Article 58
When the compromis is settled by a commission, as contemplated in article 54, and in the absence of an agreement to the contrary, the commission itself shall form the arbitration tribunal.
Article 59
Should one of the arbitrators either die, retire, or be unable for any reason whatever to discharge his functions, the same procedure is followed for filling the vacancy as was followed for appointing him.
Article 60
The tribunal sits at The Hague, unless some other place is selected by the parties.
The tribunal can sit in the territory of a third power only with the latter's consent.
The place of meeting once fixed cannot be altered by the tribunal, except with the consent of the parties.
Article 61
If the question as to what languages are to be used has not been settled by the compromis, it shall be decided by the tribunal.
Article 62
The parties are entitled to appoint special agents to attend the tribunal to act as intermediaries between themselves and the tribunal.
They are further authorized to retain for the defense of their rights and interests before the tribunal, counsel or advocates appointed by themselves for this purpose.
The members of the Permanent Court may not act as agents, counsel, or advocates except on behalf of the power which appointed them members of the Court.
Article 63
As a general rule, arbitration procedure comprises two distinct phases: pleadings and oral discussions.
The pleadings consist in the communication by the respective agents to the members of the tribunal and the opposite party of cases, countercases, and, if necessary, of replies; the parties annex thereto all papers and documents called for in the case. This communication shall be made either directly or through the intermediary of the International Bureau, in the order and within the time fixed by the compromis.
