Magnetic observations, *#E .170.1=*3961,2 Great Britain. Colonial magnetic observatories. Observations on days of unusual magnetic disturbance, made at the British colonial magnetic observatories under the departments of the Ordnance and Admiralty, Printed under the superin-= tendence of Edward Sabine. Vol. 1, part 1, 2. London: Her Majesty's Stationery office. 1843, 51,
lve in 2. 4°, ee