*III. The senatorial provinces.* In the early principate the senatorial provinces were administered by appointees of the Senate, all of whom now bore the title of proconsul, assisted as in former days by quaestors. However, only the proconsul of Africa was at the same time commander of a provincial garrison, and his command was transferred to the imperial governor of Numidia by Caligula. Even in the time of Augustus the imperial procurators had appeared in the senatorial provinces in charge of the revenues which were at the disposal of the princeps, and, before the close of the third century they were in complete control of the financial administration of these provinces. But long before this, by the opening of the second century, the princeps had usurped the Senate's privilege of appointing the proconsuls. The result was that by the close of the principate all the provinces without distinction were equally under imperial control.
*Restriction of Senate's elective powers.* It was Tiberius who transferred to the Senate the electoral functions of the Assembly but he, as Augustus before him, limited the Senate's freedom of action by the recommendation of imperial candidates for the lower magistracies. From the time of Nero the consulship also was regularly filled by nominees of the emperors. The custom of appointing several successive consular pairs in the course of each year, each pair functioning for two or four months, greatly weakened the influence of the consulate, while it enabled the emperors to gratify the ambitions of a larger number of candidates for that office.
*Loss of legislative functions.* The rapid disappearance of the Assembly resulted in the transfer of its sovereign legislative powers to the Senate. The decrees of the Senate thus acquired the validity of laws and after the time of Nerva comitial legislation completely ceased. However, the influence of the princeps encroached more and more upon the legislative freedom of the Senate until in the time of the Severi the senatorial decrees were merely proclamations of the princeps (_orationes principis_) which were read to the Senate and approved by it. Furthermore, the princeps developed independent legislative power and by the middle of the second century the ordinances or constitutions of the princeps had acquired the force of law. Early in the third century legislation of this type altogether superseded the senatorial decrees. The imperial constitutions included edicts, _decreta_, or judicial verdicts, responses to the petitions of officers of the princeps or private citizens, and mandates or instructions to his subordinates. Originally, the edicts were only valid during the principate of their author and the other forms of constitutions merely applied to special cases. However, in course of time, they all alike came to be recognized as establishing rules of public and private law which remained in force unless they were specifically revoked by another imperial constitution.