Paper, 'On a cycle of eighteen years in the mean annual height of the barometer in the climate of London; and on a constant variation of the barometrical mean according to the moon's declination' by Luke Howard Subject: Meteorology / Geodesy Published in Philosophical Transactions as 'On a cycle of eighteen years in the mean annual height of the barometer in the climate of London, and on a constant variation of the barometrical mean according to the Moon's declination'. Received by the Royal Society on 4 February 1841. Read 11 March 1841. Abstract published in Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London [later Proceedings of the Royal Society of London], Volume 4, 1843. [1841]