Notwithstanding anything in section 10 of the Act of 1845, the Company may substitute for the shareholders' address book provided under that section, or for the portion of any register which the Company may keep under section 25 (Register of shareholders and shareholders' address book) of this Act, containing such particulars as are required by the said Act of 1845 to be entered in the shareholders' address book, a card or other index (of a type to be approved by the auditors of the Company) containing the names and addresses of the several shareholders of the undertakers.