4.—(1)
(2) The war service contribution shall, subject to the provision of Regulation 5 hereof, be the aggregate of—
(a)
(b)a sum equivalent to compound interest on the capital sum at the rate of 3 per cent. per annum, with annual stops, from the date which fell half way between the commencement and the termination of the period mentioned in sub-paragraph (a) of this paragraph until the date when the special contribution is applied in manner provided by the next succeeding paragraph of this Regulation.
(3) The war service contribution shall (together with any sum not exceeding one half thereof which the officer may elect to pay to the Department for that purpose) be applied by the Department in such manner as may be provided in the superannuation scheme operated under the Federated Superanuation System for Universities to which the officer is subject for the application of contributions paid under that scheme, or in such other manner as the Treasury may prescribe.