Vol. I: I. Prolegomena and General Introduction to the Book on Painting: 2.
The Da Vinci Notebooks
The preparation of the MSS. for publication.When you put together the science of the motions of water, remember to include under each proposition its application and use, in order that this science may not be useless.--
11:2 : A comparatively small portion of Leonardo's notes on water-power was published at Bologna in 1828, under the title: "Del moto e misura dell'Acqua, di L. da Vinci".