[Nov., points K, and C, draw lines to meeteach other, and through these pointsdraw a curve, and it will be the ovolorequired. If B D, were less than the half of AD, the molding would be elliptical; andif B D, were equal to the half of A D,the molding would be parabolical. Inthis example B D, is… … TO DESCRIBE THE ECHINUS THE POINT CBEING ME EXTREMITY OF ONE OF THEAXIS. Join A C, and bisect it in L; drawB, L, M, C, M, perpendicular to B C,and P M, parallel to B C, with the dis-tance C M, on the point A, describe anarc cutting P M, at 0 : Produce C M,to N, and draw A, 0, N; make M P,equal to A…
Architecture
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