An injury to a paper boat is easily repaired by a patch of strong paper and a coating of shellac put on with a hot iron. As the paper boat is a novelty with many people, a sketch of its early history may prove interesting to the reader. Mr. George A. Waters, the son of the senior member of the firm of E. Waters & Sons, of Troy, New York, was invited some years since to a masquerade party. The boy repaired to a toy shop to purchase a counterfeit face; but, thinking the price (eight dollars) was more than he could afford for a single evening's sport, he borrowed the mask for a model, from which he produced a duplicate as perfect as was the original. While engaged upon his novel work, an idea impressed itself upon his ingenious brain. "Cannot," he queried, "a paper shell be made upon the wooden model of a boat? And will not a shell thus produced, after being treated to a coat of varnish, float as well, and be lighter than a wooden boat?" This was in March, 1867, while the youth was engaged in the manufacture of paper boxes. Having repaired a wooden shell-boat by covering the cracks with sheets of stout paper cemented to the wood, the result satisfied him; and he immediately applied his attention to the further development of his bright idea. Assisted by his father, Mr. Elisha Waters, the enterprise was commenced "by taking a wooden shell, thirteen inches wide and thirty feet long, as a mould, and covering the entire surface of its bottom and sides with small sheets of strong Manila paper, glued together, and superposed on each other, so that the joints of one layer were covered by the middle of the sheet immediately above, until a sheet of paper had been formed one-sixteenth of an inch in thickness. The fabric thus constructed, after being carefully dried, was removed from the mould and fitted up with a suitable frame, consisting of a lower keelson, two inwales, the bulkhead; in short, all the usual parts of the frame of a wooden shell, except the timbers, or ribs, of which none were used -- the extreme stiffness of the skin rendering them unnecessary. Its surface was then carefully waterproofed with suitable varnishes, and the work was completed. Trials proved that, rude as was this first attempt compared with the elegant craft now turned out from paper, it had marked merits, among which were, its remarkable stiffness, the symmetry of the hull with respect to its long axis, and the smoothness of the water-surface." A gentleman, who possesses excellent judgment and long experience in all that relates to paper boats, furnishes me with the following valuable information, which I feel sure will interest the reader.