In this use of gold, in thin delicate lines which strengthen the drawing, we have a very distinct copyism of another quite different art, that of the worker in enamelled gold, an art which was practised in Constantinople with wonderful taste and skill. The kind of enamel which was so often imitated by the manuscript illuminator is now called cloisonné enamel from the thin slips of gold or _cloisons_ which separate one colour from another, and mark out the chief lines of the design. So closely did many of the illuminators copy designs in this cloisonné that very often one sees manuscript miniatures which look at first sight as if they were actual pieces of enamel. In other ways too the art of the goldsmith had considerable influence on Byzantine illuminations; and the designs of the mosaic-worker and the miniaturist acted and reacted upon each other, so that we sometimes see an elaborate painting in a book which looks like a design for a wall-mosaic; or again the gorgeous glass mosaics with gold grounds on the vaults and walls of Byzantine churches frequently look like magnified leaves cut out of some gorgeously illuminated manuscript. _The pure Byzantine style._ It was only for a short period that manuscripts were executed at Constantinople which, in their miniatures, were links between the classical and the Byzantine style. Thus we find that the famous Greek manuscript of _Cosmas Indopleustes_ in the Vatican library (No. 699) is of the pure and fully developed Byzantine style, with its formal attitudes, its rigid drapery, its lengthy proportions of figure, and stiff monotonous schemes of composition, such as grew to be accepted as the one sacred style, and as such has been preserved by the Eastern Church down to the present century. This manuscript of Cosmas is certainly a work of Justinian's time, the first half of the sixth century A.D., though it has usually been attributed to the ninth century; it really is but little later than the Dioscorides of Juliana, and yet it has but little trace of the older classical style, either in drawing, composition or colour[35]. The Laurentian library in Florence possesses a manuscript of the _Gospels_ which, though poor as a work of art, has several points of special interest. A contemporary note in the _codex_ records that it was written in the year 586 by the Priest Rabula in the Monastery of St John at Zagba in Mesopotamia. _Early crucifixion._ Its illuminations are weak in drawing, coarse in execution and harsh in colouring, but one of them, representing the Crucifixion of our Lord between the two thieves, is noticeable as being the earliest known example of this subject. The primitive Christian Church avoided scenes representing Christ's Death and Passion, preferring to suggest them only by means of types and symbols taken from Old Testament History.