in good time. Each of these powers is entitled to intervene in the case. If one or more avail themselves of this right, the interpretation contained in the award is equally binding on them.
Article 85
Each party pays its own expenses and an equal share of the expenses of the tribunal.
Chapter IV. Arbitration by summary procedure
Article 86
With a view to facilitating the working of the system of arbitration in disputes admitting of a summary procedure, the Contracting Powers adopt the following rules, which shall be observed in the absence of other arrangements and subject to the reservation that the provisions of chapter III apply so far as may be.
Article 87
Each of the parties in dispute appoints an arbitrator. The two arbitrators thus selected choose an umpire. If they do not agree on this point, each of them proposes two candidates taken from the general list of the members of the Permanent Court exclusive of the members appointed by either of the parties and not being nationals of either of them; which of the candidates thus proposed shall be the umpire is determined by lot.
The umpire presides over the tribunal, which gives its decisions by a majority of votes.
Article 88
In the absence of any previous agreement the tribunal, as soon as it is formed, settles the time within which the two parties must submit their respective cases to it.
Article 89
Each party is represented before the tribunal by an agent, who serves as intermediary between the tribunal and the Government which appointed him.
Article 90
The proceedings are conducted exclusively in writing. Each party, however, is entitled to ask that witnesses and experts should be called. The tribunal has, for its part, the right to demand oral explanations from the agents
