Scientific men and amateurs all agreed in pronouncing Fulton's scheme impracticable; but he went on with his work, his boat attracting no less attention and exciting no less ridicule than the ark had received from the scoffers in the days of Noah. The steam-engine ordered from Boulton and Watt was received in the latter part of 1806; and in the following spring the boat was launched from the ship-yard of Charles Brown, on the East River. Fulton named her the "Clermont," after the country-seat of his friend and partner, Chancellor Livingston. She was one hundred and sixty tons burthen, one hundred and thirty feet long, eighteen feet wide, and seven feet deep. Her engine was made with a single cylinder, two feet in diameter, and of four feet stroke; and her boiler was twenty feet long, seven feet deep, and eight feet broad. The diameter of the paddle-wheels was fifteen feet, the boards four feet long, and dipping two feet in the water. The boat was completed about the last of August, and she was moved by her machinery from the East River into the Hudson, and over to the Jersey shore. This trial, brief as it was, satisfied Fulton of its success, and he announced that in a few days the steamer would sail from New York for Albany. A few friends, including several scientific men and mechanics, were invited to take passage in the boat, to witness her performance; and they accepted the invitation with a general conviction that they were to do but little more than witness another failure. Monday, September 10, 1807, came at length, and a vast crowd assembled along the shore of the North River to witness the starting. As the hour for sailing drew near, the crowd increased, and jokes were passed on all sides at the expense of the inventor, who paid little attention to them, however, but busied himself in making a final and close inspection of the machinery. Says Fulton, "The morning I left New York, there were not, perhaps, thirty persons in the city who believed that the boat would ever move one mile per hour, or be of the least utility; and while we were putting off from the wharf, which was crowded with spectators, I heard a number of sarcastic remarks."