(on dry plaster) within a subsequent phase. Vitruvius also informs us in regards to the pigments employed by the Roman artist. Black was drawn with the carbon made by burning brushwood or pine chips. Ocher was extracted from mines and served for yellow. From iconic cityscapes and architectural specifics https://andres4e2r7.blogsmine.com/30123263/fascination-about-art-paintings-expressing-nature