The American house-carpenter; a treatise on the art of building, and the strength of materials (1867)
Hatfield, R. G. (Robert Griffith), 1815-1879 · New York, J. Wiley · leaf 406
Fig. 358. Fig 518.—To find the shadow thrown on a column hy a squareabacus. From a and 6, {Fig. 358,) draw the rays, a c and h e,and from c, erect the perpendicular, c e ; tangical to the curve atd, draw the ray, d fi and from h, corresponding to / in the plan,draw the ray, ho; take any point…
Carpentry · Architecture
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