hj Alexander von Ilumloldt. xxv 



lines of fire were seen running uninterruptedly from the 

 top down the sides of the cones in eruption. But each of 

 the three volcanoes, Tengger, Idjen, and Slamat, present 

 examples of black lava currents, descending as far as the 

 tertiary strata. 



Streams of stone-boulders, red-hot, similar to those of the 

 Cotopaxi, but scarcely touching each other, flowed from 

 Gunung Lamorgan on 6th July, 1838. 



No active volcano is known in the island of Borneo. 

 The highest mountain of the whole island, perhaps of 

 the whole insular world of Southern Asia, is the Hina 

 Bailu (12,850 feet?) on the northern point of Borneo. It 

 is as yet unexplored. According to Dr. Lewis Horner, son 

 of the astronomer of the Krusenstern expedition, there occur 

 among the syenite and serpentine mountain range of Rathus, 

 on the S.E. of the island, deposits yielding gold (which has 

 even been worked by diggings), diamonds, platinum, iridium, 

 and osmium, — presenting, in fact, a similar association to 

 those of the Ural mountains. No mention is made of 

 palladium. Rajah (now Sir James) Brooke describes in the 

 province of Sarawak in Borneo, a low hill, Gunung Api 

 (" hill of fire " in Malay), the slags of which attest former 

 volcanic activity. A visit to Borneo would be of very great 

 service. 



There are eleven volcanoes in Celebes, and six in Florcs, 

 all active. 



It is still uncertain whether the conical mountain Wawari, 



