In addition to the black outline and the dark blue ground, the colours employed are white, light blue, yellow, and red. The red now has everywhere the appearance of green, but where this colour is thickened, as for instance where drops have trickled down, a core of brilliant red is found coated with green, which must be the result of a superficial change of colour that has occurred during the course of ages. We have also some large pieces of enamel from ancient breakages in which we can observe this same fact. The green coating extends to a depth of 2 to 3 millimetres, which in the ordinary enamel on the brick would entirely supersede the original red colouring. This is an important point, because the manufacture of opaque red enamel has been attended with considerable difficulty even in recent times, while transparent red glaze is made with ease at the present time. Thus in forming a judgment on the sense of colour of the ancient Babylonian it must not be forgotten that this fine red was included in their scheme. We can well imagine a red-haired, but not a green-haired lion (see above, p. 28). Beside the decoration already described we find other designs which belonged to a floral frieze. This was undoubtedly placed on the façade of the throne-room, but nothing definite has so far been found to show its exact position. It must always be remembered that an exhaustive study of these bricks and of other similar objects found in Babylon requires far more space than our Expedition House can afford; the things must be spread out, and that cannot be done here. We have always to be careful to pack away the finds as quickly as possible, and that renders them inaccessible for any further comparison, however desirable it may be. The conditions of our work are by no means easy, and in dealing with small objects such as terra-cottas, cylinder seals, implements, ceramics and the like, I have experienced serious and unavoidable difficulties.