Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 36
s A and B, Figs. 5b and 56. 28. If a line is parallel to IT, it intersectsH at infinity; therefore, its horizontal trace isat infinity and its horizontal projection isparallel to the horizontal trace of the plane inwhich it lies, its vertical projection beingparallel to the ground line. See line… … Fig\55 Fig. 58. 20 DESCRIPTIVE GEOMETRY 29. If the traces of any plane be drawnthrough the traces of a Ime, the plane mustcontain the line ; therefore, an infinite numberof planes may be passed through any line. InFig. 59, planes iV, R, T, and S all contain lineE. 30. To pass a plane through two…
Geometry, Descriptive
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