Butterworth-Heinemann Linacre House, Jordan Hill, Oxford OX2 8DP 225 Wildwood Avenue, Woburn, MA 01801-2041 A division of Reed Educational and Professional Publishing Ltd A member of the Reed Elsevier plc group First published 1972 Second edition 1978 Third edition 1988 Fourth edition 1994 Reprinted 1997, 1998, 1999, 2000 Fifth edition 2001 © D. J. Eyres 1972, 1978, 1988, 1994, 2001 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.