On simple, composite, and decomposed local motion
Diagrams distinguishing kinds of motion produced by one quantity in one time
Folio 53 verso opens a study of local motion, headed by the statement that a single quantity moving in a single span of time can yield simple, composite and decomposed motion. Ruled diagrams to the right, labelled a, b and a, b, c, chart these cases, with the phrases 'simple motion' and 'decomposed motion' written beside them. The survey map of the previous leaf shows faintly through the thin paper.
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Simple, composite and decomposed motion in one time
The heading defines the topic: local motion, simple, composite and decomposed, all produced by one and the same quantity carried out in one and the same time. The stepped and ruled diagrams beside it, labelled a, b, c, illustrate the distinction, with two figures marked 'simple motion' and a lower one marked 'decomposed motion'.