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TWO:In electricity great strides were made. Between the years 1705 and 1711 Francis Hawksbee published in the Transactions of the Royal Society several experiments, in which he had, for the first time, discovered the production of the electric spark by friction, and electrical attraction and repulsion. In 1720 Stephen Gray, a pensioner of the Charterhouse, published the result of his experiments on this subject, with a list of the substances which showed electricity under friction; and in 1732 he discovered the conducting property of non-electrical bodies. Before 1739, Dufray, keeper of the King's Garden at Paris, discovered the repellent power of two similarly-electrified bodies, and the attraction of these positively and negatively electrified��or, as he termed it, possessing the vitreous and the resinous electricity. Cuneus and Lallemand discovered the mode of accumulating the electric fluid in what was called the Leyden jar in 1745. This discovery gave a new impetus to inquiry, and Nollet, in France, and Watson, in England, conceived the hypothesis of the jar being overcharged on one side and undercharged on the other. This growing perception of the positive and negative conditions of the electric fluid received confirmation from the experiments of Benjamin Franklin, in America. Franklin soon improved the Leyden jar into an electrical battery; and, in 1752, he proved the identity of electricity and lightning by his grand experiment of the kite. On this he recommended lightning conductors, which, however, were not used in England till ten years afterwards.The next month Pitt despatched a smaller fleet and force to destroy the port of Cherbourg, which the French had constructed under Cardinal Fleury, and, as they stated by an inscription, "for all eternity." This time the command was given to General Bligh. Howe was admiral, and on board with him went Prince Edward, afterwards Duke of York. On the 8th of August the troops were landed at Cherbourg, which was[131] deserted by the garrison, and they destroyed the forts and harbour, demolished a hundred and seventy pieces of iron cannon, and carried off twenty-two fine brass ones. After re-embarking and returning to Portsmouth, Bligh was ordered to pay another visit to St. Malo, but still found it too strong for him; yet he landed his men in the bay of St. Lunaire, about two leagues westward of St. Malo; and the weather immediately driving Howe to sea, the army was marched overland to St. Cast, some leagues off. The soldiers were allowed to rove about and plunder, till Bligh heard that the Duke of Aiguillon was advancing against them at the head of a strong force. Bligh then, but in no hurry, marched for the port of St. Cast, followed by Aiguillon, who waited till he had embarked all but one thousand five hundred men, when he fell upon them, and slaughtered a thousand of them in a hollow way amongst the rocks leading down to the shore.

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