Martel, Charles, -1865, Geo. Rowney & Co. List of materials for oil painting, &r, Winsor & Newton. List of materials for oil painting · London : Winsor and Newton · leaf 32
wo contiguous parts of the same object viewed simultaneously, when they are unequally lighted by the same diffused light, differ from each other not only in height of tone, but also in the optical compo- sition of colour. Although this modification cannot be essentially different from the… … Place half a sheet of coloured paper upon the partition 6 of a chamber, receiving diffused daylight by a window, r, place another half sheet upon the partition a in such a man- ner, that it will be lighted directly by the diffused daylight.
Painting · Color
Internet Archive · Getty Research Institute · Public domain (published before 1931). 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-90-157.webp)