Complete perspective course : comprising the elementary and advanced stages of perspective, the projection of shadows and reflections, with exercises in theory and practice, also the practical application of perspective (1900)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan and co. · leaf 140
meet in Y.P.s on the H.L. If we were to make a drawing of Fig. 85, and crease tliepaper at the G.L, so ^that the plan would lieon a horizontal plane,and the perspectivedrawing on a verticalplane, as shown in Fig.86, stretched threadsrunning from the pointson plan through thecorresponding points… … Fis?. 86 COMPLETE PERSPECTIVE COURSE
Perspective
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