Noises, far different from the clash of savage arms, are in the air to-night. Far above our heads a great iron bridge crosses the Ohio, some of its piers resting on the island,--a busy combination thoroughfare for steam and electric railways, for pedestrians and for vehicles, plying between New Albany and Portland. The whirr of the trolley, the scream and rumble of locomotives, the rattle of wagons; and just above the island head, the burly roar of steamboats signaling the locks,--these are the sounds which are prevalent. Through all this hubbub, electric lamps are flashing, and just now a steamer's search-light swept our island shore, lingering for a moment upon the little camp, doubtless while the pilot satisfied his curiosity. Let us hope that savage warriors never o' nights walk the earth above their graves; for such scenes as this might well cause those whose bones lie here to doubt their senses. * * * * * Near Brandenburg, Ky., Wednesday, 30th.--We stopped at New Albany, Ind. (603 miles), this morning, to stock the larder and to forward our shore-clothes by express to Cairo. It is a neat and busy manufacturing town, with an excellent public market. A gala aspect was prevalent, for it is Memorial Day; the shops and principal buildings were gay with bunting, and men in Grand Army uniforms stood in knots at the street corners. The broad, fertile plain on both sides of the river, upon which Louisville and New Albany are the principal towns, extends for eight or nine miles below the rapids. The first hills to approach the stream are those in Indiana. Salt River, some ten or twelve rods wide, enters from the south twenty-one miles below New Albany, between uninteresting high clay banks, with the lazy-looking little village of West Point, Ky., occupying a small rise of ground just below the mouth. The Kentucky hills come close to the bank, a mile or two farther down, and then the familiar characteristics of the reaches above Louisville are resumed--hills and bottoms, sparsely settled with ragged farmsteads, regularly alternating. At five o'clock we put in at a rocky ledge on the Indiana side, a mile-and-a-half above Brandenburg. Behind us rises a precipitous hill, tree-clad to the summit. The Doctor found up there a new phlox and a pretty pink stone-crop, to add to our herbarium, while here as elsewhere the bignonia grows profusely in every crevice of the rock. At dark, two ragged and ill-smelling young shanty-boat men, who are moored hard by, came up to see us, and by our camp-fire to whittle chips and drone about hard times. But at last we tired of their idle gossip, which had in it no element of the picturesque, and got rid of them by hinting our desire to turn in.