Beginning with the large painted initial C, Bocc.'s preface is divided into 37 extended sentences. The 37 sentences have prominent initial capital letters, most of which are highlighted. All the capitals in the preface were most likely highlighted when Aut was first copied. Since fols. 1r and 1v are stained and fol. 2r has significant over-tracing, however, this is not absolutely certain. Because the capitals are highlighted in fol. 2v, which is the least damaged of the four pages containing the preface, it is safe to assume that Bocc.'s plan was to highlight the initial capitals in all 37 sentences.
Almost the same system occurs in NO: 36 extended sentences, with a large painted initial at the first sentence, followed by 35 initial capital letters, most of them highlighted. Many of the other Teseida MSS have capitals in the preface, but the highlighted initialing is unique to Aut and NO and indicates their relationship.