The water may be dammed up above the level of Romorantin to such a height, that in its fall it may be used for numerous mills.
The river at Villefranche may be conducted to Romorantin which may be done by the inhabitants; and the timber of which their houses are built may be carried in boats to Romorantin [Footnote 18: Compare No. 744.]. The river may be dammed up at such a height that the waters may be brought back to Romorantin with a convenient fall.
Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.