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First published in the U.S.A. by Harvard University Press 1987 Published in Pelican Books 1988
Copyright © the President and Fellows of Harvard College, 1987 All rights reserved
Made and printed in Great Britain by Richard Clay Ltd, Bungay, Suffolk Filmset in Galliard
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