PREFACE on Finance, Mr. George, of Georgia, a member of both committees, submitted the unanimously favorable report of the Committee on Finance on February 1. The bill was considered by the Senate on the following day and passed without a record vote. The 1939 codification was the fourth to be published by the staff of the Joint Committee on Internal Revenue Taxation. The first, published in 1930, embraced the general and permanent internal revenue laws in force on December 1, 1930; the second, published in 1933, the laws in force on July 16, 1932; and the third, published in 1938, the laws in force at the beginning of that year. In the preparation of these codifications, invaluable assistance was received from the Department of the Treasury, the Department of Justice, and the Legislative Reference Service of the Library of Congress. To the Division of Research and Publication of the Department of State grateful acknowledgment is made of the index to this volume and of their expert aid in the revision of the proof of the appendix. The appendix, published under the provisions of section 9 of the Internal Revenue Code, is divided into four parts. Part I consists of tables of reference to internal revenue statutes. Tables A and B have been described above. Table C cites the statutes expressly repealed, in whole or in part, together with the repealing statutes. Table D cites the statutes expressly amended or reenacted, with the amending or reenacting statutes. The derivation of the sections of the Revised Statutes relating to internal revenue is shown in table E. Mr. W . H. McClenon, of the Legislative Reference Service of the Library of Con- gress, rendered indispensable aid in the preparation of these tables, as well as of the Code generally. Part II of the appendix contains the provisions of the Constitution of the United States relating to taxation. Part III of the appendix, prepared by the Department of the Treas- ury, contains miscellaneous statutory and treaty provisions affecting the administration of internal revenue laws but omitted from the Code for the reason that they are of a temporary nature or do not relate exclusively to internal revenue. Part IV of the appendix digests several court opinions construing the repeal provisions of the Revised Statutes. The similarity of the repeal provisions of the Revised Statutes and those of the Code suggests the possible applicability of these decisions to questions that may arise affecting the Code.
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