(1) Where, in connection with the extension of the Government scientific service, a person was, at some time before the second day of April, nineteen hundred and eighteen, taken into the civil service of the State after having been continuously employed for a period beginning not later than the fourth day of August, nineteen hundred and fourteen, by the National Physical Laboratory, and his employment by that Laboratory was, in the opinion of the Treasury, of the same nature and for the same purpose as his employment in the service of the State, his service in employment by that Laboratory before the first day of April, nineteen hundred and eighteen, but not before he attained the age of eighteen years, not being service which is reckonable for superannuation purposes under the superannuation scheme administered by that Laboratory, shall be reckoned for the purposes of the Superannuation Acts as employment in an unestablished capacity within the meaning of section 3 of the Superannuation Act, 1935.
(2) These Rules shall not have effect so as to authorise an increase in an annual superannuation allowance or pension so far as the allowance or pension is payable in respect of a period before the coming into operation of these Rules.