The earth and its inhabitants .. . earthitsinhabita00recl Year: 1890 VOLCANOES OF THE PHILIPPINES. 247 quantities of ashes cover the surrounding districts far and wide. In 1814 the town of Daraga was buried and the ejected matter was wafted as far as Manilla, two hundred miles distant. Nazaraga (4,445 feet), a craterless dolorite cone, and Malinao, which appears to have been quiescent for ages, continue the igneous chain northwards to Iraga, the scene of a disturbance in 1641, when the little Lake Buhi was formed by a sudden Fig. 107. —SOTTTHEEN PaET OF LUZON. Scale 1 : 1,500,000. I23°20-
The earth and its inhabitants .. . earthitsinhabita00recl Year: 1890 VOLCANOES OF THE PHILIPPINES. 247 quantities of ashes cover the surrounding districts far and wide. In 1814 the town of Daraga was buried and the ejected matter was wafted as far as Manilla, two hundred miles distant. Nazaraga (4,445 feet), a craterless dolorite cone, and Malinao, which appears to have been quiescent for ages, continue the igneous chain northwards to Iraga, the scene of a disturbance in 1641, when the little Lake Buhi was formed by a sudden Fig. 107. —SOTTTHEEN PaET OF LUZON. Scale 1 : 1,500,000. I23°20- Lasb or breenwich I24°20' Dejiths. 0 to 50 Fathoms. 50 to 100 Fathoms, 100 Fathoms and upwards. 36 Miles. landslip. East of this lake the Tibi valley presents the most remarkable group of thermal, sulphurous, and silicious springs in the whole archipelago. They are copious enough to develop a rivulet of hot water, which the people of the neigh- bourhood utilise for culinary purposes. The springs precipitate considerable quantities of silica, covering the surface with dazzling white incrustations, and one jet of water and vapour has a temperature of no less than 226° F. At the neck of the Caramuan peninsula stands the broad-based Ysarog (Isarog),
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