Shaw's Civil architecture; being a complete theoretical and practical system of building, containing the fundamental principles of the art (1852)
Shaw, Edward · Boston, J. P. Jewett · leaf 110
SHADOWS, 69 passing through the axis, and let the angles M L F,Fig. 3, and L F M, Fig. 4, be the angles which a rayof light makes with the base of the cone, and letF N L be a section of the cone passing through theaxis, and through F L; consequently, the rays M Land F ]\I will be in that plane.…
Architecture · Building
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