IV. FINANCES.--The ordinary expenditure of the Roman state was not large. All the magistrates discharged their duties without pay; and the allied troops, which formed so large a portion of a Roman army, were maintained by the allies themselves. The expenses of war were defrayed by a property-tax called _Tributum_, which was usually one in a thousand, or one tenth per cent., but after the last war with Macedonia the treasury received such large sums from the provinces that the tributum was abolished. From this time the expenses of the state were almost entirely defrayed by the taxes levied in the provinces. The other revenues of the state, which bore the general name of _Vectigalia_, may be dismissed with a few words. They consisted of the rents arising from the public lands, of the customs' duties, of the taxes upon mines, salt, etc. * * * * * V. THE ARMY.--The Roman army was originally called _Legio_; and this name, which is coeval with the foundation of Rome, continued down to the latest times. The Legion was therefore not equivalent to what we call a regiment, inasmuch as it contained troops of all arms, infantry, cavalry, and, when military engines were extensively employed, artillery also. The number of soldiers who, at different periods, were contained in a legion, does not appear to have been absolutely fixed, but to have varied within moderate limits. Under Romulus the legion contained 3000 foot-soldiers. From the expulsion of the Kings until the second year of the Second Punic War the regular number may be fixed at 4000 or 4200 infantry. From the latter period until the consulship of Marius the ordinary number was from 5000 to 5200. For some centuries after Marius the numbers varied from 5000 to 6200, generally approaching to the higher limit. Amid all the variations with regard to the infantry, 300 horsemen formed the regular complement of the legion. The organization of the legion differed at different periods. 1. _First Period. Servius Tullius._--The legion of Servius is so closely connected with the Comitia Centuriata that it has already been discussed,[49] and it is only necessary to state here that it was a phalanx equipped in the Greek fashion, the front ranks being furnished with a complete suit of armor, their weapons being long spears, and their chief defense the round Argolic shield (_clipeus_).