LIST OF ILLUSTRATIONS 



FIG. 



1. View on Kerguelen Island ...... 



2. Mangrove-swamp near Goa .... 



3. Vertical Zonation . . 



4. Palm-tree drifting in the open sea . . 



5. Vegetation-zones of latitude and altitude 



6. Merope, a Composite of the Higher Andes 



7. Salix polaris Wahl., the Dwarf Arctic Willow 



8. Rheum nobile Hook. nl. ...... 



9. Epiphytic Orchid (Cattleya) in Brazil .... 



10. Forest of Eucalyptus in West Australia 



11. Grass- trees (Xanthorrhea), Cycads, and Ferns in West 



Australia ........ 



12. Open reed swamp association ..... 



13. Oak-birch heath association . . . . 



14. Heath association invaded by Pinus sylvestris L. . 



15. Dry Oak-wood on sandy loam ..... 



1 6. Interior of Beech- wood on chalk ..... 



Vlll 



