PRINCIPLES

OF

GEOLOGY.

VOL. II.

LONDON:

Printed by A. SPOTTISWOODE, New-Street-Square.

OF

GEOLOGY:

BEING

AN INQUIRY HOW FAR THE FORMER CHANGES OF

THE EARTH'S SURFACE

ARE REFERABLE TO CAUSES NOW IN OPERATION.

BY

CHARLES LYELL, Esq. F.R.S.

PRESIDENT OF THE GEOLOGICAL SOCIETY OF LONDON.

"The inhabitants of the globe, like all the other parts of it, are subject to
change. It is not only the individual that perishes, but whole species."
"A change in the animal kingdom seems to be a part of the order of nature,
and is visible in instances to which human power cannot have extended."
PLAYFAIR, Illustrations of the Huttonian Theory, § 413.