In Athens and Rome the smallest silver coins were very minute indeed. The Athenians possessed separate silver coins, running from the piece of four drachmæ, in value about 3_s._ 4_d._, down to the quarter of an obolus, which was less in value than our halfpenny. The silver coin responding to this value was very minute, weighing less than three grains. There were Roman silver coins even smaller than this; probably some existed of no more than 1½ grain in weight, or considerably less than one quarter of the size of our silver pence. But the great inconvenience of such small coins led to the striking of corresponding values in bronze, and these “silver scales,” for they had just the appearance of such, went out of use. A gold coinage in Greece probably did not exist before the age of Alexander the Great, though their near neighbors in Asia undoubtedly possessed gold money from an early age; and pieces of this became current in Greece. The few remaining gold coins of Greece appear not to have been struck before the period mentioned above. But on the rise of the Macedonian empire gold coins became plentiful through the country. Gold was first coined in Rome B. C. 207, sixty years after the commencement of their silver currency. The common size of their pieces was probably about the same with that of our sovereign; but some existed in size only one quarter of our half sovereigns, and representing about 2_s._ 6_d._ in silver. It is necessary in this place to give some account of the bronze of the ancients, a compound fulfilling the most important uses in Greece and Rome. “Money, vases, and utensils of all sorts, whether for domestic or sacrificial purposes, ornaments, arms offensive and defensive, furniture, tablets for inscriptions, musical instruments, and, indeed, every object to which it could be applied, was made of bronze.”[3] Zinc, like steel, was unknown to the ancients. The discovery of a case of surgical instruments in Pompeii, in which the lancets are made of bronze, almost demonstrates to a certainty a want of the art of making steel, and the same conclusion is supported by the existing remains of Greek and Roman weapons. Their bronze was composed of copper and tin, and contained about seven parts of the former to one of the latter. The Corinthian bronze was most valued for the purposes of art, and there were certain varieties of this, into the composition of which silver and even gold were introduced, so as to produce a white or yellow shade in the color. The Delians and Æginetans also excelled in the manufacture of bronze. The ancients cast metals in moulds, worked them into plates with the hammer, or engraved and embossed them elaborately, as in the manufacture of their metal vases. Their colossal statues, of which the one at Rhodes, 100 feet high, is the most famous example, were mostly cast of bronze.