Book 9 , of accidental risings of water.
924.
The Order of the Book.
Place at the beginning what a river can effect.
925.
A book of driving back armies by the force of a flood made by releasing waters.
A book showing how the waters safely bring down timber cut in the mountains.
A book of boats driven against the impetus of rivers.
A book of raising large bridges higher. Simply by the swelling of the waters.
A book of guarding against the impetus of rivers so that towns may not be damaged by them.
926.
A book of the ordering of rivers so as to preserve their banks.
A book of the mountains, which would stand forth and become land, if our hemisphere were to be uncovered by the water.
A book of the earth carried down by the waters to fill up the great abyss of the seas.
A book of the ways in which a tempest may of itself clear out filled up sea-ports.
A book of the shores of rivers and of their permanency.
A book of how to deal with rivers, so that they may keep their bottom scoured by their own flow near the cities they pass.
A book of how to make or to repair the foundations for bridges over the rivers.
A book of the repairs which ought to be made in walls and banks of rivers where the water strikes them.
A book of the formation of hills of sand or gravel at great depths in water.
927.
Water gives the first impetus to its motion.
A book of the levelling of waters by various means,
A book of diverting rivers from places where they do mischief.
A book of guiding rivers which occupy too much ground.
A book of parting rivers into several branches and making them fordable.
A book of the waters which with various currents pass through seas.
A book of deepening the beds of rivers by means of currents of water.
A book of controlling rivers so that the little beginnings of mischief, caused by them, may not increase.
A book of the various movements of 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 of apertures by which water flows out.
[3] A book of water contained in vessels with air, and of its movements.
[4] A book of the motion of water through a syphon. [Footnote 7: cicognole, see No. 966, 11, 17.]
[5] A book of the meetings and union of waters coming from different directions.
[6] A book of the various forms of the banks through which rivers pass.
[7] A book of the various forms of shoals formed under the sluices of rivers.
[8] A book of the windings and meanderings of the currents of rivers.
[9] A book of the various places whence the waters of rivers are derived.
[10] A book of the configuration of the shores of rivers and of their permanency.
[11] A book of the perpendicular fall of water on various objects.
[12] Abook of the course of water when it is impeded in various places.
[12] A book of the various forms of the obstacles which impede the course of waters.
[13] A book of the concavity and globosity formed round various objects at the bottom.
[14] Abook of conducting navigable canals above or beneath the rivers which intersect them.
[15] A book of the soils which absorb water in canals and of repairing them.
[16] Abook of creating currents for rivers, which quit their beds, [and] for rivers choked with soil.
General introduction.
929.