This gospel book opens with sixteen pages of canon tables, allowing the reader to find events mentioned in all four Gospels by reading horizontally across the columns. The numbers in each column correspond to specific passages found in a single gospel. Eusebius of Caesarea devised this concordance system in the 300s. As was traditional throughout the Middle Ages, an architectural structure of arches and columns frames the list. On this first page of the canon tables, the Latin inscription over the arches, Incipit canon primus in quo quatuor (Beginning of the first canon in which [there are] four), indicates that this table records parallel stories in all four Gospels.