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 75
ts in reality and when looking at their picture. In the first instance all the objects seen in one sweep of the eye form a panorama projected on the concave surface of a sphere or cy¬ linder if the angle subtended by its width be smaU, whereas in the other it is the projection on a plane. It would… … from one point of view at which each observer would have to place his eye. The figure will represent the two cases. . To return again to our drawing, the first thing, after having looked round us, is to choose the
Perspective · Drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
