Viviani's Note
on Manetti, the first owner of Codex 72

The following note by Viviani is found in the Ms. Gal. 318, folio 710r, in the Biblioteca Nazionale in Florence. See also FAVARO 1886, pp. 17-18:

"Of Sig. Galileo's unpublished works and writings still in manuscript form, there was none in Florence who owned more of them than Sig. Braccio Manetti. In addition to his own, he inherited all those possessed by Niccolo' Aggiunti, and then those of Dino Peri, plus many others [owned by] Pieralli, Professor at the Sapienza, and Doctor Puccianti, which are a great many. In particular, he owned the following works of Sig. Galileo: [...]

"De i discorsi e Compositioni manuscritte, e non stampate del Sig.r Galileo non era in Firenze chi ne avesse maggior quantita' che il Sig.r Braccio Manetti, il quale, oltre alle proprie eredito' tutte quelle che aveva Niccolo' Aggiunti, e dopo quelle di Dino Peri e molte ancora del Pieralli Dottor di Sapienza e del Dottor Puccianti, che sono moltissime, aveva particolarmente del Sig.r Galilei: [...]

Although the note does not explicitly mention the fragments on the Discorsi, all the other items are the same as in Nelli's catalogue, entered in an identical order, see also the comparison with Nelli's list. It is therefore very likely that also the notes on motion and mechanics of Codex 72 were in the possession of Braccio Manetti, see the history of the codex in the 17th century.