Plate, 'Errors in the Alexander's compass Baffins Bay' by unknown artist Figure 2 showing a diagram of the error seen in the compass on HMS Alexander in Baffins Bay [Baffin Bay, Greenland]. Subject: Navigation / Magnetism Published in Philosophical Transactions as 'On irregularities observed in the direction of the compass needles of H. M. S. Isabella and Alexander, in their late voyage of discovery, and caused by the attraction of the iron contained in the ships'. Read 18 February 1819. [1819]