Such acknowledgment may be made before any person or officer now or hereafter to be authorized by the laws of this commonwealth to take acknowledgments of deeds or other instruments of writing, whose certificate of such acknowledgment shall be in substantially the following form: I hereby certify that on this ______ day of ______, in the year of our Lord and ______, before me, the subscriber (title of officer taking acknowledgment), personally appeared (name of attorney) the attorney named in the foregoing (name of instrument), and by virtue and in pursuance of the authority therein conferred upon him, acknowledged the said (name of instrument) to be the act of the said (corporation's name). Witness my hand and ______ seal the day and year aforesaid.