Chapter I, rule 38, of the Original Side of the Calcutta High Court provides as follows: "An Advocate of any other High Court or Chief Court may with the permission of the Chief Justice appear and plead for parties in matters arising in or out of the original jurisdiction, or in or out of appeals therefrom, provided he is a member of the Bar of England or of Northern Ireland, or a member of the Faculty of Advocates in Scotland, or a person entitled to appear and plead the Original Side of the High Court of Judicature at Bombay, and that he is properly instructed by an Attorney " 55 There is also a rule framed under section 15 (b) of the which applies to the Appellate Side of the Calcutta High Court prescribing that an advocate of another High Court can "appear and plead" the Appellate Side of the Calcutta High Court in a particular case or cases only with the previous permission of the Chief Justice.