the safety-valves of the
regions in which they are placed, are supposed to be sealed up; and
it is a remarkable and highly-suggestive fact, that _no hurricane
follows such an earthquake_. The number of instances of the
concurrence of ordinary earthquakes and hurricanes might easily be
increased, but the preceding suffice to show the _generality_ of
their coincidence, both as _to time_ and place.

4th. The breaking of water-spouts on mountains sometimes accompanies
hurricanes.

In 1766, during the great Martinique hurricane, before cited.

"1826, Nov. At Teneriffe, enormous and most destructive water-spouts
fell on the culminating tops of the mountains, and a furious cyclone
raged around the island. The same occurred in 1812 and in
1837."--(Espy and Grey's Western Australia.)

"1829. Moray.--Floods and earthquakes, preceded by water-spouts and a
tremendous storm."--(Sir T. D. Lander.)

"1826, June. Hurricanes, accompanied by water-spouts and fall of
avalanches, in the White Mountains."--(Silliman's American Journal,
vol. xv.)

5th. The fall of an avalanche sometimes produces a hurricane.

"1819, Dec. A part (360,000,000 cubic feet) of the glacier fell from
the Weisshorn (9,000 feet). At the instant, when the snow and ice
struck the inferior mass of the glacier, the pastor of the village of
Randa, the sacristan, and some other persons, _observed a light_. A
frightful hurricane immediately succeeded."--(Edinburg Philosophical
Journal, 1820.)

6th. Water-spouts occur frequently near active volcanos.

This is well known with regard to the West Indies and the
Mediterranean. The following notices refer to the Malay Archipelago
and the Sandwich Islands:

"Water-spouts are often seen in the seas and straits adjacent to
Singapore. In Oct., 1841, I saw _six_ in action, attached to one
cloud. In August, 1838, one passed over the harbor and town of
Singapore, dismasting one ship, sinking another, and carrying off the
corner of the roof of a house, in its passage landward."--(Journal of
Indian Archipelago.)

"1809. An immense water-spout broke over the harbor of Honolulu. A
few years before, one broke on the north side of the island (Oahu),
washed away a number of houses, and drowned several
inhabitants."--(Jarves' History of Sa