Map of Krakatoa showing the islands pre- and post- the 1883 eruption.

Figure 11 in the report of the Krakatoa Committee of the Royal Society, edited by G.J.Symons (London, Trubner & Co., 1888). The map is inscribed: 'Map of Krakatoa and the surrounding islands, from the Chart prepared immediately after the eruption. Later charts show the islands of Steers and Calmeyer reduced to sandbanks. The shaded areas show the form of the islands according to the old chart. Much of the discrepancy between the southern limit of the Krakatoa in the two maps is due to the imprecision of the old survey. Dotted lines show sand-banks and lines of breakers.