This page has been validated.
FIRST PUBLISHED IN GREAT BRITAIN IN 1930
SECOND IMPRESSION 1948
THIRD IMPRESSION 1950
This book is copyright under the Berne Convention
No portion of it may be reproduced by
any process without written permission.
Inquiries to be addressed to the publisher
PRINTED IN GREAT BRITAIN BY
BUTLER AND TANNER LTD., FROME AND LONDON
