A small case attracts no little attention, because it contains a single coin; and the interest does not decrease when the inscription is read: “Struck in the Philadelphia Mint, at least two thousand years ago.” The late Assayer of the Philadelphia Mint, Mr. W. E. Du Bois, under title of “The Temple Sweepers,” wrote, not long since, a valuable sketch of this coin, made in the City of Attalus Philadelphus, Asia Minor, and for which William Penn called his city, because the ancient one was a monument of “brotherly love.” Diana was the patroness of Philadelphia. “On one side, then, we have a head; not a king’s nor an emperor’s; as yet the free city had a pride and a privilege above that. It is a female head, an ideal, representing the city itself; or rather the dwellers in it, the _Demos_. Here in this head and title, we have the radix of Democracy. “This is all we can gather from the obverse. On the other side we have a larger variety: a running female figure; a dog also on the trot; a legend of some length and of more significance. “The half-clad figure is that of the goddess known to the Greeks as Artemis, to the Latins as Diana; and otherwise called Selene, Phœbe, Delia, or Cynthia. “She was the favorite divinity of the cities of Asia Minor. Once the patroness of chastity and purity. Goddess of the chase.” The legend on the obverse of this coin explains its name: “Friends of Philadelphia’s [her] Temple Sweepers.” ORIENTAL. Oriental coins are not as attractive as other varieties, though there are special coins among them which have no rival in historic importance. Antique coins from the East were usually without device, and, their legends being rudely inscribed in a dead language, proved frequently to be sealed fountains to the thirsting antiquarian. Therefore in cases marked “Oriental” the visitor is undetermined where to begin to study, and often decides to give it but little time. Those having for device the sacred peacock are from Burmah; there is, however, in the division marked “Selections” a very curious coin belonging to that country, which certainly formed a part of its earliest currency. It is a common gravel-stone, encased in a circling band of brass. COINS OF SIAM. The coins of Siam are much sought for. Some of them, known to European travelers as “bullet money,” are lumps of gold or silver, hammered by rude implements into a doubtful roundness, and a few Siamese characters stamped irregularly upon them. The sacred elephant is found on a large proportion of their money. A Siamese coin in the Cabinet, of modern date, is quite handsome in both workmanship and design. On the obverse is the sacred elephant in ponderous proportion, which delights the eyes of the devout, and the reverse presents a group of three pagodas, finely drawn. In the case marked “Selections” is a Siamese coin of gold, comparatively modern, called “Tecal,” corresponding in some respects to the “Shekel,” or “Oxen,” of biblical fame. CHINESE COINS.