(3)There shall be charged on and paid out of the revenues of the Federation into the Exchequer such periodical or other sums as may from time to time be agreed between the Governor-General and the Treasury in respect of so much of the expenses of the department of the Secretary of State as is attributable to the performance on behalf of the Federation of such functions as it may be agreed between the Secretary of State and the Governor-General that that department should so perform.GOI.281