Plate IV 





Photo. A. Ernst. 



Fig. 3. Drift-zone on the south-east coast of Krakatau. 



Strand-forest in the background (p. 27). 



Photo. A. Ernst. 



Fig. 4. Level beacli between the fractured rock-face and the promontory of 



Zwarte Hoek. 



In the foreground the long creeping shoots of Ipomaea Pes-caprae 

 and Vigna lutea (p. 34). 



