Penguin Books Ltd, Harmondsworth, Middlesex
U.S.A.: Penguin Books Inc., 3300 Clipper Mill Road, Baltimore 11, Md [Educational Representative: D. C. Heath & Co., 285 Columbus Avenue, Boston 16, Mas]
CANADA: Penguin Books (Canada) Ltd, 47 Green Street, Saint Lambert, Montreal, P.Q.
AUSTRALIA: Penguin Books Pty Ltd, 762 Whitehorse Road, Mitcham, Victoria
SOUTH AFRICA: Penguin Books (S.A.) Pty Ltd, Gibraltar House,
Regent Road, Sea Point, Cape Town
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First published in book form by Penguin Books 1955
Made and printed in Great Britain by the Camelot Press Ltd, London and Southampton