Appletons' Popular Science Monthly, January 1900: Vol. 56, November, 1899 to April, 1900Various
Science
Appletons' Popular Science Monthly, January 1900: Vol. 56, November, 1899 to April, 1900
Various
Science -- Periodicals; Technology -- Periodicals
This mountain has been active at short intervals down to the present
time. Sometimes its activity has been continuous for a year or more.
Its eruptions were frequently accompanied by earthquakes and storms.
The next outbreak after that described above was in 1827. In 1834
and 1835 the mountain was active nearly all the time. There was no
eruption of ashes, but every night a stream of molten lava could be
seen running into the higher ravines. In 1845 there was an eruption
of ashes which lasted several days; a violent eruption occurred in
1846, two unimportant ones in 1851, and another violent ash and stone
eruption occurred on July 27, 1853, during which thirty-one persons
were killed. Others occurred in 1855, 1857, 1858, 1859, 1860, 1865, and
1871. The heights of the Philippine volcanoes vary from ten thousand
and nine thousand feet (Albay or Mayon) down to Taal, only seven
hundred and eighty feet high. This curious volcano is upon an islet in
the middle of Lake Bombon, south of Manila. Lake Bombon was originally
probably a vast crater. It is separated from the China Sea by a narrow
isthmus. Taal contains secondary craters, crevasses emitting vapors,
and lakelets of acid water. It is the principal “show” volcano of the
islands, and was in action in 1885, when all the vegetation upon the
island was burned up. Lake Bombon was doubtless formerly connected with
the sea, the intervening barrier being formed of eruptive _scoriæ_. Its
water is still saline, and its marine fauna has adapted itself to its
modified environment.
On the small island Camiguin, on the northwest coast of Mindanao, is
the extinct volcano Catarman, with a crater lake upon its summit whose
level has been subject to great fluctuations. Sometimes the lake
dried up, and again it has overflowed and inundated the low lands in
the neighborhood, as in 1827 and 1862. Often its water has been set
boiling by escaping gases. It would be interesting to know what varying
pressure caused the changes in the level of this lake on the top of
Mount Catarman.
A further idea of the volcanic activity of this region may be gained
from the circumstance that a volcanic island emerged from the sea on
the north coast of Luzon in 1856, which grew to seven hundred feet in
height by 1860, and is now about eight hundred feet high. Every one
has seen photographs of the streets of Manila after an earthquake,
which form of subterranean activity is so common that it is taken into
account in building.
THE SCAVENGERS OF THE BODY.
BY M. A. DASTRE.
Public-domain text, read in full here on John Shaqi.
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