LAWS AFFECTED IN VOLUME 89 EXPLANATION General. The following table is designed to serve as a guide to prior laws which are patently amended, repealed, or otherwise affected by the textual provisions of the public laws and proclamations contained in this volume. This table is arranged chronologically. In preparing the table the "basic act" principle has been followed. Under this principle the key listing of amendatory legislation will be found under the basic act affected, r a the r than under intervening amendments thereto. F u r the r more, all laws included are t r e a t e d as if tables covering prior volumes of the United States Statutes at Large were in existence. Thus no a t t e m p t is made to give an historical picture of a law, and only the latest amendment in the chain will be reflected. Occasionally, to promote clarity, cross references have been supplied at key points. Users of the table should, therefore, look under the date, public law number, or statutes volume and page n u m b e r of the basic act affected, in order to determine w h e the r changes have been made by the public laws and proclamations contained in this volume. Although^ a given section of any act may have been added at a later date, the section is carried under the date and statutes citation of the basic act. For this reason the page n u m b e r s in the column headed " Statutes volume and page" are the numbers of the page on which each act begins. The "Comment" column describes the n a t u r e of the affecting action. These are editorial comments, intended to reflect w h a t is p a t e n t in the laws reviewed, and every effort has been made to avoid interpretations. From time to time the annual tables will be cumulated and made separately available as a convenience to users. The most recent cumulation is the Laws Affected Tables for 1956-1970, Volumes 70-84, United States Statutes at Large. Caveat. This table is editorially compiled and presented as a reference guide only. Hence it has no evidentiary s t a t u s or legal effect. Indirect or implied relationships are not included. These may be found through use of the Subject Index or through research based on the text itself. Note. Volumes 71 through 86 of the United States Statutes at Large included additional tables of amendments and other affecting actions for special groups of materials such as Revised Statutes, I n t e r n a l Revenue Codes, positive law titles of the United States Code, etc. Other tables listed broad A3
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