A manual for teaching model-drawing : from solid forms, the models founded on those of M. Dupuis : combined with a popular view of perspective, and adapted to the elementary instruction of classes in schools and public institutions (1843)
Williams, J. Butler, Sir, Lowry, Joseph Wilson, 1803-1879 · London : J. W. Parker · leaf 251
228 GEOMETRICAL PERSPECTIVE. … the line a b, with the vanishing point v of its parallel e v, are in the same plane. But -that part of vc which is intersected by the threads or rays of light at a and b, is the perspective of ab; the perspective a b will therefore be determined by first drawing the rays of light ae, be, and…
Drawing · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
