Penguin Books Ltd, Harmondsworth, Middlesex, England Penguin Books, 625 Madison Avenue, New York, New York 10022, U.S.A. Penguin Books Australia Ltd, Ringwood, Victoria, Australia Penguin Books Canada Ltd, 2801 John Street, Markham, Ontario Canada L3R 1B4 Penguin Books (N.Z.) Ltd, 182-190 Wairau Road, Auckland 10, New Zealand
First published in the U.S.A. by W. W. Norton & Co., Inc. 1981 Published simultaneously in Canada by George J. McLeod Ltd Published in Pelican Books 1984
Copyright © Stephen Jay Gould, 1981 All rights reserved
Made and printed in Great Britain by Richard Clay (The Chaucer Press) Ltd, Bungay, Suffolk Set in Baskerville
Except in the United States of America, this book is sold subject to the condition that it shall not, by way of trade or otherwise, be lent, re-sold, hired out, or otherwise circulated without the publisher’s prior consent in any form of binding or cover other than that in which it is published and without a similar condition including this condition being imposed on the subsequent purchaser