Java, had an eruption in 1772 which destroyed 40 villages. Galung Gung in 1822 destroyed 114 villages, and it is some measure of the violence of the Krakatoa explosion in 1883 that over 36,000 people perished. Off the west coast of the Philippines there is also a rapid deepening of the sea bottom, marking the eastern edge of the continental plateau, and here, too, there is a series of active and extinct volcanoes which stretches from Formosa to the Moluccas.

In the following table are collected the principal data available concerning 20 active and 29 extinct or dormant volcanic vents, with name, location, height, character of rock, and date of eruptions:

1 The queries indicate that the composition of the volcano is inferred from specimens collected near it but not on it.

2 Oebbeke. V. Drasche. Abella. Roth. Becker. Renard. Velain. 9 Uncertain.