shattered against its ramparts; had not the onset been aided by treachery, the stronghold would probably have proved impregnable. But signal as were the triumphs of the Tokugawa chieftain in the field, what distinguishes him from all his predecessors is the ability he displayed in consolidating his conquests. The immense estates that fell into his hands he parcelled out in such a manner that all important strategical positions were held by daimyos whose fidelity could be confidently trusted, and every feudatory of doubtful loyalty found his fief within touch of a Tokugawa partisan. This arrangement, supplemented by a system which required all the great daimyos to have mansions in the shogun's capital. Yedo, to keep their families there always and to reside there themselves in alternate years, proved so potent a check to disaffection that from 1615, when the castle of Osaka fell, until 1864, when the Choshu ronin attacked Kioto, Japan remained entirely free from civil war. It is possible to form a clear idea of the ethical and administrative principles by which Iyeyasu and the early Tokugawa chiefs were guided in elaborating the system which gave to Japan an unprecedented era of peace and prosperity. Evidence is furnished not only by the system itself but also by the contents of a document generally called the _Testament of Iyeyasu_, though probably it was not fully compiled until the time of his grandson, Iyemitsu (1623-1650). The great Tokugawa chief, though he munificently patronized Buddhism and though he carried constantly in his bosom a miniature Buddhist image to which he ascribed all his success in the field and his safety in battle, took his ethical code from Confucius. He held that the basis of all legislation and administration should be the five relations of sovereign and subject, parent and child, husband and wife, brother and sister, friend and friend. The family was, in his eyes, the essential foundation of society, to be maintained at all sacrifices. Beyond these broad outlines of moral duty it was not deemed necessary to instruct the people. Therefore out of the hundred chapters forming the _Testament_ only 22 contain what can be called legal enactments, while 55 relate to administration and politics; 16 set forth moral maxims and reflections, and the remainder record illustrative episodes in the career of the author. No distinct line is drawn between law and morals, between the duty of a citizen and the virtues of a member of a family. Substantive law is entirely wanting, just as it was wanting in the so-called constitution of Prince Shotoku. Custom, as sanctioned by public observance, must be complied with in the civil affairs of life. What required minute exposition was criminal law, the relations of social classes, etiquette, rank, precedence, administration and government. Social distinctions in the Tokugawa Era.