SECTION 1. The Secretary of War is hereby authorized to issue, in the name and behalf of the Government of the Philippine Islands, additional bonds in the amount of ten million dollars, the issue whereof may be authorized by an Act of Congress taking effect prior to the inauguration of the next session of the Philippine Legislature. The proceeds of said bonds shall be used for the construction of irrigation systems and other public works of a permanent character which may hereafter be authorized by the Legislature. The bonds so authorized to be issued shall be payable twenty years from the date of issue; may be coupon or registered bonds, convertible, in the discretion of the Secretary of War, into either form, and shall in all cases be registered, and in case of a transfer, the same may be registered in the United States Treasury; shall be dated on such date as the Secretary of War may direct, but not prior to the date of the Act of the United States Congress authorizing them, and shall bear interest at the rate Congress may authorize or the Secretary of War, the Governor-General, and the presiding officers of both Houses of the Philippine Legislature agree upon. Both principal and interest shall be payable in gold coin of the United States, in the Treasury of the United States.