1029

Notes on the North Italian lake.

In many places there are streams of water which swell for six hours and ebb for six hours; and I, for my part, have seen one above the lake of Como called Fonte Pliniana, which increases and ebbs, as I have said, in such a way as to turn the stones of two mills; and when it fails it falls so low that it is like looking at water in a deep pit.

[Footnote: The fountain is known by this name to this day: it is near Torno, on the Eastern shore of Como. The waters still rise and fall with the flow and ebb of the tide as Pliny described it (Epist. IV, 30; Hist. Nat. II, 206).]

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

Notebooks of Leonoardo da Vinci
XVII: Topographical Notes.
. . .
Canals in the Milanese.
1009,
1010,
1011,
1012,
1013
Estimates and preparatory studies for canals.
1014,
1015
Notes on buildings in Milan.
1016,
1017,
1018,
1019,
1020
Remarks on natural phenomena in and near Milan.
1021,
1022
Note on Pavia.
1023
Notes on the Sforzesca near Vigevano.
1024,
1025,
1026,
1027,
1028
Notes on the North Italian lake.
1029,
1030,
1031,
1032,
1033
Notes on places in Central Italy, visited in 1502.
1034,
1035,
1036,
1037,
1038,
1039,
1040,
1041,
1042,
1043,
1044,
1045,
1046,
1047,
1048,
1049
. . .