Chap. 575. An Act relative to the effective date of the law PROVIDING SURVIVOR BENEFITS TO CERTAIN ELIGIBLE WIDOWS AND CHILDREN UNDER THE CONTRIBUTORY RETIREMENT LAW. Be it enacted; etc., as follows: The provisions of sections twelve and twelve B of chapter thirty-two of the General Laws, as amended by sections one and two, respectively, of chapter six hundred and seventeen of the acts of nineteen hundred and fifty-nine and of section twelve C of chapter thirty-two of the General Laws, as inserted by section three of said chapter six hundred and seventeen, shall apply to the widow and children of any employee whose death occurred on or after July first, nineteen hundred and fifty-eight. Approved July 12, 1968. Chap. 576, An Act to continue unemployment benefits for DISABLED PERSONS. Be it enacted, etc., as follows: The last paragraph of section 24 of chapter 151A of the General Laws, as most recently amended by chapter 528 of the acts of 1966, is hereby further amended by striking out, in line 8, the word "two " and inserting in place thereof the word: — three, — so as to read as follows: —- No individual shall be considered ineligible for benefits because of failure to comply with the provisions of said clause (b) if such failure is due to an illness or disability which occurs during a period of unemployment after he has filed a claim and registered for work, and has been determined to be otherwise eligible; provided, that no work which would have been considered suitable but for such illness or disability was offered to him after he became ill or disabled; provided further, that the exception granted under this paragraph shall apply to three weeks only within a benefit year. Approved July 12, 1968. Chap. 577. An Act designating the north reading rehabilitation CENTER IN THE TOWN OF NORTH READING AS THE JOHN T. BERRY REHABILITATION CENTER. Be it enacted, etc., as follows: The North Reading rehabilitation center in the town of North Reading shall be known and designated as the John T. Berry rehabilitation center in memory of Representative John T. Berry. A suitable marker bearing said designation shall be attached thereto by the department of mental health. Approved July 12, 1968. Chap. 578. An Act providing for an assistant clerk in the third DISTRICT COURT OF PLYMOUTH. Be it enacted, etc., as follows: The first paragraph of section 10 of chapter 218 of the General Laws is hereby amended by striking out the second sentence, as most recently amended by chapter 192 of the acts of 1968, and inserting in place thereof the following sentence: — Assistant clerks with salaries payable by the