A brief explanation of the office of notary and the purpose of notarial documents (f. 1r), followed by transcriptions of deeds and acts arranged in subject order as examples for a notary drawing up a document. The numbering of books corresponding to subjects is frequently in error, and the manuscript was probably compiled for personal use by the notary Contarini (or Conticini). Subjects include loans, sale contracts, dowries, wills, confessions, and evidence. Deeds added at the end (f. 37v-40v) may be in multiple hands. A marginal note in a later hand is dated 1301 (f. 9r).