Leonardo, da Vinci, 1452-1519, Rigaud, J. F. (John Francis), 1742-1810, Brown, John William · London : J.B. Nichols and Son ... · leaf 248
light and shade will be close to eachother, cutting sharply at the angle; but if it beround, draw lines from the extremities of the wallsto the centre of the object, and put the darkestshade between equal angles, where the lines inter-sect upon the superficies of it; then begin to makethem lighter… … COLOURS. 141 Chap. CCXLVIII.—General Remarks on Colours. Blue and green are not simple colours in theirnature, for blue is composed of light and dark-ness ; such is the azure of the sky, \Az. perfectblack and perfect ^Ahite. Green is composed of asimple and a mixed colour, being produced by blueand…
Leonardo, da Vinci, 1452-1519 · Painting · Drawing · Perspective
Internet Archive · UCLA Library Special Collections · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-123-338.webp)
