The advent of steam navigation came early in the nineteenth century, though interesting steps in this direction were taken earlier. No sooner was the steam-engine developed than men began to speculate on it as a moving power on sea and land. Early among these were several Americans, Oliver Evans, one of the first to project steam railway travel, and James Rumsey and John Fitch, steamboat inventors of early date. There were several experimenters in Europe also, but the first to produce a practical steamboat was Robert Fulton, a native of Pennsylvania, whose successful boat; the Clermont, made its maiden trip up the Hudson in 1807. A crude affair was the Clermont, with a top speed of about seven miles an hour; but it was the dwarf from which the giant steamers of to-day have grown. Boats of this type quickly made their way over the American rivers and before 1820 regular lines of steamboats were running between England and Ireland. In 1817 James Watt, the inventor of the practical steam-engine, crossed in a steamer from England to Belgium. But these short voyages were far surpassed by an American enterprise, that of the first ocean steamship, the Savannah, which crossed the Atlantic from Savannah to Liverpool in 1819. Twelve years passed before this enterprise was repeated, the next steam voyage being in 1831, when the Royal William crossed from Quebec to England. She used coal for fuel, having utilized her entire hold to store enough for the voyage. The Savannah had burned pitch-pine under her engines, for in America wood was long used as fuel for steam-making purposes. As regards this matter, the problem of fuel was of leading importance, and it was seriously questioned if a ship could be built to cross the Atlantic depending solely upon steam power. Steam-engines in those days were not very economical, needing four or five times as much fuel for the same power as the engines of recent date. It was not until 1838 that the problem was solved. On April 23d of that year a most significant event took place. Two steamships dropped anchor in the harbor of New York, the Sirius and the Great Western. Both of these had made the entire voyage under steam, the Sirius, in eighteen and a half and the Great Western in fourteen and a half days, measuring from Queenstown. The Sirius had taken on board 450 tons of coal, but all this was burned by the time Sandy Hook was reached, and she had to burn her spare spars and forty-three barrels of rosin to make her way up the bay. The Great Western, on the contrary, had coal to spare.