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illustration

FIGVRA VII.

C 2 Significant ink bleed-through from the verso page obscures the illustration.

A technical woodcut diagram showing a mechanical windlass system. The entire image is enclosed in a rectangular border, with a vertical scale of numbers 1 through 11 along the right-hand margin. At the top, a horizontal shaft is mounted on two upright wooden posts. The shaft carries two cylinders of different diameters: - A smaller cylinder on the left is labeled **A**. Two thick ropes are wound around it, each suspending a spherical weight; these are collectively labeled **C**. A specific point on the left side of this assembly is marked **G**. - A larger cylinder on the right is labeled **B**. A single rope, labeled **F**, is wound around it. The rope **F** descends vertically, passing through a stone-rimmed circular opening labeled **E**. At the bottom of the diagram, the rope ends in a spherical weight labeled **D**, which is submerged in a body of water. The background contains heavy ghosting of reversed text from the opposite side of the leaf.

Figura, windlass, mechanical advantage, hydraulics, cylinder

FIGURE VII.