Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 246
anesare attached to the planes of projection by paper-fasteners passingthrough folded margins ; either margin can be unfastened to allow ofthe plane being rabatted about the other trace. The student should note that the intersection of thehorizontal and vertical traces of a plane is always on… … (a) &> h (b) (C)
