On any sale of land under the operation of this Act by public auction or private contract, the conditions set out in the table marked "A" in Schedule 19 to this Act may be adopted by inserting the words "The conditions in Table A of the Registration of Titles Act shall apply to this contract", and when so adopted those conditions shall be construed as part of the contract subject to any express modification or exclusion of any of them which may be contained in the contract.