Butterworth-Heinemann
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A division of Reed Educational and Professional Publishing Ltd

A member of the Reed Elsevier plc group

First published 2000

© Howard Hughes 2000

All rights reserved. No part of this publication may be reproduced in any material form (including photocopying or storing in any medium by electronic means and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London, England W1P 0LP. Applications for the copyright holder’s written permission to reproduce any part of this publication should be addressed to the publishers

British Library Cataloguing in Publication Data
A catalogue record for this book is available from the British Library

ISBN 0 7506 4533 4

Composition by Genesis Typesetting, Laser Quay, Rochester, Kent Printed and bound in Great Britain