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 181
160 PRACTICE WITH THE Model. The Hrptagon. A right-lined figure, composed of seven equal sides. To be presented to the class, always in a vertical plane, and with one of its sides horizontal. The dotted lines indicate the lines of construction, to which the teacher will refer. At right angles to… … Ahove the level of the eye, and viewed obliquely. The perspective representations of the parallel lines, if pro- duced far enough, should meet at one point.
Drawing · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
