Leonardo, da Vinci, 1452-1519, Rigaud, J. F. (John Francis), 1742-1810, Brown, John William · London : J.B. Nichols and Son ... · leaf 322
so as to appearwith the same relief, though the lines, the Hghts,shades, and colour, be perfectly imitated.* It isproved thus: let the eyes A B, look at the objectC, with the concurrence of both the central visualrays A C and B C. I say, that the sides of thevisual angles (which contain these… … reason that object C becomes as it were transpa-rent, according to the definition of transparent * See chap, cxjcii. MISCELLANEOUS OBSERVATIONS. 215 bodies, behind which nothing is hidden. Thiscannot happen if an object were seen with one eyeonly, provided it be larger than the eye. Fromall that…
Leonardo, da Vinci, 1452-1519 · Painting · Drawing · Perspective
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![An illustration from Essai de physique, par Mr. Pierre van Musschenbroek ... avec une description de nouvelles sortes de machines pneumatiques, et un recueil d'expériences par Mr. J. v[an] M[usschenbroek] Traduit du hollandois par Mr. Pierre Massuet .. (1751)](https://img.insideoutlibrary.com/img/200/ia-essaidephysiquep02muss-108-29.webp)
