| Description | Tables of magnetic declination and magnetic intensity, twelve observations per hour for each, made during twenty-four hour periods at the Brera Observatory in Milan on 18-19 January 1843 [pp.1-2]; and 24-25 February 1843 [pp5-6].
Both sets of observations were enclosed in the form of a letter communicated to the Royal Society by Francesco Carlini and endorsed as received on 9 March 1843, by Samuel Hunter Christie. Numbered 370 and 371. With lists of observers and participants, both signed by Robert Stambucchi and dated 20 January 1843 and 1 May 1843.
Noted as 'Variations de la déclinaison et intensité horizontale magnétiques observées à Milan pendant vingt-quatre heures consécutives le 18 et 19 Janvier, et le 20 et 25 Fevrier 1843', by C. Carlini, Abstracts of papers printed in the Philosophical Transactions of the Royal Society of London, v.4 (1843), p.457. |