under the Legal Practitioners Act) shall be referred to the registrar for taxation and may be taxed by him or such other taxing officer as the Chief Judge may appoint. (2) The party applying for taxation shall file the bill and give notice to any other parties entitled to be heard on the taxation and shall at the same time, if he has not already done so, supply them with a copy of the bill. (3) If any party entitled to be heard on the taxation does not attend within a reasonable time after the time appointed the taxing officer may proceed to tax the bill upon being satisfied that such party had due notice of the time appointed. (4) The fees payable on taxation shall be paid by the party on whose application the bill is taxed and shall be allowed as part of the bill. 71. The Registrar may require any application to be made by motion or by summons. 72. All powers exercisable under this Order by a Judge in chambers may be exercised by the registrar. 73. (1) Any person aggrieved by a decision or requirement of the registrar may appeal by summons to a Judge. (2) If, in the case of an appeal under paragraph (1) of this rule, any person besides the appellant appeared or was represented before the registrar from whose decision or requirement the appeal is brought, the summons shall be issued within seven days thereof for hearing on the first available day and shall be served on every such person concerned. 74. (1) A Judge or the registrar may direct that a notice of motion or summons for the service of which no other provision is made in this Order shall be served on such person or persons as the Judge or registrar may direct. (2) Where by the provisions of this Order or by any direction given under paragraph (1) of this rule, a notice of motion or summons is required to be served on any person, it shall be served not less than five days before the hearing of the motion or summons. 75. Unless the Registrar otherwise directs or this Order provides, any notice or other document required to be given or served on any person may be given or served by leaving it at or by sending it by prepaid registered post to, that person's address for service or if he has no address for service, his last known address. 76. Every affidavit used in non-contentious probate business shall satisfy the requirements of Order 9 of these Rules. 77. The provisions of Order 22 of these Rules shall apply to the computation, enlargement and abridgement of time under this Order. 78. Subject in any particular case to any direction given by a Judge, this Order shall apply to any proceeding which is pending on the date on which these Rules come into operation as well as to any proceeding commenced on or after that date: Provided that where the deceased died before the commencement of these Rules, the right to a grant shall, subject to the provisions of any enactment, be determined by the principles and rules in accordance with which the Court would have acted at the date of the death. 79. Suits respecting probate shall be instituted and carried on a nearly as possible in the like manner and subject to the same Rules of procedure as suits in respect of ordinary civil claims. 80. (1) The Interpretation Act shall apply to the interpretation of this Order. (2) In this Order, unless the context otherwise requires"authorised officer" means any officer of a registry who is for the time being authorised by law to administer any oath or to take any affidavit required for any purpose connected with his duties;