Ruskin, John, 1819-1900 · New York, J. Wiley · leaf 206
n traceries, as wellas iron pillars, iron churches, and iron steeples. But I have, inthe Seven Lamps, given reasons for not considering suchstructures as architecture at all. The window-bars must, therefore, be of stone, and of stone only. § v. The purpose of the window being always to let in as… … Let it be required to support the breadth of glass, a 5, Fig,XLV. The tendency of theglass sustaining any force, as ofwind from without, is to bendinto an arch inwards, in thedotted line, and break in thecentre. It is to be supported,therefore, by the bar put in itscentre, c. But this central bar,…
Architecture
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