Four pedons of Brown Soils originating from material prior to the 1883 Krakatau eruption have been identified in Rakata, exposed or buried under the thick layer of pumiceous anh. Three of those pedons have been studied in terms of their physico-chemiopl proper ties, cand and clay mineralogy. The results indicate that the Brown Soils have been developed from basalto-andesitic volcanic motoria…