ovement of a body of air, the space previously occupied by that
body must be resupplied by another of equal volume. This resupply may
not necessarily be derived from the circumambient atmosphere as
heretofore supposed. In some instances the resupply is derived _in but
slight degree_ from that source, but rather from that great reservoir,
the earth; as in the instances of whirlwinds and tornadoes.

_Philosophical Considerations drawn from Observation._

FLAMMARIAN says:--"We know that a whirlwind is a column of air which
turns upon its own axis, and which advances comparatively slowly, for,
as a rule, a person can keep up with it at a walking pace. This whirling
column of air is both caused and set in motion by electricity."

If whirlwinds are caused and set in motion by electricity, why may not
all other forms of wind be productions of the same force? PELTIER has
established both by numerous facts and by a series of ingenious
experiments, that the waterspouts of the land and sea are electrical
phenomena.

This had been suspected by BECCARIA a hundred years before.

The hurricane which occurred in the Barbadoes in 1831, was the most
remarkable on record. In the actions of the hurricane and the electrical
displays, there was abundant evidence of cause and effect.

The lightning for hours played in flashes and forked darts, and moved
frightfully between the clouds and the earth, with a most surprising
action, and the earth was felt to tremble. The moment this singular
alternation of the lightning passing to and fro ceased, the hurricane
burst forth with a violence which exceeded all that had yet been
experienced. The winds blowing with appalling velocity, changed their
course frequently and almost instantaneously, occasionally abating but
only to return in gusts from S. W.-W. and N. W. with accumulated fury.

These alternations of wind and violent electrical phenomena, were
something more than coincident, more than a casual connection. Here we
observe a manifest inter-dependence.

In another hurricane, "the wind blew about twelve hours with the utmost
fury from the N. E. and then, in an instant, perfect calm ensued for an
hour, then, quick as thought, the hurricane sprang up with tremendous
force from the S. W." No other power known can suspend and put in
motion, in opposite directions, such marvellous velocities and so
instantaneously.

A remarkable phenomenon was exhibited by a hurricane in 1837, and