Page:Transactions of the Provincial Medical and Surgical Association, volume 4.djvu/251

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The barometer employed was that described at p. 16 of the preceding communication; and by using the same instrument at both stations, any correction for capillary depression is rendered unnecessary. In the following preliminary observations a. different barometer, carefully boiled, measured and adjusted, was used at the summit of the beacon, the bore of the tube being .150 in. in diameter, so that here the correction for capillarity must not be overlooked.

Mean of all—923 feet, the height of the Worcestershire Beacon above the Library at Great Malvern.