Left Cheung Khawng on the 3d of May. Our passage down the Cambodia to Muang-Luang-Prabang was rapidly made, and occupied only five days, including the Sabbath. The distance to the latter place from Cheung Rai is probably about three hundred miles, or from Cheung Khawng nearly two hundred. The current of the Cambodia is very swift, in places so much so that it was dangerous to navigate. The river is nearly a mile wide in places, and where the channel is narrowed it rushes along with frightful rapidity. No scenery is finer, not even that of the Hudson, during the entire distance we traveled on it. Mountains rise from either bank to the height of three or four thousand feet. The river fills the bottom of a long winding valley, and as we glided swiftly down it there seemed to move by us the panorama of two half-erect, ever-changing landscapes of woodland verdure and blossom. Only as we neared the city did we see rough and craggy mountain-peaks and barren towering precipices. The villages along the river are few and small――from Cheung Khawng to within three hours’ travel of Muang-Luang-Prabang not more than six, averaging twenty to thirty houses each. About three hours from the latter city is the mouth of the Ma-Oo River. This river comes down from the north and drains the country of the Liews. Muang-Luang-Prabang is the capital city of a Laos province which is perhaps even more extensive than Cheung Mai. The population of the city has been variously estimated. My companion on the tour agrees with me in placing the figure at twenty or twenty-five thousand. It is probably the third largest city in the kingdom of Siam or tributary to it. Ayuthia is the second, and Cheung Mai probably the fourth. While the city itself contains a larger population than Cheung Mai, it has not, like this, a large rural population in its immediate vicinity. It is situated on the east bank of the Cambodia, on a plain which is not more than four or five miles wide. A few miles above and below the city the plain is bounded by high mountains, which reach to the river and form its banks. A small river, the Ma-Kahn, comes in from the east and divides the city into two unequal portions. The plain immediately back of the city is not cultivated nor inhabited. We were told that there were a number of villages on the banks of the Ma-Kahn. During the season of high water boats ascend this stream――a month’s journey. I presume it is then the highway on which the Kamoos bring their produce to the Muang-Luang-Prabang market. The city is more compact than any of the Laos cities which we visited. Its market is not so large as that in Cheung Mai, but we found in it, besides the fruits and vegetables of the country, many articles, especially cloths, of foreign manufacture. These are brought from Bangkok. The meats in the market are fish, pork and fowls. The former are abundant; many of them, taken from the Cambodia River, would weigh over a hundred pounds each. DIFFERENT TRIBES.