In section 26(2) of the M1Leasehold Reform Act 1967 for the words " the Mental Health Act 1959 ", " appointed under Part VIII of that Act " and " having jurisdiction under Part VIII of that Act " there shall be substituted respectively the words " Mental Health Act 1983 " , "appointed under Part VII of the said Act of 1983 or Part VIII of the Mental Health Act 1959 " and " having jurisdiction under Part VII of the said Act of 1983 ".