. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. ility assignable towalls. I. One of uiidoiib<^ed stability ; 11. A mean b^tucen the last; and the III. Theleast thickness which they ought to ]50ssess. 1504. Jhe first case is that in which from many examples we find the thickness equal toone eighth part of the height: a mean stability is obtained when the thickness is one of the lieight; and the minimum of stability when one twelfth of its height. We are,liowever, to recollect that in
. An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth. ility assignable towalls. I. One of uiidoiib<^ed stability ; 11. A mean b^tucen the last; and the III. Theleast thickness which they ought to ]50ssess. 1504. Jhe first case is that in which from many examples we find the thickness equal toone eighth part of the height: a mean stability is obtained when the thickness is one of the lieight; and the minimum of stability when one twelfth of its height. We are,liowever, to recollect that in most buildings one wail becomes connected with another, sothat stability may be obtained by considering thein otherwise than as indejiendent walls. 1505. That some miy be formed of the difference between a wall entirely isolatedand one connected with one or two others at right angles, we here give _/ii;s. 591, 592,a;id 593. It is obvious that in the first case (. 59 1.) a wall acted upon by the horizontalforce MN, will iiave no resistance but from the breadth of its base; that in the second 398 THEORY OF ARCIIITECTLUE. (I. Kig. 591 Fig. A92. .^iisu (fih 592.) the wall GV is opposed to tlie force MN. so that only the triangle of illlIF can be detached; lastly, in fiy. 593. the force MN would only be effective against
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