First published in U.S.A. 1958 



@ Copyright by Abelard-Schuman Ltd 



Library of Congress Catalog Card No. 5S-6427 



Printed in Great Britain by 



William Clowes and Sons, Limited, London and Beccles 



for the publishers Abelard-Schuman Ltd. 



404 Fourth Avenue, New York 16, N.Y. 



