"At the place where we reach the Great Wall there is a Chinese city called Chan-kia-kow; but it is known to the Russians as Kalgan. It is the frontier town of Mongolia, and the Russians have a great deal of commerce with it. It stands in a valley, and so high are the mountains around it that the sun does not rise until quite late in the forenoon. Doctor Bronson said there is a town somewhere in the Rocky Mountains of America which is so shut in that the sun does not rise there until about eleven o'clock next day; and we thought it might possibly be a relative of Chan-kia-kow. There is an odd sort of population here, as the merchants who trade with the Russians are from all parts of China; and then there are Mongols from the Desert of Gobi, and a very fair number of real Russians. [Illustration: THE HILLS NEAR CHAN-KIA-KOW.] "One curious article of trade consisted of logs from the country to the north. They are cut in lengths of about six feet, and are intended for coffins for the people of the southern part of the empire. Wood is scarce in the more densely inhabited portions of China, and must be carried for great distances. It is six hundred miles from the Great Wall to where these logs are cut, and so they must be carried seven hundred miles in all before they reach Pekin. The carts on which they are loaded are very strong, and have not a bit of iron about them. "We are now at the Great Wall, which comes straggling over the hills that surround the city, and forms its northern boundary. It is very much in ruins, but at the town itself there is a portion of it kept in good repair, and one of the gates is regularly shut at night and opened in the morning. Some of the old towers are still in their places; but the weather is slowly wearing them away, and in time they will all be fallen. "The Great Wall is certainly one of the wonders of the world, and it was very much so at the time of its construction. It was built two thousand years ago, and is about twelve hundred miles long. It runs westward from the shores of the Gulf of Pe-chi-li to what was then the western frontier of the Chinese Empire. For the greater part of the way it consists of a wall of earth faced with stone or brick, and it is paved on the top with large tiles. It is about twenty-five feet wide at the bottom, and diminishes to fifteen feet wide at the top, with a height of thirty feet. In many places it is not so substantial as this, being nothing more than a wall of earth faced with brick, and not more than fifteen feet high. At varying intervals there are towers for watchmen and soldiers. They are generally forty or fifty feet high, and about three hundred feet apart. "The wall follows all the inequalities of the surface of the earth, winding over mountains and through valleys, crossing rivers by massive archways, and stretching straight as a sunbeam over the level plain.