Physical chart of the Pacific Ocean or Great Sea, Mare Pacifico. Showing the currents & temperature of the ocean, the trade routes &c. Founded on the observations which have been made from the time of Magalhaen to the Prussian navigators. With additions & corrections to 1855. By A.K. Johnston, F.R.S.E. Engraved by W. & A.K. Johnston. William Blackwood & Sons, Edinburgh & London. (1856)