Labels:text | screenshot | font OCR: A note at the top of this page refers to Aristotle's student Theophrastus's On the Flow and Ebb, on Whirlpools and Water. A Leonardo had access to Theophrastus's writings on the history of plants and on characters-the first edition was published in 1483, with additional editions in 1495 and 1498. One of the central problems in this codex involves the development of a system of control over the natural movements of rivers and the changes that floods, obstacles, or time may cause in their channels. This page has some of
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