A treatise on painting : In four parts ... The whole illustrated by examples from the Italian, Venetian, Flemish, and Dutch schools (1837)
Burnet, John, 1784-1868 · London : James Carpenter · leaf 27
many of the lines so drawn on the glass,for as they all run to the point of sight, they will of necessity converge, since the spaces betweenthem diminish as they recede from the spectator. 8 AN ESSAY ON THE hand is held near the eye, it will intercept a larger space than when heldout at arms… … B Let the line a represent the spectator, and the line b represent a line ofpavement, the circular line c, which cuts through the visual rays5 as theyapproach the eye, will show the diminished ratio as the squares becomemore distant. And as they have to be represented upon a plain surface,their…
Painting
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