The full complement of each of the twenty-five legions was 6100 foot, and 726 horse; and this continued with occasional variations, to be the strength of the legion for a period of four hundred years. The cohorts were ten in number; and the first, to which the defence of the eagle and the emperor’s image was consigned, was nearly double the strength of the others. These brigades became permanently attached to their distant quarters: in later times the same three legions occupied the province of Britain for two or more centuries. They were recruited ordinarily from the countries beyond Italy; in the first instance, from the Roman citizens in the provinces. But even while the rights of citizenship were extended, this restriction was gradually relaxed; and instead of being the requisite qualification for admission to the ranks, the freedom of the city was often bestowed on the veteran upon his discharge. Numerous battalions of auxiliaries, differently arrayed and equipped from the legionaries themselves, continued to be levied throughout the most warlike dependencies of the empire, and attached to each legionary division. It is generally computed that this force equalled in number that of the legions themselves, and thus we arrive at a total of 340,000 men, for the entire armies of the Roman Empire, exclusive of the battalions maintained in Rome itself. Augustus may be regarded as the founder of the naval power of the great military republic. She had exerted indeed her accustomed vigour on more than one occasion in equipping powerful fleets, in transporting military armaments, and sweeping marauders from the seas; but the establishment of a permanent maritime force, as one arm of the imperial government, was reserved for the same hand which was destined to fix the peace of the empire on a firm and lasting basis. While the influence of Rome extended over every creek and harbour of the Mediterranean, she had no rival to fear on the more distant coasts of the Atlantic Ocean or the Indian Ocean. But experience had shown that the germ of a great naval power still continued to exist in the inveterate habits of piracy, fostered throughout the inland seas by centuries of political commotion. The Cilician corsairs had distressed the commerce and insulted the officers of the republic; the armaments of Sextus had taken a bolder flight and menaced even the city with famine; a conjuncture might not be distant when the commander of these predatory flotillas would dispute the empire itself with the imperator of the Roman armies. Augustus provided against the hazard of such an encounter by equipping three powerful fleets. One of these he stationed at Ravenna on the upper, a second at Misenum on the lower sea, a third at Forum Julii (Fréjus) on the coast of Gaul. The two former squadrons amounted to 250 galleys each, the third to about half that number. Besides these armaments he posted a smaller flotilla on the