Paper, 'Observations of the dipping made at London at the beginning of the year 1723' by George Graham A series of observations of the dipping of the magnetic needle in London. Also included are observations from experiments to show the vibrations of the dipping needle beginning with the arch of 10 degrees with the times in which 100 vibrations were performed. Subject: Magnetism Published in Philosophical Transactions as 'Observation of the dipping needle. made at London, in the beginning of the Year 1723'. Read to the Royal Society on 24 June 1725. [1723]