Page:Roman History of Ammianus Marcellinus.djvu/419

 beg him to come with all speed; and for ten days the empire was without a ruler, which the soothsayer Marcus, by an inspection of entrails at Rome, announced to be the case at that moment in Asia.

6. But in the meanwhile, to prevent any attempt to overturn what had been thus settled, or any movement on the part of the fickle soldiers to set aside the election in favour of some one on the spot, Equitius and Leo, who was acting as commissary under Dagalaiphus the commander of the cavalry, and who afterwards incurred great odium as master of the offices, strove with great prudence and vigilance to establish, to the best of their power, what had been the decision of the whole army, they being also natives of Pannonia, and partisans of the emperor elect.

7. When Valentinian arrived in answer to the summons he had received, either in obedience to omens which guided him in the prosecution of the affair, as was generally thought, or to repeated warnings conveyed in dreams, he would not come into public or be seen by any one for two days, because he wished to avoid the bissextile day of February which came at that time, and which he knew to have been often an unfortunate day for the Roman empire: of this day I will here give a plain explanation.

8. The ancients who were skilled in the motions of the world and the stars, among whom the most eminent are Meton, Euctemon, Hipparchus, and Archimedes, define it as the period of the revolving year when the sun, in accordance with the laws which regulate the heavens, having gone through the zodiac, in three hundred and sixty-five days and nights, returns to the same point: as, for instance, when, after having moved on from the second degree of the Ram, it returns again to it after having completed its circuit.

9. But the exact period of a year extends over the number of days above mentioned and six hours more. And so the correct commencement of the next year will not begin till after midday and ends in the evening. The third year begins at the first watch, and lasts till the sixth hour of the night. The fourth begins at daybreak.

10. Now as the beginning of each year varies, one commencing at the sixth hour of the day, another at the same hour