[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.