Early Science at Oxford

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    February 1, 1683–4. Mr. Desmasters gave us an account of some experiments lately made by him, concerning ye expansion of Water frozen; he observed, that a cylindricall tube of ¼ an inch diameter, being filled with water, to ye height of 2 inches, and set to freeze, in a mixture of snow, and salt; ye water, when perfectly frozen, appeared 5 16 of an Inch above ye marke it stood at before ye freezirig began. Another cylindricall tube of almost an inch diameter, being filled with water to ye height of 6 inches, and set to freeze as before; ye water in freezing rose 7 8 of an inch; he observ'd farther, that when ye water thus set in snow and salt, began to freeze, a great number of small bubbles rose continually from ye bottom for some time. Mr. Ballard has observed of late, that half a pint of water frozen, lost Jij—3ij—grviij of ye weight it was of, before ye freezing; this experiment he tried a 2d time; ye success was much ye same, as at ye first. It was then queried, whether water, out of which ye air is pumpt, will rise in ye middle in the time of its freezing? and whether boiled water rises in freezing? Dr. Plot, and Mr. Ballard, undertook to trye these experiments.

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