Unpublished paper, 'Explanation of the construction, positions, comparisons, and times of observation, of the meteorological instruments at the Royal Observatory Greenwich, with which the observations have been made that are contained in the sheets of meteorological observations (from 1 and 2 for each month from November 1840 to July 1841, both included)' by G B [George Biddell] Airy Airy provides details on the barometers, thermometers, radiators, hygrometers, and rain gauges used at the Royal Observatory Greenwich [London]. Marked on back as 'Archives 12 May 1842 S H C [Samuel Hunter Christie]'. Subject: Meteorology Received 26 February 1841. Read 25 November 1841. Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 4 of Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society] as 'Explanation of the construction, positions, comparisons, and times of observation, of the meteorological instruments at the Royal Observatory, Greenwich, with which the observations have been made that are contained in the sheets of meteorological observations, forms 1 and 2, for each month from 1840 November to 1841 July, both inclusive, sent to the Royal Society in 1841, October 26'. October 1841