Paper, observations of a halo surrounding the sun by unknown author Observations regarding a coloured halo surrounding the Sun from 9 in the morning until 2 in the afternoon in Rome. Includes barometer readings at various points on the same day. Subject: Meteorology Latin version published in Philosophical Transactions as 'Halo observations Romae anno MDCCXXXII. Die xi. Augusti à D. Did, de Revillas, Regali Societati communicavit Tho, Dereham Bart'. Written in Rome and addressed to Dr [Cromwell] Mortimer. Communicated by Thomas Dereham. Read to the Royal Society on 18 January 1733. Published in Philosophical Transactions as 'Halo observations Romae anno MDCCXXXII. Die xi. Augusti à D. Did, de Revillas, Regali Societati communicavit Tho, Dereham Bart' 11 August 1732