Sicilian states, although, from the circumstance that many of these coins bear marks of value, at first sight it might seem far otherwise. Thus at Agrigentum in the period preceding 415 B.C. the copper litra weighed about 750 grs., between 415 B.C. and 406 B.C. 613 grs., and from 340 B.C. to 287 B.C. it was about 536 grs. only. At Himera between 472 B.C. and 415 B.C. it was about 990 grs., but within the same period it fell to 200 grs., whilst at Camarina between 415 B.C. and 405 B.C. it was about 221 grs. Not only therefore is it futile to attempt any statement of the reduction of the litra in Sicily in general, but also to arrive at any sound approximation to its full original weight, as far as the weight of the copper coins is concerned. On the other hand, any calculation based on the relative values of copper and silver has been up to the present unsatisfactory, owing to the great uncertainty which still prevails, Mommsen making the relation in the earlier period stand as 288:1, whilst Mr Soutzo thinks it never can have been higher than 120:1. The latter view I have already proved to be untenable when we apply the test of the value of cattle, and it was made probable that in the 5th century B.C. silver was to copper as 300:1. From this it will be possible to show that the full weight of the copper litra was originally about 4900 grs. Any effort to determine the original weight of the copper litra by a new method calls for a merciful consideration, even though it too may fail. Whilst the original weight of the litra is still a matter of doubt, we are fortunately completely acquainted with the method of its subdivisions. The litra was divided into 12 parts called Ungiae, Unciae or Onciae, a name which is no other than the Latin _Uncia_. This at once brings us face to face with the Roman copper system, where the _as_ was the higher unit, and was divided into 12 unciae (ounces). But there are other striking coincidences of nomenclature. Thus ⅙ of the _as_ was called _sextans_; one-sixth of the litra is called _Hexâs_ (ἑξᾶς), and the _Triens_ and _Quadrans_ are paralleled by the _trias_ (τριᾶς) and _tetras_ (τετρᾶς) although there is a difference in the application of these terms. Then the five-twelfths of the _as_ is _Quincunx_; the same fraction of the litra is _Pentonkion_ (πετόγκιον). We have plainly therefore a common Italo-Sicilian copper system, the terms of which were adopted and Graecised by the settlers in Italy and Sicily.