Paper, 'Observations on the dip and variation of the magnetic needle, and on the intensity of the magnetic force; made during the late voyage in search of a north west passage' by Captain Edward Sabine Subject: Navigation / Magnetism Published in Philosophical Transactions as 'Observations on the dip and variation of the magnetic needle, and on the intensity of the magnetic force; made during the late voyage in search of a North West Passage'. Read 25 February 1819. [1819]