The process of repairing holes in a folio by pasting in a replica piece of vellum. quire A group of folios folded and stitched together. Quires are the units of which the codex is constructed. See: booklet, fascicle and gathering. ra. Refers to the position on the folio. That is, the recto side of the folio, in column a (the left-hand column). See: column, folio, recto.