Description | Hourly meteorological observations made at the Royal Society's apartments at Somerset House, London, at the June (Summer) solstice. Columns for: hours of observation; barometer flint glass; barometer crown glass; attached thermometer; external thermometer; old standard barometer; attached thermometer; difference of wet and dry bulb thermometer; dew point; rain in inches; wind; with general remarks.
Headed: 'Meteorological Observations made at the Apartments of the Royal Society, Somerset House, for Twenty-five successive hours. Commencing 6. A.M. of the 22nd June 1840: and ending 6. A.M. of the following day - Greeenwich mean time. By Mr. J.D. Roberton, Assistant Secretary, Royal Society'. |