[Illustration: Fulton's First Experiment with Paddle-wheels.] It was now determined to build an experimental boat, which was completed in the spring of 1803; but when Fulton was on the point of making an experiment with her, an accident happened to the boat, the woodwork not having been framed strongly enough to bear the weight of the machinery and the agitation of the river. The accident did the machinery very little injury; but they were obliged to build the boat almost entirely anew. She was completed in July; her length was sixty-six feet and she was eight feet wide. Early in August, Fulton addressed a letter to the French National Institute, inviting the members to witness a trial of his boat, which was made before the members, and in the presence of a great multitude of Parisians. The experiment was entirely satisfactory to Fulton, though the boat did not move altogether with as much speed as he expected. But he imputed her moving so slowly to the extremely defective machinery, and to imperfections which were to be expected in the first experiment with so complicated a machine; the defects were such as might be easily remedied. Such entire confidence did he acquire from this experiment that immediately afterward he wrote to Messrs. Boulton & Watt, of Birmingham, England, ordering certain parts of a steam-engine to be made for him, and sent to America. He did not disclose to them for what purpose the engine was intended, but his directions were such as would produce the parts of an engine that might be put together within a compass suited for a boat. Mr. Livingston had written to his friends in this country, and through their assistance an act was passed by the Legislature of the State of New York, on April 5, 1803, by which the rights and exclusive privileges of navigating all the waters of that State, by vessels propelled by fire or steam, granted to Livingston by the Act of 1798, as already mentioned, were extended to Livingston and Fulton, for the term of twenty years from the date of the new act. By this law the time of producing proof of the practicability of propelling by steam a boat of twenty tons capacity, at the rate of four miles an hour, with and against the ordinary current of the Hudson, was extended two years, and by a subsequent law, the time was extended to 1807. Very soon after Fulton's arrival in New York he began building his first American boat. While she was constructing, he found that her cost would greatly exceed his calculations. He endeavored to lessen the pressure on his own finances by offering one-third of the rights for a proportionate contribution to the expense. It was generally known that he made this offer, but no one was then willing to afford aid to his enterprise.