Leonardo, da Vinci, 1452-1519 · London : Pinted for J. Senex ... and W. Taylor ... · leaf 244
•, we having elfewhcre proved, that naluminous Body has ever iccn the Shadow of anyBody illuminated by it ^ Tis Obvious, that theShadow of the Heavens, -projected on theWhite Wall, will appear Azure; and further,,that the Ground of that Shadow, being illuminedby the Sun, win appear Reddifh, in… … ^Leonardo da ViNcr. 167 fcen in any other part of the Painting : Thefame thine, may be obferved of Dull, Fog, andother like Bodies- which ought always to appearobfeure, when you are placed between them andthe Sun. Smoke is more tranfparcnt, and of a Colourlefs deep towards the Extremes of its…
Painting
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