THE EARTH:

ITS PHYSICAL CONDITION AND MOST

REMARKABLE PHENOMENA.

BY

W. MULLINGER HIGGINS,

FELLOW OF THE GEOLOGICAL SOCIETY

AND LECTURER ON NATURAL PHILOSOPHY AT GUY'S HOSPITAL.

17 ya 46

Northwes

Uni, Lib, as

Page

Objects of physical science-divisions of science-influence
of theory-personal advantages derived from science-
proofs design-knowledge raises the standard of hap-
piness-pleasures of investigation-harmony of natural
agents-application of science to the arts-effects of
scientific knowledge-origin of the physical sciences-
importance of the mathematics-education

CHAPTER I.

THE EARTH IN RELATION TO THE UNIVERSE.

The form and dimensions of the earth-revolution of the

earth on its axis-theory of the formation of the earth-

centrifugal force-the pendulum-the fixed stars--the

planets-force of gravity-curvilinear motion-magni-

tude and distance of the planets-day and night

CHAPTER II.

CELESTIAL APPEARANCES.

Comets-origin of astrology-nebula-phases of the moon

-eclipses

CHAPTER III.

THE ATMOSPHERE AND ITS PHENOMENA.

Proofs of the existence of an atmosphere-composition of

air-properties of the atmosphere-transparency--fluidity

-balloons-expansibility of air-pressure of the atmo-

sphere-barometers-extent of the atmosphere-air a

conductor of sound echoes-wind

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