| Description | Daily meteorological readings at the Royal Society's apartments at Somerset House, London, England. Each printed sheet contains two sets of observations, from 9.00 a.m and 3.00 p.m. Both have basic readings of air pressure and temperature from an internal barometer with an attached thermometer, and an external thermometer. The morning readings also have highest and lowest points of a 'self-registering' [thermometer], dew-point, rain and wind. Below these, general remarks on weather and cloud conditions.
According to Francis Baily, the Society's barometer was fixed in a closet adjoining the Library in Somerset House from 1822. 'Description of a new barometer, recently fixed up in the apartments of the Royal Society', by Francis Baily, Proceedings of the Royal Society, v.4 (1837) pp.1-3. The 'Meteorological Journal', kept by the Assistant Secretary, was published in the Philosophical Transactions each year, usually in parts during the year. |