This is likely a reference to the 27 June 1840 meeting of the Nauvoo high council. Those minutes read: “Resolved— That the minutes of the Last Council be always read at the begini[n]g of the next, by the Clerk, that the chain of buisness may be more easily come at & error in the records detected.” (Nauvoo High Council Minutes, 27 June 1840; see also JS History, vol. C-1, 1066.)
Nauvoo High Council Minutes, 1839–1845. CHL. LR 3102 22.