The gaveller may, for and on behalf of Her Majesty, her heirs and successors, accept from the owner or owners of any gale the surrender of any part of such gale on such terms and subject to such conditions as to rent, royalty, and other liabilities in respect of the same as he shall think expedient and proper, in like manner and subject to the like conditions as he is now under the provisions of the principal Acts empowered to accept the surrender of a whole gale.