976

On the alterations in the channels of rivers.

OF THE VIBRATION OF THE EARTH.

The subterranean channels of waters, like those which exist between the air and the earth, are those which unceasingly wear away and deepen the beds of their currents.

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

975 * 977

XIV * XVII

Notebooks of Leonoardo da Vinci

XVI: Physical Geography.

. . .

956,

957,

958,

959,

960

Theory of the circulation of the waters.

961,

962

Observations in support of the hypothesis.

963,

964,

965,

966,

967,

968,

969

On the way in which the sources of rivers are fed.

970

The tide in estuaries.

971

confluence.

972,

973,

974

Whirlpools.

975

On the alterations in the channels of rivers.

976

The origin of the sand in rivers.

977,

978

The formation of mountains.

979,

980,

981,

982,

983

The authorities for the study of the structure of the earth.

984,

985

Doubts about the deluge.

986

That marine shells could not go up the mountains.

987

The marine shells were not produced away from the sea.

988

Further researches.

989,

990,

991