Fig. 1. This fragment, in the possession of W. R. Hamilton, Esq., seems to be the ne plus ultra of the chemical and manipulatory power of the ancient Glass-maker. It consists of no fewer than five layers or strata of Glass, originally forming a portion of a vase. The interior layer is the usual blue, sapphire colour; and the green and red coatings are similar to those analyzed by Klaproth. The colours of the numerous strata (see the section) are separated from and contrasted with each other by layers of white enamel, skilfully arranged by some eminent artist of the school of Greece, for the embossment of his cameo subject, as well as for blending them into each other artistically. The subject—a female reposing upon a settee—is executed in the very highest style of art, and is a fine specimen of gem engraving. The drawing is the size of the fragment.

Fig. 2. A Patera of ancient Grecian or Roman Glass, decorated with the moulded Roman pillar, of light green tint, but slightly opalescent, and iridescent through decomposition of surface. It is in the London Polytechnic Institution, and was found in a tomb, in one of the Grecian islands.

Figs. 3 and 4 are green Osorian vases in the British Museum. The largest is about fifteen inches high, in excellent preservation; and both are beautiful specimens of the art,—especially the handles, which show the perfection of the ancients in the art of Glass-making. The material is common, and resembles