This Amur is likewise called the Black River by the Mantechoux Tartars, and the Dragon's River by the Chinese. It was in these countries, so long unknown, that the Russians and Chinese contested the limits of their empires.[37] The Russians had some forts on the river Amur, about three hundred leagues from the great wall. Many hostilities had arisen between these two nations on account of these forts: at length both began to understand their interests better; the emperor Camhi preferred peace and commerce to an unprofitable war, and sent several ambassadors to Niptchou, one of those settlements. The ambassadors had ten thousand men in their retinue, including their escort: this was Asiatic pomp; but what is very remarkable, is, that there was not an example in the annals of the empire, of an embassy being sent to another potentate; and what is still more singular, that the Chinese had never concluded a treaty of peace since the foundation of their monarchy. Though twice conquered by the Tartars, who attacked and subjected them, they never made war upon any people, excepting a few hordes that were quickly subdued, or as quickly left to themselves, without any treaty. So that this nation, so renowned for morality, knew nothing of what we call the 'Law of nations;' that is to say, of those vague rules of war and peace, of the privileges of foreign ministers, of the formalities of treaties, nor of the obligations resulting from thence, nor of the disputes concerning precedency and point of honour. But in what language were the Chinese to negotiate with the Russians, in the midst of deserts? This difficulty was removed by two jesuits, the one a Portuguese, named Pereira, the other a Frenchman, whose name was Gerbillon; they set out from Pekin with the Chinese ambassadors, and were themselves the real negotiators. They conferred in Latin with a German belonging to the Russian embassy, who understood this language. The chief of that embassy was Golowin, governor of Siberia, who displayed a greater magnificence than the Chinese themselves, and thereby gave a high idea of the Russian empire, to a people who thought themselves the only powerful nation under the sun. The two jesuits settled the limits of both empires at the river Kerbechi, near the spot where the treaty was concluded. All the country, to the southward of this line of partition, was adjudged to the Chinese, and the north to the Russians, who only lost a small fort which was found to have been built beyond the limits: a peace was agreed to, and after some few altercations, both parties swore to observe it, in the name of the same God;[38] and in these terms, 'If any of us shall entertain the least thought of kindling anew the flames of war, we beseech the supreme Lord of all things, and who knows all hearts, to punish the traitor with sudden death.'