Vindar is, moreover, a projector of a very bold character; and not long ago petitioned the commanding general of an army, suddenly raised to repel an incursion of one of their neighbours, to march his troops into Goolo-Tongtoia, for the purpose of digging a canal from one of their petroleum lakes into Morosofia, and conducting it, by smaller streams, over that country, for the purpose of warming it during their long cool nights. He has, too, a large grist and saw mill, which are put in motion by the explosion of gunpowder. This is conveyed, by a sufficiently ingenious machine, in very small portions, to the bottom of an upright cylinder, which is immediately shut perfectly close. A flint and steel are at the same time made to strike directly over it, and to ignite the powder. The air that is thus generated, forces up a piston through a cylinder, which piston, striking the arm of a wheel, puts it in motion, and with it the machinery of the mills. A complete revolution of the wheel again prepares the cylinder for a fresh supply of gunpowder, which is set on fire, and produces the same effect as before. He told me he had been fifteen years perfecting this great work, in which time it had been twice blown up by accidents, arising from the carelessness or mismanagement of the workmen; but that he now expected it would repay him for the time and money he had expended. He had once, he said, intended to use the expansive force of congelation for his moving power; but he found, after making a full and accurate calculation, that the labourers required to keep the machine supplied with ice, consumed something more than twice as much corn as the mill would grind in the same time. He then was about to move it to a fine stream of water in the neighbourhood, which, by being dammed up, so as to form a large pond, would afford him a convenient and inexhaustible supply of ice. But the millwright, after the dam was completed, having artfully obtained his permission to use the waste water, and fraudulently erected there a common water-mill, which soon obtained all the neighbouring custom, he had sold out that property, and resorted to the agency of gunpowder, which is quite as philosophical a process as that of congelation, and much less expensive. In answer to an inquiry of the Brahmin's, he admitted, that though he had been able, by the force of congelation, to burst metallic tubes several inches thick, he had never succeeded in making it put the lightest machinery into a continued motion.