Copyright © 1977 by the President and Fellows of Harvard College
All rights reserved
Printed in the United States of America

20    19    18    17    16    15

Library of Congress Cataloging in Publication Data

Gould, Stephen Jay.
        Ontogeny and phylogeny.

        Bibliography: p.
        Includes index.
        1. Phylogeny.      2. Ontogeny.      I. Title.

QH371.G68          575.01          76–45765

ISBN 0–674–63940–5 (cloth)
ISBN 0–674–63941–3 (paper)