Ruskin, John, 1819-1900 · New York, J. Wiley · leaf 149
hese, but we will takethese as sufficient representees of all. Then a is the low arch,h the central or pure arch, c the high arch, and the rajs of thesun would have drawn for us their voissoirs. § xn. We will take these several arches successively, andfixing the top of each accurately, draw two…
Architecture
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