"The design of this invention is suggestive of one phase of Abraham Lincoln's early life, when he went up and down the Mississippi as a flat-boatman, and became familiar with some of the dangers and inconveniences attending the navigation of the Western rivers. It is an attempt to make it an easy matter to transport vessels over shoals and snags, and sawyers. The main idea is that of an apparatus resembling a noiseless bellows, placed on each side of the hull of the craft, just below the water-line, and worked by an odd but not complicated system of ropes, valves, and pulleys. When the keel of the vessel grates against the sand or obstruction, these bellows are to be filled with air; and, thus buoyed up, the ship is expected to float lightly and gayly over the shoal, which would otherwise have proved a serious interruption to her voyage. "The model, which is about eighteen or twenty inches long, and has the air of having been whittled with a knife out of a shingle and a cigar-box, is built without any elaboration or ornament, or any extra apparatus beyond that necessary to show the operation of buoying the steamer over the obstructions. Herein it differs from very many of the models which share with it the shelter of the immense halls of the Patent Office, and which are fashioned with wonderful nicety and exquisite finish, as if much of the labor and thought and affection of a lifetime had been devoted to their construction. This is a model of a different kind; carved as one might imagine a retired rail-splitter would whittle, strongly, but not smoothly, and evidently made with a view solely to convey, by the simplest possible means, to the minds of the patent authorities, an idea of the purpose and plan of the simple invention. The label on the steamer's deck informs us that the patent was obtained; but we do not learn that the navigation of the Western rivers was revolutionized by this quaint conception. The modest little model has reposed here sixteen years; and, since it found its resting-place here on the shelf, the shrewd inventor has found it his task to guide the Ship of State over shoals more perilous, and obstructions more obstinate, than any prophet dreamed of when Abraham Lincoln wrote his bold autograph on the prow of this miniature steamer."-- Correspondent Boston Advertiser.