It must be remembered that, though the palette of the first glaziers was restricted, the proceeding of the glass-makers was so little scientific that they had no very great control over their manufacture. No two pots of glass, therefore, came out alike. Hence a great variety of shades of glass, though produced from a few simple recipes. They might by accident produce, once in a way, almost any colour. A pot of ruby sometimes turned out greenish-black. Still, the colours above mentioned predominate in Early work, and are clearly those aimed at.
Workmanship.—The glazing of an Early window is strictly a mosaic of small pieces of glass. Each separate colour in it is represented by a separate piece of glass, or several pieces.
The great white eyes, for example, of big clerestory figures are separate pieces of white glass, rimmed with lead, and held in place by connecting strips of lead, which give them often very much the appearance of spectacles ([page 40]). In work on a sufficiently large scale the hair of the head and beard are also glazed in white, or perhaps in some dark colour, distinct from the brownish-pink flesh tint peculiar to the period (same page). No large pieces of glass occur.
223. S. Kunibert, Cologne.
Upon examination the window proves to be netted over with lines of lead jointing, much of which is lost in the outlines of the design.
In large clerestory figures and the like, masses of one colour occur, but they are made up of innumerable little bits of glass, by no means all of one shade of colour; whence the richness in tone.