. The earth and its inhabitants ... Geography. 248 AUSTRALASIA. whose slopes occupy the whole space between the bays of San Miguel and Lagonoy, terminating in a regular cone, 6,450 feet high. Ysarog has been quiescent through- out modern times, and the only sign of former energy appears to be a spring of carbonic acid near the summit. The northern part of the Camarines peninsula is dominated by the two volcanic masses of Colasi and Labo (Tetas de Polantuna), which, however, have no craters, and apparently have been at rest since prehistoric times. Majayjay (6,500 feet) and San Cristobal (7,660
. The earth and its inhabitants ... Geography. 248 AUSTRALASIA. whose slopes occupy the whole space between the bays of San Miguel and Lagonoy, terminating in a regular cone, 6,450 feet high. Ysarog has been quiescent through- out modern times, and the only sign of former energy appears to be a spring of carbonic acid near the summit. The northern part of the Camarines peninsula is dominated by the two volcanic masses of Colasi and Labo (Tetas de Polantuna), which, however, have no craters, and apparently have been at rest since prehistoric times. Majayjay (6,500 feet) and San Cristobal (7,660 feet), south-east from JManilla, are also extinct. But west of them stands the volcano of Taal, which, although only 780 feet high, is one of the most remarkable in the Philippines. It occupies, with two other lesser cones, Fig. 108.—Central Part of Luzon. Scale 1 : 2,500, hasC or ureenwich 0to50 Fathoms. Depths. .50 to 100 Fathoms. 100 Fathoms and upwards. 60 Miles. an islet in the middle of Lake Bombon, which is separated from the China Sea by a low narrow isthmus. Taal, whose flanks are furrowed by deep gorges, terminates in an enormous crater, out of all proportion with its size. "Purgatory," as the natives call this crater, has a circumference of over 4,300 yards, and contains in its depths secondary craters, numerous crevasses emitting vapours, and two blue lakelets charged with sulphuric and hydrochloric acids in the proportion of over six per cent. Formerly the two other volcanoes in the island—the Great and Little Binintiang—ejected ashes alternately, and the bed of the lake itself was occasionally in a state of eruption ; but since 1749 all the underground forces have been centred in Mount Taal, which casts up showers of pulverised rock, but. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the or
Size: 1872px × 1335px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeography, bookyear18
