These four tribes may be looked at either as religious and social aggregates, in which capacity each of them comprised three phratries and ninety gentes; or as political aggregates, in which point of view each included three trittyes and twelve naukraries. Each phratry contained thirty gentes; each trittys comprised four naukraries: the total numbers were thus three hundred and sixty gentes and forty-eight naukraries. Moreover, each gens is said to have contained thirty heads of families, of whom therefore there would be a total of ten thousand eight hundred. Comparing these two distributions one with the other, we may remark that they are distinct in their nature and proceed in opposite directions. The trittys and the naukrary are essentially fractional subdivisions of the tribe, and resting upon the tribe as their higher unity; the naukrary is a local circumscription, composed of the naukrars, or principal householders (so the etymology seems to indicate), who levy in each respective district the quota of public contributions which belongs to it, and superintend the disbursement,—provide the military force incumbent upon the district, being for each naukrary two horsemen and one ship,—and furnish the chief district-officers, the prytanes of the naukrari.[81] A certain number of foot soldiers, varying according to the demand, must probably be understood as accompanying these horsemen, but the quota is not specified, as it was perhaps thought unnecessary to limit precisely the obligations of any except the wealthier men who served on horseback,—at a period when oligarchical ascendency was paramount, and when the bulk of the people was in a state of comparative subjection. The forty-eight naukraries are thus a systematic subdivision of the four tribes, embracing altogether the whole territory, population, contributions, and military force of Attica,—a subdivision framed exclusively for purposes connected with the entire state. [81] About the naukraries, see Aristot. Fragment. Rerum Public., p. 89, ed. Neumann; Harpokration, vv. Δήμαρχος, Ναυκραρικὰ; Photius, v. Ναυκραρία; Pollux, viii, 108; Schol. ad Aristoph. Nubes, 37. Οἱ πρυτάνεις τῶν Ναυκράρων, Herodot. v, 71: they conducted the military proceedings in resistance to the usurpation of Kylôn.