have agreed in advance upon the place of arbitration. Article 19 deals with the arbitrator's· terms of reference. The arbitrator is required, before hearing of the case commences, to draw up in the presence of the parties a statement defining his terms of reference including the names and addresses of the parties, brief statement of the claims of the parties, terms of reference, statement of the case, indication of the points at issue to be determined, the place of arbitration proceeding, and all other matters in order that the award when made shall be enforce· able at law, or which in the opinion of the Court of Arbitration and the arbitrator, it is desirable to specify. Article 20 deals with the hearing of the case by the arbitrator and Art. 21 specifies the powers of the arbitrator. The arbitrator is competent to decide the dispute on the basis of the relevant docu· ments, unless one of the parties requests that a hear· ing be given. The arbitrator may suo motu, or on the request of the· parties, summon the parties to appear before him at a specified place and time and if the parties or any of them having been duly summoned, fail to appear before the arbitrator he may, after satisfying himself that the summons was duly served upon the party or parties, proceed with the arbitration ex parte. Article 23 provides that the award shall be made within sixty days from the date ori which the signed statements under Article 19 are submitted, but time may be extended by the Court of Arbitration. Article 25 deals with the decision regarding the costs of arbitration, arbitrator's fee and the administrative costs. By Article 26 the arbitrator has before completing the award to submit the same to the Court of Arbitration. The Court of Arbitration may lay down modifications as to its form and if need be draw the arbitrator's attention even to points connected with the merits of the case, and no award shall under any circumstances be issued until approved as to its fonn by the Court ef Arbitration. Articles 27 and 28 deal with th~