Colours are either1863 sombre or florid, these qualities arising either from the nature, of the substances or their mode of combination. The florid colours are those which the employer supplies1864 to the painter at his own expense; minium,1865 namely, armenium, cinnabaris,1866 chrysocolla,1867 indicum, and purpurissum. The others are the sombre colours. Taking both kinds together, some are native colours, and others are artificial. Sinopis, rubrica, parætonium, melinum, eretria and orpiment, are native colours. The others are artificial, more particularly those described by us when speaking of metals; in addition to which there are, among the more common colours, ochra, usta or burnt ceruse, sandarach, sandyx, syricum, and atramentum.