In his third page he says, " I wrote to General Washington 10th March 1785, that I intended applying both powers to a boat built after the model of the one he saw at Bath ; but the disadvantages before mentioned still remained and as I could gain truth only by successive experiments, incredible delays were produced -- and though my distresses were greatly increased thereby, &c." -- It is truly amazing that though he had long before this letter, been making progress in Steam engines, and gaining truth by successive experiments, and incredible delays, insomuch that at the time of his proposing to get cylinders cast at Governor Johnson's works in October 1785, he had the principal part of his work untouched ; I say it is amazing, that these incredible delays should all vanish as .n an instant, and that between the time of bin failing at Governor ■ v.hnson's works in Octooer or November 1785, and the first of December following, he should have completed his whole machi-

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pery, ready to be put on board. -- A Steam-engine is a complex piece of work, and his subsequent transactions show that he found it so ; for it has taken him from the summer of 1786 (when he removed his works from Frederick-town) to the winter of 1787 to make them ready for a fair experiment. No person therefore can be brought to believe, that his first machinery could have been conjuied together in little more than 30 days. -- No such thing happened -- 1 have already sufficient proof to the contrary, and have no doubt but a multitude of corroborating witnesses will voluntarily offer themselves, when this pamphlet gets down to Frederick-town and Shepherds town, where I shall take some pains to have it circulated.