Ruskin, John, 1819-1900 · New York, J. Wiley · leaf 218
■MOM 200 XVIII. PROTECTION OF APERTURE. construction. quiring less masonry and shorter roofing; and when the archbecomes so large as to cause a heavy lateral thrust, it may be-come necessary to provide for its farther safety by pinnacles, c. This last is the perfect type of aperture protection.…
Architecture
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