s. The Sansing or Ilan-Kirin Line
This is the second line of the inner semicircle. It starts from Sansing and proceeds southwestward along the right bank of the Mutan River through Tauchan, Erchan, Sanchan, and Szuchan, to Chengtse where it crosses the Harbin-Vladivostok line. Then it goes to Ninguta, after crossing over the Mutan River from right to the left bank. After Ninguta it proceeds southwestward passing through Wungcheng, Lanchichan, Talachan, and Fungwangtien, to Omu. From Omu it joins the Japanese Hweining-Kirin line and proceeds westward to Kirin. This line covers a distance of about 200 miles, along the fertile Mutan Valley.
t. The Kirin-Dolon Nor Line
This is the third line of the inner semicircle in the Tungchin system. It starts from Kirin and follows the old highway westward to Changchun where it meets the termini of the Chinese Eastern Railway from the north and the Japanese South Manchurian Railway from the south. After Changchun, it proceeds across the plain to Shuangshan where it meets the Tungchin-Hulutao line and the Japanese Szupingkai-Chengkiatun-Taonan line. From Shuangshan, it crosses the Liao River to Liaoyuan, thence it traverses the vast plain, crossing the Tungchin-Great Northern Port line and goes to Suitung where it meets the Hulutao-Hailar line. After Suitung, it proceeds up the Liao Valley
