PUBLIC LAWS-CHS. 521 , 545-AUG. 7, 1939 Statement contain- ing details of activities during period. 52 Stat. 632. 22 U. S. C., Supp. IV, § 233d. Permanent record of statements; public in- spection. Proviso. Withdrawal of registration statement of person ceasing ac- tivities. August 7, 1939 [H. R . 2178] [Public, No. 320] Alaska Railroad Re- tirement Act, amend- ments. 49 Stat. 2020 , 2021 . 5 U. 8. C., Supp. IV. §§ 745e, 745f. Annuities;computa- tion. Service on Alaska Railroad and certain military, etc., service. Purchasable annu- ity. Service elsewhere. Proviso. Limitation on num- ber of years. Service, construc- tion of Alaska Rail- road. Service on Isthmus of Panama. Minimum annuity. "(c) A statement containing such details required under this Act as the Secretary shall fix, of the activities of such person as agent of a foreign principal during such six months' period." SEc. 3. That section 4 of the Act entitled "An Act to require the registration of certain persons employed by agencies to disseminate propaganda in the United States and for other purposes", approved June 8, 1938 (Public Law Numbered 583, Seventy-fifth Congress, third session), is hereby amended to read as follows: "SEC. 4 . The Secretary shall retain in permanent form all state- ments filed under this Act, and such statements shall be public records and open to public examination and inspection at all reasonable hours, under such rules and regulations as the Secretary may prescribe: Provided,That the Secretary is hereby authorized to withdraw from the public records the registration statement of any person whose activities have ceased to be of a character which requires registration under the terms of this Act." Approved, August 7, 1939. [CHAPTER 545] AN ACT To amend sections 6 and 7 of the Act entitled "An Act for the retirement of employees of the Alaska Railroad, Territory of Alaska, who are citizens of the United States", approved June 29, 1936. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That sections 6 and 7 of the Act entitled "An Act for the retirement of employees of the Alaska Railroad, Territory of Alaska, who are citizens of the United States", approved June 29, 1936 (49 Stat. 2017), are hereby amended to read as follows: "SEC. 6 . The annuity of an employee retired under the provisions of this Act shall be composed of- "(1) A sum equal to $37.50 multiplied by the number of years of service, not to exceed thirty years, rendered (a) on the Alaska Rail- road or (b) in the military or naval service of the United States in the Tropics or in Alaska; and "(2) The annuity purchasable with the sum to the credit of the employee's individual account, including accrued interest thereon computed as prescribed in section 11 (a) hereof, according to the experience of the Alaska Railroad retirement and disability fund as may from time to time be set forth in tables of annuity values by the board of actuaries; and "(3) Thirty dollars multiplied by the number of years of service rendered and not allowable under paragraph (1) hereof: Provided, That the number of years of service to be used in computing the allowance under paragraph (3) shall not exceed the difference between thirty and the number of allowable years of service under paragraph (1); and "(4) Thirty-six dollars multiplied by the number of years' service rendered in the Territory of Alaska in the construction of the Alaska Railroad, either in the employ of the Alaskan Engineering Commis- sion and the Alaska Railroad or of either of them, etween March 12, 1914, and July 1, 1923, plus the number of years' service, if any, rendered on the Isthmus of Panama either m the employ of the Isthmian Canal Commission or the Panama Railroad Company between May 4,1904, and April 1, 1914. "In no case, however, shall the total annuity paid exclusive of that provided in paragraph (4) hereof, be less than an amount equal to the sum of- 1246 [53 STAT.