A History of Hindu Chemistry from the Earliest Times to the Middle of the Sixteenth Century A.D. v1.c10.t7.15

v1.c10.t7.15

“I. Colour. It is a peculiar quality to be apprehended only by sight ; and abides in three substances ; earth, water, and light. It is a characteristic quality of the last ; and, in that, is white and resplended. In water it is white, but without lustre. In the primary atoms of both it is perpetual ; in their products, not so. In earth it is variable ; and seven colours are distinguished : viz. white, yellow, green, red, black, tawny (or orange) and variegated. The varieties of these seven colours are many, unenumerated. The six simple colours occur in the atoms of the earth ;