[36] As vice and corruption advanced among the Romans, their money became debased and adulterated. Thus Pliny, xxxiii. 3, relates, that "Livius Drusus during his tribuneship, mixed an eighth part of brass with the silver coin;" and ibid. 9, "that Antony the triumvir mixed iron with the denarius: that some coined base metal, others diminished the pieces, and hence it became an art to prove the goodness of the denarii." One precaution for this purpose was cutting the edges like the teeth of a saw, by which means it was seen whether the metal was the same quite through, or was only plated. These were the Serrati, or serrated Denarii. The Bigati were those stamped with the figure of a chariot drawn by two horses, as were the Quadrigati with a chariot and four horses. These were old coin, of purer silver than those of the emperors. Hence the preference of the Germans for certain kinds of species was founded on their apprehension of being cheated with false money. [37] The Romans had the same predilection for silver coin, and probably on the same account originally. Pliny, in the place above cited, expresses his surprise that "the Roman people had always imposed a tribute in silver on conquered nations; as at the end of the second Punic war, when they demanded an annual payment in silver for fifty years, without any gold." [38] Iron was in great abundance in the bowels of the earth; but this barbarous people had neither patience, skill, nor industry to dig and work it. Besides, they made use of weapons of stone, great numbers of which are found in ancient tombs and barrows. [39] This is supposed to take its name from _pfriem_ or _priem_, the point of a weapon. Afterwards, when iron grew more plentiful, the Germans chiefly used swords. [40] It appears, however, from Tacitus's Annals, ii. 14, that the length of these spears rendered them unmanageable in an engagement among trees and bushes. [41] Notwithstanding the manner of fighting is so much changed in modern times, the arms of the ancients are still in use. We, as well as they, have two kinds of swords, the sharp-pointed, and edged (small sword and sabre). The broad lance subsisted till lately in the halberd; the spear and framea in the long pike and spontoon; the missile weapons in the war hatchet, or North American tomahawk. There are, besides, found in the old German barrows, perforated stone balls, which they threw by means of thongs passed through them. [42] _Nudi_. The Latin nudus, like the Greek _gemnos_, does not point out a person devoid of all clothing, but merely one without an upper garment--clad merely in a vest or tunic, and that perhaps a short one.--_White_. [43] This decoration at first denoted the valor, afterwards the nobility, of the bearer; and in process of time gave origin to the armorial ensigns so famous in the ages of chivalry. The shields of the private men were simply colored; those of the chieftains had the figures of animals painted on them.