Motion through acute and right angles
A semicircular construction of radiating lines and concentric arcs
A large semicircular diagram fills the fragment: a horizontal baseline with a small circled centre from which straight lines fan out to meet a series of concentric arcs, together with a triangle set against the arcs at the left. A line of mirror-writing across the top supplies the only caption, titling the figure as motion made through acute and right angles. No further transcribed text accompanies the drawing.
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Semicircular fan of angles and concentric arcs
From a small circled point on the baseline, straight lines radiate upward and outward, dividing a quarter of the semicircle into a fan of angles that cut across several concentric arcs. A triangle stands against the arcs at the left, so the figure reads as a graduated construction of angles and their arcs.
Motion made through acute and right angles
The caption titles the construction as motion made through acute and right angles, framing the fan of radiating lines and arcs as a study of how a moving line or body passes through successively acute and right angles about the central point.