Ruskin, John, 1819-1900 · New York: John Wiley · leaf 220
re was no occasion formore than two cross bars ; so you take at least four or five (alsorepresented at A, Fig. XLYI.), also carefully equalised, and setat equal spaces. You found, in the third place (§ viii.), thatthese bars were to be strengthened, in order to support the mainpiers; you will…
Architecture · Sculpture
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