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ANIMATE NATURE

THE GIFFORD LECTURES DELIVERED IN

THE UNIVERSITY OF ST. ANDREWS

IN THE YEARS 1915 AND 1916

BY

J. ARTHUR THOMSON, M.A., LL.D.
Professor of Natural History in the University of Aberdeen

IN TWO VOLUMES

VOL. II

NEW YORK

HENRY HOLT AND COMPANY

COPYRIGHT, 1920

BY

HENRY HOLT AND COMPANY

The Quinn & Boden Company
BOOK MANUFACTURERS
NEW JERSEY
RAHWAY

CONTENTS

477

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545

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