On or before the first day of October, the city auditor must deliver the corrected assessment book or roll to the city tax collector, with an affidavit attached thereto and by him subscribed as follows:

I, ______________, Auditor of the City of Bakersfield, do swear that I received the assessment book or roll of the taxable property of the City of Bakersfield from the Clerk of the Council of said City, with his affidavit thereto affixed; that I have reckoned and computed the respective sums due as taxes, and have added up the columns of valuations, and taxes as required by the Charter and ordinances of the City of Bakersfield, and that the book or roll to which this affidavit is affixed is the true assessment book or roll of said City, made in the manner prescribed by said Charter and ordinances.