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THE EVOLUTION OF THE EARTH

AND ITS INHABITANTS

[graphic]

FIG. A

Fig. B
Restorations of (A) the hypothetical proavian, and (B) the toothed bird Archæopteryx.

After Heilmann.

[graphic]

QE
26.

E8

The Evolution of the Earth

AND ITS INHABITANTS

A Series of lectures Delivered before the
Yale Chapter of the Sigma Xi during the
Academic Year 1916-1917

By
Joseph Barrell

Charles Schuchert
forande foss Woodruff
Richard Swann full
Ellsworth Huntington

166

NEW HAVEN

YALE UNIVERSITY PRESS
London : Humphrey Milford: Oxford University Press

MDCCCCXIX

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