The American house carpenter: a treatise upon architecture, cornices and mouldings, framing, doors, windows and stairs. Together with the most important principles of practical geometry (1852)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 254
Fig. 285. in Fig. 286 obtuse, and in Fig. 287 acute. Upon the base, de-scribe the semi-circle, h s c ; from the centre, i, draw i s, at rightangles to 6 c ; from 5, draw 5 x, at right angles to e d, and from i,draw i h, at right angles to b c ; make i h equal to 5 x, and joinh and x; then, h and x…
Carpentry · Architecture
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