**E.170,1 *3961.2 Great Britain. Colonial magnetic observatories,
Observations on deys of unusual magnetic disturbance, made at the British colonial magnetic observa- tories under the deprtments of the Ordnance and Admiralty.
Printed under the superintendence of Edwerd Sabine, Vol. 1, part l, 2.
London: Her Majesty's Stationery office, 1843, 51.
lv. in2, 4°.
-Megnetic observations.