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>VI. Before the close of the meeting, an explanation was given by the Astronomer Royal, Mr. Airy, of the principle of an escapement recently invented by him, and intended to be applied to a clock made by Mr. Dent for the Observatory of Pulkowa
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VI. Before the close of the meeting, an explanation was given by the Astronomer Royal, Mr. Airy, of the principle of an escapement recently invented by him, and intended to be applied to a clock made by Mr. Dent for the Observatory of Pulkowa