hapless flat-boat, resting midships on the dam, the forward end in the air and the stern taking in the turbid Sangamon water. Nobody knew what to do with the disaster except "the bow-oar," who is described as a gigantic youth "with his trousers rolled up some five feet," who was wading about the boat and rigging up some undescribed contrivance by which the cargo was unloaded, the boat tilted and the water let out by boring a hole through the bottom, and everything brought safely to moorings below the dam. This exploit gained for young Lincoln the enthusiastic admiration of his employer, and turned his own mind in the direction of an invention which he afterwards patented "for lifting vessels over shoals." The model on which he obtained this patent--a little boat whittled by his own hand in 1849, after he had become prominent as a lawyer and politician--is still shown to visitors at the Department of the Interior. We have never learned that it has served any other purpose. [Illustration: MODEL OF LINCOLN'S INVENTION, IN THE PATENT OFFICE, WASHINGTON.] [Illustration: REDUCED FAC-SIMILE OF DRAWINGS IN THE PATENT OFFICE.] [Sidenote: Lamon, p. 83.] They made a quick trip down the Sangamon, the Illinois, and the Mississippi rivers. Although it was but a repetition in great part of the trip young Lincoln had made with Gentry, it evidently created a far deeper impression on his mind than the former one. The simple and honest words of John Hanks leave no doubt of this. At New Orleans, he said, they saw for the first time "negroes chained, maltreated, whipped, and scourged. Lincoln saw it; his heart bled; said nothing much, was silent, looked bad. I can say, knowing it, that it was on this trip that he formed his opinion of slavery. It run its iron in him then and there, May, 1831. I have heard him say so often." The sight of men in chains was intolerable to him. Ten years after this he made another journey by water with his friend Joshua Speed, of Kentucky. Writing to Speed about it after the lapse of fourteen years, he says: "In 1841 you and I had together a tedious low-water trip on a steamboat from Louisville to St. Louis. You may remember, as I well do, that from Louisville to the mouth of the Ohio there were on board ten or a dozen slaves shackled together with irons. That sight was a continual torment to me, and I see something like it every time I touch the Ohio or any other slave border. It is not fair for you to assume that I have no interest in a thing which has, and continually exercises, the power of making me miserable." There have been several ingenious attempts to show the origin and occasion of Mr. Lincoln's antislavery convictions. They seem to us an idle waste of labor. These sentiments came with the first awakening of his mind and conscience, and were roused into active life and energy by the sight of fellow-creatures in chains on an Ohio River steamboat, and on the wharf at New Orleans.