Description | Graphical representation of the horizontal force magnetometer readings (uncorrected), commencing at 3.24.30 p.m., Singapore mean time. With a second, unidentified line on the graph. Plotted against Singapore time [top] and Gottingen mean time [bottom].
Headed 'Curves of extraordinary Observations taken on 25th July 1843 Magnetic Observatory at Singapore'. Signed by C.M. Elliot. |