This Plate is based on the map, Bijlage, I., ' Kaart van den Oost- 

 Indischen Archipel/ subjoined to the recent work of Verbeek et Fennenia, 

 Description géologique de Java et Madoura. I consulted also Berg- 

 haus's Physikalischen Atlas, Gewässerkunde, No. X. Tectonic lines and 

 the zones of volcanoes of the Sangii-s, the Moluccas, and the Philippines 

 in the map are my own. 



