The Principles of Biology

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The Principles of Biology (1910)
by Herbert Spencer
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2261227The Principles of Biology1910Herbert Spencer

This work was published before January 1, 1929, and is in the public domain worldwide because the author died at least 100 years ago.

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THE PRINCIPLES OF
BIOLOGY

BY

HERBERT SPENCER


IN TWO VOLUMES


VOLUME I

VOLUME II

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