10. Our information respecting the financial system of the Carthaginians is extremely meagre. The following seem to have been the principal sources of the public revenue. 1. The tribute drawn from the federate cities, and their African subjects. The former paid in money, the latter for the most part in kind; this tribute was imposed at the will of the government, so that in pressing cases the taxed nations were obliged to give one half of their income. 2. The case was the same with their external provinces, particularly with Sardinia. 3. The tribute furnished by the nomad hordes, partly by those in the Regio-Syrtica, and occasionally also by those on the western side. 4. The customs, which were levied with extreme rigour, not only in Carthage, but likewise in all the colonies. 5. The products of their rich mines, particularly those of Spain. In considering the financial system of the Carthaginians, it should not be forgotten that many of the nations with whom they traded, or who served in their armies, were unacquainted with the use of money. 11. System and extent of their commerce. Their object was to secure a monopoly of the western trade; hence the practice of restricting the growth of their colonies, and of removing as much as possible all strangers from their commercial marts. Their trade was carried on partly by sea, and partly by land. Their sea trade, arising from the colonies, extended beyond the Mediterranean, certainly as far as the coasts of Britain and Guinea. Their land trade was carried on by caravans, consisting principally of the nomad tribes resident between the Syrtes: the caravans travelled eastward to Ammonium and Upper Egypt, southward to the land of the Garamantes, (Fezzan,) and even still further into the interior of Africa. SECOND PERIOD. _From the breaking out of the wars with Syracuse, to the commencement of those with Rome, B. C. 480-264._ 1. The great object of Carthaginian policy during the whole of the above period, was to subdue Sicily; this object the nation pursued with extraordinary pertinacity, often approximating to, but never obtaining, complete success. The growing power of Syracuse, which likewise aimed at the sole possession of the island, laid the foundation of that national hatred which now arose between the Sicilian Greeks and the Carthaginians. 2. First attempt, arising out of the league formed with Xerxes I. upon his irruption into Greece. Gelon of Syracuse, in a victory more decisive even than that gained by Themistocles over the Persians at Salamis, routs the Carthaginians near Himera, and compels them to accede to a disgraceful peace.