...In street effect indeed it is occasionallyuseful; and where the verticals below are unbroken by ornament, may beused even in the detached Elizabethan, but not when decoration has beenpermitted below... 
John Ruskin 「The Poetry of Architecture」
...Then we must break the line of theroof into different elevations, yet not making the difference great, orwe shall have visible verticals...
John Ruskin 「The Poetry of Architecture」
...Strike a b horizontally from a, c d from d; let fallthe verticals, make c f equal m n, the maximum; and draw h f...
John Ruskin 「The Poetry of Architecture」
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