Palladio, Andrea, 1508-1580, Le Muet, Pierre, 1591-1669, Richards, Godfrey, Pope, William · London : Printed for A. Bettesworth & C. Hitch, and J. Osborn ... : S. Birt ... : and J. Hodges ... · leaf 190
Stepsfrom the Angle, turning to a Semi-circle, which will be Fourto 4 of a Circle. And to Stair-Cafes from nine to ten Foot broad, you muftput ten Steps to a Semi-circle. If they have eighteen Foot, more orlefs,you may make twelve.Steps to a Semi-circle. You muft take heed that the Landing-place of… … ifs
Architecture
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