The capital, Yunnan, lies upon the north shore of Lake Tien, and is a town of note, having, moreover, considerable political importance from its trade with other parts of the country through the Yangtsz’, and with Burmah. The city was seriously injured in 1834, by an earthquake, which is said to have lasted three entire days, forcing the inhabitants into tents or the open fields, and overthrowing every important building.[91] The traffic between this province and Burmah centres at the fortified post of Tsantah, in the district of Tăngyueh, both of them situated on a branch of the Irrawadi. The principal part of the commodities is transported upon animals from these dépôts to Bhamo, upon the Irrawadi, the largest market-town in this part of Chin-India. The Chinese participate largely in this trade, which consists of raw and manufactured silk to the amount of $400,000 annually, tea, copper, carpets, orpiment, quicksilver, vermilion, drugs, fruits, and other things, carried from their country in exchange for raw cotton to the amount of $1,140,000 annually, ivory, wax, rhinoceros and deer’s horns, precious stones, birds’ nests, peacocks’ feathers, and foreign articles. The entire traffic is probably $2,500,000 annually, and for a few years past has been regularly increasing. There is considerable intercourse and trade on the southern frontiers with the Lolos, or Laos and Annamese,[92] partly by means of the head-waters of the Meinam and Meikon--which are supposed to communicate with each other by a natural canal--and partly by caravans over the mountains. Yunnan fu was the capital of a Chinese prince about the time of the decadence of the Ming dynasty, who had rendered himself independent in this part of their empire by the overthrow of the rebel Lí, but having linked his fortunes with an imbecile scion of that house, he displeased his officers, and his territories gradually fell under the sway of the conquering Manchus. The southern and western districts of the province are inhabited by half-subdued tribes who are governed by their own rulers, under the nominal sway of the Chinese, and pass and repass across the frontiers in pursuit of trade or occupation.