Roof coverings at the ridge, and a bombard-proof bastion wall
Studies for covering a roof at its ridge, with a bastion wall to resist cannon
Two construction notes with sketches. The upper drawings show ways of covering a roof at its ridge (culmen), seen from several angles. The lower sketch shows the wall of a bastion shaped so as to resist bombards.
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Covering a roof at its ridge
The upper sketches set out ways of covering a roof at its ridge (culmen). Tiled slopes and their framing are drawn from several angles.
Bastion wall to resist bombards
The lower drawing shows the wall of a bastion shaped so that it resists bombards. Its stepped, battered form is meant to withstand cannon fire.
