The Da Vinci Notebooks
See 'On Ships' Messer Battista, and Frontinus 'On Acqueducts' 815 .
445:815 2: 2. Vitruvius de Arch., et Frontinus de Aquedoctibus. Florence, l5l3.--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.
445:816 : Compare No. 1113, 25.