The light-red and white improved is superior to all other colours for the first lay or ground; which should be always done with a full pencil of stiff colour, made brighter than the life, because it will sink a little in drying. The greater the body and quantity of colour, and the stiffer it is laid, the less it will sink. Every colour in drying will sink, and partake, in proportion to its body, of the colour it is laid on: therefore all the lights of the flesh, if not laid on a light ground, must consequently change a little from the life, if there is no allowance made. The shade-tint for the shadows should fall into the rose tint.,...,For, to force or keep up a brilliancy in the grounds can only be done with the whites, reds, and yellows; which method will make up for the deficiency of the white grounds:,