See ‘On Ships’ Messer Battista, and Frontinus ‘On Acqueducts’ [Footnote 2: 2. Vitruvius de Arch., et Frontinus de Aquedoctibus. Florence, 1513.—This is the earliest edition of Frontinus.—The note referring to this author thus suggests a solution of the problem of the date of the Leicester Manuscript.].
[Footnote: Compare No. 1113, 25.]
Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.