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THE first edition of this work was published in 1940. Within six years a new edition, "three times as large as the first," has been made desirable, partly by the developments caused by the recent war, partly by a number of decisions in the House of Lords reversing some views that had generally prevailed, and partly because of the author's desire, to make a more thorough and critical review of the field. This edition well deserves a full review on its own merits.
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