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LIBRARY OF CONGRESS
NEW SERIES, VOLUME 20
Published by authority of the Acts of Congress of March 3, 1891, of June 30, 1906, and of March 4, 1909
GOVERNMENT PRINTING OFFICE
These two additional title-pages are supplied because the Catalogue of Copyright Entries for Part 1, Group 2, for 1923 is too large to be conveniently bound in one volume. Those who prefer to do so can now bind in half-year volumes, or they can bind the text and the index as separate volumes.