The affidavit of the printer or publisher of the newspaper, or of his foreman or clerk, in which the description mentioned in section 56:3-16 of this title has been printed as required by section 56:3-17 of this title, showing that the same has been published as so required, annexed to a printed copy of the description as published, shall be received as evidence of the required publication and also of the matters therein stated in all courts and places.
N.J.S. § 56:3-19