Section 57. Any proprietor or shareholder entitled to vote at any meeting under this Act may give a proxy in wri

57. Any proprietor or shareholder entitled to vote at any meeting under this Act may give a proxy in writing, either general or special, under his hand or the hand of his attorney duly authorized, to any other proprietor or shareholder. Such proxy shall be produced at the time of voting, and shall entitle the person to whom it is given to vote on such matters as shall be authorized by the tenor of such proxy. But no person shall be permitted to vote in virtue of such proxy unless it has been left for registration at the office of the Bank at least three clear days before the time for holding the meeting at which it is intended to be used: Provided that a general proxy which has been registered at such office need not be again left for registration previous to any subsequent meeting. Proxies existing and in force with reference to any of the present Banks, on the first day of May 1876, shall continue in force and be available at meetings under this Act, anything herein contained notwithstanding. A general power-of-attorney shall be deemed a proxy within the meaning of this section.