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, b s c ; from the centre, i, draw i s, at rightangles to b c ; from s, draw 5 #, at right angles to e d, and from i,draw i h, at right angles to b c ; make i h equal to 5 ar, and joinh and x ; then, h and… … Fig. 286.
Carpentry · Architecture
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