Two maxims: the bright seen from afar, the heavy part leads motion
A line continuing the recto's light theme, and a 'de ponderibus' rule beside a bow shooting an arrow
Two lines of text, invisible before the leaf was restored. The first continues the recto's theme of luminosity: the more luminous a thing is, the farther off it can be seen. The second, set beside a small drawing of a bow loosing an arrow, restates a much-repeated maxim of the medieval 'de ponderibus' tradition, that the heaviest part of a body moving with impetus is the guide of its movement.
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The brighter a thing, the farther it is seen
The first line states that the thing which is more luminous will be seen from a more distant place, extending the recto's discussion of light and visibility.
The heavy part guides the moving body
The second line holds that the heaviest part of any body moving with impetus is the guide of its motion, a principle of the 'de ponderibus' treatises. It is drawn beside a small sketch of a bow discharging an arrow.