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NEW YORK

D. Van Nostrand Company, Inc., 250 Fourth Avenue, New York 3

TORONTO

D. Van Nostrand Company (Canada), Ltd., 25 Hollinger Rd., Toronto

LONDON

Macmillan & Company, Ltd., St. Martin’s Street, London, W.C. 2

Copyright, 1954, by

D. VAN NOSTRAND COMPANY, INC.

Published simultaneously in Canada by D. Van Nostrand Company (Canada), Ltd.

All rights in this book are reserved. Without written authorization from D. Van Nostrand Company, Inc., 250 Fourth Avenue, New York 3, New York, it may not be reproduced in any form in whole or in part (except for quotation in critical articles or reviews), nor may it be used for dramatic, motion-talking-picture, radio, television, or any other similar purpose.

Library of Congress Catalogue Card No. 54-5780

First Printing, March 1954

Second (Prepublication) Printing, March 1954

Third Printing, May 1954

Printed in the United States of America