576 PUBLIC LAWS-CHS. 605, 607, 608-JUNE 22, 23, 1948 [62 STAT. [CHAPTER 605] AN ACT June 22, 1ANACT [H. R . 5071] To extend the public-land laws of the United States to certain lands, consisting (Public Law 742] of islands, situated in the Red River in Oklahoma. Red River in Okla- homa. Extension of public- land laws. Settlement claims and homestead en- tries. Repeal. 30 U.S. C. §§230- 236. June 23, 1948 [H. R. 2588] [Public Law 743] Air mail. Use of govemment- owned vehicles. Helicopters. Effective date. June 23, 1948 [H. R. 67661 [Public Law 744] Railroad retirement and unemployment insurance. 50 Stat. 310; 60 Stat. 728. 4U.S.C.§228c (a), (e). Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the public-land laws of the United States be, and the same are hereby, extended to the public lands in that part of the Red River between the medial line and the south bank of the river, in Oklahoma, between the ninety- eighth meridian and the east boundary of the territory established as Greer County by the Act of May 4, 1896 (29 Stat. 113): Provided, That such lands shall not be subject to disposition, settlement, or occupation until after the same have been classified and opened to entry, and other disposal by the Secretary of the Interior according to law. SEC. 2. The Secretary of the Interior is hereby authorized and directed to recognize equitable claims to such lands based on settlement made prior to January 1, 1934, and all homestead entries of such lands, the allowance of which was erroneous because the lands were not subject to entry, and all suspended entries and applications to make final proof, are hereby validated if otherwise regular, as of the date of the regular application. SEC. 3. Except as to existing valid rights, the Act of March 4, 1923 (42 Stat. 1448) is hereby repealed. Approved June 22, 1948. [CHAPTER 607] AN ACT Requiring all mails consigned to an airport from a post office or branch, or from an airport to a post office or branch, within a radius of thirty-five miles of a city in which there has been established a Government-owned vehicle service to be delivered by Government-owned motor vehicles. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That all mail con- signed from an airport to a post office at which there is established a Government-owned motor-vehicle service operated by driver- mechanics in the motor-vehicle service of the Post Office Department or from such a post office to an airport, shall, if possible, be transported by such Government-owned motor vehicle: Provided,That such mails need not be so transported when the distance between the post office and the airport is in excess of thirty-five miles. SEC. 2 . Nothing in this Act shall be construed as prohibiting the delivery of such mails by helicopter or similar aircraft. SEC. 3 . This Act shall become effective ninety days after enactment. Approved June 23, 1948. [CHAPTER 608] AN ACT To amend the Railroad Retirement Act of 1937, as amended, and the Railroad Unemployment Insurance Act, as amended, and for other purposes. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That subsection (a) of section 3 of the Railroad Retirement Act of 1937, as amended, is amended by changing "2" to "2.40", "1Y2" to "1.80", and "1" to "1.20". Subsection (e) of section 3 of the Railroad Retirement Act of 1937, as amended, is amended by changing "$3" to "$3.60" and "$50" to "$60"
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