On the day of his first appearance in the senate Domitian spoke a 40 few moderate sentences regretting the absence of his father and brother.  His behaviour was most proper, and, as his character was still an unknown quantity, his blushes were taken for signs of modesty.[341] He moved from the chair that all Galba’s honours should be restored, to which Curtius Montanus proposed an amendment that some respect should also be paid to the memory of Piso.  The senate approved both proposals, though nothing was done about Piso.  Next, various commissions were appointed by lot to restore the spoils of war to the owners; to examine and affix the bronze tablets of laws, which in course of time had dropped off the walls; to revise the list of public holidays, which in these days of flattery had been disgracefully tampered with; and to introduce some economy into public expenditure.  Tettius Julianus was restored to his praetorship as soon as it was discovered that he had taken refuge with Vespasian:  but Grypus was allowed to retain his rank.[342] It was then decided to resume the hearing of the case of Musonius Rufus against Publius Celer[343] Publius was convicted and the shade of Soranus satisfied.  This strict verdict made the day memorable in the annals of Rome, and credit was also due to private enterprise, for everybody felt that Musonius had done his duty in bringing the action.  On the other hand, Demetrius, a professor of Cynic philosophy, earned discredit for defending an obvious criminal[344] more for ostentatious motives than from honest conviction.  As for Publius, courage and fluency alike failed him at the critical moment.  This trial was the signal for further reprisals against prosecutors.  Junius Mauricus[345] accordingly petitioned Domitian that the senate might be allowed access to the minutes of the imperial cabinet, in order to find out who had applied for leave to bring a prosecution and against whom.  The answer was that on such a question as this the emperor must be consulted.  Accordingly, at 41 the instigation of its leading members, the senate framed an oath in these words, ’I call heaven to witness that I have never countenanced any action prejudicial to any man’s civil status, nor have I derived any profit or any office from the misfortune of any Roman citizen.’  The magistrates vied with each other in their haste to take this oath, and the other members did the same, when called upon to speak.  Those who had a guilty conscience were alarmed, and managed to alter the wording of the oath by various devices.  The house meanwhile applauded every sign of scruple, and protested against each case of perjury.  This kind of informal censure fell most severely on Sariolenus Vocula, Nonius Attianus, and Cestius Severus, who were notorious as habitual informers under Nero.  Against Sariolenus there was also a fresh charge of having continued his practices with Vitellius.  The members went on shaking their fists at him until he left the house.  They next