veto.[1629] The method of the tribunes in the pre-decemviral period was, by the means above indicated, to force a proposed measure upon the patrician magistrates, and to compel them to bring it before the centuriate assembly in regular form.[1630] In view of the circumstances that passed bills alone were recorded and hence could be known to posterity, we may reject as unauthentic all the alleged proposals of agrarian laws of this period,[1631] which however may not have been free from agitation of the kind. A law of the year 471 gave the tribunician assembly a tribal organization. This measure, brought about by the agitation of Publilius Volero, tribune of the plebs of that year,[1632] must, for the reason above mentioned, have been an act of the comitia centuriata.[1633] The motive given by Livy was the desire of the tribunes to free themselves from the influence which the patricians through the votes of their clients exercised on the assembly.[1634] The curiae contained all the citizens,[1635] the tribes none but the landowners. The tribal organization, therefore, excluded not all the clients but those only, together with any other citizens, who were landless.[1636] Probably in other ways the patricians had greater control of the curiate than of the tribal assemblies, although it is impossible to believe with Dionysius[1637] that the essence of the change from the curiate to the tribal comitia consisted in the elimination of auspical influence. That the law forbade the patricians to take part in tribunician assemblies, as Zonaras[1638] imagines, is not probable, for it gave the tribune no new authority over the patricians; he had power neither to summon them to his assembly nor to expel them from it.[1639] In fact we have evidence of the presence of patricians in tribunician assemblies after this date.[1640] The so-called law of Publilius Volero, now under discussion, was confused by the sources with the Publilian law of 339, some of the provisions of the later act being uncritically assigned to the earlier.[1641] The statute of 471 imparted to the tribunician assembly no new function. Although in mentioning the bill Dionysius[1642] includes a proposal to grant the assembly legislative power, when he comes to speak of the statute as actually passed, he refers only to its provisions for the election of plebeian tribunes and aediles by the tribes, herein agreeing with Livy and other authorities.[1643] In the same year four tribunes of the plebs were elected for the first time.[1644] The increase was probably effected by an article of the statute under discussion.