The commissioners of election for each old county proposed to be cut shall canvass the returns of the managers of each precinct in their county at which such election has been held, as such returns in general elections in this State are canvassed, and shall certify the result thereof in a tabulated statement of the vote at each precinct to the Secretary of State who shall transmit a tabulated statement of the vote at each precinct of an old county proposed to be cut off to both branches of the General Assembly at its next session.