...not exceeding ten years, upon such terms and conditions as he may by general regulations prescribe: Provided, That where leases are given hereunder for...such lease may, in the discretion of the Secretary of the Interior, be for an area not to exceed thirty square miles : Provided -further, That nothing...

...general regulations prescribe; Provided, That where leases are given hereunder for islands or lande within the same such lease may, in the discretion of the Secretary of the Interior, be for an area not to exceed thirty square miles: Provided further, That nothing herein...

...not exceeding ten years, upon such terms and conditions as he may by general regulations prescribe : Provided. That where leases are given hereunder for...such lease may, in the discretion of the Secretary of the Interior, be for an area not to exceed thirty square miles : Provided further. That nothing...

...conditions as he may by general regulations prescribe: Provided, That where leases are given hereundcr for islands or lands within the same such lease may, in the discretion of the Secretary of the Interior, be for an area not to exceed thirty square miles : Provided further. That nothing...

...That where leases are given hereunder for islands or lands within the same, such lease may, in the discretion of the Secretary of the Interior, be for...development, entering, leasing, or patenting of the mineral resourses of any lands so leased under laws applicable thereto: And provided further, That this section...