ILLUSTRATIONS 



Plate 1 



Map of the Malaysian region, adapted in large part from Molengraaff, 

 showing the Asiatic and Australian continental shelves, delimited 

 by the 200-meter line, the deeps characteristic of eastern Malay- 

 sia, and the dipterocarp distribution in Malaysia; western Malay- 

 sia, with the most numerous species; eastern Malaysia, with few 

 species; and the Philippines, stippled, with many species. 

 Plate 2 



Outline map of the unstable area between the Sunda Islands and Australia 

 and New Guinea, showing Wallace's Line, as originally placed 

 and as we believe it should be modified, and Weber's " 



Plate 5 

 vemicifluiis Blanco in Bataan Province, Luzon, 

 ing trees all removed. The crown form of this large t 

 well indicated. 



Plate 7 

 Interior of a dipterocarp forest in Masbate. 



Plate 8 

 Fig. 1. Interior of a dipterocarp forest in Bataan Province, Luzon. 1 

 tation undisturbed. 

 2. Dipterocarp forest on Mount Maquiling, Luzon. All small 

 and undergrowth removed. 



