Quotation from: The Notebooks of Leonardo Da Vinci
Written by: Leonardo da Vinci
OF THE SEA WHICH ENCIRCLES THE EARTH.
I find that of old, the state of the earth was that its plains were
all covered up and hidden by salt water. [Footnote: This passage has
already been published by Dr. M. JORDAN: _Das Malerbuch des L. da
Vinci, Leipzig_ 1873, p. 86. However, his reading of the text
differs from mine.]
The authorities for the study of the structure of the earth.