Association, possesses several of these beads. This indefatigable antiquary has, likewise, some fragments of Roman Glass, dug up in the city of London; they have projecting pillars outside, while the interior is not indented, but smooth; these pillars have been formed, partly by moulding, and partly by rapid rotation, increasing the projection on the principle of centrifugal force: the remainder are portions of a vase-shaped basin of elegant form. (See PLATE 3, figs. 1, 2.) Several other Roman specimens of this kind are to be seen in the Museum at Boulogne-sur-Mer. English Glass-makers, until this discovery, considered the patent pillar, (as it is called,) to be a modern invention. A Roman vase thus made is to be seen entire at the Polytechnic Institution, in Regent-street; it is a complete specimen of pillar moulding, but the pillars are very much less in width and projection than some of those at Boulogne, and in Mr. Roach Smith's collection. (See PLATE 5, fig. 2.)

The Aggry beads of Ashantee, as involving points of manufacture analogous with the above specimens, may be noted here. Mr. Bowditch, during his visit to that country, procured some of these Aggry beads, which the natives invariable declare to be "found in the Dinkira, Akim, Warsaw, Ashanta, and Fantee countries, the greatest number in the former, being the richer in gold. They say they are directed to dig for them, by a spiral vapour issuing from the ground, and that they rarely lie near the surface. Those of inferior beauty frequently fetch a large price, from having been worn by some royal or eminent character." Dr. Leyden describes the "Aigris, a stone of a greenish blue colour, supposed to be a species of jasper, small perforated pieces of which are valued at their weight in gold, and stated to be used as for money."

Dr. Leyden, however, considers this to refer to the Popo bead;