Contents: ff. 1r-39r: Philippe de Thaon (fl. 1113-1150), Comput (Anglo Norman) [added Latin title ‘lib[er] de creaturis’, in a 15th-century script]. ff. 40v-41r: Two short Latin texts on the Computus (beginning ‘In anno quo ciclus’ and ‘Quicumque adventum domini celebrare desiderat’). ff. 41r...