In London, lanterns were first used in 1688, and those inhabitants whose houses fronted the streets were ordered to hang out their lanterns and keep them burning from 6 to 11 o'clock at night; the number of lanterns thus used within the boundaries of the City of London was 5,000. Without the City, inclusive of the suburbs, the probability is that the number was 15,000. In 1874, another act was passed for regulating the lighting of the City still further. Since the lighting of the streets, alleys, courts, etc., of our Metropolis with gas have come many other sanitary and social improvements, and it is not unlikely that under a wise Providence we owe to this invention as much security from the nightly depredations of burglars as much so as from the vigilance of the police. The existence and inflammability of coal-gas has been known in England for two centuries. In the year 1659, Thomas Shirley correctly attributed the exhalations from the "burning well" at Wigan, in Lancashire, to the coal-beds which lie under that part of the country; and soon after, Dr. Clayton, influenced by Shirley, actually made coal-gas, and detailed the results of his labours in a letter to the Hon. Robert Boyle, who died in 1691. About a century later, 1753, Sir James Lowther communicated to the Royal Society a notice of a spontaneous evolution of gas at a colliery belonging to him at Whitehaven. Bishop Watson made many experiments on coal-gas, which he details in his Chemical Essays. Mr. R. Taylor, on the Coal-fields of China, says, "The Chinese artificially produce illuminating gas from bitumen coal we are certain. But it is a fact that spontaneous jets of gas derived from boring into coal-beds have for centuries been burning, and turned to that and other economical purposes. If the Chinese are not gas manufacturers, they are nevertheless gas consumers and employers on a large scale, and have evidently been so ages before the knowledge of its application was acquired by Europeans." In 1792, Mr. Murdoch, an engineer at Redruth in Cornwall, erected a little gasometer with apparatus which produced gas sufficient to supply his own house and offices, and in 1797, he erected a similar apparatus in Ayrshire. In the following year, he was engaged to put up a gas works at the Manufactory of Bolton and Watts, at Soho, Birmingham,--this was the first application of gas in a large way. Except among a few scientific men, the manufacture of gas excited but little curiosity until the year 1802, when the front of the great Soho Manufactory was brilliantly illuminated with gas on the occasion of the public rejoicings at the Peace. In 1801, M. Le Bon, at Paris, succeeded in lighting up his own house and gardens with gas from wood and coal, and had it in contemplation to light up the City of Paris.