TIMOR ISLAND; ITS SUPPOSED VOLCANO AND ITS PROBABLE 
TECTONIC RELATIONS. — 
By GrorGE I. ADAMS. 
(Professor of Geology, Pei Yang University, Tientsin, China.) 
Timor Island is situated in the eastern part of the Moluccas. 
This group shows certain trend lines which are in part well de- 
fined. In the western part, the “Java line” is marked by a close 
alignment of islands bearing volcanoes. In the eastern part, 
where the position of the islands is not so regular and there is 
a break in the chain of volcanoes, several interpretations have 
Fic. 1—Timor and neighboring islands. 
been offered as to the tectonic relations. Timor is one of the 
islands concerning which there has been uncertainty. The fol- 
lowing notes may serve to a clear understanding of its relations 
in the group. 
In September, 1910, 1 visited Timor for the purpose of ex- 
amining some occurrences of oil and gas. Before going to the 
island, I tried to inform myself concerning its geologic consti- 
*Cf. Suess, Das Antlitz der Erde. English translation, The Face of the 
HWarth, 3, 241-243; 4, 309. 
283 
