Section 12. Any shareholder may from time to time surrender his wholly paid-up shares, or any of them, to the di

12. Any shareholder may from time to time surrender his wholly paid-up shares, or any of them, to the directors, and demand and receive from the Bank, in lieu thereof, capital stock to the amount represented by the shares so surrendered, and any proprietor may from time to time surrender his stock, or any portion thereof, to the directors, and demand and receive from the Bank, in lieu thereof, shares to the like amount, or as near thereto as practicable.