He, however, began, like his master Cimabue, with a perfect respect for his Byzantine models; and his paintings for a long time consisted only of repetitions of the Byzantine subjects, softened in treatment, enriched in number of figures, and enlivened in gesture. Afterwards he invented subjects of his own. The manner and degree of the changes which he at first effected could only be properly understood by actual comparison of his designs with the Byzantine originals;[6] but in default of the means of such a comparison, it may be generally stated that the innovations of Giotto consisted in the introduction, A, of gayer or lighter colours; B, of broader masses; and, C, of more careful imitation of nature than existed in the works of his predecessors. [Footnote 6: It might not, I think, be a work unworthy of the Arundel Society, to collect and engrave in outline the complete series of these Byzantine originals of the subjects of the Arena Chapel, in order to facilitate this comparison. The Greek MSS. in the British Museum would, I think, be amply sufficient; the Harleian MS. numbered 1810 alone furnishing a considerable number of subjects, and especially a Death of the Virgin, with the St. John thrown into the peculiar and violent gesture of grief afterwards adopted by Giotto in the Entombment of the Arena Chapel.] A. _Greater lightness of colour._ This was partly in compliance with a tendency which was beginning to manifest itself even before Giotto's time. Over the whole of northern Europe, the colouring of the eleventh and early twelfth centuries had been pale: in manuscripts, principally composed of pale red, green, and yellow, blue being sparingly introduced (earlier still, in the eighth and ninth centuries, the letters had often been coloured with black and yellow only). Then, in the close of the twelfth and throughout the thirteenth century, the great system of perfect colour was in use; solemn and deep; composed strictly, in all its leading masses, of the colours revealed by God from Sinai as the noblest;--blue, purple, and scarlet, with gold (other hues, chiefly green, with white and black, being used in points or small masses, to relieve the main colours). In the early part of the fourteenth century the colours begin to grow paler; about 1330 the style is already completely modified; and at the close of the fourteenth century the colour is quite pale and delicate. I have not carefully examined the colouring of early Byzantine work; but it seems always to have been comparatively dark, and in manuscripts is remarkably so; Giotto's paler colouring, therefore, though only part of the great European system, was rendered notable by its stronger contrast with the Byzantine examples.