The provisions of sections 447.7 through 447.13 shall, so far as those sections shall be applicable, and are not changed or modified in this chapter, apply to sales of real estate for delinquent taxes contemplated in this chapter; but where the words “auditor of the county” or “treasurer” are used in those sections the words “city clerk”, “recorder”, “auditor”, or “person authorized to make out the tax list” and “city collector” or “city treasurer or officer authorized to receive same” shall be substituted.