Vortex affected by the Moon: its inclination and position: its
displacement--An example of the principle--Corrections
necessary--Milwaukie storm--New York storm--Ottawa storm--Liverpool
storm--Names and recurring order of the storm-producing agents--Record
of the weather--Second New York storm. 58

SECTION THIRD.

Lunar influence rejected by the learned--Their conclusions not
valid--Modifying causes in accordance with these principles--Years and
seasons vary in character--Superficial temperature of different
Planets--No storms on the planet Mars--Rotation the cause of Ocean and
Atmospheric Currents--Pressure of the atmosphere and its regular and
irregular variations--Terrestrial Magnetism--Internal Constitution of
the Globe--Magnetic variations--Cause of these variations--Magnetic
storms--Aurora Borealis: its altitude--Earthquakes; their possible
connection with Storms. 101

SECTION FOURTH.

The solar spots--Law of periodicity compared with the theory--Existence
of another planet beyond Neptune probable--Masses of the Sun and
Planet yet uncertain--The Law of Gravitation not above
suspicion--Proofs of this--The full of the Moon--Density of the
Ethereal Medium: its law in the Solar Vortex--Bode's law of the
planetary distances--Law of planetary density--Law connecting the
present and former diameters of the planets--Disturbing action of the
Ether--Kepler's third law not rigidly exact--Inconsistencies of
Astronomers--Nature of light and heat--Distinction between light and
heat. 147

SECTION FIFTH.

Comets--Their small inclinations--Their motions chiefly direct--Comet of
1770 and 1844--Cause of acceleration in the case of Encke--Anomalous
motions of the comet of 1843--Change of diameter at different
distances of a comet from the sun--Cause of this change--Nature of the
nebulosity--Formation of the tail--Compound nature of a comet's
light--motion and direction of a comet's tail--Phenomena presented by
the great comet of Halley--Mass of a comet--The Zodial light--Nebulous
stars--Shooting stars--Periodic showers--Periodicity doubtful--Cause
of the apparent periodicity--Cause for being more numerous in Autumn
than in Spring. 187

SECTION SIXTH.

State of the polar ice si