One of the great changes in administrative machinery that has taken place in the civilised world within the last two hundred years is the substitution of an informal cabinet composed of the heads of departments, for a formal governing council of members who had themselves no direct administrative duties. The form of the old council has survived in England under the name of the Privy Council, but its functions have become a shadow. The Privy Council never meets as a whole now except for ceremonial purposes. Its action is, indeed, still legally necessary for the performance of many acts of state, such as the adoption of Orders in Council, and the like; but this is a formal matter, requiring the presence of only three persons, who follow the directions of a minister, for all cabinet ministers are members of the Privy Council. The Council does real work to-day only through its committees. Of these the most notable is the Judicial Committee, which sits as a court of appeal in ecclesiastical and colonial cases, and will be more fully described in a later chapter. Other committees, such as those on trade and on education, have at times rendered great service to the state, but the more important administrative committees have now been transformed into regular departments of the government. It is by no means certain, however, that the Privy Council may not, through its committees, become in the future an organ by means of which important political functions, especially in connection with the growth of the empire, will be evolved. At present it is mainly an honorary body. Its members are appointed for life, and bear the title of Right Honourable; and, indeed, of late years membership in the Council has been conferred as a sort of decoration for services in politics, literature, science, war, or administration. [Sidenote: Future of the Cabinet.]