PART III

V.--THE GRINDING OF WHITE PIGMENTS. VI.--THE GRINDING OF EARTH PIGMENTS. VII.--THE OXIDE OF IRON PIGMENTS. VIII.--THE GRINDING OF BLACK PAINTS. IX.--THE GRINDING OF CHEMICAL COLOURS. X.--THE GRINDING OF PIGMENTS IN WATER. XI.--THE GRINDING OF COLOURS IN TURPENTINE, GOLD SIZE, AND SPECIAL MEDIUMS.