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 162
141 WIRE MODELS. and the model to be of the same size. If the drawing be less than the model, say of one-half its height, the point of conver- gence will be below the drawing by a quantity equal to one-half of the difference of elevation between the eye and the model ; and so on in the same… … Left. Middle. Right. The model will appear narrower to those at the sides of the room, being drawn as a perfect square by those who may be exactly opposite. Third Position. All other things being the same, the model to be in a plane half a right angle to the last. d - n . „ d Left. Middle. Right.…
Drawing · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
