TWO:De Crillon, seeing that his bombardment from shore produced little effect, determined to make the attack also from the sea. Amongst the multiplicity of inventions which the offered rewards had produced, the Chevalier D'Arcon, a French engineer, had produced a scheme which excited the most confident expectations. The plan was to construct ten monster floating batteries of such capacity that they should carry the heaviest artillery, and so made and defended that they could be neither sunk nor burnt. Loud was the clangour of hammer and saw, and, as the secret could not be long preserved, equally busy was the garrison within, preparing furnaces, and laying ready huge piles of balls, to be discharged red-hot at these machines as soon as they arrived. To constitute the intended batteries, ten large ships of from six hundred to one thousand four hundred tons burden were cut down, and made bombproof on the top. They were to be prevented from sinking by the enormous thickness of the timber in their bottoms, and their sides, which were to be six or seven feet thick, bolted, and covered with raw hides. They were to be rendered more buoyant by thicknesses of cork, and the interstices were to be filled with wet sand to prevent combustion. There were to be plentiful supplies, by means of pumps, pipes, and cisterns, of water, everywhere, to put out fire, for they seem to have been aware of the burning balls that were being prepared for them.
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