Section 2
SEC. 2. All balances of the several appropriations made by this Act and by other previous public works Acts the destination of which has not yet been determine by the proper authority on June thirtieth, nineteen hundred and twenty-two, and all balances of appropriations which remain unexpended on June thirtieth, nineteen hundred and twenty-two, shall be reverted to the unappropriated funds in the Insular Treasury, and thereafter shall not be available for expenditure except upon appropriation by the Legislature.