With 4 tables with commentaries (ff. 76v, 77v, 78v, 79v) and 1 table added by a different 13th-century hand (f. 80v). Decoration: Large puzzle initial 'C'(omputus) in blue and red. Smaller initials in blue with red pen-flourishing, or in red with blue pen-flourishing. Paraphs in red or blue. 6...