, APP. XXX TRIPARTITE TREATY 3gg Herat, in the possession of the territories now subject to his Government. Article 18.— Shah Shuja-ul-Mulk binds himself and successors, to refrain from entering into negotiations with any foreign State without the knowledge and consent of the British and Sikh Governments, and to oppose any power having the design to invade the British and Sikh territories by force of arms, to the utmost of his ability. • his heirs, The .three powers, parties to this treaty, namely, the British Government, Maharaja Ranjit Sipgh, and Shah Shuja-ul-Mulk, cordially agree to the foregoing articles. There shall be no deviations from them, and in that case the present treaty shall be considered binding for ever, and this treaty shall come into operation from and after the date on which the seals and signatures of the three contracting parties shall have been affixed thereto. Done at Lahore, this 26th day of June, in the year of our Lord 1838, corresponding with the 15th of the month of Asarh 1895, era of ^Bikarmajit. Ratified by the Right Honourable the GovernorGeneral at Simla, on the 23rd day of July, a.d. 1838. (Signed) Auckland. Ranjit Singh. Shuja-ul-Mulk. APPENDIX XXXI INDUS AND SUTLEJ TOLL AGREEMENT OF 1839 Agreement entered into with the Government of Lahore, regarding the Duties to he levied on the Transit of Merchandise by the Rivers Sutleg and Indus, in modification of the Supplementary Articles of the Treaty of 1832. (Dated 19th May 1839.) Objections having been urged against the levy of the same duty on a boat of a small as on one of a large size, and the merchants having solicited that the duties might be levied on the maundage, or measurement, of the boats, or on the value of the goods, it is therefore agreed, that hereafter the whole duty shall be paid at one place, and either at Ludhiana, or Ferozepore, or at