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 284
Fig. 327. Fig. 3-i8, 425.— To find the shadow thrown on a column by a squareabacus. From a and b, {Fig. 327,) draw the rays, a c and b e,and from c, erect the perpendicular, c e ; tangical to the curve atc/, draw the ray, d f, and from It, corresponding to / in the plan,draw the ray, h o; take any…
Carpentry · Architecture
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