orce.

_The true Source of Supply._

In seeking the source of supply of heat and light, we are compelled to
look for a philosophy more consistent than any hitherto advanced.
Controlled too much by the literal evidence of the senses and the
superficial appearance of things, we have ever regarded the sun as ALL
ALONE in developing and exercising these great forces.

The law of conservation compels us to look to the _earth_, a heretofore
neglected factor in this problem. This factor being introduced we shall
find the problem to be wonderfully simplified.

All space may rationally be regarded as complete vacuum, thus presenting
no resistance nor obstacles to the free progress of the retro-acting
elements. Distance is then virtually annihilated, and Mercury,
37,000,000 of miles from the sun, and Neptune, 2,800,000,000 of miles,
stand alike in their relations with the great central orb.

_The Earth's part in the Process._

The earth may no longer be regarded as having a merely passive part to
play. The forces in operation as between the earth and sun, are purely
co-operative, and the one precisely counterbalances the other. The
earth, therefore, must have a _vis viva_ within itself, capable of
reciprocating in the organic functions of the great vito-magnetic
circuit. We certainly know that it possesses a marvellous wealth of
resources. The following are the most important of its sources of _vis
viva_.

1st. The great reservoir of vito-magnetic fluid, the vast incandescent
earth-core. The presence and activity therein of mighty force,--of heat,
and motion, in the highest degree, are abundantly shown by various
terrestrial phenomena. These phenomena, while perfectly familiar to
observers, seem never to have received any fitting interpretation.

2d. Motions and frictions of every kind;[C] the motions of the waters of
the earth, the great oceans, with their rolling tides sweeping the whole
circumference of the earth twice in twenty-four hours, at a speed of one
thousand miles per hour; with its frictions upon itself, the bottom, and
the shores; its great storms lashing it into fury, and its gentler
motions from lesser winds; also the motions of all seas, rivers, and
rain-falls.

3d. So all motions of the air, in form of hurricanes, lesser winds, or
zephyrs; tearing their way through forests, and hills, and through
space; or causing gentlest flutter of leaflet. We have witnessed