Section 4
SEC. 4. All sums appropriated by this Act for the various Bureaus, Offices, and provinces shall be expended solely for the specific purposes for which appropriated, and for no others, and no amount appropriated for salaries and wages shall be available for the payment of contingent expenses nor shall any amount appropriated for contingent expenses be available for the payment of salaries and wages: Provided, That in any Bureau or Office, subject to approval by the Governor-General, or the proper head of Department, any unexpended balance under any item of contingent expense, not exceeding a total of ten per centum of the amount appropriated for such contingent expense, may be used to increase the amount under any other heading of contingent expense in said Bureau or Office: And provided further, That the appropriations herein made for each Bureau, Office, or province shall be available for payment of such expenses as may accrue to said Bureaus, Offices, or provinces by reason of the operations of Acts Numbered Fifteen hundred and nine, Sixteen hundred and ninety-eight, and Seventeen hundred and thirty-nine.