342 ADAJIS. 



as possible. This route lias been surveyed by tbe division of roads, and 

 some money has been spent in clearing a trail, but the route is not an 

 easy one and the building and maintaining of a road in tiiis section 

 would be very costly. 



Similarly, from Abuyog to Sogod tiie foot ti'ail is rugged and difficult, 

 and the coast between Abuyog and Hinunangau affoi'ds no place for the 

 construction of a road. With the exception of the route from Carigara 

 westward, it is probable that the Cordillera forms a barrier to tran.-iporta- 

 tion which will prove effective for a very long time. 



Mount Amandiumg. — The only peak of the Central Cordillera which 

 appears to be indicated in the Philippine Atlas as an extinct volcano is 

 Amandiuing. No explanation of the reason for this is given and it 

 may be that the symbol was intended to show the solfataras of Burauen. 

 However, several military officers who have ascended the flanks of Aman- 

 diuing have stated that it has the appearance of an extinct volcano, and 

 it may prove to be one since there is a hot sulpliur mud spot on its flank, 

 and there are hot springs at the source of a sti'eam which heads in tiiis 

 peak and -flows towards Jaro. 



Solfatarax near Burauen. — The solfatara of Casiboy south of Burauen 

 is indicated on d'Almonte's map as situated in Mount Himalacagan. As 

 will be seen from the succeeding quotations there is a second solffara 

 near by. 



The following description of these solfataras by Jagor is translated 

 from the Spanish edition of his travels in the Philippines: 



"South of Burauen risps the mountain ridge Manacagan,' on the furtlier slop? 

 of which is a large solfatara from which sulphur is obtained for the powder 

 factory established in Manila. From the gateway there Is seen to tlie south, 

 through the shade of the trees, a great white slope of Mount Danan." 



"At 9 o'clock we reached the crater of Casiboi where there is much vegeta- 

 tion and advancing to the south we saw some, sheds in which sulphur is 

 sublimated. A few hundred paces more to the south a stream flows 12 feet 

 wide, the water of which is hot (.30° Reaumur) and deposits siliceous sinter at 

 its borders." 



"Following from no)'tli to south along a ravine the walls of which have a 

 height of fiom 100 to 200 feet, the vegetation gradually diminishes and the 

 rock is so white as to. affect the eyes. In places it is of a j-ellow color due 

 to the sublimated sulphur deposited on it. In many places there rises from 

 the ground a penetrating, dense vapor with a pronounced odor of sulpluir. 

 Several hundred paces beyond, the valley turns to the left (east) and widens. 

 Here numerous siliceous springs break through the clayey earth which is 

 impregnated with sulphur. This solfatara must formerly have been more 

 active. The depression formed by the decomposition of the rock has a floor 

 covered with debris and measures about 1,000 feet wide and five times as long.'" 



"In the eastern part there- are a number of small boiling mud spots. From 

 holes made in their borders with a stick, water and steam ascend. In some 



'Mount Himalacagan on Abella's map. 



