forces of the enemy were ample to have given the marauding gunboats a vast deal of trouble, if the Confederate officers had been enterprising, and had seized upon the opportunities afforded them. Night after night the flotilla lay tied up in the centre of a narrow bayou, with the levees towering so high above the gunboats'

ports, that the cannon were useless. At such a time, a determined a.s.sault by a body of hostile infantry could hardly have been resisted.

Such an attack was the danger which Porter most feared throughout the expedition, and he nightly made preparations for a desperate resistance. The widest part of the bayou was chosen for the anchorage, in order that a strip of water at least four feet wide might separate the gunboats from the sh.o.r.e. The sides of the iron-clads were then greased, and the guns loaded with grape, and elevated as much as possible. Landing parties with howitzers were sent ash.o.r.e, and posted so as to enfilade any attacking force; scouts were sent out in all directions; and the crews of the gunboats slept at their quarters all night, ready for action at the first alarm. But it is doubtful whether even these elaborate precautions could have saved the flotilla, had the Confederates brought one regiment to the a.s.sault. However, the enemy let the golden moment pa.s.s; and, after suffering the agonies of suspense for several days, Porter at last saw his gunboats safely anch.o.r.ed by the side of Sherman's protecting regiments.