Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 172
158 GEOMETRICAL DRAWING AND DESIGN. … We will now take a piece of cardboard 4 x 3, and place oneof its shorter edges against the H.P. and a longer edge against the v.p. in the firstdihedral angle, withits surface perpen-dicular to eachplane (Fig. 287).Let the corner Arepresent a pointwe wish to projecton to each plane :the top edge…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
