time of the Ptolemies. Many of these Alexandrine glasses have been preserved to us, and their beauty fully explains their superiority in the opinion of the ancients to those manufactured in Italy. Here also, after the discovery of excellent sand at Cumæ and Linternum, glass works had been established. Most of our museums possess some specimens of antique glass manufacture, in the shape of balsam or medicine bottles of white or colored glass. We also possess goblets and drinking-bottles of various shapes and sizes, made of white or common green glass; they generally taper toward the bottom, and frequently show grooves or raised points on their outer surfaces, so as to prevent the glass from slipping from the hand; urns, oinochoai, and dishes of various sizes made of glass, are of frequent occurrence. Some of these are dark blue or green, others party-colored with stripes winding round them in zigzag or in spiral lines, reminding one of mosaic patterns. Pieces of glittering glass, being most likely fragments of so-called allassontes versicolores (not to be mistaken for originally white glass which has been discolored by exposure to the weather), are not unfrequently found. We propose to name in the following pages a few of the more important specimens of antique glass-fabrication. One of the first amongst

these is the vessel known as the Barberini or Portland Vase, which was found in the sixteenth century in the sarcophagus of the so-called tomb of Severus Alexander and of his mother Julia Mammæa. It was kept in the Barberini Palace for several centuries, till it was purchased by the Duke of Portland, after whose death it was placed in the British Museum. After having been broken by the hand of a barbarian, it has fortunately been restored satisfactorily. Many reproductions of this vase in china and terra-cotta have made it known in wide circles. The mytho logical bas-reliefs have not as yet been sufficiently explained. Similar glass vases with bas-relief ornamentation occur occasionally either whole or in fragments.

EMPLOYMENT.

Many arts and inventions were in common use in Egypt for centuries before they are generally supposed to have been known; and we are now and then as much surprised to find that certain things were old 3,000 years ago, as the Egyptians would be if they could hear us talk of them as late discoveries. One of them is the use of glass, with which they were acquainted at least as early as the reign of the first Osirtasen, more than 3,800 years ago; and the process of glass-blowing is represented during his reign, in the paintings of Beni Hassan, in the same manner as it is on later monuments, in different parts of Egypt, to the time of the Persian conquest.

The form of the bottle and the use of the blow-pipe are unequivocally indicated in those subjects; and the green hue of the fused material, taken from the fire at the point of the pipe, sufficiently proves the intention of the artist. But, even if we had not this evidence of the use of glass, it would be shown by those well-known images of glazed pottery, which were common at the same period; the vitrified substance that covers them being of the same quality as glass, and containing the same ingredients fused in the same manner. And besides the many glass ornaments known to be of an earlier period is a bead, found at Thebes, bearing the name of a Pharaoh who lived about 1450 B. C., the specific gravity of which, 25° 23', is precisely the same as of crown glass, now manufactured in England.

Glass bottles are even met with on monuments of the 4th dynasty, dating long before the Osirtasens, or more than 4,000 years ago; the transparent substance shows the red wine they contained; and this kind of bottle is represented in the same manner among the offerings to the gods, and at the fetes of individuals, wherever wine was introduced, from the earliest to the latest times. Bottles, and other objects of glass, are commonly found in the tombs; and though they have no kings' names or dates inscribed upon them (glass being seldom used for such a purpose), no doubt exists of their great antiquity; and we may consider it a fortunate chance that has preserved one bead with the name of a sovereign of the 18th dynasty. Nor is it necessary to point out how illogical is the inference that, because other kinds of glass have not been found bearing a king's name, they were not made in Egypt, at, or even before, the same early period.

Pliny ascribes the discovery of glass to some Phoenician sailors accidently lighting a fire on the sea-shore; but if an effect of chance, the secret is more likely to have been arrived at in Egypt, where natron (or subcarbonate of soda) abounded, than by the sea side; and if the Phoenicians really were the first to discover it on the Syrian coast, this would prove their migration from the Persian Gulf to have happened at a very remote period. Glass was certainly one of the great exports of the Phoenicians; who traded in beads, bottles, and other objects of that material, as well as various manufactures, made either in their own or in other countries; but Egypt was always famed for its manufacture; a peculiar kind of earth was found near Alexandria, without which, Strabo says, "it was impossible to make certain kinds of glass of many colors, and of a brilliant quality," and some vases, presented by an Egyptian priest to the Emperor Hadrian, were considered so curious and valuable that they were only used on grand occasions.

COLORED GLASS VESSELS.

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Glass bottles, of various colors, were eagerly bought from Egypt, and exported into other countries; and the manufacture as well as the patterns of many of those found in Greece, Etruria, and Rome, show that they were of Egyptian work; and though imitated in Italy and Greece, the original art was borrowed from the workmen of the Nile.

Such, too, was their skill in making glass, and in the mode of staining it of various hues, that they counterfeited with success the emerald, the amethyst, and other precious stones; and even arrived at an excellence in the art of introducing numerous colors into the same vase, to which our European workmen, in spite of their improvements in many branches of this manufacture, are still unable to attain. A few years ago the glass-makers of Venice made several attempts to imitate the variety of colors found in antique cups; but as the component parts were of different densities, they did not all cool, or set, at the same rapidity, and the vase was unsound. And it is only by making an inner foundation of one color, to which those of the outer surface are afterwards added, that they have been able to produce their many-colored vases; some of which were sent to the Great Exhibition of 1851.

Not so the Egyptians, who combined all the colors they required in the same cup, without the interior lining: those which had it being of inferior and cheaper quality. They had even the secret of introducing gold between two surfaces of glass; and in their bottles, a gold band alternates within a set of blue, green, and other colors. Another curious process was also common in Egypt in early times, more than 3,000 years ago, which has only just been attempted at Venice; whereby the pattern on the surface was made to pass in right lines directly through the substance; so that if any number of horizontal sections were made through it, each one would have the same device on its upper and under surface. It is in fact a Mosaic in glass; made by fusing together

as many delicate rods of an opaque glass of the color required for the picture, in the same manner as the woods in Tunbridge-ware are glued together, to form a larger and coarser pattern. The skill required in this exquisite work is not only shown by the art itself, but the fineness of the design; for some of the feathers of

birds, and other details, are only to be made out with a lens; which means of magnifying was evidently used in Egypt, when this Mosaic glass was manufactured. Indeed, the discovery of a lens of crystal by Mr. Layard, at Nimroud, satisfactorily proves its use at an early period in Assyria; and we may conclude that it was neither a recent discovery there, nor confined to that country.

Winkleman is of opinion that "the ancients carried the art