PUBLIC LAWS-CHS. 686, 687-OCT. 13, 1949 61 Stat. 259. D. C . Code §31-07. Short ttle. Effective date. (b) Section 18 of the Act entitled "An Act to fix and regulate the salaries of teachers, school officers, and other employees of the Board of Education of the District of Columbia, and for other purposes", approved July 7, 1947; and (c) So much of the first section of the Act entitled "An Act making appropriations for sundry civil expenses of the Government for the fiscal year ending June thirtieth, nineteen hundred and twelve, and for other purposes", approved March 4, 1911 (36 Stat. 1395), under the subheading "District of Columbia", as reads: "Provided, That leave of absence of any regularly employed teacher shall not exceed thirty calendar days in any one school year, and for this period such teacher who may be absent shall be paid, in case the absence is due to personal illness, death in family, or quarantine on account of contagious disease, the salary of the position, less the amount paid to the substitute teacher, and any absence in excess of said thirty days or absence for cause other than herein specified shall be without compensation: Providedfurther, That all other employees of the Board of Education may, in the discre- tion of said Board, he granted not exceeding thirty days' leave of absence with pay in any one calendar year, and in the event of the absence of any janitor, assistant janitor, engineer, assistant engineer, or caretaker, at any time during school sessions the Board of Educa- tion is hereby authorized to appoint a substitute, who shall be paid the salary of the position in which employed, and the amount paid to such substitute shall be deducted from the salary of the absent employee." SEC. 10. This Act may be cited as "District of Columbia Teachers' Leave Act of 1949". SEC. 11. This Act shall become effective July 1, 1949. Approved October 13, 1949. [CHAPTER 6871 October 13, 1949 [H. R. 5328] [Public Law 354] San Francisco, Callt. Conveyance. Rights reserved to U.S. Grant of land to State for National Guard. AN ACT Authorizing the Secretary of the Army to convey certain lands to the city and county of San Francisco. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the Secretary of the Army is authorized to convey by quitclaim deed to the city and county of San Francisco, for public park and recreational purposes, forty-two acres of land, more or less, in the city and county of San Francisco, State of California, being that portion of the Fort Funston Military Reservation situated north of the northerly boundary of land heretofore transferred by the Secretary of the Army to the Veterans' Administration, the exact description of land to be conveyed to be determined by the Secretary of the Army. SEC. 2. The deed of conveyance authorized by section 1 of this Act shall provide as follows: a. That the United States shall reserve to itself the right to use and occupy for so long as is necessary all those living quarters and appurtenances thereto now located within the area to be conveyed, together with the free and full right of ingress to and egress from said quarters. b. That the city and county of San Francisco shall grant to the State of California the use, for a period of ninety-nine years, of approximately seven acres of the land herein provided for con- veyance for the purpose of erection thereon by the State of Cali- fornia of National Guard facilities, such grant to be upon condi- tion that the activities of the National Guard on such land shall not be of such nature as would, in the judgment of the Adminis- trator of Veterans' Affairs, interfere with the care and treatment 844 [63 STAT.