Section 14
SEC. 14. Section 25 of the same decree is hereby amended to read as follows: "SEC. 25. Group Development. The claimowner/lessee may concentrate all the annual work obligations on any one or more of several contiguous or geologically related mining claims in one province if it can be shown to the Director that such concentration of work will be most advantageous and beneficial in the development and operation of said mining claims: Provided, That any expenditure in any calendar year in excess of the minimum amount required for work obligations per hectare may be carried forward and credited to the work obligations of the group claims for the suceeding year of years: Provided, Further, That if the expenditure incurred for any claim is less than that required in any year, the difference shall be paid and accrue to the Bureau of Mines to be used exclusively for the purpose mentioned in Section 95 of the Decree. "x x x x"