waters passing through channels of different forms.
A book of preventing small rivers from diverting the larger one into which their waters run.
A book of the lowest level which can be found in the current of the surface of rivers.
A book of the origin of rivers which flow from the high tops of mountains.
A book of the various motions of waters in their rivers.
928.
[1] Of inequality in the concavity of a ship. [Footnote 1: The first line of this passage was added subsequently, evidently as a correction of the following line.]
[1] A book of the inequality in the curve of the sides of ships.
[1] A book of the inequality in the position of the tiller.
[1] A book of the inequality in the keel of ships.
[2] A book of various forms