When the cloth is of a dark or bad colour, there must be a strong body of colour laid all over the shadows, such as will not sink into the ground, but appear warm, and a little lighter than life, so that is may be of the same forwardness to finish, as if it had been a light ground. Therefore the business of dead-colouring is, that we leave it always in the same order for finishing, though the colour of the cloth be quite the reverse.,