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 105
84 PRACTICE WITH THE of the roof marking the gable end of a house, are said to be oblique or slanting lines. … Oblique or Slanting Lines. [The pupils to draw one or more oblique lines.] Parallel lines are lines that are, in every part through- out their length, equally distant from each other; for example, the upper and lower edges of the drawing-slates are said to be parallel lines. Parallel Parallel…
Drawing · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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