Section 6

Section 6. And be it further enacted by the authority aforesaid, That in order that a knowledge of the said laws, ordinances, regulations and constitutions may at all times be had and obtained, and the publications thereof at all times be known and ascertained, such and so many of them as shall not be published in one or more of the public newspapers published in the said city, within fifteen days from and after their being severally passed, ordained and established, and also recorded in the office of recorder of deeds in and for the county of Allegheny, (who shall keep a separate book for that purpose, and shall be allowed and paid for recording thereof at the same rate as is allowed by law for recording deeds,) within thirty days from and after their being so as aforesaid passed, ordained and established, shall be null and void, and before any of the said laws, ordinances, regulations and constitutions shall be so as aforesaid recorded, the publications thereof respectively, with the times thereof, shall be proved by the oath or solemn affirmation of some credible person, which said oath or affirmation shall be recorded therewith, and at all times be deemed and taken as sufficient evidence of the time of such publication.