Labels:text | screenshot | font OCR: Only the top few lines of this page concern water, but they are enough to tie Leonardo's concerns directly with the body of the earth. With respect to the origin of subterranean rivers, Leonardo asks what causes the greatest variation in the tides of the sea. Leonardo presents a brief summary of his thoughts on the circulation of water in the body of the earth, covering much of the same territory as he does in discussions elsewhere in the codex: "A spring may be seen in Sicily which at certain times of the year discharges
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