Section 4
SEC. 4. This Act shall be retroactive in its effect so as to include nil licenses which have become due on and after July first, nineteen hundred and five, and in all cases where license fees have been paid under existing laws since that date a refund shall be paid to the licensee in an amount equal to the difference between the license Ice under existing law and that under this Act, and appropriation is hereby made, out of any funds in the Insular Treasury not otherwise appropriated, in such amount as may be necessary to make the refunds hereby authorized. In all cases where license fees have become due since said date, but have not been paid, licenses shall be issued under this Act.