River erosion and petrification on the Bisarno; a plant study
Measured lengths of broken embankment, with a note on silt turning to stone
Folio 274r carries a short inverted note on the erosive work of running water and the Arno: which overflow most hollows out its bed, the measured lengths of a broken embankment (640 braccia broken, 150 remaining with its mill) and 300 braccia of the Bisarno washed away in four years, ending with the notion that bursting silt later forms veins through petrification. Folio 275v is dominated by a faint study of a tall plant and carries a technical figure with letters and numbers. Both leaves are very faint; a later ownership inscription appears on folio 274r, and further untranscribed jottings are present.
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The overflow that most hollows its bed
An inverted note observes that among the overflows it is a particular water that most hollows out its own bed.
Embankment and mill broken by the river
Measured lengths record 640 braccia of broken wall and 150 braccia of wall remaining with its mill, and that the river has broken 300 braccia of the Bisarno in four years.
Bursting silt forming veins by petrification
The note closes with the idea that the bursting of the mud afterwards makes the veins through its petrification.
A tall plant study
The left leaf is dominated by a faint drawing of a tall plant with a bulbous flower or seed-head and trailing leaves, accompanied by a technical figure bearing letters and numbers.