Appellate courts are of many kinds. Some are such exclusively; some mainly. In others the functions of entertaining appeals is a minor one, most of their time being occupied in trying original causes. An appeal from judgments of a justice of the peace, for instance, is generally given on the merits to county courts, but the greater part of the litigation before them comes there in the first instance. So the judgments of county or other minor courts are often reviewable on appeal for errors in law in some superior court which, like them, is principally occupied in the exercise of an original jurisdiction. When the American colonies passed into States, as has been seen, they were habituated to the thought of a supreme controlling authority exercised by one tribunal of a judicial character of last resort. The judicial committee of the Privy Council had administered this sovereign power for them, and for a long period of years, with general acquiescence.[Footnote: See Chap. I.] The uniformity of result thus obtained was acknowledged to be advantageous. It was now necessary to replace them by American courts of last resort, and it was not difficult in doing so to improve upon the English model. The time had come for separating, as far as it could conveniently be accomplished, judicial from political power. Virginia was the first to act. A few days before the Declaration of Independence she adopted a Constitution (under which the government, was carried on until 1830, though it was never formally submitted to or ratified by the people) providing for a separate judiciary headed by a Supreme Court of Appeals whose judges should hold office during good behavior, and be ineligible to the Privy Council or General Assembly. This divorce of judiciary and legislature was not the plan universally followed. New Jersey, in which as a colony the Governor and Council had possessed an appellate power like that vested in the English House of Lords, was so well satisfied with this arrangement as to continue it in her Constitution of July 3, 1776, and up to the present time puts upon her Supreme Court a certain number of judges who give but a part of their time to this work, and are not necessarily (though in practice of late years they generally have been) lawyers.