But the trouble was not at an end yet; for as the English and French ambassadors,[24] with an escorting squadron, were on their way to Pekin to ratify the treaty which had been drawn up, they were attacked and repulsed before the Taku forts. This brought about a renewal of the war, and Pekin was taken October 1860, and the Treaty of Tientsin was ratified. Five new ports[25] were opened. A British ambassador was to be established at Pekin and a Chinese ambassador in London. Consuls were to be stationed at all the open ports. Not a word was mentioned about opium in the treaty itself, but, in pursuance of Article 26, an agreement was entered into five months later concerning the tariff regulations, wherein "the Chinese Government admitted opium as a legal article of import, not under constraint, but _of their own free will deliberately_."[26] To a similar effect is the testimony of Mr. Oliphant, another secretary to the mission, whose evidence on this point will readily be considered conclusive. He affirms that he informed the Chinese Commissioner "that he had received instructions from Lord Elgin[27] not to insist on the insertion of the drug in the tariff, should the Chinese Government wish to omit it." But the Commissioner _declined to omit it_. An increase of duty was then proposed, but this was objected to by the Chinese themselves as affording a temptation to smugglers. It is clear, then, that no force came into play at all, except it were the force of circumstances, and opium--like all other articles except munitions of war and salt, which remained contraband--was admitted under a fixed tariff. This in the case of opium was fixed at thirty taels per picul (133-1/3 lbs.), and it was further agreed that opium should only be sold at the port; that the likin or transit dues should be regulated as the Chinese Government thought fit. The terms of this tariff were to be revisable after the lapse of ten years.