Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 182
rfaces are dark; hence the edgeswhich are between the light and dark faces are the shade lines. Whenever it is more convenient, a plane parallel to the rayof light and perpendicular to H may be taken, the section foundin elevation, and the 45° triangle applied to this section. Thesame method may be…
Architecture · Building · Carpentry
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