Oxford University Press, Great Clarendon Street, Oxford OX2 6DP OXFORD NEW YORK ATHENS AUCKLAND BANGKOK BOGOTA BOMBAY BUENOS AIRES CALCUTTA CAPE TOWN DAR ES SALAAM DELHI FLORENCE HONG KONG ISTANBUL KARACHI KUALA LUMPUR MADRAS MADRID MELBOURNE MEXICO CITY NAIROBI PARIS SINGAPORE TAIPEI TOKYO TORONTO and associated companies in BERLIN IBADAN Oxford is a trade mark of Oxford University Press © Oxford University Press 1969 First published 1969 Reprinted 1973, 1979, 1986, 1989, 1991, 1997 The picture on the cover, which represents Medea meditating the murder of her children, is taken from Désiré Raoul-Rochette, Choix de Peintures de Pompéi, 1867. It is a reproduction of a painting on the wall of the atrium of the building known as the House of Castor and Pollux in Pompeii, which was excavated in 1828-9. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or trans- mitted, in any form or by any means, without the prior permission in writing of Oxford University Press. Within the U.K., exceptions are allowed in respect of any fair dealing for the purpose of re- search or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act, 1988, or in the case of reprographic reproduc- tion in accordance with the terms of licences issued by the Copyright Licensing Agency. Enquiries con- cerning reproduction outside those terms and in other countries should be sent to the Rights Depart- ment, Oxford University Press, at the address above. Printed in Hong Kong -iv- |