Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 102
as at J.^, B^^ etc., a^^ 6j, etc..Fig. 158. The edges F, (7, 7, J, and K arealready shown in their true lengths in theirhorizontal projections, since the plane of theselines is parallel to H. Hence, through anypoint Z, Fig. 159, representing the apex, drawa line B^ equal in length to By With Z as… … thus definitely locating lines C and G. Theother faces are determined in like manner. The development of the cut is obtained bylaying off from /, on its corresponding ele-ment, the true lengths of the elements fromthe apex of the pyramid to the cut section,and joining the points thus obtained. The…
Geometry, Descriptive
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