1121

Diving apparatus and Skating.

A definition as to why a man who slides on ice does not fall. [Footnote: An indistinct sketch accompanies the passage, in the original.]

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

. . .

The ship’s logs of Vitruvius, of Alberti and of Leonardo.

Methods of staying and moving in water.

On naval warfare.

1115,

The use of swimming belts.

On the gravity of water.

Diving apparatus and Skating.

1119,

1120,

On Flying machines.

1122,

1123,

1124,

1125,

Of mining.

Of Greek fire.

Of Music.

1129,

Of decorations.

. . .