Perspective, or, The art of drawing what one sees : explained and adapted to the use of those sketching from nature (1872)
Collins, W. H. (William Henry) · London : Longmans, Green · leaf 43
rter image than the other. An image appears to ns big or little according to the Pig. 10. angle under which it is seen. And the distant figure is said, in the language of mathematics, to ‘ subtend ’ a lesser angle than the near one, a e b being less than c e d. If the tops of the two posts were… … be long enough, the two edges would vanish in a point. If there should have been tiers of bricks
Perspective · Drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
