"It is true that the cautious reformer adopted into his new system of government the old names and the offices which had come down from republican times, with the exception of the censorship and the dictatorship, which last had long been obsolete. But these were intended from the outset to lead but a phantom existence and to take no part in the great task of imperial administration. Augustus drew his own body of officials from the knightly class, and under the unpretentious titles of procurator and præfect practically committed the whole administration of the empire to their hands, reserving, apart from certain distinguished sinecures in Rome, and Italy, for the senators the præfecture of the city, all the great governorships except Egypt, and the highest commands in the army. The handsome salaries--varying in the later days of the empire from £600 to £3,600 ($3,000 to $18,000)--and the great influence attached to the procuratorial career, which opened the way to the lofty positions of præfect of Egypt and commander of the prætorian guards at Rome, rendered the service very desirable and highly esteemed. "While the high-born magistrates of the republic entered upon their one year's tenure of office without any training whatsoever, and were, of course, obliged to rely upon the knowledge and trustworthiness of the permanent staff of clerks, recorders and cashiers in their department, there grew up under the empire a professional class of government officials who, schooled by years of experience and continuance in office and supported by a numerous staff recruited from the imperial freedmen and slaves, were in a position to cope with the requirements of a world-wide empire. These procurators, some as governors-in-chief of the smaller imperial provinces, some as assistants to the governors of the greater, watched over the interests of the public exchequer and the emperor's private property, or looked after the imperial buildings and aqueducts, the imperial games, the mint, the corn supply of Rome, and the alimentary institutions, the legacies left to the emperors, their castles and demesnes in Italy and abroad,--in short, everything that fell within the vast and ever widening sphere of imperial government. Meanwhile the exchequer of the senate dwindled and dwindled, till it finally came to be merely the exchequer of the city of Rome."