This line starts from Chengtu and proceeds southwestward by Shuangliu, Hsintsin, Mingshan, to Yachow. From Yachow, it turns northwestward and proceeds to Tienchuan, then westward to Tatsienlu, Tunyolo, and Litang. After Litang, the line proceeds southwestward through Batang and Yakalo, to Menkong, covering a distance of about 400 miles of very mountainous country. m. The Chengtu-Yuankiang Line This line starts from Chengtu on the same track of the Chengtu-Menkong line, proceeds to Yachow and thence by its own track in the same direction via Jungching, to Tsingliu. After Tsingliu, the line proceeds southward through Yuehsi to Ningyuan, where it meets the head of the Ningyuan-Cherchen line. After Ningyuan, it goes to Kwaili, then crosses the Kinshakiang to Yunnanfu where it crosses the Canton-Tali line. From Yunnanfu, it proceeds along the west side of the Kunming Lake to Kunyang, and through Hsinshing, Hsingo, to Yuankiang, where the line ends by joining the Canton-Szemo line. It covers a distance of about 600 miles. n. The Suifu-Tali Line This line starts from Suifu and proceeds along the left bank of the Yangtze River to Pingshan and Lupo. After Lupo, it turns away from the river in a southwesterly direction and scales the Taliangshan Mountains to Ningyuan, where it crosses the Chengtu-Yuankiang line and meets the termini of the Canton-Ningyuan line and the Ningyuan-Cherchen line. Thence continuing in the same direction, it crosses the Yalungkiang to Yenyuan and Yungpeh. After Yungpeh, the line turns more southward, across the Kinshakiang to Sincheng and thence to Tali, where it ends by meeting the Canton-Tali line and the Lhasa-Tali line. It covers a distance of about 400 miles. o. The Suifu-Mengting Line This line starts from Suifu on the same track as the Suifu-Tali line as far as Lupo. From Lupo, it goes on its own track across the Yangtze River here known as the Kinshakiang, and follows the right side of that river upward to its southward bend where it crosses the Chengtu-Yuankiang line, to Yuanmow. From Yuanmow, it proceeds to Tsuyung, where it crosses the Canton-Tali line, thence to Kingtung. After Kingtung, it proceeds southwestward across the Lantsangkiang or Mekong River, to Yunchow, thence turning southwestward, it follows a branch of the Lukiang River to Mengting and ends on the frontier. This line covers a distance of about 500 miles. p. The Iden-Gartok Line