All of the characters in this book are fictitious and any resemblance to actual persons, living or dead, is purely coincidental.
Penguin Books Ltd, Harmondsworth, Middlesex, England Penguin Books Australia Ltd, Ringwood, Victoria, Australia
First published Ronald Whiting & Wheaton 1966 Published in Penguin Books 1968 Copyright © John Petty, 1966
Made and printed in Great Britain by C. Nicholls & Company Ltd. Set in Intertype Times
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
Cover design by Richard Hollis, using a photograph from Geology (Oxford University Press)