An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 1090
Fig. IS.JO. tators being placed on the line Amn, continued as far as the voice will reach, XAX beingthe axis of the curve, and YY its parameter. This curve has two branches on ojipositesides of A, showing that if the building extend behind the speaker, or if the spectacle bevisible or the sound…
Architecture · Architects
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