(1) The parties may appoint counsel or advocates for the defence of their rights before the tribunal. They may also appoint delegates or special agents to attend the tribunal for the purpose of serving as intermediaries between them and the tribunal. The members of the Permanent Court, however, may not act as agents, counsel, or advocates except on behalf of the Power which has appointed them members of the Court (article 62). (2) The tribunal selects the languages for its own use and for use before it, unless the _Compromis_ has specified the languages to be employed (article 61). (3) As a rule the arbitral procedure is divided into the two distinct phases of written pleadings and oral discussions. The written pleadings consist of the communication by the respective agents to the members of the tribunal and to the opposite party of cases, counter-cases, and, if necessary, replies; the parties must annex thereto all papers and documents relied on in the case. This communication is to be made either directly or through the intermediary of the International Bureau, in the order and within the time fixed by the _Compromis_ (article 63). A duly certified copy of every document produced by one party must be communicated to the other party (article 64). Unless special circumstances arise, the tribunal does not meet until the pleadings are closed (article 65). (4) Upon the written pleadings follows the oral discussion in Court; it consists of the oral development of the pleas of the parties (article 63, last paragraph). The discussions are under the direction of the president of the tribunal, and are public only if it be so decided by the tribunal with the consent of the parties. Minutes with regard to the discussion are to be drawn up by secretaries appointed by the president, and only these official minutes, which are signed by the president and one of the secretaries, are authentic (article 66). During the discussion in Court the agents and counsel of the parties are authorised to present to the tribunal orally all the arguments they may think expedient in support of their case. They are likewise authorised to raise objections and to make incidental motions, but the decisions of the tribunal on these objections and motions are final and cannot form the subject of any further discussion (articles 70, 71). Every member of the tribunal may put questions to the agents and counsel of the parties and demand explanations from them on doubtful points, but neither such questions nor other remarks made by members of the tribunal may be regarded as expressions of opinion by the tribunal in general or the respective member in particular (article 72). The tribunal may always require from the agents of the parties all necessary explanations and the production of all acts, and in case of refusal the tribunal takes note of it in the minutes (articles 69).