The Da Vinci Notebooks at sacred-texts.com
The lake of Pusiano flows into the lake of Segrino 555 and of Annone and of Sala. The lake of Annone is 22 braccia higher at the surface of its water than the surface of the water of the lake of Lecco, and the lake of Pusiano is 20 braccia higher than the lake of Annone, which added to the afore said 22 braccia make 42 braccia and this is the greatest height of the surface of the lake of Pusiano above the surface of the lake of Lecco.
239:555 3: The statement about the lake Segrino is incorrect; it is situated in the Valle Assina, above the lake of Pusiano.
239:556 : This text has in the original a slight sketch to illustrate it.