Hatton, Richard G · London, Chapman & Hall ld. · leaf 165
Eve Fia. 99.—A cube of 7 feet standing on an inclined plane perpendicularto the picture. Its height is found by the chess-boards of otherinclined planes perpendicular to picture, and also perpendicular tothe plane of the base. Perpendiculars to the Six Planes 131 In Fig. 101, the ascending plane is…
Perspective · Drawing
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