Of this fourth period we might indeed point to many examples. One must suffice. It is the beautiful Greek Psalter, now at Paris (MS., p. 139), containing lovely examples of antique design, including remarkable personifications or allegorical figures. In this MS. is one of the most graceful personifications ever painted, that of _Night_, with her veil of gauze studded with stars floating overhead. The seven pictures from the Life of David are among the best ever put into a MS. But personification is carried to an extreme. Thus the Red Sea, the Jordan, Rivers, Mountains, Night, Dawn, etc., are all represented as persons. The drawings are really beautiful and the illuminated initials and general ornament in good taste. For other examples the reader may consult the British Museum Cat. of Addit. MSS., 1841-5, p. 87; also Du Sommerard, _Les Arts au Moyen-âge_, tom. v., 1846, pp. 107, 162-8, and album, 2e sér. pl. xxix., 8e sér. pl. xii.-xvi. It is noticeable in these Byzantine pictures that while the figure-painting is often really excellent, the design skilful, and the pose natural, the landscape, trees, etc., are quite symbolic and fanciful. The painters seem to have been utterly ignorant of perspective. Buildings, too, without any regard to relative proportion, are coloured merely as parts of a colour scheme. They are pink, pale green, yellow, violet, blue, just to please the eye. That the painter had a system of colour-harmony is plain, but he paid no regard to the facts of city life, unless, indeed, it was the practice of the mediæval Byzantines to paint the outside of their houses in this truly brilliant style. Possibly they did so; we have similar things in Italy even nowadays. No doubt the French illuminators of the thirteenth and fourteenth centuries drew from these sources both their perspective and their architectural colouring. As for ornamental illumination, the principal method of decoration was a square heading,[10] perhaps including a semicircular arch sweeping over several arcades, the corners and wall-space being occupied either with arabesque patterns, showing them to be after the time of Leo III., or with scrolls of line-ornament enriched with acanthus foliages. Under this the scribe has placed his title. [10] It has been thought to represent the Greek π, and to mean πύλη, a gate or door. [Illustration: CARVED IVORY COVER LATIN PSALTER OF MELLISENDA 12TH CENT. _Brit. Mus. Egert. MS. 1139_] [Illustration: CODEX AURENS (GOLDEN GOSPELS OF ATHELSTAN) C. 835 _Brit. Mus. Harl. MS. 2788, fol. 176_]