This looks like the declaration at the beginning of a section of the book. Henry Rice & Dennis Mulcahy are the signatories to this.
From the 'about' section on the NAI website :
'....The information was collected and the amounts were calculated by two Parochial Commissioners, one of whom was appointed by the cess-payers of the parish and the other by the relevant Diocese of the Church of Ireland.....'
Henry Rice and Dennis Mulcahy seem to be the appointed Commissioners for this area.
Shane