CONTENTS 



Introduction 



PAGES 



14 



I. Results of the visits of 1886 and 1897 58 



II. The Expedition of April 2427, 1906, to the Sunda Strait 



region and to Krakatau 8 37 



1. Vegetation and Flora of the Coral Island of Edam . 9 15 



2. On the beach at Vlakke Hoek (Sumatra) . . . 15 18 



3. In the Sunda Strait; winds and ocean-currents . . 19 23 



4. On the south-west coast of Java ; Java's First Point . 23 26 



5. On Krakatau and Verlaten Islands .... 26 37 



III. The present composition of the Flora of Krakatau . . . 3748 



IV. Biological conditions on Krakatau 48 53 



V. The relative importance of the different agents of plant-dispersal 



in the colonisation of the Krakatau Islands . . . 53 68 



1. Ocean-currents 54 53 



2. Seed-dispersal by birds 58 60 



3. Dispersal of fruits and seeds by wind .... 60 66 



4. Part played by the several agents of dispersal in the 



development of the present Flora of Krakatau . 66 68 



VI. Succession of plant-associations and the future character of 



the vegetation of Krakatau 68 72 



Bibliography 73 74 



