984 



the beach. From the east side a clear siirvej of the adjoining moun- 

 tains may be obtained. R. D. M. Verbf.ek has endeavoured to repre- 

 sent their relative positions in a profile*) Fig. 2. 



It will be seen thai after peak (4) — called by the natives Kiè 

 Matubn — comes a mountain (3), 903 m. high, which is followed 

 again directly by another (2), 661 m. high. The series is concluded 

 in the North by a cone (I) with two peaks, the southern emerging 

 665 m. above the sea-level. Verbeek considers this cone to be a 



Fig. 2. The Island of Tidore, seen from the E. 



collapsed volcano and has tried to give a reproduction of its oiiginal 

 shape. 



The long felt want of a topographical map of the island of Tidore, 

 has recently been supplied by a native surveyor on the instruction 

 of the Topographical Institute"). His sketchmap represents in a masterly 

 way the Tidore mountain-building, by which we are enabled to 

 judge of the accuracy of Verbeek's reproduction. 



C. G. C. Reinwardt was the tirst to ascend the Kiè Matubu 

 — the peak proper — from the capital of Soa Siu situated on the 

 South-east side, on August 29, 1821. It was then discovered that 



Archipel" 1. Batavia 1856, p. 212): "The southern half of the island is formed 

 "entirely by the peak of Tidore, a regular cone. The northern half on the 

 "contrary consists of a mountainous country, a wilderness of volcanic nature, only 

 "a link of the chain of volcanic mountains that surround Halmahera to the West." 

 — Concerning the last observation, it is scarcely to be doubted that the chain of 

 volcanoes in the Moluccas is continued first of all from the volcano of Maftutu to 

 the island of Maitara and thence again in northern direction to the islands of 

 Ternate and Hiri. Only then does it turn eastwards toward Halmahera. 



It may be, though, that, starling from the volcano of Maftutu, the chain also 

 branches off towards Halmahera, in north-eastern direction to the bay of Dodingah. 

 This extension, according R. D. M. Verbeek (MolukkenVerslag. Jaarboek van het 

 Mijnw. Ned.-Indië 37. Wetensch. ged. Batavia 1908, p. 162) is an old fallen-in 

 volcano with a radius of at least 5 km. According to E. Gogarten (Geologie van 

 Noord-Halmahera. Verhandel. Geolog. Mijnbouwk. Genootsch. 2. 's-Gravenhage 1918, 

 p. 269) andesite breccia and coarse-grained tuffs, in which fragments of white 

 pumicestone, are found also on the other side of the bay in the bay of Bobane. 



1) Molukken- Verslag. Jaarboek v. h. Mijnwezen in N. 0. 1. 37 Wet. ged. Batavia 

 1908, p. 144—146; Bijl. V, fig. 137. 



2) Sketch-map of the islands of Tidore and Maitara 1 : 20000. Batavia 1916. Topogr. 

 Institute. 



